# google/crosvm

The Chrome OS Virtual Machine Monitor - Mirror of https://chromium.googlesource.com/crosvm/crosvm/

Repository: https://github.com/google/crosvm
Canonical: https://ross.abutalabs.com/products/crosvm
Homepage: https://crosvm.dev/book/
Language: Rust
License: BSD-3-Clause
License Family: permissive
Last push: 2026-09-03T00:29:26+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 35, longevity 100
- inputs: {"age_days": 1815, "days_push": 0, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1290, forks 177 (observed 2026-09-03T02:15:12.403951+00:00)

## What it is
crosvm is a secure, lightweight Virtual Machine Monitor (VMM) written in Rust, originally built for ChromeOS to run Linux and Android guests. It uses hardware-assisted virtualization (KVM, WHPX, etc.) with per-device sandboxed processes via Minijail, seccomp, and namespaces.

## Use cases
- run Linux VMs on ChromeOS with Crostini
- run Android guests in a sandboxed VM
- run untrusted operating systems in an isolated environment
- emulate virtio devices like network, disk, GPU, and audio for guests
- test Android builds with the Cuttlefish emulator
- run lightweight VMs on Windows via WHPX or HAXM

## When to choose
- you need a memory-safe, security-focused VMM written in Rust
- you want per-device process sandboxing with seccomp and namespaces
- you target ChromeOS, Android, or Linux with KVM-based virtualization
- you need broad virtio device support including GPU acceleration and vhost-user

## When to avoid
- you need a full-featured general-purpose VMM with a GUI like VirtualBox or VMware
- you require macOS host support
- you need extensive non-virtio device emulation or live migration like QEMU offers
- you want a tool with a large third-party plugin ecosystem

## Facets
- artifact type: application
- maturity: active
- function: security, cli
- domain: security, operating-systems, developer-tools
- platform: windows, rust, cli
- tags: vmm, kvm, virtio, chromeos, hypervisor, minijail, memory-safety, virtualization, sandboxing, linux, android

## Member repositories
- google/crosvm (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:12.403951+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 2026-08-30T04:56:39.425993+00:00, confidence not recorded.
  - readme: https://github.com/google/crosvm (fetched 2026-09-03T02:15:12.403951+00:00, sha b9a8cfa023d0)
  - homepage: https://crosvm.dev/book/ (fetched 2026-08-29T12:12:22.341534+00:00, sha 286b4da069ea)
  - site_page: https://crosvm.dev/book/running_crosvm/features.html (fetched 2026-08-29T12:12:22.345014+00:00, sha 7ef40e062ef1)
  - site_page: https://crosvm.dev/book/package_documentation.html (fetched 2026-08-29T12:12:22.346760+00:00, sha 2d0156584e17)
  - site_page: https://crosvm.dev/doc/crosvm (fetched 2026-08-29T12:12:22.348350+00:00, sha be3ae0772e6b)
- Data as of 2026-08-30T08:39:29.467469+00:00.