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

Alex Williamson alex.williamson at redhat.com
Fri Feb 17 15:32:34 UTC 2017


On Fri, 17 Feb 2017 10:43:57 +0100
nicolas prochazka <prochazka.nicolas at gmail.com> wrote:

> hello again,
> How can help you to try to analyse this failure ?  some debug option ?

A Code 43 is the Intel driver finding some error or configuration that
it doesn't like.  This is unexpected for IGD and I have no recipe for
debugging it.  Theoretically anything Broadwell or newer should be
supported in UPT mode (see docs/igd-assign.txt).  This involves running
the assigned IGD device as secondary to a primary emulated graphics in
the VM.  KVMGT, aka vGPUs, should also work with Broadwell and newer,
it's possible Intel has broken some aspect of direct assignment in
enabling this new functionality.  Thanks,

Alex




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