On Fri, Dec 17, 2010 at 01:03:14AM -0600, Wei Huang wrote:
> Hi Pasi,
>
> Users can do it in setup_vga_pt() in pt-graphics.c with something like:
>
> + int fd;
> + fd = open("/tmp/downloaded_vbios.bin", O_RDONLY);
> + bios_size = read(fd, bios, bios_size);
> + close(fd);
>
> Then we can pass bios_size and bios to cpu_physical_memory_rw()
> function.
>
Yep, I know, but I was thinking of making it easier for users
to experiment with VGA passthru.. not having to modify the sources
and re-compile.
Thanks anyway :)
-- Pasi
>
> On Thu, 2010-12-16 at 12:29 -0600, Pasi Kärkkäinen wrote:
> > On Mon, Dec 13, 2010 at 02:33:02PM -0600, Huang2, Wei wrote:
> > > Hi Sander,
> > >
> > > I answer your questions (including the one from last email) below:
> > >
> > > 1. Your gfx is a bit old. Some of the tricks (such as MMINDEX values
> > > 0x4010) aren't quite consistent across different generations of ATI gfx.
> > > I need to look at the log myself. I will locate an HD3000 card to debug.
> > > 2. The goal of this patch is to passthru the primary gfx as THE ONLY GFX
> > > inside guest VM (namely: my patch + set gfx_passthru=1 in guest config
> > > file). Since you are passthru the on-board secondary gfx, I am not sure
> > > qemu-dm is copying the correct VBIOS from address 0xc0000. One solution
> > > is to force VBIOS been read from a file, which can be downloaded from
> > > http://www.techpowerup.com/vgabios/.
> > >
> >
> > Do you happen to have a patch that allows specifying the file to load the
> > vga bios
> > from in the xen /etc/xen/<guest> cfgfile ?
> >
> > That'd be helpful for the time being..
> >
> > -- Pasi
> >
> > > 3. Note that current Xen support passthru ATI gfx as a secondary gfx,
> > > even without my patch. So if you don't care about primary/secondary, you
> > > probably don't need this patch. Have you tried: existing Xen + passthru
> > > ATI without gfx_passthru=1? As for as I have seen, it worked for many ATI
> > > gfx.
> > >
> > > Thanks,
> > > -Wei
> > >
> > > -----Original Message-----
> > > From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx]
> > > Sent: Monday, December 13, 2010 2:18 PM
> > > To: Huang2, Wei
> > > Cc: Keir Fraser; Xen-devel; Ian Jackson; Kay, Allen M; Wang2, Wei;
> > > djmagee@xxxxxxxxxxxx
> > > Subject: Re: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru
> > > support
> > >
> > > Hello Wei,
> > >
> > > It just occured to me, this is probably only working when trying to
> > > passthrough the primary graphics card ?
> > > I'm trying to passthrough a secondary card, so the primary(boot) card
> > > still has the xen/dom0 console.
> > >
> > > It could end up giving problems by loading the wrong/no bios in the
> > > hvmloader ?
> > >
> > > Should passing though a secondary graphics card also be possible with
> > > this patch ?
> > >
> > > --
> > > Sander
> > >
> > > Sunday, December 12, 2010, 7:19:08 AM, you wrote:
> > >
> > > > This patch isn't meant to be final version. The stubdom issue was known
> > > > to me. Users can just compile qemu-dm and copy it to overwrite existing
> > > > Xen installation for a quick testing.
> > >
> > > > Thanks,
> > > > -Wei
> > > > ________________________________________
> > > > From: Keir Fraser [keir.xen@xxxxxxxxx] On Behalf Of Keir Fraser
> > > > [keir@xxxxxxx]
> > > > Sent: Saturday, December 11, 2010 9:38 AM
> > > > To: Sander Eikelenboom; Huang2, Wei
> > > > Cc: Xen-devel; Ian Jackson; Kay, Allen M; Wang2, Wei;
> > > > djmagee@xxxxxxxxxxxx
> > > > Subject: Re: [Xen-devel] RE: [RFC][QEMU] ATI graphics VBIOS passthru
> > > > support
> > >
> > > > The patch would need some work to make it suitable for check in and get
> > > > it
> > > > working for stubdom. At the very least the ioperm() calls would need
> > > > removing completely, or stubbing out for the stubdom build.
> > >
> > > > -- Keir
> > >
> > > > On 11/12/2010 14:06, "Sander Eikelenboom" <linux@xxxxxxxxxxxxxx> wrote:
> > >
> > > >> Do i need any previous patches for this to work ?
