From: Alexandre Ghiti Date: Thu, 17 Aug 2023 13:07:34 +0000 (+0200) Subject: Documentation: riscv: Update boot image header since EFI stub is supported X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=180bb41d61b7f14fff5a73d703531540ed71fba7;p=linux.git Documentation: riscv: Update boot image header since EFI stub is supported The EFI stub is supported on RISC-V so update the documentation that explains how the boot image header was reused to support it. Signed-off-by: Alexandre Ghiti Reviewed-by: Atish Patra Reviewed-by: Palmer Dabbelt Acked-by: Palmer Dabbelt Signed-off-by: Jonathan Corbet Link: https://lore.kernel.org/r/20230817130734.10387-3-alexghiti@rivosinc.com --- diff --git a/Documentation/riscv/boot-image-header.rst b/Documentation/riscv/boot-image-header.rst index a4a45310c4c47..df2ffc173e803 100644 --- a/Documentation/riscv/boot-image-header.rst +++ b/Documentation/riscv/boot-image-header.rst @@ -28,11 +28,11 @@ header in future. Notes ===== -- This header can also be reused to support EFI stub for RISC-V in future. EFI - specification needs PE/COFF image header in the beginning of the kernel image - in order to load it as an EFI application. In order to support EFI stub, - code0 should be replaced with "MZ" magic string and res3(at offset 0x3c) should - point to the rest of the PE/COFF header. +- This header is also reused to support EFI stub for RISC-V. EFI specification + needs PE/COFF image header in the beginning of the kernel image in order to + load it as an EFI application. In order to support EFI stub, code0 is replaced + with "MZ" magic string and res3(at offset 0x3c) points to the rest of the + PE/COFF header. - version field indicate header version number