[libvirt] [PATCH v5 0/2] qemu: Support for QXL heads
v5: - Just a rebase, plus v4 had some hunk in that didn't belong there so this one's cleaner to look at - https://www.redhat.com/archives/libvir-list/2016-March/msg01436.html v4: - Added test case without "heads=" - Don't consolidate 'size_t i, j' declarations v3: - rebase on top of current master in order to cleanly apply - https://www.redhat.com/archives/libvir-list/2016-March/msg01198.html v2: - don't change heads when migrating - https://www.redhat.com/archives/libvir-list/2016-March/msg00811.html v1: - https://www.redhat.com/archives/libvir-list/2016-March/msg00410.html Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283207 Martin Kletzander (2): qemu: Check for qxl's max_outputs parameter qemu: Add support to QXL's max_outputs parameter src/qemu/qemu_capabilities.c | 5 ++ src/qemu/qemu_capabilities.h | 4 ++ src/qemu/qemu_command.c | 8 +++ src/qemu/qemu_migration.c | 64 ++++++++++++++++++++-- .../qemuxml2argv-video-qxl-heads.args | 28 ++++++++++ .../qemuxml2argv-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2argv-video-qxl-noheads.args | 24 ++++++++ .../qemuxml2argv-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2argvtest.c | 16 ++++++ .../qemuxml2xmlout-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2xmlout-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2xmltest.c | 3 + 12 files changed, 319 insertions(+), 5 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml -- 2.8.1
There is max_outputs parameter for both qxl and qxl-vga and there is no easy way of saying that we want the capability enabled only if both are supported. So let's have two of them and only use them together. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- src/qemu/qemu_capabilities.c | 5 +++++ src/qemu/qemu_capabilities.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index b73c296bad2a..90bbb299e797 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -322,6 +322,9 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "chardev-logfile", "debug-threads", "secret", + "qxl.max_outputs", + + "qxl-vga.max_outputs", /* 220 */ ); @@ -1661,11 +1664,13 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVmwareSvga[] = { static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsQxl[] = { { "vgamem_mb", QEMU_CAPS_QXL_VGAMEM }, { "vram64_size_mb", QEMU_CAPS_QXL_VRAM64 }, + { "max_outputs", QEMU_CAPS_QXL_MAX_OUTPUTS }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsQxlVga[] = { { "vgamem_mb", QEMU_CAPS_QXL_VGA_VGAMEM }, { "vram64_size_mb", QEMU_CAPS_QXL_VGA_VRAM64 }, + { "max_outputs", QEMU_CAPS_QXL_VGA_MAX_OUTPUTS }, }; static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsVirtioGpu[] = { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index ae0d9b3c1915..cf052f119f4c 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -352,6 +352,10 @@ typedef enum { QEMU_CAPS_CHARDEV_LOGFILE, /* -chardev logfile=xxxx */ QEMU_CAPS_NAME_DEBUG_THREADS, /* Is -name debug-threads= available */ QEMU_CAPS_OBJECT_SECRET, /* -object secret */ + QEMU_CAPS_QXL_MAX_OUTPUTS, /* -device qxl,max-outputs= */ + + /* 220 */ + QEMU_CAPS_QXL_VGA_MAX_OUTPUTS, /* -device qxl-vga,max-outputs= */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; -- 2.8.1
Historically, we added heads=1 to videos, but for example for qxl, we did not reflect that on the command line. Implementing that now could mean that if user were to migrate from older to newer libvirt, the command-line for qemu would differ. In order for that not to happen a migration cookie flag is introduced. Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- src/qemu/qemu_command.c | 8 +++ src/qemu/qemu_migration.c | 64 ++++++++++++++++++++-- .../qemuxml2argv-video-qxl-heads.args | 28 ++++++++++ .../qemuxml2argv-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2argv-video-qxl-noheads.args | 24 ++++++++ .../qemuxml2argv-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2argvtest.c | 16 ++++++ .../qemuxml2xmlout-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2xmlout-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2xmltest.c | 3 + 10 files changed, 310 insertions(+), 5 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index da99e5c85b8b..cbd069e6cdc9 