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Juergen Gross
6bc1c1aba0
Extend the definition of the Xenstore migration stream to cover new features: - per domain features - extended watches (watch depth) - per domain quota Some of those additions (per domain features and extended watches) require bumping the migration stream version to "2", as usage of those features will require to transport mandatory new information in the migration stream. One note regarding the GLOBAL_QUOTA_DATA record: the split of quota between global and per-domain ones is meant to support the possibility to pass on unknown quota settings for newly created domains to other Xenstore instances: Imagine Xenstore A knows about global quota g and domain quota d, while Xenstore B doesn't know both. Initially I'm running Xenstore A on a host, then I'm live-updating to B. B gets the information that g is global, and d is per-domain, but has no other idea what to do with the values of g and d. OTOH it knows that each new domain should get d with the related value, so it can set d for each newly created domain. When B is either downgraded to A again, or a domain is migrated to another host running A, B can add the quota information of d for all domains. Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Julien Grall <jgrall@amazon.com>
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