| # Copyright (c) 2012 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 import vboot_constants as vboot |
| from autotest_lib.server.cros.faft.firmware_test import FirmwareTest |
| |
| |
| class firmware_RONormalBoot(FirmwareTest): |
| """ |
| Servo based firmware RO normal boot test. |
| |
| This test only runs on the firmware on which its firmware preamble flags |
| have USE_RO_NORMAL enabled. Since we always build and pack a workable |
| RW firmware in the RW firmware body section, although it is not used when |
| the USE_RO_NORMAL flag is enabled. |
| |
| On runtime, the test disables the RO normal boot flag in the current |
| firmware and checks its next boot result. |
| """ |
| version = 1 |
| |
| def initialize(self, host, cmdline_args, dev_mode=False, ec_wp=None): |
| super(firmware_RONormalBoot, self).initialize(host, cmdline_args, |
| ec_wp=ec_wp) |
| self.backup_firmware() |
| self.switcher.setup_mode('dev' if dev_mode else 'normal') |
| self.setup_usbkey(usbkey=False) |
| |
| def cleanup(self): |
| self.restore_firmware() |
| super(firmware_RONormalBoot, self).cleanup() |
| |
| def run_once(self): |
| flags = self.faft_client.bios.get_preamble_flags('a') |
| if flags & vboot.PREAMBLE_USE_RO_NORMAL == 0: |
| logging.info('The firmware USE_RO_NORMAL flag is disabled.') |
| return |
| |
| logging.info("Disable the RO normal boot flag.") |
| self.check_state((self.checkers.ro_normal_checker, 'A')) |
| self.faft_client.bios.set_preamble_flags(('a', |
| flags ^ vboot.PREAMBLE_USE_RO_NORMAL)) |
| self.switcher.mode_aware_reboot() |
| |
| logging.info("Expected TwoStop boot, restore the original flags.") |
| self.check_state((lambda: self.checkers.ro_normal_checker('A', |
| twostop=True))) |
| self.faft_client.bios.set_preamble_flags('a', flags) |
| self.switcher.mode_aware_reboot() |
| self.check_state((self.checkers.ro_normal_checker, 'A')) |
