Bug fixes and timing code. This is the first fully functional code,

src/platform/tpm_lite/src/testsuite/readonly.c

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 /* This program mimicks the TPM usage from read-only firmware.  It exercises
  * the TPM functionality needed in the read-only firmware.  It is meant to be
  * integrated with the rest of the read-only firmware.  It is also provided as
  * a test.
  */
@@ skipping 17 matching lines @@
 
 /* This is called once at initialization time.  It may be called again from
  * recovery mode to rebuild the spaces if something incomprehensible happened
  * and the spaces are gone or messed up.  This is called after TPM_Startup and
  * before the spaces are write-locked, so there is a chance that they can be
  * recreated (but who knows---if anything can happen, there are plenty of ways
  * of making this FUBAR).
  */
 void InitializeSpaces(void) {
   uint32_t zero = 0;
-  uint32_t perm = TPM_NV_PER_WRITE_STCLEAR;
+  uint32_t perm = TPM_NV_PER_WRITE_STCLEAR | TPM_NV_PER_PPWRITE;
 
   printf("Initializing spaces\n");
   TlclSetNvLocked();  /* useful only the first time */
 
   TlclDefineSpace(INDEX0, perm, 4);
   TlclWrite(INDEX0, (uint8_t *) &zero, 4);
   TlclDefineSpace(INDEX1, perm, 4);
   TlclWrite(INDEX1, (uint8_t *) &zero, 4);
   TlclDefineSpace(INDEX2, perm, 4);
   TlclWrite(INDEX2, (uint8_t *) &zero, 4);
@@ skipping 11 matching lines @@
   exit(0);
 }
   
 
 int main(void) {
   uint8_t c;
   uint32_t index_0, index_1, index_2, index_3;
 
   TlclLibinit();
 
-#if 0
   TlclStartup();
   TlclSelftestfull();
-#endif
 
   TlclAssertPhysicalPresence();
 
   /* Checks if initialization has completed by trying to read-lock a space
    * that's created at the end of initialization.
    */
   if (TlclRead(INDEX_INITIALIZED, &c, 0) == TPM_E_BADINDEX) {
     /* The initialization did not complete.
      */
     InitializeSpaces();
@@ skipping 18 matching lines @@
   TlclWriteLock(INDEX0);
   if (TlclWrite(INDEX0, (uint8_t*) &index_0, sizeof(index_0)) == TPM_SUCCESS) {
     error("index 0 is not locked\n");
   }
 
   /* Done for now.
    */
   printf("Test completed successfully\n");
   exit(0);
 }