[vfio-users] IGD Passthrough - does not work with intel kabylake

[nicolas prochazka]

So for linux guest , it is a kernel i915 version problem, too old for
kabylake .
with fedora 25, 4.8.13   wayland start nicely and glxinfo is ok.

For windows, i'm trying with windows native, no success, then with last
kabylake igd driver from intel.


Is you want, i can prepare an acces to linux kabylake, or send you a nuc
Regards,
Nicolas



2017-02-02 16:45 GMT+01:00 Alex Williamson <alex.williamson at redhat.com>:

> On Thu, 2 Feb 2017 15:50:54 +0100
> nicolas prochazka <prochazka.nicolas at gmail.com> wrote:
>
> > So :
> > - Host is now in 4.11 with patch , linux guest always in 4.4.
> > -> nothing seems to be change
> > screen is divide into 3.
> >
> > - Then after :
> > https://lists.nongnu.org/archive/html/qemu-devel/2016-12/msg01600.html
> >
> > Screen is now as simple screen, so it's better but :
> > - IGD does not work,
> > under win10 => driver intel HD620 is under error.
>
> What is the error?  Are you using the driver from Intel or the one that
> ships with Windows?
>
> > under linux => as windows, screen is not divide anymore :) , but igd is
> not
> > using ( /dev/dri/card0 does not exist )
>
> Can you provide guest dmesg?
>
> FWIW, Intel seems to change their graphics hardware on every chip
> revision.  This is all too common of a problem.  Unfortunately the
> newest hardware I have access to is Broadwell.  Thanks,
>
> Alex
>
> > 2017-02-02 15:25 GMT+01:00 Manuel Ullmann <ullman.alias at posteo.de>:
> >
> > > Oops. Forgot, that it was a qemu patch against non-released
> > > qemu-2.9. Sometimes it is helpful to have a developer correcting the
> bad
> > > memory segments of mailing list subscribers. ;) So that one might
> > > actually also help. Is the Kabylake kernel fix irrelevant in this case?
> > > Thanks,
> > > Manuel
> > > > On Thu, Feb 2, 2017 at 5:54 AM, nicolas prochazka
> > > > <prochazka.nicolas at gmail.com> wrote:
> > > >
> > > >     Hello,
> > > >     We are using vfio igd passthrough :
> > > >     Win10 | Linux ubuntu : broadwell IGD / skylake IGD ( intel nuc
> > > >     plateforme )
> > > >     without problem, igd is working well .
> > > >
> > > >
> > > >     Now with the new intel nuc ( kabylake / nuc7i) ,
> > > >     Neither windows nor linux recognize intel graphic card.
> > > >     Under windows, drivers is on error, and screen is divide into 3
> > > >     screens ,
> > > >     as under Linux.
> > > >
> > > >
> > > >
> > > > Try this:
> > > >
> > > > https://lists.nongnu.org/archive/html/qemu-devel/2016-
> 12/msg01600.html
> > > >
> > > > _______________________________________________
> > > > vfio-users mailing list
> > > > vfio-users at redhat.com
> > > > https://www.redhat.com/mailman/listinfo/vfio-users
> > >
>
>
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