nagendra modadugu 8bbb0f2472 g: have key-ladder functions grab the SHA lock
Key-ladder operations require use of the hardware
SHA engine, thus grab the SHA lock prior to executing
any key-ladder operations.

BRANCH=none
BUG=chrome-os-partner:55331
TEST=TCG tests pass

Change-Id: Ib9bce3b37894e56ff8858b08cba973d04d3a016e
Signed-off-by: nagendra modadugu <ngm@google.com>
Reviewed-on: https://chromium-review.googlesource.com/430314
Commit-Ready: Marius Schilder <mschilder@chromium.org>
Tested-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Marius Schilder <mschilder@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
2017-01-20 20:45:38 -08:00
2017-01-18 22:50:54 -08:00
2016-11-10 21:28:33 -08:00
2016-09-09 19:20:12 -07:00
2012-05-11 09:11:52 -07:00
2014-04-02 19:58:53 +00:00
2015-12-08 20:05:05 -08:00

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
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