[libvirt] [PATCH v1 2/7] qemu: Add support for virtio-gpu-ccw device
John Ferlan
jferlan at redhat.com
Fri Mar 16 13:38:54 UTC 2018
On 03/08/2018 11:07 AM, Farhan Ali wrote:
> QEMU on S390 (since v2.11) can support the virtio-gpu-ccw device,
> so on S390 assign CCW address for a video device.
>
> Also introduce a new capability for the virtio-gpu-ccw
> device.
>
> Signed-off-by: Farhan Ali <alifm at linux.vnet.ibm.com>
> Signed-off-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
> ---
> docs/formatdomain.html.in | 3 +
> src/qemu/qemu_capabilities.c | 5 ++
> src/qemu/qemu_capabilities.h | 1 +
> src/qemu/qemu_command.c | 18 ++++-
> src/qemu/qemu_domain.c | 2 +-
> src/qemu/qemu_domain_address.c | 8 +++
> src/qemu/qemu_process.c | 5 +-
> .../qemucapabilitiesdata/caps_2.11.0.s390x.replies | 83 +++++++++++++++++++---
> tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml | 3 +-
> 9 files changed, 114 insertions(+), 14 deletions(-)
>
First off - other upstream changes has caused this to not be able to
apply w/ git am -3 - so once patch1 is pushed, you'll need to rework and
repost the series (hopefully this time you won't have the strange split
with a CC address having "--dry-run" appended to an email ;-)
Since I cannot compile this one - I'll just be able to go through
visually and note a few things... Primarily though - this particular
patch should be split up a bit more. Separate out the capabilities into
their own separate "capabilities" patch and the second patch becomes a
"functionality" patch.
> diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
> index 6fd2189..0908709 100644
> --- a/docs/formatdomain.html.in
> +++ b/docs/formatdomain.html.in
> @@ -6484,6 +6484,9 @@ qemu-kvm -net nic,model=? /dev/null
> <dd>
> The optional <code>address</code> sub-element can be used to
> tie the video device to a particular PCI slot.
> + On S390, <code>address</code> can be used to provide the
> + CCW address for the video device (<span class="since">
> + since 4.2.0</span>).
> </dd>
>
> <dt><code>driver</code></dt>
... The above would go with the "functionality" patch and the next few
with a "capability" patch...
> diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
> index b5eb8cf..9db4c31 100644
> --- a/src/qemu/qemu_capabilities.c
> +++ b/src/qemu/qemu_capabilities.c
> @@ -459,6 +459,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
> "pl011",
> "machine.pseries.max-cpu-compat",
> "dump-completed",
> + "virtio-gpu-ccw",
> );
>
>
> @@ -1694,6 +1695,7 @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
> { "sclplmconsole", QEMU_CAPS_DEVICE_SCLPLMCONSOLE },
> { "isa-serial", QEMU_CAPS_DEVICE_ISA_SERIAL },
> { "pl011", QEMU_CAPS_DEVICE_PL011 },
> + { "virtio-gpu-ccw", QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW },
> };
>
> static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioBalloon[] = {
> @@ -1932,6 +1934,9 @@ static struct virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = {
> { "spapr-pci-host-bridge", virQEMUCapsObjectPropsSpaprPCIHostBridge,
> ARRAY_CARDINALITY(virQEMUCapsObjectPropsSpaprPCIHostBridge),
> QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE },
> + { "virtio-gpu-ccw", virQEMUCapsObjectPropsVirtioGpu,
> + ARRAY_CARDINALITY(virQEMUCapsObjectPropsVirtioGpu),
> + QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW },
> };
>
> struct virQEMUCapsPropTypeObjects {
> diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
> index c2ec2be..b4852e5 100644
> --- a/src/qemu/qemu_capabilities.h
> +++ b/src/qemu/qemu_capabilities.h
> @@ -444,6 +444,7 @@ typedef enum {
> QEMU_CAPS_DEVICE_PL011, /* -device pl011 (not user-instantiable) */
> QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT, /* -machine pseries,max-cpu-compat= */
> QEMU_CAPS_DUMP_COMPLETED, /* DUMP_COMPLETED event */
> + QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW, /* -device virtio-gpu-ccw */
>
> QEMU_CAPS_LAST /* this must always be the last item */
> } virQEMUCapsFlags;
... Above here with the "capability" patch and below with the
"functionality" patch...
