x86/boot/compressed: Move bootargs parsing out of 32-bit startup code

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commit 5c3a85f35b upstream.

Move the logic that chooses between the different EFI entrypoints out of
the 32-bit boot path, and into a 64-bit helper that can perform the same
task much more cleanly. While at it, document the mixed mode boot flow
in a code comment.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20221122161017.2426828-4-ardb@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Ard Biesheuvel 2022-11-22 17:10:03 +01:00 • committed by Greg Kroah-Hartman

parent 3bad8dc0ae

commit d8950e8e20

2 changed files with 47 additions and 20 deletions

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43

arch/x86/boot/compressed/efi_mixed.S

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24

arch/x86/boot/compressed/head_64.S

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