On Wed, Mar 30, 2016 at 01:32:15PM +0200, Martin Kletzander wrote:
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@xxxxxxxxxx> --- src/qemu/qemu_command.c | 8 +++ src/qemu/qemu_migration.c | 64 ++++++++++++++++++++-- .../qemuhotplug-agent-nopath.xml | 5 ++ .../qemuhotplug-hotplug-base+agent-nopath.xml | 58 ++++++++++++++++++++ .../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, 373 insertions(+), 5 deletions(-) create mode 100644 tests/qemuhotplugtestdata/qemuhotplug-agent-nopath.xml create mode 100644 tests/qemuhotplugtestdata/qemuhotplug-hotplug-base+agent-nopath.xml
Oh, for ... sake, don't look at the hotplug stuff, consider it not being part of the series, I removed it from the local index and github repo.
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 45c5398ad8b9..0f1657f09e99 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -3985,6 +3985,14 @@ 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 8bc76bf1671d..609252ae3ccc 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;
@@ -1386,6 +1389,9 @@ 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;
@@ -3132,7 +3138,6 @@ 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++) {
@@ -3177,6 +3182,29 @@ 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;
@@ -3404,6 +3432,32 @@ 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,
@@ -3546,7 +3600,8 @@ 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") &&
@@ -3590,8 +3645,7 @@ 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/qemuhotplugtestdata/qemuhotplug-agent-nopath.xml b/tests/qemuhotplugtestdata/qemuhotplug-agent-nopath.xml
new file mode 100644
index 000000000000..f0e90dea3cc2
--- /dev/null
+++ b/tests/qemuhotplugtestdata/qemuhotplug-agent-nopath.xml
@@ -0,0 +1,5 @@
+ <channel type='unix'>
+ <source mode='bind'/>
+ <target type='virtio' name='org.qemu.guest_agent.0'/>
+ <address type='virtio-serial' controller='0' bus='0' port='1'/>
+ </channel>
diff --git a/tests/qemuhotplugtestdata/qemuhotplug-hotplug-base+agent-nopath.xml b/tests/qemuhotplugtestdata/qemuhotplug-hotplug-base+agent-nopath.xml
new file mode 100644
index 000000000000..cf1fdf3b887b
--- /dev/null
+++ b/tests/qemuhotplugtestdata/qemuhotplug-hotplug-base+agent-nopath.xml
@@ -0,0 +1,58 @@
+<domain type='kvm' id='7'>
+ <name>hotplug</name>
+ <uuid>d091ea82-29e6-2e34-3005-f02617b36e87</uuid>
+ <memory unit='KiB'>4194304</memory>
+ <currentMemory unit='KiB'>4194304</currentMemory>
+ <vcpu placement='static'>4</vcpu>
+ <os>
+ <type arch='x86_64' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <features>
+ <acpi/>
+ <apic/>
+ <pae/>
+ </features>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>restart</on_crash>
+ <devices>
+ <emulator>/usr/libexec/qemu-kvm</emulator>
+ <controller type='usb' index='0'>
+ <alias name='usb'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='ide' index='0'>
+ <alias name='ide'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+ </controller>
+ <controller type='scsi' index='0' model='virtio-scsi'>
+ <alias name='scsi0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'>
+ <alias name='pci'/>
+ </controller>
+ <controller type='virtio-serial' index='0'>
+ <alias name='virtio-serial0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+ </controller>
+ <channel type='unix'>
+ <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain--1-hotplug/org.qemu.guest_agent.0'/>
+ <target type='virtio' name='org.qemu.guest_agent.0'/>
+ <alias name='channel0'/>
+ <address type='virtio-serial' controller='0' bus='0' port='1'/>
+ </channel>
+ <input type='mouse' bus='ps2'>
+ <alias name='input0'/>
+ </input>
+ <input type='keyboard' bus='ps2'>
+ <alias name='input1'/>
+ </input>
+ <memballoon model='none'>
+ <alias name='balloon0'/>
+ </memballoon>
+ </devices>
+ <seclabel type='none' model='none'/>
+</domain>
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 e9b8d6412f63..3fc8d2b93411 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1858,6 +1858,22 @@ 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 07356777b1c2..6f5fb1316d6d 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -761,6 +761,9 @@ 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;
--
2.8.0
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