From: Laurent Bigonville <bigon@debian.org>
To: Jarkko Sakkinen <jarkko@kernel.org>, linux-integrity@vger.kernel.org
Cc: Lukasz Majczak <lma@semihalf.com>,
Guenter Roeck <linux@roeck-us.net>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Stefan Berger <stefanb@linux.ibm.com>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Jerry Snitselaar <jsnitsel@redhat.com>
Subject: Re: [PATCH] tpm, tpm_tis: Acquire locality in tpm_tis_gen_interrupt() and tpm_get_timeouts()
Date: Tue, 16 Feb 2021 12:02:24 +0100 [thread overview]
Message-ID: <ccb8ff69-5223-c293-bdda-46f041b7b770@debian.org> (raw)
In-Reply-To: <20210216081750.191250-1-jarkko@kernel.org>
Le 16/02/21 à 09:17, Jarkko Sakkinen a écrit :
> From: Lukasz Majczak <lma@semihalf.com>
>
> This is shown with Samsung Chromebook Pro (Caroline) with TPM 1.2
> (SLB 9670):
>
> [ 4.324298] TPM returned invalid status
> [ 4.324806] WARNING: CPU: 2 PID: 1 at drivers/char/tpm/tpm_tis_core.c:275 tpm_tis_status+0x86/0x8f
>
> Background
> ==========
>
> TCG PC Client Platform TPM Profile (PTP) Specification, paragraph 6.1 FIFO
> Interface Locality Usage per Register, Table 39 Register Behavior Based on
> Locality Setting for FIFO - a read attempt to TPM_STS_x Registers returns
> 0xFF in case of lack of locality. The described situation manifests itself
> with the following warning trace:
>
> The fix
> =======
>
> Add the proper decorations to tpm_tis_gen_interrupt() and
> tpm_get_timeouts().
I tried that patch (alone on the top of the HEAD of Linus master) and I
still get the same trace in dmesg
next prev parent reply other threads:[~2021-02-16 11:06 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-16 8:17 [PATCH] tpm, tpm_tis: Acquire locality in tpm_tis_gen_interrupt() and tpm_get_timeouts() Jarkko Sakkinen
2021-02-16 8:26 ` Paul Menzel
2021-02-16 8:39 ` Jarkko Sakkinen
2021-02-16 8:50 ` Paul Menzel
2021-02-16 16:14 ` Jarkko Sakkinen
2021-02-16 11:02 ` Laurent Bigonville [this message]
[not found] ` <CAFJ_xbo2Tvfjjbt-xFAkEAdqVEg0ZhDnGJa2qkJOYURx47hE+Q@mail.gmail.com>
2021-02-16 11:21 ` Laurent Bigonville
2021-02-16 14:09 ` Lukasz Majczak
2021-02-16 16:18 ` Jarkko Sakkinen
2021-02-16 16:16 ` Jarkko Sakkinen
2021-02-16 16:26 ` Jarkko Sakkinen
2021-02-16 16:34 ` Jarkko Sakkinen
2021-02-16 19:06 ` Laurent Bigonville
2021-02-17 11:51 ` Lukasz Majczak
2021-02-17 22:29 ` Jarkko Sakkinen
2021-06-01 21:17 ` Laurent Bigonville
2021-06-03 5:28 ` Jarkko Sakkinen
2021-06-03 9:42 ` Laurent Bigonville
2021-06-09 12:43 ` Jarkko Sakkinen
2021-06-10 11:35 ` Laurent Bigonville
2021-06-10 12:29 ` Jarkko Sakkinen
2021-06-10 14:00 ` Laurent Bigonville
2021-06-14 20:40 ` Jarkko Sakkinen
2021-06-15 11:19 ` Laurent Bigonville
2021-06-15 12:56 ` Jarkko Sakkinen
2021-06-15 16:27 ` Laurent Bigonville
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