[PATCH 4/6] qemu: Use JSON directly for '-device'

Peter Krempa pkrempa at redhat.com
Mon Oct 18 07:37:10 UTC 2021


Starting with QEMU-6.2 started accepting a JSON object as argument for
'-device' which will also become the only syntax considered stable by
qemu in the future.

Since libvirt was recently converted to generate the properties via JSON
to begin wit we can start using it on the commandline as well, by simply
enabling the QEMU_CAPS_DEVICE_JSON capability, which we do by probing
for the 'json-cli' feature flag of 'device_add'.

Normally a change which changes a commandline output should be happening
only after the impacted real-caps test files are forked in the version
preceding the change, but in this case it's not necessary as the logic
for generating the device properties stays identical and we just change
the output format (avoid conversion). Additionally we still have a lot
of tests validating the conversion to the old commandline options.

Signed-off-by: Peter Krempa <pkrempa at redhat.com>
---
 src/qemu/qemu_capabilities.c                  |  1 +
 .../caps_6.2.0.x86_64.xml                     |  1 +
 .../audio-alsa-best.x86_64-latest.args        |  4 +-
 .../audio-alsa-full.x86_64-latest.args        |  4 +-
 .../audio-alsa-minimal.x86_64-latest.args     |  4 +-
 .../audio-coreaudio-best.x86_64-latest.args   |  4 +-
 .../audio-coreaudio-full.x86_64-latest.args   |  4 +-
 ...audio-coreaudio-minimal.x86_64-latest.args |  4 +-
 ...udio-default-nographics.x86_64-latest.args |  4 +-
 .../audio-default-sdl.x86_64-latest.args      |  6 +--
 .../audio-default-spice.x86_64-latest.args    |  6 +--
 .../audio-default-vnc.x86_64-latest.args      |  6 +--
 .../audio-file-best.x86_64-latest.args        |  4 +-
 .../audio-file-full.x86_64-latest.args        |  4 +-
 .../audio-file-minimal.x86_64-latest.args     |  4 +-
 .../audio-jack-full.x86_64-latest.args        |  4 +-
 .../audio-jack-minimal.x86_64-latest.args     |  4 +-
 .../audio-many-backends.x86_64-latest.args    | 14 +++----
 .../audio-none-best.x86_64-latest.args        |  4 +-
 .../audio-none-full.x86_64-latest.args        |  4 +-
 .../audio-none-minimal.x86_64-latest.args     |  4 +-
 .../audio-oss-best.x86_64-latest.args         |  4 +-
 .../audio-oss-full.x86_64-latest.args         |  4 +-
 .../audio-oss-minimal.x86_64-latest.args      |  4 +-
 .../audio-pulseaudio-best.x86_64-latest.args  |  4 +-
 .../audio-pulseaudio-full.x86_64-latest.args  |  4 +-
 ...udio-pulseaudio-minimal.x86_64-latest.args |  4 +-
 .../audio-sdl-best.x86_64-latest.args         |  4 +-
 .../audio-sdl-full.x86_64-latest.args         |  4 +-
 .../audio-sdl-minimal.x86_64-latest.args      |  4 +-
 .../audio-spice-best.x86_64-latest.args       |  4 +-
 .../audio-spice-full.x86_64-latest.args       |  4 +-
 .../audio-spice-minimal.x86_64-latest.args    |  4 +-
 .../blkdeviotune-group-num.x86_64-latest.args |  8 ++--
 ...blkdeviotune-max-length.x86_64-latest.args |  8 ++--
 .../blkdeviotune-max.x86_64-latest.args       |  8 ++--
 .../channel-unix-guestfwd.x86_64-latest.args  |  4 +-
 .../console-virtio-unix.x86_64-latest.args    | 10 ++---
 .../controller-virtio-scsi.x86_64-latest.args | 24 +++++------
 ...-Icelake-Server-pconfig.x86_64-latest.args |  4 +-
 .../cpu-host-model.x86_64-latest.args         | 10 ++---
 .../cpu-translation.x86_64-latest.args        |  4 +-
 .../cputune-cpuset-big-id.x86_64-latest.args  |  6 +--
 .../devices-acpi-index.x86_64-latest.args     | 16 +++----
 .../disk-aio-io_uring.x86_64-latest.args      |  6 +--
 .../disk-aio.x86_64-latest.args               |  8 ++--
 ...-backing-chains-noindex.x86_64-latest.args | 16 +++----
 .../disk-blockio.x86_64-latest.args           |  8 ++--
 .../disk-boot-cdrom.x86_64-latest.args        |  6 +--
 .../disk-boot-disk.x86_64-latest.args         |  6 +--
 .../disk-cache.x86_64-latest.args             | 14 +++----
 .../disk-cdrom-bus-other.x86_64-latest.args   |  6 +--
 ...m-empty-network-invalid.x86_64-latest.args |  4 +-
 .../disk-cdrom-network.x86_64-latest.args     | 10 ++---
 .../disk-cdrom-tray.x86_64-latest.args        | 10 ++---
 .../disk-cdrom.x86_64-latest.args             | 10 ++---
 .../disk-copy_on_read.x86_64-latest.args      | 12 +++---
 .../disk-detect-zeroes.x86_64-latest.args     |  8 ++--
 .../disk-discard.x86_64-latest.args           |  8 ++--
 .../disk-error-policy.x86_64-latest.args      |  8 ++--
 .../disk-floppy-q35-2_11.x86_64-latest.args   | 12 +++---
 .../disk-floppy-q35-2_9.x86_64-latest.args    | 12 +++---
 .../disk-floppy-tray.x86_64-latest.args       | 10 ++---
 .../disk-floppy.x86_64-latest.args            |  8 ++--
 .../disk-fmt-qcow.x86_64-latest.args          |  6 +--
 .../disk-geometry.x86_64-latest.args          |  6 +--
 .../disk-ide-split.x86_64-latest.args         |  8 ++--
 .../disk-ide-wwn.x86_64-latest.args           |  6 +--
 .../disk-ioeventfd.x86_64-latest.args         | 12 +++---
 .../disk-metadata-cache.x86_64-latest.args    |  8 ++--
 .../disk-network-gluster.x86_64-latest.args   |  8 ++--
 .../disk-network-http.x86_64-latest.args      | 10 ++---
 .../disk-network-iscsi.x86_64-latest.args     | 18 ++++----
 .../disk-network-nbd.x86_64-latest.args       | 12 +++---
 .../disk-network-nfs.x86_64-latest.args       |  6 +--
 ...sk-network-rbd-no-colon.x86_64-latest.args |  8 ++--
 .../disk-network-rbd.x86_64-latest.args       | 14 +++----
 ...isk-network-source-auth.x86_64-latest.args |  8 ++--
 ...isk-network-tlsx509-nbd.x86_64-latest.args |  4 +-
 .../disk-no-boot.x86_64-latest.args           |  8 ++--
 .../disk-nvme.x86_64-latest.args              | 12 +++---
 .../disk-order.x86_64-latest.args             | 12 +++---
 .../disk-readonly-disk.x86_64-latest.args     |  8 ++--
 .../disk-rotation.x86_64-latest.args          | 12 +++---
 .../disk-sata-device.x86_64-latest.args       |  8 ++--
 .../disk-scsi-device-auto.x86_64-latest.args  | 10 ++---
 .../disk-scsi-disk-split.x86_64-latest.args   | 20 ++++-----
 .../disk-scsi-disk-vpd.x86_64-latest.args     | 12 +++---
 .../disk-scsi-disk-wwn.x86_64-latest.args     | 12 +++---
 ...sk-scsi-lun-passthrough.x86_64-latest.args | 12 +++---
 .../disk-scsi.x86_64-latest.args              | 26 ++++++------
 .../disk-serial.x86_64-latest.args            |  8 ++--
 .../disk-shared.x86_64-latest.args            | 14 +++----
 .../disk-slices.x86_64-latest.args            | 14 +++----
 .../disk-snapshot.x86_64-latest.args          | 10 ++---
 .../disk-source-pool-mode.x86_64-latest.args  | 12 +++---
 .../disk-source-pool.x86_64-latest.args       | 14 +++----
 .../disk-transient.x86_64-latest.args         |  6 +--
 ...sk-usb-device-removable.x86_64-latest.args |  8 ++--
 .../disk-usb-device.x86_64-latest.args        |  8 ++--
 .../disk-vhostuser.x86_64-latest.args         |  8 ++--
 .../disk-virtio-queues.x86_64-latest.args     |  8 ++--
 ...irtio-scsi-reservations.x86_64-latest.args | 10 ++---
 .../disk-virtio.x86_64-latest.args            | 10 ++---
 .../encrypted-disk-usage.x86_64-latest.args   |  6 +--
 .../encrypted-disk.x86_64-latest.args         |  6 +--
 .../eoi-disabled.x86_64-latest.args           |  4 +-
 .../eoi-enabled.x86_64-latest.args            |  4 +-
 .../event_idx.x86_64-latest.args              | 12 +++---
 .../fips-enabled.x86_64-latest.args           |  6 +--
 .../floppy-drive-fat.x86_64-latest.args       |  6 +--
 .../qemuxml2argvdata/fs9p.x86_64-latest.args  |  6 +--
 .../genid-auto.x86_64-latest.args             |  4 +-
 .../qemuxml2argvdata/genid.x86_64-latest.args |  4 +-
 ...egl-headless-rendernode.x86_64-latest.args |  6 +--
 .../graphics-egl-headless.x86_64-latest.args  |  6 +--
 ...pice-gl-auto-rendernode.x86_64-latest.args |  6 +--
 ...ics-vnc-auto-socket-cfg.x86_64-latest.args |  6 +--
 ...raphics-vnc-auto-socket.x86_64-latest.args |  4 +-
 ...aphics-vnc-egl-headless.x86_64-latest.args |  6 +--
 ...hics-vnc-no-listen-attr.x86_64-latest.args |  6 +--
 .../graphics-vnc-none.x86_64-latest.args      |  4 +-
 .../graphics-vnc-policy.x86_64-latest.args    |  6 +--
 .../graphics-vnc-power.x86_64-latest.args     |  6 +--
 ...remove-generated-socket.x86_64-latest.args |  6 +--
 .../graphics-vnc-sasl.x86_64-latest.args      |  6 +--
 ...-vnc-socket-new-cmdline.x86_64-latest.args |  4 +-
 .../graphics-vnc-socket.x86_64-latest.args    |  4 +-
 ...graphics-vnc-tls-secret.x86_64-latest.args |  4 +-
 .../graphics-vnc-tls.x86_64-latest.args       |  4 +-
 .../graphics-vnc-websocket.x86_64-latest.args |  4 +-
 .../graphics-vnc.x86_64-latest.args           |  6 +--
 ...tdev-mdev-display-ramfb.x86_64-latest.args |  6 +--
 ...play-spice-egl-headless.x86_64-latest.args |  6 +--
 ...ev-display-spice-opengl.x86_64-latest.args |  6 +--
 ...isplay-vnc-egl-headless.x86_64-latest.args |  6 +--
 ...ostdev-mdev-display-vnc.x86_64-latest.args |  6 +--
 .../hostdev-scsi-lsi.x86_64-latest.args       | 20 ++++-----
 ...ostdev-scsi-virtio-scsi.x86_64-latest.args | 22 +++++-----
 .../hugepages-memaccess3.x86_64-latest.args   |  2 +-
 .../hugepages-nvdimm.x86_64-latest.args       |  4 +-
 .../hyperv-off.x86_64-latest.args             |  4 +-
 .../hyperv-panic.x86_64-latest.args           |  2 +-
 .../hyperv-stimer-direct.x86_64-latest.args   |  2 +-
 .../hyperv.x86_64-latest.args                 |  2 +-
 .../input-linux.x86_64-latest.args            |  4 +-
 .../intel-iommu-aw-bits.x86_64-latest.args    |  2 +-
 ...ntel-iommu-caching-mode.x86_64-latest.args |  2 +-
 ...ntel-iommu-device-iotlb.x86_64-latest.args |  2 +-
 .../intel-iommu-eim.x86_64-latest.args        |  2 +-
 .../intel-iommu.x86_64-latest.args            |  2 +-
 ...threads-virtio-scsi-pci.x86_64-latest.args | 10 ++---
 .../kvmclock+eoi-disabled.x86_64-latest.args  |  4 +-
 ...luks-disks-source-qcow2.x86_64-latest.args | 16 +++----
 .../luks-disks-source.x86_64-latest.args      | 14 +++----
 .../luks-disks.x86_64-latest.args             |  8 ++--
 ...memory-default-hugepage.x86_64-latest.args |  4 +-
 .../memfd-memory-numa.x86_64-latest.args      |  6 +--
 ...y-hotplug-nvdimm-access.x86_64-latest.args |  8 ++--
 ...ry-hotplug-nvdimm-align.x86_64-latest.args |  8 ++--
 ...ry-hotplug-nvdimm-label.x86_64-latest.args |  8 ++--
 ...ory-hotplug-nvdimm-pmem.x86_64-latest.args |  8 ++--
 ...hotplug-nvdimm-readonly.x86_64-latest.args |  8 ++--
 .../memory-hotplug-nvdimm.x86_64-latest.args  |  8 ++--
 ...mory-hotplug-virtio-mem.x86_64-latest.args | 10 ++---
 ...ory-hotplug-virtio-pmem.x86_64-latest.args |  8 ++--
 .../misc-no-reboot.x86_64-latest.args         |  4 +-
 .../mlock-off.x86_64-latest.args              |  2 +-
 .../mlock-on.x86_64-latest.args               |  2 +-
 .../net-vdpa.x86_64-latest.args               |  4 +-
 .../net-vhostuser.x86_64-latest.args          |  8 ++--
 .../numatune-hmat.x86_64-latest.args          |  4 +-
 ...emnode-restrictive-mode.x86_64-latest.args |  4 +-
 .../numatune-memnode.x86_64-latest.args       |  4 +-
 .../os-firmware-bios.x86_64-latest.args       | 16 +++----
 ...re-efi-no-enrolled-keys.x86_64-latest.args |  6 +--
 ...os-firmware-efi-secboot.x86_64-latest.args | 16 +++----
 .../os-firmware-efi.x86_64-latest.args        | 16 +++----
 .../panic-double.x86_64-latest.args           |  4 +-
 .../panic-no-address.x86_64-latest.args       |  8 ++--
 .../qemuxml2argvdata/panic.x86_64-latest.args |  8 ++--
 .../parallel-unix-chardev.x86_64-latest.args  |  8 ++--
 ...-hotplug-bridge-disable.x86_64-latest.args |  4 +-
 ...i-hotplug-bridge-enable.x86_64-latest.args |  4 +-
 ...pi-root-hotplug-disable.x86_64-latest.args |  4 +-
 ...cpi-root-hotplug-enable.x86_64-latest.args |  4 +-
 ...cie-root-port-nohotplug.x86_64-latest.args | 18 ++++----
 .../pv-spinlock-disabled.x86_64-latest.args   |  4 +-
 .../pv-spinlock-enabled.x86_64-latest.args    |  4 +-
 ...-hotplug-bridge-disable.x86_64-latest.args | 10 ++---
 ...i-hotplug-bridge-enable.x86_64-latest.args | 10 ++---
 .../qemu-ns.x86_64-latest.args                |  6 +--
 .../serial-unix-chardev.x86_64-latest.args    |  8 ++--
 ...rtcard-passthrough-unix.x86_64-latest.args |  8 ++--
 .../tpm-emulator-tpm2-enc.x86_64-latest.args  |  6 +--
 ...pm-emulator-tpm2-pstate.x86_64-latest.args |  6 +--
 .../tpm-emulator-tpm2.x86_64-latest.args      |  6 +--
 .../tpm-emulator.x86_64-latest.args           |  6 +--
 .../tpm-passthrough-crb.x86_64-latest.args    |  6 +--
 .../tpm-passthrough.x86_64-latest.args        |  6 +--
 .../tseg-explicit-size.x86_64-latest.args     | 10 ++---
 .../usb-redir-unix.x86_64-latest.args         | 14 +++----
 ...vhost-user-fs-fd-memory.x86_64-latest.args |  2 +-
 ...vhost-user-fs-hugepages.x86_64-latest.args | 12 +++---
 ...host-user-gpu-secondary.x86_64-latest.args | 10 ++---
 .../vhost-user-vga.x86_64-latest.args         |  8 ++--
 .../vhost-vsock-auto.x86_64-latest.args       |  6 +--
 .../vhost-vsock.x86_64-latest.args            |  6 +--
 ...eo-bochs-display-device.x86_64-latest.args |  8 ++--
 ...video-qxl-device-vram64.x86_64-latest.args |  6 +--
 ...o-qxl-sec-device-vram64.x86_64-latest.args |  8 ++--
 ...eo-ramfb-display-device.x86_64-latest.args |  8 ++--
 ...video-virtio-vga-gpu-gl.x86_64-latest.args |  8 ++--
 .../virtio-9p-createmode.x86_64-latest.args   | 14 +++----
 .../virtio-9p-multidevs.x86_64-latest.args    | 12 +++---
 .../virtio-lun.x86_64-latest.args             | 12 +++---
 ...virtio-non-transitional.x86_64-latest.args | 42 +++++++++----------
 ...-options-controller-ats.x86_64-latest.args | 12 +++---
 ...ptions-controller-iommu.x86_64-latest.args | 12 +++---
 ...tions-controller-packed.x86_64-latest.args | 12 +++---
 ...virtio-options-disk-ats.x86_64-latest.args |  8 ++--
 ...rtio-options-disk-iommu.x86_64-latest.args |  8 ++--
 ...tio-options-disk-packed.x86_64-latest.args |  8 ++--
 .../virtio-options-fs-ats.x86_64-latest.args  |  8 ++--
 ...virtio-options-fs-iommu.x86_64-latest.args |  8 ++--
 ...irtio-options-fs-packed.x86_64-latest.args |  8 ++--
 ...irtio-options-input-ats.x86_64-latest.args |  8 ++--
 ...tio-options-input-iommu.x86_64-latest.args |  8 ++--
 ...io-options-input-packed.x86_64-latest.args |  8 ++--
 ...-options-memballoon-ats.x86_64-latest.args |  4 +-
 ...loon-freepage-reporting.x86_64-latest.args |  4 +-
 ...ptions-memballoon-iommu.x86_64-latest.args |  4 +-
 ...tions-memballoon-packed.x86_64-latest.args |  4 +-
 .../virtio-options-net-ats.x86_64-latest.args |  8 ++--
 ...irtio-options-net-iommu.x86_64-latest.args |  8 ++--
 ...rtio-options-net-packed.x86_64-latest.args |  8 ++--
 .../virtio-options-rng-ats.x86_64-latest.args |  8 ++--
 ...irtio-options-rng-iommu.x86_64-latest.args |  8 ++--
 ...rtio-options-rng-packed.x86_64-latest.args |  8 ++--
 ...irtio-options-video-ats.x86_64-latest.args |  8 ++--
 ...tio-options-video-iommu.x86_64-latest.args |  8 ++--
 ...io-options-video-packed.x86_64-latest.args |  8 ++--
 .../virtio-options.x86_64-latest.args         | 28 ++++++-------
 .../virtio-rng-builtin.x86_64-latest.args     |  6 +--
 .../virtio-rng-egd-unix.x86_64-latest.args    |  6 +--
 .../virtio-transitional.x86_64-latest.args    | 26 ++++++------
 .../watchdog-device.x86_64-latest.args        |  8 ++--
 .../watchdog-dump.x86_64-latest.args          |  8 ++--
 .../watchdog-injectnmi.x86_64-latest.args     |  8 ++--
 .../watchdog.x86_64-latest.args               |  6 +--
 ...-default-cpu-kvm-pc-4.2.x86_64-latest.args |  6 +--
 ...default-cpu-kvm-q35-4.2.x86_64-latest.args | 14 +++----
 ...-default-cpu-tcg-pc-4.2.x86_64-latest.args |  6 +--
 ...default-cpu-tcg-q35-4.2.x86_64-latest.args | 14 +++----
 .../x86_64-pc-graphics.x86_64-latest.args     | 20 ++++-----
 .../x86_64-pc-headless.x86_64-latest.args     | 16 +++----
 .../x86_64-q35-graphics.x86_64-latest.args    | 34 +++++++--------
 .../x86_64-q35-headless.x86_64-latest.args    | 30 ++++++-------
 258 files changed, 1039 insertions(+), 1037 deletions(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 1043c4b1e6..4cdf22f5eb 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -1566,6 +1566,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = {
     { "chardev-add/arg-type/backend/+socket/data/reconnect", QEMU_CAPS_CHARDEV_RECONNECT },
     { "chardev-add/arg-type/backend/+file/data/logfile", QEMU_CAPS_CHARDEV_LOGFILE },
     { "chardev-add/arg-type/backend/+file/data/logappend", QEMU_CAPS_CHARDEV_FILE_APPEND },
+    { "device_add/$json-cli", QEMU_CAPS_DEVICE_JSON },
     { "human-monitor-command/$savevm-monitor-nodes", QEMU_CAPS_SAVEVM_MONITOR_NODES },
     { "migrate-set-parameters/arg-type/max-bandwidth", QEMU_CAPS_MIGRATION_PARAM_BANDWIDTH },
     { "migrate-set-parameters/arg-type/downtime-limit", QEMU_CAPS_MIGRATION_PARAM_DOWNTIME },
diff --git a/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml
index 56a613c767..3adced70cc 100644
--- a/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml
@@ -239,6 +239,7 @@
   <flag name='memory-backend-file.reserve'/>
   <flag name='piix4.acpi-root-pci-hotplug'/>
   <flag name='ich9.acpi-hotplug-bridge'/>
+  <flag name='device.json'/>
   <version>6001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100244</microcodeVersion>
diff --git a/tests/qemuxml2argvdata/audio-alsa-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-alsa-best.x86_64-latest.args
index 0fd84746db..46350b9c01 100644
--- a/tests/qemuxml2argvdata/audio-alsa-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-alsa-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=alsa,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.frequency=22050,out.channels=4,out.format=f32,in.dev=/dev/dsp0,out.dev=/dev/dsp1 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-alsa-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-alsa-full.x86_64-latest.args
index bb54751992..186cc0db0c 100644
--- a/tests/qemuxml2argvdata/audio-alsa-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-alsa-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=alsa,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.dev=/dev/dsp0,out.dev=/dev/dsp1 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-alsa-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-alsa-minimal.x86_64-latest.args
index d214149efe..905f4d6c52 100644
--- a/tests/qemuxml2argvdata/audio-alsa-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-alsa-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=alsa \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-coreaudio-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-coreaudio-best.x86_64-latest.args
index 3d8b6f33ae..b375409aed 100644
--- a/tests/qemuxml2argvdata/audio-coreaudio-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-coreaudio-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=coreaudio,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,out.buffer-count=42 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-coreaudio-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-coreaudio-full.x86_64-latest.args
index dcbd46df5b..dd1ef1a405 100644
--- a/tests/qemuxml2argvdata/audio-coreaudio-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-coreaudio-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=coreaudio,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.buffer-count=50,out.buffer-count=42 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-coreaudio-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-coreaudio-minimal.x86_64-latest.args
index 4ce32b8a65..7fa4539a18 100644
--- a/tests/qemuxml2argvdata/audio-coreaudio-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-coreaudio-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=coreaudio \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-default-nographics.x86_64-latest.args b/tests/qemuxml2argvdata/audio-default-nographics.x86_64-latest.args
index d214149efe..905f4d6c52 100644
--- a/tests/qemuxml2argvdata/audio-default-nographics.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-default-nographics.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=alsa \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-default-sdl.x86_64-latest.args b/tests/qemuxml2argvdata/audio-default-sdl.x86_64-latest.args
index 95c9537a30..3ecf1657f9 100644
--- a/tests/qemuxml2argvdata/audio-default-sdl.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-default-sdl.x86_64-latest.args
@@ -26,12 +26,12 @@ SDL_AUDIODRIVER=esd \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=sdl \
 -display sdl \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-default-spice.x86_64-latest.args b/tests/qemuxml2argvdata/audio-default-spice.x86_64-latest.args
index a462dbbed9..70b5b35091 100644
--- a/tests/qemuxml2argvdata/audio-default-spice.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-default-spice.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=spice \
 -spice port=0,seamless-migration=on \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-default-vnc.x86_64-latest.args b/tests/qemuxml2argvdata/audio-default-vnc.x86_64-latest.args
index 093bf51f67..b8ec56100e 100644
--- a/tests/qemuxml2argvdata/audio-default-vnc.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-default-vnc.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=alsa \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-file-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-file-best.x86_64-latest.args
index ff48527de6..8327031d4a 100644
--- a/tests/qemuxml2argvdata/audio-file-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-file-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=wav,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.frequency=22050,out.channels=4,out.format=f32,path=audio.wav \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-file-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-file-full.x86_64-latest.args
index de5b2569d4..ca6e579382 100644
--- a/tests/qemuxml2argvdata/audio-file-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-file-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=wav,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,path=audio.wav \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-file-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-file-minimal.x86_64-latest.args
index 3ae389e0cc..c06c8cf7ea 100644
--- a/tests/qemuxml2argvdata/audio-file-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-file-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=wav \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-jack-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-jack-full.x86_64-latest.args
index 6bdf5a9543..c77fd0ca5e 100644
--- a/tests/qemuxml2argvdata/audio-jack-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-jack-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=jack,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.server-name=fish,in.client-name=food,in.connect-ports=yum,out.server-name=fish,out.client-name=food,out.connect-ports=yum \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-jack-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-jack-minimal.x86_64-latest.args
index 50307617ca..3ddbfc967b 100644
--- a/tests/qemuxml2argvdata/audio-jack-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-jack-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=jack \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-many-backends.x86_64-latest.args b/tests/qemuxml2argvdata/audio-many-backends.x86_64-latest.args
index 090ea4c76b..4117eb9e7f 100644
--- a/tests/qemuxml2argvdata/audio-many-backends.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-many-backends.x86_64-latest.args
@@ -25,18 +25,18 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -audiodev id=audio2,driver=alsa \
 -audiodev id=audio3,driver=pa \
 -vnc 127.0.0.1:0,audiodev=audio2 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
--device AC97,id=sound0,audiodev=audio1,bus=pci.0,addr=0x3 \
--device intel-hda,id=sound1,bus=pci.0,addr=0x4 \
--device hda-duplex,id=sound1-codec0,bus=sound1.0,cad=0,audiodev=audio2 \
--device ES1370,id=sound2,audiodev=audio3,bus=pci.0,addr=0x5 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"AC97","id":"sound0","audiodev":"audio1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"intel-hda","id":"sound1","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"hda-duplex","id":"sound1-codec0","bus":"sound1.0","cad":0,"audiodev":"audio2"}' \
+-device '{"driver":"ES1370","id":"sound2","audiodev":"audio3","bus":"pci.0","addr":"0x5"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-none-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-none-best.x86_64-latest.args
index feaa72ddbd..4c26196c34 100644
--- a/tests/qemuxml2argvdata/audio-none-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-none-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.frequency=22050,out.channels=4,out.format=f32 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-none-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-none-full.x86_64-latest.args
index b9a1838505..9296201865 100644
--- a/tests/qemuxml2argvdata/audio-none-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-none-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-none-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-none-minimal.x86_64-latest.args
index f70fe75ec1..b85e774e50 100644
--- a/tests/qemuxml2argvdata/audio-none-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-none-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-oss-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-oss-best.x86_64-latest.args
index b66fa68bc8..b20f939d05 100644
--- a/tests/qemuxml2argvdata/audio-oss-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-oss-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=oss,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.frequency=22050,out.channels=4,out.format=f32,in.dev=/dev/dsp0,in.buffer-count=30,in.try-poll=on,out.dev=/dev/dsp1,out.buffer-count=30,out.try-poll=off \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-oss-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-oss-full.x86_64-latest.args
index 2af073140b..2c1812a339 100644
--- a/tests/qemuxml2argvdata/audio-oss-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-oss-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=oss,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.dev=/dev/dsp0,in.buffer-count=50,in.try-poll=on,out.dev=/dev/dsp1,out.buffer-count=30,out.try-poll=off,try-mmap=on,exclusive=on,dsp-policy=3 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-oss-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-oss-minimal.x86_64-latest.args
index b9f3c6e7e0..a7bb979766 100644
--- a/tests/qemuxml2argvdata/audio-oss-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-oss-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=oss \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-pulseaudio-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-pulseaudio-best.x86_64-latest.args
index eabff7302f..f8250a3922 100644
--- a/tests/qemuxml2argvdata/audio-pulseaudio-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-pulseaudio-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=pa,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=200,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.name=fish,out.name=fish,server=acme.example.org \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-pulseaudio-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-pulseaudio-full.x86_64-latest.args
index 1008e2a4a9..3a753e1b1b 100644
--- a/tests/qemuxml2argvdata/audio-pulseaudio-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-pulseaudio-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=pa,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.name=fish,in.stream-name=food,in.latency=100,out.name=fish,out.stream-name=food,out.latency=200,server=acme.example.org \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-pulseaudio-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-pulseaudio-minimal.x86_64-latest.args
