linux-kernel - Re: [PATCH v3] tpm: Add support for event log pointer found in TPM2 ACPI table

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Message-ID: <06477336-7ca0-1c72-6881-e443e922a01b@linux.ibm.com>
Date:   Wed, 1 Apr 2020 08:20:28 -0400
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        Stefan Berger <stefanb@...ux.vnet.ibm.com>
Cc:     linux-integrity@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org
Subject: Re: [PATCH v3] tpm: Add support for event log pointer found in TPM2
 ACPI table

On 4/1/20 4:49 AM, Jarkko Sakkinen wrote:
> On Tue, Mar 31, 2020 at 05:51:00PM -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>
> Check the kbuild bot complain. I think otherwise this is sustainable.
> Thank you.
The kbuild bot did this due to the split of the patch series...
>
> Does stock QEMU have all the support to test this?


Yes. You need SeaBIOS.


    Stefan


>
> /Jarkko