This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


[Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru support

To: "Kay, Allen M" <allen.m.kay@xxxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxxxxx>
Subject: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru support
From: "Huang2, Wei" <Wei.Huang2@xxxxxxx>
Date: Thu, 7 Oct 2010 23:05:36 -0500
Accept-language: en-US
Acceptlanguage: en-US
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Delivery-date: Thu, 07 Oct 2010 21:06:39 -0700
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <987664A83D2D224EAE907B061CE93D530163EA96FD@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <EE335F95F28A664DB4A21289D2AA053B8E1E9B35@xxxxxxxxxxxxxxxxxxx> <987664A83D2D224EAE907B061CE93D530163EA96FD@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: ActmP7cJfT/ottzES7Wm6TPsvkyUYwANyR9wAAkft/A=
Thread-topic: [RFC][QEMU] ATI graphics VBIOS passthru support

Hi Allen,


Thanks for testing it out. We have tested this patch with Radeon 4850, 4870, FirePro V5700 and FirePro M5800. Unfortunately we don’t have V3750 at hand. It is very possible this patch isn’t compatible with V3750. We will try to get hold of one for debugging. For graphics which work with this path, users should be able to get rid of emulated gfx (such as Cirrus). I have successfully installed a Windows guest VM using this patch.


I also want to point out that there is still an issue. Users will see a black screen after installing Catalyst driver. Even though the screen appears to be black, the driver is actually functioning correctly (3DMark can be run with external monitor). Our driver team is currently debugging it and they believe this is easy to fix.


What is your opinion on this patch (and the solution) in general?




From: Kay, Allen M [mailto:allen.m.kay@xxxxxxxxx]
Sent: Thursday, October 07, 2010 6:58 PM
To: Huang2, Wei; Ian Jackson
Cc: Xen-devel
Subject: RE: [RFC][QEMU] ATI graphics VBIOS passthru support


Hi Wei,


This patch did not cause any problems with Intel IGD passthrough for me.  However, the monitor remained blank if I pass through ATI Firepro V3750 either as the primary display device or the secondary device (gfx_passthru=1/0).  Passing it through as the secondary device used to work.


Have you tested the patch with this graphics card?




From: Huang2, Wei [mailto:Wei.Huang2@xxxxxxx]
Sent: Thursday, October 07, 2010 9:57 AM
To: Ian Jackson
Cc: Xen-devel; Kay, Allen M
Subject: [RFC][QEMU] ATI graphics VBIOS passthru support


Hi Ian,


There have been a lot of interest on gfx passthru recently. This patch enables ATI VBIOS in passthru mode. The guest VM system BIOS (including Windows boot logo) can now show in passthru screen. We have tested with various Windows and Linux guest VMs. Please help review it. We are also looking forward to comments and suggestions from Xen community users.


Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>

Signed-off-by: Wei Wang <wei.wang2@xxxxxxx>



Xen-devel mailing list