[libvirt] [PATCH] RFC: qemu: add spice/virgl rendernode
marcandre.lureau at redhat.com
marcandre.lureau at redhat.com
Mon Feb 13 11:51:48 UTC 2017
From: Marc-André Lureau <marcandre.lureau at redhat.com>
I am working on a WIP series to add QEMU Spice/virgl rendernode option.
Since rendernodes are not stable across reboots, I propose that QEMU
accepts also a PCI address (other bus types may be added in the future).
This is how I translated it to libvirt. I picked <gpu> over
<rendernode>, since it seems more generic. Comments welcome!
Signed-off-by: Marc-André Lureau <marcandre.lureau at redhat.com>
---
docs/formatdomain.html.in | 13 ++++++-
docs/schemas/domaincommon.rng | 5 +++
src/conf/domain_conf.c | 45 ++++++++++++++++++++--
src/conf/domain_conf.h | 1 +
src/qemu/qemu_capabilities.c | 2 +
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 22 +++++++++++
.../qemuxml2argv-video-virtio-gpu-spice-gl.args | 2 +-
.../qemuxml2argv-video-virtio-gpu-spice-gl.xml | 6 ++-
tests/qemuxml2argvtest.c | 1 +
.../qemuxml2xmlout-video-virtio-gpu-spice-gl.xml | 6 ++-
11 files changed, 97 insertions(+), 7 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 0a115f5dc..5c0f80b3c 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -5619,7 +5619,11 @@ qemu-kvm -net nic,model=? /dev/null
<clipboard copypaste='no'/>
<mouse mode='client'/>
<filetransfer enable='no'/>
- <gl enable='yes'/>
+ <gl enable='yes'>
+ <gpu>
+ <address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
+ </gpu>
+ </gl>
</graphics></pre>
<p>
Spice supports variable compression settings for audio, images and
@@ -5665,6 +5669,13 @@ qemu-kvm -net nic,model=? /dev/null
the <code>gl</code> element, by setting the <code>enable</code>
property. (QEMU only, <span class="since">since 1.3.3</span>).
</p>
+ <p>
+ By default, QEMU will pick the first available GPU. You
+ may specify a host GPU to use for rendering with the
+ <code>gpu</code> element that supports a PCI
+ <code>address</code> child element. (QEMU only, <span
+ class="since">since 3.1</span>).
+ </p>
</dd>
<dt><code>rdp</code></dt>
<dd>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index d715bff29..cc85e07d8 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3033,6 +3033,11 @@
<attribute name="enable">
<ref name="virYesNo"/>
</attribute>
+ <optional>
+ <element name="gpu">
+ <ref name="address"/>
+ </element>
+ </optional>
<empty/>
</element>
</optional>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 1bc72a4e9..a18db6dd9 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -1300,6 +1300,7 @@ void virDomainGraphicsDefFree(virDomainGraphicsDefPtr def)
break;
case VIR_DOMAIN_GRAPHICS_TYPE_SPICE:
+ virDomainDeviceInfoClear(&def->data.spice.gpu);
VIR_FREE(def->data.spice.keymap);
virDomainGraphicsAuthDefClear(&def->data.spice.auth);
break;
@@ -12159,6 +12160,13 @@ virDomainGraphicsDefParseXMLSpice(virDomainGraphicsDefPtr def,
VIR_FREE(enable);
def->data.spice.gl = enableVal;
+
+ if (cur->children && cur->children->type == XML_ELEMENT_NODE &&
+ xmlStrEqual(cur->children->name, BAD_CAST "gpu") &&
+ virDomainDeviceInfoParseXML(cur->children, NULL,
+ &def->data.spice.gpu, flags) < 0)
+ goto error;
+
} else if (xmlStrEqual(cur->name, BAD_CAST "mouse")) {
char *mode = virXMLPropString(cur, "mode");
int modeVal;
@@ -22839,6 +22847,36 @@ virDomainGraphicsListenDefFormatAddr(virBufferPtr buf,
virBufferAsprintf(buf, " listen='%s'", glisten->address);
}
+static int
+virDomainSpiceGLDefFormat(virBufferPtr buf, virDomainGraphicsDefPtr def)
+{
+ virBuffer childrenBuf = VIR_BUFFER_INITIALIZER;
+ int indent = virBufferGetIndent(buf, false);
+
+ if (def->data.spice.gl == VIR_TRISTATE_BOOL_ABSENT) {
+ return 0;
+ }
+
+ virBufferAsprintf(buf, "<gl enable='%s'",
+ virTristateBoolTypeToString(def->data.spice.gl));
+
+ virBufferAdjustIndent(&childrenBuf, indent + 4);
+ if (virDomainDeviceInfoFormat(&childrenBuf, &def->data.spice.gpu, 0) < 0)
+ return -1;
+ if (virBufferUse(&childrenBuf)) {
+ virBufferAddLit(buf, ">\n");
+ virBufferAdjustIndent(buf, 2);
+ virBufferAddLit(buf, "<gpu>\n");
+ virBufferAddBuffer(buf, &childrenBuf);
+ virBufferAddLit(buf, "</gpu>\n");
+ virBufferAdjustIndent(buf, -2);
+ virBufferAddLit(buf, "</gl>\n");
+ } else {
+ virBufferAddLit(buf, "/>\n");
+ }
+ virBufferFreeAndReset(&childrenBuf);
+ return 0;
+}
static int
virDomainGraphicsDefFormat(virBufferPtr buf,
@@ -23082,9 +23120,10 @@ virDomainGraphicsDefFormat(virBufferPtr buf,
if (def->data.spice.filetransfer)
virBufferAsprintf(buf, "<filetransfer enable='%s'/>\n",
virTristateBoolTypeToString(def->data.spice.filetransfer));
- if (def->data.spice.gl)