index 9a34f78c00..1919e51148 100644
--- a/tests/qemuxml2argvdata/audio-pulseaudio-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-pulseaudio-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=pa \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-sdl-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-sdl-best.x86_64-latest.args
index 4c8d46598a..fdadf1451e 100644
--- a/tests/qemuxml2argvdata/audio-sdl-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-sdl-best.x86_64-latest.args
@@ -27,10 +27,10 @@ SDL_AUDIODRIVER=pulseaudio \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=sdl,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-sdl-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-sdl-full.x86_64-latest.args
index f635127bfa..ee14fb9ad6 100644
--- a/tests/qemuxml2argvdata/audio-sdl-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-sdl-full.x86_64-latest.args
@@ -27,10 +27,10 @@ SDL_AUDIODRIVER=pulseaudio \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=sdl,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32,in.buffer-count=40,out.buffer-count=50 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-sdl-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-sdl-minimal.x86_64-latest.args
index 0bae72d407..2582248400 100644
--- a/tests/qemuxml2argvdata/audio-sdl-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-sdl-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=sdl \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-spice-best.x86_64-latest.args b/tests/qemuxml2argvdata/audio-spice-best.x86_64-latest.args
index 4b1d4a2ece..76a655c645 100644
--- a/tests/qemuxml2argvdata/audio-spice-best.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-spice-best.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=spice,timer-period=50,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.frequency=22050,out.channels=4,out.format=f32 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-spice-full.x86_64-latest.args b/tests/qemuxml2argvdata/audio-spice-full.x86_64-latest.args
index 13447036fb..e961ad0fc9 100644
--- a/tests/qemuxml2argvdata/audio-spice-full.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-spice-full.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=spice,in.mixing-engine=on,in.fixed-settings=on,in.voices=1,in.buffer-length=100,in.frequency=44100,in.channels=2,in.format=s16,out.mixing-engine=on,out.fixed-settings=on,out.voices=2,out.buffer-length=200,out.frequency=22050,out.channels=4,out.format=f32 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/audio-spice-minimal.x86_64-latest.args b/tests/qemuxml2argvdata/audio-spice-minimal.x86_64-latest.args
index dd73e11023..615297edd6 100644
--- a/tests/qemuxml2argvdata/audio-spice-minimal.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/audio-spice-minimal.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=spice \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/blkdeviotune-group-num.x86_64-latest.args b/tests/qemuxml2argvdata/blkdeviotune-group-num.x86_64-latest.args
index 2c508a257a..bf817f8f05 100644
--- a/tests/qemuxml2argvdata/blkdeviotune-group-num.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/blkdeviotune-group-num.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-1-format","id":"ide0-0-1","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/blkdeviotune-max-length.x86_64-latest.args b/tests/qemuxml2argvdata/blkdeviotune-max-length.x86_64-latest.args
index 2c508a257a..bf817f8f05 100644
--- a/tests/qemuxml2argvdata/blkdeviotune-max-length.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/blkdeviotune-max-length.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-1-format","id":"ide0-0-1","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/blkdeviotune-max.x86_64-latest.args b/tests/qemuxml2argvdata/blkdeviotune-max.x86_64-latest.args
index 2c508a257a..bf817f8f05 100644
--- a/tests/qemuxml2argvdata/blkdeviotune-max.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/blkdeviotune-max.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-1-format","id":"ide0-0-1","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/channel-unix-guestfwd.x86_64-latest.args b/tests/qemuxml2argvdata/channel-unix-guestfwd.x86_64-latest.args
index 5405419ef5..6a9e00a4a3 100644
--- a/tests/qemuxml2argvdata/channel-unix-guestfwd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/channel-unix-guestfwd.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
 -netdev user,guestfwd=tcp:10.0.2.1:4600-chardev:charchannel0,id=channel0 \
 -chardev socket,id=charchannel1,path=/tmp/guestfwd-connect.socket \
 -netdev user,guestfwd=tcp:10.0.2.1:4601-chardev:charchannel1,id=channel1 \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/console-virtio-unix.x86_64-latest.args b/tests/qemuxml2argvdata/console-virtio-unix.x86_64-latest.args
index 8fbbebc175..6f5e7d0690 100644
--- a/tests/qemuxml2argvdata/console-virtio-unix.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/console-virtio-unix.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x2"}' \
 -chardev socket,id=charconsole0,fd=1729,server=on,wait=off \
--device virtconsole,chardev=charconsole0,id=console0 \
+-device '{"driver":"virtconsole","chardev":"charconsole0","id":"console0"}' \
 -chardev socket,id=charconsole1,path=/tmp/connect.socket \
--device virtconsole,chardev=charconsole1,id=console1 \
+-device '{"driver":"virtconsole","chardev":"charconsole1","id":"console1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/controller-virtio-scsi.x86_64-latest.args b/tests/qemuxml2argvdata/controller-virtio-scsi.x86_64-latest.args
index 0a38fbcc38..5a277bccbe 100644
--- a/tests/qemuxml2argvdata/controller-virtio-scsi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/controller-virtio-scsi.x86_64-latest.args
@@ -26,28 +26,28 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
--device virtio-scsi-pci,id=scsi1,num_queues=8,bus=pci.0,addr=0x3 \
--device virtio-scsi-pci,id=scsi2,cmd_per_lun=50,bus=pci.0,addr=0x4 \
--device virtio-scsi-pci,id=scsi3,max_sectors=512,bus=pci.0,addr=0x5 \
--device virtio-scsi-pci,id=scsi4,ioeventfd=on,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi1","num_queues":8,"bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi2","cmd_per_lun":50,"bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi3","max_sectors":512,"bus":"pci.0","addr":"0x5"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi4","ioeventfd":true,"bus":"pci.0","addr":"0x6"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"raw","file":"libvirt-5-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-5-format,id=scsi0-0-0-0,bootindex=1 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","drive":"libvirt-5-format","id":"scsi0-0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi1-0-0-0,drive=libvirt-4-format,id=scsi1-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi1.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi1-0-0-0","drive":"libvirt-4-format","id":"scsi1-0-0-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest3","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device scsi-hd,bus=scsi2.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi2-0-0-0,drive=libvirt-3-format,id=scsi2-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi2.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi2-0-0-0","drive":"libvirt-3-format","id":"scsi2-0-0-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest4","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-hd,bus=scsi3.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi3-0-0-0,drive=libvirt-2-format,id=scsi3-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi3.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi3-0-0-0","drive":"libvirt-2-format","id":"scsi3-0-0-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest5","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi4.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi4-0-0-0,drive=libvirt-1-format,id=scsi4-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi4.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi4-0-0-0","drive":"libvirt-1-format","id":"scsi4-0-0-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x7"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/cpu-Icelake-Server-pconfig.x86_64-latest.args b/tests/qemuxml2argvdata/cpu-Icelake-Server-pconfig.x86_64-latest.args
index a92dc2f41e..27b5c2c2d0 100644
--- a/tests/qemuxml2argvdata/cpu-Icelake-Server-pconfig.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/cpu-Icelake-Server-pconfig.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/cpu-host-model.x86_64-latest.args b/tests/qemuxml2argvdata/cpu-host-model.x86_64-latest.args
index ee31f01bf7..95b5e4a50b 100644
--- a/tests/qemuxml2argvdata/cpu-host-model.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/cpu-host-model.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x0 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/cpu-translation.x86_64-latest.args b/tests/qemuxml2argvdata/cpu-translation.x86_64-latest.args
index bb6b5c9986..c24d8ec201 100644
--- a/tests/qemuxml2argvdata/cpu-translation.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/cpu-translation.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/cputune-cpuset-big-id.x86_64-latest.args b/tests/qemuxml2argvdata/cputune-cpuset-big-id.x86_64-latest.args
index 7ae87f6616..ad189c76fa 100644
--- a/tests/qemuxml2argvdata/cputune-cpuset-big-id.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/cputune-cpuset-big-id.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/devices-acpi-index.x86_64-latest.args b/tests/qemuxml2argvdata/devices-acpi-index.x86_64-latest.args
index a17130c080..9fecc94299 100644
--- a/tests/qemuxml2argvdata/devices-acpi-index.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/devices-acpi-index.x86_64-latest.args
@@ -25,21 +25,21 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fdr-br/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/test.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,acpi-index=1,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","acpi-index":1,"drive":"libvirt-2-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/test1.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,acpi-index=42,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","acpi-index":42,"drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:11:22:33:44:55,bus=pci.0,addr=0x5,acpi-index=100 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"00:11:22:33:44:55","bus":"pci.0","addr":"0x5","acpi-index":100}' \
 -netdev user,id=hostnet1 \
--device virtio-net-pci,netdev=hostnet1,id=net1,mac=00:11:22:33:44:55,bus=pci.0,addr=0x7,acpi-index=200 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet1","id":"net1","mac":"00:11:22:33:44:55","bus":"pci.0","addr":"0x7","acpi-index":200}' \
 -netdev user,id=hostnet2 \
--device virtio-net-pci,netdev=hostnet2,id=net2,mac=00:11:22:33:44:55,bus=pci.0,addr=0x8,acpi-index=300 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet2","id":"net2","mac":"00:11:22:33:44:55","bus":"pci.0","addr":"0x8","acpi-index":300}' \
 -audiodev id=audio1,driver=none \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2,acpi-index=1729 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2","acpi-index":1729}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-aio-io_uring.x86_64-latest.args b/tests/qemuxml2argvdata/disk-aio-io_uring.x86_64-latest.args
index 199cc0cad4..8c6943bc93 100644
--- a/tests/qemuxml2argvdata/disk-aio-io_uring.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-aio-io_uring.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","aio":"io_uring","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x9,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x9","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-aio.x86_64-latest.args b/tests/qemuxml2argvdata/disk-aio.x86_64-latest.args
index 1c3084ce95..3d291c49f9 100644
--- a/tests/qemuxml2argvdata/disk-aio.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-aio.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","aio":"native","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","aio":"threads","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-backing-chains-noindex.x86_64-latest.args b/tests/qemuxml2argvdata/disk-backing-chains-noindex.x86_64-latest.args
index 33785a29d5..a71b7b6e97 100644
--- a/tests/qemuxml2argvdata/disk-backing-chains-noindex.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-backing-chains-noindex.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/missing-backing-store.qcow","node-name":"libvirt-25-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-25-format","read-only":true,"driver":"qcow2","file":"libvirt-25-storage"}' \
 -blockdev '{"driver":"gluster","volume":"Volume2","path":"Image","server":[{"type":"unix","path":"/path/to/sock"}],"debug":4,"node-name":"libvirt-24-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-24-format","read-only":false,"driver":"qcow2","file":"libvirt-24-storage","backing":"libvirt-25-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-24-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-24-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/Fedora-17-x86_64-Live-KDE.iso","node-name":"libvirt-23-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-23-format","read-only":true,"driver":"raw","file":"libvirt-23-storage"}' \
 -blockdev '{"driver":"file","filename":"/tmp/image5.qcow","node-name":"libvirt-22-storage","auto-read-only":true,"discard":"unmap"}' \
@@ -46,19 +46,19 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -blockdev '{"node-name":"libvirt-18-format","read-only":true,"driver":"qcow2","file":"libvirt-18-storage","backing":"libvirt-19-format"}' \
 -blockdev '{"driver":"nbd","server":{"type":"unix","path":"/var/run/nbdsock"},"export":"bar","node-name":"libvirt-17-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-17-format","read-only":false,"driver":"qcow2","file":"libvirt-17-storage","backing":"libvirt-18-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-17-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-17-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"gluster","volume":"Volume1","path":"Image","server":[{"type":"inet","host":"example.org","port":"6000"}],"debug":4,"node-name":"libvirt-16-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-16-format","read-only":false,"driver":"raw","file":"libvirt-16-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-16-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-16-format","id":"virtio-disk2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/image.qcow","node-name":"libvirt-15-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-15-format","read-only":true,"driver":"qcow2","file":"libvirt-15-storage","backing":null}' \
 -object '{"qom-type":"secret","id":"libvirt-14-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"user":"myname","auth-client-required":["cephx","none"],"key-secret":"libvirt-14-storage-auth-secret0","node-name":"libvirt-14-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-14-format","read-only":false,"driver":"qcow2","file":"libvirt-14-storage","backing":"libvirt-15-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-14-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-14-format","id":"virtio-disk3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest11","node-name":"libvirt-13-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-13-format","read-only":false,"driver":"qcow2","file":"libvirt-13-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-13-format,id=virtio-disk4 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-13-format","id":"virtio-disk4"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.qcow2","node-name":"libvirt-12-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-12-format","read-only":true,"driver":"qcow2","file":"libvirt-12-storage","backing":null}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.1483536402","node-name":"libvirt-11-storage","auto-read-only":true,"discard":"unmap"}' \
@@ -83,8 +83,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"qcow2","file":"libvirt-2-storage","backing":"libvirt-3-format"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/rhel7.1484071880","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":"libvirt-2-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk5 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk5"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x8 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x8"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-blockio.x86_64-latest.args b/tests/qemuxml2argvdata/disk-blockio.x86_64-latest.args
index aae77afd82..20c34e12a8 100644
--- a/tests/qemuxml2argvdata/disk-blockio.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-blockio.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-2-format","id":"ide0-0-1"}' \
 -blockdev '{"driver":"file","filename":"/tmp/idedisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=2,drive=libvirt-1-format,id=ide0-0-2,bootindex=1,logical_block_size=512,physical_block_size=512 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":2,"drive":"libvirt-1-format","id":"ide0-0-2","bootindex":1,"logical_block_size":512,"physical_block_size":512}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-boot-cdrom.x86_64-latest.args b/tests/qemuxml2argvdata/disk-boot-cdrom.x86_64-latest.args
index 64238ed75f..ec23a0be13 100644
--- a/tests/qemuxml2argvdata/disk-boot-cdrom.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-boot-cdrom.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-boot-disk.x86_64-latest.args b/tests/qemuxml2argvdata/disk-boot-disk.x86_64-latest.args
index f5f2740023..07f43e5762 100644
--- a/tests/qemuxml2argvdata/disk-boot-disk.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-boot-disk.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cache.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cache.x86_64-latest.args
index 7c78e04f77..59c4f7932a 100644
--- a/tests/qemuxml2argvdata/disk-cache.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cache.x86_64-latest.args
@@ -26,23 +26,23 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device lsi,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"lsi","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-5-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"qcow2","file":"libvirt-5-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-5-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-5-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-4-storage","cache":{"direct":false,"no-flush":true},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"cache":{"direct":false,"no-flush":true},"driver":"qcow2","file":"libvirt-4-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-4-format,id=ide0-0-1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-4-format","id":"ide0-0-1","write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-3-storage"}' \
--device scsi-hd,bus=scsi0.0,scsi-id=0,device_id=drive-scsi0-0-0,drive=libvirt-3-format,id=scsi0-0-0,write-cache=on \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","scsi-id":0,"device_id":"drive-scsi0-0-0","drive":"libvirt-3-format","id":"scsi0-0-0","write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/disk/by-path/ip-192.168.44.1:3260-iscsi-iqn.2011-02.lan.hdserver:hydrar-desktop.win7vm-lun-0","node-name":"libvirt-2-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":false,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-2-format,id=virtio-disk0,write-cache=off \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-2-format","id":"virtio-disk0","write-cache":"off"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device usb-storage,bus=usb.0,port=1,drive=libvirt-1-format,id=usb-disk1,removable=off,write-cache=off \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-1-format","id":"usb-disk1","removable":false,"write-cache":"off"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cdrom-bus-other.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cdrom-bus-other.x86_64-latest.args
index 2167332ac9..f14011e68d 100644
--- a/tests/qemuxml2argvdata/disk-cdrom-bus-other.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cdrom-bus-other.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/root/boot.iso","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device usb-storage,bus=usb.0,port=1,drive=libvirt-2-format,id=usb-disk0,removable=off \
--device usb-storage,bus=usb.0,port=2,id=usb-disk1,removable=off \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-2-format","id":"usb-disk0","removable":false}' \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"2","id":"usb-disk1","removable":false}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cdrom-empty-network-invalid.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cdrom-empty-network-invalid.x86_64-latest.args
index 9457414a09..f488cdf5f3 100644
--- a/tests/qemuxml2argvdata/disk-cdrom-empty-network-invalid.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cdrom-empty-network-invalid.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device ide-cd,bus=ide.1,unit=1,id=ide0-1-1 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":1,"id":"ide0-1-1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cdrom-network.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cdrom-network.x86_64-latest.args
index 5c81dacb77..d898d6d648 100644
--- a/tests/qemuxml2argvdata/disk-cdrom-network.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cdrom-network.x86_64-latest.args
@@ -25,17 +25,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"ftp","url":"ftp://host.name:21/url/path/file.iso","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"ftps","url":"ftps://host.name:990/url/path/file.iso","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-2-format","id":"ide0-0-1"}' \
 -blockdev '{"driver":"https","url":"https://host.name:443/url/path/file.iso?test=val","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cdrom-tray.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cdrom-tray.x86_64-latest.args
index 4b8016c0cb..a6709016ac 100644
--- a/tests/qemuxml2argvdata/disk-cdrom-tray.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cdrom-tray.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"qcow2","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-3-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-3-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-2-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-2-format","id":"ide0-1-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/cdrom.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=1,drive=libvirt-1-format,id=ide0-1-1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":1,"drive":"libvirt-1-format","id":"ide0-1-1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-cdrom.x86_64-latest.args b/tests/qemuxml2argvdata/disk-cdrom.x86_64-latest.args
index 1ece828c51..7352a42059 100644
--- a/tests/qemuxml2argvdata/disk-cdrom.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-cdrom.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_cdrom","filename":"/dev/cdrom","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":true,"driver":"raw","file":"libvirt-4-storage"}' \
--device ide-cd,bus=ide.0,unit=0,drive=libvirt-4-format,id=ide0-0-0 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":0,"drive":"libvirt-4-format","id":"ide0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/root/boot.iso","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-3-format,id=ide0-0-1 \
--device ide-cd,bus=ide.1,unit=0,id=ide0-1-0,write-cache=on \
--device ide-cd,bus=ide.1,unit=1,id=ide0-1-1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-3-format","id":"ide0-0-1"}' \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"id":"ide0-1-0","write-cache":"on"}' \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":1,"id":"ide0-1-1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-copy_on_read.x86_64-latest.args b/tests/qemuxml2argvdata/disk-copy_on_read.x86_64-latest.args
index 690d4f3ea1..12755d9a9b 100644
--- a/tests/qemuxml2argvdata/disk-copy_on_read.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-copy_on_read.x86_64-latest.args
@@ -26,18 +26,18 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage"}' \
 -blockdev '{"driver":"copy-on-read","node-name":"libvirt-CoR-vda","file":"libvirt-2-format","discard":"unmap"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-CoR-vda,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-CoR-vda","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,tx=bh,netdev=hostnet0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","tx":"bh","netdev":"hostnet0","id":"net0","mac":"52:54:00:e5:48:58","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-detect-zeroes.x86_64-latest.args b/tests/qemuxml2argvdata/disk-detect-zeroes.x86_64-latest.args
index 5faaa20754..7f63bd536f 100644
--- a/tests/qemuxml2argvdata/disk-detect-zeroes.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-detect-zeroes.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"discard":"unmap","detect-zeroes":"unmap","driver":"qcow2","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"discard":"ignore","detect-zeroes":"on","driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-discard.x86_64-latest.args b/tests/qemuxml2argvdata/disk-discard.x86_64-latest.args
index 4b26d68065..0f762b9edd 100644
--- a/tests/qemuxml2argvdata/disk-discard.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-discard.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"discard":"unmap","driver":"qcow2","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"discard":"ignore","driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-error-policy.x86_64-latest.args b/tests/qemuxml2argvdata/disk-error-policy.x86_64-latest.args
index b686fe1a27..6fc2250ca5 100644
--- a/tests/qemuxml2argvdata/disk-error-policy.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-error-policy.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1,write-cache=on,werror=stop,rerror=stop \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1,"write-cache":"on","werror":"stop","rerror":"stop"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1,write-cache=on,werror=enospc \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-2-format","id":"ide0-0-1","write-cache":"on","werror":"enospc"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest3","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,write-cache=on,werror=report,rerror=ignore \
+-device '{"driver":"ide-hd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","write-cache":"on","werror":"report","rerror":"ignore"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-floppy-q35-2_11.x86_64-latest.args b/tests/qemuxml2argvdata/disk-floppy-q35-2_11.x86_64-latest.args
index ca01a34f58..3f99c56a87 100644
--- a/tests/qemuxml2argvdata/disk-floppy-q35-2_11.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-floppy-q35-2_11.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
--device isa-fdc,bootindexA=1 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"isa-fdc","bootindexA":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/firmware.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device floppy,unit=0,drive=libvirt-2-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-2-format","id":"fdc0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device floppy,unit=1,drive=libvirt-1-format,id=fdc0-0-1 \
