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bbdb9fb321b025823bbb4362367b4057c1b96069
This change configures the AES engine to a) enable rand stalls at 25% during regular operation through AES API's, and b) disable rand stalls when doing fixed-key bulk-encryption (e.g. NVRAM ciphering). TCG tests continue to complete in ~20 minutes (i.e. no noticable slowdown). BRANCH=none BUG=b:38315169 TEST=TCG tests pass Change-Id: I2d26d232491a27bffbbe0b5aedfebaf04e0ad509 Signed-off-by: nagendra modadugu <ngm@google.com> Reviewed-on: https://chromium-review.googlesource.com/502717 Commit-Ready: Nagendra Modadugu <ngm@google.com> Tested-by: Nagendra Modadugu <ngm@google.com> Reviewed-by: Vadim Bendebury <vbendeb@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
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