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Re: [Xen-devel] RE: [XCI] result of pci vga passthrough

To: Jun Koi <junkoi2004@xxxxxxxxx>
Subject: Re: [Xen-devel] RE: [XCI] result of pci vga passthrough
From: Jean Guyader <jean.guyader@xxxxxxxxx>
Date: Wed, 15 Apr 2009 12:06:59 +0100
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Tim Moore <timothy.moore@xxxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
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2009/4/15 Jun Koi <junkoi2004@xxxxxxxxx>:
> On Wed, Apr 15, 2009 at 7:58 PM, Jean Guyader <jean.guyader@xxxxxxxxx> wrote:
>> 2009/4/15 Jun Koi <junkoi2004@xxxxxxxxx>:
>>> On Wed, Apr 15, 2009 at 7:44 PM, Jean Guyader <jean.guyader@xxxxxxxxx> 
>>> wrote:
>>>> Hi,
>>>> XCI support pass through as a primary display adpater, the patch are
>>>> not into xen unstable.
>>> Does that mean we use only 1 video card (primary), and use it for
>>> DomU? Then Dom0 has no video card?
>> I mean pass through as a primary in the guest, for doing so we have to:
>>  - Rexecute the bios
>>  - Map the legacy iomem
>>  - Map the legacy ioport
>> dom0 could have a graphic card be it's not required.
> So we can have 2 cards, and pass one to DomU, and DomU sees that as
> primary video card?
> I searched around, but dont see where to download XCI??

Yes, that the tricks to make it works with intel graphic card, but I
thing it won't change anything for nvidia or ati card.


clone build.git and then there is a readme inside.
Don't hesitate if you have any further questions.


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