# LekKit/RVVM

The RISC-V Virtual Machine

Repository: https://github.com/LekKit/RVVM
Canonical: https://ross.abutalabs.com/products/rvvm
Language: C
License: GPL-3.0
License Family: copyleft
Topics: risc-v, riscv, riscv32, riscv-emulator, vm, virtual-machine, emulator, emulation, emulators, c, risc, instruction-decoding, rvvm, riscv64, jit, translation, tracing-jit, riscv-linux, riscv-simulator, linux
Last push: 2026-08-26T13:33:29+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 8, longevity 100
- inputs: {"age_days": 2025, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1296, forks 96 (observed 2026-08-28T04:04:16.951833+00:00)

## What it is
RVVM is a high-performance RISC-V virtual machine and emulator written in C, featuring a tracing JIT with x86_64, ARM64, and RISC-V backends. It runs guest operating systems like Linux, FreeBSD, and Haiku, and provides a library API (librvvm) for machine and userland emulation.

## Use cases
- run risc-v linux on my x86 machine
- emulate riscv64 without qemu
- test risc-v operating systems like freebsd or haiku
- embed a risc-v virtual machine in my application
- run risc-v binaries on a foreign-arch host
- fast risc-v emulator with jit compilation
- try risc-v in the browser via wasm

## When to choose
- you need a fast, lean RISC-V system emulator with JIT acceleration
- you want a portable C library for embedding RISC-V emulation
- you need to boot RISC-V guest OSes like Linux, FreeBSD, or Haiku
- you want userland networking that works on any host OS

## When to avoid
- you need to emulate architectures other than RISC-V
- you require the full device ecosystem and maturity of QEMU
- you need production-grade userland emulation, which is still work-in-progress

## Facets
- artifact type: application
- maturity: active
- function: simulation, interpreter, compiler, sdk, cli
- domain: operating-systems, embedded-systems, developer-tools, simulation, hardware
- platform: windows, cross-platform, cli, wasm, cpp, c
- tags: risc-v, emulator, virtual-machine, jit, system-emulation, userland-emulation, librvvm, linux, macos

## Member repositories
- LekKit/RVVM (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:16.951833+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:53:55.813716+00:00, confidence not recorded.
  - readme: https://github.com/LekKit/RVVM (fetched 2026-08-28T04:04:16.951833+00:00, sha 6bfb2936cb68)
- Data as of 2026-08-30T08:39:29.467469+00:00.