Re: [Xen-devel] [PATCH(es)] graphics passthrough with VT-d

["Mr. Teo En Ming (Zhang Enming)" <enming.teo@xxxxxxxxxxxxxxx>]

Dear Alan,

When I extracted the vga bios for my nvidia geforce 8400 gs, i went into 
BIOS to set PEG as the primary video adapter. Then I booted using nvidia 
gfx and extracted the vga bios using nvflash.exe.
I believe it is possible to use a hex editor to examine the vga firmware 
file to see if it's the vga bios for nvidia.
--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) 
BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
Alma Maters: Singapore Polytechnic, National University of Singapore



On 08/29/2009 12:36 AM, Alan Cox wrote:
> > I believe the VGA BIOS in the physical memory region 0xC0000 to 0xC7FFF
> > is the vga bios of onboard Intel graphics, and not my Geforce 8400 GS.
> >      
> If that was your boot video device. To extract the video BIOS for the
> Nvidia you either need to map it and read it out or boot with the Nvidia
> as the boot video device to acquire it and then switch back. That ought
> to work.
>
> Alan
>    



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