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README.md

Welcome to the RISC-V Software Repos 👋

These repos consist of RISC-V software that is maintained by RISC-V International. These repositories represent upstream sources for many open source projects.

Things you'll find here include:

Spike, a RISC-V Simulator
riscof, the RISC-V Architectural Test Framework
opensbi, a RISC-V Supervisor Binary Interface reference implementation

If you don't find what you're looking for here, try one of our other GitHub organizations:

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riscv-isa-sim riscv-isa-sim Public

Spike, a RISC-V ISA Simulator

C++ 3.3k 1.1k
opensbi opensbi Public

RISC-V Open Source Supervisor Binary Interface

C 1.6k 729
riscv-tests riscv-tests Public

Assembly 1.3k 571
riscv-tools riscv-tools Public archive

RISC-V Tools (ISA Simulator and Tests)

Shell 1.2k 448
riscv-pk riscv-pk Public

RISC-V Proxy Kernel

C 712 344
homebrew-riscv homebrew-riscv Public

homebrew (macOS) packages for RISC-V toolchain

Ruby 371 56

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Showing 10 of 25 repositories

riscv-isa-sim Public
Spike, a RISC-V ISA Simulator

riscv-software-src/riscv-isa-sim's past year of commit activity

C++ 3,278 1,138 363 71 Updated Nov 11, 2026
opensbi Public
RISC-V Open Source Supervisor Binary Interface

riscv-software-src/opensbi's past year of commit activity

C 1,563 729 96 8 Updated Nov 10, 2026
librpmi Public
Reference implementation of RPMI specification as a library.

riscv-software-src/librpmi's past year of commit activity

C 19 26 3 2 Updated Nov 5, 2026
riscv-perf-model Public
Example RISC-V Out-of-Order/Superscalar Processor Performance Core and MSS Model

riscv-software-src/riscv-perf-model's past year of commit activity

C++ 227 Apache-2.0 93 25 6 Updated Nov 4, 2026
riscv-server-platform-tests Public
RISC-V server platform compliance test suite

riscv-software-src/riscv-server-platform-tests's past year of commit activity

Python 0 CC-BY-4.0 1 0 0 Updated Nov 2, 2026
riscv-tests Public

riscv-software-src/riscv-tests's past year of commit activity

Assembly 1,262 571 124 21 Updated Oct 19, 2026
homebrew-riscv Public
homebrew (macOS) packages for RISC-V toolchain

riscv-software-src/homebrew-riscv's past year of commit activity

Ruby 371 56 2 0 Updated Oct 13, 2026
sail-riscv-tests Public
Precompiled test suites for comprehensive testing of the Sail RISC-V model

riscv-software-src/sail-riscv-tests's past year of commit activity

Just 3 Apache-2.0 4 1 5 Updated Sep 29, 2026
riscv-udb-for-ame Public Forked from riscv/riscv-unified-db
RISC-V UDB Fork for AME Development

riscv-software-src/riscv-udb-for-ame's past year of commit activity

Ruby 1 265 0 0 Updated Jun 29, 2026
riscv-mirror-mavis Public
Mirror of Mavis. Mavis is a framework that allows decoding of the RISC-V ISA into custom instruction class types as well as custom extensions to those class types.

riscv-software-src/riscv-mirror-mavis's past year of commit activity

C++ 1 Apache-2.0 1 0 0 Updated May 29, 2026

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