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From: Matthew Garrett <mjg59@google.com>
To: Paul Menzel <pmenzel@molgen.mpg.de>
Cc: linux-integrity <linux-integrity@vger.kernel.org>,
	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH] tpm: Don't make log failures fatal
Date: Thu, 2 Jan 2020 14:11:21 -0800	[thread overview]
Message-ID: <CACdnJusAW=R0XgaZwfY2G_5cJzoq94RYiyzj09jLEbZqWRbjzg@mail.gmail.com> (raw)
In-Reply-To: <3a472005-83a7-9787-0bfc-35673702be09@molgen.mpg.de>

On Tue, Dec 17, 2019 at 4:15 AM Paul Menzel <pmenzel@molgen.mpg.de> wrote:
> Am 13.12.19 um 23:57 schrieb Matthew Garrett:
> > If a TPM is in disabled state, it's reasonable for it to have an empty
> > log. Bailing out of probe in this case means that the PPI interface
> > isn't available, so there's no way to then enable the TPM from the OS.
> > In general it seems reasonable to ignore log errors - they shouldn't
> > itnerfere with any other TPM functionality.
>
> interfere
>
> Can this be tested with QEMU somehow?

I think you could hack ovmf to disable the event log, but I can't
think of a trivial test otherwise.

      reply	other threads:[~2020-01-02 23:01 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-13 22:57 [PATCH] tpm: Don't make log failures fatal Matthew Garrett
2019-12-17 10:54 ` Jarkko Sakkinen
2019-12-17 12:15 ` Paul Menzel
2020-01-02 22:11   ` Matthew Garrett [this message]

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