Replace Linux kernel BDS patch with linuxboot.efi BDS implementation#32
Merged
rminnich merged 26 commits intolinuxboot:masterfrom Jan 8, 2020
Merged
Replace Linux kernel BDS patch with linuxboot.efi BDS implementation#32rminnich merged 26 commits intolinuxboot:masterfrom
linuxboot.efi BDS implementation#32rminnich merged 26 commits intolinuxboot:masterfrom
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How relevant is dxe/README.md within this PR context ? |
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Hey guys. We just tested in on the real hardware and it actually works. Just though you may want to know :). Edit: by this I mean the linuxboot DXE. Kernel was attached separately with appropriate GUID. |
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ping @osresearch , any plan to merge this? |
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ping @rminnich @vejmarie @osresearch any plan to merge this? |
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This removes a large set of patches (currently in heads/patches/linux-4.9.80/0000-efi_bds.patch) and replaces this code with a DXE module that does the same thing. Keeping these patches updated to new kernel versions has slowed our ability to track kernel updates.
The advantage of doing this in the
linuxboot.efiDXE module is that we can boot a (relatively) unmodified Linux kernel, we add flexibility to finding the initrd in the ROM, we can enable flash regions on systems that have additoinal free space, and we provide a way to pass arguments to the kernel from UEFI NVRAM variables.Merging this will require coordinating with the Heads tree since it will need to replace its patch and change all of the kernel configurations to use
CONFIG_EFI_STUB, but notCONFIG_EFI_STUB_BDS.This has been tested with
BOARD=qemu-linuxboot, but not on real hardware yet.