+-device '{"driver":"floppy","unit":1,"drive":"libvirt-1-format","id":"fdc0-0-1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-floppy-q35-2_9.x86_64-latest.args b/tests/qemuxml2argvdata/disk-floppy-q35-2_9.x86_64-latest.args
index 1bb3851b2a..21a990305b 100644
--- a/tests/qemuxml2argvdata/disk-floppy-q35-2_9.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-floppy-q35-2_9.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
--device isa-fdc,bootindexA=1 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"isa-fdc","bootindexA":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/firmware.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device floppy,unit=0,drive=libvirt-2-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-2-format","id":"fdc0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device floppy,unit=1,drive=libvirt-1-format,id=fdc0-0-1 \
+-device '{"driver":"floppy","unit":1,"drive":"libvirt-1-format","id":"fdc0-0-1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-floppy-tray.x86_64-latest.args b/tests/qemuxml2argvdata/disk-floppy-tray.x86_64-latest.args
index 17166a1e8b..f1d647e55e 100644
--- a/tests/qemuxml2argvdata/disk-floppy-tray.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-floppy-tray.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/fd0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device floppy,unit=0,drive=libvirt-2-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-2-format","id":"fdc0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/firmware.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device floppy,unit=1,drive=libvirt-1-format,id=fdc0-0-1 \
+-device '{"driver":"floppy","unit":1,"drive":"libvirt-1-format","id":"fdc0-0-1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-floppy.x86_64-latest.args b/tests/qemuxml2argvdata/disk-floppy.x86_64-latest.args
index 5e0dea7f1e..3992169f54 100644
--- a/tests/qemuxml2argvdata/disk-floppy.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-floppy.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/fd0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device floppy,unit=0,drive=libvirt-2-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-2-format","id":"fdc0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/firmware.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device floppy,unit=1,drive=libvirt-1-format,id=fdc0-0-1 \
+-device '{"driver":"floppy","unit":1,"drive":"libvirt-1-format","id":"fdc0-0-1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-fmt-qcow.x86_64-latest.args b/tests/qemuxml2argvdata/disk-fmt-qcow.x86_64-latest.args
index afdfc94c27..c3b1303031 100644
--- a/tests/qemuxml2argvdata/disk-fmt-qcow.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-fmt-qcow.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-geometry.x86_64-latest.args b/tests/qemuxml2argvdata/disk-geometry.x86_64-latest.args
index 84ecde34c1..f75bc09249 100644
--- a/tests/qemuxml2argvdata/disk-geometry.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-geometry.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1,cyls=16383,heads=16,secs=63,bios-chs-trans=lba \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1,"cyls":16383,"heads":16,"secs":63,"bios-chs-trans":"lba"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-ide-split.x86_64-latest.args b/tests/qemuxml2argvdata/disk-ide-split.x86_64-latest.args
index 3f139fd340..0fe9d9e71f 100644
--- a/tests/qemuxml2argvdata/disk-ide-split.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-ide-split.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-2-format","id":"ide0-0-1"}' \
 -blockdev '{"driver":"file","filename":"/tmp/idedisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=2,drive=libvirt-1-format,id=ide0-0-2,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":2,"drive":"libvirt-1-format","id":"ide0-0-2","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-ide-wwn.x86_64-latest.args b/tests/qemuxml2argvdata/disk-ide-wwn.x86_64-latest.args
index 8560754c24..82143b4853 100644
--- a/tests/qemuxml2argvdata/disk-ide-wwn.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-ide-wwn.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1,bootindex=1,wwn=5764824127192592813,serial=WD-WMAP9A966149 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-1-format","id":"ide0-0-1","bootindex":1,"wwn":5764824127192592813,"serial":"WD-WMAP9A966149"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-ioeventfd.x86_64-latest.args b/tests/qemuxml2argvdata/disk-ioeventfd.x86_64-latest.args
index 136bf314d9..000a361b1c 100644
--- a/tests/qemuxml2argvdata/disk-ioeventfd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-ioeventfd.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,ioeventfd=on,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","ioeventfd":true,"bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,tx=bh,ioeventfd=off,netdev=hostnet0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","tx":"bh","ioeventfd":false,"netdev":"hostnet0","id":"net0","mac":"52:54:00:e5:48:58","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-metadata-cache.x86_64-latest.args b/tests/qemuxml2argvdata/disk-metadata-cache.x86_64-latest.args
index 1c9bd754c7..59201284e6 100644
--- a/tests/qemuxml2argvdata/disk-metadata-cache.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-metadata-cache.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/QEMUGuest1.img","node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","cache-size":12345,"file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"file","filename":"/tmp/backing-store.qcow","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","cache-size":1048576,"file":"libvirt-2-storage","backing":null}' \
 -blockdev '{"driver":"file","filename":"/tmp/QEMUGuest2.img","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage","backing":"libvirt-2-format"}' \
--device ide-hd,bus=ide.0,unit=1,drive=libvirt-1-format,id=ide0-0-1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-1-format","id":"ide0-0-1","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-gluster.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-gluster.x86_64-latest.args
index 49552d193c..a54d3e2e38 100644
--- a/tests/qemuxml2argvdata/disk-network-gluster.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-gluster.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"gluster","volume":"Volume1","path":"Image","server":[{"type":"inet","host":"example.org","port":"6000"}],"debug":4,"node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-3-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-3-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"gluster","volume":"Volume2","path":"Image","server":[{"type":"unix","path":"/path/to/sock"}],"debug":4,"node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-2-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-2-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"gluster","volume":"Volume3","path":"Image.qcow2","server":[{"type":"inet","host":"example.org","port":"6000"},{"type":"inet","host":"example.org","port":"24007"},{"type":"unix","path":"/path/to/sock"}],"debug":4,"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-1-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-1-format","id":"virtio-disk2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-http.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-http.x86_64-latest.args
index 84a7309bae..91b7a2aee1 100644
--- a/tests/qemuxml2argvdata/disk-network-http.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-http.x86_64-latest.args
@@ -26,21 +26,21 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"http","url":"http://example.org:80/test.img","timeout":1234,"node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-4-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-4-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"https","url":"https://example.org:443/test2.img","readahead":1024,"node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-3-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-3-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-2-storage-httpcookie-secret0","data":"DrPR9NA6GKJb7qi1KbjHaealKEMVtOWUl2h3yvO5lgIh6cyLHemmlg+h9fcgwREA","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"http","url":"http://example.org:1234/test3.img","cookie-secret":"libvirt-2-storage-httpcookie-secret0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk2"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-storage-httpcookie-secret0","data":"DrPR9NA6GKJb7qi1KbjHaealKEMVtOWUl2h3yvO5lgIh6cyLHemmlg+h9fcgwREA","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"https","url":"https://example.org:1234/test4.img?par=val&other=ble","sslverify":false,"cookie-secret":"libvirt-1-storage-httpcookie-secret0","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-1-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk3"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-iscsi.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-iscsi.x86_64-latest.args
index 9fa6c5f259..2aaa3d87b0 100644
--- a/tests/qemuxml2argvdata/disk-network-iscsi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-iscsi.x86_64-latest.args
@@ -26,32 +26,32 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example","lun":0,"transport":"tcp","node-name":"libvirt-7-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-7-format","read-only":false,"driver":"raw","file":"libvirt-7-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-7-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-7-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example","lun":1,"transport":"tcp","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"raw","file":"libvirt-6-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-6-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-6-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-5-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-5-storage-auth-secret0","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"raw","file":"libvirt-5-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-5-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-5-format","id":"virtio-disk2"}' \
 -object '{"qom-type":"secret","id":"libvirt-4-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example:storage","lun":2,"transport":"tcp","user":"myname","password-secret":"libvirt-4-storage-auth-secret0","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-4-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-4-format","id":"virtio-disk3"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example","lun":0,"transport":"tcp","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=libvirt-3-format,id=scsi0-0-0-0 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"drive":"libvirt-3-format","id":"scsi0-0-0-0"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:server","lun":0,"transport":"tcp","initiator-name":"iqn.1992-01.com.example:client","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=libvirt-2-format,id=scsi0-0-0-1 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":1,"drive":"libvirt-2-format","id":"scsi0-0-0-1"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:server","lun":0,"transport":"tcp","user":"myname","password-secret":"libvirt-1-storage-auth-secret0","initiator-name":"iqn.1992-01.com.example:client","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=2,drive=libvirt-1-format,id=scsi0-0-0-2 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":2,"drive":"libvirt-1-format","id":"scsi0-0-0-2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-nbd.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-nbd.x86_64-latest.args
index 565af0e811..f2700ff336 100644
--- a/tests/qemuxml2argvdata/disk-network-nbd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-nbd.x86_64-latest.args
@@ -26,22 +26,22 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"nbd","server":{"type":"inet","host":"example.org","port":"6000"},"node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"raw","file":"libvirt-5-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-5-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-5-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"nbd","server":{"type":"inet","host":"example.org","port":"6000"},"export":"bar","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-4-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-4-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"nbd","server":{"type":"inet","host":"::1","port":"6000"},"node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-3-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-3-format","id":"virtio-disk2"}' \
 -blockdev '{"driver":"nbd","server":{"type":"inet","host":"::1","port":"6000"},"export":"bar","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-2-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-2-format","id":"virtio-disk3"}' \
 -blockdev '{"driver":"nbd","server":{"type":"unix","path":"/var/run/nbdsock"},"export":"bar","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-1-format,id=virtio-disk4 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-1-format","id":"virtio-disk4"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-nfs.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-nfs.x86_64-latest.args
index 6a48289c06..a2a617b5db 100644
--- a/tests/qemuxml2argvdata/disk-network-nfs.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-nfs.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"nfs","server":{"host":"example.com","type":"inet"},"path":"/foo/bar/baz","user":6234,"group":12354,"node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-3-format,id=virtio-disk0,bootindex=1,write-cache=on,serial=eb90327c-8302-4725-9e1b-4e85ed4dc251 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-3-format","id":"virtio-disk0","bootindex":1,"write-cache":"on","serial":"eb90327c-8302-4725-9e1b-4e85ed4dc251"}' \
 -blockdev '{"driver":"nfs","server":{"host":"example.org","type":"inet"},"path":"/backing/store/nfs","user":1234,"group":5678,"node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"qcow2","file":"libvirt-2-storage","backing":null}' \
 -blockdev '{"driver":"gluster","volume":"Volume2","path":"Image","server":[{"type":"unix","path":"/path/to/sock"}],"debug":4,"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":"libvirt-2-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-rbd-no-colon.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-rbd-no-colon.x86_64-latest.args
index 9a35dbcf7f..b39bc64393 100644
--- a/tests/qemuxml2argvdata/disk-network-rbd-no-colon.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-rbd-no-colon.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"rbd","pool":"poolname","image":"imagename:rbd_cache=1:rbd_cache_size=67108864:rbd_cache_max_dirty=0","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-1-format,id=virtio-disk0 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-1-format","id":"virtio-disk0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-rbd.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-rbd.x86_64-latest.args
index 94cf0724eb..2ce7637ae6 100644
--- a/tests/qemuxml2argvdata/disk-network-rbd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-rbd.x86_64-latest.args
@@ -26,26 +26,26 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"raw","file":"libvirt-6-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-6-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-6-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","snapshot":"asdf","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"raw","file":"libvirt-5-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-5-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-5-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","snapshot":"foo","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-4-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-4-format","id":"virtio-disk2"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","snapshot":"foo","conf":"/blah/test.conf","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-3-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-3-format","id":"virtio-disk3"}' \
 -object '{"qom-type":"secret","id":"libvirt-2-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"user":"myname","auth-client-required":["cephx","none"],"key-secret":"libvirt-2-storage-auth-secret0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-2-format,id=virtio-disk4 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-2-format","id":"virtio-disk4"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"::1","port":"6321"},{"host":"example.org","port":"6789"},{"host":"ffff:1234:567:abc::0f","port":"6322"},{"host":"2001:db8::ff00:42:8329","port":"6322"}],"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk5 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk5"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-source-auth.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-source-auth.x86_64-latest.args
index 258e255cf7..5241ff3475 100644
--- a/tests/qemuxml2argvdata/disk-network-source-auth.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-source-auth.x86_64-latest.args
@@ -26,19 +26,19 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-3-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-3-storage-auth-secret0","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-3-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-3-format","id":"virtio-disk0","bootindex":1}' \
 -object '{"qom-type":"secret","id":"libvirt-2-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"user":"myname","auth-client-required":["cephx","none"],"key-secret":"libvirt-2-storage-auth-secret0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-2-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-2-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image2","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"user":"myname","auth-client-required":["cephx","none"],"key-secret":"libvirt-1-storage-auth-secret0","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-1-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-1-format","id":"virtio-disk2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-network-tlsx509-nbd.x86_64-latest.args b/tests/qemuxml2argvdata/disk-network-tlsx509-nbd.x86_64-latest.args
index ba5876babb..ae8e6e10f5 100644
--- a/tests/qemuxml2argvdata/disk-network-tlsx509-nbd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-network-tlsx509-nbd.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"objlibvirt-1-storage_tls0-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -object '{"qom-type":"tls-creds-x509","id":"objlibvirt-1-storage_tls0","dir":"/etc/pki/libvirt-nbd/dummy,path","endpoint":"client","verify-peer":true,"passwordid":"objlibvirt-1-storage_tls0-secret0"}' \
 -blockdev '{"driver":"nbd","server":{"type":"inet","host":"example.com","port":"1234"},"tls-creds":"objlibvirt-1-storage_tls0","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk3,bootindex=1,write-cache=on \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk3","bootindex":1,"write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-no-boot.x86_64-latest.args b/tests/qemuxml2argvdata/disk-no-boot.x86_64-latest.args
index 5721d691cb..2094d7e722 100644
--- a/tests/qemuxml2argvdata/disk-no-boot.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-no-boot.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -global isa-fdc.bootindexA=3 \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=2 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":2}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-2-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-2-format","id":"ide0-1-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/fd0","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device floppy,unit=0,drive=libvirt-1-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-1-format","id":"fdc0-0-0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-nvme.x86_64-latest.args b/tests/qemuxml2argvdata/disk-nvme.x86_64-latest.args
index 051d6f82e4..d97994b56e 100644
--- a/tests/qemuxml2argvdata/disk-nvme.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-nvme.x86_64-latest.args
@@ -26,21 +26,21 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x3"}' \
 -blockdev '{"driver":"nvme","device":"0000:01:00.0","namespace":1,"node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-4-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-4-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"nvme","device":"0000:01:00.0","namespace":2,"node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-3-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-3-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"nvme","device":"0000:02:00.0","namespace":1,"node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-2-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-2-format","id":"virtio-disk2"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"nvme","device":"0001:02:00.0","namespace":2,"node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-1-format-encryption-secret0"},"file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk3,write-cache=on \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk3","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-order.x86_64-latest.args b/tests/qemuxml2argvdata/disk-order.x86_64-latest.args
index 1138d27ab5..970b25f429 100644
--- a/tests/qemuxml2argvdata/disk-order.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-order.x86_64-latest.args
@@ -26,20 +26,20 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-4-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-4-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-3-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-3-format","id":"ide0-1-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/logs.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-readonly-disk.x86_64-latest.args b/tests/qemuxml2argvdata/disk-readonly-disk.x86_64-latest.args
index 75c40feefe..5006d5cea2 100644
--- a/tests/qemuxml2argvdata/disk-readonly-disk.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-readonly-disk.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sr0","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-rotation.x86_64-latest.args b/tests/qemuxml2argvdata/disk-rotation.x86_64-latest.args
index 082c478dbe..fe117c43f5 100644
--- a/tests/qemuxml2argvdata/disk-rotation.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-rotation.x86_64-latest.args
@@ -26,18 +26,18 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-3-format,id=scsi0-0-0-0,bootindex=1,rotation_rate=7200 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","drive":"libvirt-3-format","id":"scsi0-0-0-0","bootindex":1,"rotation_rate":7200}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,device_id=drive-scsi0-0-0-1,drive=libvirt-2-format,id=scsi0-0-0-1,rotation_rate=1 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":1,"device_id":"drive-scsi0-0-0-1","drive":"libvirt-2-format","id":"scsi0-0-0-1","rotation_rate":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest3","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,rotation_rate=4500 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","rotation_rate":4500}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-sata-device.x86_64-latest.args b/tests/qemuxml2argvdata/disk-sata-device.x86_64-latest.args
index f1d236e8a5..2ce3938869 100644
--- a/tests/qemuxml2argvdata/disk-sata-device.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-sata-device.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device ahci,id=sata0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"ahci","id":"sata0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=sata0.0,drive=libvirt-1-format,id=sata0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"sata0.0","drive":"libvirt-1-format","id":"sata0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi-device-auto.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi-device-auto.x86_64-latest.args
index 45a09a381d..d6b70b28fc 100644
--- a/tests/qemuxml2argvdata/disk-scsi-device-auto.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi-device-auto.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device lsi,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"lsi","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi0.0,scsi-id=0,device_id=drive-scsi0-0-0,drive=libvirt-1-format,id=scsi0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","scsi-id":0,"device_id":"drive-scsi0-0-0","drive":"libvirt-1-format","id":"scsi0-0-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi-disk-split.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi-disk-split.x86_64-latest.args
index 9682fab58c..1eeebe3497 100644
--- a/tests/qemuxml2argvdata/disk-scsi-disk-split.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi-disk-split.x86_64-latest.args
@@ -26,24 +26,24 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
--device lsi,id=scsi1,bus=pci.0,addr=0x3 \
--device lsi,id=scsi2,bus=pci.0,addr=0x4 \
--device virtio-scsi-pci,id=scsi3,bus=pci.0,addr=0x5 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"lsi","id":"scsi1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"lsi","id":"scsi2","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi3","bus":"pci.0","addr":"0x5"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":true,"driver":"raw","file":"libvirt-4-storage"}' \
--device scsi-cd,bus=scsi0.0,channel=0,scsi-id=1,lun=0,device_id=drive-scsi0-0-1-0,drive=libvirt-4-format,id=scsi0-0-1-0 \
+-device '{"driver":"scsi-cd","bus":"scsi0.0","channel":0,"scsi-id":1,"lun":0,"device_id":"drive-scsi0-0-1-0","drive":"libvirt-4-format","id":"scsi0-0-1-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device scsi-cd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-3-format,id=scsi0-0-0-0 \
+-device '{"driver":"scsi-cd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","drive":"libvirt-3-format","id":"scsi0-0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=1,device_id=drive-scsi0-0-0-1,drive=libvirt-2-format,id=scsi0-0-0-1,bootindex=1 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":1,"device_id":"drive-scsi0-0-0-1","drive":"libvirt-2-format","id":"scsi0-0-0-1","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=1,lun=1,device_id=drive-scsi0-0-1-1,drive=libvirt-1-format,id=scsi0-0-1-1 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":1,"lun":1,"device_id":"drive-scsi0-0-1-1","drive":"libvirt-1-format","id":"scsi0-0-1-1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi-disk-vpd.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi-disk-vpd.x86_64-latest.args
index df46dd53e0..b8f8dd8d4d 100644
--- a/tests/qemuxml2argvdata/disk-scsi-disk-vpd.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi-disk-vpd.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
--device lsi,id=scsi1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"lsi","id":"scsi1","bus":"pci.0","addr":"0x3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-cd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-2-format,id=scsi0-0-0-0,vendor=SEAGATE,product=ST3146707LC \
+-device '{"driver":"scsi-cd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","drive":"libvirt-2-format","id":"scsi0-0-0-0","vendor":"SEAGATE","product":"ST3146707LC"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device 'scsi-hd,bus=scsi1.0,scsi-id=0,device_id=drive-scsi1-0-0,drive=libvirt-1-format,id=scsi1-0-0,bootindex=1,vendor=SEA GATE,product=ST67 807GD' \
+-device '{"driver":"scsi-hd","bus":"scsi1.0","scsi-id":0,"device_id":"drive-scsi1-0-0","drive":"libvirt-1-format","id":"scsi1-0-0","bootindex":1,"vendor":"SEA GATE","product":"ST67 807GD"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi-disk-wwn.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi-disk-wwn.x86_64-latest.args
