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From: Alex Williamson <alex.williamson@redhat.com>
Subject: Re: Shouldn't VFIO virtualize the ATS capability?
Date: Sun, 6 Nov 2016 10:08:32 -0700
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To: Ilya Lesokhin <ilyal@mellanox.com>
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On Sun, 6 Nov 2016 11:13:09 +0000
Ilya Lesokhin <ilyal@mellanox.com> wrote:

> Hi 
> I've noticed that VFIO doesn't virtualize the ATS capability.
> It seems to me that translation caching and Smallest Translation Unit is something you would want to control on the host. Am I wrong?

What about those fields would we virtualize?  Why does the host need to
be an intermediary?  Can the user induce poor behavior with direct
access to them?  Thanks,

Alex