commit | 338d668b6f0cd3ec893a23a0ef084b419dbf7040 | [log] [tgz] |
---|---|---|
author | Furquan Shaikh <furquan@google.com> | Wed Mar 03 09:45:50 2021 -0800 |
committer | Furquan Shaikh <furquan@google.com> | Fri Mar 05 03:53:16 2021 +0000 |
tree | dedbe5aff5615b86802cf14631e6bf7ff355ff82 | |
parent | 4a88b03a6c8297fd0a654de1f4aa46d46976e0f3 [diff] |
soc/intel/tigerlake: Fix NULL being passed for response buffer `pmc_send_ipc_cmd()` expects the caller to pass in a pointer to a valid request and response buffer. However, early_tcss driver was passing in a NULL pointer for response buffer which would result in invalid access by `pmc_send_ipc_cmd()`. Currently, the response buffer is not used in `update_tcss_mux()`. So, this change drops the passing of `rbuf` parameter to `send_pmc*` helpers and instead uses a local `rsp` variable in the respective functions. All the PMC functions used in early_tcss driver return some kind of response. These should be checked to return appropriate response code back to the caller. However, this needs to be done as a separate change. Change-Id: I215af85feed60b6beee17f28e3d65daa9ad4ae69 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51232 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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.