Re: [Xen-devel] Fast checkpoints with COW VM memory

[Tim Deegan <Tim.Deegan@xxxxxxxxxx>]

At 14:59 -0500 on 05 Dec (1196866790), Mike Sun wrote:
> According to the Xen Roadmap for 2006, there was talk of copy-on-write
> functionality that could be developed easily from the
> save/restore/migration code to enable features such as fast
> checkpoints or even VM forks.

FSVO "easily". :)  I am working on extending the typed P2M work I did a
while ago to allow pages to be marked copy-on-write, and other similar
memory tricks.  It's still in the planning stage, but I hope to have
some patches for comment fairly soon.

Brendan Cully gave a talk on this area at the last Summit, and I know
there is more work going on at UBC too.

Tim

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Citrix Systems.
[Company #5334508: XenSource UK Ltd, reg'd c/o EC2Y 5EB, UK.]

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