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5 Commits

Author SHA1 Message Date
Randall Spangler
782300d093 vboot2: Add previously tried slot and result to NV storage 
This gives recovery mode information on two boots back instead of one,
which may be handy for debugging.

It also allows determining whether a failure of the current boot
should try the other slot or go to recovery, using only information
stored in NV storage.

Added crossystem support for printing the fields, and unit tests.

BUG=chrome-os-partner:32585
BRANCH=none
TEST=make runtests; VBOOT2=1 make runtests

Change-Id: Ia9f4186210d30217b902db7c513ae4ab8851f8f4
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221230
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
 2014-10-04 00:59:48 +00:00
Randall Spangler
9e1da78448 Add nvstorage / crossystem support for new vboot2 fields 
This allows testing vboot2.  These fields are ignored by original
vboot firmware.

BUG=chromium:370082
BRANCH=none
TEST=manual
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=A

	crossystem fw_tried=B
	echo $? -> 1
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=A

	crossystem fw_try_next=B
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=B
	crossystem fw_try_next=beats_me
	echo $? -> 1
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=B
	crossystem fw_try_next=A
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=A

	crossystem fw_result=trying
	crossystem -> fw_tried=A, fw_result=trying, fw_try_next=A
	crossystem fw_result=bupkis
	echo $? -> 1
	crossystem -> fw_tried=A, fw_result=trying, fw_try_next=A
	crossystem fw_result=success
	crossystem -> fw_tried=A, fw_result=success, fw_try_next=A
	crossystem fw_result=failure
	crossystem -> fw_tried=A, fw_result=failure, fw_try_next=A
	crossystem fw_result=unknown
	crossystem -> fw_tried=A, fw_result=unknown, fw_try_next=A

	crossystem -> fw_try_count = 0, fwb_tries = 0
	crossystem fw_try_count=6
	crossystem -> fw_try_count = 6, fwb_tries = 6
	crossystem fwb_tries=0
	crossystem -> fw_try_count = 0, fwb_tries = 0

Change-Id: I1532f3384f8c05de2a7ff3f35abcc35d18049491
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/205475
 2014-06-28 00:56:17 +00:00
Randall Spangler
8de992c441 vboot2: fix overloaded NV bit 
Bill and I both added meanings for byte 1 bit 0x10.  His changed
(NV_BOOT_BACKUP_NVRAM) landed first, so move the vboot2 bit to byte 2.

BUG=chromium:370082
BRANCH=none
TEST=make clean && VBOOT2=1 make runtests

Change-Id: Ib7ff8da47d03f91cbeb729ca517c6315dfb4e6ac
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/205408
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
 2014-06-25 01:32:33 +00:00
Randall Spangler
b9be53640e vboot2: Use more specific error codes 
Error codes reported by the crypto and storage APIs are now very
specific, and tests verify the proper errors are reported.

More specific error codes coming to other files next, but I don't want
this CL to get too long.

This also changes test_common.c so TEST_EQ() reports mismatched values
in both decimal and hex, and adds TEST_SUCC() to test for a successful
return value.

BUG=chromium:370082
BRANCH=none
TEST=make clean && VBOOT2=1 COV=1 make

Change-Id: I255c8e5769284fbc286b9d94631b19677a71cdd0
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/202778
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
 2014-06-07 01:37:21 +00:00
Randall Spangler
3333e57849 vboot2: Add nvstorage and secdata functions 
This is the second of several CLs adding a more memory- and
code-efficient firmware verification library.

BUG=chromium:370082
BRANCH=none
TEST=make clean && COV=1 make

Change-Id: I1dd571e7511bff18469707d5a2e90068e68e0d6f
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/199841
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
 2014-06-05 23:14:27 +00:00