]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
tpm: TPM 2.0 baseline support
authorJarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Fri, 12 Dec 2014 19:46:38 +0000 (11:46 -0800)
committerPeter Huewe <peterhuewe@gmx.de>
Sat, 17 Jan 2015 13:00:11 +0000 (14:00 +0100)
commit7a1d7e6dd76a2070e2d86826391468edc33bb6d6
tree11faf31b48a14e1b6d07c0494458ccd5d1f79994
parent313d21eeab9282e01fdcecd40e9ca87e0953627f
tpm: TPM 2.0 baseline support

TPM 2.0 devices are separated by adding a field 'flags' to struct
tpm_chip and defining a flag TPM_CHIP_FLAG_TPM2 for tagging them.

This patch adds the following internal functions:

- tpm2_get_random()
- tpm2_get_tpm_pt()
- tpm2_pcr_extend()
- tpm2_pcr_read()
- tpm2_startup()

Additionally, the following exported functions are implemented for
implementing TPM 2.0 device drivers:

- tpm2_do_selftest()
- tpm2_calc_ordinal_durations()
- tpm2_gen_interrupt()

The existing functions that are exported for the use for existing
subsystems have been changed to check the flags field in struct
tpm_chip and use appropriate TPM 2.0 counterpart if
TPM_CHIP_FLAG_TPM2 is est.

The code for tpm2_calc_ordinal_duration() and tpm2_startup() were
originally written by Will Arthur.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Will Arthur <will.c.arthur@intel.com>
Reviewed-by: Jasob Gunthorpe <jason.gunthorpe@obsidianresearch.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Tested-by: Peter Huewe <peterhuewe@gmx.de>
[phuewe: Fixed copy paste error * 2]
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
drivers/char/tpm/Makefile
drivers/char/tpm/tpm-chip.c
drivers/char/tpm/tpm-interface.c
drivers/char/tpm/tpm.h
drivers/char/tpm/tpm2-cmd.c [new file with mode: 0644]