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Re: [Qemu-devel] vm state save/restore question

From: Benjamin Herrenschmidt
Subject: Re: [Qemu-devel] vm state save/restore question
Date: Wed, 20 Jun 2012 08:32:05 +1000

On Wed, 2012-06-20 at 00:27 +0200, Alexander Graf wrote:
> > I need to understand better how do that vs. qemu save/restore
> though. IE. That means
> > we can't just save the hash as a bulk and reload it, but we'd have
> to save bits of
> > it at a time or something like that no ? Or do we save it once, then
> save the diff
> > at the end ?
> The best way would be to throw it into the same bucket as RAM. At the
> end of the day, it really is no different. It'd then be synced during
> every iteration of the migration.

Sure, I understand the principle on paper :-) Not the details on how to
do that in the code :-) I'll dig see if I can figure it out from the RAM
code later this week. I'm not actually implementing that stuff just yet,
just sizing it.


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