Paul Brook wrote:
I never said you need the same host. All the save/restore code
should be host independent. It should be possible to save state on
(say) i386 and restore on ppc64. Anything that prevents this is IMO
a bug.
For KVM you're likely to need a cpu with at least as many features
as the old one, but that's the price you pay for using host hardware
features.
I'd prefer the "host hardware features" to be an acceleration
mechanism, than something which makes a VM dependent on the specific
host it's running on.
Can't KVM invoke QEMU's emulation capabilities for those things it
cannot provide itself because of missing host abilities?