Re: [PATCH v6 1/2] acpi: Extend TPM2 ACPI table with missing log fields

From: Jarkko Sakkinen
Date: Thu Jun 25 2020 - 17:26:54 EST


On Thu, Jun 25, 2020 at 08:42:21AM -0400, Stefan Berger wrote:
> From: Stefan Berger <stefanb@xxxxxxxxxxxxx>
>
> Recent extensions of the TPM2 ACPI table added 3 more fields
> including 12 bytes of start method specific parameters and Log Area
> Minimum Length (u32) and Log Area Start Address (u64). So, we define
> a new structure acpi_tpm2_phy that holds these optional new fields.
> The new fields allow non-UEFI systems to access the TPM2's log.
>
> The specification that has the new fields is the following:
> TCG ACPI Specification
> Family "1.2" and "2.0"
> Version 1.2, Revision 8
>
> https://trustedcomputinggroup.org/wp-content/uploads/TCG_ACPIGeneralSpecification_v1.20_r8.pdf
>
> Signed-off-by: Stefan Berger <stefanb@xxxxxxxxxxxxx>
> Cc: linux-acpi@xxxxxxxxxxxxxxx
> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
> Cc: Jiandi An <anjiandi@xxxxxxxxxxxxxx>

Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@xxxxxxxxxxxxxxx>

/Jarkko