Re: Xen-users Digest, Vol 11, Issue 79

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Re: Xen-users Digest, Vol 11, Issue 79

Jean-Eric Cuendet (RPT)

> Since VT enabled processors are on their way out to the real world, this
> question is VERY, VERY interesting.
>
> Is there any info the Xen Gurus could share with us (Ian, William,
> Antoni, et al.)?

The question I had no answer since the beginning is how will Windows be
able to use display (Graphic card) while in domU?
Will it be the "owner" of the PCI/AGP card? Or wil it have a "fake" card
that is then bridged by Xen to the real one when asked?
Or will I need 2 Graphic cards in the same machine?

Thanks
-jec


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Re: Re: Xen-users Digest, Vol 11, Issue 79

jyro
Yeah I am also interested in an answer to this question.

As I understand, the main drivers that I have yet heard of xen supporting are net, block device and USB. For allowing the domU access to graphics card, one will have to write front end and back end for the VGA driver. Has anyone already written this?

Jec, if you are worried about using special features of the graphics card in domU instances, then I am afraid that will be difficult (please correct me if I am wrong in this). As I understand it, if the access to graphics hardware is going to be through front/back design, then the domU front end driver will be very generic and won't give access to all special features of native graphics card.

My interest in this topic is from the driver design point of view. Otherwise I understand that Xen's priority is virtualization in enterprise environment and not game playing on desktop.

Thanks,
Jayesh

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