| # 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. |
| |
| from autotest_lib.server.cros.faftsequence import FAFTSequence |
| |
| |
| class firmware_CorruptKernelB(FAFTSequence): |
| """ |
| Servo based kernel B corruption test. |
| |
| This test sets kernel B boot and then corrupts kernel B. The firmware |
| verifies kernel B failed so falls back to kernel A boot. This test will |
| fail if kernel verification mis-behaved. |
| """ |
| version = 1 |
| |
| |
| def setup(self, dev_mode=False): |
| super(firmware_CorruptKernelB, self).setup() |
| self.setup_dev_mode(dev_mode) |
| self.setup_usbkey(usbkey=False) |
| self.setup_kernel('a') |
| |
| |
| def cleanup(self): |
| self.ensure_kernel_boot('a') |
| super(firmware_CorruptKernelB, self).cleanup() |
| |
| |
| def run_once(self): |
| self.register_faft_sequence(( |
| { # Step 1, prioritize kernel B |
| 'state_checker': (self.checkers.root_part_checker, 'a'), |
| 'userspace_action': (self.reset_and_prioritize_kernel, 'b'), |
| 'reboot_action': self.full_power_off_and_on, |
| }, |
| { # Step 2, expected kernel B boot and corrupt kernel B |
| 'state_checker': (self.checkers.root_part_checker, 'b'), |
| 'userspace_action': (self.faft_client.kernel.corrupt_sig, 'b'), |
| }, |
| { # Step 3, expected kernel A boot and restore kernel B |
| 'state_checker': (self.checkers.root_part_checker, 'a'), |
| 'userspace_action': (self.faft_client.kernel.restore_sig, 'b'), |
| }, |
| { # Step 4, expected kernel B boot and prioritize kerenl A |
| 'state_checker': (self.checkers.root_part_checker, 'b'), |
| 'userspace_action': (self.reset_and_prioritize_kernel, 'a'), |
| 'reboot_action': self.full_power_off_and_on, |
| }, |
| { # Step 5, expected kernel A boot |
| 'state_checker': (self.checkers.root_part_checker, 'a'), |
| }, |
| )) |
| self.run_faft_sequence() |
