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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: chrisw@redhat.com, kvm@vger.kernel.org, qemu-devel@nongnu.org,
	blauwirbel@gmail.com,
	Alex Williamson <alex.williamson@redhat.com>,
	ddutile@redhat.com
Subject: Re: [Qemu-devel] [PATCH v2 2/2] RAM API: Make use of it for x86 PC
Date: Thu, 18 Nov 2010 18:35:21 +0200	[thread overview]
Message-ID: <20101118163521.GA11896@redhat.com> (raw)
In-Reply-To: <4CE551BE.9020306@redhat.com>

On Thu, Nov 18, 2010 at 06:18:06PM +0200, Avi Kivity wrote:
> >But for PV devices, we can be loose in how we define the way the
> >devices interact with the rest of the system.  For instance, we
> >can say that virtio-pci devices are directly connected to RAM and
> >do not go through the memory controllers.  That means we could get
> >stable mappings of the virtio ring.
> 
> That wouldn't work once we have an iommu and start to assign them to
> nested guests.

Yea. Not sure whether I'm worried about that though.
Mixing in all the problems inherent in nested virt, PV and assigned
devices seems especially masochistic.

> -- 
> error compiling committee.c: too many arguments to function

  reply	other threads:[~2010-11-18 16:35 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-29 16:38 [Qemu-devel] [PATCH 0/2] Minimal RAM API support Alex Williamson
2010-10-29 16:39 ` [Qemu-devel] [PATCH 1/2] " Alex Williamson
2010-10-29 19:57   ` Blue Swirl
2010-10-29 20:15     ` Alex Williamson
2010-11-01  2:17   ` Isaku Yamahata
2010-11-01  2:32     ` Alex Williamson
2010-10-29 16:39 ` [Qemu-devel] [PATCH 2/2] RAM API: Make use of it for x86 PC Alex Williamson
2010-11-01 15:13 ` [Qemu-devel] [PATCH v2 0/2] Minimal RAM API support Alex Williamson
2010-11-01 15:14   ` [Qemu-devel] [PATCH v2 1/2] " Alex Williamson
2010-11-16 14:55     ` Anthony Liguori
2010-11-16 15:02       ` Alexander Graf
2010-11-16 15:08         ` Anthony Liguori
2010-11-01 15:14   ` [Qemu-devel] [PATCH v2 2/2] RAM API: Make use of it for x86 PC Alex Williamson
2010-11-16 14:58     ` Anthony Liguori
2010-11-16 21:24       ` Alex Williamson
2010-11-17  9:31         ` Gleb Natapov
2010-11-17 23:42         ` Anthony Liguori
2010-11-18 15:22           ` Avi Kivity
2010-11-18 15:46             ` Anthony Liguori
2010-11-18 15:57               ` Avi Kivity
2010-11-18 16:09                 ` Anthony Liguori
2010-11-18 16:18                   ` Avi Kivity
2010-11-18 16:35                     ` Michael S. Tsirkin [this message]
2010-11-18 15:51           ` Gleb Natapov
2010-11-18 21:41   ` [Qemu-devel] [PATCH v3 0/2] Minimal RAM API support Alex Williamson
2010-11-18 21:41     ` [Qemu-devel] [PATCH v3 1/2] " Alex Williamson
2010-11-18 21:41     ` [Qemu-devel] [PATCH v3 2/2] RAM API: Make use of it for x86 PC Alex Williamson

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