From: Pavel Machek <pavel@ucw.cz>
To: Shriram Rajagopalan <rshriram@cs.ubc.ca>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
linux-pm@lists.linux-foundation.org,
xen-devel@lists.xensource.com,
Iam Campbell <ian.campbell@citrix.com>
Subject: Re: [PATCH 0/3] xen: Use PM/Hibernate events for save/restore/chkpt
Date: Sun, 20 Feb 2011 08:49:31 +0100 [thread overview]
Message-ID: <20110220074931.GA28485@elf.ucw.cz> (raw)
In-Reply-To: <1298157158-5421-1-git-send-email-rshriram@cs.ubc.ca>
On Sat 2011-02-19 15:12:35, Shriram Rajagopalan wrote:
> The current implementation of xen guest save/restore/checkpoint functionality
> uses PM_SUSPEND and PM_RESUME events. This is not optimal when taking
> checkpoints of a virtual machine (where the suspend hypercall returns
> non-zero, requiring the devices and xenbus to just pickup from where they left
> off instead of a complete teardown/reconnect to backend).
>
> The following set of patches modify this implementation to use Hibernate style
> control flow (freeze/restore for save/restore and freeze/thaw for checkpoint,
> which is merely a cancelled save akin to failed swsusp() ).
>
> These patches are against Ian Campbell's PVHVM tree at
> git://xenbits.xen.org/people/ianc/linux-2.6.git for-stefano/pvhvm
>
> at commit 8a8d1bc753c4e2dda5f2890292d60c67d6ebb573
> kernel version: 2.6.38-rc4
Series looks ok to me...
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2011-02-20 7:49 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-19 23:12 [PATCH 0/3] xen: Use PM/Hibernate events for save/restore/chkpt Shriram Rajagopalan
2011-02-19 23:12 ` [PATCH 1/3] xen: xenbus PM events support Shriram Rajagopalan
2011-02-19 23:12 ` [PATCH 2/3] xen: use freeze/restore/thaw PM events for suspend/resume/chkpt Shriram Rajagopalan
2011-02-22 20:43 ` Konrad Rzeszutek Wilk
2011-02-22 21:14 ` Rafael J. Wysocki
2011-02-22 22:09 ` Shriram Rajagopalan
2011-02-22 22:35 ` Rafael J. Wysocki
2011-02-22 22:36 ` Konrad Rzeszutek Wilk
2011-02-22 22:53 ` Shriram Rajagopalan
2011-02-19 23:12 ` [PATCH 3/3] PM: pm.h - Add comments about Xen save/restore/chkpt use case Shriram Rajagopalan
2011-02-20 7:49 ` Pavel Machek [this message]
2011-02-21 10:05 ` [PATCH 0/3] xen: Use PM/Hibernate events for save/restore/chkpt Ian Campbell
2011-02-21 16:40 ` [linux-pm] " Alan Stern
2011-02-21 17:17 ` Ian Campbell
2011-02-21 20:23 ` Rafael J. Wysocki
2011-02-25 16:17 ` Stefano Stabellini
2011-02-25 16:19 ` Ian Campbell
2011-02-25 16:23 ` Stefano Stabellini
2011-02-23 18:38 ` Pavel Machek
2011-02-23 20:10 ` Rafael J. Wysocki
2011-02-24 16:13 ` Konrad Rzeszutek Wilk
2011-02-24 18:41 ` Rafael J. Wysocki
2011-02-25 17:19 ` Stefano Stabellini
2011-02-25 18:24 ` Rafael J. Wysocki
2011-02-28 11:06 ` [Xen-devel] " Stefano Stabellini
2011-03-04 16:04 ` Shriram Rajagopalan
2011-03-04 20:52 ` Rafael J. Wysocki
2011-02-23 7:03 ` [PATCH v2 2/3] xen: use freeze/restore/thaw PM events for suspend/resume/chkpt Shriram Rajagopalan
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