Re: [Xen-devel] Newbie on VGA-Passthru

[Superymk <superymkxen@xxxxxxxxxxx>]

Hi Pasi,

Thanks for your reply. I've read the link you provide. I even redo the 
experiment with the xen-unstable version and use merely 1 vga graphics 
card according to 
http://xen.1045712.n5.nabble.com/Patches-for-VGA-Passthrough-XEN-4-2-unstable-tt4406265.html. 
It still shows only the qemu console in vnc client.
I also follow the 
link:http://lists.xensource.com/archives/html/xen-devel/2011-05/msg01471.html. 
But it still produce the same result.
I attach the log and lspci result. I find that my video card has the 
same memory address range with the one in 
http://lists.xensource.com/archives/html/xen-devel/2011-05/msg01471.html. So 
I think the patch should work to me, but it is not. Also, I am confused 
with this line "register_real_device: Real physical device 03:00.0 
registered successfuly!". Why it doesn't boot OS normally if the vga 
card is registered successfully? The DomU has WinXP installed.
Any suggestion? Please figure it out if I still miss something. Thanks!

--Miao

On 8/4/2011 1:06 AM, Pasi Kärkkäinen wrote:
> On Wed, Aug 03, 2011 at 11:05:37PM +0800, Superymk wrote:
> >     Pardon me if I should create this mail thread in other mail lists.
> >
> >     I just tried to assign the network card to the DomU and the device can be
> >     identified in it. But it is not the same case with the VGA card.
> Did you read: http://wiki.xen.org/xenwiki/XenVGAPassthrough ?
>
> -- Pasi
>
> >     Thanks,
> >     Miao
> >
> >     On 8/3/2011 7:52 PM, Superymk wrote:
> >
> >       Hi all, sorry to bother.
> >
> >       I'd like to ask how to enable HVM based vga-passthru of the secondary
> >       graphics adapter on Xen-4.1-testing?
> >       Now DomU only shows the qemu console after started.
> >
> >       My box's configuration is i7 965 + DX58SO + 2* Nvidia 9800 GTX. I use
> >       CentOS 5.6, checkout xen-4.1-testing.hg and jeremy's kernel (2.6.32.43).
> >
> >       I am trying to enable vga-passthru on my box by patching the first four
> >       patches according to
> >       
> > [1]http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html.
> >       It seems all hunks are patched successfully. In order to fix the compile
> >       errors. I modified the pass-through patch to make the hunk #1 to be
> >       placed in the middle of the pass-through.c file.
> >
> >       I attached the domU config file (winxp), dom0 lspci output (lspci), xl
> >       dmesg output (xldmesg). The pci of the secondary graphics card is
> >       03:00.0
> >
> >       Grub config:
> >
> >       title CentOS (2.6.32.43-xen)
> >           root   (hd0,0)
> >              kernel  /boot/xen-4.1.gz dom0_mem=1024M loglvl=all
> >       guest_loglvl=all iommu=1
> >              module  /boot/vmlinuz-2.6.32.43 root=LABEL=/ ro
> >       xen-pciback.hide=(03:00.0)
> >              module  /boot/initrd-2.6.32.43.img
> >
> >       Thanks a lot!
> >
> >   _______________________________________________
> >   Xen-devel mailing list
> >   [2]Xen-devel@xxxxxxxxxxxxxxxxxxx
> >   [3]http://lists.xensource.com/xen-devel
> >
> > References
> >
> >     Visible links
> >     1. http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html
> >     2. mailto:Xen-devel@xxxxxxxxxxxxxxxxxxx
> >     3. http://lists.xensource.com/xen-devel
> > _______________________________________________
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> > Xen-devel@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-devel
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Attachment: qemu-dm-winxp.log
Description: Text document

Attachment: xldmesg
Description: Text document

Attachment: lspci
Description: Text document

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