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Date:   Mon, 06 Jul 2020 16:57:28 -0700
From:   Jerry Snitselaar <jsnitsel@...hat.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
Cc:     Stefan Berger <stefanb@...ux.vnet.ibm.com>,
        linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-acpi@...r.kernel.org, linux-security-module@...r.kernel.org,
        Stefan Berger <stefanb@...ux.ibm.com>
Subject: Re: [PATCH v9 2/2] tpm: Add support for event log pointer found in TPM2 ACPI table


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@...ux.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@...ux.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?

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