x86/boot: Omit compression buffer from PE/COFF image memory footprint

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Now that the EFI stub decompresses the kernel and hands over to the
decompressed image directly, there is no longer a need to provide a
decompression buffer as part of the .BSS allocation of the PE/COFF
image. It also means the PE/COFF image can be loaded anywhere in memory,
and setting the preferred image base is unnecessary. So drop the
handling of this from the header and from the build tool.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230912090051.4014114-22-ardb@google.com

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Ard Biesheuvel 2023-09-12 09:00:56 +00:00 • committed by Ingo Molnar

parent 768171d7eb

commit 8eace5b355

2 changed files with 8 additions and 48 deletions

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6

arch/x86/boot/header.S

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50

arch/x86/boot/tools/build.c

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