[libvirt] [PATCH V6] support offline migration

[Daniel P. Berrange]

On Tue, Sep 11, 2012 at 10:20:19AM +0800, liguang wrote:
> original migration did not aware of offline case
> so, add code to support offline migration quietly
> (did not disturb original migration) by pass
> VIR_MIGRATE_OFFLINE flag to migration APIs if the
> domain is really inactive, and
> migration process will not puzzeled by domain
> offline and exit unexpectly.
> these changes did not take care of disk images the
> domain required, for disk images could be transfered
> by other APIs as suggested.
> so, the migration result is just make domain
> definition alive at target side.

I'm not entirely happy with the semantics wrt to the PERSIST_DEST
flag - this is basically doing persistence without having the
flag specified.

Daniel
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