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3982,6 +3982,14 @@ qemuBuildDeviceVideoStr(const virDomainDef *def, /* QEMU accepts mebibytes for vgamem_mb. */ virBufferAsprintf(&buf, ",vgamem_mb=%u", video->vgamem / 1024); } + + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_VGA_MAX_OUTPUTS) && + virQEMUCapsGet(qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS)) { + if (video->heads) + virBufferAsprintf(&buf, ",max_outputs=%u", video->heads); + } else { + video->heads = 0; + } } else if (video->vram && ((video->type == VIR_DOMAIN_VIDEO_TYPE_VGA && virQEMUCapsGet(qemuCaps, QEMU_CAPS_VGA_VGAMEM)) || diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index d0055a27e24c..57d18f0e0be5 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -87,6 +87,7 @@ enum qemuMigrationCookieFlags { QEMU_MIGRATION_COOKIE_FLAG_NBD, QEMU_MIGRATION_COOKIE_FLAG_STATS, QEMU_MIGRATION_COOKIE_FLAG_MEMORY_HOTPLUG, + QEMU_MIGRATION_COOKIE_FLAG_VIDEO_HEADS, QEMU_MIGRATION_COOKIE_FLAG_LAST }; @@ -100,7 +101,8 @@ VIR_ENUM_IMPL(qemuMigrationCookieFlag, "network", "nbd", "statistics", - "memory-hotplug"); + "memory-hotplug", + "video-heads"); enum qemuMigrationCookieFeatures { QEMU_MIGRATION_COOKIE_GRAPHICS = (1 << QEMU_MIGRATION_COOKIE_FLAG_GRAPHICS), @@ -110,6 +112,7 @@ enum qemuMigrationCookieFeatures { QEMU_MIGRATION_COOKIE_NBD = (1 << QEMU_MIGRATION_COOKIE_FLAG_NBD), QEMU_MIGRATION_COOKIE_STATS = (1 << QEMU_MIGRATION_COOKIE_FLAG_STATS), QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG = (1 << QEMU_MIGRATION_COOKIE_FLAG_MEMORY_HOTPLUG), + QEMU_MIGRATION_COOKIE_VIDEO_HEADS = (1 << QEMU_MIGRATION_COOKIE_FLAG_VIDEO_HEADS), }; typedef struct _qemuMigrationCookieGraphics qemuMigrationCookieGraphics; @@ -1387,6 +1390,9 @@ qemuMigrationBakeCookie(qemuMigrationCookiePtr mig, if (flags & QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG) mig->flagsMandatory |= QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG; + if (flags & QEMU_MIGRATION_COOKIE_VIDEO_HEADS) + mig->flagsMandatory |= QEMU_MIGRATION_COOKIE_VIDEO_HEADS; + if (!(*cookieout = qemuMigrationCookieXMLFormatStr(driver, mig))) return -1; @@ -3142,7 +3148,6 @@ qemuMigrationBeginPhase(virQEMUDriverPtr driver, if (nmigrate_disks) { if (has_drive_mirror) { size_t i, j; - /* Check user requested only known disk targets. */ for (i = 0; i < nmigrate_disks; i++) { for (j = 0; j < vm->def->ndisks; j++) { @@ -3187,6 +3192,29 @@ qemuMigrationBeginPhase(virQEMUDriverPtr driver, vm->newDef && virDomainDefHasMemoryHotplug(vm->newDef))) cookieFlags |= QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG; + /* + * If there is at least one QXL video with number of heads + * defined, we need to indicate that we now know how to + * properly specify that on the command-line. Destination + * that cannot do this will properly block such migration and + * new enough destination will know that the value can be kept + * and not reset. + */ + if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_QXL_MAX_OUTPUTS) && + virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_QXL_VGA_MAX_OUTPUTS)) { + size_t i = 0; + + for (i = 0; i < vm->def->nvideos; i++) { + virDomainVideoDefPtr vid = vm->def->videos[i]; + + if (vid->type == VIR_DOMAIN_VIDEO_TYPE_QXL && + vid->heads) { + cookieFlags |= QEMU_MIGRATION_COOKIE_VIDEO_HEADS; + break; + } + } + } + if (!(mig = qemuMigrationEatCookie(driver, vm, NULL, 0, 0))) goto cleanup; @@ -3414,6 +3442,32 @@ qemuMigrationPrepareIncoming(virDomainObjPtr vm, } static int +qemuMigratePrepareDomain(virConnectPtr dconn, + virQEMUDriverPtr driver, + virDomainObjPtr vm, + qemuMigrationCookiePtr mig) +{ + size_t i = 0; + + if (!(mig->flags & QEMU_MIGRATION_COOKIE_VIDEO_HEADS)) { + /* + * Source didn't know how to properly specify number of heads + * for QXL video, so in order to migrate with ABI kept, leave + * the value unspecified. + */ + for (i = 0; i < vm->def->nvideos; i++) { + virDomainVideoDefPtr vid = vm->def->videos[i]; + + if (vid->type == VIR_DOMAIN_VIDEO_TYPE_QXL) + vid->heads = 0; + } + } + + return qemuProcessPrepareDomain(dconn, driver, vm, + VIR_QEMU_PROCESS_START_AUTODESTROY); +} + +static int qemuMigrationPrepareAny(virQEMUDriverPtr driver, virConnectPtr dconn, const char *cookiein, @@ -3556,7 +3610,8 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, if (!