Re: [win-pv-devel] [Xen-devel] Developers for virgl 3d windows guest support

[Fabio Fantoni <fabio.fantoni@xxxxxxx>]

Il 27/01/2016 19:37, Konrad Rzeszutek Wilk ha scritto:
> On Tue, Jan 26, 2016 at 05:48:34PM +0100, Fabio Fantoni wrote:
> > I take a fast look to virgl 3d project even if I not tested it for now. It
> > seems interesting for adding 2d and 3d hw acceleration support to virtual
> > machines with a large hw (gpu) choice.
> > I take a look also to intel gvt-g but it has a very limited cpu support
> > choice.
> > I saw that windows guest support with direct3d drivers in virgl is planned
> > but I nothing was done for now.
> > I'm approaching a new project (based on xen) and I'm in planning phase now.
> > My goal would be to have virgl 3d windows guest support (drivers with opengl
> > and direct3d) and support of remote rendering with spice (we are already
> > using with qxl for now)
> Did you look at the VirtIO drivers and their roadmap?
About virtio-gpu using virgl3d project for 3d hw acceleration support 
and is what I mainly watching for its large gpu choice/support, seems 
any gpu that have a drm driver in host kernel is supported by virgl, or 
I'm wrong?
I saw that they don't have short term plan about windows support: 
https://github.com/YanVugenfirer/kvm-guest-drivers-windows/issues/50
If you mean instead intel igvt-g and seems also nvidia with recent posts 
I saw, seems a good project but has very limited hardware choice.
Intel cpus with integrated gpu that support igvt-g don't seems powerful 
enough for major of servers I need to build (about xeon only workstation 
series seems support it).
About nvidia only grid card seems support it (high cost useful only for 
a minimal user target with intensive 3d usage FWIK)
I'm in evaulating/exploring which project/technology is more suitable 
for my goal. My goal is to run at least 10 windows Desktop vms (office 
and schools use target) on a xen host with 2d/3d hw acceleration support.
I'm wondering what solution is more long-term reliable and approceable 
to have such 2d/3d support and FWIK ity seems virgl is the way to go but 
i really need some advice from some expert out there in order to make 
the right choice.
> > Are there any developers expert about these things that can advice me if
> > developing windows drivers (WDDM kernel driver + GL and D3D userspace
> > pieces) and any other needed pieces of code in virglrender, mesa, and /or
> > qemu is a good choice?
> I have no clue about Windows. But when I started working on Linux it took
> me good three months to get comfortable. I would presume the same thing
> is for Windows. Albeit you would need also to have understanding of
> OpenGL.
>
> > If yes, what we would like to know is approx time/effort to have the above
> > support upstream. Approximately how many persons and how many time would
> > require to complete the tasks? (my project is going to be financed so we
> > eventually have resource to schedule working time in the community)
> Um, .. Are you saying you need the person/month values so that you can
> get the money? Or that you have the money and just need to figure out
> if it can be done with the amount you have?
I'm trying to understand if there are some persons able to start and 
close a payed project in order to have such 2d/3d support developed on 
both windows drivers side and whatever virtualGPU solution actually 
available (virgl or other that I'm not aware of).


Thanks for any reply and sorry for my bad english.

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