Re: VGA passthrough nVidia NVS 295

[Helmut Wieser <helmut.wieser@ieee.org>]

Hi,

Yep, I used a free-dos USB stick for that. That brought back memories! ;-)
I tried several kernels, none work fine. And then there is also the 
netback_uevent issue, which makes me reboot dom0 in order to reboot a 
domU. Very annoying!
Can you post your kernel version and config?
What chipset/gfx card do you use?

regards,
Helmut

On 04.06.2010 16:09, Tobias Geiger wrote:
> Hi,
>
> i never tried passing vga through to a linux domU, sorry.
> but with winxp i have no stability problems whatsoever - which may back up
> your suggestions that either your xen/kernel combo is unstable or your
> hardware is.
>
> did you read out the vgabios for qemu-dm correctly (vgabios-pt.bin) ?
>
> Greetings
> tobias
>
> Am Freitag 04 Juni 2010 15:07:55 schrieb Helmut Wieser:
>    
>> Hi Tobias,
>>
>> Yes, I get the exact same error. Googling didn't reveal much. I don't
>> get this error in Windows XP though, but I do get other issues.
>> None are concise, so I think my Xen / Kernel version combo is unstable,
>> or my hardware is.
>> I'm running on a Intel 5520 chipset with dual E5620 Xeon and a Nvidia
>> Quadro NVS 295, G98.
>>
>> Were you more successful in passing through to a Linux domU?
>>
>> The chipsets and CPUs are well supported, only the graphics card didn't
>> show up anywhere.
>>
>> regards,
>> Helmut
>>
>> On 03.06.2010 15:47, Tobias Geiger wrote:
>>      
>>> Hi Helmut,
>>>
>>> i had the same experience with my setup regarding windows7.
>>> The good news is, there are no such problems with winxp.
>>>
>>> Disabling the "Timeout Detection and Recovery (TDR)" Feature in the win7
>>> registry doesn't help for my nvlddmkm.sys BSOD, but if i interpret the
>>> countless google hits regarding  "nvlddmkm.sys 0x00000116" (the
>>> Error-Code that always appears in the win7 BSOD - is yours also always
>>> the same?), it's hard to come to a solution:
>>> Some say its a driver-issue, memory timings, powersupply unit... OTOH it
>>> may be that Windows 7 is using a feature winxp doesnt, and which doesn't
>>> get passed through correctly.
>>>
>>>
>>> Greetings
>>> Tobias
>>>
>>> Am Mittwoch 02 Juni 2010 13:04:10 schrieb Helmut Wieser:
>>>        
>>>> 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
>>>>
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@lists.xensource.com
>>>> http://lists.xensource.com/xen-devel
>>>>          
>>> _______________________________________________
>>> Xen-devel mailing list
>>> Xen-devel@lists.xensource.com
>>> http://lists.xensource.com/xen-devel
>>>        
>> _______________________________________________
>> Xen-devel mailing list
>> Xen-devel@lists.xensource.com
>> http://lists.xensource.com/xen-devel
>>
>>      
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>
>