From: Rik van Riel <riel@redhat.com>
To: Liang Li <liang.z.li@intel.com>,
mst@redhat.com, viro@zeniv.linux.org.uk,
linux-kernel@vger.kernel.org, quintela@redhat.com,
amit.shah@redhat.com, pbonzini@redhat.com, dgilbert@redhat.com
Cc: linux-mm@kvack.org, kvm@vger.kernel.org, qemu-devel@nongnu.org,
agraf@suse.de, borntraeger@de.ibm.com
Subject: Re: [Qemu-devel] [PATCH kernel 1/2] mm: add the related functions to build the free page bitmap
Date: Tue, 19 Apr 2016 10:54:19 -0400 [thread overview]
Message-ID: <1461077659.3200.8.camel@redhat.com> (raw)
In-Reply-To: <1461076474-3864-2-git-send-email-liang.z.li@intel.com>
On Tue, 2016-04-19 at 22:34 +0800, Liang Li wrote:
> The free page bitmap will be sent to QEMU through virtio interface
> and used for live migration optimization.
> Drop the cache before building the free page bitmap can get more
> free pages. Whether dropping the cache is decided by user.
>
How do you prevent the guest from using those
recently-freed pages for something else, between
when you build the bitmap and the live migration
completes?
next prev parent reply other threads:[~2016-04-19 14:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-19 14:34 [Qemu-devel] [PATCH kernel 0/2] speed up live migration by skipping free pages Liang Li
2016-04-19 14:34 ` [Qemu-devel] [PATCH kernel 1/2] mm: add the related functions to build the free page bitmap Liang Li
2016-04-19 14:54 ` Rik van Riel [this message]
2016-04-19 15:02 ` Li, Liang Z
2016-04-19 15:26 ` Rik van Riel
2016-04-20 0:57 ` Li, Liang Z
2016-04-19 16:15 ` Michael S. Tsirkin
2016-04-20 1:41 ` Li, Liang Z
2016-04-21 13:48 ` Michael S. Tsirkin
2016-04-22 1:36 ` Li, Liang Z
2016-04-22 9:48 ` Dr. David Alan Gilbert
2016-04-22 13:58 ` Michael S. Tsirkin
2016-04-25 3:11 ` Li, Liang Z
2016-04-25 10:43 ` Michael S. Tsirkin
2016-04-26 3:21 ` Li, Liang Z
2016-04-19 14:56 ` kbuild test robot
2016-04-19 16:01 ` kbuild test robot
2016-04-19 16:14 ` kbuild test robot
2016-04-19 14:34 ` [Qemu-devel] [PATCH kernel 2/2] virtio-balloon: extend balloon driver to support the new feature Liang Li
2016-04-19 16:18 ` Michael S. Tsirkin
2016-04-25 6:06 ` [Qemu-devel] [PATCH kernel 0/2] speed up live migration by skipping free pages Amit Shah
2016-04-25 11:04 ` Michael S. Tsirkin
2016-04-25 12:08 ` Amit Shah
2016-04-25 12:51 ` Michael S. Tsirkin
2016-04-25 13:17 ` Dr. David Alan Gilbert
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