index 887d2219af..6eaa3fdc37 100644
--- a/tests/qemuxml2argvdata/disk-scsi-disk-wwn.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi-disk-wwn.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
--device lsi,id=scsi1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"lsi","id":"scsi1","bus":"pci.0","addr":"0x3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-cd,bus=scsi0.0,channel=0,scsi-id=1,lun=0,device_id=WD-WMAP9A966149,drive=libvirt-2-format,id=scsi0-0-1-0,wwn=5764824127192592812,serial=WD-WMAP9A966149 \
+-device '{"driver":"scsi-cd","bus":"scsi0.0","channel":0,"scsi-id":1,"lun":0,"device_id":"WD-WMAP9A966149","drive":"libvirt-2-format","id":"scsi0-0-1-0","wwn":5764824127192592812,"serial":"WD-WMAP9A966149"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,drive=libvirt-1-format,id=scsi0-0-0-0,bootindex=1,wwn=5764824127192592813 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","drive":"libvirt-1-format","id":"scsi0-0-0-0","bootindex":1,"wwn":5764824127192592813}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi-lun-passthrough.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi-lun-passthrough.x86_64-latest.args
index 59b7115e6b..7f8332f429 100644
--- a/tests/qemuxml2argvdata/disk-scsi-lun-passthrough.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi-lun-passthrough.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
--device lsi,id=scsi1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"lsi","id":"scsi1","bus":"pci.0","addr":"0x3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=libvirt-2-format,id=scsi0-0-0-0,bootindex=1 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"drive":"libvirt-2-format","id":"scsi0-0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=1,lun=1,drive=libvirt-1-format,id=scsi0-0-1-1 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":1,"lun":1,"drive":"libvirt-1-format","id":"scsi0-0-1-1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-scsi.x86_64-latest.args b/tests/qemuxml2argvdata/disk-scsi.x86_64-latest.args
index 79b66da881..c564a1592e 100644
--- a/tests/qemuxml2argvdata/disk-scsi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-scsi.x86_64-latest.args
@@ -26,31 +26,31 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device lsi,id=scsi0,bus=pci.0,addr=0x2 \
--device megasas,id=scsi1,bus=pci.0,addr=0x3 \
--device mptsas1068,id=scsi2,bus=pci.0,addr=0x4 \
--device spapr-vscsi,id=scsi3,reg=8192 \
--device pvscsi,id=scsi4,bus=pci.0,addr=0x5 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"lsi","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"megasas","id":"scsi1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"mptsas1068","id":"scsi2","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"spapr-vscsi","id":"scsi3","reg":8192}' \
+-device '{"driver":"pvscsi","id":"scsi4","bus":"pci.0","addr":"0x5"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"raw","file":"libvirt-6-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-6-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-6-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk.img","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"raw","file":"libvirt-5-storage"}' \
--device scsi-hd,bus=scsi0.0,scsi-id=0,device_id=drive-scsi0-0-0,drive=libvirt-5-format,id=scsi0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","scsi-id":0,"device_id":"drive-scsi0-0-0","drive":"libvirt-5-format","id":"scsi0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk2.img","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device scsi-hd,bus=scsi1.0,channel=0,scsi-id=0,lun=0,device_id=abcdefghijklmn,drive=libvirt-4-format,id=scsi1-0-0-0,serial=abcdefghijklmn \
+-device '{"driver":"scsi-hd","bus":"scsi1.0","channel":0,"scsi-id":0,"lun":0,"device_id":"abcdefghijklmn","drive":"libvirt-4-format","id":"scsi1-0-0-0","serial":"abcdefghijklmn"}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk3.img","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device scsi-hd,bus=scsi2.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi2-0-0-0,drive=libvirt-3-format,id=scsi2-0-0-0,wwn=5764824127192592812 \
+-device '{"driver":"scsi-hd","bus":"scsi2.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi2-0-0-0","drive":"libvirt-3-format","id":"scsi2-0-0-0","wwn":5764824127192592812}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk4.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-hd,bus=scsi3.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi3-0-0-0,drive=libvirt-2-format,id=scsi3-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi3.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi3-0-0-0","drive":"libvirt-2-format","id":"scsi3-0-0-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/scsidisk5.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi4.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi4-0-0-0,drive=libvirt-1-format,id=scsi4-0-0-0 \
+-device '{"driver":"scsi-hd","bus":"scsi4.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi4-0-0-0","drive":"libvirt-1-format","id":"scsi4-0-0-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-serial.x86_64-latest.args b/tests/qemuxml2argvdata/disk-serial.x86_64-latest.args
index 4700f0fb3c..e51cc87ffb 100644
--- a/tests/qemuxml2argvdata/disk-serial.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-serial.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device 'ide-hd,bus=ide.0,unit=1,drive=libvirt-2-format,id=ide0-0-1,bootindex=1,serial=\ \ WD-WMAP9A966149' \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":1,"drive":"libvirt-2-format","id":"ide0-0-1","bootindex":1,"serial":"\\ \\ WD-WMAP9A966149"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/AllSerialChars","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device 'ide-hd,bus=ide.0,unit=2,drive=libvirt-1-format,id=ide0-0-2,serial=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_\ .+' \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":2,"drive":"libvirt-1-format","id":"ide0-0-2","serial":"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_\\ .+"}' \
 -drive file=/some/file,format=raw,if=sd,index=0 \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-shared.x86_64-latest.args b/tests/qemuxml2argvdata/disk-shared.x86_64-latest.args
index 0395455cae..7780de7730 100644
--- a/tests/qemuxml2argvdata/disk-shared.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-shared.x86_64-latest.args
@@ -26,21 +26,21 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-4-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-4-storage"}' \
--device ide-hd,bus=ide.0,unit=0,share-rw=on,drive=libvirt-4-format,id=ide0-0-0,bootindex=1,write-cache=on,serial=XYZXYZXYZYXXYZYZYXYZY \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"share-rw":true,"drive":"libvirt-4-format","id":"ide0-0-0","bootindex":1,"write-cache":"on","serial":"XYZXYZXYZYXXYZYZYXYZY"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-3-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-3-format","id":"ide0-1-0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/scsi","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,share-rw=on,drive=libvirt-2-format,id=scsi0-0-0-0,write-cache=on \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"device_id":"drive-scsi0-0-0-0","share-rw":true,"drive":"libvirt-2-format","id":"scsi0-0-0-0","write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/virtio","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,share-rw=on,drive=libvirt-1-format,id=virtio-disk0,write-cache=on \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","share-rw":true,"drive":"libvirt-1-format","id":"virtio-disk0","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-slices.x86_64-latest.args b/tests/qemuxml2argvdata/disk-slices.x86_64-latest.args
index f41bbeea09..1394b7144f 100644
--- a/tests/qemuxml2argvdata/disk-slices.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-slices.x86_64-latest.args
@@ -26,30 +26,30 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/raw.img","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"raw","offset":0,"size":321,"file":"libvirt-6-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-6-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-6-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/raw.img","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"driver":"raw","node-name":"libvirt-5-slice-sto","offset":9876,"size":123456789,"file":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":true,"driver":"qcow2","file":"libvirt-5-slice-sto","backing":null}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/overlay.qcow2","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"qcow2","file":"libvirt-4-storage","backing":"libvirt-5-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-4-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-4-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-3-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/luks.img","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"driver":"raw","node-name":"libvirt-3-slice-sto","offset":1234,"size":321,"file":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"luks","key-secret":"libvirt-3-format-encryption-secret0","file":"libvirt-3-slice-sto"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-3-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-3-format","id":"virtio-disk2"}' \
 -blockdev '{"driver":"nvme","device":"0000:02:00.0","namespace":1,"node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","offset":1234,"size":321,"file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-2-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-2-format","id":"virtio-disk3"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"nvme","device":"0001:02:00.0","namespace":2,"node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"driver":"raw","node-name":"libvirt-1-slice-sto","offset":1234,"size":321,"file":"libvirt-1-storage","auto-read-only":true,"discard":"unmap","cache":{"direct":true,"no-flush":false}}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-1-format-encryption-secret0"},"file":"libvirt-1-slice-sto"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk4,write-cache=on \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk4","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x5"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-snapshot.x86_64-latest.args b/tests/qemuxml2argvdata/disk-snapshot.x86_64-latest.args
index c400de452f..c674f70c79 100644
--- a/tests/qemuxml2argvdata/disk-snapshot.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-snapshot.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest3","node-name":"libvirt-2-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.2,unit=0,drive=libvirt-2-format,id=ide0-2-0,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.2","unit":0,"drive":"libvirt-2-format","id":"ide0-2-0","write-cache":"on"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-source-pool-mode.x86_64-latest.args b/tests/qemuxml2argvdata/disk-source-pool-mode.x86_64-latest.args
index a72147cb7f..94fd9d25fc 100644
--- a/tests/qemuxml2argvdata/disk-source-pool-mode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-source-pool-mode.x86_64-latest.args
@@ -26,20 +26,20 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/some/block/device/unit:0:0:1","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":true,"driver":"raw","file":"libvirt-4-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-4-format,id=ide0-0-1 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-4-format","id":"ide0-0-1"}' \
 -blockdev '{"driver":"iscsi","portal":"iscsi.example.com:3260","target":"demo-target","lun":2,"transport":"tcp","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.0,unit=2,drive=libvirt-3-format,id=ide0-0-2 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":2,"drive":"libvirt-3-format","id":"ide0-0-2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/idedisk.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=3,drive=libvirt-2-format,id=ide0-0-3,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":3,"drive":"libvirt-2-format","id":"ide0-0-3","bootindex":1}' \
 -blockdev '{"driver":"iscsi","portal":"iscsi.example.com:3260","target":"demo-target","lun":3,"transport":"tcp","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.0,unit=4,drive=libvirt-1-format,id=ide0-0-4 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":4,"drive":"libvirt-1-format","id":"ide0-0-4"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-source-pool.x86_64-latest.args b/tests/qemuxml2argvdata/disk-source-pool.x86_64-latest.args
index a48af2689c..a9498f0682 100644
--- a/tests/qemuxml2argvdata/disk-source-pool.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-source-pool.x86_64-latest.args
@@ -26,21 +26,21 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/some/block/device/cdrom","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":true,"driver":"raw","file":"libvirt-5-storage"}' \
--device ide-cd,bus=ide.0,unit=1,drive=libvirt-5-format,id=ide0-0-1 \
--device ide-cd,bus=ide.1,unit=0,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.0","unit":1,"drive":"libvirt-5-format","id":"ide0-0-1"}' \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"id":"ide0-1-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/idedisk.img","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=2,drive=libvirt-3-format,id=ide0-0-2,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":2,"drive":"libvirt-3-format","id":"ide0-0-2","bootindex":1}' \
 -blockdev '{"driver":"vvfat","dir":"/some/dir/device/vol1","floppy":false,"rw":false,"node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0"}' \
 -blockdev '{"driver":"vvfat","dir":"/some/dir/device/vol2","floppy":false,"rw":false,"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-transient.x86_64-latest.args b/tests/qemuxml2argvdata/disk-transient.x86_64-latest.args
index 18f16c3489..7cbdc8d0bf 100644
--- a/tests/qemuxml2argvdata/disk-transient.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-transient.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/QEMUGuest1.img","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args b/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args
index 0b26bb35a0..01016b429e 100644
--- a/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-usb-device-removable.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/usbdisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device usb-storage,bus=usb.0,port=1,drive=libvirt-1-format,id=usb-disk0,removable=on \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-1-format","id":"usb-disk0","removable":true}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-usb-device.x86_64-latest.args b/tests/qemuxml2argvdata/disk-usb-device.x86_64-latest.args
index 673d32e855..0e65a0e429 100644
--- a/tests/qemuxml2argvdata/disk-usb-device.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-usb-device.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-2-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-2-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/usbdisk.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device usb-storage,bus=usb.0,port=1,drive=libvirt-1-format,id=usb-disk0,removable=off \
+-device '{"driver":"usb-storage","bus":"usb.0","port":"1","drive":"libvirt-1-format","id":"usb-disk0","removable":false}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-vhostuser.x86_64-latest.args b/tests/qemuxml2argvdata/disk-vhostuser.x86_64-latest.args
index 9a956390ee..070d17ac98 100644
--- a/tests/qemuxml2argvdata/disk-vhostuser.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-vhostuser.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -chardev socket,id=chr-vu-virtio-disk0,path=/tmp/vhost1.sock \
--device vhost-user-blk-pci,bus=pci.0,addr=0x2,chardev=chr-vu-virtio-disk0,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"vhost-user-blk-pci","bus":"pci.0","addr":"0x2","chardev":"chr-vu-virtio-disk0","id":"virtio-disk0","bootindex":1}' \
 -chardev socket,id=chr-vu-virtio-disk1,path=/tmp/vhost1.sock,reconnect=10 \
--device vhost-user-blk-pci,iommu_platform=on,ats=on,packed=on,bus=pci.0,addr=0x3,chardev=chr-vu-virtio-disk1,id=virtio-disk1 \
+-device '{"driver":"vhost-user-blk-pci","iommu_platform":true,"ats":true,"packed":true,"bus":"pci.0","addr":"0x3","chardev":"chr-vu-virtio-disk1","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-virtio-queues.x86_64-latest.args b/tests/qemuxml2argvdata/disk-virtio-queues.x86_64-latest.args
index b1ff6de857..662f6ab858 100644
--- a/tests/qemuxml2argvdata/disk-virtio-queues.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-virtio-queues.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data.img","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,num-queues=4,bus=pci.0,addr=0x3,drive=libvirt-3-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","num-queues":4,"bus":"pci.0","addr":"0x3","drive":"libvirt-3-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/tmp/data1.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,queue-size=256,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","queue-size":256,"bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data2.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,num-queues=4,queue-size=256,bus=pci.0,addr=0x5,drive=libvirt-1-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","num-queues":4,"queue-size":256,"bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-virtio-scsi-reservations.x86_64-latest.args b/tests/qemuxml2argvdata/disk-virtio-scsi-reservations.x86_64-latest.args
index 9ff8f8f8fe..a80c207027 100644
--- a/tests/qemuxml2argvdata/disk-virtio-scsi-reservations.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-virtio-scsi-reservations.x86_64-latest.args
@@ -27,16 +27,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,num_queues=8,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","num_queues":8,"bus":"pci.0","addr":"0x3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","pr-manager":"pr-helper0","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=0,drive=libvirt-2-format,id=scsi0-0-0-0,bootindex=1 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":0,"drive":"libvirt-2-format","id":"scsi0-0-0-0","bootindex":1}' \
 -object '{"qom-type":"pr-manager-helper","id":"pr-helper-libvirt-1-storage","path":"/path/to/qemu-pr-helper.sock"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","pr-manager":"pr-helper-libvirt-1-storage","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-block,bus=scsi0.0,channel=0,scsi-id=0,lun=1,drive=libvirt-1-format,id=scsi0-0-0-1 \
+-device '{"driver":"scsi-block","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":1,"drive":"libvirt-1-format","id":"scsi0-0-0-1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/disk-virtio.x86_64-latest.args b/tests/qemuxml2argvdata/disk-virtio.x86_64-latest.args
index 0848b46ae7..bb159103f9 100644
--- a/tests/qemuxml2argvdata/disk-virtio.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/disk-virtio.x86_64-latest.args
@@ -26,19 +26,19 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"raw","file":"libvirt-4-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-4-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-4-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":true,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-3-format,id=ide0-1-0 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-3-format","id":"ide0-1-0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/data.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0"}' \
 -blockdev '{"driver":"file","filename":"/tmp/logs.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x3,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x3","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/encrypted-disk-usage.x86_64-latest.args b/tests/qemuxml2argvdata/encrypted-disk-usage.x86_64-latest.args
index 943b442478..db702af164 100644
--- a/tests/qemuxml2argvdata/encrypted-disk-usage.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/encrypted-disk-usage.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-encryptdisk/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-1-format-encryption-secret0"},"file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/encrypted-disk.x86_64-latest.args b/tests/qemuxml2argvdata/encrypted-disk.x86_64-latest.args
index 901ea75a00..c5e3184b35 100644
--- a/tests/qemuxml2argvdata/encrypted-disk.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/encrypted-disk.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-encryptdisk/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-1-format-encryption-secret0"},"file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/eoi-disabled.x86_64-latest.args b/tests/qemuxml2argvdata/eoi-disabled.x86_64-latest.args
index 6f67fb3bc6..46df7331f7 100644
--- a/tests/qemuxml2argvdata/eoi-disabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/eoi-disabled.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/eoi-enabled.x86_64-latest.args b/tests/qemuxml2argvdata/eoi-enabled.x86_64-latest.args
index 8ba1627a53..454d745dfa 100644
--- a/tests/qemuxml2argvdata/eoi-enabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/eoi-enabled.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/event_idx.x86_64-latest.args b/tests/qemuxml2argvdata/event_idx.x86_64-latest.args
index f8fb992920..600ab691d2 100644
--- a/tests/qemuxml2argvdata/event_idx.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/event_idx.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/f14.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"qcow2","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,event_idx=on,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","event_idx":true,"bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/Fedora-14-x86_64-Live-KDE.iso","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-cd,bus=ide.1,unit=0,drive=libvirt-1-format,id=ide0-1-0,bootindex=1 \
+-device '{"driver":"ide-cd","bus":"ide.1","unit":0,"drive":"libvirt-1-format","id":"ide0-1-0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,event_idx=off,netdev=hostnet0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","event_idx":false,"netdev":"hostnet0","id":"net0","mac":"52:54:00:e5:48:58","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/fips-enabled.x86_64-latest.args b/tests/qemuxml2argvdata/fips-enabled.x86_64-latest.args
index 08cf2450af..5cfc5607d2 100644
--- a/tests/qemuxml2argvdata/fips-enabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/fips-enabled.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/floppy-drive-fat.x86_64-latest.args b/tests/qemuxml2argvdata/floppy-drive-fat.x86_64-latest.args
index e212ba0a41..3c6b524e0e 100644
--- a/tests/qemuxml2argvdata/floppy-drive-fat.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/floppy-drive-fat.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -global isa-fdc.bootindexA=1 \
 -blockdev '{"driver":"vvfat","dir":"/var/somefiles","floppy":true,"rw":false,"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":true,"driver":"raw","file":"libvirt-1-storage"}' \
--device floppy,unit=0,drive=libvirt-1-format,id=fdc0-0-0 \
+-device '{"driver":"floppy","unit":0,"drive":"libvirt-1-format","id":"fdc0-0-0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/fs9p.x86_64-latest.args b/tests/qemuxml2argvdata/fs9p.x86_64-latest.args
index b5c66cbf90..ee440aad87 100644
--- a/tests/qemuxml2argvdata/fs9p.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/fs9p.x86_64-latest.args
@@ -27,11 +27,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-acpi \
 -boot strict=on \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/to/guest \
--device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=/import/from/host,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"/import/from/host","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=mapped,writeout=immediate,id=fsdev-fs1,path=/export/to/guest2 \
--device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,mount_tag=/import/from/host2,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","id":"fs1","fsdev":"fsdev-fs1","mount_tag":"/import/from/host2","bus":"pci.0","addr":"0x3"}' \
 -fsdev handle,writeout=immediate,id=fsdev-fs2,path=/export/to/guest3 \
--device virtio-9p-pci,id=fs2,fsdev=fsdev-fs2,mount_tag=/import/from/host3,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-9p-pci","id":"fs2","fsdev":"fsdev-fs2","mount_tag":"/import/from/host3","bus":"pci.0","addr":"0x4"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/genid-auto.x86_64-latest.args b/tests/qemuxml2argvdata/genid-auto.x86_64-latest.args
index 54250e4284..71daf8f4c9 100644
--- a/tests/qemuxml2argvdata/genid-auto.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/genid-auto.x86_64-latest.args
@@ -17,7 +17,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -overcommit mem-lock=off \
 -smp 1,sockets=1,cores=1,threads=1 \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
--device vmgenid,guid=00010203-0405-4607-8809-0a0b0c0d0e0f,id=vmgenid0 \
+-device '{"driver":"vmgenid","guid":"00010203-0405-4607-8809-0a0b0c0d0e0f","id":"vmgenid0"}' \
 -display none \
 -no-user-config \
 -nodefaults \
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/genid.x86_64-latest.args b/tests/qemuxml2argvdata/genid.x86_64-latest.args
index 6aef0bff48..dba094376f 100644
--- a/tests/qemuxml2argvdata/genid.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/genid.x86_64-latest.args
@@ -17,7 +17,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -overcommit mem-lock=off \
 -smp 1,sockets=1,cores=1,threads=1 \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
--device vmgenid,guid=e9392370-2917-565e-692b-d057f46512d6,id=vmgenid0 \
+-device '{"driver":"vmgenid","guid":"e9392370-2917-565e-692b-d057f46512d6","id":"vmgenid0"}' \
 -display none \
 -no-user-config \
 -nodefaults \
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.x86_64-latest.args
index 106c6ee23c..434aa11ba6 100644
--- a/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -display egl-headless,rendernode=/dev/dri/foo \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-egl-headless.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-egl-headless.x86_64-latest.args
index 106c6ee23c..434aa11ba6 100644
--- a/tests/qemuxml2argvdata/graphics-egl-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-egl-headless.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -display egl-headless,rendernode=/dev/dri/foo \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-spice-gl-auto-rendernode.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-spice-gl-auto-rendernode.x86_64-latest.args
index 460b9f4981..b4404eb70b 100644
--- a/tests/qemuxml2argvdata/graphics-spice-gl-auto-rendernode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-spice-gl-auto-rendernode.x86_64-latest.args
@@ -25,10 +25,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=spice \
 -spice port=0,gl=on,rendernode=/dev/dri/foo,seamless-migration=on \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-auto-socket-cfg.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-auto-socket-cfg.x86_64-latest.args
index 5fa93dc611..81ed944499 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-auto-socket-cfg.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-auto-socket-cfg.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc vnc=unix:/tmp/lib/domain--1-QEMUGuest1/vnc.sock,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-auto-socket.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-auto-socket.x86_64-latest.args
