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Re: [Xen-devel] [PATCH] qemu-xen: Intel GPU passthrough, fix OpRegion mapping.

To: Jean Guyader <jean.guyader@xxxxxxxxxxxxx>
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Thu, 1 Dec 2011 18:42:54 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, allen.m.kay@xxxxxxxxx
Delivery-date: Thu, 01 Dec 2011 18:43:43 +0000
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Jean Guyader writes ("[Xen-devel] [PATCH] qemu-xen: Intel GPU passthrough, fix 
OpRegion mapping."):
> The OpRegion shouldn't be mapped 1:1 because the address in the host
> can't be used in the guest directly.

I confess that I don't understand this area of the code at all.  Would
anyone like to comment on this patch ?

Ian.

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