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