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Re: [Xen-devel] possible to give/switch direct graphics hw access to dom

To: "Petersson, Mats" <Mats.Petersson@xxxxxxx>
Subject: Re: [Xen-devel] possible to give/switch direct graphics hw access to doms?
From: Muli Ben-Yehuda <muli@xxxxxxxxxx>
Date: Thu, 4 May 2006 14:32:24 +0300
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Jean Blignaut <jean@xxxxxxxxxxx>
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On Thu, May 04, 2006 at 01:26:21PM +0200, Petersson, Mats wrote:

> The solution is an IOMMU device, which is basicly a translation system
> to translate a "fake physical" to "actual physical" address. There is a
> GART in the AMD x86-64 processors that COULD be used for this purpose,
> but currently there's no code to support this [although I believe it's
> being worked on]. 

Does gart provide a 0-based IO space? I don't recall that it does. Or
do you have in mind a scheme where a 0-based IO address isn't


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