7c5dfea804
Microcode based security mitigation (E.G. MDS) requires that the microcode
gets loaded very early. This can be handled by one of:
- Concatenating (a subset of) the intel-microcode files and write to
kernel/x86/microcode/GenuineIntel.bin in the initrd. Requires that the
(first) initrd is external from the kernel and NOT compressed.
- Build (a subset of) the intel-microcode files into the kernel using the
CONFIG_EXTRA_FIRMWARE option.
Install the microcode files into images to support these use cases (E.G.
through a post-build script for the initrd, or by pointing
CONFIG_EXTRA_FIRMWARE_DIR to ${BR_BINARIES_DIR}, similar to how we include
the .cpio image inside the kernel).
Notice that there may be licensing concerns when embedded non-GPL firmware
in the kernel.
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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| arch | ||
| board | ||
| boot | ||
| configs | ||
| docs | ||
| fs | ||
| linux | ||
| package | ||
| support | ||
| system | ||
| toolchain | ||
| utils | ||
| .defconfig | ||
| .flake8 | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .gitlab-ci.yml.in | ||
| CHANGES | ||
| Config.in | ||
| Config.in.legacy | ||
| COPYING | ||
| DEVELOPERS | ||
| Makefile | ||
| Makefile.legacy | ||
| README | ||
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches