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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 07.02.17 at 16:44, <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
> On Mon, Feb 6, 2017 at 8:40 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote:
>>>>> On 05.02.17 at 06:51, <firemeteor@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>> I finally get some spare time to collect the debug info.
>>
>> As I continue to be puzzled, best I could come up with is an
>> extension to the debug patch. Please use the attached one
>> in place of the earlier one, ideally on top of
>> https://lists.xenproject.org/archives/html/xen-devel/2017-02/msg00448.html 
>> to reduce the overall amount of output (and help readability).
> 
> Please see attached...

Okay, that's because p2m_get_iommu_flags() returns zero for
p2m_mmio_direct, which iirc we already have a patch floating
around for (needed for PVHv2). Roger - what's the status of
that? Would it make sense to split this out of your series, to get
in rather sooner?

Jan


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