tree e4ac12bfbf0f6677d3bb96fad3983f3d334be3a5
parent 16cacfa043c6153843873467ad4fc510b9fbcf44
author Vadim Bendebury <vbendeb@chromium.org> 1478230666 -0700
committer Hung-Te Lin <hungte@chromium.org> 1480054779 +0000

update chromeos-tpm-recovery to work for both TPM 1.x and 2.x

This script runs when the target is booted in recovery mode. It
reinitializes the TPM and sets the predefined NVRAM spaces to the
default values.

The precence of the /etc/init/trunksd.init file is used to derermine
if the target is runnig TPM 1.x or 2.x.

The major difference between TPM 1.2 and TPM 2.0 modes is that the TPM
2.0 supporting routines do not yet allow to define NVRAM spaces. This
capability will be added later.

BRANCH=none
BUG=chrome-os-partner:59361, chrome-os-partner:55210
TEST=verified that running chromeos-TPM-recovery on a device booted in
     recovery mode properly reinitializes TPM on both reef (TPM2.0)
     and kevin (TPM1.2). The previously failing on reef autotest
     firmware_UpdateFirmwareDataKeyVersion is now passing.

Change-Id: I58e4ceeb1ba27544b7ebfb045d2d2fc5477ecf43
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/407796
Reviewed-by: Andrey Pronin <apronin@chromium.org>
(cherry picked from commit dcbd8103376589dac48f896f3654a93b6943584c)
Reviewed-on: https://chromium-review.googlesource.com/414789
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Queue: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Trybot-Ready: Hung-Te Lin <hungte@chromium.org>