| # Copyright 2017 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import time |
| |
| from autotest_lib.client.common_lib import error, utils |
| from autotest_lib.client.common_lib.cros import tpm_utils |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_ClearTPMOwnerAndReset(FirmwareTest): |
| """ |
| Reboot the EC almost immediately after the tpm owner has been cleared. |
| Verify the device can handle this and that it does not boot into recovery. |
| """ |
| TIMEOUT=60 |
| |
| |
| def run_once(self, host): |
| """Clear the tpm owner, reboot the EC, and check the device boots""" |
| tpm_utils.ClearTPMOwnerRequest(host) |
| |
| logging.info(tpm_utils.TPMStatus(host)) |
| host.reset_via_servo() |
| |
| end_time = time.time() + self.TIMEOUT |
| while utils.ping(host.ip, deadline=5, tries=1): |
| if time.time() > end_time: |
| self.ec.reboot() |
| raise error.TestFail('DUT failed to boot') |
| logging.info('DUT is still down (no response to ping)') |
| |
| logging.info('DUT is up') |
| |
| self.check_state((self.checkers.crossystem_checker, |
| {'mainfw_type': 'normal'})) |
| if not self.faft_client.system.dev_tpm_present(): |
| raise error.TestError('/dev/tpm0 does not exist on the client') |