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Duncan Laurie f02bf35e00 arch/x86/tables: Move max ACPI table size to Kconfig 
The maximum ACPI table size is currently hardcoded to 144 KiB.
When using QEMU with TPM enabled there is ~200 KiB of ACPI tables
returned by the fw_cfg interface, so in order to allow this to be
overridden by a mainboard move it to Kconfig.

This is seen when using a TPM with qemu as it will hang when
processing the fw_cfg tables.

qemu-system-x86_64 \
  -machine q35 -enable-kvm -vga virtio -serial stdio \
  -drive 'id=hd,file=disk.bin' -bios coreboot.rom \
  -chardev 'socket,id=swtpm,path=/tmp/swtpm/swtpm-sock' \
  -tpmdev 'emulator,id=tpm0,chardev=swtpm' \
  -device 'tpm-tis,tpmdev=tpm0'

Change-Id: Ib5baa8fe12cb9027a340875f1ccf5fef6f9460bd
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39832
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
 		2020-03-31 10:39:33 +00:00
3rdparty 3rdparty/libgfxinit: Update submodule pointer 2020-03-09 08:20:12 +00:00
Documentation Documentation/mb/lenovo: Test shrunken ME on Ivy Bridge 2020-03-31 10:32:25 +00:00
LICENSES LICENSES: Add licenses used in the coreboot repo 2019-10-30 08:23:51 +00:00
configs configs: Add builder config to create a working Cedar Island CRB 2020-03-26 18:15:04 +00:00
payloads libpayload/drivers/nvram: Fix coding style 2020-03-23 08:35:56 +00:00
src arch/x86/tables: Move max ACPI table size to Kconfig 2020-03-31 10:39:33 +00:00
util util/sconfig: emit NULL sibling fields 2020-03-30 08:37:56 +00:00
.checkpatch.conf .checkpatch.conf: Ignore a few more warnings 2018-08-13 12:23:24 +00:00
.clang-format lint/clang-format: set to 96 chars per line 2019-06-13 20:14:00 +00:00
.editorconfig Add .editorconfig file 2019-09-10 12:52:18 +00:00
.gitignore cbfstool: Build vboot library 2020-03-23 08:34:23 +00:00
.gitmodules submodules: Add 3rdparty/amd_blobs 2019-10-31 12:28:38 +00:00
.gitreview
…
AUTHORS AUTHORS: Add authors from util/ 2020-03-18 18:22:37 +00:00
COPYING
…
MAINTAINERS mb/libretrend/lt1000: Add Libretrend LT1000 mainboard 2020-03-10 10:04:05 +00:00
Makefile cbfstool: Build vboot library 2020-03-23 08:34:23 +00:00
Makefile.inc Makefile.inc: Don't run `ifittool` with CONFIG_UPDATE_IMAGE 2020-03-25 10:51:50 +00:00
README.md README.md: Remove link to deprecated wiki 2019-11-16 20:39:55 +00:00
gnat.adc gnat.adc: Do not generate assertion code for Refined_Post 2016-10-29 01:33:31 +02:00
toolchain.inc Makefile: Remove romcc 2019-12-27 08:59:59 +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

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.