From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: "Michael Niewöhner" <linux@mniewoehner.de>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>,
peterhuewe@gmx.de, jgg@ziepe.ca, arnd@arndb.de,
linux-integrity@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [BUG] Nuvoton NCPT650 TPM 2.0 mode not working
Date: Tue, 13 Nov 2018 12:50:45 +0200 [thread overview]
Message-ID: <20181113105045.GC10434@linux.intel.com> (raw)
In-Reply-To: <660b0934bc16c8d195a2724f8be4ba8dfbe71134.camel@mniewoehner.de>
On Sun, Nov 11, 2018 at 10:11:33PM +0100, Michael Niewöhner wrote:
> Very strange... When I pull the power cord, then replug and boot, I get these
> dmesg messages:
> [ 0.000000] efi: ACPI
> 2.0=0x9ea78000 ACPI=0x9ea78000 SMBIOS=0x9f5e5000 SMBIOS
> 3.0=0x9f5e4000 MPS=0xfca00 ESRT=0x9c06e918 MEMATTR=0x99cb9018 TPMEventLog=0x
> 98d0c018
> [ 0.001794] ACPI: TPM2 0x000000009EAB1F70 000034 (v03 LENOVO TC-
> S06 00001260 AMI 00000000)
> [ 3.096587] tpm_tis MSFT0101:00: 2.0 TPM (device-id 0xFE, rev-id 2)
> [ 3.105684] tpm tpm0: A TPM error (2314) occurred attempting the self test
>
> After a reboot I get those "ima: ..." message again. Pulling the plug seems to
> reset anything (the TPM).
>
> The PTT TPM 2.0 shows exactly the same behaviour.
The error in question is TPM_RC_TESTING i.e. TPM is still processing
selftests in the background.
It is clearly a regression but unfortanely it is harmless and unrelated
i.e. tpm2_do_selftest() should not print an error message because it
is legit behavior.
The function actually masks the whole error:
if (rc == TPM2_RC_TESTING)
rc = TPM2_RC_SUCCESS;
/Jarkko
next prev parent reply other threads:[~2018-11-13 10:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-11 17:55 [BUG] Nuvoton NCPT650 TPM 2.0 mode not working Michael Niewöhner
2018-11-11 18:24 ` James Bottomley
2018-11-11 18:50 ` Michael Niewöhner
2018-11-11 18:57 ` James Bottomley
2018-11-11 20:09 ` Michael Niewöhner
2018-11-11 20:29 ` James Bottomley
2018-11-11 20:34 ` Michael Niewöhner
2018-11-11 21:11 ` Michael Niewöhner
2018-11-11 21:42 ` Mimi Zohar
2018-11-14 20:46 ` Michael Niewöhner
2018-11-16 21:06 ` Michael Niewöhner
2018-11-18 8:18 ` Jarkko Sakkinen
2018-11-18 14:10 ` Michael Niewöhner
2018-11-19 13:49 ` Jarkko Sakkinen
2018-11-25 20:06 ` Michael Niewöhner
2018-11-26 19:15 ` Michael Niewöhner
2018-11-26 21:13 ` Jarkko Sakkinen
2018-11-13 10:50 ` Jarkko Sakkinen [this message]
2019-01-11 15:40 ` Mimi Zohar
2019-01-12 9:52 ` Michael Niewöhner
2019-01-12 10:49 ` Michael Niewöhner
2018-11-11 18:33 ` Mimi Zohar
2018-11-11 18:51 ` Michael Niewöhner
2018-11-13 10:28 ` Jarkko Sakkinen
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