linux-kernel - Re: [PATCH v2 3/3] Documentation: riscv: Update boot image header since EFI stub is supported

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Date:   Thu, 22 Jun 2023 07:39:40 -0700 (PDT)
From:   Palmer Dabbelt <palmer@...belt.com>
To:     alexghiti@...osinc.com
CC:     corbet@....net, Paul Walmsley <paul.walmsley@...ive.com>,
        aou@...s.berkeley.edu, Conor Dooley <conor.dooley@...rochip.com>,
        sunilvl@...tanamicro.com, songshuaishuai@...ylab.org,
        linux-doc@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, alexghiti@...osinc.com,
        Atish Patra <atishp@...osinc.com>
Subject:     Re: [PATCH v2 3/3] Documentation: riscv: Update boot image header since EFI stub is supported

On Wed, 21 Jun 2023 00:22:34 PDT (-0700), alexghiti@...osinc.com wrote:
> 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 <alexghiti@...osinc.com>
> Reviewed-by: Atish Patra <atishp@...osinc.com>
> ---
>  Documentation/riscv/boot-image-header.rst | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/Documentation/riscv/boot-image-header.rst b/Documentation/riscv/boot-image-header.rst
> index a4a45310c4c4..df2ffc173e80 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

Reviewed-by: Palmer Dabbelt <palmer@...osinc.com>
Acked-by: Palmer Dabbelt <palmer@...osinc.com>

In case someone wants to pick this up along with the others.