[PATCH v2 5/5] doc: efi: add efi armv8 documentaion.

Ahmad Fatoum a.fatoum at pengutronix.de
Fri Dec 12 06:06:38 PST 2025



On 12/12/25 6:08 AM, chalianis1 at gmail.com wrote:
> From: Chali Anis <chalianis1 at gmail.com>
> 
> Signed-off-by: Chali Anis <chalianis1 at gmail.com>

Reviewed-by: Ahmad Fatoum <a.fatoum at pengutronix.de>

Just a comment below:

> -name it ``BOOTx64.EFI`` on 64bit architectures and ``BOOTIA32.EFI`` on 32bit
> -architectures. Switching to USB boot in the BIOS should then be enough to
> +name it, for x86 ``BOOTx64.EFI`` or ``BOOTIA32.EFI`` on 64bit or 32bit 
> +architectures recpectivly, for armv8 ``BOOTAA64.EFI``. 

Maybe mention CONFIG_EFI_PAYLOAD_DEFAULT_PATH, which will have the name
depending on architecture?

> +Switching to USB boot in the BIOS should then be enough to
>  start barebox via USB. Some BIOSes allow to specify a path to a binary to
>  be executed, others have a "start UEFI shell" entry which executes
>  EFI/Shellx64.efi on the :term:`ESP`. This can be a barebox binary as well.
> @@ -87,9 +96,13 @@ necessary to make a copy first.
>  To start it create a USB memory stick like above and execute:
>  
>  .. code-block:: sh
> -
> +  
> +  # On x86
>    qemu-system-x86_64 -pflash OVMF.fd -nographic /dev/sdx
>  
> +  # On armv8
> +  qemu-system-aarch64 -L /usr/share/qemu-efi-aarch64 -bios QEMU_EFI.fd -nographic /dev/sdx
> +
>  A plain VFAT image will work aswell, but in this case the UEFI BIOS won't
>  recognize it as ESP and ``/boot`` won't be mounted.
>  
> 
> 

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