[vfio-users] AMD + Nvidia + WIn 8.1 + hv_vendor_id + QEMU GIT == hang on boot

[David Sutton]

All,

  After watching the list and seeing the hv_vendor_id patch, I decided to
try and see if it would help with my setup; This system is running Arch (
linux-lts 4.1.12 kernel ) on an AMD FX-8350, an Nvidia 780 being passed
through to a Windows 8.1 Pro guest.

  I installed the qemu-git package, created a wrapper script to update the
options
"host,kvm=off,hv_time,hv_relaxed,hv_vapic,hv_spinlocks=0x1fff,hv_vendor_id=vendor"
and tried to boot. It passed through the OVMF boot screen to the Windows
loading screen, and then seems to hang (dots stop rotating) with 100% CPU
usage showing under VMM.

  Is there anything else that I should be doing in order to make this work?
I've tried passing a blank vendor id, patching qemu 2.4.1 with the
hv_vendor_id patch and using it, but nothing has worked so far.

Regards,

  David
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