From: "Michael S. Tsirkin" <mst@redhat.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: Tom Lyon <pugs@lyon-about.com>,
randy.dunlap@oracle.com, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, chrisw@sous-sol.org, hjk@linutronix.de,
avi@redhat.com, gregkh@suse.de, aafabbri@cisco.com,
scofeldm@cisco.com
Subject: Re: [PATCH V2] VFIO driver: Non-privileged user level PCI drivers
Date: Thu, 24 Jun 2010 18:03:35 +0300 [thread overview]
Message-ID: <20100624150335.GA10501@redhat.com> (raw)
In-Reply-To: <20100624122219.GD20761@8bytes.org>
On Thu, Jun 24, 2010 at 02:22:19PM +0200, Joerg Roedel wrote:
> On Thu, Jun 17, 2010 at 02:14:00PM -0700, Tom Lyon wrote:
> > On Sunday 13 June 2010 03:23:39 am Michael S. Tsirkin wrote:
>
> > OK, after more investigation, I realize you are right.
> > We definitely need the IOMMU protection for interrupts, and
> > if we have it, a lot of the code for config space protection is pointless.
> > It does seem that the Intel intr_remapping code does what we want
> > (accidentally) but that the AMD iommu code does not yet do any
> > interrupt remapping. Joerg - can you comment? On the roadmap?
>
> Work on this is planned, but not at a high priority by now. I can
> re-prioritize this item if needed.
>
> Joerg
As a stop-gap measure, we could get by with a
portable API that let us figure out whether a given iommu supports
interrupt remapping.
--
MST
next prev parent reply other threads:[~2010-06-24 15:08 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-08 21:21 [PATCH V2] VFIO driver: Non-privileged user level PCI drivers Tom Lyon
2010-06-08 21:41 ` Randy Dunlap
2010-06-09 12:11 ` Arnd Bergmann
2010-06-08 21:45 ` Randy Dunlap
2010-06-08 22:38 ` Michael S. Tsirkin
2010-06-08 23:54 ` Tom Lyon
2010-06-09 5:45 ` Michael S. Tsirkin
2010-06-11 22:15 ` Tom Lyon
2010-06-13 10:23 ` Michael S. Tsirkin
2010-06-17 21:14 ` Tom Lyon
2010-06-17 21:47 ` Michael S. Tsirkin
2010-06-24 12:22 ` Joerg Roedel
2010-06-24 15:03 ` Michael S. Tsirkin [this message]
2010-06-09 11:04 ` Avi Kivity
2010-06-09 15:25 ` Greg KH
2010-06-09 16:05 ` Michael S. Tsirkin
2010-06-10 17:27 ` Konrad Rzeszutek Wilk
2010-06-11 1:58 ` Tom Lyon
2010-06-11 4:19 ` Greg KH
2010-06-11 4:56 ` Avi Kivity
2010-06-30 6:14 ` Alex Williamson
2010-06-30 13:36 ` Michael S. Tsirkin
2010-06-30 14:00 ` Alex Williamson
2010-06-30 22:17 ` Tom Lyon
2010-06-30 22:32 ` Michael S. Tsirkin
2010-06-30 22:49 ` Tom Lyon
2010-07-01 4:16 ` Alex Williamson
2010-07-01 4:30 ` Tom Lyon
2010-07-01 5:16 ` Alex Williamson
2010-07-01 15:29 ` Alex Williamson
2010-07-01 15:31 ` Michael S. Tsirkin
2010-07-01 15:48 ` Alex Williamson
2010-07-01 16:22 ` Michael S. Tsirkin
2010-07-01 18:49 ` Tom Lyon
2010-07-06 4:50 ` Alex Williamson
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