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efi/arm64: execute the kernel in place if possible

Ard Biesheuvel linux-arm-kernel linux-efi 1 version In review

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  1. v1 Latest2 patches 4 repliesIn review

Patches in v1 No applies recorded yet

#Subject and filesSizeRepliesApplied
1/2efi/libstub/arm64: avoid copying the kernel unnecessarilydrivers/firmware/efi/libstub/arm64-stub.c+9 -00 replies
2/2efi/arm64: increase the PE/COFF alignment so the kernel can run in placearch/arm64/kernel/efi-header.S arch/arm64/kernel/image-vars.h+8 -12 replies

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Cover letter [PATCH 0/2] efi/arm64: execute the kernel in place if possible

Update the relocation logic in the EFI stub for arm64 so it runs the kernel in place if it was loaded by firmware at an address which allows doing so. Then, update the PE/COFF header metadata and increase the section alignment to force the UEFI image loader to honour the minimal alignment requirement imposed by the kernel proper.

Ard Biesheuvel (2):
efi/libstub/arm64: avoid copying the kernel unnecessarily efi/arm64: increase the PE/COFF alignment so the kernel can run in
place

 arch/arm64/kernel/efi-header.S            | 2 +-
 arch/arm64/kernel/image-vars.h            | 7 +++++++
 drivers/firmware/efi/libstub/arm64-stub.c | 9 +++++++++
 3 files changed, 17 insertions(+), 1 deletion(-)
Signature · 1 line
2.17.1

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