[nova] Auto-convergence but for I/O

Is there any option for disk I/O auto-convergence like conf.libvirt.live_migration_permit_auto_converg for memory-intensive instances? The use case is for an I/O intensive VM, so the disk cannot be migrated. Instead, it is necessary to change the max IO with `$ virsh blkdeviotune` then, migrate the instance and replace the current value with the old using the same command. regards.