Commit 180bb41d authored by Alexandre Ghiti's avatar Alexandre Ghiti Committed by Jonathan Corbet
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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: default avatarAlexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: default avatarAtish Patra <atishp@rivosinc.com>
Reviewed-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
Acked-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230817130734.10387-3-alexghiti@rivosinc.com
parent e79be4be

Documentation/riscv/boot-image-header.rst

+5 −5
Original line number Diff line number Diff line
@@ -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