Re: [Xen-users] XEN 4.1.1 + IGD passthrough and Intel DQ67SW, i7-2600

[Erik Lind <zod@pointless.org>]

Hi

I have now tried with the new 3.1.0-rc3 kernel (and latest 4.2 XEN), 
with the exact same result. It passthrough works fine before loading the 
proper drivers, but hangs at startup with correct drivers.

I forgot to mention that I did try to install Win 7 on this computer 
without XEN and everything worked fine, so the drivers provided by Intel 
do work.

/Erik


On 08/28/2011 12:15 PM, Pasi Kärkkäinen wrote:
> On Sat, Aug 27, 2011 at 08:51:40PM +0200, Erik Lind wrote:
>> 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.
>>
> Did you try latest upstream Linux 3.1-rc3+ ? it includes xen-pciback.
>
>> 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.
>>
> Ok. Maybe Intel developers can comment which driver version should work with win7.
>
>
>> 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.
>>
>
> -- Pasi
>
>
>> /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
>>>
>>>
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