linux-kernel - Re: [PATCH v4 2/6] tpm, tpm_tis: Claim and release locality only once

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Message-ID: <YnudhZZGXf87U3bd@kernel.org>
Date:   Wed, 11 May 2022 14:27:01 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Lino Sanfilippo <LinoSanfilippo@....de>
Cc:     peterhuewe@....de, jgg@...pe.ca, stefanb@...ux.vnet.ibm.com,
        linux@...ewoehner.de, linux-integrity@...r.kernel.org,
        linux-kernel@...r.kernel.org, lukas@...ner.de,
        p.rosenberger@...bus.com, Lino Sanfilippo <l.sanfilippo@...bus.com>
Subject: Re: [PATCH v4 2/6] tpm, tpm_tis: Claim and release locality only once

On Mon, May 09, 2022 at 10:05:55AM +0200, Lino Sanfilippo wrote:
> From: Lino Sanfilippo <l.sanfilippo@...bus.com>
> 
> It is not necessary to claim and release the default locality for each TPM
> command. Instead claim the locality once at driver startup and release it
> at driver shutdown.
> 
> Signed-off-by: Lino Sanfilippo <l.sanfilippo@...bus.com>

We are doing what we're being because of Intel TXT:

https://lore.kernel.org/tpmdd-devel/20170315055738.11088-1-jarkko.sakkinen@iki.fi/

Unfortunately cannot accept this change.

BR, Jarkko