From mboxrd@z Thu Jan  1 00:00:00 1970
From: Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [PATCH 1/2] graphics passthrough with VT-d
Date: Fri, 28 Aug 2009 09:45:21 +0100
Message-ID: <C6BD57B1.1332E%keir.fraser@eu.citrix.com>
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To: "Han, Weidong" <weidong.han@intel.com>, "'xen-devel@lists.xensource.com'" <xen-devel@lists.xensource.com>
Cc: "Lin, Ben Y" <ben.y.lin@intel.com>, "Kay, Allen M" <allen.m.kay@intel.com>, Jean Guyader <Jean.Guyader@citrix.com>, "'bengheng@eecs.umich.edu'" <bengheng@eecs.umich.edu>
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On 28/08/2009 08:54, "Han, Weidong" <weidong.han@intel.com> 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.

 -- Keir

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