(mig = qemuMigrationEatCookie(driver, vm, cookiein, cookieinlen, QEMU_MIGRATION_COOKIE_LOCKSTATE | QEMU_MIGRATION_COOKIE_NBD | - QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG))) + QEMU_MIGRATION_COOKIE_MEMORY_HOTPLUG | + QEMU_MIGRATION_COOKIE_VIDEO_HEADS))) goto cleanup; if (STREQ_NULLABLE(protocol, "rdma") && @@ -3600,8 +3655,7 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, goto stopjob; dataFD[0] = -1; /* the FD is now owned by incoming */ - if (qemuProcessPrepareDomain(dconn, driver, vm, - VIR_QEMU_PROCESS_START_AUTODESTROY) < 0) + if (qemuMigratePrepareDomain(dconn, driver, vm, mig) < 0) goto stopjob; if (qemuProcessPrepareHost(driver, vm, !!incoming) < 0) diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args new file mode 100644 index 000000000000..a939177088f9 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args @@ -0,0 +1,28 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu \ +-name QEMUGuest1 \ +-S \ +-M pc \ +-m 214 \ +-smp 1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nographic \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ +-no-acpi \ +-boot c \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ +-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,max_outputs=1,\ +bus=pci.0,addr=0x2 \ +-device qxl,id=video1,ram_size=67108864,vram_size=33554432,max_outputs=3,\ +bus=pci.0,addr=0x4 \ +-device qxl,id=video2,ram_size=67108864,vram_size=67108864,max_outputs=7,\ +bus=pci.0,addr=0x5 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml new file mode 100644 index 000000000000..45d08745e652 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml @@ -0,0 +1,47 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</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</emulator> + <disk type='block' device='disk'> + <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'/> + <video> + <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='3'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> + </video> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192' heads='7'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> + </video> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192' heads='1' primary='yes'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args new file mode 100644 index 000000000000..c609d487e181 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args @@ -0,0 +1,24 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu \ +-name QEMUGuest1 \ +-S \ +-M pc \ +-m 214 \ +-smp 1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nographic \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ +-no-acpi \ +-boot c \ +-usb \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \ +-device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 \ +-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,max_outputs=1,\ +bus=pci.0,addr=0x2 \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml new file mode 100644 index 000000000000..de003be53707 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml @@ -0,0 +1,39 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</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</emulator> + <disk type='block' device='disk'> + <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'/> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index be7417820e44..eb34cde840a7 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1847,6 +1847,22 @@ mymain(void) DO_TEST("ppc64-usb-controller-legacy", QEMU_CAPS_PIIX3_USB_UHCI); + DO_TEST("video-qxl-heads", + QEMU_CAPS_DEVICE_VIDEO_PRIMARY, + QEMU_CAPS_VGA_QXL, + QEMU_CAPS_DEVICE_QXL_VGA, + QEMU_CAPS_DEVICE_QXL, + QEMU_CAPS_QXL_MAX_OUTPUTS, + QEMU_CAPS_QXL_VGA_MAX_OUTPUTS); + + DO_TEST("video-qxl-noheads", + QEMU_CAPS_DEVICE_VIDEO_PRIMARY, + QEMU_CAPS_VGA_QXL, + QEMU_CAPS_DEVICE_QXL_VGA, + QEMU_CAPS_DEVICE_QXL, + QEMU_CAPS_QXL_MAX_OUTPUTS, + QEMU_CAPS_QXL_VGA_MAX_OUTPUTS); + DO_TEST_PARSE_FLAGS_ERROR("missing-machine", VIR_DOMAIN_DEF_PARSE_SKIP_OSTYPE_CHECKS, NONE); diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml new file mode 100644 index 000000000000..e7b18ab2b2ab --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml @@ -0,0 +1,47 