From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml | 1 + 5 files changed, 6 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 0e6e73774a04..6fee5bc1a418 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -652,6 +652,7 @@ VIR_ENUM_IMPL(virQEMUCaps, "device.json", /* QEMU_CAPS_DEVICE_JSON */ "query-dirty-rate", /* QEMU_CAPS_QUERY_DIRTY_RATE */ "rbd-encryption", /* QEMU_CAPS_RBD_ENCRYPTION */ + "chardev-vdagent", /* QEMU_CAPS_CHARDEV_VDAGENT */ ); @@ -1571,6 +1572,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = { { "query-named-block-nodes/arg-type/flat", QEMU_CAPS_QMP_QUERY_NAMED_BLOCK_NODES_FLAT }, { "screendump/arg-type/device", QEMU_CAPS_SCREENDUMP_DEVICE }, { "set-numa-node/arg-type/+hmat-lb", QEMU_CAPS_NUMA_HMAT }, + { "chardev-add/arg-type/backend/+qemu-vdagent", QEMU_CAPS_CHARDEV_VDAGENT }, }; typedef struct _virQEMUCapsObjectTypeProps virQEMUCapsObjectTypeProps; diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 716e09123c33..15547e59c83d 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -631,6 +631,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */ QEMU_CAPS_DEVICE_JSON, /* -device accepts JSON */ QEMU_CAPS_QUERY_DIRTY_RATE, /* accepts query-dirty-rate */ QEMU_CAPS_RBD_ENCRYPTION, /* Ceph RBD encryption support */ + QEMU_CAPS_CHARDEV_VDAGENT, /* -chardev qemu-vdagent */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml index 1f4f49eb34ad..75cf496e7712 100644 --- a/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml @@ -239,6 +239,7 @@ <flag name='piix4.acpi-root-pci-hotplug'/> <flag name='query-dirty-rate'/> <flag name='rbd-encryption'/> + <flag name='chardev-vdagent'/> <version>6001000</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100243</microcodeVersion> diff --git a/tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml index 9662214cd882..032776706d7e 100644 --- a/tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml +++ b/tests/qemucapabilitiesdata/caps_6.2.0.aarch64.xml @@ -204,6 +204,7 @@ <flag name='device.json'/> <flag name='query-dirty-rate'/> <flag name='rbd-encryption'/> + <flag name='chardev-vdagent'/> <version>6001050</version> <kvmVersion>0</kvmVersion> <microcodeVersion>61700244</microcodeVersion> diff --git a/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml index 39179916c5d3..145137ddfa08 100644 --- a/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.2.0.x86_64.xml @@ -240,6 +240,7 @@ <flag name='device.json'/> <flag name='query-dirty-rate'/> <flag name='rbd-encryption'/> + <flag name='chardev-vdagent'/> <version>6001050</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100244</microcodeVersion> -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- docs/schemas/basictypes.rng | 7 ++ docs/schemas/domaincommon.rng | 33 ++++++++ src/conf/domain_conf.c | 78 ++++++++++++++++++- src/conf/domain_conf.h | 8 ++ src/conf/domain_validate.c | 9 ++- src/libxl/libxl_conf.c | 1 + src/qemu/qemu_capabilities.c | 2 + src/qemu/qemu_command.c | 2 + src/qemu/qemu_domain.c | 1 + src/qemu/qemu_driver.c | 6 +- src/qemu/qemu_hotplug.c | 1 + src/qemu/qemu_process.c | 4 + src/qemu/qemu_validate.c | 1 + src/vmx/vmx.c | 1 + .../domaincapsdata/qemu_6.2.0-q35.x86_64.xml | 1 + .../domaincapsdata/qemu_6.2.0-tcg.x86_64.xml | 1 + tests/domaincapsdata/qemu_6.2.0.x86_64.xml | 1 + .../graphics-dbus-address.xml | 35 +++++++++ tests/qemuxml2argvdata/graphics-dbus-p2p.xml | 33 ++++++++ tests/qemuxml2argvdata/graphics-dbus.xml | 33 ++++++++ .../graphics-dbus-address.xml | 1 + .../qemuxml2xmloutdata/graphics-dbus-p2p.xml | 1 + tests/qemuxml2xmloutdata/graphics-dbus.xml | 1 + tests/qemuxml2xmltest.c | 10 +++ 24 files changed, 267 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/graphics-dbus-address.xml create mode 100644 tests/qemuxml2argvdata/graphics-dbus-p2p.xml create mode 100644 tests/qemuxml2argvdata/graphics-dbus.xml create mode 120000 tests/qemuxml2xmloutdata/graphics-dbus-address.xml create mode 120000 tests/qemuxml2xmloutdata/graphics-dbus-p2p.xml create mode 120000 tests/qemuxml2xmloutdata/graphics-dbus.xml diff --git a/docs/schemas/basictypes.rng b/docs/schemas/basictypes.rng index a221ff6295c0..ae4d5682229c 100644 --- a/docs/schemas/basictypes.rng +++ b/docs/schemas/basictypes.rng @@ -220,6 +220,13 @@ </define> <!--======================================================================--> + <!-- A D-Bus server address: https://dbus.freedesktop.org/doc/dbus-specification.html#addresses --> + <define name="dbusAddr"> + <data type="string"> + <param name="pattern">.+</param> + </data> + </define> + <!