- virBufferAsprintf(buf, "<gl enable='%s'/>\n",
- virTristateBoolTypeToString(def->data.spice.gl));
+
+ if (virDomainSpiceGLDefFormat(buf, def) < 0) {
+ return -1;
+ }
}
if (children) {
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index dd79206f6..04bdf8914 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1544,6 +1544,7 @@ struct _virDomainGraphicsDef {
virTristateBool copypaste;
virTristateBool filetransfer;
virTristateBool gl;
+ virDomainDeviceInfo gpu;
} spice;
} data;
/* nListens, listens, and *port are only useful if type is vnc,
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 399e31447..e851eec7a 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -357,6 +357,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
"query-cpu-model-expansion", /* 245 */
"virtio-net.host_mtu",
+ "spice-rendernode",
);
@@ -2950,6 +2951,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
{ "spice", "unix", QEMU_CAPS_SPICE_UNIX },
{ "drive", "throttling.bps-total-max-length", QEMU_CAPS_DRIVE_IOTUNE_MAX_LENGTH },
{ "drive", "throttling.group", QEMU_CAPS_DRIVE_IOTUNE_GROUP },
+ { "spice", "rendernode", QEMU_CAPS_SPICE_RENDERNODE },
};
static int
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 95bb67d44..0f998c473 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -393,6 +393,7 @@ typedef enum {
/* 245 */
QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION, /* qmp query-cpu-model-expansion */
QEMU_CAPS_VIRTIO_NET_HOST_MTU, /* virtio-net-*.host_mtu */
+ QEMU_CAPS_SPICE_RENDERNODE, /* -spice rendernode */
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 c00a47a91..3c1de3862 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7920,6 +7920,28 @@ qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
* TristateSwitch helper */
virBufferAsprintf(&opt, "gl=%s,",
virTristateSwitchTypeToString(graphics->data.spice.gl));
+
+ if (graphics->data.spice.gpu.type !=
+ VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+ virDomainDeviceInfo *info = &graphics->data.spice.gpu;
+ char *devstr;
+
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_RENDERNODE)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("This QEMU doesn't support spice OpenGL rendernode"));
+ goto error;
+ }
+ if (info->type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("only 'pci' addresses are supported for the gpu device"));
+ goto error;
+ }
+ if (!(devstr = virDomainPCIAddressAsString(&info->addr.pci)))
+ goto error;
+
+ virBufferAsprintf(&opt, "rendernode=%s,", devstr);
+ VIR_FREE(devstr);
+ }
}
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SEAMLESS_MIGRATION)) {
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args b/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args
index f1ebb62e4..1e0728fb5 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args
+++ b/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args
@@ -19,6 +19,6 @@ QEMU_AUDIO_DRV=spice \
-drive file=/var/lib/libvirt/images/QEMUGuest1,format=qcow2,if=none,\
id=drive-ide0-0-0,cache=none \
-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \
--spice port=0,gl=on \
+-spice port=0,gl=on,rendernode=0000:06:12.5 \
-device virtio-gpu-pci,id=video0,virgl=on,bus=pci.0,addr=0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.xml b/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.xml
index b9c7c8af0..fdd3939d2 100644
--- a/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.xml
+++ b/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.xml
@@ -26,7 +26,11 @@
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='spice' autoport='no'>
- <gl enable='yes'/>
+ <gl enable='yes'>
+ <gpu>
+ <address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
+ </gpu>
+ </gl>
</graphics>
<video>
<model type='virtio' heads='1'>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 8d737fdc8..dcc094960 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1722,6 +1722,7 @@ mymain(void)
QEMU_CAPS_VIRTIO_GPU_VIRGL,
QEMU_CAPS_SPICE,
QEMU_CAPS_SPICE_GL,
+ QEMU_CAPS_SPICE_RENDERNODE,
QEMU_CAPS_DEVICE_VIDEO_PRIMARY);
DO_TEST("video-virtio-gpu-secondary",
QEMU_CAPS_DEVICE_VIRTIO_GPU,
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
index 9fb533ad9..89972d1fe 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
@@ -31,7 +31,11 @@
<input type='keyboard' bus='ps2'/>
<graphics type='spice'>
<listen type='none'/>
- <gl enable='yes'/>
+ <gl enable='yes'>
+ <gpu>
+ <address type='pci' domain='0x0000' bus='0x06' slot='0x12' function='0x5'/>
+ </gpu>
+ </gl>
</graphics>
<video>
<model type='virtio' heads='1' primary='yes'>
--
2.11.0.295.gd7dffce1c.dirty
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