On Sun, May 28, 2023 at 05:06:45PM +0300, Avihai Horon wrote: > Implement switchover ack logic. This prevents the source from stopping > the VM and completing the migration until an ACK is received from the > destination that it's OK to do so. > > To achieve this, a new SaveVMHandlers handler switchover_ack_needed() > and a new return path message MIG_RP_MSG_SWITCHOVER_ACK are added. > > The switchover_ack_needed() handler is called during migration setup in > the destination to check if switchover ack is used by the migrated > device. > > When switchover is approved by all migrated devices in the destination > that support this capability, the MIG_RP_MSG_SWITCHOVER_ACK return path > message is sent to the source to notify it that it's OK to do > switchover. > > Signed-off-by: Avihai Horon <avih...@nvidia.com>
Reviewed-by: Peter Xu <pet...@redhat.com> -- Peter Xu
