RISC-V ISA Explorer · Memory & Addressing

Sv48: Virtual Memory, 48-bit VA

Ratified 2019-05 · version 1.0

Four-level page tables widen the RV64 virtual address space to 48 bits for larger memory footprints.

Typical use: Paged virtual memory with a 256 TB address space

Specification

Dependencies

Requires

• Sv39

Required by

• Sv57

Instructions

No instruction encodings are listed for this extension in the catalogue.