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index fa0aa5d..ba63670 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -132,7 +132,7 @@ VIR_ENUM_IMPL(qemuDeviceVideoSecondary, VIR_DOMAIN_VIDEO_TYPE_LAST,
> "", /* don't support vbox */
> "qxl",
> "", /* don't support parallels */
> - "virtio-gpu-pci",
> + "virtio-gpu",
> "" /* don't support gop */);
>
> VIR_ENUM_DECL(qemuSoundCodec)
> @@ -4262,7 +4262,21 @@ qemuBuildDeviceVideoStr(const virDomainDef *def,
> goto error;
> }
>
> - virBufferAsprintf(&buf, "%s,id=%s", model, video->info.alias);
> + if (STREQ(model, "virtio-gpu")) {
Rather than STREQ comparison perhaps:
if (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO) {
since that's what derives "virtio-gpu" for model anyway.
> + switch (video->info.type) {
> + case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI:
> + virBufferAsprintf(&buf, "%s-pci", model);
> + break;
> +
> + case VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW:
> + virBufferAsprintf(&buf, "%s-ccw", model);
> + break;
> + }
Let's not use a switch here - as that implies there could be more than
just two values in the '.type' field... I'd go with:
if (video->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW)
virBufferAsprintf(&buf, "%s-ccw", model);
else
virBufferAsprintf(&buf, "%s-pci", model);
> + } else {
> + virBufferAsprintf(&buf, "%s", model);
> + }
> +
> + virBufferAsprintf(&buf, ",id=%s", video->info.alias);
>
> if (video->accel && video->accel->accel3d == VIR_TRISTATE_SWITCH_ON) {
> virBufferAsprintf(&buf, ",virgl=%s",
> diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
> index ee02ecd..b47b4d1 100644
> --- a/src/qemu/qemu_domain.c
> +++ b/src/qemu/qemu_domain.c
> @@ -5156,7 +5156,7 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
> if (dev->data.video->type == VIR_DOMAIN_VIDEO_TYPE_DEFAULT) {
> if ARCH_IS_PPC64(def->os.arch)
> dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_VGA;
> - else if (qemuDomainIsVirt(def))
> + else if (qemuDomainIsVirt(def) || ARCH_IS_S390(def->os.arch))
> dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_VIRTIO;
> else
> dev->data.video->type = VIR_DOMAIN_VIDEO_TYPE_CIRRUS;
> diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c
> index ae49cf2..49a293e 100644
> --- a/src/qemu/qemu_domain_address.c
> +++ b/src/qemu/qemu_domain_address.c
> @@ -308,6 +308,14 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def,
> }
> }
>
There's a comment at the top of the function that could add "video" to
the list as well...
> + for (i = 0; i < def->nvideos; i++) {
> + virDomainVideoDefPtr video = def->videos[i];
> +
> + if (video->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE &&
> + video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO)
> + video->info.type = type;
> + }
> +
> for (i = 0; i < def->ninputs; i++) {
> if (def->inputs[i]->bus == VIR_DOMAIN_DISK_BUS_VIRTIO &&
> def->inputs[i]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
> diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
> index 57c06c7..1afb71f 100644
> --- a/src/qemu/qemu_process.c
> +++ b/src/qemu/qemu_process.c
> @@ -4778,7 +4778,10 @@ qemuProcessStartValidateVideo(virDomainObjPtr vm,
> (video->type == VIR_DOMAIN_VIDEO_TYPE_QXL &&
> !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_QXL)) ||
> (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO &&
> - !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU))) {
> + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU)) ||
> + (video->type == VIR_DOMAIN_VIDEO_TYPE_VIRTIO &&
> + video->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW &&
> + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_GPU_CCW))) {
> virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
> _("this QEMU does not support '%s' video device"),
> virDomainVideoTypeToString(video->type));
... The rest would go with the capabilities patch....
