Clone this repo:


  1. b52062f Replace deprecated pkg_resources usage by Cindy Liu · 6 months ago master
  2. fef2126 kernel/shodan: increase plic irq config for i2s by Sam Leffler · 7 months ago
  3. 39ad846 security: Stop using FullLoader with PyYAML by June Tate-Gans · 7 months ago
  4. 6c9264a shodan: Adjust the max number of IRQ devices by June Tate-Gans · 7 months ago
  5. 2471655 kernel/nexus: remove the cpio archive memory carve-out by Sam Leffler · 10 months ago

The seL4 microkernel

This project contains the source code of seL4 microkernel.

For details about the seL4 microkernel, including details about its formal correctness proof, please see the website and associated FAQ.

DOIs for citing recent releases of this repository:

  • DOI

We welcome contributions to seL4. Please see the website for information on how to contribute.

This repository is usually not used in isolation, but as part of the build system in a larger project.

seL4 Basics



A hosted version of the manual for the most recent release can be found here.

A web version of the API can be found here

Repository Overview

  • include and src: C and ASM source code of seL4
  • tools: build tools
  • libsel4: C bindings for the seL4 ABI
  • manual: LaTeX sources of the seL4 reference manual

Build Instructions

See the seL4 website for build instructions.


A list of releases and current project status can be found under seL4 releases.