linux-kernel - Re: [PATCH v4 1/2] selftests: tpm2: Determine available PCR bank

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Date:   Thu, 23 Dec 2021 20:12:21 -0500
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     Jarkko Sakkinen <jarkko@...nel.org>,
        Stefan Berger <stefanb@...ux.vnet.ibm.com>
Cc:     linux-integrity@...r.kernel.org, peterhuewe@....de,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        skhan@...uxfoundation.org
Subject: Re: [PATCH v4 1/2] selftests: tpm2: Determine available PCR bank

Shuah,

   are you going to take this fix here - only 1/2 ?

https://lore.kernel.org/lkml/20211128041052.1395504-1-stefanb@linux.vnet.ibm.com/T/#m21209a978c237368499ce5f082f3c0fc03bcbbeb

   Stefan

On 11/29/21 18:39, Jarkko Sakkinen wrote:
> On Sat, Nov 27, 2021 at 11:10:51PM -0500, Stefan Berger wrote:
>> From: Stefan Berger <stefanb@...ux.ibm.com>
>>
>> Determine an available PCR bank to be used by a test case by querying the
>> capability TPM2_GET_CAP. The TPM2 returns TPML_PCR_SELECTIONS that
>> contains an array of TPMS_PCR_SELECTIONs indicating available PCR banks
>> and the bitmasks that show which PCRs are enabled in each bank. Collect
>> the data in a dictionary. From the dictionary determine the PCR bank that
>> has the PCRs enabled that the test needs. This avoids test failures with
>> TPM2's that either to not have a SHA-1 bank or whose SHA-1 bank is
>> disabled.
>>
>> Signed-off-by: Stefan Berger <stefanb@...ux.ibm.com>
> Acked-by: Jarkko Sakkinen <jarkko@...nel.org>
>
> /Jarkko