[PATCH 10/12] doc: arm64: document FF-A runtime path for EFI variables

Abdellatif El Khlifi abdellatif.elkhlifi at arm.com
Fri May 8 12:40:55 CEST 2026


Hi Harsimran,

> Document how EFI runtime variables use FF-A MM communication
> 
> Describe the FF-A runtime layer on arm64 and how EFI variable
> runtime services use the FF-A transport and shared MM buffer.
> Also clarify armffa command scope and link to the FF-A doc.
> 
> Signed-off-by: Harsimran Singh Tungal <harsimransingh.tungal at arm.com>
> ---
>  doc/arch/arm64.ffa.rst   | 92 +++++++++++++++++++++++++++++++++++++---
>  doc/usage/cmd/armffa.rst | 11 +++++
>  2 files changed, 96 insertions(+), 7 deletions(-)
> 

Acked-by: Abdellatif El Khlifi <abdellatif.elkhlifi at arm.com>

Regards,
Abdellatif


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