[PATCH v3 02/10] arm-ffa: add FF-A bus runtime support

[Ilias Apalodimas]

Hi Harsimran,

On Sat, 27 Jun 2026 at 17:44, Harsimran Singh Tungal
<harsimransingh.tungal at arm.com> wrote:
>
> Add the FF-A runtime infrastructure needed after ExitBootServices() so
> EFI runtime services can continue to use the FF-A transport layer.
> Introduce drivers/firmware/arm-ffa/arm-ffa-runtime.c and
> include/arm_ffa_runtime.h with runtime-resident FF-A helpers for
> direct messaging, SMC invocation, and error translation. Add the
> sandbox runtime SMC wrapper, the ARM_FFA_RT_MODE Kconfig option, and
> the ExitBootServices hook that copies the required FF-A runtime data
> into resident storage before enabling the runtime context.
>
> Tag the runtime code and data with __efi_runtime and
> __efi_runtime_data so they remain available after
> ExitBootServices().
>
> Reviewed-by: Simon Glass <sjg at chromium.org>
> Signed-off-by: Harsimran Singh Tungal <harsimransingh.tungal at arm.com>

Having the FFA driver in  drivers/firmware/arm-ffa/ in fine. I am not
so sure about the parts that touch the efi_loader though. I would
prefer having this there. Is there a reason you are defined this in
the ffa driver?

[...]

Thanks
/Ilias