Re: [PATCH v2 0/6] introduce Arm FF-A support

Tom Rini
2022-04-15T15:43:35Z

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On Fri, Apr 15, 2022 at 01:27:57PM +0100, abdellatif.elkhlifi@arm.com wrote:

> From: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
>
> This patchset adds support for Arm FF-A (Arm Firmware Framework for Armv8-A v1.0).
>
> FF-A support is generic by design and can be used by any Arm platform.
>
> The features added are as follows:
>
> 1/ FF-A bus driver
> 2/ armffa command
> 3/ FF-A Sandbox driver
> 4/ FF-A Sandbox test cases
> 5/ FF-A MM communication
>
> The suggested design considers FF-A as a discoverable bus.
> The Secure World is considered as one entity to communicate with using the FF-A bus.
> FF-A communication is handled by one device and one instance (the bus).
> This FF-A driver takes care of all the interactions between Normal world
> and Secure World.
>
> The Secure World firmware runs under TrustZone HW (such as Optee). The same approach was followed in the
> FF-A driver in Linux kernel (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/firmware/arm_ffa/bus.c?h=v5.15#n211))
>
> Cc: Tom Rini <trini@konsulko.com>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
> Cc: Achin Gupta <achin.gupta@arm.com>
> Cc: Simon Glass <sjg@chromium.org>
> Cc: Vishnu Banavath <vishnu.banavath@arm.com>

I don't see a changelog compared with v1. Are any of the comments there
addressed? Thanks.

--
Tom

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