Re: [PATCH v5] tpm: Parse event log from TPM2 ACPI table

From: Jarkko Sakkinen
Date: Sat Sep 07 2019 - 13:28:27 EST


On Tue, 2019-09-03 at 11:52 -0700, Jordan Hand wrote:
> For systems with a TPM2 chip which use ACPI to expose event logs,
> retrieve the crypto-agile event log from the TPM2 ACPI table. The TPM2
> table is defined in section 7.3 of the TCG ACPI Specification (see link).
>
> The TPM2 table is used by SeaBIOS in place of the TCPA table when the
> system's TPM is version 2.0 to denote (among other metadata) the location
> of the crypto-agile log.
>
> Link: https://trustedcomputinggroup.org/resource/tcg-acpi-specification/
> Signed-off-by: Jordan Hand <jorhand@xxxxxxxxxxxxxxxxxxx>

You should rather rename the existing function as
tpm_read_log_acpi_tcpa() and create a new one with the name
tpm_read_log_acpi_tpm2().

/Jarkko