| # 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_CorruptFwSigA(FirmwareTest): |
| """ |
| Servo based firmware signature A corruption test. |
| """ |
| version = 1 |
| |
| def initialize(self, host, cmdline_args, dev_mode=False): |
| super(firmware_CorruptFwSigA, 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_CorruptFwSigA, self).cleanup() |
| |
| def run_once(self): |
| logging.info("Corrupt firmware signature A.") |
| self.check_state((self.checkers.fw_tries_checker, 'A')) |
| self.faft_client.bios.corrupt_sig('a') |
| self.reboot_warm() |
| |
| logging.info("Expected firmware B boot and set fwb_tries flag.") |
| self.check_state((self.checkers.fw_tries_checker, ('B', False))) |
| |
| self.try_fwb() |
| self.reboot_warm() |
| |
| logging.info("Still expected firmware B boot and restore firmware A.") |
| self.check_state((self.checkers.fw_tries_checker, 'B')) |
| self.faft_client.bios.restore_sig('a') |
| self.reboot_warm() |
| |
| expected_slot = 'B' if self.fw_vboot2 else 'A' |
| logging.info("Expected firmware " + expected_slot + " boot, done.") |
| self.check_state((self.checkers.fw_tries_checker, expected_slot)) |
