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

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Dec 07, 2010 at 11:31:12PM -0600, Huang2, Wei wrote:
> Hi Pasi,
> 
> I have another patch which detects PIO and MMIO BARs on-the-fly. This should 
> address some issues seen by the community (because BAR index varies among gfx 
> generations). I will clean it up and submit it for testing in the next few 
> days.
> 

That's great! 

-- Pasi

> -Wei
> ________________________________________
> From: Pasi Kärkkäinen [pasik@xxxxxx]
> Sent: Tuesday, December 07, 2010 4:00 AM
> To: Huang2, Wei
> Cc: djmagee@xxxxxxxxxxxx; Kay, Allen M; Ian Jackson; Wang2, Wei; Xen-devel
> Subject: Re: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru support
> 
> On Wed, Oct 13, 2010 at 04:37:10PM -0500, Huang2, Wei wrote:
> >    Sorry, hold on a second. This fix seems corrupt my pci config space after
> >    several runs.
> >
> 
> Hello,
> 
> Any updates to these patches? Many users have been asking about amd/ati vga 
> passthru stuff..
> 
> -- Pasi
> 
> >
> >
> >    -Wei
> >
> >
> >
> >    From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
> >    [mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Huang2, Wei
> >    Sent: Wednesday, October 13, 2010 3:47 PM
> >    To: djmagee@xxxxxxxxxxxx; Kay, Allen M; Ian Jackson
> >    Cc: Wang2, Wei; Xen-devel
> >    Subject: RE: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru
> >    support
> >
> >
> >
> >    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>
> >
> >
> >
> >
> 
> > _______________________________________________
> > Xen-devel mailing list
> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
> 
> 
> 

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