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review.coreboot.org / coreboot / 1df1cf994aa9ebdd9d51103d2d618f6aa66df2d6
commit1df1cf994aa9ebdd9d51103d2d618f6aa66df2d6[log] [tgz]
authorEddie Vas <aeddiesharma@fb.com>Tue Aug 16 20:12:04 2022 -0700
committerFelix Held <felix-coreboot@felixheld.de>Sat Sep 24 01:19:13 2022 +0000
tree4b7a26680c02f136205b2cca3b80a5c45268aaac
parent1f5c5da812d5d71e9ee4f1b3ba47e5d323a8c05d [diff]
commonlib/fsp_relocate: add PE32 section support

Recently published Intel CedarIslandFSP binary contains PE images in
FSP-M and FSP-S. This causes coreboot boot hang on DeltaLake servers.
PI spec PI_Spec_1_7_final_Jan_2019 on uefi.org talks about FV files
requiring to support SECTION_PE32 sections and FSP specification
states that FSP images are created in alignment with PI specification.

FSP images are relocated at build time and run time using the func
fsp_component_relocate. That code only supported TE image relocation
so far.

The change required to add support for pe_relocate in fsp-relocate.c
I had to move a few functions to top of file as they need to be used
by pe_relocate but were placed below the te_relocate function. I chose
to place pe_relocate function next to te_relocate.
The code supports PE32 format, not PE32+, at this time.

Links for PE and FSP specs are provided below for reference.

Link= https://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/fsp-architecture-spec-v2.pdf
Link= https://uefi.org/sites/default/files/resources/PI_Spec_1_7_final_Jan_2019.pdf

TESTED=
This code is tested with FSP version 33A for DeltaLake boot which has
FSP-M and FSP-S as PE32 sections. This FSP version does not boot on
DeltaLake without this change.

Change-Id: I01e2c123d74f735a647b994aa66419c9796f193e
Signed-off-by: Eddie Sharma <aeddiesharma@fb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66819
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nathaniel L Desimone <nathaniel.l.desimone@intel.com>
1 file changed
tree: 4b7a26680c02f136205b2cca3b80a5c45268aaac
  1. 3rdparty/
  2. configs/
  3. Documentation/
  4. LICENSES/
  5. payloads/
  6. spd/
  7. src/
  8. tests/
  9. util/
  10. .checkpatch.conf
  11. .clang-format
  12. .editorconfig
  13. .gitignore
  14. .gitmodules
  15. .gitreview
  16. .mailmap
  17. AUTHORS
  18. COPYING
  19. gnat.adc
  20. MAINTAINERS
  21. Makefile
  22. Makefile.inc
  23. README.md
  24. toolchain.inc
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

Copyright and License

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.