commit | 239272e43de7eab15031b8fd3727596d3a23ee82 | [log] [tgz] |
---|---|---|
author | Subrata Banik <subrata.banik@intel.com> | Wed Jul 29 11:01:26 2020 +0530 |
committer | Subrata Banik <subrata.banik@intel.com> | Wed Aug 05 07:27:38 2020 +0000 |
tree | 95a403c5a6882f7adfa62a39aa62ecd45f6578e3 | |
parent | e58c6f5dfa9cf626c3164364677bcbc6cf5506fc [diff] |
src/soc/intel/common: Make top_of_ram till TOLUD region mmio_resource Ideally don't need to mark the entire top_of_ram till TOLUD range (used for stolen memory like GFX and ME, PTT, DPR, PRMRR, TSEG etc) as cacheable for OS usage as coreboot already done with mpinit w/ smm relocation early. TEST=Able to build and boot ICL, TGL RVP. Without this CL : PCI: 00:00.0 resource base 77000000 size 4800000 align 0 gran 0 limit 0 flags f0004200 index 9 PCI: 00:00.0 resource base 7b800000 size 4400000 align 0 gran 0 limit 0 flags f0000200 index a With this CL : PCI: 00:00.0 resource base 77000000 size 8c00000 align 0 gran 0 limit 0 flags f0000200 index 9 No changes observed with MTRRs snapshot. Change-Id: I64c14b14caf0a53219fdc02ec6bbd375955a0c8e Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44014 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Maulik V Vaghela <maulik.v.vaghela@intel.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Aaron Durbin <adurbin@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.