# title
The Realm Management Extension (RME), for SMMUv3

# topic.label
The Realm Management Extension (RME), for SMMUv3

# metadata.contentDescription
This document specifies the behavior of new SMMU features to support features introduced in the Realm Management Extension. This document is now RETIRED. Please refer to the Arm System Memory Management Unit Architecture Specification, SMMU architecture version 3 for a specification of the Realm Management Extension (RME) for SMMUv3.