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    64 repositories

    • riscv-isa-manual

      Public
      RISC-V Instruction Set Manual
      TeX
      •
      Creative Commons Attribution 4.0 International
      •752•4.3k•233•25•Updated Oct 3, 2025Oct 3, 2025

    • sail-riscv

      Public
      Sail RISC-V model
      Sail
      •
      Other
      •231•612•126•82•Updated Oct 3, 2025Oct 3, 2025

    • riscv-spmp

      Public
      The repo contains the SPMP architectural specification, which includes capabilities like access control of read/write/execute requests by an hart, address matching, encoding of permissions, exceptions for access violation, and support for virtualization.
      TeX
      •
      Creative Commons Attribution 4.0 International
      •14•21•1•0•Updated Oct 3, 2025Oct 3, 2025

    • riscv-debug-spec

      Public
      Working Draft of the RISC-V Debug Specification Standard
      Python
      •
      Other
      •98•489•63•10•Updated Oct 2, 2025Oct 2, 2025

    • riscv-b

      Public
      "B" extension - that represents the collection of the Zba, Zbb, and Zbs extensions
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •5•10•0•1•Updated Oct 2, 2025Oct 2, 2025

    • riscv-cheri

      Public
      This repository contains the CHERI extension specification, adding hardware capabilities to RISC-V ISA to enable fine-grained memory protection and scalable compartmentalization.
      memory-safetycapabilitiescompartmentalization
      TeX
      •
      Creative Commons Attribution 4.0 International
      •40•82•33•2•Updated Oct 2, 2025Oct 2, 2025

    • riscv-fast-interrupt

      Public
      Proposal for a RISC-V Core-Local Interrupt Controller (CLIC)
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •53•278•20•8•Updated Oct 2, 2025Oct 2, 2025

    • riscv-svvptc

      Public
      Obviating Memory-Management Instructions after Marking PTEs Valid (Svvptc)
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •5•5•0•1•Updated Oct 2, 2025Oct 2, 2025

    • riscv-smmtt

      Public
      This specification will define the RISC-V privilege ISA extensions required to support Supervisor Domain isolation for multi-tenant security use cases e.g. confidential-computing, trusted platform services, fault isolation and so on.
      access-controltrusted-computingtrusted-execution-environmentconfidential-computingsmmttsupervisor-domainsap-teesmsdidsmmptsmsdia
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •22•60•2•1•Updated Oct 2, 2025Oct 2, 2025

    • riscv-glossary

      Public
      Makefile
      •7•10•17•1•Updated Oct 2, 2025Oct 2, 2025

    • riscv-zabha

      Public
      The Zabha extension provides support for byte and halfword atomic memory operations.
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •9•11•0•1•Updated Oct 2, 2025Oct 2, 2025

    • riscv-performance-event-sampling

      Public
      Define 2 new extensions to, along with Zihpm and Sscofpmf, enable event and instruction sampling with precise attribution.
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •3•4•1•2•Updated Oct 2, 2025Oct 2, 2025

    • docs-dev-guide

      Public
      Documentation developer guide
      TeX
      •
      Creative Commons Attribution 4.0 International
      •38•116•8•4•Updated Oct 2, 2025Oct 2, 2025

    • riscv-cfi

      Public
      This specification is integrated into the Priv. and Unpriv. specifications. This repo is no longer maintained. Please refer to the Priv. and Unpriv. specifications at https://github.com/riscv/riscv-isa-manual
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •24•92•0•1•Updated Oct 2, 2025Oct 2, 2025

    • sig-functional-safety-whitepaper

      Public
      GitHub repository for the Functional Safety SIG Whitepaper Development
      TeX
      •
      Creative Commons Attribution 4.0 International
      •7•6•0•1•Updated Oct 2, 2025Oct 2, 2025

    • docs-resources

      Public
      Ruby
      •
      Creative Commons Attribution 4.0 International
      •25•42•3•0•Updated Oct 1, 2025Oct 1, 2025

    • riscv-performance-events

      Public
      RISC-V Performance Events Specification
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •7•9•10•3•Updated Oct 1, 2025Oct 1, 2025

    • riscv-opcodes

      Public
      RISC-V Opcodes
      Python
      •
      BSD 3-Clause "New" or "Revised" License
      •338•808•30•28•Updated Oct 1, 2025Oct 1, 2025

    • learn

      Public
      Tracking RISC-V Actions on Education, Training, Courses, Monitorships, etc.
      Creative Commons Zero v1.0 Universal
      •119•1.1k•1•0•Updated Sep 30, 2025Sep 30, 2025

    • riscv-docs-base-container-image

      Public
      A base container image populated with the dependencies to build the RISC-V Documentation.
      Apache License 2.0
      •10•17•0•3•Updated Sep 29, 2025Sep 29, 2025

    • docs.riscv.org

      Public
      HTML
      •2•0•6•3•Updated Sep 25, 2025Sep 25, 2025

    • integer-vector-absolute-difference

      Public
      RISC-V Integer Vector Absolute Difference
      TeX
      •
      Creative Commons Attribution 4.0 International
      •752•1•0•1•Updated Sep 25, 2025Sep 25, 2025

    • meta-riscv

      Public
      OpenEmbedded/Yocto layer for RISC-V Architecture
      riscvyocto-layeryoctoopenembeddedyocto-metaopenembedded-layerrisc-v
      BitBake
      •
      Other
      •160•408•19•1•Updated Sep 24, 2025Sep 24, 2025

    • riscv-memory-tagging

      Public
      Memory Tagging ISA extension that can be used by software to enforce memory tag checks on memory loads and stores
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •9•22•2•2•Updated Sep 24, 2025Sep 24, 2025

    • riscv-test-env

      Public
      C
      •
      Other
      •118•50•4•5•Updated Sep 22, 2025Sep 22, 2025

    • zibi

      Public
      Branch with Immediate (Zibi) Ratification Plan
      TeX
      •
      Creative Commons Attribution 4.0 International
      •752•2•0•0•Updated Sep 19, 2025Sep 19, 2025

    • riscv-profiles

      Public
      RISC-V Architecture Profiles
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •44•166•17•3•Updated Sep 3, 2025Sep 3, 2025

    • riscv-j-extension

      Public
      Working Draft of the RISC-V J Extension Specification
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •24•191•7•4•Updated Aug 31, 2025Aug 31, 2025

    • riscv-aia

      Public
      Makefile
      •
      Creative Commons Attribution 4.0 International
      •25•96•31•2•Updated Aug 28, 2025Aug 28, 2025

    • riscv-plic-spec

      Public
      PLIC Specification
      Creative Commons Attribution 4.0 International
      •49•148•11•2•Updated Aug 26, 2025Aug 26, 2025