On Thu, Jun 25, 2015 at 02:49:08PM +0100, Peter Maydell wrote: > On 25 June 2015 at 14:44, Marc Zyngier <marc.zyngier@xxxxxxx> wrote: > > It should always be possible to emulate a "known" CPU on a generic host, > > and it should be able to migrate. The case we can't migrate is when we > > let the guest be generic (which I guess should really be unknown, and > > not generic). > > > > So if the user specify "-cpu cortex-a57" on the command line, the guest > > should be able to migrate from an A72 to an A53. if the user specified > > "-cpu host", the resulting guest won't be able to migrate. > > > > Does it make sense? > > Yes. We've always said "-cpu host" won't be cross-host migratable > from a QEMU point of view. > ok, this makes sense. It's basically up to userspace to mandate that trying to migrate something that used unknown cpu (via -cpu host or whatever) cannot be migrated. -Christoffer -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
