Hi, Posting again with my cavium ID and CCing relevant folks
Live Migration between machines with different processorIds VM Migration between machines with different processorId values throws error in qemu/kvm. Though this check is appropriate but is overkill where two machines are of same SoC/arch family and have same core/gic but delta could be in other parts of Soc which have no effect on VM operation. There could be two ways to address this issue by ignoring the comparison of processorIDs and so need feedback from the community on this. a) Maintain a whitelist in qemu: This will be a set of all processorIds which are compatible and migration can happen between any of the machines with the Ids from this set. This set can be statically built within qemu binary. b) Provide an extra option with migrate command migrate tcp:<ip>:<port>:<dest_processor_id> This is to fake the src_processor_id as dest_processor_id, so the qemu running on destination machine will not complain. The overhead with this approach is that the destination machines Id need to be known beforehand. If there is some better way… please suggest. Thanks, Manish
