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Re: [Xen-devel] making changes to agp code?

To: "Langsdorf, Mark" <mark.langsdorf@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] making changes to agp code?
From: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
Date: Wed, 28 Mar 2007 16:43:20 +0100
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On 28/3/07 16:21, "Langsdorf, Mark" <mark.langsdorf@xxxxxxx> wrote:

> I was playing with that box yesterday, and I discovered
> that Xen allocates guest virtual memory over the AGP
> aperture if dom0 memory is greater than 4G, even though
> the e820 map says it shouldn't.  I didn't have a lot of
> spare cycles yesterday to deal with the implications of
> that, and maybe it can be safely ignored.  Any thoughts?

What exactly do you mean? That we allocate pages from the physical address
range that includes the AGP aperture, even though this range is not marked
as RAM in the e820 map? That would be a very bad bug.

 -- Keir

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