index c2ea5ca77c..036469af15 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-auto-socket.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-auto-socket.x86_64-latest.args
@@ -25,9 +25,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc vnc=unix:/tmp/lib/domain--1-QEMUGuest1/vnc.sock,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-egl-headless.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-egl-headless.x86_64-latest.args
index 82e3659173..8c03254a9f 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-egl-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-egl-headless.x86_64-latest.args
@@ -25,13 +25,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc '[2001:1:2:3:4:5:1234:1234]:3,audiodev=audio1' \
 -display egl-headless,rendernode=/dev/dri/foo \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-no-listen-attr.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-no-listen-attr.x86_64-latest.args
index a0bc3560d8..94848500f8 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-no-listen-attr.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-no-listen-attr.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc '[2001:1:2:3:4:5:1234:1234]:3,audiodev=audio1' \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-none.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-none.x86_64-latest.args
index 32b54db8cd..ecd928c727 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-none.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-none.x86_64-latest.args
@@ -25,9 +25,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc none,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-policy.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-policy.x86_64-latest.args
index d7ec89dd2e..fef983571c 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-policy.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-policy.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc '[::]:59630,share=allow-exclusive,audiodev=audio1' \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-power.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-power.x86_64-latest.args
index d668a627f8..24ceb9a7ab 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-power.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-power.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc '[::]:59630,power-control=on,audiodev=audio1' \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-remove-generated-socket.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-remove-generated-socket.x86_64-latest.args
index 17eb03319d..06477d5ece 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-remove-generated-socket.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-remove-generated-socket.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-sasl.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-sasl.x86_64-latest.args
index 46dbde8e51..d687ae0e0a 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-sasl.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-sasl.x86_64-latest.args
@@ -26,12 +26,12 @@ SASL_CONF_PATH=/root/.sasl2 \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:3,sasl=on,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-socket-new-cmdline.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-socket-new-cmdline.x86_64-latest.args
index 9c87bab4d2..9b7d0aff9e 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-socket-new-cmdline.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-socket-new-cmdline.x86_64-latest.args
@@ -25,9 +25,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc vnc=unix:/tmp/foo=bar.sock,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-socket.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-socket.x86_64-latest.args
index af595caf10..40dc3a1770 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-socket.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-socket.x86_64-latest.args
@@ -25,9 +25,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc vnc=unix:/tmp/vnc.sock,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-tls-secret.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-tls-secret.x86_64-latest.args
index 35469b64e0..150ee86763 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-tls-secret.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-tls-secret.x86_64-latest.args
@@ -26,11 +26,11 @@ SASL_CONF_PATH=/root/.sasl2 \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -object '{"qom-type":"secret","id":"vnc-tls-creds0-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -object '{"qom-type":"tls-creds-x509","id":"vnc-tls-creds0","dir":"/etc/pki/libvirt-vnc","endpoint":"server","verify-peer":true,"passwordid":"vnc-tls-creds0-secret0"}' \
 -vnc 127.0.0.1:3,tls-creds=vnc-tls-creds0,sasl=on,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-tls.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-tls.x86_64-latest.args
index 819ec9ad4b..99dc77e23f 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-tls.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-tls.x86_64-latest.args
@@ -26,10 +26,10 @@ SASL_CONF_PATH=/root/.sasl2 \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -object '{"qom-type":"tls-creds-x509","id":"vnc-tls-creds0","dir":"/etc/pki/libvirt-vnc","endpoint":"server","verify-peer":true}' \
 -vnc 127.0.0.1:3,tls-creds=vnc-tls-creds0,sasl=on,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc-websocket.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc-websocket.x86_64-latest.args
index ac7129d400..458634ead0 100644
--- a/tests/qemuxml2argvdata/graphics-vnc-websocket.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc-websocket.x86_64-latest.args
@@ -25,9 +25,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,websocket=5700,audiodev=audio1 \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/graphics-vnc.x86_64-latest.args b/tests/qemuxml2argvdata/graphics-vnc.x86_64-latest.args
index a0bc3560d8..94848500f8 100644
--- a/tests/qemuxml2argvdata/graphics-vnc.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/graphics-vnc.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -vnc '[2001:1:2:3:4:5:1234:1234]:3,audiodev=audio1' \
--device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \
+-device '{"driver":"cirrus-vga","id":"video0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.x86_64-latest.args
index ab1ac4e1be..c47a7dea2d 100644
--- a/tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-mdev-display-ramfb.x86_64-latest.args
@@ -25,10 +25,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device vfio-pci-nohotplug,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,ramfb=on,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vfio-pci-nohotplug","id":"hostdev0","sysfsdev":"/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc","display":"on","ramfb":true,"bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.x86_64-latest.args
index 59e005b06a..c659ad10e1 100644
--- a/tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=spice \
 -spice port=0,seamless-migration=on \
 -display egl-headless,rendernode=/dev/dri/foo \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device vfio-pci,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vfio-pci","id":"hostdev0","sysfsdev":"/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc","display":"on","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.x86_64-latest.args
index 9b95b8d36f..43d1ab2f2b 100644
--- a/tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.x86_64-latest.args
@@ -25,10 +25,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=spice \
 -spice port=0,gl=on,rendernode=/dev/dri/foo,seamless-migration=on \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device vfio-pci,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vfio-pci","id":"hostdev0","sysfsdev":"/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc","display":"on","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.x86_64-latest.args
index fae541a4e2..90e2d7ffae 100644
--- a/tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
 -display egl-headless,rendernode=/dev/dri/foo \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device vfio-pci,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vfio-pci","id":"hostdev0","sysfsdev":"/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc","display":"on","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-mdev-display-vnc.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-mdev-display-vnc.x86_64-latest.args
index a917efef84..9911c79452 100644
--- a/tests/qemuxml2argvdata/hostdev-mdev-display-vnc.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-mdev-display-vnc.x86_64-latest.args
@@ -25,10 +25,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device vfio-pci,id=hostdev0,sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vfio-pci","id":"hostdev0","sysfsdev":"/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc","display":"on","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-scsi-lsi.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-scsi-lsi.x86_64-latest.args
index eeec33fe98..347940df86 100644
--- a/tests/qemuxml2argvdata/hostdev-scsi-lsi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-scsi-lsi.x86_64-latest.args
@@ -26,26 +26,26 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device lsi,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"lsi","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -blockdev '{"driver":"host_device","filename":"/dev/sg0","node-name":"libvirt-2-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-2-backend,id=hostdev0,bus=scsi0.0,scsi-id=7 \
+-device '{"driver":"scsi-generic","drive":"libvirt-2-backend","id":"hostdev0","bus":"scsi0.0","scsi-id":7}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sg0","node-name":"libvirt-3-backend","read-only":true}' \
--device scsi-generic,drive=libvirt-3-backend,id=hostdev1,bus=scsi0.0,scsi-id=6 \
+-device '{"driver":"scsi-generic","drive":"libvirt-3-backend","id":"hostdev1","bus":"scsi0.0","scsi-id":6}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example","lun":0,"transport":"tcp","node-name":"libvirt-4-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-4-backend,id=hostdev2,bus=scsi0.0,scsi-id=4 \
+-device '{"driver":"scsi-generic","drive":"libvirt-4-backend","id":"hostdev2","bus":"scsi0.0","scsi-id":4}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example","lun":1,"transport":"tcp","node-name":"libvirt-5-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-5-backend,id=hostdev3,bus=scsi0.0,scsi-id=5 \
+-device '{"driver":"scsi-generic","drive":"libvirt-5-backend","id":"hostdev3","bus":"scsi0.0","scsi-id":5}' \
 -object '{"qom-type":"secret","id":"libvirt-6-backend-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-6-backend-secret0","node-name":"libvirt-6-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-6-backend,id=hostdev4,bus=scsi0.0,scsi-id=3 \
+-device '{"driver":"scsi-generic","drive":"libvirt-6-backend","id":"hostdev4","bus":"scsi0.0","scsi-id":3}' \
 -object '{"qom-type":"secret","id":"libvirt-7-backend-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:storage","lun":2,"transport":"tcp","user":"myname","password-secret":"libvirt-7-backend-secret0","node-name":"libvirt-7-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-7-backend,id=hostdev5,bus=scsi0.0,scsi-id=2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"scsi-generic","drive":"libvirt-7-backend","id":"hostdev5","bus":"scsi0.0","scsi-id":2}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hostdev-scsi-virtio-scsi.x86_64-latest.args b/tests/qemuxml2argvdata/hostdev-scsi-virtio-scsi.x86_64-latest.args
index ad2cde5171..e51cc0cd77 100644
--- a/tests/qemuxml2argvdata/hostdev-scsi-virtio-scsi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hostdev-scsi-virtio-scsi.x86_64-latest.args
@@ -26,28 +26,28 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest2/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.0","addr":"0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -blockdev '{"driver":"host_device","filename":"/dev/sg0","node-name":"libvirt-2-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-2-backend,id=hostdev0,bus=scsi0.0,channel=0,scsi-id=4,lun=8 \
+-device '{"driver":"scsi-generic","drive":"libvirt-2-backend","id":"hostdev0","bus":"scsi0.0","channel":0,"scsi-id":4,"lun":8}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sg0","node-name":"libvirt-3-backend","read-only":true}' \
--device scsi-generic,drive=libvirt-3-backend,id=hostdev1,bus=scsi0.0,channel=0,scsi-id=4,lun=7 \
+-device '{"driver":"scsi-generic","drive":"libvirt-3-backend","id":"hostdev1","bus":"scsi0.0","channel":0,"scsi-id":4,"lun":7}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sg0","node-name":"libvirt-4-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-4-backend,id=ua-7996c8dc-a4fa-4012-b76f-043d20144263,bus=scsi0.0,channel=0,scsi-id=4,lun=6 \
+-device '{"driver":"scsi-generic","drive":"libvirt-4-backend","id":"ua-7996c8dc-a4fa-4012-b76f-043d20144263","bus":"scsi0.0","channel":0,"scsi-id":4,"lun":6}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example","lun":0,"transport":"tcp","node-name":"libvirt-5-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-5-backend,id=hostdev2,bus=scsi0.0,channel=0,scsi-id=2,lun=4 \
+-device '{"driver":"scsi-generic","drive":"libvirt-5-backend","id":"hostdev2","bus":"scsi0.0","channel":0,"scsi-id":2,"lun":4}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example","lun":1,"transport":"tcp","node-name":"libvirt-6-backend","read-only":true}' \
--device scsi-generic,drive=libvirt-6-backend,id=hostdev3,bus=scsi0.0,channel=0,scsi-id=2,lun=5 \
+-device '{"driver":"scsi-generic","drive":"libvirt-6-backend","id":"hostdev3","bus":"scsi0.0","channel":0,"scsi-id":2,"lun":5}' \
 -object '{"qom-type":"secret","id":"libvirt-7-backend-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-7-backend-secret0","node-name":"libvirt-7-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-7-backend,id=hostdev4,bus=scsi0.0,channel=0,scsi-id=3,lun=4 \
+-device '{"driver":"scsi-generic","drive":"libvirt-7-backend","id":"hostdev4","bus":"scsi0.0","channel":0,"scsi-id":3,"lun":4}' \
 -object '{"qom-type":"secret","id":"libvirt-8-backend-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:3260","target":"iqn.1992-01.com.example:storage","lun":2,"transport":"tcp","user":"myname","password-secret":"libvirt-8-backend-secret0","initiator-name":"iqn.2020-07.com.example:test","node-name":"libvirt-8-backend","read-only":false}' \
--device scsi-generic,drive=libvirt-8-backend,id=hostdev5,bus=scsi0.0,channel=0,scsi-id=3,lun=5 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"scsi-generic","drive":"libvirt-8-backend","id":"hostdev5","bus":"scsi0.0","channel":0,"scsi-id":3,"lun":5}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hugepages-memaccess3.x86_64-latest.args b/tests/qemuxml2argvdata/hugepages-memaccess3.x86_64-latest.args
index ae5b48aa1c..1ddf8536f5 100644
--- a/tests/qemuxml2argvdata/hugepages-memaccess3.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hugepages-memaccess3.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fedora/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args b/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
index 9f3c6fa63f..94eea13977 100644
--- a/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-file","id":"ram-node0","mem-path":"/dev/hugepages2M/libvirt/qemu/-1-QEMUGuest1","share":true,"prealloc":true,"size":1073741824}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":true,"prealloc":true,"size":536870912}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,7 +29,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hyperv-off.x86_64-latest.args b/tests/qemuxml2argvdata/hyperv-off.x86_64-latest.args
index f02bf480a4..283c4930c0 100644
--- a/tests/qemuxml2argvdata/hyperv-off.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hyperv-off.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hyperv-panic.x86_64-latest.args b/tests/qemuxml2argvdata/hyperv-panic.x86_64-latest.args
index 2226cc3848..70059fdf57 100644
--- a/tests/qemuxml2argvdata/hyperv-panic.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hyperv-panic.x86_64-latest.args
@@ -25,7 +25,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hyperv-stimer-direct.x86_64-latest.args b/tests/qemuxml2argvdata/hyperv-stimer-direct.x86_64-latest.args
index a05c009389..a2ed7ff79a 100644
--- a/tests/qemuxml2argvdata/hyperv-stimer-direct.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hyperv-stimer-direct.x86_64-latest.args
@@ -25,7 +25,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/hyperv.x86_64-latest.args b/tests/qemuxml2argvdata/hyperv.x86_64-latest.args
index 32ee369ff3..130ba75e4e 100644
--- a/tests/qemuxml2argvdata/hyperv.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hyperv.x86_64-latest.args
@@ -25,7 +25,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/input-linux.x86_64-latest.args b/tests/qemuxml2argvdata/input-linux.x86_64-latest.args
index 3c7e65a7f0..98f534750c 100644
--- a/tests/qemuxml2argvdata/input-linux.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/input-linux.x86_64-latest.args
@@ -26,9 +26,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"input-linux","id":"input0","evdev":"/dev/input/event1234","repeat":true,"grab_all":true,"grab-toggle":"alt-alt"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/intel-iommu-aw-bits.x86_64-latest.args b/tests/qemuxml2argvdata/intel-iommu-aw-bits.x86_64-latest.args
index 48535d2bdf..081c9e46be 100644
--- a/tests/qemuxml2argvdata/intel-iommu-aw-bits.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/intel-iommu-aw-bits.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device intel-iommu,intremap=on,aw-bits=48 \
+-device '{"driver":"intel-iommu","intremap":"on","aw-bits":48}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/intel-iommu-caching-mode.x86_64-latest.args b/tests/qemuxml2argvdata/intel-iommu-caching-mode.x86_64-latest.args
index 902d00f5cf..9a4d11e03c 100644
--- a/tests/qemuxml2argvdata/intel-iommu-caching-mode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/intel-iommu-caching-mode.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device intel-iommu,intremap=on,caching-mode=on \
+-device '{"driver":"intel-iommu","intremap":"on","caching-mode":true}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/intel-iommu-device-iotlb.x86_64-latest.args b/tests/qemuxml2argvdata/intel-iommu-device-iotlb.x86_64-latest.args
index 7e6b0a74d8..eeecbb67b5 100644
--- a/tests/qemuxml2argvdata/intel-iommu-device-iotlb.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/intel-iommu-device-iotlb.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device intel-iommu,intremap=on,device-iotlb=on \
+-device '{"driver":"intel-iommu","intremap":"on","device-iotlb":true}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/intel-iommu-eim.x86_64-latest.args b/tests/qemuxml2argvdata/intel-iommu-eim.x86_64-latest.args
index c04ce0460a..5dd52f10bc 100644
--- a/tests/qemuxml2argvdata/intel-iommu-eim.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/intel-iommu-eim.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device intel-iommu,intremap=on,eim=on \
+-device '{"driver":"intel-iommu","intremap":"on","eim":"on"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/intel-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/intel-iommu.x86_64-latest.args
index 082f8a3270..bea1b72f24 100644
--- a/tests/qemuxml2argvdata/intel-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/intel-iommu.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device intel-iommu \
+-device '{"driver":"intel-iommu"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/iothreads-virtio-scsi-pci.x86_64-latest.args b/tests/qemuxml2argvdata/iothreads-virtio-scsi-pci.x86_64-latest.args
index 2763a7f9d8..94963bd7a4 100644
--- a/tests/qemuxml2argvdata/iothreads-virtio-scsi-pci.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/iothreads-virtio-scsi-pci.x86_64-latest.args
@@ -28,17 +28,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,iothread=iothread2,id=scsi0,bus=pci.0,addr=0xb \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","iothread":"iothread2","id":"scsi0","bus":"pci.0","addr":"0xb"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"raw","file":"libvirt-3-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-3-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-3-format","id":"ide0-0-0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/iothrtest1.img","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,iothread=iothread1,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","iothread":"iothread1","bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk1"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/iothrtest2.img","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device scsi-hd,bus=scsi0.0,channel=0,scsi-id=0,lun=3,device_id=drive-scsi0-0-0-3,drive=libvirt-1-format,id=scsi0-0-0-3 \
+-device '{"driver":"scsi-hd","bus":"scsi0.0","channel":0,"scsi-id":0,"lun":3,"device_id":"drive-scsi0-0-0-3","drive":"libvirt-1-format","id":"scsi0-0-0-3"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/kvmclock+eoi-disabled.x86_64-latest.args b/tests/qemuxml2argvdata/kvmclock+eoi-disabled.x86_64-latest.args
index 57bdb536ab..764a22d0d4 100644
--- a/tests/qemuxml2argvdata/kvmclock+eoi-disabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/kvmclock+eoi-disabled.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/luks-disks-source-qcow2.x86_64-latest.args b/tests/qemuxml2argvdata/luks-disks-source-qcow2.x86_64-latest.args
index 57f770a758..9608620467 100644
--- a/tests/qemuxml2argvdata/luks-disks-source-qcow2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/luks-disks-source-qcow2.x86_64-latest.args
@@ -26,36 +26,36 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-encryptdisk/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-7-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk","node-name":"libvirt-7-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-7-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-7-format-encryption-secret0"},"file":"libvirt-7-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-7-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-7-format","id":"virtio-disk0","bootindex":1}' \
 -object '{"qom-type":"secret","id":"libvirt-6-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk2","node-name":"libvirt-6-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-6-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-6-format-encryption-secret0"},"file":"libvirt-6-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-6-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-6-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-5-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -object '{"qom-type":"secret","id":"libvirt-5-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-5-storage-auth-secret0","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-5-format-encryption-secret0"},"file":"libvirt-5-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-5-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-5-format","id":"virtio-disk2"}' \
 -object '{"qom-type":"secret","id":"libvirt-4-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"iscsi.example.com:3260","target":"demo-target","lun":3,"transport":"tcp","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-4-format-encryption-secret0"},"file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-4-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-4-format","id":"virtio-disk3"}' \
 -object '{"qom-type":"secret","id":"libvirt-3-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-3-format-encryption-secret0"},"file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-3-format,id=virtio-disk4 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-3-format","id":"virtio-disk4"}' \
 -object '{"qom-type":"secret","id":"libvirt-2-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/base.qcow2","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":true,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-2-format-encryption-secret0"},"file":"libvirt-2-storage","backing":null}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk5","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","encrypt":{"format":"luks","key-secret":"libvirt-1-format-encryption-secret0"},"file":"libvirt-1-storage","backing":"libvirt-2-format"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x8,drive=libvirt-1-format,id=virtio-disk5 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x8","drive":"libvirt-1-format","id":"virtio-disk5"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/luks-disks-source.x86_64-latest.args b/tests/qemuxml2argvdata/luks-disks-source.x86_64-latest.args
index 67ecf0ea95..31726ba9f3 100644
--- a/tests/qemuxml2argvdata/luks-disks-source.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/luks-disks-source.x86_64-latest.args
@@ -26,29 +26,29 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-encryptdisk/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-5-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk","node-name":"libvirt-5-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-5-format","read-only":false,"driver":"luks","key-secret":"libvirt-5-format-encryption-secret0","file":"libvirt-5-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-5-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-5-format","id":"virtio-disk0","bootindex":1}' \
 -object '{"qom-type":"secret","id":"libvirt-4-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk2","node-name":"libvirt-4-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-4-format","read-only":false,"driver":"luks","key-secret":"libvirt-4-format-encryption-secret0","file":"libvirt-4-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-4-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-4-format","id":"virtio-disk1"}' \
 -object '{"qom-type":"secret","id":"libvirt-3-storage-auth-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -object '{"qom-type":"secret","id":"libvirt-3-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"example.org:6000","target":"iqn.1992-01.com.example:storage","lun":1,"transport":"tcp","user":"myname","password-secret":"libvirt-3-storage-auth-secret0","node-name":"libvirt-3-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-3-format","read-only":false,"driver":"luks","key-secret":"libvirt-3-format-encryption-secret0","file":"libvirt-3-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-3-format,id=virtio-disk2 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-3-format","id":"virtio-disk2"}' \
 -object '{"qom-type":"secret","id":"libvirt-2-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"iscsi","portal":"iscsi.example.com:3260","target":"demo-target","lun":3,"transport":"tcp","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"luks","key-secret":"libvirt-2-format-encryption-secret0","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-2-format,id=virtio-disk3 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-2-format","id":"virtio-disk3"}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"rbd","pool":"pool","image":"image","server":[{"host":"mon1.example.org","port":"6321"},{"host":"mon2.example.org","port":"6322"},{"host":"mon3.example.org","port":"6322"}],"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"luks","key-secret":"libvirt-1-format-encryption-secret0","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x7,drive=libvirt-1-format,id=virtio-disk4 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x7","drive":"libvirt-1-format","id":"virtio-disk4"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/luks-disks.x86_64-latest.args b/tests/qemuxml2argvdata/luks-disks.x86_64-latest.args
