Re: VGA passthrough problems with GeForce GTS 250 and P7Q57-M DO (also: LGA1156 boards with working VT-d)

["\"Mr. Teo En Ming (Zhang Enming) 张恩鸣 of Singapore\"" <space.time.universe@gmail.com>]

Dear Andrew,

I have briefly glimpsed through the technical specifications of your 
ASUS motherboard.

http://www.asus.com/product.aspx?P_ID=XSm0g8qR5qb7UN30

At present, Xen 4.0.1 only supports Intel integrated graphics (IGD) VGA 
passthrough. Add-on PCI Express x16 graphics cards are not supported 
yet. Patches, which are currently unavailable, have to be applied to Xen 
4.0.1. You may wish to passthrough your onboard VGA instead of your 
NVIDIA GeForce GTS display card.

I am getting stability issues in VGA passthrough with Intel integrated 
graphics (IGD), Xen 4.0.1, and pv-ops dom0 kernel 2.6.32.21 on my Intel 
Desktop Board DQ45CB. Windows XP HVM domU crashes with a BSOD within 2 
minutes after booting up.

Please try out Intel integrated graphics (IGD) VGA passthrough and let 
me know whether you encounter any stability issues (Xen 4.0.1).

Thank you.

-- 
Yours sincerely,

Mr. Teo En Ming (Zhang Enming) 张恩鸣 Dip(Mechatronics) BEng(Hons)(Mechanical Engineering)
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On 09/18/2010 12:08 PM, Andrew Warkentin wrote:
> I am trying to pass an eVGA GeForce GTS 250 to a Windows XP 32-bit
> domU. I am using an ASUS P7Q57-M DO motherboard (with the BIOS updated
> to the latest version) with a Core i5-660 processor. I am using the
> current unstable version of Debian as dom0 (kernel version
> 2.6.32-5-xen-amd64), with the current Debian unstable package of Xen
> 4.0.1. When I boot the XP domU with graphics passthrough enabled,
> nothing happens (the domU starts up, but all I see are the last boot
> messages from Xen).
>
> I also tried passing through the onboard audio adapter to Windows XP,
> and the driver loads and recognizes the adapter, but actually playing
> sounds doesn't appear to work. I am not sure if the graphics
> passthrough failure is related to the problem with the onboard audio
> (and therefore a motherboard/CPU problem), or if it has to do with the
> graphics card itself. I know that some NVIDIA cards require Xen
> patches to be passed through, but I am not sure where to find patches
> that will work with Xen 4.0.1 (the ones that I found were from August
> 2009, and I get failed hunks when I try to apply them to Xen 4.0.1).
>
> Does anybody know if there are vBAR=pBAR patches available for Xen
> 4.0.1 (or if they have been integrated into the current Xen
> development tree)? Alternatively, if this is a motherboard problem,
> does anybody know of any LGA1156 motherboards that definitely have
> working VT-d?
>
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