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

[Erik Lind <zod@xxxxxxxxxxxxx>]

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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