[Spice-devel] Passed trough video card screen access

[Alon Levy]

----- Original Message -----
> Hi Борис,
> 
> Борис Морозов píše v Po 20. 08. 2012 v 15:57 +1000:
> > I wish to migrate from tower cases into nettops to make
> > contribution to ecology by using KVM based virtualization. I made
> > some expiriments that show me that i'am in right way but only one
> > thing is obstacle from success.
> > 
> > Some days ago on my server i successfully passtrough AMD HD 6770
> > video card in Windows 7 virtual machine controled by KVM.
> 
> I wasn't even aware that qemu/KVM got this feature. IIRC the device
> passthrough worked only for simpler devices like NICs...
> 
> > It's looks cool. After video card driver install i become unable to
> > work with SPICE client display. It's show only black screen with
> > Windows logo, video card output used as default.
> > 
> 
> IMHO that's expected. I'd guess that both qemu and spice-server would
> have to be modified to consume data out of physical videocard instead
> of
> some of the qemu emulated devices.
> 
> > I've got temporary solution to use VNC to access videocard
> > framebuffer but it can't used to watch movies and play games. In
> > way of using Spice i can watch movies and play old games without
> > hardware 3D-acceleration.
> > 
> > Is there way to get access to screen of passed video card from
> > Spice-client or standalone Spice-server for Windows guest is
> > needed?
> 
> Standalone spice-server for Windows doesn't exist. It does exist for
> Linux but I'm pretty sure it wouldn't be able to leverage GPU for
> OpenGL
> acceleration either. Alon?

That's right. There is a standalone X spice server, but it doesn't accelerate GL. I'm not sure if GLX would work with it, but direct rendering is out.

> 
> David
> 
> > 
> > Best regards, Boris Morozov.
> > _______________________________________________ Spice-devel mailing
> > list Spice-devel at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/spice-devel
> 
> --
> 
> David Jaša, RHCE
> 
> SPICE QE based in Brno
> GPG Key:     22C33E24
> Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
> 
> 
> 
>