From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: "David R. Bild" <david.bild@xaptum.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Peter Huewe <peterhuewe@gmx.de>,
linux-usb@vger.kernel.org, linux-integrity@vger.kernel.org
Subject: Re: [PATCH v3 2/2] usb: misc: xapea00x: perform platform initialization of TPM
Date: Tue, 8 May 2018 13:47:36 +0300 [thread overview]
Message-ID: <20180508104736.GA6132@linux.intel.com> (raw)
In-Reply-To: <20180504130022.5231-3-david.bild@xaptum.com>
On Fri, May 04, 2018 at 08:00:22AM -0500, David R. Bild wrote:
> Normally the system platform (i.e., BIOS/UEFI for x86) is responsible
> for performing initialization of the TPM. For these modules, the host
> kernel is the platform, so we perform the initialization in the driver
> before registering the TPM with the kernel TPM subsystem.
>
> The initialization consists of issuing the TPM startup command,
> running the TPM self-test, and setting the TPM platform hierarchy
> authorization to a random, unsaved value so that it can never be used
> after the driver has loaded.
>
> Signed-off-by: David R. Bild <david.bild@xaptum.com>
Have you checked what the TPM driver already does?
/Jarkko
next prev parent reply other threads:[~2018-05-08 10:47 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20180430125418.31344-1-david.bild@xaptum.com>
2018-05-04 13:00 ` [PATCH v3 0/2] Add driver for Xaptum ENF Access card (XAP-EA-00x) David R. Bild
2018-05-04 13:00 ` [PATCH v3 1/2] usb: misc: xapea00x: add driver for Xaptum ENF Access Card David R. Bild
2018-05-07 9:58 ` Oliver Neukum
2018-05-07 13:31 ` David R. Bild
2018-05-08 9:09 ` Oliver Neukum
2018-05-04 13:00 ` [PATCH v3 2/2] usb: misc: xapea00x: perform platform initialization of TPM David R. Bild
2018-05-04 19:06 ` Jason Gunthorpe
2018-05-04 19:56 ` David R. Bild
2018-05-04 20:19 ` David R. Bild
2018-05-06 15:02 ` Jason Gunthorpe
2018-05-10 1:42 ` Jarkko Sakkinen
2018-05-08 10:55 ` Jarkko Sakkinen
2018-05-08 15:25 ` James Bottomley
2018-05-08 15:29 ` David R. Bild
2018-05-08 15:36 ` James Bottomley
2018-05-10 1:59 ` Jarkko Sakkinen
2018-05-10 14:31 ` David R. Bild
2018-05-13 8:51 ` Jarkko Sakkinen
2018-05-25 20:31 ` Ken Goldman
2018-05-10 14:25 ` David R. Bild
2018-05-10 14:47 ` James Bottomley
2018-05-10 15:17 ` David R. Bild
2018-05-25 20:23 ` Ken Goldman
2018-05-10 1:44 ` Jarkko Sakkinen
2018-05-10 14:29 ` David R. Bild
2018-05-10 1:42 ` Jarkko Sakkinen
2018-05-10 14:41 ` David R. Bild
2018-05-13 8:46 ` Jarkko Sakkinen
2018-05-14 19:31 ` Jason Gunthorpe
2018-05-14 19:59 ` David R. Bild
2018-05-14 20:08 ` Jason Gunthorpe
2018-05-14 20:12 ` David R. Bild
2018-05-07 14:12 ` EXTERNAL: " Jeremy Boone
2018-05-08 10:47 ` Jarkko Sakkinen [this message]
2018-05-10 14:09 ` David R. Bild
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