Re: [Qemu-devel] Live migration - exec: support to be reintroduced?

[Jamie Lokier]

Daniel P. Berrange wrote:
> > However, why is it not just using savevm?  Saving the CPU state in the 
> > absence of checkpointing storage doesn't make a lot of sense.
> 
> This isn't for snapshotting, so checkpointing of storage is unneccessary.
> This is just straight save+restore, akin to hibernate-to-disk for a 
> physical machine. 
> 
> The savevm command only works with qcow files, which is not guarenteed
> to be available in this context.
> 
> We do intend to support real snapshotting of VMs at some point, for which
> "savevm" could be useful

Yes, we had a thread a couple of months ago about why "savevm"
snapshotting in qcow2 is not always appropriate or useful.

-- Jamie