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efi/libstub: arm64: Remap relocated image with strict permissions

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After relocating the executable image, use the EFI memory attributes
protocol to remap the code and data regions with the appropriate
permissions.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2023-03-10 12:55:41 +01:00
parent c7d9e628b8
commit 3c60f67b4b
1 changed files with 1 additions and 0 deletions
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drivers/firmware/efi/libstub/arm64-stub.c
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@ -139,6 +139,7 @@ efi_status_t handle_kernel_image(unsigned long *image_addr,
*image_addr = *reserve_addr;
memcpy((void *)*image_addr, _text, kernel_size);
caches_clean_inval_pou(*image_addr, *image_addr + kernel_codesize);
efi_remap_image(*image_addr, *reserve_size, kernel_codesize);
return EFI_SUCCESS;
}