@classmethod
def check_version(cls, target, logger):
    """
        Check the target and see if its kernel version matches our view of the world
        """
    parts = target.kernel_version.parts
    ref_parts = 4, 4, 0
    if parts < ref_parts:
        logger.warn(
            'Sched domain flags are defined for kernels v{} and up, but target is running v{}'
            .format(ref_parts, parts))
