Mailing List Archive: Newbie on VGA-Passthru

Newbie on VGA-Passthru

Aug 3, 2011, 4:52 AM

Post #1 of 5 (231 views)

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
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!

Re: Newbie on VGA-Passthru [ In reply to ]

superymkxen at hotmail

Aug 3, 2011, 8:05 AM

Post #2 of 5 (225 views)

Permalink

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.

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
> 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
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: Newbie on VGA-Passthru [ In reply to ]

pasik at iki

Aug 3, 2011, 10:06 AM

Post #3 of 5 (227 views)

Permalink

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@lists.xensource.com
> [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@lists.xensource.com
> 3. http://lists.xensource.com/xen-devel

> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Re: Newbie on VGA-Passthru [ In reply to ]

superymkxen at hotmail

Aug 4, 2011, 7:36 AM

Post #4 of 5 (224 views)

Permalink

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@lists.xensource.com
>> [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@lists.xensource.com
>> 3. http://lists.xensource.com/xen-devel
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
>

Re: Newbie on VGA-Passthru [ In reply to ]

superymkxen at hotmail

Aug 4, 2011, 7:45 AM

Post #5 of 5 (222 views)

Permalink

BTW: I use xxd command and it shows vgabios-pt.bin file size is 0xffff.
In xm dmesg, it shows "(XEN) HVM1: f0000-fffff: Main BIOS". So I think
the vgabios-pt.bin is fully loaded in this situation.

On 8/4/2011 10:36 PM, Superymk wrote:
> 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@lists.xensource.com
>>> [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@lists.xensource.com
>>> 3. http://lists.xensource.com/xen-devel
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@lists.xensource.com
>>> http://lists.xensource.com/xen-devel
>>
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>
>>
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

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