From: "Jarkko Sakkinen" <jarkko@kernel.org>
To: "Grundik" <ggrundik@gmail.com>,
"Thorsten Leemhuis" <regressions@leemhuis.info>,
"Lino Sanfilippo" <LinoSanfilippo@gmx.de>
Cc: "Linux kernel regressions list" <regressions@lists.linux.dev>,
"Peter Huewe" <peterhuewe@gmx.de>,
"Christian Hesse" <mail@eworm.de>, <stable@vger.kernel.org>,
<roubro1991@gmail.com>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Christian Hesse" <list@eworm.de>,
<linux-integrity@vger.kernel.org>
Subject: Re: [PATCH v2 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen
Date: Mon, 14 Aug 2023 20:33:27 +0300 [thread overview]
Message-ID: <CUSG4ZTYMMD3.30DE3M55W3CJ1@suppilovahvero> (raw)
In-Reply-To: <2c5abdca1e93894ff3ee41ab1da90a5f8e38657f.camel@gmail.com>
On Sat Aug 12, 2023 at 2:28 PM EEST, Grundik wrote:
> On Fri, 2023-08-11 at 23:01 +0300, Jarkko Sakkinen wrote:
> >
> >
> > Thanks for sharing your opinion. I'll take the necessary steps.
> >
>
> I was thinking... Maybe I'm wrong, maybe I mistaking, but isnt this TPM
> located inside of the CPU chip? So that issue is not specific to laptop
> vendor or model, but its CPU-specific.
Nope, tpm_tis is MMIO interface for so called FIFO register interface,
it could be backed e.g. by SPI [*]. It is a physical layer for MMIO.
There's other backends too such as tpm_tis_i2c where kernel is directly
exposed to the physical layer.
> My MSI A12MT laptop has i5-1240P, Framework laptops mentioned in this
> thread, also has i5-1240P CPU. Unfortunately there are no such
> information about other affected models, but could it be just that CPU
> line?
[*] https://lkml.org/lkml/2023/8/14/1065
BR, Jarkko
next prev parent reply other threads:[~2023-08-14 17:34 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <c0ee4b7c-9d63-0bb3-c677-2be045deda43@leemhuis.info>
2023-07-10 13:38 ` [PATCH 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen Christian Hesse
2023-07-10 13:38 ` [PATCH 2/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 13th gen Christian Hesse
2023-07-10 13:56 ` [PATCH 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen Linux regression tracking (Thorsten Leemhuis)
2023-07-10 14:10 ` Greg KH
2023-07-10 14:28 ` [PATCH v2 " Christian Hesse
2023-07-10 14:28 ` [PATCH v2 2/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 13th gen Christian Hesse
2023-07-10 16:52 ` [PATCH v2 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen Linux regression tracking (Thorsten Leemhuis)
2023-07-10 18:01 ` Jason Gunthorpe
2023-07-10 18:38 ` Jarkko Sakkinen
2023-07-11 14:18 ` James Bottomley
2023-07-12 17:00 ` Jerry Snitselaar
2023-07-10 21:13 ` Christian Hesse
2023-07-10 21:16 ` [PATCH v3 " Christian Hesse
2023-07-10 21:16 ` [PATCH v3 2/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 13th gen Christian Hesse
2023-07-10 21:29 ` [PATCH v2 1/2] tpm/tpm_tis: Disable interrupts for Framework Laptop Intel 12th gen Jarkko Sakkinen
2023-07-10 21:51 ` Jarkko Sakkinen
2023-07-12 6:48 ` Christian Hesse
2023-07-17 13:10 ` Jarkko Sakkinen
2023-07-11 12:41 ` Grundik
2023-07-11 13:00 ` Linux regression tracking (Thorsten Leemhuis)
2023-07-11 21:50 ` Jarkko Sakkinen
2023-07-13 15:33 ` Lino Sanfilippo
2023-08-06 16:30 ` Grundik
2023-08-11 8:18 ` Thorsten Leemhuis
2023-08-11 10:44 ` Grundik
2023-08-11 17:46 ` Jarkko Sakkinen
2023-08-11 17:22 ` Jarkko Sakkinen
2023-08-11 17:40 ` Jarkko Sakkinen
2023-08-11 18:47 ` Grundik
2023-08-11 20:01 ` Jarkko Sakkinen
2023-08-12 11:28 ` Grundik
2023-08-14 17:33 ` Jarkko Sakkinen [this message]
2023-08-11 18:55 ` Linus Torvalds
2023-08-11 19:28 ` Jarkko Sakkinen
2023-07-10 16:29 ` [PATCH " Jarkko Sakkinen
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