[Xen-devel] VGA passthrough nVidia NVS 295

[Helmut Wieser <helmut.wieser@xxxxxxxx>]

I want to try to get VGA passthrough working in a Windows 7 x64 domU.
I'm running debian squeeze/testing/unstable with Jeremy's 2.6.32.x kernel.
The best I got to work is the device showing up under Windows 7, with 
all resources and whatnot.
I've applied the vga-loadbios patch and vBAR-pBAR patch to xen, and the 
vBAR-pBAR patch to qemu-dm.
This behaviour isn't stable though. Sometimes I can log on and then domU 
crashes with a BSoD (nvlddmkm.sys). Sometimes I can log on and actually 
do something. But certain operations, like changing display options or 
checking device manager details cause a BSoD.
The NVS 295 is based on a G98, which isn't to dissimilar from Eming's 
GeForce 8400GS. He only states he used 2.6.30-rc3 with some upstream 
patches, but not more.
Has anyone succeeded in passing thru an nVidia graphics card to a 
Windows 7 x64 guest?
Should I try Windows XP, would that make a difference?

regards,
Helmut

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