Hi Allen and Doug,
Could you fix the following line in save_pci_conf_space()
of tools/python/xen/util/pci.py?
“for i in range(0, 256, 4):” to “for i in
range(0, 512, 4):”
This solves my black screen issue. Please let me know the
results.
Thanks,
-Wei
From:
djmagee@xxxxxxxxxxxx [mailto:djmagee@xxxxxxxxxxxx]
Sent: Friday, October 08, 2010 10:53 AM
To: Huang2, Wei; Kay, Allen M; Ian Jackson
Cc: Xen-devel; Wang2, Wei
Subject: RE: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru
support
Wei,
These were guests that had never seen the catalyst driver before. I
booted each three with the graphics device and usb devices assigned, they
worked fine using the basic VGA driver, then installed fresh Catalyst 10.9,
rebooted, and each one crashed.
Let me know if there’s any other info I can provide that will help you
debug. The motherboard is a DQ45CB, running xen-unstable c/s 22155 using
‘dom0_mem=768M iommu=1’ on the grub line, and using pvops Dom0 from
stable-2.6.32.x commit 179eca50.
Doug Magee
From: Huang2, Wei
[mailto:Wei.Huang2@xxxxxxx]
Sent: Friday, October 08, 2010 11:41 AM
To: djmagee@xxxxxxxxxxxx; Kay, Allen M; Ian Jackson
Cc: Xen-devel; Wang2, Wei
Subject: RE: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru
support
Hi Doug,
Regarding Catalyst driver, we never
saw guest crashing. Was it a fresh Catalyst installation or an existing guest
image? We felt this VBIOS patch might not provide all necessary resources to
driver, which got upset. Currently we are debugging it with our driver team and
will let you know the update.
Thanks,
-Wei
From:
djmagee@xxxxxxxxxxxx [mailto:djmagee@xxxxxxxxxxxx]
Sent: Friday, October 08, 2010 9:41 AM
To: Huang2, Wei; Kay, Allen M; Ian Jackson
Cc: Xen-devel
Subject: RE: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru support
Wei,
I’ve tested with a Radeon 4770 and it the VBIOS works without a problem,
through many guest (re)boots, so it seems pretty solid. I tested a linux
guest (fairly standard Fedora 12), Windows XP, and Windows 7 (without
accelerated drivers). The open radeon linux driver works fine.
The
Catalyst driver fails in Windows XP (STOP 0x000000EA, thread stuck in device
driver), windows 7 (STOP 0x00000116, driver fails to properly reset?), and
linux (total system freeze). This seems to be different than the ‘Blank
Screen’ problem you report, as the driver is clearly not functioning properly.
Doug Magee
From:
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Huang2, Wei
Sent: Friday, October 08, 2010 9:57 AM
To: Kay, Allen M; Ian Jackson
Cc: Xen-devel
Subject: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru support
Hi Allen,
Yes, Catalyst driver is the one
from public website. The driver still has a minor issue with this VBIOS
patch. The purpose of submitting VBIOS patch is to get community feedbacks.
After we figure out the root cause of black screen, I will formally submit a
patch for inclusion.
Thanks,
-Wei
From: Kay, Allen M
[mailto:allen.m.kay@xxxxxxxxx]
Sent: Friday, October 08, 2010 2:21 AM
To: Huang2, Wei; Ian Jackson
Cc: Xen-devel
Subject: RE: [RFC][QEMU] ATI graphics VBIOS passthru support
Hi Wei,
Is Catalyst driver the one on
AMD website? I think that’s what I have in my win7 guest and it matches
the symptom you are describing. “lspci” reports my ATI card is a V5700 –
although it says v3750 on the box. Where can I get a working driver?
The patch looks reasonable to me
in general.
Allen
From: Huang2, Wei
[mailto:Wei.Huang2@xxxxxxx]
Sent: Thursday, October 07, 2010 9:06 PM
To: Kay, Allen M; Ian Jackson
Cc: Xen-devel
Subject: RE: [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?
-Wei
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?
Allen
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>
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