Ratified version of the RISC-V S-level Physical Memory Protection (SPMP) specification.
The Board of Directors approved ratification on 2026-08-24 (RVS-4950).
The specification is now at version 1.0 and in the Ratified state. No changes are allowed; any necessary modifications must be addressed through a follow-on extension.
Covers the Sspmp, Sspmpen and Smpmpdeleg extensions.