From: Alex Williamson <alex.williamson@redhat.com>
To: Ilya Lesokhin <ilyal@mellanox.com>
Cc: "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"bhelgaas@google.com" <bhelgaas@google.com>
Subject: Re: Shouldn't VFIO virtualize the ATS capability?
Date: Sun, 6 Nov 2016 10:08:32 -0700 [thread overview]
Message-ID: <20161106100832.41e173d5@t450s.home> (raw)
In-Reply-To: <VI1PR0502MB295799E38EEC9E1F939B68B5D4A40@VI1PR0502MB2957.eurprd05.prod.outlook.com>
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
next prev parent reply other threads:[~2016-11-06 17:08 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-06 11:13 Shouldn't VFIO virtualize the ATS capability? Ilya Lesokhin
2016-11-06 17:08 ` Alex Williamson [this message]
2016-11-09 14:49 ` Ilya Lesokhin
2016-11-09 15:07 ` Alex Williamson
2016-11-09 15:25 ` Ilya Lesokhin
2016-11-09 15:53 ` Alex Williamson
2016-11-09 15:55 ` Ilya Lesokhin
2016-12-01 23:22 ` Alex Williamson
2016-12-02 7:45 ` Ilya Lesokhin
2016-12-02 15:58 ` Alex Williamson
2016-12-05 7:07 ` Ilya Lesokhin
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