Re: Re: [PATCH 0/3] VT-d: support Intel IGD passthrough

[Weidong Han <weidong.han@intel.com>]

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Andrew Lyon wrote:
> On Fri, Feb 5, 2010 at 2:11 AM, Han, Weidong <weidong.han@intel.com> wrote:
>   
>> Current Xen only supports to pass-through primary gfx card. The secondary gfx pass-through patch is not in Xen yet. I think it needs to think more clearly about secondary gfx pass-through usage and implementation.
>>
>> Regards,
>> Weidong
>>     
>
> Do you have a patch for secondary passthru on Xen 4? I seem to recall
>   
No, we won't push this support in Xen 4, because it still needs more 
thinking about secondary gfx passthru usage and implementation.
> somebody had been successful with secondary passthru using an
> additional patch but I cannot find it.
>   
You can search subject "graphics passthrough with VT-d" in xen-devel 
mailing list. There are lots of discussion in the thread. I attached the 
mail which contains the patches for secondary gfx passthrough with some 
other hacks. You can have a try with them.

Regards,
Weidong

> I'd like to give it a try, I have one system with 2 x radeon x1950's
> and another with Quadro FX380 and GeForce 9500 GT, both currently
> running X, xen 3.4.2 with 2.6.31.12 suse patched dom0.
>
> Andy
>
>   
>> -----Original Message-----
>> From: xen-devel-bounces@lists.xensource.com [mailto:xen-devel-bounces@lists.xensource.com] On Behalf Of Christian Tramnitz
>> Sent: Thursday, February 04, 2010 8:15 PM
>> To: xen-devel@lists.xensource.com
>> Subject: [Xen-devel] Re: [PATCH 0/3] VT-d: support Intel IGD passthrough
>>
>> Thanks for updating those patches to current xen.
>>
>> Is IGD pass-through also supposed to work when the IGD is not the
>> primary gfx card?
>>
>>
>> Best regards,
>>    Christian
>>
>>
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>>     


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