Re: Pass-through a graphic card

[Jean Guyader <jean.guyader@eu.citrix.com>]

billy lau wrote:
> Hi dear Xen developers,
> 
> I was actually trying out a patch which was circulated in this mailing 
> list found at 
> http://markmail.org/message/gecwbq4oqttszxvo#query:+page:1+mid:x4ethv65thwrq3e6+state:results.
> 
> I was using Xen-3.3.0 on Debian etch 4.0, kernel 2.6.18.8-xen on a Intel 
> machine with Vt-d enabled.
> However, during that process, I found out that I was unable to compile 
> properly by just applying the patch. But I did manage to solve the 
> compilation problem, and now the problem is that there are linkage 
> problems where it says there is an undefined reference to 'ioctl'.
> 
> Does anyone in this list know of a solution to this? Or, is there any 
> other alternatives or works that has been done to pass-through a 
> graphics card to domU?
> 
> Any advice is very much appreciated, and thank you in advance,

Hi Billy,

This patch is useful only if you want to pass through the graphic card
as a primary on the guest.

We've got good result when we pass through a legacy nvidia graphic
card as secondary in the guest (just put pci = ['B:D:F']) in your config
file. You need to install at least the version 178.12 for of the nvidia
driver.

-- 
Jean Guyader