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Karthikeyan Ramasubramanian 153f976fff soc/amd/sabrina: Disable CCP DMA and HW MODEXP
Enabling them causes firmware keyblock/preamble and/or body verification
failure. Hence disabling them to use software based verification.
Re-enable them once the issue is root-caused.

BUG=b:217414563
TEST=Build and boot to OS in Skyrim with PSP and x86 verstage.

Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I7e259ae5d790977d08afcb0a77f8d4f38c85f39e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66134
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2022-07-27 13:41:30 +00:00
3rdparty Update vboot submodule to upstream main 2022-07-20 12:36:25 +00:00
Documentation Documentation: Add the coreboot logo in SVG format 2022-07-21 10:35:16 +00:00
LICENSES treewide: Unify Google branding 2022-07-04 14:02:26 +00:00
configs configs: Update prodrive hermes 2022-07-14 12:48:20 +00:00
payloads payloads/tianocore: Fix bootsplash/logo handling 2022-07-27 13:39:17 +00:00
spd util/spd_tools: Limit memory speed to 5500 Mbps for Sabrina 2022-07-19 15:11:53 +00:00
src soc/amd/sabrina: Disable CCP DMA and HW MODEXP 2022-07-27 13:41:30 +00:00
tests tests: Adjust the order of header files to include 2022-07-14 23:08:24 +00:00
util util/amdfwtool: Update the location of PSP verstage and signing key 2022-07-26 20:36:04 +00:00
.checkpatch.conf
.clang-format
.editorconfig
.gitignore .gitignore: Ignore .cache directory & compile_commands.json 2022-07-06 00:33:48 +00:00
.gitmodules tests: update CMocka to stable-1.1 2022-04-19 13:00:36 +00:00
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MAINTAINERS MAINTAINERS: Add myself (Matt DeVillier) as a maintainer for all AMD SoCs 2022-07-21 23:00:13 +00:00
Makefile Makefile: Add util/kconfig/Makefile.real to nocompile list 2022-07-17 22:17:10 +00:00
Makefile.inc Makefile.inc: objcopy extracts a wrong section of cbfs_master_header 2022-07-14 12:45:03 +00:00
README.md Treewide: Remove doxygen config files and targets 2022-05-28 01:24:51 +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:

  • 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.