| commit | 571e7f02de2d9e4047c28ace45430a777252cba3 | [log] [tgz] |
|---|---|---|
| author | Raul E Rangel <rrangel@chromium.org> | Tue Nov 02 11:51:48 2021 -0600 |
| committer | Raul Rangel <rrangel@chromium.org> | Tue Nov 16 18:20:31 2021 +0000 |
| tree | e0351346f60a7396747ba50e4ee63f29eb70b425 | |
| parent | d7e7d60e0fd71c53025d8b081b59cd3d8ee8657c [diff] |
lib/prog_loaders, soc/amd/: Make payload_preload use cbfs_preload Now that CBFS has this functionality built in, we no longer need to manually code it. payload_preload used to use the payload_preload_cache region to store the raw payload contents. This region was placed outside the firmware reserved region, so it was available for use by the OS. This was possible because the payload isn't loaded again on S3 resume. cbfs_preload only uses the cbfs_cache region. This region must be reserved because it gets used on the S3 resume path. Unfortunately this means that cbfs_cache must be increased to hold the payload. Cezanne is the only platform currently using payload_preload, and the size of cbfs_cache has already been adjusted. In the future we could look into adding an option to cbfs_preload that would allow it to use a different memory pool for the cache allocation. BUG=b:179699789 TEST=Boot guybrush and verify preloading the payload was successful CBFS DEBUG: get_preload_rdev(name='fallback/payload') preload successful Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Idc521b238620ff52b8ba481cd3c10e5c4f1394bd Reviewed-on: https://review.coreboot.org/c/coreboot/+/58962 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
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.
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.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you're feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
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.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
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.