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| author | dnojiri <dnojiri@chromium.org> | 2020-04-03 10:56:43 -0700 |
|---|---|---|
| committer | Julius Werner <jwerner@chromium.org> | 2020-04-17 22:01:48 +0000 |
| commit | dff56a056c7dadf0d970cfe29f0bc9c1fec69e82 (patch) | |
| tree | f45288b8377774613b0a3deffe689dcd64977af7 /Documentation/cbfs.txt | |
| parent | 622c6b84ab029a366dd09740a24d36ae9fad697f (diff) | |
ec_sync: Run EFS2 in romstage
EFS2 allows EC RO to enable PD for special cases. When doing so, it sets
NO_BOOT flag to avoid booting the OS. AP needs to get NO_BOOT flag from
Cr50 and enforce that.
This patch makes verstage get a boot mode and a mirrored hash stored
in kernel secdata from Cr50.
This patch also makes romstage write an expected EC hash (a.k.a. Hexp) to
Cr50 (if there is an update).
BUG=b:147298634, chromium:1045217, b:148259137
BRANCH=none
TEST=Verify software sync succeeds on Puff.
Signed-off-by: dnojiri <dnojiri@chromium.org>
Change-Id: I1f387b6e920205b9cc4c8536561f2a279c36413d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40389
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'Documentation/cbfs.txt')
0 files changed, 0 insertions, 0 deletions