On Thursday, 2021-07-08 at 08:22:02 -07, Richard Henderson wrote: > On 7/8/21 12:45 AM, David Edmondson wrote: >> Actually, that's nonsense. With KVM or HVF we have to use the offsets of >> the host CPU, as the hardware won't do anything else, irrespective of >> the general CPU model chosen. >> >> To have KVM -> TCG migration work it would be necessary to pass the >> offsets in the migration stream and have TCG observe them, as you >> originally said. >> >> TCG -> KVM migration would only be possible if TCG was configured to use >> the same offsets as would later required by KVM (meaning, the host CPU). > > And kvm -> kvm migration, with the same general cpu model chosen, but with different host > cpus with different offsets? > > It seems like we must migrate then and verify the offsets in that case, so that we can > fail the migration. Agreed. I will look into migrating the offsets. dme. -- The sound of a barking dog on a loop, a plane rises in the crystal blue.
