Xen devel - Oct 2012 - Upstream QEMU and GPU Passthrough

Hello,

for us GPU Passthrough Customers there is one thing left for total 
happiness (at least for me):
Working Upstream QEMU - simply because it brings a sound device which 
hast working x64 drivers (intel-hda).

Afaik Upstream QEMU does not yet work with GPU-PCI Passthrough.

I have to admit i haven''t tried it, but perhaps Anthony (or others) 
could clarify what''s missing in Upstream QEMU (or xen) to make it work

Thanks!
Greetings
Tobias