linux-kernel - Re: [PATCH v4 3/5] ACPICA: add start method for Arm FF-A

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Message-ID: <3bb5c58bc83d49e01c2a3a849e831b00e635aaae.camel@iki.fi>
Date: Tue, 18 Feb 2025 17:53:18 +0200
From: Jarkko Sakkinen <jarkko.sakkinen@....fi>
To: Stuart Yoder <stuart.yoder@....com>, linux-integrity@...r.kernel.org, 
	jarkko@...nel.org, peterhuewe@....de, jgg@...pe.ca, sudeep.holla@....com, 
	rafael@...nel.org, lenb@...nel.org
Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 3/5] ACPICA: add start method for Arm FF-A

On Mon, 2025-02-17 at 16:49 -0600, Stuart Yoder wrote:
> Add TPM start method for Arm FF-A defined in the TCG ACPI
> specification v1.4.
> 
> Link: https://github.com/acpica/acpica/pull/1000
> Signed-off-by: Stuart Yoder <stuart.yoder@....com>
> ---
>  include/acpi/actbl3.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
> index 5cd755143b7d..a97b1dbab975 100644
> --- a/include/acpi/actbl3.h
> +++ b/include/acpi/actbl3.h
> @@ -466,6 +466,7 @@ struct acpi_tpm2_phy {
>  #define ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC       11	/* V1.2 Rev
> 8 */
>  #define ACPI_TPM2_RESERVED                          12
>  #define ACPI_TPM2_COMMAND_BUFFER_WITH_PLUTON        13
> +#define ACPI_TPM2_CRB_WITH_ARM_FFA                  15
>  
>  /* Optional trailer appears after any start_method subtables */
>  

Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>

BR, Jarkko