[libvirt] [PATCH v4] qemu: sound: Support intel 'ich6' model

In QEMU, the card itself is a PCI device, but it requires a codec (either -device hda-output or -device hda-duplex) to actually output sound. Specifying <sound model='ich6'/> gives us -device intel-hda -device hda-duplex I think it's important that a simple <sound model='ich6'/> sets up a useful codec, to have consistent behavior with all other sound cards. This is basically Dan's proposal of <sound model='ich6'> <codec type='output' slot='0'/> <codec type='duplex' slot='3'/> </sound> without the codec bits implemented. The important thing is to keep a consistent API here, we don't want some <sound> devs require tweaking codecs but not others. Steps I see to accomplishing this: - every <sound> device has a <codec type='default'/> (unless codecs are manually specified) - <codec type='none'/> is required to specify 'no codecs' - new audio settings like mic=on|off could then be exposed in <sound> or <codec> in a consistent manner for all sound models v2: Use model='ich6' v3: Use feature detection, from eblake Set codec id, bus, and cad values v4: intel-hda isn't supported if -device isn't available Signed-off-by: Cole Robinson <crobinso(a)redhat.com&gt; --- docs/formatdomain.html.in | 5 +- docs/schemas/domain.rng | 1 + src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/qemu/qemu_capabilities.c | 5 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 56 +++++++++++++++++++- .../qemuxml2argv-sound-device.args | 2 +- .../qemuxml2argvdata/qemuxml2argv-sound-device.xml | 1 + tests/qemuxml2argvtest.c | 2 +- 10 files changed, 70 insertions(+), 7 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 859f3fd..e7f65ad 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1880,8 +1880,9 @@ qemu-kvm -net nic,model=? /dev/null The <code>sound</code> element has one mandatory attribute, <code>model</code>, which specifies what real sound device is emulated. Valid values are specific to the underlying hypervisor, though typical - choices are 'es1370', 'sb16', and 'ac97' - (<span class="since">'ac97' only since 0.6.0</span>) + choices are 'es1370', 'sb16', 'ac97', and 'ich6' + (<span class="since"> + 'ac97' only since 0.6.0, 'ich6' only since 0.8.8</span>) </dd> </dl> diff --git a/docs/schemas/domain.rng b/docs/schemas/domain.rng index d4756e6..b2f8e00 100644 --- a/docs/schemas/domain.rng +++ b/docs/schemas/domain.rng @@ -1530,6 +1530,7 @@ <value>es1370</value> <value>pcspk</value> <value>ac97</value> + <value>ich6</value> </choice> </attribute> <optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 699fee7..d5445a4 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -231,7 +231,8 @@ VIR_ENUM_IMPL(virDomainSoundModel, VIR_DOMAIN_SOUND_MODEL_LAST, "sb16", "es1370", "pcspk", - "ac97") + "ac97", + "ich6") VIR_ENUM_IMPL(virDomainMemballoonModel, VIR_DOMAIN_MEMBALLOON_MODEL_LAST, "virtio", diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 3b00ba0..fc69627 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -480,6 +480,7 @@ enum virDomainSoundModel { VIR_DOMAIN_SOUND_MODEL_ES1370, VIR_DOMAIN_SOUND_MODEL_PCSPK, VIR_DOMAIN_SOUND_MODEL_AC97, + VIR_DOMAIN_SOUND_MODEL_ICH6, VIR_DOMAIN_SOUND_MODEL_LAST }; diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index faf7d44..02865e4 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -1079,6 +1079,11 @@ cleanup: int qemuCapsParseDeviceStr(const char *str, unsigned long long *flags) { + /* Which devices exist. */ + if (strstr(str, "name \"hda-duplex\"")) + *flags |= QEMUD_CMD_FLAG_HDA_DUPLEX; + + /* Features of given devices. */ if (strstr(str, "pci-assign.configfd")) *flags |= QEMUD_CMD_FLAG_PCI_CONFIGFD; if (strstr(str, "virtio-blk-pci.bootindex")) diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index e9e2da0..9148d90 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -84,6 +84,7 @@ enum qemuCapsFlags { QEMUD_CMD_FLAG_VGA_NONE = (1LL << 47), /* The 'none' arg for '-vga' */ QEMUD_CMD_FLAG_MIGRATE_QEMU_FD = (1LL << 48), /* -incoming fd:n */ QEMUD_CMD_FLAG_BOOTINDEX = (1LL << 49), /* -device bootindex property */ + QEMUD_CMD_FLAG_HDA_DUPLEX = (1LL << 50), /* -device hda-duplex */ }; virCapsPtr qemuCapsInit(virCapsPtr old_caps); diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index c20f031..44a57d8 