Re: [PATCH v3 2/2] usb: misc: xapea00x: perform platform initialization of TPM

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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.

The tpm driver already does most of this stuff automatically, why
duplicate it there and why is it coded in a way that doesn't use the
existing TPM services to do it?

Make no sense to me.

Jason
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux