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qemu: command: Enable formatting vfio-pci.display option onto cmdline

Browse Source 
Since QEMU 2.12, QEMU understands a new vfio-pci device option 'display'
which can be used to turn on display capabilities on vgpu-enabled
mediated devices, IOW emulated GPU devices like QXL will no longer be
needed with vgpu-enable mdevs.
QEMU defaults to 'auto' for the 'display' attribute, which is not
foolproof, so we need to play it safe here and default to display='off'
if this attribute wasn't provided in the XML explicitly.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Erik Skultety 2018-05-25 15:55:42 +02:00
parent d54e45b6ed
commit c0ca6dcf42
11 changed files with 352 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/qemu/qemu_command.c
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@ -5207,6 +5207,10 @@ qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
virBufferAdd(&buf, dev_str, -1);
virBufferAsprintf(&buf, ",id=%s,sysfsdev=%s", dev->info->alias, mdevPath);
if (mdevsrc->display != VIR_TRISTATE_SWITCH_ABSENT)
virBufferAsprintf(&buf, ",display=%s",
virTristateSwitchTypeToString(mdevsrc->display));
if (qemuBuildDeviceAddressStr(&buf, def, dev->info, qemuCaps) < 0)
goto cleanup;

35
tests/qemuxml2argvdata/hostdev-mdev-display-missing-graphics.xml Normal file
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@ -0,0 +1,35 @@
<domain type='qemu'>
<name>QEMUGuest2</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-system-i686</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
</controller>
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on'>
<source>
<address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
</source>
</hostdev>
<memballoon model='none'/>
</devices>
</domain>

37
tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.x86_64-latest.args Normal file
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@ -0,0 +1,37 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=spice \
/usr/bin/qemu-system-i686 \
-name guest=QEMUGuest2,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-QEMUGuest2/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-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,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest2,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 \
-spice port=0,seamless-migration=on \
-display egl-headless \
-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,\
vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
-device vfio-pci,id=hostdev0,\
sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,\
bus=pci.0,addr=0x3 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

40
tests/qemuxml2argvdata/hostdev-mdev-display-spice-egl-headless.xml Normal file
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@ -0,0 +1,40 @@
<domain type='qemu' id='1'>
<name>QEMUGuest2</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-system-i686</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
</controller>
<graphics type='spice'/>
<graphics type='egl-headless'/>
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on'>
<source>
<address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
</source>
</hostdev>
<video>
<model type='qxl' heads='1'/>
</video>
<memballoon model='none'/>
</devices>
</domain>

36
tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.x86_64-latest.args Normal file
View File

@ -0,0 +1,36 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=spice \
/usr/bin/qemu-system-i686 \
-name guest=QEMUGuest2,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-QEMUGuest2/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-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,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest2,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 \
-spice port=0,gl=on,rendernode=/dev/dri/foo,seamless-migration=on \
-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,\
vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
-device vfio-pci,id=hostdev0,\
sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,\
bus=pci.0,addr=0x3 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

41
tests/qemuxml2argvdata/hostdev-mdev-display-spice-opengl.xml Normal file
View File

@ -0,0 +1,41 @@
<domain type='qemu' id='1'>
<name>QEMUGuest2</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-system-i686</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
</controller>
<graphics type='spice'>
<gl enable='yes' rendernode='/dev/dri/foo'/>
</graphics>
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on'>
<source>
<address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
</source>
</hostdev>
<video>
<model type='qxl' heads='1'/>
</video>
<memballoon model='none'/>
</devices>
</domain>

37
tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.x86_64-latest.args Normal file
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@ -0,0 +1,37 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-i686 \
-name guest=QEMUGuest2,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-QEMUGuest2/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-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,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest2,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 \
-vnc 127.0.0.1:0 \
-display egl-headless \
-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,\
vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
-device vfio-pci,id=hostdev0,\
sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,\
bus=pci.0,addr=0x3 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

40
tests/qemuxml2argvdata/hostdev-mdev-display-vnc-egl-headless.xml Normal file
View File

@ -0,0 +1,40 @@
<domain type='qemu' id='1'>
<name>QEMUGuest2</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-system-i686</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
</controller>
<graphics type='vnc'/>
<graphics type='egl-headless'/>
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on'>
<source>
<address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
</source>
</hostdev>
<video>
<model type='qxl' heads='1'/>
</video>
<memballoon model='none'/>
</devices>
</domain>

36
tests/qemuxml2argvdata/hostdev-mdev-display-vnc.x86_64-latest.args Normal file
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@ -0,0 +1,36 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-i686 \
-name guest=QEMUGuest2,debug-threads=on \
-S \
-object secret,id=masterKey0,format=raw,\
file=/tmp/lib/domain--1-QEMUGuest2/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-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,fd=1729,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-boot strict=on \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
-drive file=/dev/HostVG/QEMUGuest2,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 \
-vnc 127.0.0.1:0 \
-device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,\
vram64_size_mb=0,vgamem_mb=16,max_outputs=1,bus=pci.0,addr=0x2 \
-device vfio-pci,id=hostdev0,\
sysfsdev=/sys/bus/mdev/devices/53764d0e-85a0-42b4-af5c-2046b460b1dc,display=on,\
bus=pci.0,addr=0x3 \
-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
resourcecontrol=deny \
-msg timestamp=on

39
tests/qemuxml2argvdata/hostdev-mdev-display-vnc.xml Normal file
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@ -0,0 +1,39 @@
<domain type='qemu' id='1'>
<name>QEMUGuest2</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-system-i686</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest2'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<controller type='ide' index='0'>
</controller>
<graphics type='vnc'/>
<hostdev mode='subsystem' type='mdev' model='vfio-pci' display='on'>
<source>
<address uuid='53764d0e-85a0-42b4-af5c-2046b460b1dc'/>
</source>
</hostdev>
<video>
<model type='qxl' heads='1'/>
</video>
<memballoon model='none'/>
</devices>
</domain>

7
tests/qemuxml2argvtest.c
View File

@ -1592,6 +1592,13 @@ mymain(void)
QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST_PARSE_ERROR("hostdev-mdev-invalid-target-address",
QEMU_CAPS_DEVICE_VFIO_PCI);
DO_TEST_CAPS_LATEST("hostdev-mdev-display-spice-opengl");
DO_TEST_CAPS_LATEST("hostdev-mdev-display-spice-egl-headless");
DO_TEST_CAPS_LATEST("hostdev-mdev-display-vnc");
DO_TEST_CAPS_LATEST("hostdev-mdev-display-vnc-egl-headless");
DO_TEST_PARSE_ERROR("hostdev-mdev-display-missing-graphics",
QEMU_CAPS_DEVICE_VFIO_PCI,
QEMU_CAPS_VFIO_PCI_DISPLAY);
DO_TEST("pci-rom", NONE);
DO_TEST("pci-rom-disabled", NONE);
DO_TEST("pci-rom-disabled-invalid", NONE);