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</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</emulator> + <disk type='block' device='disk'> + <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'/> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192' heads='1' primary='yes'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <video> + <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='3'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> + </video> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192' heads='7'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> + </video> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml new file mode 100644 index 000000000000..ee22e30ad026 --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml @@ -0,0 +1,39 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</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</emulator> + <disk type='block' device='disk'> + <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'/> + <video> + <model type='qxl' ram='65536' vram='65536' vgamem='8192' heads='1' primary='yes'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> + </video> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> + </memballoon> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index f4093f1ff0e8..1c06f96a5e7d 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -762,6 +762,9 @@ mymain(void) DO_TEST("virtio-input"); DO_TEST("virtio-input-passthrough"); + DO_TEST("video-qxl-heads"); + DO_TEST("video-qxl-noheads"); + qemuTestDriverFree(&driver); return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE; -- 2.8.1
On 04/13/2016 11:14 AM, Martin Kletzander wrote:
v5: - Just a rebase, plus v4 had some hunk in that didn't belong there so this one's cleaner to look at - https://www.redhat.com/archives/libvir-list/2016-March/msg01436.html
v4: - Added test case without "heads=" - Don't consolidate 'size_t i, j' declarations
v3: - rebase on top of current master in order to cleanly apply - https://www.redhat.com/archives/libvir-list/2016-March/msg01198.html
v2: - don't change heads when migrating - https://www.redhat.com/archives/libvir-list/2016-March/msg00811.html
v1: - https://www.redhat.com/archives/libvir-list/2016-March/msg00410.html
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283207
Martin Kletzander (2): qemu: Check for qxl's max_outputs parameter qemu: Add support to QXL's max_outputs parameter
src/qemu/qemu_capabilities.c | 5 ++ src/qemu/qemu_capabilities.h | 4 ++ src/qemu/qemu_command.c | 8 +++ src/qemu/qemu_migration.c | 64 ++++++++++++++++++++-- .../qemuxml2argv-video-qxl-heads.args | 28 ++++++++++ .../qemuxml2argv-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2argv-video-qxl-noheads.args | 24 ++++++++ .../qemuxml2argv-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2argvtest.c | 16 ++++++ .../qemuxml2xmlout-video-qxl-heads.xml | 47 ++++++++++++++++ .../qemuxml2xmlout-video-qxl-noheads.xml | 39 +++++++++++++ tests/qemuxml2xmltest.c | 3 + 12 files changed, 319 insertions(+), 5 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-heads.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-video-qxl-noheads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-heads.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-video-qxl-noheads.xml
-- 2.8.1
-- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Been sitting on list for a while .... Obviously I think you know you have to update to top of tree Would be nice to perhaps add a few intro comments to qemuMigratePrepareDomain at least with respect to what the purpose is and what "could" be done in the future in the code. Looks like to me it's now a shim to qemuProcessPrepareDomain to take care of any of those "inconsistencies" between what can be supported in/on the new system (perhaps could work in the opposite direction too ;-))... When I'm reading code, I'm not necessarily looking at the commit message that added which may have that information. I think you could also update the commit message to point at the previous code that was reverted to help understand the history. ACK for the concept - looks like things are OK to me. John
On Thu, May 05, 2016 at 07:18:51PM -0400, John Ferlan wrote: [...]
