Upstream Xen GPU Testing

To isolate the cause of the graphics passthrough issues on OpenXT, several of us have been testing the behavior of VGA passthrough on several version of upstream Xen.  If you perform tests, please update this table-- all developers should have write access!
 

Xen VersionMachineGraphics Card(s)OXT-239 Repro?*OXT-241 Repro?*OXT-243 Repro?**Notes
4.3.3Dell 9020(K2000, HD7750, W600)n/an/an/a

Ubuntu 3.13 Kernel, PCI passthrough fails 

4.3.3Dell 9020(K2000, HD7750, W600)n/an/an/a

Ubuntu 3.13 Kernel, PCI passthrough fails 

4.4.0Dell 9020K2000NoNon/a

Ubuntu 3.11 Kernel

4.4.0Dell 9020HD7750n/aYesn/a

Ubuntu 3.11 Kernel

4.4.0Dell 9020W600n/aNo*n/a

Ubuntu 3.11 Kernel, *User mode portion of driver crashes, but recovers and is operational

4.3.3HP 8300(K2000, HD7750, W600)n/an/an/aUbuntu 3.13 Kernel, PCI passthrough fails 
4.3.3HP 8300(K2000, HD7750, W600)n/an/an/aUbuntu 3.11 Kernel, PCI passthrough fails 
4.4.0HP 8300K2000n/aNon/aUbuntu 3.11 Kernel
4.4.0HP 8300HD7750n/aYesn/aUbuntu 3.11 Kernel