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Furquan Shaikh 3959aa6351 southbridge/intel/common: Add an option to allow stitching of CSE binary
In the following changes, CSE binary for some platforms will be
stitched at build time instead of adding a pre-built binary. This
change adds a new Kconfig `STITCH_ME_BIN` which allows mainboard to
select if it wants to stitch CSE binary instead of adding a pre-built
one. In this case, ME_BIN_PATH is not visible to user and instead
mainboard and/or SoC code is expected to provide the recipe for
stitching the CSE image.

BUG=b:189177580

Change-Id: I78ab377e110610f9ef4d86a2b6eeb4113897df85
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58083
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-10-19 16:08:58 +00:00
3rdparty Update vboot submodule to upstream main (13f601f) 2021-09-29 15:35:28 +00:00
Documentation Documentation: Improve preamble of coding style 2021-10-17 11:47:01 +00:00
LICENSES treewide: Remove trailing whitespace 2021-02-17 17:30:05 +00:00
configs configs/config.google_meep_cros: don't select ADD_FSP_BINARIES 2021-09-04 18:33:29 +00:00
payloads libpayload: Add unit-tests framework and first test case 2021-10-18 12:33:49 +00:00
spd spd: Add SPD for 4JQA-0622AD to spd/ 2021-09-23 06:24:11 +00:00
src southbridge/intel/common: Add an option to allow stitching of CSE binary 2021-10-19 16:08:58 +00:00
tests tests: Add lib/lzma-test test case 2021-10-14 13:13:07 +00:00
util util/cse*: Add cse_helpers.{c,h} 2021-10-19 16:08:45 +00:00
.checkpatch.conf lint: checkpatch: Only exclude specific src/vendorcode/ subdirectories 2021-04-06 16:04:41 +00:00
.clang-format
.editorconfig Add .editorconfig file 2019-09-10 12:52:18 +00:00
.gitignore .gitignore: Ignore .test/.dependencies globally 2020-10-31 18:21:36 +00:00
.gitmodules .gitmodules: Update intel-microcode submodule to track branch=main 2021-06-09 17:20:50 +00:00
.gitreview
AUTHORS AUTHORS, util/: Drop individual copyright notices 2020-05-09 21:21:32 +00:00
COPYING
MAINTAINERS MAINTAINERS: Add Reka for SPD utilities 2021-10-15 07:42:09 +00:00
Makefile util/kconfig: Uprev to Linux 5.13's kconfig 2021-07-13 20:28:14 +00:00
Makefile.inc util/cse_serger: Add a new tool for stitching CSE components 2021-10-19 16:08:24 +00:00
README.md README.md: Remove link to deprecated wiki 2019-11-16 20:39:55 +00:00
gnat.adc treewide: Remove "this file is part of" lines 2020-05-11 17:11:40 +00:00
toolchain.inc build system: immediately report what users are supposed to look into 2021-10-18 16:39:25 +00:00

README.md

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 payload.

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 required.

coreboot was formerly known as LinuxBIOS.

Payloads

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

See https://www.coreboot.org/Payloads 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 case).
  • iasl (for targets with ACPI support)
  • pkg-config
  • libssl-dev (openssl)

Optional:

  • doxygen (for generating/viewing documentation)
  • 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 https://www.coreboot.org/Build_HOWTO 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 https://www.coreboot.org/QEMU 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:

https://www.coreboot.org

You can contact us directly on the coreboot mailing list:

https://www.coreboot.org/Mailinglist

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.