From: Anthony Liguori <aliguori@us.ibm.com>
To: Avi Kivity <avi@qumranet.com>
Cc: Chris Wright <chrisw@redhat.com>,
Uri Lublin <uri.lublin@qumranet.com>,
qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH 2/10] Allow the monitor to be suspended during non-blocking op
Date: Wed, 10 Sep 2008 08:07:42 -0500 [thread overview]
Message-ID: <48C7C69E.9040400@us.ibm.com> (raw)
In-Reply-To: <48C76EB1.6040906@qumranet.com>
Avi Kivity wrote:
> Anthony Liguori wrote:
>> Live migration happens in the background, but it is useful to make
>> the monitor
>> command appear as if it's blocking. This allows a management tool to
>> immediately know when the live migration has completed without having
>> to poll
>> the migration status.
>>
>> This patch allows the monitor to be suspended from a monitor callback
>> which
>> will prevent new monitor commands from being executed.
>>
>>
>
> This means that migration is no longer transparent. While migration
> is going on, you can't change the cdrom media, look at cpu registers,
> or do anything that requires the monitor.
On my TODO list is adding a '-d' option like we have in the KVM tree.
It'll be there before it gets committed.
Regards,
Anthony Liguori
> This both reduces the functionality and complicates management
> applications. IMO migration should have asynchronous notification
> (and no, I don't think multiple monitors is the correct solution).
>
next prev parent reply other threads:[~2008-09-10 13:09 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-09 19:49 [Qemu-devel] [PATCH 0/10] Live migration for QEMU Anthony Liguori
2008-09-09 19:49 ` [Qemu-devel] [PATCH 1/10] Refactor QEMUFile for live migration Anthony Liguori
2008-09-10 13:25 ` Chris Lalancette
2008-09-10 14:38 ` [Qemu-devel] " Glauber Costa
2008-09-10 15:05 ` Avi Kivity
2008-09-10 15:16 ` Anthony Liguori
2008-09-12 15:40 ` [Qemu-devel] " Blue Swirl
2008-09-09 19:49 ` [Qemu-devel] [PATCH 2/10] Allow the monitor to be suspended during non-blocking op Anthony Liguori
2008-09-10 6:52 ` Avi Kivity
2008-09-10 10:05 ` Daniel P. Berrange
2008-09-10 11:11 ` Avi Kivity
2008-09-10 11:14 ` Daniel P. Berrange
2008-09-10 15:36 ` Avi Kivity
2008-09-10 15:40 ` Anthony Liguori
2008-09-10 15:58 ` Jamie Lokier
2008-09-11 10:16 ` Avi Kivity
2008-09-11 11:59 ` Jamie Lokier
2008-09-10 13:07 ` Anthony Liguori [this message]
2008-09-10 13:26 ` Chris Lalancette
2008-09-10 10:01 ` Daniel P. Berrange
2008-09-10 13:11 ` Anthony Liguori
2008-09-09 19:49 ` [Qemu-devel] [PATCH 3/10] Add bdrv_flush_all() Anthony Liguori
2008-09-10 13:26 ` Chris Lalancette
2008-09-10 14:46 ` Glauber Costa
2008-09-10 15:19 ` Anthony Liguori
2008-09-10 15:32 ` Glauber Costa
2008-09-10 15:39 ` Avi Kivity
2008-09-10 16:37 ` Paul Brook
2008-09-12 15:43 ` Blue Swirl
2008-09-09 19:49 ` [Qemu-devel] [PATCH 4/10] Add dirty tracking for live migration Anthony Liguori
2008-09-10 14:52 ` Glauber Costa
2008-09-10 14:56 ` Anthony Liguori
2008-09-10 15:01 ` Glauber Costa
2008-09-09 19:49 ` [Qemu-devel] [PATCH 5/10] Add network announce function Anthony Liguori
2008-09-10 13:27 ` Chris Lalancette
2008-09-10 13:54 ` Anthony Liguori
2008-09-10 14:00 ` Avi Kivity
2008-09-09 19:49 ` [Qemu-devel] [PATCH 6/10] Introduce v3 of savevm protocol Anthony Liguori
2008-09-10 7:09 ` Avi Kivity
2008-09-09 19:49 ` [Qemu-devel] [PATCH 7/10] Switch the memory savevm handler to be "live" Anthony Liguori
2008-09-09 22:25 ` Jamie Lokier
2008-09-09 22:49 ` Anthony Liguori
2008-09-10 7:17 ` Avi Kivity
2008-09-10 13:10 ` Anthony Liguori
2008-09-09 19:50 ` [Qemu-devel] [PATCH 8/10] Introduce a buffered QEMUFile wrapper Anthony Liguori
2008-09-12 15:16 ` Blue Swirl
2008-09-09 19:50 ` [Qemu-devel] [PATCH 9/10] Introduce the UI components for live migration Anthony Liguori
2008-09-09 19:50 ` [Qemu-devel] [PATCH 10/10] TCP based " Anthony Liguori
2008-09-10 16:46 ` Blue Swirl
2008-09-10 16:51 ` Anthony Liguori
2008-09-11 12:13 ` [Qemu-devel] [PATCH 0/10] Live migration for QEMU Atsushi SAKAI
2008-09-11 13:06 ` Anthony Liguori
2008-09-11 13:30 ` Jamie Lokier
2008-09-11 14:12 ` Anthony Liguori
2008-09-11 15:32 ` Avi Kivity
2008-09-11 16:22 ` Anthony Liguori
2008-09-11 16:32 ` Avi Kivity
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