index c9db60c736..d285f09cc8 100644
--- a/tests/qemuxml2argvdata/luks-disks.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/luks-disks.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-encryptdisk/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -object '{"qom-type":"secret","id":"libvirt-2-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"luks","key-secret":"libvirt-2-format-encryption-secret0","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":1}' \
 -object '{"qom-type":"secret","id":"libvirt-1-format-encryption-secret0","data":"9eao5F8qtkGt+seB1HYivWIxbtwUu6MQtg1zpj/oDtUsPr1q8wBYM91uEHCn6j/1","keyid":"masterKey0","iv":"AAECAwQFBgcICQoLDA0ODw==","format":"base64"}' \
 -blockdev '{"driver":"file","filename":"/storage/guest_disks/encryptdisk2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"luks","key-secret":"libvirt-1-format-encryption-secret0","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args b/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
index 5e54908666..f3d1c6c5f4 100644
--- a/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
@@ -27,8 +27,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-instance-00000092/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
index 3b33db3c55..4b6468001a 100644
--- a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-instance-00000092/.config \
 -object '{"qom-type":"memory-backend-memfd","id":"ram-node0","hugetlb":true,"hugetlbsize":2097152,"share":true,"prealloc":true,"size":15032385536,"host-nodes":[3],"policy":"preferred"}' \
 -numa node,nodeid=0,cpus=0-7,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":true,"prealloc":true,"size":536870912,"host-nodes":[3],"policy":"preferred"}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid 126f2720-6f8e-45ab-a886-ec9277079a67 \
 -display none \
 -no-user-config \
@@ -29,8 +29,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-instance-00000092/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
index d124ba7f29..9bd4038381 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":224395264}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":false,"prealloc":true,"size":536870912}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
index c3f5c8d558..87d48b1bb8 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":224395264}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":false,"prealloc":true,"size":536870912,"align":2097152}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
index 51ff3dc455..37ccab931a 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":224395264}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":false,"prealloc":true,"size":536870912}' \
--device nvdimm,node=0,label-size=131072,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"label-size":131072,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
index 19ecd08ae5..772c63cbc9 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":224395264}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":false,"size":536870912,"pmem":true}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
index 6e9cf15a14..e1c57c2d03 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":224395264}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","share":false,"prealloc":true,"size":536870912}' \
--device nvdimm,node=0,unarmed=on,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"unarmed":true,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
index 789f4fa11f..671af859aa 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":1073741824}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memnvdimm0","mem-path":"/tmp/nvdimm","prealloc":true,"size":536870912}' \
--device nvdimm,node=0,memdev=memnvdimm0,id=nvdimm0,slot=0 \
+-device '{"driver":"nvdimm","node":0,"memdev":"memnvdimm0","id":"nvdimm0","slot":0}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
index 22ee1bc459..069206173b 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-virtio-mem.x86_64-latest.args
@@ -18,9 +18,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":2145386496}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-ram","id":"memvirtiomem0","reserve":false,"size":1073741824}' \
--device virtio-mem-pci,node=0,block-size=2097152,requested-size=536870912,memdev=memvirtiomem0,id=virtiomem0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-mem-pci","node":0,"block-size":2097152,"requested-size":536870912,"memdev":"memvirtiomem0","id":"virtiomem0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"memory-backend-file","id":"memvirtiomem1","mem-path":"/dev/hugepages2M/libvirt/qemu/-1-QEMUGuest1","reserve":false,"size":2147483648,"host-nodes":[1,2,3],"policy":"bind"}' \
--device virtio-mem-pci,node=0,block-size=2097152,requested-size=1073741824,memdev=memvirtiomem1,id=virtiomem1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-mem-pci","node":0,"block-size":2097152,"requested-size":1073741824,"memdev":"memvirtiomem1","id":"virtiomem1","bus":"pci.0","addr":"0x3"}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -31,11 +31,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/memory-hotplug-virtio-pmem.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-virtio-pmem.x86_64-latest.args
index 4b1c17378b..882a08b84d 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-virtio-pmem.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-virtio-pmem.x86_64-latest.args
@@ -18,7 +18,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -object '{"qom-type":"memory-backend-ram","id":"ram-node0","size":2145386496}' \
 -numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
 -object '{"qom-type":"memory-backend-file","id":"memvirtiopmem0","mem-path":"/tmp/virtio_pmem","share":true,"size":536870912}' \
--device virtio-pmem-pci,memdev=memvirtiopmem0,id=virtiopmem0,bus=pci.0,addr=0x5 \
+-device '{"driver":"virtio-pmem-pci","memdev":"memvirtiopmem0","id":"virtiopmem0","bus":"pci.0","addr":"0x5"}' \
 -uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
 -display none \
 -no-user-config \
@@ -29,11 +29,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/misc-no-reboot.x86_64-latest.args b/tests/qemuxml2argvdata/misc-no-reboot.x86_64-latest.args
index f34e9c8708..3041af6a59 100644
--- a/tests/qemuxml2argvdata/misc-no-reboot.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/misc-no-reboot.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/mlock-off.x86_64-latest.args b/tests/qemuxml2argvdata/mlock-off.x86_64-latest.args
index 16973e6c4f..0c0064e1d3 100644
--- a/tests/qemuxml2argvdata/mlock-off.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/mlock-off.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/mlock-on.x86_64-latest.args b/tests/qemuxml2argvdata/mlock-on.x86_64-latest.args
index b6d1988c30..949913a4c1 100644
--- a/tests/qemuxml2argvdata/mlock-on.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/mlock-on.x86_64-latest.args
@@ -26,7 +26,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/net-vdpa.x86_64-latest.args b/tests/qemuxml2argvdata/net-vdpa.x86_64-latest.args
index 76320b2374..cb27a2a7be 100644
--- a/tests/qemuxml2argvdata/net-vdpa.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/net-vdpa.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -add-fd set=0,fd=1732,opaque=/dev/vhost-vdpa-0 \
 -netdev vhost-vdpa,vhostdev=/dev/fdset/0,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:95:db:c0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:95:db:c0","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/net-vhostuser.x86_64-latest.args b/tests/qemuxml2argvdata/net-vhostuser.x86_64-latest.args
index 1ac6d60fb8..03f56ef81a 100644
--- a/tests/qemuxml2argvdata/net-vhostuser.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/net-vhostuser.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -chardev socket,id=charnet0,path=/tmp/vhost0.sock,server=on \
 -netdev vhost-user,chardev=charnet0,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:ee:96:6b,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:ee:96:6b","bus":"pci.0","addr":"0x2"}' \
 -chardev socket,id=charnet1,path=/tmp/vhost1.sock \
 -netdev vhost-user,chardev=charnet1,id=hostnet1 \
--device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:ee:96:6c,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet1","id":"net1","mac":"52:54:00:ee:96:6c","bus":"pci.0","addr":"0x3"}' \
 -netdev socket,listen=:2015,id=hostnet2 \
--device rtl8139,netdev=hostnet2,id=net2,mac=52:54:00:95:db:c0,bus=pci.0,addr=0x4 \
+-device '{"driver":"rtl8139","netdev":"hostnet2","id":"net2","mac":"52:54:00:95:db:c0","bus":"pci.0","addr":"0x4"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/numatune-hmat.x86_64-latest.args b/tests/qemuxml2argvdata/numatune-hmat.x86_64-latest.args
index 54ab91b09c..fc4756fcc2 100644
--- a/tests/qemuxml2argvdata/numatune-hmat.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/numatune-hmat.x86_64-latest.args
@@ -41,8 +41,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
index 6d5e2eb76e..b547b0b3d6 100644
--- a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
@@ -31,8 +31,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/numatune-memnode.x86_64-latest.args b/tests/qemuxml2argvdata/numatune-memnode.x86_64-latest.args
index fa639f48fe..6a08a7efbd 100644
--- a/tests/qemuxml2argvdata/numatune-memnode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/numatune-memnode.x86_64-latest.args
@@ -31,8 +31,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/os-firmware-bios.x86_64-latest.args b/tests/qemuxml2argvdata/os-firmware-bios.x86_64-latest.args
index 12f4e8fcb9..18e9f0d3ea 100644
--- a/tests/qemuxml2argvdata/os-firmware-bios.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/os-firmware-bios.x86_64-latest.args
@@ -28,14 +28,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fedora/.config \
 -global ICH9-LPC.disable_s3=0 \
 -global ICH9-LPC.disable_s4=1 \
 -boot menu=on,strict=on \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
--device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
--device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,addr=0x1d \
--device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
--device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
+-device '{"driver":"i82801b11-bridge","id":"pci.1","bus":"pcie.0","addr":"0x1e"}' \
+-device '{"driver":"pci-bridge","chassis_nr":2,"id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"ioh3420","port":8,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"ich9-usb-ehci1","id":"usb","bus":"pcie.0","addr":"0x1d.0x7"}' \
+-device '{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pcie.0","multifunction":true,"addr":"0x1d"}' \
+-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pcie.0","addr":"0x1d.0x1"}' \
+-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pcie.0","addr":"0x1d.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x1"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/os-firmware-efi-no-enrolled-keys.x86_64-latest.args b/tests/qemuxml2argvdata/os-firmware-efi-no-enrolled-keys.x86_64-latest.args
index 5669c4c12a..9a1f6a0ebf 100644
--- a/tests/qemuxml2argvdata/os-firmware-efi-no-enrolled-keys.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/os-firmware-efi-no-enrolled-keys.x86_64-latest.args
@@ -29,9 +29,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fedora/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/os-firmware-efi-secboot.x86_64-latest.args b/tests/qemuxml2argvdata/os-firmware-efi-secboot.x86_64-latest.args
index b0dc79088a..7aca5f5ea3 100644
--- a/tests/qemuxml2argvdata/os-firmware-efi-secboot.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/os-firmware-efi-secboot.x86_64-latest.args
@@ -32,14 +32,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fedora/.config \
 -global ICH9-LPC.disable_s3=0 \
 -global ICH9-LPC.disable_s4=1 \
 -boot menu=on,strict=on \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
--device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
--device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,addr=0x1d \
--device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
--device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
+-device '{"driver":"i82801b11-bridge","id":"pci.1","bus":"pcie.0","addr":"0x1e"}' \
+-device '{"driver":"pci-bridge","chassis_nr":2,"id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"ioh3420","port":8,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"ich9-usb-ehci1","id":"usb","bus":"pcie.0","addr":"0x1d.0x7"}' \
+-device '{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pcie.0","multifunction":true,"addr":"0x1d"}' \
+-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pcie.0","addr":"0x1d.0x1"}' \
+-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pcie.0","addr":"0x1d.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x1"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/os-firmware-efi.x86_64-latest.args b/tests/qemuxml2argvdata/os-firmware-efi.x86_64-latest.args
index 99dcc39d0f..dcf2455461 100644
--- a/tests/qemuxml2argvdata/os-firmware-efi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/os-firmware-efi.x86_64-latest.args
@@ -31,14 +31,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-fedora/.config \
 -global ICH9-LPC.disable_s3=0 \
 -global ICH9-LPC.disable_s4=1 \
 -boot menu=on,strict=on \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
--device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
--device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,addr=0x1d \
--device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
--device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
+-device '{"driver":"i82801b11-bridge","id":"pci.1","bus":"pcie.0","addr":"0x1e"}' \
+-device '{"driver":"pci-bridge","chassis_nr":2,"id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"ioh3420","port":8,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"ich9-usb-ehci1","id":"usb","bus":"pcie.0","addr":"0x1d.0x7"}' \
+-device '{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pcie.0","multifunction":true,"addr":"0x1d"}' \
+-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pcie.0","addr":"0x1d.0x1"}' \
+-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pcie.0","addr":"0x1d.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x1"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/panic-double.x86_64-latest.args b/tests/qemuxml2argvdata/panic-double.x86_64-latest.args
index 960339c1b2..9e54f2f990 100644
--- a/tests/qemuxml2argvdata/panic-double.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/panic-double.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device pvpanic,ioport=1285 \
+-device '{"driver":"pvpanic","ioport":1285}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/panic-no-address.x86_64-latest.args b/tests/qemuxml2argvdata/panic-no-address.x86_64-latest.args
index 7949091e87..1e63fde002 100644
--- a/tests/qemuxml2argvdata/panic-no-address.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/panic-no-address.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device pvpanic \
+-device '{"driver":"pvpanic"}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/panic.x86_64-latest.args b/tests/qemuxml2argvdata/panic.x86_64-latest.args
index 35e387696e..782d252cde 100644
--- a/tests/qemuxml2argvdata/panic.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/panic.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device pvpanic,ioport=1285 \
+-device '{"driver":"pvpanic","ioport":1285}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/parallel-unix-chardev.x86_64-latest.args b/tests/qemuxml2argvdata/parallel-unix-chardev.x86_64-latest.args
index dad197b1cf..3c15fc9910 100644
--- a/tests/qemuxml2argvdata/parallel-unix-chardev.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/parallel-unix-chardev.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -chardev socket,id=charparallel0,fd=1729,server=on,wait=off \
--device isa-parallel,chardev=charparallel0,id=parallel0 \
+-device '{"driver":"isa-parallel","chardev":"charparallel0","id":"parallel0"}' \
 -chardev socket,id=charparallel1,path=/tmp/parport1.socket \
--device isa-parallel,chardev=charparallel1,id=parallel1 \
+-device '{"driver":"isa-parallel","chardev":"charparallel1","id":"parallel1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-disable.x86_64-latest.args b/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-disable.x86_64-latest.args
index 26de6c81ec..8a3e91c95e 100644
--- a/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-disable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-disable.x86_64-latest.args
@@ -27,8 +27,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-i440fx/.config \
 -no-acpi \
 -global PIIX4_PM.acpi-pci-hotplug-with-bridge-support=off \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-enable.x86_64-latest.args b/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-enable.x86_64-latest.args
index 92b1c8c541..77ef82f25b 100644
--- a/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-enable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pc-i440fx-acpi-hotplug-bridge-enable.x86_64-latest.args
@@ -27,8 +27,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-i440fx/.config \
 -no-acpi \
 -global PIIX4_PM.acpi-pci-hotplug-with-bridge-support=on \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-disable.x86_64-latest.args b/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-disable.x86_64-latest.args
index 056a925bc0..9e19078aa3 100644
--- a/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-disable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-disable.x86_64-latest.args
@@ -27,8 +27,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-i440fx/.config \
 -no-acpi \
 -boot strict=on \
 -global PIIX4_PM.acpi-root-pci-hotplug=off \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-enable.x86_64-latest.args b/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-enable.x86_64-latest.args
index 244877a88f..7cd8d4a05f 100644
--- a/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-enable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pc-i440fx-acpi-root-hotplug-enable.x86_64-latest.args
@@ -27,8 +27,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-i440fx/.config \
 -no-acpi \
 -boot strict=on \
 -global PIIX4_PM.acpi-root-pci-hotplug=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pcie-root-port-nohotplug.x86_64-latest.args b/tests/qemuxml2argvdata/pcie-root-port-nohotplug.x86_64-latest.args
index a43f6dda90..e75054b80d 100644
--- a/tests/qemuxml2argvdata/pcie-root-port-nohotplug.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pcie-root-port-nohotplug.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,hotplug=off,bus=pcie.0,addr=0x1.0x1 \
--device ioh3420,port=10,chassis=3,id=pci.3,hotplug=off,bus=pcie.0,addr=0x1.0x2 \
--device x3130-upstream,id=pci.4,bus=pci.1,addr=0x0 \
--device xio3130-downstream,port=0,chassis=5,id=pci.5,hotplug=off,bus=pci.4,addr=0x0 \
--device xio3130-downstream,port=1,chassis=6,id=pci.6,hotplug=on,bus=pci.4,addr=0x1 \
--device xio3130-downstream,port=2,chassis=7,id=pci.7,bus=pci.4,addr=0x2 \
--device xio3130-downstream,port=39,chassis=30,id=pci.8,bus=pci.4,addr=0x3 \
--device qemu-xhci,id=usb,bus=pci.2,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","hotplug":false,"bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"ioh3420","port":10,"chassis":3,"id":"pci.3","hotplug":false,"bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"x3130-upstream","id":"pci.4","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"xio3130-downstream","port":0,"chassis":5,"id":"pci.5","hotplug":false,"bus":"pci.4","addr":"0x0"}' \
+-device '{"driver":"xio3130-downstream","port":1,"chassis":6,"id":"pci.6","hotplug":true,"bus":"pci.4","addr":"0x1"}' \
+-device '{"driver":"xio3130-downstream","port":2,"chassis":7,"id":"pci.7","bus":"pci.4","addr":"0x2"}' \
+-device '{"driver":"xio3130-downstream","port":39,"chassis":30,"id":"pci.8","bus":"pci.4","addr":"0x3"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.2","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pv-spinlock-disabled.x86_64-latest.args b/tests/qemuxml2argvdata/pv-spinlock-disabled.x86_64-latest.args
index a7a107f4b8..d728d3e110 100644
--- a/tests/qemuxml2argvdata/pv-spinlock-disabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pv-spinlock-disabled.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/pv-spinlock-enabled.x86_64-latest.args b/tests/qemuxml2argvdata/pv-spinlock-enabled.x86_64-latest.args
index b217034eb0..bdf07ba921 100644
--- a/tests/qemuxml2argvdata/pv-spinlock-enabled.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/pv-spinlock-enabled.x86_64-latest.args
@@ -25,8 +25,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-disable.x86_64-latest.args b/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-disable.x86_64-latest.args
index 1284975b75..5558f371ea 100644
--- a/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-disable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-disable.x86_64-latest.args
@@ -27,11 +27,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-q35/.config \
 -no-acpi \
 -global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off \
 -boot strict=on \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
--device qemu-xhci,id=usb,bus=pci.3,addr=0x0 \
+-device '{"driver":"i82801b11-bridge","id":"pci.1","bus":"pcie.0","addr":"0x1e"}' \
+-device '{"driver":"pci-bridge","chassis_nr":2,"id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"ioh3420","port":8,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.3","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x1"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-enable.x86_64-latest.args b/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-enable.x86_64-latest.args
index 07ad55abb6..4ff07ad3b8 100644
--- a/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-enable.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/q35-acpi-hotplug-bridge-enable.x86_64-latest.args
@@ -27,11 +27,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-q35/.config \
 -no-acpi \
 -global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=on \
 -boot strict=on \
--device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
--device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
--device ioh3420,port=8,chassis=3,id=pci.3,bus=pcie.0,addr=0x1 \
--device qemu-xhci,id=usb,bus=pci.3,addr=0x0 \
+-device '{"driver":"i82801b11-bridge","id":"pci.1","bus":"pcie.0","addr":"0x1e"}' \
+-device '{"driver":"pci-bridge","chassis_nr":2,"id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"ioh3420","port":8,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.3","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x1"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/qemu-ns.x86_64-latest.args b/tests/qemuxml2argvdata/qemu-ns.x86_64-latest.args
index c434ff17a1..34688dbcf4 100644
--- a/tests/qemuxml2argvdata/qemu-ns.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/qemu-ns.x86_64-latest.args
@@ -29,12 +29,12 @@ BAR='' \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -unknown parameter \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/serial-unix-chardev.x86_64-latest.args b/tests/qemuxml2argvdata/serial-unix-chardev.x86_64-latest.args
index 55a568d50f..64ad0be640 100644
--- a/tests/qemuxml2argvdata/serial-unix-chardev.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/serial-unix-chardev.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -chardev socket,id=charserial0,path=/tmp/serial.sock \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -chardev socket,id=charserial1,fd=1729,server=on,wait=off \
--device isa-serial,chardev=charserial1,id=serial1 \
+-device '{"driver":"isa-serial","chardev":"charserial1","id":"serial1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/smartcard-passthrough-unix.x86_64-latest.args b/tests/qemuxml2argvdata/smartcard-passthrough-unix.x86_64-latest.args
index da82e3d50a..6e88026146 100644
--- a/tests/qemuxml2argvdata/smartcard-passthrough-unix.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/smartcard-passthrough-unix.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device usb-ccid,id=ccid0,bus=usb.0,port=1 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"usb-ccid","id":"ccid0","bus":"usb.0","port":"1"}' \
 -chardev socket,id=charsmartcard0,fd=1729,server=on,wait=off \
--device ccid-card-passthru,chardev=charsmartcard0,id=smartcard0,bus=ccid0.0 \
+-device '{"driver":"ccid-card-passthru","chardev":"charsmartcard0","id":"smartcard0","bus":"ccid0.0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-emulator-tpm2-enc.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-emulator-tpm2-enc.x86_64-latest.args
index a36eef6d03..ff96260bf0 100644
--- a/tests/qemuxml2argvdata/tpm-emulator-tpm2-enc.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-emulator-tpm2-enc.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev emulator,id=tpm-tpm0,chardev=chrtpm \
 -chardev socket,id=chrtpm,path=/dev/test \
--device tpm-tis,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-emulator-tpm2-pstate.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-emulator-tpm2-pstate.x86_64-latest.args
index a36eef6d03..ff96260bf0 100644
--- a/tests/qemuxml2argvdata/tpm-emulator-tpm2-pstate.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-emulator-tpm2-pstate.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev emulator,id=tpm-tpm0,chardev=chrtpm \
 -chardev socket,id=chrtpm,path=/dev/test \
--device tpm-tis,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-emulator-tpm2.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-emulator-tpm2.x86_64-latest.args
index a36eef6d03..ff96260bf0 100644
--- a/tests/qemuxml2argvdata/tpm-emulator-tpm2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-emulator-tpm2.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev emulator,id=tpm-tpm0,chardev=chrtpm \
 -chardev socket,id=chrtpm,path=/dev/test \
--device tpm-tis,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-emulator.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-emulator.x86_64-latest.args
index a36eef6d03..ff96260bf0 100644
--- a/tests/qemuxml2argvdata/tpm-emulator.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-emulator.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev emulator,id=tpm-tpm0,chardev=chrtpm \
 -chardev socket,id=chrtpm,path=/dev/test \
--device tpm-tis,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-passthrough-crb.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-passthrough-crb.x86_64-latest.args
index 5f7cc2b272..6f60c4b710 100644
--- a/tests/qemuxml2argvdata/tpm-passthrough-crb.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-passthrough-crb.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev passthrough,id=tpm-tpm0,path=/dev/fdset/0,cancel-path=/dev/fdset/1 \
 -add-fd set=0,fd=1730 \
 -add-fd set=1,fd=1731 \
--device tpm-crb,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-crb","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tpm-passthrough.x86_64-latest.args b/tests/qemuxml2argvdata/tpm-passthrough.x86_64-latest.args
index a0a93a8fbf..f5a69821e9 100644
--- a/tests/qemuxml2argvdata/tpm-passthrough.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tpm-passthrough.x86_64-latest.args
@@ -25,12 +25,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-TPM-VM/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -tpmdev passthrough,id=tpm-tpm0,path=/dev/fdset/0,cancel-path=/dev/fdset/1 \
 -add-fd set=0,fd=1730 \
