Re: [PATCH 1/4] tpm_crb: implement driver compliant to CRB over FF-A

Jarkko Sakkinen
2025-02-11T21:08:54Z

On Mon, Feb 10, 2025 at 05:22:24PM -0600, Stuart Yoder wrote:
> The Arm specification TPM Service CRB over FF-A specification
> defines the FF-A messages to interact with a CRB-based TPM
> implemented as an FF-A secure partition.
>
> Spec URL:
> https://developer.arm.com/documentation/den0138/latest/
>
> This driver is probed when a TPM Secure Partition is
> discovered by the FF-A subsystem. It exposes APIs
> used by the TPM CRB driver to send notifications to
> the TPM.
>
> Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
> ---
> drivers/char/tpm/Kconfig | 9 ++
> drivers/char/tpm/Makefile | 1 +
> drivers/char/tpm/ffa_crb.c | 310 +++++++++++++++++++++++++++++++++++++
> drivers/char/tpm/ffa_crb.h | 30 ++++

Let's use tpm_ prefix for these.

BR, Jarkko