[libvirt] [PATCHv3 14/14] qemu: format virtio-related options on the command line
Ján Tomko
jtomko at redhat.com
Wed Jun 7 19:25:04 UTC 2017
Format iommu_platform= and ats= for virtio devices.
https://bugzilla.redhat.com/show_bug.cgi?id=1283251
---
src/qemu/qemu_capabilities.c | 12 ++++-
src/qemu/qemu_capabilities.h | 2 +
src/qemu/qemu_command.c | 58 ++++++++++++++++++++++
tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 2 +
.../qemuxml2argv-virtio-options.args | 37 ++++++++------
tests/qemuxml2argvtest.c | 4 +-
6 files changed, 98 insertions(+), 17 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 7da0988..c0c39bd 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -374,6 +374,8 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
"intel-iommu.eim",
"intel-iommu.device-iotlb", /* 260 */
+ "virtio.iommu_platform",
+ "virtio.ats",
);
@@ -1853,7 +1855,7 @@ struct virQEMUCapsPropTypeObjects {
const char **objects;
};
-static const char *virQEMUCapsVirtioPCIDisableLegacyObjects[] = {
+static const char *virQEMUCapsVirtioPCIObjects[] = {
"virtio-balloon-pci",
"virtio-blk-pci",
"virtio-scsi-pci",
@@ -1872,7 +1874,13 @@ static const char *virQEMUCapsVirtioPCIDisableLegacyObjects[] = {
static struct virQEMUCapsPropTypeObjects virQEMUCapsPropObjects[] = {
{ "disable-legacy",
QEMU_CAPS_VIRTIO_PCI_DISABLE_LEGACY,
- virQEMUCapsVirtioPCIDisableLegacyObjects }
+ virQEMUCapsVirtioPCIObjects },
+ { "iommu_platform",
+ QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM,
+ virQEMUCapsVirtioPCIObjects },
+ { "ats",
+ QEMU_CAPS_VIRTIO_PCI_ATS,
+ virQEMUCapsVirtioPCIObjects },
};
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 275bbcf..e57cae9 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -413,6 +413,8 @@ typedef enum {
/* 260 */
QEMU_CAPS_INTEL_IOMMU_DEVICE_IOTLB, /* intel-iommu.device-iotlb */
+ QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM, /* virtio-*-pci.iommu_platform */
+ QEMU_CAPS_VIRTIO_PCI_ATS, /* virtio-*-pci.ats */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index cae1e17..75027c4 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -389,6 +389,38 @@ qemuBuildDeviceAddressStr(virBufferPtr buf,
}
static int
+qemuBuildVirtioOptionsStr(virBufferPtr buf,
+ virDomainVirtioOptionsPtr virtio,
+ virQEMUCapsPtr qemuCaps)
+{
+ if (!virtio)
+ return 0;
+
+ if (virtio->iommu != VIR_TRISTATE_SWITCH_ABSENT) {
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("the iommu setting is not supported "
+ "with this QEMU binary"));
+ return -1;
+ }
+ virBufferAsprintf(buf, ",iommu_platform=%s",
+ virTristateSwitchTypeToString(virtio->iommu));
+ }
+ if (virtio->ats != VIR_TRISTATE_SWITCH_ABSENT) {
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_VIRTIO_PCI_ATS)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("the ats setting is not supported with this "
+ "QEMU binary"));
+ return -1;
+ }
+ virBufferAsprintf(buf, ",ats=%s",
+ virTristateSwitchTypeToString(virtio->ats));
+ }
+
+ return 0;
+}
+
+static int
qemuBuildRomStr(virBufferPtr buf,
virDomainDeviceInfoPtr info)
{
@@ -2167,6 +2199,10 @@ qemuBuildDriveDevStr(const virDomainDef *def,
(disk->device == VIR_DOMAIN_DISK_DEVICE_LUN)
? "on" : "off");
}
+