-- An ipv4 "dotted quad" address --> <define name="ipv4Addr"> <data type="string"> diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index f01b7a64704b..1dba199db7ec 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -3996,6 +3996,39 @@ </optional> </interleave> </group> + <group> + <attribute name="type"> + <value>dbus</value> + </attribute> + <optional> + <choice> + <group> + <attribute name="address"> + <ref name="dbusAddr"/> + </attribute> + </group> + <group> + <attribute name="p2p"> + <ref name="virYesNo"/> + </attribute> + </group> + </choice> + </optional> + <interleave> + <optional> + <element name="gl"> + <attribute name="enable"> + <ref name="virYesNo"/> + </attribute> + <optional> + <attribute name="rendernode"> + <ref name="absFilePath"/> + </attribute> + </optional> + </element> + </optional> + </interleave> + </group> <group> <attribute name="type"> <value>rdp</value> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index bdcc3dc2c12f..11eb1422d8c1 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -911,6 +911,7 @@ VIR_ENUM_IMPL(virDomainGraphics, "desktop", "spice", "egl-headless", + "dbus", ); VIR_ENUM_IMPL(virDomainGraphicsListen, @@ -1891,6 +1892,11 @@ void virDomainGraphicsDefFree(virDomainGraphicsDef *def) g_free(def->data.egl_headless.rendernode); break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + g_free(def->data.dbus.address); + g_free(def->data.dbus.rendernode); + break; + case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -12866,6 +12872,39 @@ virDomainGraphicsDefParseXMLEGLHeadless(virDomainGraphicsDef *def, } +static int +virDomainGraphicsDefParseXMLDBus(virDomainGraphicsDef *def, + xmlNodePtr node, + xmlXPathContextPtr ctxt) +{ + VIR_XPATH_NODE_AUTORESTORE(ctxt) + xmlNodePtr cur; + virTristateBool p2p; + + if (virXMLPropTristateBool(node, "p2p", VIR_XML_PROP_NONE, + &p2p) < 0) + return -1; + def->data.dbus.p2p = p2p == VIR_TRISTATE_BOOL_YES; + + def->data.dbus.address = virXMLPropString(node, "address"); + def->data.dbus.fromConfig = def->data.dbus.address != NULL; + + ctxt->node = node; + + if ((cur = virXPathNode("./gl", ctxt))) { + def->data.dbus.rendernode = virXMLPropString(cur, + "rendernode"); + + if (virXMLPropTristateBool(cur, "enable", + VIR_XML_PROP_REQUIRED, + &def->data.dbus.gl) < 0) + return -1; + } + + return 0; +} + + virDomainGraphicsDef * virDomainGraphicsDefNew(virDomainXMLOption *xmlopt) { @@ -12940,6 +12979,10 @@ virDomainGraphicsDefParseXML(virDomainXMLOption *xmlopt, case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: virDomainGraphicsDefParseXMLEGLHeadless(def, node, ctxt); break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + if (virDomainGraphicsDefParseXMLDBus(def, node, ctxt) < 0) + goto error; + break; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -26622,6 +26665,27 @@ virDomainGraphicsDefFormat(virBuffer *buf, def->data.egl_headless.rendernode); virBufferAddLit(buf, "/>\n"); break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + if (def->data.dbus.p2p) + virBufferAddLit(buf, " p2p='yes'"); + if (def->data.dbus.address) + virBufferAsprintf(buf, " address='%s'", + def->data.dbus.address); + + if (!def->data.dbus.gl) + break; + + if (!children) { + virBufferAddLit(buf, ">\n"); + virBufferAdjustIndent(buf, 2); + children = true; + } + + virBufferAsprintf(buf, "<gl enable='%s'", + virTristateBoolTypeToString(def->data.dbus.gl)); + virBufferEscapeString(buf, " rendernode='%s'", def->data.dbus.rendernode); + virBufferAddLit(buf, "/>\n"); + break; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -31336,6 +31400,11 @@ virDomainGraphicsDefHasOpenGL(const virDomainDef *def) case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: return true; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + if (graphics->data.dbus.gl == VIR_TRISTATE_BOOL_YES) + return true; + + continue; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -31351,7 +31420,8 @@ virDomainGraphicsSupportsRenderNode(const virDomainGraphicsDef *graphics) bool ret = false; if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE || - graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS) + graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS || + graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_DBUS) ret = true; return ret; @@ -31370,6 +31440,9 @@ virDomainGraphicsGetRenderNode(const virDomainGraphicsDef *graphics) case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: ret = graphics->data.egl_headless.rendernode; break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + ret = graphics->data.dbus.rendernode; + break; case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_VNC: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: @@ -31391,6 +31464,9 @@ virDomainGraphicsNeedsAutoRenderNode(const virDomainGraphicsDef *graphics) if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE && graphics->data.spice.gl != VIR_TRISTATE_BOOL_YES) return false; + if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_DBUS && + graphics->data.dbus.gl != VIR_TRISTATE_BOOL_YES) + return false; if (virDomainGraphicsGetRenderNode(graphics)) return false; diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index c0c07ea6ba24..384b85db3a2c 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -1733,6 +1733,7 @@ typedef enum { VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP, VIR_DOMAIN_GRAPHICS_TYPE_SPICE, VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS, + VIR_DOMAIN_GRAPHICS_TYPE_DBUS, VIR_DOMAIN_GRAPHICS_TYPE_LAST } virDomainGraphicsType; @@ -1916,6 +1917,13 @@ struct _virDomainGraphicsDef { struct { char *rendernode; } egl_headless; + struct { + bool p2p; + char *address; + char *rendernode; + virTristateBool gl; + bool fromConfig; /* true if the @address is config file originated */ + } dbus; } data; /* nListens, listens, and *port are only useful if type is vnc, * rdp, or spice. They've been extracted from the union only to diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c index a4271f12479f..c13472516fec 100644 --- a/src/conf/domain_validate.c +++ b/src/conf/domain_validate.c @@ -2240,8 +2240,15 @@ static int virDomainGraphicsDefValidate(const virDomainDef *def, const virDomainGraphicsDef *graphics) { - if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) + if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_VNC) { return virDomainEnsureAudioID(def, graphics->data.vnc.audioId); + } else if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_DBUS) { + if (graphics->data.dbus.p2p && graphics->data.dbus.address) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("D-Bus p2p with an address is not supported")); + return -1; + } + } return 0; } diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index f37c2281390b..398f29ad3257 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -1551,6 +1551,7 @@ libxlMakeVfb(virPortAllocatorRange *graphicsports, case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_SPICE: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 495f7171da1c..12d3ca8c903d 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -6081,6 +6081,8 @@ virQEMUCapsFillDomainDeviceGraphicsCaps(virQEMUCaps *qemuCaps, VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_SPICE); if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_EGL_HEADLESS)) VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS); + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISPLAY_DBUS)) + VIR_DOMAIN_CAPS_ENUM_SET(dev->type, VIR_DOMAIN_GRAPHICS_TYPE_DBUS); } diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index c47998aabdf1..0fb55fc94365 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -8672,6 +8672,7 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfig *cfg, graphics) < 0) return -1; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: break; case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: @@ -10444,6 +10445,7 @@ qemuBuildCommandLineValidate(virQEMUDriver *driver, case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: ++egl_headless; break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 2c10f185f86c..32cb1d8713d5 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -3453,6 +3453,7 @@ qemuDomainDefSuggestDefaultAudioBackend(virQEMUDriver *driver, case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: break; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: default: diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index b88fb470323a..006b893b80bf 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -15668,12 +15668,13 @@ qemuDomainOpenGraphics(virDomainPtr dom, case VIR_DOMAIN_GRAPHICS_TYPE_SPICE: protocol = "spice"; break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("Can only open VNC or SPICE graphics backends, not %s"), + _("Can only open VNC, SPICE or D-Bus p2p graphics backends, not %s"), virDomainGraphicsTypeToString(vm->def->graphics[idx]->type)); goto endjob; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: @@ -15736,12 +15737,13 @@ qemuDomainOpenGraphicsFD(virDomainPtr dom, case VIR_DOMAIN_GRAPHICS_TYPE_SPICE: protocol = "spice"; break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("Can only open VNC or SPICE graphics backends, not %s"), + _("Can only open VNC, SPICE or D-Bus p2p graphics backends, not %s"), virDomainGraphicsTypeToString(vm->def->graphics[idx]->type)); goto cleanup; case VIR_DOMAIN_GRAPHICS_TYPE_LAST: diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index 71c068619042..421ead96ecd5 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -4378,6 +4378,7 @@ qemuDomainChangeGraphics(virQEMUDriver *driver, case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: virReportError(VIR_ERR_INTERNAL_ERROR, _("unable to change config on '%s' graphics type"), type); break; diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 6b83a571b916..53b5dcaff5d7 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4782,6 +4782,7 @@ qemuProcessGraphicsReservePorts(virDomainGraphicsDef *graphics, case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -4821,6 +4822,7 @@ qemuProcessGraphicsAllocatePorts(virQEMUDriver *driver, case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -4977,6 +4979,7 @@ qemuProcessGraphicsSetupListen(virQEMUDriver *driver, case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -5281,6 +5284,7 @@ qemuProcessStartValidateGraphics(virDomainObj *vm) case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index 1de6e0510128..05792f4e4c0a 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -4170,6 +4170,7 @@ qemuValidateDomainDeviceDefGraphics(const virDomainGraphicsDef *graphics, case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } diff --git a/src/vmx/vmx.c b/src/vmx/vmx.c index d3540acd84a8..2c48bbc5e812 100644 --- a/src/vmx/vmx.c +++ b/src/vmx/vmx.c @@ -3446,6 +3446,7 @@ virVMXFormatConfig(virVMXContext *ctx, virDomainXMLOption *xmlopt, virDomainDef case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_SPICE: case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("Unsupported graphics type '%s'"), virDomainGraphicsTypeToString(def->graphics[i]->type)); diff --git a/tests/domaincapsdata/qemu_6.2.0-q35.x86_64.xml b/tests/domaincapsdata/qemu_6.2.0-q35.x86_64.xml index 9d68c0a404bb..303378e3e1fb 100644 --- a/tests/domaincapsdata/qemu_6.2.0-q35.x86_64.xml +++ b/tests/domaincapsdata/qemu_6.2.0-q35.x86_64.xml @@ -154,6 +154,7 @@ <value>vnc</value> <value>spice</value> <value>egl-headless</value> + <value>dbus</value> </enum> </graphics> <video supported='yes'> diff --git a/tests/domaincapsdata/qemu_6.2.0-tcg.x86_64.xml b/tests/domaincapsdata/qemu_6.2.0-tcg.x86_64.xml index 8db840faac9e..04b5f72e0dde 100644 --- a/tests/domaincapsdata/qemu_6.2.0-tcg.x86_64.xml +++ b/tests/domaincapsdata/qemu_6.2.0-tcg.x86_64.xml @@ -160,6 +160,7 @@ <value>vnc</value> <value>spice</value> <value>egl-headless</value> + <value>dbus</value> </enum> </graphics> <video supported='yes'> diff --git a/tests/domaincapsdata/qemu_6.2.0.x86_64.xml b/tests/domaincapsdata/qemu_6.2.0.x86_64.xml index 0f89790b60e2..a946f96b1db0 100644 --- a/tests/domaincapsdata/qemu_6.2.0.x86_64.xml +++ b/tests/domaincapsdata/qemu_6.2.0.x86_64.xml @@ -154,6 +154,7 @@ <value>vnc</value> <value>spice</value> <value>egl-headless</value> + <value>dbus</value> </enum> </graphics> <video supported='yes'> diff --git a/tests/qemuxml2argvdata/graphics-dbus-address.xml b/tests/qemuxml2argvdata/graphics-dbus-address.xml new file mode 100644 index 000000000000..1e8526b2748e --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-address.xml @@ -0,0 +1,35 @@ +<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-i386</emulator> + <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='dbus' address='unix:path=/tmp/foo'> + <gl enable='yes' 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/qemuxml2argvdata/graphics-dbus-p2p.xml b/tests/qemuxml2argvdata/graphics-dbus-p2p.xml new file mode 100644 index 000000000000..a99e695471cb --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-p2p.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-i386</emulator> + <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='dbus' p2p='yes'/> + <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/qemuxml2argvdata/graphics-dbus.xml b/tests/qemuxml2argvdata/graphics-dbus.xml new file mode 100644 index 000000000000..be8442b3cdb3 --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus.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-i386</emulator> + <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='dbus'/> + <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/qemuxml2xmloutdata/graphics-dbus-address.xml b/tests/qemuxml2xmloutdata/graphics-dbus-address.xml new file mode 120000 index 000000000000..c2ff4590c161 --- /dev/null +++ b/tests/qemuxml2xmloutdata/graphics-dbus-address.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/graphics-dbus-address.xml \ No newline at end of file diff --git a/tests/qemuxml2xmloutdata/graphics-dbus-p2p.xml b/tests/qemuxml2xmloutdata/graphics-dbus-p2p.xml new file mode 120000 index 000000000000..8f705412b30b --- /dev/null +++ b/tests/qemuxml2xmloutdata/graphics-dbus-p2p.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/graphics-dbus-p2p.xml \ No newline at end of file diff --git a/tests/qemuxml2xmloutdata/graphics-dbus.xml b/tests/qemuxml2xmloutdata/graphics-dbus.xml new file mode 120000 index 000000000000..e52af445d941 --- /dev/null +++ b/tests/qemuxml2xmloutdata/graphics-dbus.xml @@ -0,0 +1 @@ +../qemuxml2argvdata/graphics-dbus.xml \ No newline at end of file diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index b535cda1879f..ba891df0dfb6 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -373,6 +373,16 @@ mymain(void) QEMU_CAPS_VNC, QEMU_CAPS_EGL_HEADLESS); + DO_TEST("graphics-dbus", + QEMU_CAPS_DEVICE_CIRRUS_VGA, + QEMU_CAPS_DISPLAY_DBUS); + DO_TEST("graphics-dbus-address", + QEMU_CAPS_DEVICE_CIRRUS_VGA, + QEMU_CAPS_DISPLAY_DBUS); + DO_TEST("graphics-dbus-p2p", + QEMU_CAPS_DEVICE_CIRRUS_VGA, + QEMU_CAPS_DISPLAY_DBUS); + DO_TEST_CAPS_ARCH_LATEST("default-video-type-aarch64", "aarch64"); DO_TEST_CAPS_ARCH_LATEST("default-video-type-ppc64", "ppc64"); DO_TEST_CAPS_ARCH_LATEST("default-video-type-riscv64", "riscv64"); -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; By default, libvirt will start a private bus and tell QEMU to connect to it. Instead, a D-Bus "address" to connect to can be specified, or the p2p mode enabled. D-Bus display works best with GL & a rendernode, which can be specified with <gl> child element. Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- src/qemu/qemu_command.c | 41 ++++++++++++++++++- src/qemu/qemu_driver.c | 4 ++ src/qemu/qemu_process.c | 36 +++++++++++++++- .../graphics-dbus-address.args | 30 ++++++++++++++ tests/qemuxml2argvdata/graphics-dbus-p2p.args | 30 ++++++++++++++ tests/qemuxml2argvdata/graphics-dbus.args | 30 ++++++++++++++ tests/qemuxml2argvtest.c | 7 ++++ 7 files changed, 174 insertions(+), 4 deletions(-) create mode 100644 tests/qemuxml2argvdata/graphics-dbus-address.args create mode 100644 tests/qemuxml2argvdata/graphics-dbus-p2p.args create mode 100644 tests/qemuxml2argvdata/graphics-dbus.args diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 0fb55fc94365..7265aae0f503 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -8637,6 +8637,36 @@ qemuBuildGraphicsEGLHeadlessCommandLine(virQEMUDriverConfig *cfg G_GNUC_UNUSED, } +static int +qemuBuildGraphicsDBusCommandLine(virCommand *cmd, + virDomainGraphicsDef *graphics) +{ + g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER; + + virBufferAddLit(&opt, "dbus"); + + if (graphics->data.dbus.p2p) { + virBufferAddLit(&opt, ",p2p=on"); + } else { + virBufferAddLit(&opt, ",addr="); + virQEMUBuildBufferEscapeComma(&opt, graphics->data.dbus.address); + } + if (graphics->data.dbus.gl != VIR_TRISTATE_BOOL_ABSENT) + virBufferAsprintf(&opt, ",gl=%s", + virTristateSwitchTypeToString(graphics->data.dbus.gl)); + if (graphics->data.dbus.rendernode) { + virBufferAddLit(&opt, ",rendernode="); + virQEMUBuildBufferEscapeComma(&opt, + graphics->data.dbus.rendernode); + } + + virCommandAddArg(cmd, "-display"); + virCommandAddArgBuffer(cmd, &opt); + + return 0; +} + + static int qemuBuildGraphicsCommandLine(virQEMUDriverConfig *cfg, virCommand *cmd, @@ -8672,7 +8702,11 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfig *cfg, graphics) < 0) return -1; + break; case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + if (qemuBuildGraphicsDBusCommandLine(cmd, graphics) < 0) + return -1; + break; case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: @@ -10401,6 +10435,7 @@ qemuBuildCommandLineValidate(virQEMUDriver *driver, int vnc = 0; int spice = 0; int egl_headless = 0; + int dbus = 0; if (!driver->privileged) { /* If we have no cgroups then we can have no tunings that @@ -10446,6 +10481,8 @@ qemuBuildCommandLineValidate(virQEMUDriver *driver, ++egl_headless; break; case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + ++dbus; + break; case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: @@ -10453,10 +10490,10 @@ qemuBuildCommandLineValidate(virQEMUDriver *driver, } } - if (sdl > 1 || vnc > 1 || spice > 1 || egl_headless > 1) { + if (sdl > 1 || vnc > 1 || spice > 1 || egl_headless > 1 || dbus > 1) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("only 1 graphics device of each type " - "(sdl, vnc, spice, headless) is supported")); + "(sdl, vnc, spice, headless, dbus) is supported")); return -1; } diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 006b893b80bf..b06f4b2e4126 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -15669,6 +15669,8 @@ qemuDomainOpenGraphics(virDomainPtr dom, protocol = "spice"; break; case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + protocol = "@dbus-display"; + break; case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: @@ -15738,6 +15740,8 @@ qemuDomainOpenGraphicsFD(virDomainPtr dom, protocol = "spice"; break; case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + protocol = "@dbus-display"; + break; case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 53b5dcaff5d7..0f8add10a754 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -4952,6 +4952,22 @@ qemuProcessGraphicsSetupNetworkAddress(virDomainGraphicsListenDef *glisten, } +static int +qemuProcessGraphicsSetupDBus(virQEMUDriver *driver, + virDomainGraphicsDef *graphics, + virDomainObj *vm) +{ + if (graphics->type != VIR_DOMAIN_GRAPHICS_TYPE_DBUS) + return 0; + + if (!graphics->data.dbus.p2p && !graphics->data.dbus.address) { + graphics->data.dbus.address = qemuDBusGetAddress(driver, vm); + } + + return 0; +} + + static int qemuProcessGraphicsSetupListen(virQEMUDriver *driver, virDomainGraphicsDef *graphics, @@ -5043,16 +5059,29 @@ qemuProcessGraphicsSetupRenderNode(virDomainGraphicsDef *graphics, return 0; /* Don't bother picking a DRM node if QEMU doesn't support it. */ - if (graphics->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) { + switch (graphics->type) { + case VIR_DOMAIN_GRAPHICS_TYPE_SPICE: if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SPICE_RENDERNODE)) return 0; rendernode = &graphics->data.spice.rendernode; - } else { + break; + case VIR_DOMAIN_GRAPHICS_TYPE_EGL_HEADLESS: if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_EGL_HEADLESS_RENDERNODE)) return 0; rendernode = &graphics->data.egl_headless.rendernode; + break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + rendernode = &graphics->data.dbus.rendernode; + break; + case VIR_DOMAIN_GRAPHICS_TYPE_SDL: + case VIR_DOMAIN_GRAPHICS_TYPE_VNC: + case VIR_DOMAIN_GRAPHICS_TYPE_RDP: + case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: + case VIR_DOMAIN_GRAPHICS_TYPE_LAST: + virReportEnumRangeError(virDomainGraphicsType, graphics->type); + break; } if (!