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Indan Zupancic 180eb4db78 Aarch32, FPU: Remove FPEXC DEX and EX checks According to Arm documentation, the exception-handling routine needs to zero the following bits in FPEXC: DEX, IDF, IXF, UFF, OFF, DZF and IOF In seL4, the user space fault handler should do this, as the kernel doesn't know when user space is done handling the FPU trap. In case of virtualisation, the guest kernel should clear these bits. Now that the seL4 kernel doesn't handle FPU traps itself any more, user space can handle asynchronous traps if it wants to. Signed-off-by: Indan Zupancic <indan@nul.nu>		2025-07-24 16:44:08 +10:00
.github/workflows	github: main l4v now on Isabelle2025	2025-06-13 11:29:05 +01:00
.reuse	dep5 file for additional license information	2020-03-09 18:00:18 +08:00
configs	configs: mark Ultra96v2 as supported by the proofs	2025-04-01 09:57:28 +11:00
include	Aarch32, FPU: Remove FPEXC DEX and EX checks	2025-07-24 16:44:08 +10:00
libsel4	Add seL4_TCB_SetFlags Syscall	2025-07-24 16:44:08 +10:00
LICENSES	manual: apply foundation branding	2021-06-17 20:19:51 +10:00
manual	Add seL4_TCB_SetFlags Syscall	2025-07-24 16:44:08 +10:00
src	x86: Fix Style Errors	2025-07-24 16:44:08 +10:00
tools	python-deps: bump cmake-format and autopep8	2025-07-22 12:42:33 +01:00
.cmake-format.yaml	style: fix cmake formatting spec	2024-03-11 19:26:48 +00:00
.gitignore	parse_doxygen_xml: minor typos and python lints	2025-07-15 08:20:45 +10:00
CAVEATS.md	configs: add zynqmp and rpi4 to verified platforms	2024-07-08 14:17:49 +10:00
CHANGES.md	CHANGES: update releases link	2025-07-23 10:18:04 +10:00
CMakeLists.txt	Fixes #1334 : install target fails arm_hyp configs	2025-03-05 18:23:45 +11:00
CODE_OF_CONDUCT.md	add link to code of conduct	2020-04-01 17:23:36 +08:00
config.cmake	FPU: Save and restore FPU state based on TCB flag	2025-07-24 16:44:08 +10:00
CONTRIBUTING.md	Update links after seL4 website re-org	2025-04-29 17:17:49 +10:00
CONTRIBUTORS.md	CONTRIBUTORS: add contributors since 12.1.0	2024-06-25 10:40:10 +10:00
FindseL4.cmake	Convert license tags to SPDX identifiers	2020-03-09 13:21:49 +08:00
gcc.cmake	Detect 'aarch64-elf-' toolchain	2025-05-26 06:01:48 +02:00
gdb-macros	Update GDB macros	2022-05-18 13:40:55 +10:00
LICENSE.md	Update links after seL4 website re-org	2025-04-29 17:17:49 +10:00
llvm.cmake	Bump minimum CMake version	2025-02-26 17:11:57 +11:00
README.md	README: update links for new docsite structure	2025-07-23 10:18:04 +10:00
SECURITY.md	meta: add vulnerability disclosure policy (#424 )	2021-06-30 15:28:52 +10:00
VERSION	Update VERSION file to 13.0.0-dev	2024-07-02 06:59:46 +10:00

README.md

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 sel4.systems website and associated FAQ.

DOIs for citing recent releases of this repository:

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

Community

Open-source help and support:

See also the contact links on the seL4 website.

Reporting security vulnerabilities

If you believe you have found a security vulnerability in seL4 or related software, we ask you to follow our vulnerability disclosure policy.

Manual

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

A web version of the API documentation is available as well.

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.

Status

Releases: list of available seL4 releases
Roadmap: new features in development
Hardware Support: information about hardware platform ports
Kernel Options: information about available config options and features

License

See the file LICENSE.md.