> > > >>
> > > >> After applying it to xen-unstable, compiling xen results in:
> > > >>
> > > >> make[2]: Entering directory
> > > >> `/usr/src/new/xen-unstable.hg/extras/mini-os'
> > > >> [ -e include/xen ] || ln -sf ../../../xen/include/public include/xen
> > > >> [ -e include/mini-os ] || ln -sf . include/mini-os
> > > >> [ -e include/x86/mini-os ] || ln -sf . include/x86/mini-os
> > > >> make --directory=arch/x86
> > > >> OBJ_DIR=/usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/arch/x86
> > > >> ||
> > > >> exit 1;
> > > >> make[3]: Entering directory
> > > >> `/usr/src/new/xen-unstable.hg/extras/mini-os/arch/x86'
> > > >> make[3]: Nothing to be done for `all'.
> > > >> make[3]: Leaving directory
> > > >> `/usr/src/new/xen-unstable.hg/extras/mini-os/arch/x86'
> > > >> ld -r -nostdlib
> > > >> -L/usr/src/new/xen-unstable.hg/stubdom/cross-root-x86_64/x86_64-xen-elf/lib
> > > >> -m elf_x86_64
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/arch/x86/x86_64.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os_app.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/blkfront.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/events.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/fbfront.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/fs-front.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/gntmap.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/gnttab.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/hypervisor.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/kernel.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lock.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/main.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mm.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/netfront.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/pcifront.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/sched.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/ctype.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/math.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/printf.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/stack_chk_fail.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/string.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/sys.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/xmalloc.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lib/xs.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/xenbus/xenbus.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/console/console.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/console/xencons_ring
> > > >> .o /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/lwip.a
> > > >> -L/usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/arch/x86
> > > >> -lx86_64
> > > >> -lc -o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o
> > > >> objcopy -w -G xenos_* -G _start
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o
> > > >> ld -nostdlib
> > > >> -L/usr/src/new/xen-unstable.hg/stubdom/cross-root-x86_64/x86_64-xen-elf/lib
> > > >> -m elf_x86_64 -T arch/x86/minios-x86_64.lds
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o -o
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o: In
> > > >> function `ati_hw_out':
> > > >> /usr/src/new/xen-unstable.hg/stubdom/ioemu/hw/pt-graphics.c:82:
> > > >> undefined
> > > >> reference to `ioperm'
> > > >> /usr/src/new/xen-unstable.hg/stubdom/ioemu/hw/pt-graphics.c:84:
> > > >> undefined
> > > >> reference to `ioperm'
> > > >> /usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os.o: In
> > > >> function `ati_hw_in':
> > > >> /usr/src/new/xen-unstable.hg/stubdom/ioemu/hw/pt-graphics.c:72:
> > > >> undefined
> > > >> reference to `ioperm'
> > > >> /usr/src/new/xen-unstable.hg/stubdom/ioemu/hw/pt-graphics.c:74:
> > > >> undefined
> > > >> reference to `ioperm'
> > > >> make[2]: ***
> > > >> [/usr/src/new/xen-unstable.hg/stubdom/mini-os-x86_64-ioemu/mini-os]
> > > >> Error 1
> > > >> make[2]: Leaving directory
> > > >> `/usr/src/new/xen-unstable.hg/extras/mini-os'
> > > >> make[1]: *** [ioemu-stubdom] Error 2
> > > >> make[1]: Leaving directory `/usr/src/new/xen-unstable.hg/stubdom'
> > > >> make: *** [install-stubdom] Error 2
> > > >>
> > > >> Don't know why the include of sys/io.h doesn't seem to work
> > > >> --
> > > >>
> > > >> Sander
> > > >>
> > > >> Saturday, December 11, 2010, 12:40:19 AM, you wrote:
> > > >>
> > > >>> Hi,
> > > >>
> > > >>> The attached patch supports dynamic detection of BARs (both MMIO and
> > > >>> PIO). Hopefully it can alleviate some of the issues you saw with ATI
> > > >>> gfx
> > > >>> passthru. Please let me know whether it works better for you.
> > > >>
> > > >>> Thanks,
> > > >>> -Wei
> > > >>
> > > >>> On 12/07/2010 04:00 AM, Pasi Kärkkäinen wrote:
> > > >>>> 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
> > > >>>>
> > > >>
> > > >>
> > > >>
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > --
> > > Best regards,
> > > Sander mailto:linux@xxxxxxxxxxxxxx
> > >
> > >
> > >
> > >
> > > _______________________________________________
> > > Xen-devel mailing list
> > > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > > http://lists.xensource.com/xen-devel
> >
>
>
>
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