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[Xen-devel] Re: [PATCH 0/4] stubdom-dm: Support live migration of HVM do

To: Yosuke Iwamatsu <y-iwamatsu@xxxxxxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH 0/4] stubdom-dm: Support live migration of HVM domain with stubdom-dm
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
Date: Tue, 16 Dec 2008 11:02:31 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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Yosuke Iwamatsu, le Tue 16 Dec 2008 18:22:20 +0900, a écrit :
> This series of patches is an attempt to support live migration of hvm
> domains with stubdom-dm.

Err, I'm a bit surprised. I haven't tested it since then, but I'm sure
live migration was working with stubdoms a few months ago, without
the need for a logdirty shared buffer.  This works thanks to the few
lines at the end of the cpu_physical_memory_rw() function that tell the
hypervisor about modified memory.  Actually, the plan was even to use
that bit of code in all cases (not only non-stubdom), so as to get rid
of the logdirty shared buffer completely.

Samuel

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