Re: [Xen-devel] [PATCH 1/6] AMD IOMMU: allocate IRTE entries instead of using a static mapping

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.04.13 at 17:06, Suravee Suthikulanit <suravee.suthikulpanit@xxxxxxx> 
>>> wrote:
> On 4/23/2013 8:21 AM, Suravee Suthikulanit wrote:
>> I am now reproducing the issue with the USB devices not working with 
>> this patch again.  I'll continue to investigate more.
>>
>> Suravee 
> Ok, I have more update on the issue.  Bellow, I include the output from 
> "xl debug-key i".  It is showing several IRQ having the same vector "b0".
> This is not the case when booting with the xen w/o the patch.

Right, and I spotted a bug in the respective code, but I can't
readily connect that bug to the behavior you observed (i.e. I
can't explain why the bad vector would be the same all the time).

Nevertheless, attached a fixed version of the first patch of
the most recent series - let's see how much of a difference this
makes.

Jan

Attachment: AMD-IOMMU-irte-alloc.patch
Description: Text document

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