From: Avi Kivity <avi@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Jan Kiszka <jan.kiszka@siemens.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
liu ping fan <qemulist@gmail.com>,
Anthony Liguori <anthony@codemonkey.ws>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [big lock] Discussion about the convention of device's DMA each other after breaking down biglock
Date: Thu, 27 Sep 2012 12:08:56 +0200 [thread overview]
Message-ID: <506425B8.1040706@redhat.com> (raw)
In-Reply-To: <50641E08.4040602@redhat.com>
On 09/27/2012 11:36 AM, Paolo Bonzini wrote:
> Il 27/09/2012 11:34, Avi Kivity ha scritto:
>>> > virtio-net is per-spec not going through the iommu.
>> What's that smell? A feature bit?
>
> Why is it a bad thing that it does not go through the iommu?
You can't assign the device to nested guests or to guest userspace via
vfio. Some guests may want to use the iommu even in the guest kernel
context.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-09-27 10:09 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-19 3:02 [Qemu-devel] [big lock] Discussion about the convention of device's DMA each other after breaking down biglock liu ping fan
2012-09-19 8:06 ` Avi Kivity
2012-09-19 9:00 ` liu ping fan
2012-09-19 9:07 ` Avi Kivity
2012-09-19 9:11 ` liu ping fan
2012-09-19 9:14 ` Paolo Bonzini
2012-09-19 9:19 ` liu ping fan
2012-09-19 9:23 ` Avi Kivity
2012-09-19 9:27 ` Jan Kiszka
2012-09-19 9:28 ` Jan Kiszka
2012-09-20 7:51 ` liu ping fan
2012-09-20 7:54 ` Paolo Bonzini
2012-09-20 8:09 ` liu ping fan
2012-09-20 8:27 ` Paolo Bonzini
2012-09-20 9:07 ` Avi Kivity
2012-09-21 7:27 ` liu ping fan
2012-09-21 8:21 ` Paolo Bonzini
2012-09-19 9:21 ` Avi Kivity
2012-09-19 9:51 ` Paolo Bonzini
2012-09-19 10:06 ` Avi Kivity
2012-09-19 10:19 ` Paolo Bonzini
2012-09-19 10:27 ` Avi Kivity
2012-09-19 9:34 ` Jan Kiszka
2012-09-19 9:50 ` Avi Kivity
2012-09-19 10:18 ` Jan Kiszka
2012-09-24 6:33 ` liu ping fan
2012-09-24 7:44 ` Avi Kivity
2012-09-24 8:32 ` liu ping fan
2012-09-24 9:42 ` Avi Kivity
2012-09-27 3:13 ` liu ping fan
2012-09-27 9:16 ` Avi Kivity
2012-09-27 9:29 ` Paolo Bonzini
2012-09-27 9:34 ` Avi Kivity
2012-09-27 9:36 ` Paolo Bonzini
2012-09-27 10:08 ` Avi Kivity [this message]
2012-09-27 10:22 ` Paolo Bonzini
2012-09-27 10:48 ` Avi Kivity
2012-09-29 9:20 ` liu ping fan
2012-09-30 8:13 ` Avi Kivity
2012-09-30 8:48 ` liu ping fan
2012-09-30 11:18 ` Avi Kivity
2012-09-30 11:04 ` Blue Swirl
2012-09-30 11:17 ` Avi Kivity
2012-09-30 11:48 ` Blue Swirl
2012-09-20 8:11 ` liu ping fan
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