src/drivers/intel/ptt/ptt.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 /*
   4  * This driver checks if the PTT Bit is set correctly within the FWSTS4
   5  * register. This is needed in order to use the iTPM, because we have to
   6  * check prior using the interface that this bit is set correctly - otherwise
   7  * it could work unpredictable. The bit should already be set if the Intel ME
   8  * is still in the preboot phase.
   9  *
  10  */
  11 /*
  12  * ptt_active
  13  *
  14  * Checks if the Intel PTT is active. If PTT is active, returns true,
  15  * false otherwise.
  16  */
  17 bool ptt_active(void);