[libvirt] [PATCH v2 12/12] spice: introduce listen type none
Pavel Hrdina
phrdina at redhat.com
Wed May 11 15:08:31 UTC 2016
This new listen type is currently supported only by spice graphics.
It's introduced to make it easier and clearer specify to not listen
anywhere in order to start a guest with OpenGL support.
The old way to do this was set spice graphics autoport='no' and don't
specify any ports. The new way is to use <listen type='none'/>. In
order to be able to migrate to old libvirt the migratable XML will be
generated without the listen element and with autoport='no'.
Signed-off-by: Pavel Hrdina <phrdina at redhat.com>
---
docs/formatdomain.html.in | 11 ++++
docs/schemas/domaincommon.rng | 5 ++
src/conf/domain_conf.c | 62 +++++++++++++++++-----
src/qemu/qemu_command.c | 11 ++--
.../qemuxml2argv-video-virtio-gpu-spice-gl.args | 2 +-
.../qemuxml2xmlout-video-virtio-gpu-spice-gl.xml | 4 +-
6 files changed, 72 insertions(+), 23 deletions(-)
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 8f3e17f..35bbf3f 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -5375,6 +5375,17 @@ qemu-kvm -net nic,model=? /dev/null
attribute all <code>listen</code> elements are ignored.
</p>
</dd>
+ <dt><code>none</code> <span class="since">since 1.3.5</span></dt>
+ <dd>
+ <p>
+ This listen type doesn't have any other attribute. Libvirt supports
+ passing a file descriptor through our APIs virDomainOpenGraphics() and
+ virDomainOpenGraphicsFD(). No other listen types are allowed if this
+ one is used and the graphics device doesn't listen anywhere. You need
+ to use one of the two APIs to pass a FD to QEMU in order to connect to
+ this graphics device. Supported only by <code>spice</code>.
+ </p>
+ </dd>
</dl>
<h4><a name="elementsVideo">Video devices</a></h4>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index e3dbcc6..c1a26a8 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3024,6 +3024,11 @@
</attribute>
</optional>
</group>
+ <group>
+ <attribute name="type">
+ <value>none</value>
+ </attribute>
+ </group>
</choice>
</element>
</zeroOrMore>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 86b211c..99712ff 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -10809,13 +10809,28 @@ virDomainGraphicsListenDefParseXML(virDomainGraphicsListenDefPtr def,
}
def->type = typeVal;
- if (def->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET &&
- graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
- graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("listen type 'socket' is not available for "
- "graphics type '%s'"), graphicsType);
- goto error;
+ switch (def->type) {
+ case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
+ if (graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_VNC &&
+ graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("listen type 'socket' is not available for "
+ "graphics type '%s'"), graphicsType);
+ goto error;
+ }
+ break;
+ case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
+ if (graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("listen type 'none' is not available for "
+ "graphics type '%s'"), graphicsType);
+ goto error;
+ }
+ break;
+ case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS:
+ case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK:
+ case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
+ break;
}
if (def->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS) {
@@ -10900,6 +10915,7 @@ virDomainGraphicsListensParseXML(virDomainGraphicsDefPtr def,
xmlNodePtr *listenNodes = NULL;
xmlNodePtr save = ctxt->node;
virDomainGraphicsListenDef newListen = {0};
+ virDomainGraphicsListenDefPtr glisten = NULL;
char *socketPath = NULL;
int nListens;
int ret = -1;
@@ -10953,6 +10969,19 @@ virDomainGraphicsListensParseXML(virDomainGraphicsDefPtr def,
goto error;
}
+ /* If spice graphics is configured without ports and with autoport='no' then
+ * we start qemu with Spice to not listen anywhere. Let's convert this
+ * configuration to the new listen type='none' which does the same. */
+ if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) {
+ glisten = &def->listens[0];
+
+ if (glisten->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS &&
+ glisten->port == 0 && glisten->tlsPort == 0 && !glisten->autoport) {
+ VIR_FREE(glisten->address);
+ glisten->type = VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE;
+ }
+ }
+
ret = 0;
error:
if (ret < 0)
@@ -21429,10 +21458,8 @@ virDomainGraphicsListenDefFormat(virBufferPtr buf,
return;
virBufferAddLit(buf, "<listen");
- if (def->type) {
- virBufferAsprintf(buf, " type='%s'",
- virDomainGraphicsListenTypeToString(def->type));
- }
+ virBufferAsprintf(buf, " type='%s'",
+ virDomainGraphicsListenTypeToString(def->type));
if (def->address &&
(def->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS ||
@@ -21609,6 +21636,10 @@ virDomainGraphicsDefFormat(virBufferPtr buf,
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
+ if (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE)
+ virBufferAddStr(buf, " autoport='no'");
+ break;
+
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET:
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
@@ -21630,8 +21661,6 @@ virDomainGraphicsDefFormat(virBufferPtr buf,
}
for (i = 0; i < def->nListens; i++) {
- if (def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE)
- continue;
if (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE) {
if (def->listens[i].fromConfig)
continue;
@@ -21644,6 +21673,13 @@ virDomainGraphicsDefFormat(virBufferPtr buf,
def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET &&
!def->listens[i].autogenerated)
continue;
+
+ /* The new listen type none is in the migratable XML represented as
+ * port=0 and autoport=no because old libvirt support this
+ * configuration for spice. */
+ if (def->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE &&
+ def->listens[i].type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE)
+ continue;
}
if (!children) {
virBufferAddLit(buf, ">\n");
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index b911076..64b383d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7635,6 +7635,9 @@ qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE:
+ /* QEMU requires either port or tls-port to be specified */
+ virBufferAddLit(&opt, "port=0,");
+ break;
case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST:
break;
}
@@ -7755,13 +7758,7 @@ qemuBuildGraphicsSPICECommandLine(virQEMUDriverConfigPtr cfg,
virBufferTrim(&opt, ",", -1);
virCommandAddArg(cmd, "-spice");
- /* If we did not add any SPICE arguments, add a dummy 'port=0' one
- * as -spice alone is not allowed on QEMU command line
- */
- if (virBufferUse(&opt) == 0)
- virCommandAddArg(cmd, "port=0");
- else
- virCommandAddArgBuffer(cmd, &opt);
+ virCommandAddArgBuffer(cmd, &opt);
if (graphics->data.spice.keymap)
virCommandAddArgList(cmd, "-k",
graphics->data.spice.keymap, NULL);
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args b/tests/qemuxml2argvdata/qemuxml2argv-video-virtio-gpu-spice-gl.args
index b80ad16..edecca1 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 gl=on \
+-spice port=0,gl=on \
-device virtio-vga,id=video0,virgl=on,bus=pci.0,addr=0x2 \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
index fd260ea..9fb533a 100644
--- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-virtio-gpu-spice-gl.xml
@@ -29,8 +29,8 @@
<controller type='pci' index='0' model='pci-root'/>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
- <graphics type='spice' autoport='no'>
- <listen type='address' autoport='no'/>
+ <graphics type='spice'>
+ <listen type='none'/>
<gl enable='yes'/>
</graphics>
<video>
--
2.8.2
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