text: /* Microsoft Reference Implementation for TPM 2.0
   *
   *  The copyright in this software is being made available under the BSD License,
   *  included below. This software may be subject to other third party and
   *  contributor rights, including patent rights, and no such rights are granted
   *  under this license.
   *
   *  Copyright (c) Microsoft Corporation
   *
   *  All rights reserved.
   *
   *  BSD License
   *
   *  Redistribution and use in source and binary forms, with or without modification,
   *  are permitted provided that the following conditions are met:
   *
   *  Redistributions of source code must retain the above copyright notice, this list
   *  of conditions and the following disclaimer.
   *
   *  Redistributions in binary form must reproduce the above copyright notice, this
   *  list of conditions and the following disclaimer in the documentation and/or
   *  other materials provided with the distribution.
   *
   *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS""
   *  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   *  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
   *  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   *  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
   *  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   *  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  #include "Tpm.h"
  #include "_TPM_Init_fp.h"
  
   // This function is used to process a _TPM_Init indication.
  LIB_EXPORT void
  _TPM_Init(
      void
      )
  {
      g_powerWasLost = g_powerWasLost | _plat__WasPowerLost();
  
  #if SIMULATION && DEBUG
      // If power was lost and this was a simulation, put canary in RAM used by NV
      // so that uninitialized memory can be detected more easily
      if(g_powerWasLost)
      {
          memset(&gc, 0xbb, sizeof(gc));
          memset(&gr, 0xbb, sizeof(gr));
          memset(&gp, 0xbb, sizeof(gp));
          memset(&go, 0xbb, sizeof(go));
      }
  #endif   
  
  #if SIMULATION
      // Clear the flag that forces failure on self-test
      g_forceFailureMode = FALSE;
  #endif
  
      // Disable the tick processing
      _plat__ACT_EnableTicks(FALSE);
  
      // Set initialization state
      TPMInit();
  
      // Set g_DRTMHandle as unassigned
      g_DRTMHandle = TPM_RH_UNASSIGNED;
  
      // No H-CRTM, yet.
      g_DrtmPreStartup = FALSE;
  
      // Initialize the NvEnvironment.
      g_nvOk = NvPowerOn();
      
      // Initialize cryptographic functions
      g_inFailureMode = (CryptInit() == FALSE);
      if(!g_inFailureMode)
      {
          // Load the persistent data
          NvReadPersistent();
  
          // Load the orderly data (clock and DRBG state).
          // If this is not done here, things break
          NvRead(&go, NV_ORDERLY_DATA, sizeof(go));
  
          // Start clock. Need to do this after NV has been restored.
          TimePowerOn();
      }
      return;
  }