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Re: [Xen-devel] IOMMU fault with IGD passthrough setup on XEN 4.8.0



Thank you for all your help Jan && Roger.
I think we can settle on this thread now.
After disabling the debug build, the gfx-passthrough back to work now.

On Mon, Feb 20, 2017 at 12:38 PM, G.R. <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>Feb 10, 2017 02:00,"Roger Pau Monné" <roger.pau@xxxxxxxxxx> wrote:
>>
>>On Thu, Feb 09, 2017 at 07:58:56AM -0700, Jan Beulich wrote:
>>> >>> On 09.02.17 at 15:46, <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>> > BTW -- I think that fix should not be conflicting with your debug change,
>>> > right?
>>>
>>> Yes - ideally you'd keep that one in place along with adding Roger's
>>> patch.
>>
>>Please use the patch below, the previous one was missing a break, which made 
>>it
>>completely useless, sorry.
>>
>>Roger.
>
> Thanks for the updated patch and sorry for the delayed response.
> I would like to confirm that the updated patch appears to work. The
> flooding fault is gone now.
> I wasn't able to get ipxe launched in domU with gfx-passthrough=1 though.
> Hopefully this is not a real issue as I reported the following before:
>>For unknown reason, debug version of hypervisor will cause domU hang if 
>>gfx-passthrough=1 is present (traditional device model).
>
> Rui

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