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From: Anthony Liguori <aliguori@us.ibm.com>
To: Avi Kivity <avi@redhat.com>
Cc: Glauber Costa <glommer@redhat.com>,
	qemu-devel@nongnu.org, kvm-devel <kvm@vger.kernel.org>
Subject: [Qemu-devel] Re: [PATCH 3/3] Add KVM support to QEMU
Date: Tue, 04 Nov 2008 08:50:51 -0600	[thread overview]
Message-ID: <4910614B.1010602@us.ibm.com> (raw)
In-Reply-To: <4910602B.5060101@redhat.com>

Avi Kivity wrote:
> Anthony Liguori wrote:
>
>>> I think live migration is now broken, since kvm accesses will not 
>>> update the qemu dirty bitmap.
>>
>> Eh?  I don't follow you here.
>>
>
> guest writes in qemu set the qemu dirty bitmap (for 
> cpu_physical_memory_get_dirty()), but guest accesses in kvm won't, 
> unless you enable dirty tracking and synchronize kvm's bitmap to 
> qemu's.  See the changes to migration.c in kvm's qemu.

Oh yes, that falls under the save/restore TODO item.

Regards,

Anthony Liguori

      reply	other threads:[~2008-11-04 14:51 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-28 20:13 [Qemu-devel] [PATCH 1/3] Add additional CPU flag definitions Anthony Liguori
2008-10-28 20:13 ` [Qemu-devel] [PATCH 2/3] Split CPUID from op_helper Anthony Liguori
2008-10-28 20:13   ` [Qemu-devel] [PATCH 3/3] Add KVM support to QEMU Anthony Liguori
2008-10-28 20:49     ` Hollis Blanchard
2008-10-28 21:10       ` Anthony Liguori
2008-10-28 20:57     ` Andreas Färber
2008-10-28 21:04       ` Glauber Costa
2008-10-28 21:16         ` Anthony Liguori
2008-10-28 21:05       ` Anthony Liguori
2008-11-04 13:25         ` Avi Kivity
2008-10-28 21:41     ` [Qemu-devel] " Gerd Hoffmann
2008-10-28 21:51       ` Anthony Liguori
2008-10-28 23:04         ` Glauber Costa
2008-10-28 23:36           ` Anthony Liguori
2008-10-29  9:54             ` Avi Kivity
2008-10-29 12:35               ` Glauber Costa
2008-10-29 12:39                 ` Avi Kivity
2008-10-29 12:56                   ` Glauber Costa
2008-10-29 13:07               ` Anthony Liguori
2008-10-29 13:23                 ` Avi Kivity
2008-10-29 13:32                   ` Anthony Liguori
2008-10-29 13:51             ` Hollis Blanchard
2008-10-29 14:09               ` Avi Kivity
2008-10-29 14:16                 ` Fabrice Bellard
2008-10-29 14:23                   ` Anthony Liguori
2008-10-29 19:13                 ` Blue Swirl
2008-11-01 16:25                   ` Blue Swirl
2008-10-29 14:58     ` Glauber Costa
2008-10-29 17:41     ` Glauber Costa
2008-10-29 19:01       ` Anthony Liguori
2008-11-04 13:24     ` Avi Kivity
2008-11-04 14:02       ` Anthony Liguori
2008-11-04 14:46         ` Avi Kivity
2008-11-04 14:50           ` Anthony Liguori [this message]

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