Hi Pasi,
and thank you for your reply.

Currently I use Debian squeeze as Dom0,
I use a kernel from the devel/xen-pciback-0.6.1 branch at 
git.kernel.org/?p=linux/kernel/git/konrad/xen.git. It is a 3.0.0-rc4 
based kernel.

I have been trying for the last day to get some other Dom0 kernel to 
work but I have so far been unable to get the pciback module to work on 
those kernels (such as the master branch or stable/2.6.39.x). I do 
prefer a fairly late kernel to get problem support for the motherboard 
and cpu.

I have been using a few different Intel drivers, the ones included in 
Windows 7 which are from March and newer ones ( from mid August) but 
with the same result.

I have been trying with a few different boot options, but the last try 
was with the most basic configuration possible. (included as grub.conf.gz)

Also included is the somewhat messy vm config file, xen_htpc1.cfg.gz

I have included startup logs for two different runs, one with Windows 
standard vga drivers (taged with svga_) and with Intel drivers (taged 
with intel_). Not sure if that gives any further clues.

I also added info from lspci -vv.

/Erik

On 08/26/2011 03:31 PM, Pasi Kärkkäinen wrote:
> On Sat, Aug 20, 2011 at 01:59:07PM +0200, Erik Lind wrote:
>> Hi
>>
> Hi,
>
> added xen-devel to cc.
>
>> I'm running XEN 4.1.1 (have tested 4.2 unstable too) and I'm trying to
>> do graphics passthrough of my on board/chip GPU.
>>
> What distro is dom0? and what dom0 kernel?
>
>> I have been struggling for quite some time without success.
>>
>> Passthrough as such does work but when loading the proper drivers for
>> the GPU it does not, and then Windows just stops loading.
>>
> What version of Intel gfx drivers?
>
>
>> First attempt was to use Windows 7, I did try both 32 and 64 bit
>> versions and it did not work.
>>
>> Then I did an attempt with XP 32bit and to much surprise it did work (at
>> least it starts up properly haven't tested it that much yet).
>>
>> After that I tried with Vista 32 bit, just to see, and it did not work.
>>
>> In short I suppose there is some issue with the gfx drivers for Vista
>> and Windows 7 or possibly there is some other difference between the
>> OS:es. Or is it just something else that I'm missing?
>>
>> Has anyone been able to get XEN and IGD passthrough to work with proper
>> drivers in Windows 7 and fairly new HW? Any suggestions how to proceed
>> with troubleshooting?
>>
>> Thanks in advance
>>
> Please also post your grub.conf entry and /etc/xen/<vm>  cfgfile!
>
> -- Pasi
>
>