Re: [Xen-devel] Updated ATI passthrough patches.

[Konrad Rzeszutek Wilk <konrad@xxxxxxxxxx>]

On Sat, Dec 01, 2012 at 06:24:59PM -0600, Dr. Greg Wettstein wrote:
> Hi, hope the weekend is going well for everyone.
> 
> I just put a set of updated patches to support ATI passthrough on a
> primary video adapter on the FTP site.  The URL's are as follows:
> 
>       ftp://ftp.enjellic.com/pub/xen/xen-4.1.3.ati-passthrough.patch
> 
>       ftp://ftp.enjellic.com/pub/xen/xen-4.2.0.ati-passthrough.patch
> 
> These patches have been validated to work up through kernel 3.4.18
> with the xm control plane.  We are currently working on validating
> whether or not there are passthrough issues with xl.
> 
> The original ATI pass-through patches posted to xen-devel fail with a
> qemu-dm segmentation fault on recent kernels.  This is caused by
> changes which have been made with respect to proper enforcement of the
> permitted port ranges on the ioperm() system call.
> 
> Since these patchs allow a primary graphics adapter to be used for
> passthrough I wanted to remind everyone of the availability of the
> following utility script:
> 
>       ftp://ftp.enjellic.com/pub/xen/run-passthrough
> 
> Which automates the process of unplugging and re-plugging a video card
> and optionally a USB controller.  A script like this, or a network
> login, is needed in order to use passthrough on a primary graphics
> adapter.

Great! What type of config options do you end up using for your guests?
gfx_pass.., msix_translate=.. ? Or just normal

pci=[BDF] ?

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