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RE: [Xen-devel] [PATCH 1/2] graphics passthrough with VT-d

To: 'Keir Fraser' <keir.fraser@xxxxxxxxxxxxx>, "'xen-devel@xxxxxxxxxxxxxxxxxxx'" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH 1/2] graphics passthrough with VT-d
From: "Han, Weidong" <weidong.han@xxxxxxxxx>
Date: Fri, 28 Aug 2009 16:46:49 +0800
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Cc: "Lin, Ben Y" <ben.y.lin@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx>, 'Jean Guyader' <Jean.Guyader@xxxxxxxxxx>, "'bengheng@xxxxxxxxxxxxxx'" <bengheng@xxxxxxxxxxxxxx>
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Thread-topic: [Xen-devel] [PATCH 1/2] graphics passthrough with VT-d
Keir Fraser wrote:
> On 28/08/2009 08:54, "Han, Weidong" <weidong.han@xxxxxxxxx> wrote:
>> This patch supports basic gfx passthrough on xen side:
>>   - retrieves VGA bios from host VGA BIOS address (0xC0000), then
>> load it to guest VGA BIOS address (This is the same with XCI).
>>   - Enlarge guest MMIO range to contain gfx card's large memory
> Hvmloader will auto-size the MMIO hole. You shouldn't need to change
> the default initial size of the hole.

Ok. I will remove the change. Thanks.


>  -- Keir
>>   - add a config option 'gfx_passthru' for gfx passthrough

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