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fe6a06fbf6
Allow TPM to log events in a circular buffer through tpm_log_event(). Logs can be retrieved through a new vendor command VENDOR_CC_POP_LOG_ENTRY. BUG=b:63760920 TEST=On eve, store TPM logs through 'logentry' cr50 console command, verify logs are fetched correctly through 'trunks_send --pop_logentry'. BRANCH=None Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Change-Id: Idbc405728c0ba68078447fb59717d6115830e3d8 Reviewed-on: https://chromium-review.googlesource.com/599352 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> 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