'Check if it is possible to execute live migration.
This runs checks on the destination host, and then calls
back to the source host to check the results.
:param context: security context
:param instance: nova.db.sqlalchemy.models.Instance
:param src_compute_info: Info about the sending machine
:param dst_compute_info: Info about the receiving machine
:param block_migration: if true, prepare for block migration
:param disk_over_commit: if true, allow disk over commit
:returns: a LiveMigrateData object (hypervisor-dependent)'

def check_can_live_migrate_destination(self, context, instance, src_compute_info, dst_compute_info, block_migration=False, disk_over_commit=False):

    raise NotImplementedError()
