| # Copyright (c) 2011 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 |
| |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_CorruptFwSigB(FirmwareTest): |
| """ |
| Servo based firmware signature B corruption test. |
| """ |
| version = 1 |
| |
| def initialize(self, host, cmdline_args, dev_mode=False): |
| super(firmware_CorruptFwSigB, self).initialize(host, cmdline_args) |
| self.backup_firmware() |
| self.setup_dev_mode(dev_mode) |
| self.setup_usbkey(usbkey=False) |
| |
| def cleanup(self): |
| self.restore_firmware() |
| super(firmware_CorruptFwSigB, self).cleanup() |
| |
| def run_once(self): |
| logging.info("Expected firmware A boot and corrupt " |
| "firmware signature B.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'tried_fwb': '0', |
| })) |
| self.faft_client.bios.corrupt_sig('b') |
| self.reboot_warm() |
| |
| logging.info("Expected firmware A boot and set try_fwb flag.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'tried_fwb': '0', |
| })) |
| if self.fw_vboot2: |
| self.faft_client.system.set_fw_try_next('B') |
| else: |
| self.faft_client.system.set_try_fw_b() |
| self.reboot_warm() |
| |
| logging.info("Expected firmware A boot and restore firmware B.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'tried_fwb': '0' if self.fw_vboot2 else '1', |
| })) |
| self.faft_client.bios.restore_sig('b') |
| self.reboot_warm() |
| |
| logging.info("Final check and done.") |
| self.check_state((self.checkers.crossystem_checker, { |
| 'mainfw_act': 'A', |
| 'tried_fwb': '0', |
| })) |