+ if (qemuBuildVirtioOptionsStr(&opt, disk->virtio, qemuCaps) < 0)
+ goto error;
+
if (qemuBuildDeviceAddressStr(&opt, def, &disk->info, qemuCaps) < 0)
goto error;
break;
@@ -2490,6 +2526,8 @@ qemuBuildFSDevStr(const virDomainDef *def,
QEMU_FSDEV_HOST_PREFIX, fs->info.alias);
virBufferAsprintf(&opt, ",mount_tag=%s", fs->dst);
+ qemuBuildVirtioOptionsStr(&opt, fs->virtio, qemuCaps);
+
if (qemuBuildDeviceAddressStr(&opt, def, &fs->info, qemuCaps) < 0)
goto error;
@@ -2734,6 +2772,8 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
def->iothread);
}
}
+ if (qemuBuildVirtioOptionsStr(&buf, def->virtio, qemuCaps) < 0)
+ goto error;
break;
case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSILOGIC:
virBufferAddLit(&buf, "lsi");
@@ -2779,6 +2819,8 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
virBufferAsprintf(&buf, ",vectors=%d",
def->opts.vioserial.vectors);
}
+ if (qemuBuildVirtioOptionsStr(&buf, def->virtio, qemuCaps) < 0)
+ goto error;
break;
case VIR_DOMAIN_CONTROLLER_TYPE_CCID:
@@ -3773,12 +3815,16 @@ qemuBuildNicDevStr(virDomainDefPtr def,
virBufferAsprintf(&buf, ",id=%s", net->info.alias);
virBufferAsprintf(&buf, ",mac=%s",
virMacAddrFormat(&net->mac, macaddr));
+
if (qemuBuildDeviceAddressStr(&buf, def, &net->info, qemuCaps) < 0)
goto error;
if (qemuBuildRomStr(&buf, &net->info) < 0)
goto error;
if (bootindex && virQEMUCapsGet(qemuCaps, QEMU_CAPS_BOOTINDEX))
virBufferAsprintf(&buf, ",bootindex=%u", bootindex);
+ if (usingVirtio &&
+ qemuBuildVirtioOptionsStr(&buf, net->virtio, qemuCaps) < 0)
+ goto error;
if (virBufferCheckError(&buf) < 0)
goto error;
@@ -4053,6 +4099,9 @@ qemuBuildMemballoonCommandLine(virCommandPtr cmd,
virTristateSwitchTypeToString(def->memballoon->autodeflate));
}
+ if (qemuBuildVirtioOptionsStr(&buf, def->memballoon->virtio, qemuCaps) < 0)
+ goto error;
+
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &buf);
return 0;
@@ -4183,6 +4232,9 @@ qemuBuildVirtioInputDevStr(const virDomainDef *def,
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
+ if (qemuBuildVirtioOptionsStr(&buf, dev->virtio, qemuCaps) < 0)
+ goto error;
+
if (virBufferCheckError(&buf) < 0)
goto error;
@@ -4495,6 +4547,9 @@ qemuBuildDeviceVideoStr(const virDomainDef *def,
if (qemuBuildDeviceAddressStr(&buf, def, &video->info, qemuCaps) < 0)
goto error;
+ if (qemuBuildVirtioOptionsStr(&buf, video->virtio, qemuCaps) < 0)
+ goto error;
+
if (virBufferCheckError(&buf) < 0)
goto error;
@@ -5863,6 +5918,9 @@ qemuBuildRNGDevStr(const virDomainDef *def,
virBufferAddLit(&buf, ",period=1000");
}
+ if (qemuBuildVirtioOptionsStr(&buf, dev->virtio, qemuCaps) < 0)
+ goto error;
+
if (qemuBuildDeviceAddressStr(&buf, def, &dev->info, qemuCaps) < 0)
goto error;
if (virBufferCheckError(&buf) < 0)
diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
index d51ee46..58dd9f6 100644
--- a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
@@ -216,6 +216,8 @@
<flag name='intel-iommu.caching-mode'/>
<flag name='intel-iommu.eim'/>
<flag name='intel-iommu.device-iotlb'/>
+ <flag name='virtio.iommu_platform'/>
+ <flag name='virtio.ats'/>
<version>2009000</version>
<kvmVersion>0</kvmVersion>
<package> (v2.9.0)</package>
