RISC-V ISA Explorer · Memory & Addressing
Smpmpdeleg: PMP/SPMP Sharing
Ratified 2026-08 · version 1.0.0
Delegates a contiguous range of M-mode PMP entries to supervisor mode, where they become SPMP entries, so one block of hardware serves both.
Typical use: Reusing PMP hardware instead of duplicating it for SPMP
Open Smpmpdeleg in the explorerDependencies
Requires
Required by
Instructions
No instruction encodings are listed for this extension in the catalogue.
Control and status registers (1)
| Name | Address | Mode | Description |
|---|---|---|---|
mpmpdeleg | 0x316 | M | PMP-to-SPMP delegation control |