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review.coreboot.org / coreboot / 5902d88264353436c33580d9a9ae82247dbb52ab
commit5902d88264353436c33580d9a9ae82247dbb52ab[log] [tgz]
authorSridhar Siricilla <sridhar.siricilla@intel.com>Sat Jun 25 16:30:52 2022 +0530
committerFelix Held <felix-coreboot@felixheld.de>Thu Jun 30 13:57:18 2022 +0000
treeabbea3e670813d458ea012493833d155a9f820bc
parent9dbf9689c98bf67cd541a15b7944696ce19295c0 [diff]
commonlib: Handle DIR64 relocation type in FSP relocation code

It seems fixup or adjustment addition for relocation type
EFI_IMAGE_REL_BASED_DIR64 is missing in the fsp rebasing code. The
patch address the miss. Without extending the fixup for the relocation
type, build system throws warnings during the rebasing of FSP-M and
FSP-S blobs which are built with 64bit.

Portion of build output containing warning with debug enabled cbfs lib:
...................................................
E: file offset: 9218
E: file type = 4
E: file attribs = 0
E: section offset: 9230
E: section type: 12
E: TE image at offset 9234
E: TE Image 0xffed80d4 -> 0xff256234 adjust value: ff37e000
E: Relocs for RVA offset 12000
E: Num relocs in block: 18
E: reloc type a offset f40
E: Unknown reloc type: a

Portion of build output after fix:
..................................
E: file offset: 9218
E: file type = 4
E: file attribs = 0
E: section offset: 9230
E: section type: 12
E: TE image at offset 9234
E: TE Image 0xffed80d4 -> 0xff256234 adjust value: ff37e000
E: Relocs for RVA offset 12000^M
E: Num relocs in block: 18
E: reloc type a offset f40
E: Adjusting 0x7f2e7f377024 ffee9192 -> ff267192
E: reloc type a offset f48

TEST: Integrate FSP blobs built with 64 bit and do boot test.

Signed-off-by: Sridhar Siricilla <sridhar.siricilla@intel.com>
Change-Id: I894007ec50378357c00d635ec86d044710892aab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65383
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
1 file changed
tree: abbea3e670813d458ea012493833d155a9f820bc
  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.