Mailinglist Archive: opensuse-features (38 mails)

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[openFATE 323357] seamless support for virgl/virtio-gpu on QEMU/KVM VMs using spice
Feature changed by: Vasilis Liaskovitis (vliaskovitis)
Feature #323357, revision 2
Title: seamless support for virgl/virtio-gpu on QEMU/KVM VMs using
spice

Requested by: Vasilis Liaskovitis (vliaskovitis)
Partner organization: openSUSE.org

Description:
- virgl/virtio-gpu for qemu/KVM support exists since qemu 2.6 Guest
- requirements are met by openSUSE Tumbleweed: guest kernel >= 4.4, mesa
- >= 11.1, xorg server >= 1.19 However the following host requirement is
- not met in TW/Factory: spice server >= 0.13.2 Current libspice-server1
- package is 0.12.8 in TW/Factory. The current workaround is to not use
- spice but to use sdl/gtk with virtio-gpu/virgl instead, and is quite
- messy: - libvirt VM definition needs to change: <graphics type='spice'
- /> to: <graphics type='sdl' display=':0' xauth='/home/user/.
- Xauthority'/> and add following command line args to qemu: <qemu:
- commandline> <qemu:arg value='-s'/> <qemu:arg value='-display'/> <qemu:
- arg value='gtk,gl=on'/> </qemu:commandline> Also user's X display needs
- to be shared with qemu user/group: xhost +SI:localgroup:qemu Note: For
- complete virgl integration, there are also some missing pieces from
- libvirt (regarding cgroup permissions), which are not accepted in
- upstream libvirt afaik (at least not yet), see:
https://www.redhat.com/archives/libvirt-users/2016-December/msg00014.html
+ virgl/virtio-gpu for qemu/KVM support exists since qemu 2.6
+ Guest requirements are met by openSUSE Tumbleweed: guest kernel >= 4.4,
+ mesa >= 11.1, xorg server >= 1.19
+ However the following host requirement is not met in TW/Factory: spice
+ server >= 0.13.2 Current libspice-server1 package is 0.12.8 in
+ TW/Factory.
+ The current workaround is to not use spice but to use sdl/gtk with
+ virtio-gpu/virgl instead, and is quite messy: - libvirt VM definition
+ needs to change: <graphics type='spice' /> to: <graphics type='sdl'
+ display=':0' xauth='/home/user/.Xauthority'/>
+ and add following command line args to qemu:
+ <qemu:commandline> <qemu:arg value='-s'/> <qemu:arg value='-display'/>
+ <qemu:arg value='gtk,gl=on'/> </qemu:commandline>
+ Also user's X display needs to be shared with qemu user/group: xhost
+ +SI:localgroup:qemu
+ Note: For complete virgl integration, there are also some missing
+ pieces from libvirt (regarding cgroup permissions), which are not
+ accepted in upstream libvirt afaik (at least not yet), see:
+ https://www.redhat.com/archives/libvirt-users/2016-December/msg00014.html
More info on virgl requirements and integration:
- https://www.kraxel.org/blog/tag/virtio-gpu/
https://www.kraxel.org/blog/tag/virgl/
+ https://www.kraxel.org/blog/tag/virtio-gpu/
+ https://www.kraxel.org/blog/tag/virgl/

Business case (Partner benefit):
openSUSE.org: This would allow: - Seamless and easy usage of virtio-gpu
/ virgl driver in qemu/KVM openSUSE VMs. - Development of new virtio-
gpu driver features on openSUSE (e.g. next step for virgl/virtio-gpu is
to support vulkan API), performance comparisons b/w virgl and llvmpipe
mesa drivers




--
openSUSE Feature:
https://features.opensuse.org/323357

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