[PATCH v9 2/2] tpm: Add support for event log pointer found in TPM2 ACPI table

[Jerry Snitselaar]

Jarkko Sakkinen @ 2020-07-06 16:09 MST:

> On Mon, Jul 06, 2020 at 02:19:53PM -0400, Stefan Berger wrote:
>> From: Stefan Berger <stefanb at linux.ibm.com>
>> 
>> In case a TPM2 is attached, search for a TPM2 ACPI table when trying
>> to get the event log from ACPI. If one is found, use it to get the
>> start and length of the log area. This allows non-UEFI systems, such
>> as SeaBIOS, to pass an event log when using a TPM2.
>> 
>> Signed-off-by: Stefan Berger <stefanb at linux.ibm.com>
>
> Do you think that QEMU with TPM 1.2 emulator turned on would be a viable
> way to test this?
>
> I'm anyway more worried about breaking existing TPM 1.2 functionality
> and that requires only QEMU without extras.
>
> /Jarkko

The 1.2 bits should be functionally the same as before, right?