efi: zboot: Use EFI protocol to remap code/data with the right attributes

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Use the recently introduced EFI_MEMORY_ATTRIBUTES_PROTOCOL in the zboot
implementation to set the right attributes for the code and data
sections of the decompressed image, i.e., EFI_MEMORY_RO for code and
EFI_MEMORY_XP for data.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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This commit is contained in:

Ard Biesheuvel 2023-01-30 13:11:53 +01:00

parent 79729f26b0

commit ace013a543

3 changed files with 72 additions and 0 deletions

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67

drivers/firmware/efi/libstub/efi-stub-helper.c

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3

drivers/firmware/efi/libstub/efistub.h

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2

drivers/firmware/efi/libstub/zboot.c

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