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.b...@xaptum.com>
Have you checked what the TPM driver already does?

/Jarkko
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