 -add-fd set=1,fd=1731 \
--device tpm-tis,tpmdev=tpm-tpm0,id=tpm0 \
+-device '{"driver":"tpm-tis","tpmdev":"tpm-tpm0","id":"tpm0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/tseg-explicit-size.x86_64-latest.args b/tests/qemuxml2argvdata/tseg-explicit-size.x86_64-latest.args
index ed72935350..1a73a35eb3 100644
--- a/tests/qemuxml2argvdata/tseg-explicit-size.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/tseg-explicit-size.x86_64-latest.args
@@ -27,11 +27,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x0 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.2","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/usb-redir-unix.x86_64-latest.args b/tests/qemuxml2argvdata/usb-redir-unix.x86_64-latest.args
index fd969b7dde..bb3c26dbd4 100644
--- a/tests/qemuxml2argvdata/usb-redir-unix.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/usb-redir-unix.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x4.0x7 \
--device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x4 \
--device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x4.0x1 \
--device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x4.0x2 \
+-device '{"driver":"ich9-usb-ehci1","id":"usb","bus":"pci.0","addr":"0x4.0x7"}' \
+-device '{"driver":"ich9-usb-uhci1","masterbus":"usb.0","firstport":0,"bus":"pci.0","multifunction":true,"addr":"0x4"}' \
+-device '{"driver":"ich9-usb-uhci2","masterbus":"usb.0","firstport":2,"bus":"pci.0","addr":"0x4.0x1"}' \
+-device '{"driver":"ich9-usb-uhci3","masterbus":"usb.0","firstport":4,"bus":"pci.0","addr":"0x4.0x2"}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=charredir0,path=/tmp/connect.socket \
--device usb-redir,chardev=charredir0,id=redir0,bus=usb.0,port=1 \
+-device '{"driver":"usb-redir","chardev":"charredir0","id":"redir0","bus":"usb.0","port":"1"}' \
 -chardev socket,id=charredir1,fd=1729,server=on,wait=off \
--device usb-redir,chardev=charredir1,id=redir1,bus=usb.0,port=2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"usb-redir","chardev":"charredir1","id":"redir1","bus":"usb.0","port":"2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-user-fs-fd-memory.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-fs-fd-memory.x86_64-latest.args
index 8adab6da81..699d82cdca 100644
--- a/tests/qemuxml2argvdata/vhost-user-fs-fd-memory.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-fs-fd-memory.x86_64-latest.args
@@ -28,7 +28,7 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -no-acpi \
 -boot strict=on \
 -chardev socket,id=chr-vu-fs0,path=/tmp/lib/domain--1-guest/fs0-fs.sock \
--device vhost-user-fs-pci,id=fs0,chardev=chr-vu-fs0,queue-size=1024,tag=mount_tag,bus=pci.0,addr=0x2 \
+-device '{"driver":"vhost-user-fs-pci","id":"fs0","chardev":"chr-vu-fs0","queue-size":1024,"tag":"mount_tag","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-user-fs-hugepages.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-fs-hugepages.x86_64-latest.args
index 8743ef8d3f..3892b034f2 100644
--- a/tests/qemuxml2argvdata/vhost-user-fs-hugepages.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-fs-hugepages.x86_64-latest.args
@@ -26,15 +26,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device pcie-root-port,port=11,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.4","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -chardev socket,id=chr-vu-fs0,path=/tmp/lib/domain--1-guest/fs0-fs.sock \
--device vhost-user-fs-pci,id=fs0,chardev=chr-vu-fs0,tag=mount_tag,bootindex=2,bus=pci.1,addr=0x0 \
+-device '{"driver":"vhost-user-fs-pci","id":"fs0","chardev":"chr-vu-fs0","tag":"mount_tag","bootindex":2,"bus":"pci.1","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
index 6df0365e76..d35f120018 100644
--- a/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-gpu-secondary.x86_64-latest.args
@@ -27,15 +27,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
 -chardev socket,id=chr-vu-video1,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device vhost-user-gpu-pci,id=video1,max_outputs=1,chardev=chr-vu-video1,bus=pci.0,addr=0x4 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vhost-user-gpu-pci","id":"video1","max_outputs":1,"chardev":"chr-vu-video1","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
index 0bdd98d3b6..7710a5b5a6 100644
--- a/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-user-vga.x86_64-latest.args
@@ -27,13 +27,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-vsock-auto.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-vsock-auto.x86_64-latest.args
index 1c19f35b34..4002a47898 100644
--- a/tests/qemuxml2argvdata/vhost-vsock-auto.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-vsock-auto.x86_64-latest.args
@@ -26,9 +26,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device vhost-vsock-pci,id=vsock0,guest-cid=42,vhostfd=6789,bus=pci.0,addr=0x2 \
+-device '{"driver":"vhost-vsock-pci","id":"vsock0","guest-cid":42,"vhostfd":"6789","bus":"pci.0","addr":"0x2"}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-vsock.x86_64-latest.args b/tests/qemuxml2argvdata/vhost-vsock.x86_64-latest.args
index fa7bfd8a1d..5388bbf748 100644
--- a/tests/qemuxml2argvdata/vhost-vsock.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/vhost-vsock.x86_64-latest.args
@@ -26,9 +26,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -audiodev id=audio1,driver=none \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device vhost-vsock-pci,id=vsock0,guest-cid=4,vhostfd=6789,bus=pci.0,addr=0x7 \
+-device '{"driver":"vhost-vsock-pci","id":"vsock0","guest-cid":4,"vhostfd":"6789","bus":"pci.0","addr":"0x7"}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/video-bochs-display-device.x86_64-latest.args b/tests/qemuxml2argvdata/video-bochs-display-device.x86_64-latest.args
index 3af0ecf2b1..b21f56d93a 100644
--- a/tests/qemuxml2argvdata/video-bochs-display-device.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/video-bochs-display-device.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/QEMUGuest1","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device bochs-display,id=video0,vgamem=16777216,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"bochs-display","id":"video0","vgamem":16777216,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/video-qxl-device-vram64.x86_64-latest.args b/tests/qemuxml2argvdata/video-qxl-device-vram64.x86_64-latest.args
index 513da37f37..b3a8db9729 100644
--- a/tests/qemuxml2argvdata/video-qxl-device-vram64.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/video-qxl-device-vram64.x86_64-latest.args
@@ -26,9 +26,9 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=128,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":128,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/video-qxl-sec-device-vram64.x86_64-latest.args b/tests/qemuxml2argvdata/video-qxl-sec-device-vram64.x86_64-latest.args
index f484af81ed..7533e7446c 100644
--- a/tests/qemuxml2argvdata/video-qxl-sec-device-vram64.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/video-qxl-sec-device-vram64.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device qxl,id=video1,ram_size=67108864,vram_size=67108864,vram64_size_mb=128,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x4 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"qxl","id":"video1","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":128,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/video-ramfb-display-device.x86_64-latest.args b/tests/qemuxml2argvdata/video-ramfb-display-device.x86_64-latest.args
index 630b80fbd0..b4dd773957 100644
--- a/tests/qemuxml2argvdata/video-ramfb-display-device.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/video-ramfb-display-device.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/QEMUGuest1","node-name":"libvirt-1-storage","cache":{"direct":true,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1,write-cache=on \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1,"write-cache":"on"}' \
 -audiodev id=audio1,driver=none \
--device ramfb,id=video0 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"ramfb","id":"video0"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.x86_64-latest.args b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.x86_64-latest.args
index d38082410f..43433428ad 100644
--- a/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/video-virtio-vga-gpu-gl.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-vga-gl,id=video0,max_outputs=1,bus=pci.0,addr=0x2 \
--device virtio-gpu-gl-pci,id=video1,max_outputs=1,bus=pci.0,addr=0x4 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-vga-gl","id":"video0","max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-gpu-gl-pci","id":"video1","max_outputs":1,"bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-9p-createmode.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-9p-createmode.x86_64-latest.args
index 1243f9d305..505123d073 100644
--- a/tests/qemuxml2argvdata/virtio-9p-createmode.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-9p-createmode.x86_64-latest.args
@@ -26,18 +26,18 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -fsdev local,security_model=mapped,fmode=0644,id=fsdev-fs0,path=/export/fs0 \
--device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs0","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=mapped,dmode=0755,id=fsdev-fs1,path=/export/fs1 \
--device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,mount_tag=fs1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs1","bus":"pci.0","addr":"0x3"}' \
 -fsdev local,security_model=mapped,fmode=0640,dmode=0750,id=fsdev-fs2,path=/export/fs2 \
--device virtio-9p-pci,id=fs2,fsdev=fsdev-fs2,mount_tag=fs2,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-9p-pci","id":"fs2","fsdev":"fsdev-fs2","mount_tag":"fs2","bus":"pci.0","addr":"0x4"}' \
 -fsdev local,security_model=mapped,id=fsdev-fs3,path=/export/fs3 \
--device virtio-9p-pci,id=fs3,fsdev=fsdev-fs3,mount_tag=fs3,bus=pci.0,addr=0x5 \
+-device '{"driver":"virtio-9p-pci","id":"fs3","fsdev":"fsdev-fs3","mount_tag":"fs3","bus":"pci.0","addr":"0x5"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xc \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0xc"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-9p-multidevs.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-9p-multidevs.x86_64-latest.args
index 43dfae29bf..47c036406c 100644
--- a/tests/qemuxml2argvdata/virtio-9p-multidevs.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-9p-multidevs.x86_64-latest.args
@@ -26,16 +26,16 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -fsdev local,security_model=mapped,multidevs=remap,id=fsdev-fs0,path=/export/fs0 \
--device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs0","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=mapped,multidevs=forbid,id=fsdev-fs1,path=/export/fs1 \
--device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,mount_tag=fs1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs1","bus":"pci.0","addr":"0x3"}' \
 -fsdev local,security_model=mapped,multidevs=warn,id=fsdev-fs2,path=/export/fs2 \
--device virtio-9p-pci,id=fs2,fsdev=fsdev-fs2,mount_tag=fs2,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-9p-pci","id":"fs2","fsdev":"fsdev-fs2","mount_tag":"fs2","bus":"pci.0","addr":"0x4"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xc \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0xc"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-lun.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-lun.x86_64-latest.args
index e66502ea4e..c973a9acbf 100644
--- a/tests/qemuxml2argvdata/virtio-lun.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-lun.x86_64-latest.args
@@ -26,17 +26,17 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-test/.config \
 -no-shutdown \
 -no-acpi \
 -boot menu=on,strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x6 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x6"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sdfake","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,scsi=on,bus=pci.0,addr=0x4,drive=libvirt-2-format,id=virtio-disk0,bootindex=2 \
+-device '{"driver":"virtio-blk-pci","scsi":true,"bus":"pci.0","addr":"0x4","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":2}' \
 -blockdev '{"driver":"host_device","filename":"/dev/sdfake2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,scsi=on,bus=pci.0,addr=0x5,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","scsi":true,"bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,event_idx=off,netdev=hostnet0,id=net0,mac=52:54:00:e5:48:58,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","event_idx":false,"netdev":"hostnet0","id":"net0","mac":"52:54:00:e5:48:58","bus":"pci.0","addr":"0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
index 305e2cbc2f..cf53746120 100644
--- a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
@@ -26,32 +26,32 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device pcie-root-port,port=11,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
--device pcie-root-port,port=12,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
--device pcie-root-port,port=13,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
--device pcie-root-port,port=14,chassis=7,id=pci.7,bus=pcie.0,addr=0x1.0x6 \
--device pcie-root-port,port=15,chassis=8,id=pci.8,bus=pcie.0,addr=0x1.0x7 \
--device pcie-root-port,port=16,chassis=9,id=pci.9,bus=pcie.0,multifunction=on,addr=0x2 \
--device pcie-root-port,port=17,chassis=10,id=pci.10,bus=pcie.0,addr=0x2.0x1 \
--device pcie-root-port,port=18,chassis=11,id=pci.11,bus=pcie.0,addr=0x2.0x2 \
--device virtio-scsi-pci-non-transitional,id=scsi0,bus=pci.4,addr=0x0 \
--device virtio-serial-pci-non-transitional,id=virtio-serial0,bus=pci.3,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \
+-device '{"driver":"pcie-root-port","port":12,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x1.0x4"}' \
+-device '{"driver":"pcie-root-port","port":13,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x1.0x5"}' \
+-device '{"driver":"pcie-root-port","port":14,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x1.0x6"}' \
+-device '{"driver":"pcie-root-port","port":15,"chassis":8,"id":"pci.8","bus":"pcie.0","addr":"0x1.0x7"}' \
+-device '{"driver":"pcie-root-port","port":16,"chassis":9,"id":"pci.9","bus":"pcie.0","multifunction":true,"addr":"0x2"}' \
+-device '{"driver":"pcie-root-port","port":17,"chassis":10,"id":"pci.10","bus":"pcie.0","addr":"0x2.0x1"}' \
+-device '{"driver":"pcie-root-port","port":18,"chassis":11,"id":"pci.11","bus":"pcie.0","addr":"0x2.0x2"}' \
+-device '{"driver":"virtio-scsi-pci-non-transitional","id":"scsi0","bus":"pci.4","addr":"0x0"}' \
+-device '{"driver":"virtio-serial-pci-non-transitional","id":"virtio-serial0","bus":"pci.3","addr":"0x0"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci-non-transitional,bus=pci.5,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci-non-transitional","bus":"pci.5","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci-non-transitional,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.1,addr=0x0 \
+-device '{"driver":"virtio-9p-pci-non-transitional","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.1","addr":"0x0"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci-non-transitional,netdev=hostnet0,id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x0 \
--device virtio-input-host-pci-non-transitional,id=input0,evdev=/dev/input/event1234,bus=pci.9,addr=0x0 \
+-device '{"driver":"virtio-net-pci-non-transitional","netdev":"hostnet0","id":"net0","mac":"00:11:22:33:44:55","bus":"pci.2","addr":"0x0"}' \
+-device '{"driver":"virtio-input-host-pci-non-transitional","id":"input0","evdev":"/dev/input/event1234","bus":"pci.9","addr":"0x0"}' \
 -audiodev id=audio1,driver=none \
--device vhost-scsi-pci-non-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.6,addr=0x0 \
--device virtio-balloon-pci-non-transitional,id=balloon0,bus=pci.7,addr=0x0 \
+-device '{"driver":"vhost-scsi-pci-non-transitional","wwpn":"naa.5123456789abcde0","vhostfd":"3","id":"hostdev0","bus":"pci.6","addr":"0x0"}' \
+-device '{"driver":"virtio-balloon-pci-non-transitional","id":"balloon0","bus":"pci.7","addr":"0x0"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,bus=pci.8,addr=0x0 \
+-device '{"driver":"virtio-rng-pci-non-transitional","rng":"objrng0","id":"rng0","bus":"pci.8","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device vhost-vsock-pci-non-transitional,id=vsock0,guest-cid=4,vhostfd=6789,bus=pci.10,addr=0x0 \
+-device '{"driver":"vhost-vsock-pci-non-transitional","id":"vsock0","guest-cid":4,"vhostfd":"6789","bus":"pci.10","addr":"0x0"}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-controller-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-controller-ats.x86_64-latest.args
index 5ac1467fae..8738acd381 100644
--- a/tests/qemuxml2argvdata/virtio-options-controller-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-controller-ats.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,ats=on,id=scsi0,bus=pci.0,addr=0x2 \
--device virtio-scsi-pci,ats=off,id=scsi1,bus=pci.0,addr=0x3 \
--device virtio-serial-pci,ats=on,id=virtio-serial0,bus=pci.0,addr=0x4 \
--device virtio-serial-pci,ats=off,id=virtio-serial1,bus=pci.0,addr=0x5 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","ats":true,"id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-scsi-pci","ats":false,"id":"scsi1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-serial-pci","ats":true,"id":"virtio-serial0","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-serial-pci","ats":false,"id":"virtio-serial1","bus":"pci.0","addr":"0x5"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-controller-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-controller-iommu.x86_64-latest.args
index 3b48553883..8ae33d9c8c 100644
--- a/tests/qemuxml2argvdata/virtio-options-controller-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-controller-iommu.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,iommu_platform=on,id=scsi0,bus=pci.0,addr=0x2 \
--device virtio-scsi-pci,iommu_platform=off,id=scsi1,bus=pci.0,addr=0x3 \
--device virtio-serial-pci,iommu_platform=on,id=virtio-serial0,bus=pci.0,addr=0x4 \
--device virtio-serial-pci,iommu_platform=off,id=virtio-serial1,bus=pci.0,addr=0x5 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","iommu_platform":true,"id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-scsi-pci","iommu_platform":false,"id":"scsi1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-serial-pci","iommu_platform":true,"id":"virtio-serial0","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-serial-pci","iommu_platform":false,"id":"virtio-serial1","bus":"pci.0","addr":"0x5"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-controller-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-controller-packed.x86_64-latest.args
index 19a318c4fb..fbe579b1ea 100644
--- a/tests/qemuxml2argvdata/virtio-options-controller-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-controller-packed.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,packed=on,id=scsi0,bus=pci.0,addr=0x2 \
--device virtio-scsi-pci,packed=off,id=scsi1,bus=pci.0,addr=0x3 \
--device virtio-serial-pci,packed=on,id=virtio-serial0,bus=pci.0,addr=0x4 \
--device virtio-serial-pci,packed=off,id=virtio-serial1,bus=pci.0,addr=0x5 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","packed":true,"id":"scsi0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-scsi-pci","packed":false,"id":"scsi1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-serial-pci","packed":true,"id":"virtio-serial0","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-serial-pci","packed":false,"id":"virtio-serial1","bus":"pci.0","addr":"0x5"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-disk-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-disk-ats.x86_64-latest.args
index e5bb1962a6..5641054ce2 100644
--- a/tests/qemuxml2argvdata/virtio-options-disk-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-disk-ats.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,ats=on,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","ats":true,"bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,ats=off,bus=pci.0,addr=0x3,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","ats":false,"bus":"pci.0","addr":"0x3","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-disk-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-disk-iommu.x86_64-latest.args
index 381410c7ca..373c61e121 100644
--- a/tests/qemuxml2argvdata/virtio-options-disk-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-disk-iommu.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,iommu_platform=on,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","iommu_platform":true,"bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,iommu_platform=off,bus=pci.0,addr=0x3,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","iommu_platform":false,"bus":"pci.0","addr":"0x3","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-disk-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-disk-packed.x86_64-latest.args
index 0241ae85a5..1ace1dde87 100644
--- a/tests/qemuxml2argvdata/virtio-options-disk-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-disk-packed.x86_64-latest.args
@@ -26,14 +26,14 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img1","node-name":"libvirt-2-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-2-format","read-only":false,"driver":"raw","file":"libvirt-2-storage"}' \
--device virtio-blk-pci,packed=on,bus=pci.0,addr=0x2,drive=libvirt-2-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","packed":true,"bus":"pci.0","addr":"0x2","drive":"libvirt-2-format","id":"virtio-disk0","bootindex":1}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,packed=off,bus=pci.0,addr=0x3,drive=libvirt-1-format,id=virtio-disk1 \
+-device '{"driver":"virtio-blk-pci","packed":false,"bus":"pci.0","addr":"0x3","drive":"libvirt-1-format","id":"virtio-disk1"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-fs-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-fs-ats.x86_64-latest.args
index 6956c7bdc6..781818908c 100644
--- a/tests/qemuxml2argvdata/virtio-options-fs-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-fs-ats.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,ats=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","ats":true,"id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs1,path=/export/fs2 \
--device virtio-9p-pci,ats=off,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","ats":false,"id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs2","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-fs-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-fs-iommu.x86_64-latest.args
index d964d11f8a..5c71c9e72e 100644
--- a/tests/qemuxml2argvdata/virtio-options-fs-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-fs-iommu.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,iommu_platform=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","iommu_platform":true,"id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs1,path=/export/fs2 \
--device virtio-9p-pci,iommu_platform=off,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","iommu_platform":false,"id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs2","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-fs-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-fs-packed.x86_64-latest.args
index 5eac96bead..39a6bff451 100644
--- a/tests/qemuxml2argvdata/virtio-options-fs-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-fs-packed.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,packed=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-9p-pci","packed":true,"id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.0","addr":"0x2"}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs1,path=/export/fs2 \
--device virtio-9p-pci,packed=off,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","packed":false,"id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs2","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-input-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-input-ats.x86_64-latest.args
index 5997192c91..078ecf1bd8 100644
--- a/tests/qemuxml2argvdata/virtio-options-input-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-input-ats.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-mouse-pci,ats=on,id=input0,bus=pci.0,addr=0x2 \
--device virtio-keyboard-pci,ats=off,id=input1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-mouse-pci","ats":true,"id":"input0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-keyboard-pci","ats":false,"id":"input1","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-input-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-input-iommu.x86_64-latest.args
index a956781626..f97c5041c9 100644
--- a/tests/qemuxml2argvdata/virtio-options-input-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-input-iommu.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-mouse-pci,iommu_platform=on,id=input0,bus=pci.0,addr=0x2 \
--device virtio-keyboard-pci,iommu_platform=off,id=input1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-mouse-pci","iommu_platform":true,"id":"input0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-keyboard-pci","iommu_platform":false,"id":"input1","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-input-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-input-packed.x86_64-latest.args
index 8a1be03de2..b2e57eaa40 100644
--- a/tests/qemuxml2argvdata/virtio-options-input-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-input-packed.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-mouse-pci,packed=on,id=input0,bus=pci.0,addr=0x2 \
--device virtio-keyboard-pci,packed=off,id=input1,bus=pci.0,addr=0x3 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-mouse-pci","packed":true,"id":"input0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-keyboard-pci","packed":false,"id":"input1","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-memballoon-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-memballoon-ats.x86_64-latest.args
index 184b84ea39..ea8c351087 100644
--- a/tests/qemuxml2argvdata/virtio-options-memballoon-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-memballoon-ats.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,ats=on,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","ats":true,"id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-memballoon-freepage-reporting.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-memballoon-freepage-reporting.x86_64-latest.args
index e6ac1e27f2..dd15ffd34a 100644
--- a/tests/qemuxml2argvdata/virtio-options-memballoon-freepage-reporting.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-memballoon-freepage-reporting.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,free-page-reporting=on,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","free-page-reporting":true,"bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-memballoon-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-memballoon-iommu.x86_64-latest.args
index 2b08aeee01..d3edca0fde 100644
--- a/tests/qemuxml2argvdata/virtio-options-memballoon-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-memballoon-iommu.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,iommu_platform=on,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","iommu_platform":true,"id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-memballoon-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-memballoon-packed.x86_64-latest.args
index 865e81eb21..85d91105a0 100644
--- a/tests/qemuxml2argvdata/virtio-options-memballoon-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-memballoon-packed.x86_64-latest.args
@@ -26,8 +26,8 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,packed=on,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","packed":true,"id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-net-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-net-ats.x86_64-latest.args
index 8ec2387405..e0b8febae0 100644
--- a/tests/qemuxml2argvdata/virtio-options-net-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-net-ats.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,ats=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","ats":true,"netdev":"hostnet0","id":"net0","mac":"52:54:56:58:5a:5c","bus":"pci.0","addr":"0x2"}' \
 -netdev user,id=hostnet1 \
--device virtio-net-pci,ats=off,netdev=hostnet1,id=net1,mac=62:64:66:68:6a:6c,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-net-pci","ats":false,"netdev":"hostnet1","id":"net1","mac":"62:64:66:68:6a:6c","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-net-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-net-iommu.x86_64-latest.args
index 76a7944029..4772a2dcc8 100644
--- a/tests/qemuxml2argvdata/virtio-options-net-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-net-iommu.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,iommu_platform=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","iommu_platform":true,"netdev":"hostnet0","id":"net0","mac":"52:54:56:58:5a:5c","bus":"pci.0","addr":"0x2"}' \
 -netdev user,id=hostnet1 \
--device virtio-net-pci,iommu_platform=off,netdev=hostnet1,id=net1,mac=62:64:66:68:6a:6c,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-net-pci","iommu_platform":false,"netdev":"hostnet1","id":"net1","mac":"62:64:66:68:6a:6c","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-net-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-net-packed.x86_64-latest.args
index b8d7a971fa..d9e702a919 100644
--- a/tests/qemuxml2argvdata/virtio-options-net-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-net-packed.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,packed=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","packed":true,"netdev":"hostnet0","id":"net0","mac":"52:54:56:58:5a:5c","bus":"pci.0","addr":"0x2"}' \
 -netdev user,id=hostnet1 \
--device virtio-net-pci,packed=off,netdev=hostnet1,id=net1,mac=62:64:66:68:6a:6c,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-net-pci","packed":false,"netdev":"hostnet1","id":"net1","mac":"62:64:66:68:6a:6c","bus":"pci.0","addr":"0x3"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-rng-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-rng-ats.x86_64-latest.args
index 936da98242..c023cee6fb 100644
--- a/tests/qemuxml2argvdata/virtio-options-rng-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-rng-ats.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/random"}' \
--device virtio-rng-pci,ats=on,rng=objrng0,id=rng0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-rng-pci","ats":true,"rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"rng-random","id":"objrng1","filename":"/dev/random"}' \
--device virtio-rng-pci,ats=off,rng=objrng1,id=rng1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-rng-pci","ats":false,"rng":"objrng1","id":"rng1","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-rng-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-rng-iommu.x86_64-latest.args
index ff52853bee..c1b252bacf 100644
--- a/tests/qemuxml2argvdata/virtio-options-rng-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-rng-iommu.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/random"}' \
--device virtio-rng-pci,iommu_platform=on,rng=objrng0,id=rng0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-rng-pci","iommu_platform":true,"rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"rng-random","id":"objrng1","filename":"/dev/random"}' \
--device virtio-rng-pci,iommu_platform=off,rng=objrng1,id=rng1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-rng-pci","iommu_platform":false,"rng":"objrng1","id":"rng1","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-rng-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-rng-packed.x86_64-latest.args
index 4c1a727ff8..7c4aa9444b 100644
--- a/tests/qemuxml2argvdata/virtio-options-rng-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-rng-packed.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/random"}' \
--device virtio-rng-pci,packed=on,rng=objrng0,id=rng0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-rng-pci","packed":true,"rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"rng-random","id":"objrng1","filename":"/dev/random"}' \
--device virtio-rng-pci,packed=off,rng=objrng1,id=rng1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-rng-pci","packed":false,"rng":"objrng1","id":"rng1","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-video-ats.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-video-ats.x86_64-latest.args
index b2a944bb34..0c9d65c1e9 100644
--- a/tests/qemuxml2argvdata/virtio-options-video-ats.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-video-ats.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
 -chardev socket,id=chr-vu-video1,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device vhost-user-gpu-pci,ats=off,id=video1,max_outputs=1,chardev=chr-vu-video1,bus=pci.0,addr=0x3 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vhost-user-gpu-pci","ats":false,"id":"video1","max_outputs":1,"chardev":"chr-vu-video1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-video-iommu.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-video-iommu.x86_64-latest.args
index 23808318cc..b49d81d5e5 100644
--- a/tests/qemuxml2argvdata/virtio-options-video-iommu.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-video-iommu.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
 -chardev socket,id=chr-vu-video1,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device vhost-user-gpu-pci,iommu_platform=off,id=video1,max_outputs=1,chardev=chr-vu-video1,bus=pci.0,addr=0x3 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vhost-user-gpu-pci","iommu_platform":false,"id":"video1","max_outputs":1,"chardev":"chr-vu-video1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options-video-packed.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options-video-packed.x86_64-latest.args
index f431df9062..d1f15167bb 100644
--- a/tests/qemuxml2argvdata/virtio-options-video-packed.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options-video-packed.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
 -chardev socket,id=chr-vu-video1,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device vhost-user-gpu-pci,packed=off,id=video1,max_outputs=1,chardev=chr-vu-video1,bus=pci.0,addr=0x3 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"vhost-user-gpu-pci","packed":false,"id":"video1","max_outputs":1,"chardev":"chr-vu-video1","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x4"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
index 6a55134ee8..78d34b77df 100644
--- a/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
@@ -26,27 +26,27 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=scsi0,bus=pci.0,addr=0x8 \
--device virtio-serial-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=virtio-serial0,bus=pci.0,addr=0x9 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
+-device '{"driver":"virtio-scsi-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"scsi0","bus":"pci.0","addr":"0x8"}' \
+-device '{"driver":"virtio-serial-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"virtio-serial0","bus":"pci.0","addr":"0x9"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,bus=pci.0,addr=0xa,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"bus":"pci.0","addr":"0xa","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-9p-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.0","addr":"0x3"}' \
 -fsdev local,security_model=mapped,writeout=immediate,id=fsdev-fs1,path=/export/fs2 \
--device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x4 \
+-device '{"driver":"virtio-9p-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"fs1","fsdev":"fsdev-fs1","mount_tag":"fs2","bus":"pci.0","addr":"0x4"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x6 \
--device virtio-mouse-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input0,bus=pci.0,addr=0xe \
--device virtio-keyboard-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input1,bus=pci.0,addr=0x10 \
--device virtio-tablet-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input2,bus=pci.0,addr=0x11 \
--device virtio-input-host-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input3,evdev=/dev/input/event1234,bus=pci.0,addr=0x12 \
+-device '{"driver":"virtio-net-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"netdev":"hostnet0","id":"net0","mac":"52:54:56:58:5a:5c","bus":"pci.0","addr":"0x6"}' \
+-device '{"driver":"virtio-mouse-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"input0","bus":"pci.0","addr":"0xe"}' \
+-device '{"driver":"virtio-keyboard-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"input1","bus":"pci.0","addr":"0x10"}' \
+-device '{"driver":"virtio-tablet-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"input2","bus":"pci.0","addr":"0x11"}' \
+-device '{"driver":"virtio-input-host-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"input3","evdev":"/dev/input/event1234","bus":"pci.0","addr":"0x12"}' \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
--device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=balloon0,bus=pci.0,addr=0xc \
+-device '{"driver":"vhost-user-vga","id":"video0","max_outputs":1,"chardev":"chr-vu-video0","bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"id":"balloon0","bus":"pci.0","addr":"0xc"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/random"}' \
--device virtio-rng-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,rng=objrng0,id=rng0,bus=pci.0,addr=0xd \
+-device '{"driver":"virtio-rng-pci","iommu_platform":true,"ats":true,"packed":true,"page-per-vq":true,"rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0xd"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-rng-builtin.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-rng-builtin.x86_64-latest.args
index 0edb65a58a..d7bcb61eec 100644
--- a/tests/qemuxml2argvdata/virtio-rng-builtin.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-rng-builtin.x86_64-latest.args
@@ -26,10 +26,10 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -object '{"qom-type":"rng-builtin","id":"objrng0"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-rng-egd-unix.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-rng-egd-unix.x86_64-latest.args
index 36348e00e1..91489bb12f 100644
--- a/tests/qemuxml2argvdata/virtio-rng-egd-unix.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-rng-egd-unix.x86_64-latest.args
@@ -26,11 +26,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -chardev socket,id=charrng0,fd=1729,server=on,wait=off \
 -object '{"qom-type":"rng-egd","id":"objrng0","chardev":"charrng0"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
index 8c2dbfebd8..d2a5f38662 100644
--- a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
@@ -26,24 +26,24 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
--device pcie-root-port,port=9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
--device virtio-scsi-pci-transitional,id=scsi0,bus=pci.2,addr=0x4 \
--device virtio-serial-pci-transitional,id=virtio-serial0,bus=pci.2,addr=0x3 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-pci-bridge","id":"pci.2","bus":"pci.1","addr":"0x0"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"virtio-scsi-pci-transitional","id":"scsi0","bus":"pci.2","addr":"0x4"}' \
+-device '{"driver":"virtio-serial-pci-transitional","id":"virtio-serial0","bus":"pci.2","addr":"0x3"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci-transitional,bus=pci.2,addr=0x5,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci-transitional","bus":"pci.2","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci-transitional,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.2,addr=0x1 \
+-device '{"driver":"virtio-9p-pci-transitional","id":"fs0","fsdev":"fsdev-fs0","mount_tag":"fs1","bus":"pci.2","addr":"0x1"}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci-transitional,netdev=hostnet0,id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x2 \
--device virtio-input-host-pci-transitional,id=input0,evdev=/dev/input/event1234,bus=pci.2,addr=0x9 \
+-device '{"driver":"virtio-net-pci-transitional","netdev":"hostnet0","id":"net0","mac":"00:11:22:33:44:55","bus":"pci.2","addr":"0x2"}' \
+-device '{"driver":"virtio-input-host-pci-transitional","id":"input0","evdev":"/dev/input/event1234","bus":"pci.2","addr":"0x9"}' \
 -audiodev id=audio1,driver=none \
--device vhost-scsi-pci-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.2,addr=0x6 \
--device virtio-balloon-pci-transitional,id=balloon0,bus=pci.2,addr=0x7 \
+-device '{"driver":"vhost-scsi-pci-transitional","wwpn":"naa.5123456789abcde0","vhostfd":"3","id":"hostdev0","bus":"pci.2","addr":"0x6"}' \
+-device '{"driver":"virtio-balloon-pci-transitional","id":"balloon0","bus":"pci.2","addr":"0x7"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci-transitional,rng=objrng0,id=rng0,bus=pci.2,addr=0x8 \
+-device '{"driver":"virtio-rng-pci-transitional","rng":"objrng0","id":"rng0","bus":"pci.2","addr":"0x8"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
--device vhost-vsock-pci-transitional,id=vsock0,guest-cid=4,vhostfd=6789,bus=pci.2,addr=0xa \
+-device '{"driver":"vhost-vsock-pci-transitional","id":"vsock0","guest-cid":4,"vhostfd":"6789","bus":"pci.2","addr":"0xa"}' \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/watchdog-device.x86_64-latest.args b/tests/qemuxml2argvdata/watchdog-device.x86_64-latest.args
index 78ac8227c3..70a9da5f37 100644
--- a/tests/qemuxml2argvdata/watchdog-device.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/watchdog-device.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device i6300esb,id=watchdog0,bus=pci.0,addr=0x3 \
+-device '{"driver":"i6300esb","id":"watchdog0","bus":"pci.0","addr":"0x3"}' \
 -watchdog-action poweroff \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/watchdog-dump.x86_64-latest.args b/tests/qemuxml2argvdata/watchdog-dump.x86_64-latest.args
index 439998dcd8..2e7324dd9a 100644
--- a/tests/qemuxml2argvdata/watchdog-dump.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/watchdog-dump.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device ib700,id=watchdog0 \
+-device '{"driver":"ib700","id":"watchdog0"}' \
 -watchdog-action pause \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/watchdog-injectnmi.x86_64-latest.args b/tests/qemuxml2argvdata/watchdog-injectnmi.x86_64-latest.args
index 371e4c0162..d74b3576a4 100644
--- a/tests/qemuxml2argvdata/watchdog-injectnmi.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/watchdog-injectnmi.x86_64-latest.args
@@ -26,13 +26,13 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device ib700,id=watchdog0 \
+-device '{"driver":"ib700","id":"watchdog0"}' \
 -watchdog-action inject-nmi \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x2"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/watchdog.x86_64-latest.args b/tests/qemuxml2argvdata/watchdog.x86_64-latest.args
index 76a845c60f..d1ed230a00 100644
--- a/tests/qemuxml2argvdata/watchdog.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/watchdog.x86_64-latest.args
@@ -26,12 +26,12 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-shutdown \
 -no-acpi \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device ide-hd,bus=ide.0,unit=0,drive=libvirt-1-format,id=ide0-0-0,bootindex=1 \
+-device '{"driver":"ide-hd","bus":"ide.0","unit":0,"drive":"libvirt-1-format","id":"ide0-0-0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device ib700,id=watchdog0 \
+-device '{"driver":"ib700","id":"watchdog0"}' \
 -watchdog-action poweroff \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-pc-4.2.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-pc-4.2.x86_64-latest.args
index a50eb6c286..9a4342153a 100644
--- a/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-pc-4.2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-pc-4.2.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-q35-4.2.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-q35-4.2.x86_64-latest.args
index c1501e6c0a..406a383f9b 100644
--- a/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-q35-4.2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-default-cpu-kvm-q35-4.2.x86_64-latest.args
@@ -25,15 +25,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device pcie-root-port,port=11,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.2,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.2","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.3,addr=0x0 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.3","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-pc-4.2.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-pc-4.2.x86_64-latest.args
index 2718c65119..58477ff33e 100644
--- a/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-pc-4.2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-pc-4.2.x86_64-latest.args
@@ -25,11 +25,11 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device '{"driver":"piix3-usb-uhci","id":"usb","bus":"pci.0","addr":"0x1.0x2"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x2,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x2","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x3"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-q35-4.2.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-q35-4.2.x86_64-latest.args
index d4f7980e5d..60e415ffbd 100644
--- a/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-q35-4.2.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-default-cpu-tcg-q35-4.2.x86_64-latest.args
@@ -25,15 +25,15 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -rtc base=utc \
 -no-shutdown \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device pcie-root-port,port=11,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
--device qemu-xhci,id=usb,bus=pci.1,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \
+-device '{"driver":"qemu-xhci","id":"usb","bus":"pci.1","addr":"0x0"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.2,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.2","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.3,addr=0x0 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.3","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-pc-graphics.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-pc-graphics.x86_64-latest.args
index cff8cb3a7e..e3048603ba 100644
--- a/tests/qemuxml2argvdata/x86_64-pc-graphics.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-pc-graphics.x86_64-latest.args
@@ -28,23 +28,23 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -global PIIX4_PM.disable_s3=1 \
 -global PIIX4_PM.disable_s4=1 \
 -boot strict=on \
--device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.0,addr=0x4 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 \
+-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.0","addr":"0x4"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x5"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x6,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x6","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:4c:e3:86,bus=pci.0,addr=0x3 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:4c:e3:86","bus":"pci.0","addr":"0x3"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
--device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
--device usb-tablet,id=input0,bus=usb.0,port=1 \
+-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
+-device '{"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pci.0","addr":"0x2"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x7"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x8 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x8"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-pc-headless.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-pc-headless.x86_64-latest.args
index aaa2e313cf..e93b5f9100 100644
--- a/tests/qemuxml2argvdata/x86_64-pc-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-pc-headless.x86_64-latest.args
@@ -29,20 +29,20 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -global PIIX4_PM.disable_s3=1 \
 -global PIIX4_PM.disable_s4=1 \
 -boot strict=on \
--device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.0,addr=0x3 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 \
+-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.0","addr":"0x3"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.0","addr":"0x4"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.0,addr=0x5,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.0","addr":"0x5","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:09:a4:37,bus=pci.0,addr=0x2 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:09:a4:37","bus":"pci.0","addr":"0x2"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
--device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
+-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x6 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.0","addr":"0x6"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0x7 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.0","addr":"0x7"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-q35-graphics.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-q35-graphics.x86_64-latest.args
index 4ba4567e86..ab3f5091dd 100644
--- a/tests/qemuxml2argvdata/x86_64-q35-graphics.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-q35-graphics.x86_64-latest.args
@@ -28,30 +28,30 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -global ICH9-LPC.disable_s3=1 \
 -global ICH9-LPC.disable_s4=1 \
 -boot strict=on \
--device pcie-root-port,port=16,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x2 \
--device pcie-root-port,port=17,chassis=2,id=pci.2,bus=pcie.0,addr=0x2.0x1 \
--device pcie-root-port,port=18,chassis=3,id=pci.3,bus=pcie.0,addr=0x2.0x2 \
--device pcie-root-port,port=19,chassis=4,id=pci.4,bus=pcie.0,addr=0x2.0x3 \
--device pcie-root-port,port=20,chassis=5,id=pci.5,bus=pcie.0,addr=0x2.0x4 \
--device pcie-root-port,port=21,chassis=6,id=pci.6,bus=pcie.0,addr=0x2.0x5 \
--device pcie-root-port,port=22,chassis=7,id=pci.7,bus=pcie.0,addr=0x2.0x6 \
--device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"}' \
+-device '{"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"}' \
+-device '{"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"}' \
+-device '{"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"}' \
+-device '{"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"}' \
+-device '{"driver":"pcie-root-port","port":21,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x2.0x5"}' \
+-device '{"driver":"pcie-root-port","port":22,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x2.0x6"}' \
+-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.3","addr":"0x0"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.4","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:d2:70:0b,bus=pci.1,addr=0x0 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:d2:70:0b","bus":"pci.1","addr":"0x0"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
--device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
--device usb-tablet,id=input0,bus=usb.0,port=1 \
+-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
+-device '{"driver":"usb-tablet","id":"input0","bus":"usb.0","port":"1"}' \
 -audiodev id=audio1,driver=none \
 -vnc 127.0.0.1:0,audiodev=audio1 \
--device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pcie.0,addr=0x1 \
--device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 \
+-device '{"driver":"qxl-vga","id":"video0","ram_size":67108864,"vram_size":67108864,"vram64_size_mb":0,"vgamem_mb":16,"max_outputs":1,"bus":"pcie.0","addr":"0x1"}' \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.5","addr":"0x0"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.6","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/x86_64-q35-headless.x86_64-latest.args b/tests/qemuxml2argvdata/x86_64-q35-headless.x86_64-latest.args
index 26fe95eac3..9801615c34 100644
--- a/tests/qemuxml2argvdata/x86_64-q35-headless.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/x86_64-q35-headless.x86_64-latest.args
@@ -29,27 +29,27 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
 -global ICH9-LPC.disable_s3=1 \
 -global ICH9-LPC.disable_s4=1 \
 -boot strict=on \
--device pcie-root-port,port=8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,addr=0x1 \
--device pcie-root-port,port=9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
--device pcie-root-port,port=10,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
--device pcie-root-port,port=11,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
--device pcie-root-port,port=12,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
--device pcie-root-port,port=13,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
--device pcie-root-port,port=14,chassis=7,id=pci.7,bus=pcie.0,addr=0x1.0x6 \
--device qemu-xhci,p2=15,p3=15,id=usb,bus=pci.2,addr=0x0 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.3,addr=0x0 \
+-device '{"driver":"pcie-root-port","port":8,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x1"}' \
+-device '{"driver":"pcie-root-port","port":9,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x1.0x1"}' \
+-device '{"driver":"pcie-root-port","port":10,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x1.0x2"}' \
+-device '{"driver":"pcie-root-port","port":11,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x1.0x3"}' \
+-device '{"driver":"pcie-root-port","port":12,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x1.0x4"}' \
+-device '{"driver":"pcie-root-port","port":13,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x1.0x5"}' \
+-device '{"driver":"pcie-root-port","port":14,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x1.0x6"}' \
+-device '{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"}' \
+-device '{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.3","addr":"0x0"}' \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/guest.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,bus=pci.4,addr=0x0,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device '{"driver":"virtio-blk-pci","bus":"pci.4","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}' \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:09:a4:37,bus=pci.1,addr=0x0 \
+-device '{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:09:a4:37","bus":"pci.1","addr":"0x0"}' \
 -chardev pty,id=charserial0 \
--device isa-serial,chardev=charserial0,id=serial0 \
+-device '{"driver":"isa-serial","chardev":"charserial0","id":"serial0"}' \
 -chardev socket,id=charchannel0,fd=1729,server=on,wait=off \
--device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=org.qemu.guest_agent.0 \
+-device '{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}' \
 -audiodev id=audio1,driver=none \
--device virtio-balloon-pci,id=balloon0,bus=pci.5,addr=0x0 \
+-device '{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.5","addr":"0x0"}' \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.6,addr=0x0 \
+-device '{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.6","addr":"0x0"}' \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
-- 
2.31.1




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