> diff --git a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.replies b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.replies
> index 6768937..53c4804 100644
> --- a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.replies
> +++ b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.replies
> @@ -3515,6 +3515,71 @@
> {
> "return": [
> {
> + "name": "notify_on_empty",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "ioeventfd",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "any_layout",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "devno",
> + "description": "Identifier of an I/O device in the channel subsystem, example: fe.1.23ab",
> + "type": "str"
> + },
> + {
> + "name": "indirect_desc",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "event_idx",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "virtio-backend",
> + "type": "child<virtio-gpu-device>"
> + },
> + {
> + "name": "yres",
> + "type": "uint32"
> + },
> + {
> + "name": "xres",
> + "type": "uint32"
> + },
> + {
> + "name": "iommu_platform",
> + "description": "on/off",
> + "type": "bool"
> + },
> + {
> + "name": "max_outputs",
> + "type": "uint32"
> + },
> + {
> + "name": "max_hostmem",
> + "type": "size"
> + },
> + {
> + "name": "max_revision",
> + "type": "uint32"
> + }
> + ],
> + "id": "libvirt-41"
> +}
> +
> +{
> + "return": [
> + {
> "hotpluggable-cpus": true,
> "name": "s390-ccw-virtio-2.7",
> "cpu-max": 248
> @@ -3562,7 +3627,7 @@
> "cpu-max": 248
> }
> ],
> - "id": "libvirt-41"
> + "id": "libvirt-42"
> }
>
> {
> @@ -4096,20 +4161,20 @@
> "migration-safe": true
> }
> ],
> - "id": "libvirt-42"
> + "id": "libvirt-43"
> }
>
> {
> "return": [
> ],
> - "id": "libvirt-43"
> + "id": "libvirt-44"
> }
>
> {
> "return": [
> "emulator"
> ],
> - "id": "libvirt-44"
> + "id": "libvirt-45"
> }
>
> {
> @@ -5230,7 +5295,7 @@
> "option": "drive"
> }
> ],
> - "id": "libvirt-45"
> + "id": "libvirt-46"
> }
>
> {
> @@ -5288,7 +5353,7 @@
> "capability": "x-multifd"
> }
> ],
> - "id": "libvirt-46"
> + "id": "libvirt-47"
> }
>
> {
> @@ -15156,7 +15221,7 @@
> "meta-type": "object"
> }
> ],
> - "id": "libvirt-47"
> + "id": "libvirt-48"
> }
>
> {
> @@ -15195,11 +15260,11 @@
> }
> }
> },
> - "id": "libvirt-48"
> + "id": "libvirt-49"
> }
>
> {
> - "id": "libvirt-49",
> + "id": "libvirt-50",
> "error": {
> "class": "GenericError",
> "desc": "Property '.migratable' not found"
> diff --git a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> index f7f102f..ec5c396 100644
> --- a/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> +++ b/tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml
> @@ -146,9 +146,10 @@
> <flag name='disk-share-rw'/>
> <flag name='iscsi.password-secret'/>
> <flag name='dump-completed'/>
> + <flag name='virtio-gpu-ccw'/>
> <version>2011000</version>
> <kvmVersion>0</kvmVersion>
> - <microcodeVersion>341724</microcodeVersion>
> + <microcodeVersion>342885</microcodeVersion>
<sigh> - I assume this is because someone updated something after the
original pull of the 2.11 caps...
You used the VIR_TEST_REGENERATE_OUTPUT=1 to create too, right?
John
> <package></package>
> <arch>s390x</arch>
> <hostCPU type='kvm' model='z14-base' migratability='no'>
>
More information about the libvir-list
mailing list