[libvirt] [PATCH v2 08/13] conf: gfx: egl-headless: Introduce a new <gl> subelement
Erik Skultety
eskultet at redhat.com
Wed Nov 28 13:38:18 UTC 2018
Unlike with SPICE and SDL which use the <gl> subelement to enable OpenGL
acceleration, specifying egl-headless graphics in the XML has
essentially the same meaning, thus in case of egl-headless we don't have
a need for the 'enable' element attribute and we'll only be interested
in the 'rendernode' one further down the road.
Signed-off-by: Erik Skultety <eskultet at redhat.com>
---
docs/formatdomain.html.in | 11 +++--
docs/schemas/domaincommon.rng | 17 +++++--
src/conf/domain_conf.c | 45 ++++++++++++++++++-
.../graphics-egl-headless-rendernode.xml | 33 ++++++++++++++
.../graphics-egl-headless-rendernode.xml | 41 +++++++++++++++++
tests/qemuxml2xmltest.c | 2 +
6 files changed, 142 insertions(+), 7 deletions(-)
create mode 100644 tests/qemuxml2argvdata/graphics-egl-headless-rendernode.xml
create mode 100644 tests/qemuxml2xmloutdata/graphics-egl-headless-rendernode.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 84259c45e4..428b0e8bb5 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -6704,12 +6704,17 @@ qemu-kvm -net nic,model=? /dev/null
the other types, for practical reasons it should be paired with
either <code>vnc</code> or <code>spice</code> graphics types.
This display type is only supported by QEMU domains
- (needs QEMU <span class="since">2.10</span> or newer) and doesn't
- accept any attributes.
+ (needs QEMU <span class="since">2.10</span> or newer).
+ <span class="Since">5.0.0</span> this element accepts a
+ <code><gl/></code> sub-element with an optional attribute
+ <code>rendernode</code> which can be used to specify an absolute
+ path to a host's DRI device to be used for OpenGL rendering.
</p>
<pre>
<graphics type='spice' autoport='yes'/>
-<graphics type='egl-headless'/>
+<graphics type='egl-headless'>
+ <gl rendernode='/dev/dri/renderD128'/>
+</graphics>
</pre>
</dd>
</dl>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index cb2ca5a20a..5a6c48f1aa 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -3418,9 +3418,20 @@
</attribute>
</optional>
</group>
- <attribute name="type">
- <value>egl-headless</value>
- </attribute>
+ <group>
+ <attribute name="type">
+ <value>egl-headless</value>
+ </attribute>
+ <optional>
+ <element name="gl">
+ <optional>
+ <attribute name="rendernode">
+ <ref name="absFilePath"/>
+ </attribute>
+ </optional>
+ </element>
+ </optional>
+ </group>
</choice>
</element>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 6ae98435cc..86917596c5 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -14074,6 +14074,24 @@ virDomainGraphicsDefParseXMLSpice(virDomainGraphicsDefPtr def,
}
+static int
+virDomainGraphicsDefParseXMLEGLHeadless(virDomainGraphicsDefPtr def,
+ xmlNodePtr node,
+ xmlXPathContextPtr ctxt)
+{
+ xmlNodePtr save = ctxt->node;
+ xmlNodePtr glNode;
+
+ ctxt->node = node;
+
+ if ((glNode = virXPathNode("./gl", ctxt)))
+ def->data.egl_headless.rendernode = virXMLPropString(glNode,
+ "rendernode");
+ ctxt->node = save;
+ return 0;
+}
+
+
/* Parse the XML definition for a graphics device */
static virDomainGraphicsDefPtr
virDomainGraphicsDefParseXML(xmlNodePtr node,
@@ -14123,6 +14141,9 @@ virDomainGraphicsDefParseXML(xmlNodePtr node,
goto error;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
+ if (virDomainGraphicsDefParseXMLEGLHeadless(def, node, ctxt) < 0)
+ goto error;
+ break;
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
break;
}
@@ -26852,6 +26873,20 @@ virDomainGraphicsDefFormat(virBufferPtr buf,
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
+ if (!def->data.egl_headless.rendernode)
+ break;
+
+ if (!children) {
+ virBufferAddLit(buf, ">\n");
+ virBufferAdjustIndent(buf, 2);
+ children = true;
+ }
+
+ virBufferAddLit(buf, "<gl");
+ virBufferEscapeString(buf, " rendernode='%s'",
+ def->data.egl_headless.rendernode);
+ virBufferAddLit(buf, "/>\n");
+ break;
case VIR_DOMAIN_GRAPHICS_TYPE_LAST:
break;
}
@@ -30938,7 +30973,13 @@ virDomainGraphicsDefHasOpenGL(const virDomainDef *def)
bool
virDomainGraphicsSupportsRenderNode(const virDomainGraphicsDef *graphics)
{
- return graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE;
+ bool ret = false;
+
+ if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE ||
+ graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS)
+ ret = true;
+
+ return ret;
}
@@ -30953,6 +30994,8 @@ virDomainGraphicsGetRenderNode(const virDomainGraphicsDef *graphics)
ret = graphics->data.spice.rendernode;
break;
case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS:
+ ret = graphics->data.egl_headless.rendernode;
+ break;
case VIR_DOMAIN_GRAPHICS_TYPE_SDL:
case VIR_DOMAIN_GRAPHICS_TYPE_VNC:
case VIR_DOMAIN_GRAPHICS_TYPE_RDP:
diff --git a/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.xml b/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.xml
new file mode 100644
index 0000000000..a8d54e75da
--- /dev/null
+++ b/tests/qemuxml2argvdata/graphics-egl-headless-rendernode.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'/>
+ <controller type='ide' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <graphics type='egl-headless'>
+ <gl rendernode='/dev/dri/foo'/>
+ </graphics>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmloutdata/graphics-egl-headless-rendernode.xml b/tests/qemuxml2xmloutdata/graphics-egl-headless-rendernode.xml
new file mode 100644
index 0000000000..9b7ac89928
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/graphics-egl-headless-rendernode.xml
@@ -0,0 +1,41 @@
+<domain type='qemu'>
+ <name>QEMUGuest1</name>
+ <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+ <memory unit='KiB'>219100</memory>
+ <currentMemory unit='KiB'>219100</currentMemory>
+ <vcpu placement='static'>1</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-i686</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='hda' bus='ide'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <controller type='usb' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='ide' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <graphics type='egl-headless'>
+ <gl rendernode='/dev/dri/foo'/>
+ </graphics>
+ <video>
+ <model type='cirrus' vram='16384' heads='1' primary='yes'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </video>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 2527497675..25ab990a4b 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -413,6 +413,8 @@ mymain(void)
cfg->spiceAutoUnixSocket = false;
DO_TEST("graphics-spice-egl-headless", NONE);
+ DO_TEST("graphics-egl-headless-rendernode", NONE);
+
DO_TEST("input-usbmouse", NONE);
DO_TEST("input-usbtablet", NONE);
DO_TEST("misc-acpi", NONE);
--
2.19.1
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