faft: Support the checker of flags from VbSharedData
The flags contains information of the current boot status, like using
RO normal boot or not. This checker is useful to check these flags.
BUG=chromium-os:34147
TEST=After merging later RO normal check CLs, run:
$ run_remote_test.sh --remote=$IP RONormalBoot/control$
Change-Id: I48b05b8f9fa70831d8042c3923e47b8dc552fbba
Reviewed-on: https://gerrit.chromium.org/gerrit/32202
Reviewed-by: Mike Truty <truty@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
diff --git a/server/cros/faftsequence.py b/server/cros/faftsequence.py
index beeefe8..f77746d 100644
--- a/server/cros/faftsequence.py
+++ b/server/cros/faftsequence.py
@@ -205,6 +205,21 @@
GBB_FLAG_DISABLE_FW_ROLLBACK_CHECK = 0x00000020
GBB_FLAG_ENTER_TRIGGERS_TONORM = 0x00000040
+ # VbSharedData flags
+ # Copied from vboot_reference/firmware/include/vboot_struct.h
+ VDAT_FLAG_FWB_TRIED = 0x00000001
+ VDAT_FLAG_KERNEL_KEY_VERIFIED = 0x00000002
+ VDAT_FLAG_LF_DEV_SWITCH_ON = 0x00000004
+ VDAT_FLAG_LF_USE_RO_NORMAL = 0x00000008
+ VDAT_FLAG_BOOT_DEV_SWITCH_ON = 0x00000010
+ VDAT_FLAG_BOOT_REC_SWITCH_ON = 0x00000020
+ VDAT_FLAG_BOOT_FIRMWARE_WP_ENABLED = 0x00000040
+ VDAT_FLAG_BOOT_S3_RESUME = 0x00000100
+ VDAT_FLAG_BOOT_RO_NORMAL_SUPPORT = 0x00000200
+ VDAT_FLAG_HONOR_VIRT_DEV_SWITCH = 0x00000400
+ VDAT_FLAG_EC_SOFTWARE_SYNC = 0x00000800
+ VDAT_FLAG_EC_SLOW_UPDATE = 0x00001000
+
_faft_template = {}
_faft_sequence = ()
@@ -611,6 +626,29 @@
return True
+ def vdat_flags_checker(self, mask, value):
+ """Check the flags from VbSharedData matched.
+
+ This function checks the masked flags from VbSharedData using crossystem
+ are matched the given value.
+
+ Args:
+ mask: A bitmask of flags to be matched.
+ value: An expected value.
+
+ Returns:
+ True if the flags matched; otherwise, False.
+ """
+ lines = self.faft_client.run_shell_command_get_output(
+ 'crossystem vdat_flags')
+ vdat_flags = int(lines[0], 16)
+ if vdat_flags & mask != value:
+ logging.info("Expected vdat_flags 0x%x mask 0x%x but got 0x%x" %
+ (value, mask, vdat_flags))
+ return False
+ return True
+
+
def root_part_checker(self, expected_part):
"""Check the partition number of the root device matched.