Re: [Xen-devel] one video card - can I PCI-pass-through to DomU?

[Weidong Han <weidong.han@xxxxxxxxx>]

Alexander Ivanov wrote:
> Hello guys,
> first want to say that I've been a happy user of Xen for about 6 
> months already - replaced bunch of old servers with just 2 machines 
> reducing power consumption and increasing reliability at the same time 
> (not speaking about systems maintenance!).
> But now I got a problem. In short - is it possible to "PCI 
> pass-though" to HVM guest the only graphical card on a physical server?
> I've been running several servers with Xen (3.4.2/3.4.3) with a bunch 
> of VMs (both PV and HVM, Win/Linux) and it works great. Now I have one 
> Windows application that seems can't be virtualized due to some 
> graphics activity (basically lot of grids needs to be displayed and 
> updated - and it all in Visual Basic) - neither standard VGA or cirrus 
> logic modes can render it so it would perform good enough. So the idea 
> is to give my physical server's card to this particular VM.
> I guess if I would have 2 video cards in the server passing through 
> the second card to HVM (windows 2003x32 server) would be not a 
> problem, would it? But if I only have 1 card - is it possible at all?
You can assign the only one gfx card to guest. then you need to access 
host via network or serial console, etc.
Regards,
Weidong

> Thank you,
> Alex

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