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.args b/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.args
index fa12347..b53f1ba 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-virtio-options.args
@@ -16,26 +16,35 @@ QEMU_AUDIO_DRV=none \
-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \
-no-acpi \
-boot c \
--device virtio-scsi-pci,id=scsi0,bus=pci.0,addr=0x8 \
--device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x9 \
+-device virtio-scsi-pci,iommu_platform=on,ats=on,id=scsi0,bus=pci.0,addr=0x8 \
+-device virtio-serial-pci,id=virtio-serial0,iommu_platform=on,ats=on,bus=pci.0,\
+addr=0x9 \
-usb \
-drive file=/var/lib/libvirt/images/img1,format=raw,if=none,\
id=drive-virtio-disk0 \
--device virtio-blk-pci,bus=pci.0,addr=0xa,drive=drive-virtio-disk0,\
-id=virtio-disk0 \
+-device virtio-blk-pci,iommu_platform=on,ats=on,bus=pci.0,addr=0xa,\
+drive=drive-virtio-disk0,id=virtio-disk0 \
-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x3 \
+-device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,iommu_platform=on,\
+ats=on,bus=pci.0,addr=0x3 \
-fsdev local,security_model=mapped,writeout=immediate,id=fsdev-fs1,\
path=/export/fs2 \
--device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x4 \
--device virtio-net-pci,vlan=0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x6 \
+-device virtio-9p-pci,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,iommu_platform=on,\
+ats=on,bus=pci.0,addr=0x4 \
+-device virtio-net-pci,vlan=0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x6,\
+iommu_platform=on,ats=on \
-net user,vlan=0,name=hostnet0 \
--device virtio-mouse-pci,id=input0,bus=pci.0,addr=0xe \
--device virtio-keyboard-pci,id=input1,bus=pci.0,addr=0x10 \
--device virtio-tablet-pci,id=input2,bus=pci.0,addr=0x11 \
+-device virtio-mouse-pci,id=input0,bus=pci.0,addr=0xe,iommu_platform=on,ats=on \
+-device virtio-keyboard-pci,id=input1,bus=pci.0,addr=0x10,iommu_platform=on,\
+ats=on \
+-device virtio-tablet-pci,id=input2,bus=pci.0,addr=0x11,iommu_platform=on,\
+ats=on \
-device virtio-input-host-pci,id=input3,evdev=/dev/input/event1234,bus=pci.0,\
-addr=0x12 \
--device virtio-gpu-pci,id=video0,virgl=on,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xc \
+addr=0x12,iommu_platform=on,ats=on \
+-device virtio-gpu-pci,id=video0,virgl=on,bus=pci.0,addr=0x2,iommu_platform=on,\
+ats=on \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0xc,iommu_platform=on,\
+ats=on \
-object rng-random,id=objrng0,filename=/dev/random \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.0,addr=0xd
+-device virtio-rng-pci,rng=objrng0,id=rng0,iommu_platform=on,ats=on,bus=pci.0,\
+addr=0xd
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 609ea1e..b410b20 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -2553,7 +2553,9 @@ mymain(void)
QEMU_CAPS_VIRTIO_GPU_VIRGL,
QEMU_CAPS_DEVICE_VIRTIO_RNG,
QEMU_CAPS_OBJECT_RNG_RANDOM,
- QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
+ QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+ QEMU_CAPS_VIRTIO_PCI_IOMMU_PLATFORM,
+ QEMU_CAPS_VIRTIO_PCI_ATS);
DO_TEST("fd-memory-numa-topology", QEMU_CAPS_MEM_PATH, QEMU_CAPS_OBJECT_MEMORY_FILE,
QEMU_CAPS_KVM);
--
2.10.2
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