Re: [Qemu-devel] Regarding Intel IGD passthru support for QEMU/KVM

[Gerd Hoffmann]

  Hi,

> Based on the Intel IGD passthru support that has been added to
> Qemu/Xen code base, is there any way to use/reuse the same logic
> currently to have a successful passthru of an Intel IGD with Qemu/KVM
> on a Linux host(Ubuntu x86_64) or will that require some more
> work in addition to what Xen code based already has for the IGD
> passthru?

If you feel a bit adventurous you can try whenever current git master
(or 4.5-rc1 when Linus releases it next weekend) as guest kernel works
for you.

Recent linux kernels seem to not require the host bridge tweaks any
more.  A patch to recognize the qemu q35 south bridge has been added in
the merge window.

So using the q35 machine type + vfio passthrough without any special igd
tweaks has a fair chance to work.  opregion support isn't there yet, so
don't expect laptop panels work correctly.

cheers,
  Gerd