Randall Spangler f49e1c3b42
cr50: Convert spihash to TPM vendor command ...
The console command now calls the vendor command to do the work.
Otherwise, the same as before.
BUG=chromium:804507
BRANCH=cr50 release (after testing)
TEST=manual:
# Sample sequence
spihash ap -> requires physical presence; tap power button
spihash 0 1024 -> gives a hash; compare with first 1KB of image.bin
spihash dump 0 128 -> dumps first 128 bytes; compare with image.bin
spihash 128 128 -> offset works
spihash 0 0x100000 -> gives a hash; doesn't watchdog reset
spihdev ec
spihash 0 1024 -> compare with ec.bin
spihash disable
# Test timeout
spihash ap
# Wait 30 seconds
spihash 0 1024 -> still works
# Wait 60 seconds; goes back disabled automatically
spihash 0 1024 -> fails because spihash is disabled
# Presence not required when CCD opened
ccd open
spihash ap -> no PP required
spihash 0 1024 -> works
spihash disable
# Possible for owner to disable via CCD config
ccd -> HashFlash is "Always"
ccd set HashFlash IfOpened
ccd lock
spihash ap -> access denied
# Cleanup
ccd open
ccd reset
ccd lock
Change-Id: Ife9335a1e402a7596d99bf515ec89ff94e8a0044
Signed-off-by: Randall Spangler <rspangler@chromium.org >
Reviewed-on: https://chromium-review.googlesource.com/910083
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org >
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org >
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f49e1c3b42