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[Qemu-devel] Re: Live migration protocol, device features, ABIs and othe

From: Juan Quintela
Subject: [Qemu-devel] Re: Live migration protocol, device features, ABIs and other beasts
Date: Tue, 24 Nov 2009 15:20:47 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux)

"Michael S. Tsirkin" <address@hidden> wrote:

>> But to really make it work, we need to take a list of each savevm format
>> change and put it here.  Notice that several changes are needed:
>> - savevm infrastructure save functions don't know about version id
>> - devices don't know to "behave" as other version
>> - other things that I have probably missed
>> Later, Juan.
> Why do you think this the right place for it, I wonder?
> This describes the machine, it does not seem to have
> anything to do with how we migrate it.

Becase here is where we know that _this_ machine had _this_ versions of
each device.  And this is also the trivial part to describe: I want a
machine like the one in qemu-0.11.

What is more, it makes trivial for downstream to do things like:
- I define my machine, called foo-7.0, and the changes that it has over
  any other machine.

Later, Juan.

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