On Tue, Sep 17, 2019 at 10:44:25AM +0100, Dr. David Alan Gilbert wrote: > * Balamuruhan S (bal...@linux.ibm.com) wrote: > > On Mon, Sep 16, 2019 at 03:50:06PM +0100, Dr. David Alan Gilbert wrote: > > > * Balamuruhan S (bal...@linux.ibm.com) wrote: > > > > add migration test to query machine types supported by qemu binary > > > > and migrate vm will all supported type. > > > > > > > > Signed-off-by: Balamuruhan S <bal...@linux.ibm.com> > > > > > > Depending on the architecture you might find that some machine types > > > aren't migratable while some are. > > > > Thanks Dave, is there a way to query/check whether a machine type on the > > architecture is migratable or should we try migrating and handle exception > > on failure ? > > I don't know a way to detect it; you can add -only-migratable to get > qemu to fai early if a device is declared as being non-migratable; but > that still doesn't say that all the devices have actually been tested > migrating.
At present we kind of have an informal distinction between those
machine types that are mature and maintained enough to support
migration (which I think is just pc, q35, pseries and arm virt) and
those which aren't.
There isn't, as far as I know, a way to detect this.
I know we've mentioned at least briefly the idea of formalizing this
distinction at qemu summit, but I don't think the discussion went
anywhere.
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
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