Re: [Xen-users] VGA passthrough secondary 9600GT to win7 successful but code 12

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Sun, Nov 21, 2010 at 11:45:59AM -0500, david myers wrote:
>    This is my first time posting,  sorry if i don't use the proper etiquette.
> 
>    I've successfully passed through my secondary GPU to a windows 7 hvm.
> 
>    Configuration:
>    Secondary GPU is 9600 GT
>    dom0 is jeremy's pvops
>    xen source xen-4.0.2-rc1-pre
>    Patches from applied
>    http://lists.xensource.com/archives/html/xen-devel/2010-05/msg00441.html
>    MSI.9600.GT.bin as /tools/firmware/vgabios/vgabios-pt.bin
> 
>    I get into windows 7 on the passed GPU's monitor no problem,  but windows
>    device manager reports
>    (Code 12)  the device can not find enough available resources
> 
>    How / where would I allocate more resources to this device ?
> 
>    I thought it may have something to do with the vBAR pBAR patch,  I had
>    tried mapping my devices memory according to lspci -v output,  but I'm not
>    entirely sure I did it right,  because it wouldnt work afterwards,  and i
>    reverted to the patch AS-IS after that to get it working again.
> 
>    for my 9600 GT lspci -v
>        Memory at fa000000 (32-bit, non-prefetchable) [disabled] [size=16M]
>        Memory at c0000000 (64-bit, prefetchable) [disabled] [size=512M]
>        Memory at f8000000 (64-bit, non-prefetchable) [disabled] [size=32M]
> 
>    +                    /* reserve MMIO BARs of gfx for 1:1 mapping */
>    +                    DWordMemory(
>    +                        ResourceProducer, PosDecode, MinFixed, MaxFixed,
>    +                        Cacheable, ReadWrite,
>    +                        0x00000000,
>    +                        0xC0000000,      <- I only replaced this value in
>    the 3 DWordMemory sections
>    +                        0xEFFFFFFF,
>    +                        0x00000000,
>    +                        0x10000000)
> 
>    I'm guessing some of the other values are relating to the range,  I'm not
>    sure.
> 
>    Not entirely sure this is my issue either,  as it does seem to be passing
>    through without changing the patches values at all,  but I appreciate any
>    pointers anybody could provide me with to solve the Code 12.
> 

Hmm.. I guess that means the correct bars weren't mapped.
I think this is more of a question for xen-devel ..

-- Pasi


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