(*rendernode = virHostGetDRMRenderNode())) @@ -5080,6 +5109,9 @@ qemuProcessSetupGraphics(virQEMUDriver *driver, if (qemuProcessGraphicsSetupListen(driver, graphics, vm) < 0) return -1; + + if (qemuProcessGraphicsSetupDBus(driver, graphics, vm) < 0) + return -1; } if (allocate) { diff --git a/tests/qemuxml2argvdata/graphics-dbus-address.args b/tests/qemuxml2argvdata/graphics-dbus-address.args new file mode 100644 index 000000000000..5332728a6175 --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-address.args @@ -0,0 +1,30 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-display dbus,addr=unix:path=/tmp/foo,gl=on,rendernode=/dev/dri/foo \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvdata/graphics-dbus-p2p.args b/tests/qemuxml2argvdata/graphics-dbus-p2p.args new file mode 100644 index 000000000000..e90a0eeeea4d --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-p2p.args @@ -0,0 +1,30 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-display dbus,p2p=on \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvdata/graphics-dbus.args b/tests/qemuxml2argvdata/graphics-dbus.args new file mode 100644 index 000000000000..80ab9ed7b477 --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus.args @@ -0,0 +1,30 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-display dbus,addr=unix:path=/bad-test-used-env-xdg-runtime-dir/libvirt/qemu/run/dbus/-1-QEMUGuest1-dbus.sock \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 5e4cd7389c02..d024a657af8e 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1513,6 +1513,13 @@ mymain(void) DO_TEST_CAPS_LATEST_PARSE_ERROR("graphics-spice-invalid-egl-headless"); DO_TEST_CAPS_LATEST("graphics-spice-gl-auto-rendernode"); + DO_TEST("graphics-dbus", + QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); + DO_TEST("graphics-dbus-address", + QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); + DO_TEST("graphics-dbus-p2p", + QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); + DO_TEST_NOCAPS("input-usbmouse"); DO_TEST_NOCAPS("input-usbtablet"); DO_TEST_NOCAPS("misc-acpi"); -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; This implementation reports only Unix bus address using the URI format proposed in https://gitlab.freedesktop.org/dbus/dbus/-/issues/348. We prefer a URI form over the D-Bus address form, since all other display protocols use a URI, allowing to distinguish between protocols and making client implementation simpler. Other transports (for example TCP) are not yet handled. The client is assumed to know what to lookup on the bus (the bus name, path & interface of the VM, eventually matching its UUID) P2P mode doesn't report any available URI. Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- tools/virsh-domain.c | 27 +++++++++++++++++++++++++-- 1 file changed, 25 insertions(+), 2 deletions(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index fbe8ec3ea782..89a9546c4a74 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -11431,7 +11431,7 @@ static const vshCmdOptDef opts_domdisplay[] = { {.name = "type", .type = VSH_OT_STRING, .help = N_("select particular graphical display " - "(e.g. \"vnc\", \"spice\", \"rdp\")") + "(e.g. \"vnc\", \"spice\", \"rdp\", \"dbus\")") }, {.name = "all", .type = VSH_OT_BOOL, @@ -11440,6 +11440,26 @@ static const vshCmdOptDef opts_domdisplay[] = { {.name = NULL} }; +static bool +cmdDomDisplayDBus(vshControl *ctl, xmlXPathContext *ctxt, virBuffer *buf) +{ + g_autofree char *addr = NULL; + const char *xpath = "string(/domain/devices/graphics[@type='dbus']/@address)"; + + addr = virXPathString(xpath, ctxt); + if (!addr) + return false; + + if (STRPREFIX(addr, "unix:path=")) { + virBufferAsprintf(buf, "dbus+unix://%s", addr + 10); + } else { + vshError(ctl, _("'%s' D-Bus address is not handled"), addr); + return false; + } + + return true; +} + static bool cmdDomDisplayScheme(vshControl *ctl, const char *scheme, xmlXPathContext *ctxt, virBuffer *buf) @@ -11455,6 +11475,9 @@ cmdDomDisplayScheme(vshControl *ctl, const char *scheme, bool params = false; int tmp; + if (STREQ(scheme, "dbus")) + return cmdDomDisplayDBus(ctl, ctxt, buf); + /* Create our XPATH lookup for the current display's port */ xpath = g_strdup_printf(xpath_fmt, scheme, "@port"); @@ -11615,7 +11638,7 @@ cmdDomDisplay(vshControl *ctl, const vshCmd *cmd) g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER; g_autofree char *output = NULL; bool ret = false; - const char *scheme[] = { "vnc", "spice", "rdp", NULL }; + const char *scheme[] = { "vnc", "spice", "rdp", "dbus", NULL }; const char *type = NULL; int iter = 0; int flags = 0; -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- src/qemu/qemu_command.c | 12 +++++-- src/qemu/qemu_validate.c | 30 ++++++++++++++++- .../qemuxml2argvdata/graphics-dbus-audio.args | 33 +++++++++++++++++++ tests/qemuxml2argvtest.c | 2 ++ 4 files changed, 74 insertions(+), 3 deletions(-) create mode 100644 tests/qemuxml2argvdata/graphics-dbus-audio.args diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index fd1943e94a2d..bc29b7de7ec4 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -8645,7 +8645,8 @@ qemuBuildGraphicsEGLHeadlessCommandLine(virQEMUDriverConfig *cfg G_GNUC_UNUSED, static int -qemuBuildGraphicsDBusCommandLine(virCommand *cmd, +qemuBuildGraphicsDBusCommandLine(virDomainDef *def, + virCommand *cmd, virDomainGraphicsDef *graphics) { g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER; @@ -8667,6 +8668,13 @@ qemuBuildGraphicsDBusCommandLine(virCommand *cmd, graphics->data.dbus.rendernode); } + if (graphics->data.dbus.audioId > 0) { + g_autofree char *audioid = qemuGetAudioIDString(def, graphics->data.dbus.audioId); + if (!audioid) + return -1; + virBufferAsprintf(&opt, ",audiodev=%s", audioid); + } + virCommandAddArg(cmd, "-display"); virCommandAddArgBuffer(cmd, &opt); @@ -8711,7 +8719,7 @@ qemuBuildGraphicsCommandLine(virQEMUDriverConfig *cfg, break; case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: - if (qemuBuildGraphicsDBusCommandLine(cmd, graphics) < 0) + if (qemuBuildGraphicsDBusCommandLine(def, cmd, graphics) < 0) return -1; break; diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index cebaa81361cb..0c12feb68b1f 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -4090,6 +4090,24 @@ qemuValidateDomainDeviceDefVNCGraphics(const virDomainGraphicsDef *graphics, } +static int +qemuValidateDomainDeviceDefDBusGraphics(const virDomainGraphicsDef *graphics, + const virDomainDef *def) +{ + if (graphics->data.dbus.audioId > 0) { + virDomainAudioDef *audio = virDomainDefFindAudioByID(def, graphics->data.dbus.audioId); + + if (audio && audio->type != VIR_DOMAIN_AUDIO_TYPE_DBUS) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("The associated audio is not of 'dbus' kind.")); + return -1; + } + } + + return 0; +} + + static int qemuValidateDomainDeviceDefGraphics(const virDomainGraphicsDef *graphics, const virDomainDef *def, @@ -4167,10 +4185,15 @@ qemuValidateDomainDeviceDefGraphics(const virDomainGraphicsDef *graphics, break; + case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: + if (qemuValidateDomainDeviceDefDBusGraphics(graphics, def) < 0) + return -1; + + break; + case VIR_DOMAIN_GRAPHICS_TYPE_SDL: case VIR_DOMAIN_GRAPHICS_TYPE_RDP: case VIR_DOMAIN_GRAPHICS_TYPE_DESKTOP: - case VIR_DOMAIN_GRAPHICS_TYPE_DBUS: case VIR_DOMAIN_GRAPHICS_TYPE_LAST: break; } @@ -4418,6 +4441,11 @@ qemuValidateDomainDeviceDefAudio(virDomainAudioDef *audio, break; case VIR_DOMAIN_AUDIO_TYPE_DBUS: + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISPLAY_DBUS)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("D-Bus audio is not supported with this QEMU")); + return -1; + } break; case VIR_DOMAIN_AUDIO_TYPE_LAST: diff --git a/tests/qemuxml2argvdata/graphics-dbus-audio.args b/tests/qemuxml2argvdata/graphics-dbus-audio.args new file mode 100644 index 000000000000..ab23f6ac1cda --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-audio.args @@ -0,0 +1,33 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 \ +-audiodev '{"id":"audio1","driver":"dbus","in":{"mixing-engine":false},"out":{"mixing-engine":false}}' \ +-display dbus,p2p=on,audiodev=audio1 \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index d024a657af8e..4186bec86671 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1519,6 +1519,8 @@ mymain(void) QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); DO_TEST("graphics-dbus-p2p", QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); + DO_TEST("graphics-dbus-audio", + QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS, QEMU_CAPS_AUDIODEV); DO_TEST_NOCAPS("input-usbmouse"); DO_TEST_NOCAPS("input-usbtablet"); -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; This feature requires to setup a "-chardev qemu-vdagent,clipboard=on". "qemu-vdagent" is not a typical chardev that you can connect to another end, so it doesn't map to a <serial> or <channel>. Set it up along with "-display dbus" code instead. Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- src/qemu/qemu_command.c | 12 +++++++ .../graphics-dbus-clipboard.args | 31 +++++++++++++++++++ tests/qemuxml2argvtest.c | 4 +++ 3 files changed, 47 insertions(+) create mode 100644 tests/qemuxml2argvdata/graphics-dbus-clipboard.args diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index bc29b7de7ec4..e4d39dc5b8fd 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -8649,6 +8649,7 @@ qemuBuildGraphicsDBusCommandLine(virDomainDef *def, virCommand *cmd, virDomainGraphicsDef *graphics) { + g_autofree char *charAlias = NULL; g_auto(virBuffer) opt = VIR_BUFFER_INITIALIZER; virBufferAddLit(&opt, "dbus"); @@ -8678,6 +8679,17 @@ qemuBuildGraphicsDBusCommandLine(virDomainDef *def, virCommandAddArg(cmd, "-display"); virCommandAddArgBuffer(cmd, &opt); + + if (graphics->data.dbus.copypaste == VIR_TRISTATE_BOOL_YES) { + if (!(charAlias = qemuAliasChardevFromDevAlias("qemu-vdagent"))) + return -1; + + virBufferAsprintf(&opt, "qemu-vdagent,id=%s", charAlias); + virBufferAddLit(&opt, ",clipboard=on"); + virCommandAddArg(cmd, "-chardev"); + virCommandAddArgBuffer(cmd, &opt); + } + return 0; } diff --git a/tests/qemuxml2argvdata/graphics-dbus-clipboard.args b/tests/qemuxml2argvdata/graphics-dbus-clipboard.args new file mode 100644 index 000000000000..fd0c3e7a253e --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-clipboard.args @@ -0,0 +1,31 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-display dbus,addr=unix:path=/bad-test-used-env-xdg-runtime-dir/libvirt/qemu/run/dbus/-1-QEMUGuest1-dbus.sock \ +-chardev qemu-vdagent,id=charqemu-vdagent,clipboard=on \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 4186bec86671..fc8f11d268d0 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1521,6 +1521,10 @@ mymain(void) QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS); DO_TEST("graphics-dbus-audio", QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS, QEMU_CAPS_AUDIODEV); + DO_TEST("graphics-dbus-clipboard", + QEMU_CAPS_DEVICE_CIRRUS_VGA, + QEMU_CAPS_DISPLAY_DBUS, + QEMU_CAPS_CHARDEV_VDAGENT); DO_TEST_NOCAPS("input-usbmouse"); DO_TEST_NOCAPS("input-usbtablet"); -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- src/qemu/qemu_command.c | 8 +++++ src/qemu/qemu_monitor_json.c | 9 ++++++ .../graphics-dbus-chardev.args | 32 +++++++++++++++++++ tests/qemuxml2argvtest.c | 4 +++ 4 files changed, 53 insertions(+) create mode 100644 tests/qemuxml2argvdata/graphics-dbus-chardev.args diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 308ccbf72a1a..582f41ada9ee 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5298,6 +5298,14 @@ qemuBuildChrChardevStr(virLogManager *logManager, break; case VIR_DOMAIN_CHR_TYPE_DBUS: + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DISPLAY_DBUS)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("D-Bus chardev is not supported")); + } + virBufferAsprintf(&buf, "dbus,id=%s,name=%s", charAlias, + dev->data.dbus.channel); + break; + case VIR_DOMAIN_CHR_TYPE_NMDM: case VIR_DOMAIN_CHR_TYPE_LAST: default: diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index c0906fe70f8f..ada987d0a4d5 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -6773,6 +6773,15 @@ qemuMonitorJSONAttachCharDevGetProps(const char *chrID, break; case VIR_DOMAIN_CHR_TYPE_DBUS: + backendType = "dbus"; + + if (virJSONValueObjectAdd(&backendData, + "s:name", chr->data.dbus.channel, + NULL) < 0) + return NULL; + + break; + case VIR_DOMAIN_CHR_TYPE_SPICEPORT: case VIR_DOMAIN_CHR_TYPE_PIPE: case VIR_DOMAIN_CHR_TYPE_STDIO: diff --git a/tests/qemuxml2argvdata/graphics-dbus-chardev.args b/tests/qemuxml2argvdata/graphics-dbus-chardev.args new file mode 100644 index 000000000000..98debbbfa775 --- /dev/null +++ b/tests/qemuxml2argvdata/graphics-dbus-chardev.args @@ -0,0 +1,32 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +/usr/bin/qemu-system-i386 \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine pc,usb=off,dump-guest-core=off \ +-accel tcg \ +-m 214 \ +-realtime mlock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server=on,wait=off \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-no-acpi \ +-boot strict=on \ +-usb \ +-chardev dbus,id=charserial0,name=org.qemu.console.serial.0 \ +-device isa-serial,chardev=charserial0,id=serial0 \ +-display dbus,p2p=on \ +-device cirrus-vga,id=video0,bus=pci.0,addr=0x2 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index fc8f11d268d0..aed30080b7a5 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1525,6 +1525,10 @@ mymain(void) QEMU_CAPS_DEVICE_CIRRUS_VGA, QEMU_CAPS_DISPLAY_DBUS, QEMU_CAPS_CHARDEV_VDAGENT); + DO_TEST("graphics-dbus-chardev", + QEMU_CAPS_DEVICE_ISA_SERIAL, + QEMU_CAPS_DEVICE_CIRRUS_VGA, + QEMU_CAPS_DISPLAY_DBUS); DO_TEST_NOCAPS("input-usbmouse"); DO_TEST_NOCAPS("input-usbtablet"); -- 2.34.1.8.g35151cf07204

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- docs/formatdomain.rst | 43 ++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 42 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index eb8c973cf1fc..ac298fbafa7f 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -6060,6 +6060,39 @@ interaction with the admin. <gl rendernode='/dev/dri/renderD128'/> </graphics> + ``dbus``:since:`Since X.X.X` + Export the display over D-Bus. By default, it will use a private bus, + except when ``p2p`` or ``address`` are specified. + + :: + + <graphics type='dbus'/> + + ``p2p`` (accepts ``on`` or ``off``) enables peer-to-peer connections, + established through virDomainOpenGraphics() APIs. + + ``address`` (accepts a `D-Bus address + <https://dbus.freedesktop.org/doc/dbus-specification.html#addresses>`_), + will connect to the specified bus address. + + This element accepts a ``<gl/>`` sub-element with an optional attribute + ``rendernode`` which can be used to specify an absolute path to a host's + DRI device to be used for OpenGL rendering. + + Copy & Paste functionality (via Spice agent) is set by the ``clipboard`` + element. It is disabled by default, and can be disabled by setting the + ``copypaste`` property to ``yes``. + + D-Bus can export an audio backend using the ``<audio>`` sub-element: + + :: + + <graphics type='dbus' ...> + <audio id='1'> + </graphics> + + Where ``1`` is an id of the `audio device <#elementsAudio>`__. + Graphics device uses a ``<listen>`` to set up where the device should listen for clients. It has a mandatory attribute ``type`` which specifies the listen type. Only ``vnc``, ``spice`` and ``rdp`` supports ``<listen>`` element. :since:`Since @@ -6973,7 +7006,7 @@ to the guest sound device. ``type`` The required ``type`` attribute specifies audio backend type. Currently, the supported values are 'none', 'alsa', 'coreaudio', - 'jack', 'oss', 'pulseaudio', 'sdl', 'spice', 'file'. + 'dbus', jack', 'oss', 'pulseaudio', 'sdl', 'spice', 'file'. ``id`` Integer id of the audio device. Must be greater than 0. @@ -7100,6 +7133,14 @@ and ``<output>`` elements :since:`Since 7.2.0, qemu` +D-Bus audio backend +^^^^^^^^^^^^^^^^^^^ + +The 'dbus' audio backend does not connect to any host audio framework. It +exports a D-Bus interface when associated with a D-Bus display. + +:since:`Since X.X.X, qemu` + Jack audio backend ^^^^^^^^^^^^^^^^^^ -- 2.34.1.8.g35151cf07204