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -1774,11 +1774,13 @@ qemuBuildSoundDevStr(virDomainSoundDefPtr sound) goto error; } - /* Hack for 2 wierdly unusal devices name in QEMU */ + /* Hack for wierdly unusal devices name in QEMU */ if (STREQ(model, "es1370")) model = "ES1370"; else if (STREQ(model, "ac97")) model = "AC97"; + else if (STREQ(model, "ich6")) + model = "intel-hda"; virBufferVSprintf(&buf, "%s", model); virBufferVSprintf(&buf, ",id=%s", sound->info.alias); @@ -1797,6 +1799,29 @@ error: return NULL; } +static char * +qemuBuildSoundCodecStr(virDomainSoundDefPtr sound, + const char *codec) +{ + virBuffer buf = VIR_BUFFER_INITIALIZER; + int cad = 0; + + virBufferVSprintf(&buf, "%s", codec); + virBufferVSprintf(&buf, ",id=%s-codec%d", sound->info.alias, cad); + virBufferVSprintf(&buf, ",bus=%s.0", sound->info.alias); + virBufferVSprintf(&buf, ",cad=%d", cad); + + if (virBufferError(&buf)) { + virReportOOMError(); + goto error; + } + + return virBufferContentAndReset(&buf); + +error: + virBufferFreeAndReset(&buf); + return NULL; +} static char * qemuBuildVideoDevStr(virDomainVideoDefPtr video) @@ -3817,11 +3842,29 @@ qemuBuildCommandLine(virConnectPtr conn, virCommandAddArgList(cmd, "-soundhw", "pcspk", NULL); } else { virCommandAddArg(cmd, "-device"); - if (!(str = qemuBuildSoundDevStr(sound))) goto error; virCommandAddArg(cmd, str); + + if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6) { + char *codecstr = NULL; + if (!(qemuCmdFlags & QEMUD_CMD_FLAG_HDA_DUPLEX)) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("this QEMU binary lacks hda support")); + goto error; + } + + virCommandAddArg(cmd, "-device"); + if (!(codecstr = qemuBuildSoundCodecStr(sound, + "hda-duplex"))) { + goto error; + } + + virCommandAddArg(cmd, codecstr); + VIR_FREE(codecstr); + } + VIR_FREE(str); } } @@ -3840,6 +3883,13 @@ qemuBuildCommandLine(virConnectPtr conn, "%s", _("invalid sound model")); goto error; } + + if (sound->model == VIR_DOMAIN_SOUND_MODEL_ICH6) { + qemuReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("this QEMU binary lacks hda support")); + goto error; + } + strncat(modstr, model, size); size -= strlen(model); if (i < (def->nsounds - 1)) @@ -5675,6 +5725,8 @@ virDomainDefPtr qemuParseCommandLine(virCapsPtr caps, type = VIR_DOMAIN_SOUND_MODEL_ES1370; } else if (STRPREFIX(start, "ac97")) { type = VIR_DOMAIN_SOUND_MODEL_AC97; + } else if (STRPREFIX(start, "hda")) { + type = VIR_DOMAIN_SOUND_MODEL_ICH6; } if (type != -1) { diff --git a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args index 6b2e697..4c5172f 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.args @@ -1 +1 @@ -LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -usb -soundhw pcspk -device ES1370,id=sound1,bus=pci.0,addr=0x2 -device sb16,id=sound2 -device AC97,id=sound3,bus=pci.0,addr=0x3 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x4 +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefconfig -nodefaults -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -hda /dev/HostVG/QEMUGuest1 -usb -soundhw pcspk -device ES1370,id=sound1,bus=pci.0,addr=0x2 -device sb16,id=sound2 -device AC97,id=sound3,bus=pci.0,addr=0x3 -device intel-hda,id=sound4,bus=pci.0,addr=0x4 -device hda-duplex,id=sound4-codec0,bus=sound4.0,cad=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x5 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.xml b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.xml index c725346..fbca4fe 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-sound-device.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-sound-device.xml @@ -22,6 +22,7 @@ <sound model='es1370'/> <sound model='sb16'/> <sound model='ac97'/> + <sound model='ich6'/> <memballoon model='virtio'/> </devices> </domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index a7270ec..0c0693b 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -418,7 +418,7 @@ mymain(int argc, char **argv) QEMUD_CMD_FLAG_NODEFCONFIG, false); DO_TEST("sound", 0, false); DO_TEST("sound-device", QEMUD_CMD_FLAG_DEVICE | - QEMUD_CMD_FLAG_NODEFCONFIG, false); + QEMUD_CMD_FLAG_NODEFCONFIG | QEMUD_CMD_FLAG_HDA_DUPLEX, false); DO_TEST("fs9p", QEMUD_CMD_FLAG_DEVICE | QEMUD_CMD_FLAG_NODEFCONFIG | QEMUD_CMD_FLAG_FSDEV, false); -- 1.7.3.2