This adds a field in the GBB header to store the sha256 digest of
the HWID string, and updates gbb_utility so that it stores the
digest when it modifies the HWID. Because this is a new field,
the GBB_MINOR_VER is incremented.
BUG=chromium:415227
BRANCH=ToT
TEST=make runtests, VBOOT2=1 make runtests
Since the GBB is in the RO firmware, there should be no side
effects for existing devices (but even without that, they should
handle a minor version change without complaint).
Change-Id: Icdb2a0b564677b0b65e58df897d2ec5af3964998
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221360
This allows the algorithm list to be shared by code which simply needs
to look at the vboot structures.
No functional changes; just moving enums around and adding comments.
BUG=chromium:423882
BRANCH=none
TEST=make runtests; VBOOT2=1 make runtests
Change-Id: Ia8cefeffb28d5eceb290540195193ea13e68e2c1
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/223541
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
In order to disable PD software sync but still do EC software sync
it is useful to have a separate GBB flag for it.
This will allow me to release a Samus P2B firmware image that will
update the EC but not the PD, since the PD FW that comes on P2B
devices cannot be updated with software sync.
BUG=chrome-os-partner:30079
BRANCH=None
TEST=flash BIOS with updated EC+PD:
1) no GBB flags to override behavior updates both EC and PD
2) GBB flag to disable EC software sync disables both EC and PD update
3) GBB flag to disable PD software sync disables only PD update
Change-Id: I49ffb59238bee4a2dd66b24f2516e3ce46ea06cd
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/211910
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Compiling in the GBB magic number as is causes any tools that search for the
number to fail. This patch allows firmware to embed XOR'ed signature.
TEST=Booted Nyan in normal mode. FAFT:firmware_DevMode passes.
BUG=none
BRANCH=none
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Change-Id: Id18905a9969af3db24151e7c51332d0e94405108
Reviewed-on: https://chromium-review.googlesource.com/205416
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Daisuke Nojiri <dnojiri@chromium.org>
Tested-by: Daisuke Nojiri <dnojiri@chromium.org>
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>
