[libvirt] why doesn't libvirt let qemu autostart live-migrated VMs?

[Daniel P. Berrange]

On Mon, Apr 14, 2014 at 05:50:07PM -0600, Chris Friesen wrote:
> Hi,
> 
> I've been digging through the libvirt code and something that struck
> me was that it appears that when using qemu libvirt will migrate the
> instance with autostart disabled, then sit on the source host
> periodically polling for migration completion, then once the host
> detects that migration is completed it will tell the destination to
> start up the VM.
> 
> Why don't we let the destination autostart the VM once migration is
> complete?

Libvirt has to have synchronization point on the target machine, so
that we can acquire any disk leases associated with the VM before
the CPUs are started.

Regards,
Daniel
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