Been sitting on list for a while ....
Obviously I think you know you have to update to top of tree
Would be nice to perhaps add a few intro comments to qemuMigratePrepareDomain at least with respect to what the purpose is and what "could" be done in the future in the code. Looks like to me it's now a shim to qemuProcessPrepareDomain to take care of any of those "inconsistencies" between what can be supported in/on the new system (perhaps could work in the opposite direction too ;-))... When I'm reading code, I'm not necessarily looking at the commit message that added which may have that information.
I think you could also update the commit message to point at the previous code that was reverted to help understand the history.
ACK for the concept - looks like things are OK to me.
John
The only issue with this patch is that it breaks migration back to older libvirt. We generally try to not break migration to old libvirt if you migrate from new libvirt to old libvirt with the same XML that would be also valid for the old libvirt. Since there is no change in the XML and we start using the 'heads' attribute and we now pass that value to qemu you cannot migrate back to some older libvirt. NACK, we need to figure this out. Pavel
On Fri, May 06, 2016 at 01:27:15PM +0200, Pavel Hrdina wrote:
On Thu, May 05, 2016 at 07:18:51PM -0400, John Ferlan wrote:
[...]
Been sitting on list for a while ....
Obviously I think you know you have to update to top of tree
Would be nice to perhaps add a few intro comments to qemuMigratePrepareDomain at least with respect to what the purpose is and what "could" be done in the future in the code. Looks like to me it's now a shim to qemuProcessPrepareDomain to take care of any of those "inconsistencies" between what can be supported in/on the new system (perhaps could work in the opposite direction too ;-))... When I'm reading code, I'm not necessarily looking at the commit message that added which may have that information.
I think you could also update the commit message to point at the previous code that was reverted to help understand the history.
ACK for the concept - looks like things are OK to me.
John
The only issue with this patch is that it breaks migration back to older libvirt. We generally try to not break migration to old libvirt if you migrate from new libvirt to old libvirt with the same XML that would be also valid for the old libvirt. Since there is no change in the XML and we start using the 'heads' attribute and we now pass that value to qemu you cannot migrate back to some older libvirt.
NACK, we need to figure this out.
Yep, the major use of QXL is RHEV/oVirt and they explicitly require libvirt to support migration to old versions. So we need to figure this out. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
On Fri, May 06, 2016 at 12:30:27PM +0100, Daniel P. Berrange wrote:
On Fri, May 06, 2016 at 01:27:15PM +0200, Pavel Hrdina wrote:
On Thu, May 05, 2016 at 07:18:51PM -0400, John Ferlan wrote:
[...]
Been sitting on list for a while ....
Obviously I think you know you have to update to top of tree
Would be nice to perhaps add a few intro comments to qemuMigratePrepareDomain at least with respect to what the purpose is and what "could" be done in the future in the code. Looks like to me it's now a shim to qemuProcessPrepareDomain to take care of any of those "inconsistencies" between what can be supported in/on the new system (perhaps could work in the opposite direction too ;-))... When I'm reading code, I'm not necessarily looking at the commit message that added which may have that information.
I think you could also update the commit message to point at the previous code that was reverted to help understand the history.
ACK for the concept - looks like things are OK to me.
John
The only issue with this patch is that it breaks migration back to older libvirt. We generally try to not break migration to old libvirt if you migrate from new libvirt to old libvirt with the same XML that would be also valid for the old libvirt. Since there is no change in the XML and we start using the 'heads' attribute and we now pass that value to qemu you cannot migrate back to some older libvirt.
NACK, we need to figure this out.
Yep, the major use of QXL is RHEV/oVirt and they explicitly require libvirt to support migration to old versions. So we need to figure this out.
So I should basically revert the difference between v1 and v2 and send a v6 with that? The discussion in v1 [1] didn't reach any conclusion so I believe we can safely do that. Martin [1] https://www.redhat.com/archives/libvir-list/2016-March/msg00418.html
Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
participants (4)
-
Daniel P. Berrange -
John Ferlan -
Martin Kletzander -
Pavel Hrdina