Re: [PATCH 0/4 v2] Implement access checks in iommu page fault paths

From: Jesse Barnes
Date: Wed Nov 18 2015 - 11:13:27 EST

On 11/17/2015 07:11 AM, Joerg Roedel wrote:
> Hi,
> here is the second version of the patch-set to implement
> proper access checks into the io-page-fault handlers of the
> AMD IOMMU and Intel VT-d drivers.
> Two additional patches clean up the AMD part a bit further.
> Since I can't test this this code myself due to lack of
> hardware or software that utilizes it, I'd appreciate some
> external testing.
> It took me a while to get these out, mostly because I tried
> to setup my own HSA test environment to at least test the
> AMD changes myself. That failed, so I am sending this out
> with another request for testing.
> Oded, Jesse, would you two please test these patches and
> report back? Thanks a lot!

I might be able to find time later this week or next; I have to update
my tree to David's latest bits and rebase my i915 code on top along with
these patches. Then I can run some of my tests and expand them to try
r/w tests w/o mapping the buffer with the right access mode.


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