You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Subrata Banik fb970a43bd soc/intel/meteorlake: Refactor heci finalize functions 14 hours ago
3rdparty 3rdparty/libgfxinit: Update submodule pointer to 066e52eeaa32 15 hours ago
Documentation Docs: Add SPDX headers to Makefiles 6 days ago
LICENSES src/mb: Update unlicensable files with the CC-PDDC SPDX ID 4 months ago
configs configs: Buildtest 64bit amd/picasso 2 weeks ago
payloads libpayload: Fix compiler warnings 5 days ago
spd spd/lp5: Re-generate the SPD data 4 weeks ago
src soc/intel/meteorlake: Refactor heci finalize functions 14 hours ago
tests cbmem_top_chipset: Change the return value to uintptr_t 1 week ago
util util/testing: Fully clean all but the standard GCC build 1 day ago
.checkpatch.conf checkpatch.conf: Ignore check for pointer comparisons to NULL 2 months ago
.clang-format lint/clang-format: set to 96 chars per line 4 years ago
.editorconfig Add .editorconfig file 3 years ago
.gitignore .gitignore: Add .vscode/ 3 months ago
.gitmodules Add SBOM (Software Bill of Materials) Generation 3 months ago
.gitreview add .gitreview 10 years ago
.mailmap .mailmap: Add a .mailmap file for git 9 months ago
AUTHORS arm/libgcc: Support signed 64-bit division 4 months ago
COPYING update license template. 17 years ago
MAINTAINERS MAINTAINERS: Make Misc Fixes 4 weeks ago
Makefile Makefile: Add targets to add and remove symlinks 1 month ago build: List all Kconfigs in CBFS `config` file, compress it 1 week ago Treewide: Remove doxygen config files and targets 6 months ago
gnat.adc treewide: Remove "this file is part of" lines 3 years ago coreboot: Add support for include-what-you-use 2 months ago

coreboot README

coreboot is a Free Software project aimed at replacing the proprietary BIOS
(firmware) found in most computers. coreboot performs a little bit of
hardware initialization and then executes additional boot logic, called a

With the separation of hardware initialization and later boot logic,
coreboot can scale from specialized applications that run directly
firmware, run operating systems in flash, load custom
bootloaders, or implement firmware standards, like PC BIOS services or
UEFI. This allows for systems to only include the features necessary
in the target application, reducing the amount of code and flash space

coreboot was formerly known as LinuxBIOS.


After the basic initialization of the hardware has been performed, any
desired "payload" can be started by coreboot.

See for a list of supported payloads.

Supported Hardware

coreboot supports a wide range of chipsets, devices, and mainboards.

For details please consult:

Build Requirements

  • make
  • gcc / g++
    Because Linux distribution compilers tend to use lots of patches. coreboot
    does lots of "unusual" things in its build system, some of which break due
    to those patches, sometimes by gcc aborting, sometimes - and that's worse -
    by generating broken object code.
    Two options: use our toolchain (eg. make crosstools-i386) or enable the
    ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this
  • iasl (for targets with ACPI support)
  • pkg-config
  • libssl-dev (openssl)


  • gdb (for better debugging facilities on some targets)
  • ncurses (for make menuconfig and make nconfig)
  • flex and bison (for regenerating parsers)

Building coreboot

Please consult for details.

Testing coreboot Without Modifying Your Hardware

If you want to test coreboot without any risks before you really decide
to use it on your hardware, you can use the QEMU system emulator to run
coreboot virtually in QEMU.

Please see for details.

Website and Mailing List

Further details on the project, a FAQ, many HOWTOs, news, development
guidelines and more can be found on the coreboot website:

You can contact us directly on the coreboot mailing list:

The copyright on coreboot is owned by quite a large number of individual
developers and companies. Please check the individual source files for details.

coreboot is licensed under the terms of the GNU General Public License (GPL).
Some files are licensed under the "GPL (version 2, or any later version)",
and some files are licensed under the "GPL, version 2". For some parts, which
were derived from other projects, other (GPL-compatible) licenses may apply.
Please check the individual source files for details.

This makes the resulting coreboot images licensed under the GPL, version 2.