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Re: [PATCH v10 00/25] tools/xenstore: support live update for xenstored

On Tue, Dec 15, 2020 at 05:35:38PM +0100, Juergen Gross wrote:
> Today Xenstore is not restartable. This means a Xen server needing an
> update of xenstored has to be rebooted in order to let this update
> become effective.
> This patch series is changing that: The internal state of xenstored
> (the contents of Xenstore, all connections to various clients like
> programs or other domains, and watches) is saved in a defined format
> and a new binary is being activated consuming the old state. All
> connections are being restored and the new Xenstore binary will
> continue where the old one stopped.
> This patch series has been under (secret) development for quite some
> time. It hasn't been posted to xen-devel until now due to the various
> Xenstore related security issues which have become public only today.
> There will be a similar series for oxenstored posted.
> Xenstore-stubdom is not yet supported, but I'm planning to start
> working on that soon.
> Changes in V10 (for the members of the security team):
> - dropped patch 6 as requested by Andrew

I went through this series when it was posted to security@ and didn't
find that many issues. I guess I will wait for Andrew's comment to be
addressed and have a look again.




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