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4fd6f23101
Also, increase console task stack size, as adding entropy
requires 780 bytes of stack.
BRANCH=none
BUG=b:38486828
TEST=Flash hammer
rollbackinfo => 1 version 0 block, 1 empty block, RW verifies
correctly.
rollbackupdate 0; rollbackinfo => No change
rollbackupdate 1; reboot => RO refuses to jump to RW
rollbackinfo => Secret is [00..00] on both block (so the data
was copied correctly)
rollbackupdate 2, 3, 4; rollbackinfo => Writes alternate
between the 2 blocks.
rollbackupdate 2 => Refuses to downgrade version
TEST=From blank secret [00..00], 'rollbackaddent Hello' updates it
to [ba..fa], which matches the output of:
(dd if=/dev/zero bs=1 count=32; echo -n Hello) | sha256sum
Change-Id: If63346dfab0a28aa82a7b4c2e46ca89fde3eb990
Reviewed-on: https://chromium-review.googlesource.com/511986
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit For instructions on building from source, refer to http://www.chromium.org/chromium-os/ec-development/getting-started-building-ec-images-quickly