Re: [Xen-users] Success VGA passthrough on windows 7 x64 with Xen 4.2.1-pre

[Dariusz Krempa <imperiaonline4@xxxxxxxxx>]

Hi.

I did some researches to find out how I did install drivers for nvidia vga under windows 7 DomU and this is my conclusion. No matter how system is prepared, Dom0 and hardware, if it works with windows xp then could work with windows 7 (my testing platform had Dom0 kernel 3.6-rc7 with xen 4.2.1-pre). Most important thing is how to foul windows to accept drivers. This is how I did this. Three separate installations of windows 7 and each time success:

1) for windows 7 installation in DomU configuration setup like this:

gfx_passthrough=0

#pci = ['1:00.0']  // in my case NVIDIA VGA BDF is 1:00.0

#pci_msitranslate = 

2) when You install windows 7 shut it down and change DomU config. show vga to windows but don't pass it thru yet:

gfx_passthrough=0

pci = ['1:00.0']  

#pci_msitranslate = 

3) start DomU and install nvidia drivers. in my case 275.33 or 275.50, both work and I didnt check newer

4) shut down DomU and setup his configuration. its finally configuration in my case :

gfx_passthrough=1

pci = ['1:00.0'] 

#pci_msitranslate = 

5*)create DomU and drivers could works and no error 43

* because my system setup i need to restart Dom0  before step 5

** if there still will be reported problem with drivers under windows 7 I will make more researches for different kernels/Dom0 configurations

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