Add lots of debugging to TPM library.

firmware/lib/include/rollback_index.h

 /* 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.
  *
  * Functions for querying, manipulating and locking rollback indices
  * stored in the TPM NVRAM.
  */
 
 #ifndef VBOOT_REFERENCE_ROLLBACK_INDEX_H_
 #define VBOOT_REFERENCE_ROLLBACK_INDEX_H_
 
 #include "sysincludes.h"
 #include "tss_constants.h"
 
 /* Rollback version types. */
 #define FIRMWARE_VERSIONS 0
 #define KERNEL_VERSIONS   1
 
 /* Initialization mode */
 #define RO_RECOVERY_MODE 0
 #define RO_NORMAL_MODE   1
 #define RW_NORMAL_MODE   2
 
 /* TPM NVRAM location indices. */
+#define FIRST_ROLLBACK_NV_INDEX         0x1001  /* First index used here */
 #define FIRMWARE_VERSIONS_NV_INDEX      0x1001
 #define KERNEL_VERSIONS_NV_INDEX        0x1002
 #define TPM_IS_INITIALIZED_NV_INDEX     0x1003
 #define KERNEL_VERSIONS_BACKUP_NV_INDEX 0x1004
 #define KERNEL_MUST_USE_BACKUP_NV_INDEX 0x1005
 #define DEVELOPER_MODE_NV_INDEX         0x1006
+#define LAST_ROLLBACK_NV_INDEX          0x1006  /* Last index used here */
 
 /* Unique ID to detect kernel space redefinition */
 #define KERNEL_SPACE_UID "GRWL"        /* unique ID with secret meaning */
 #define KERNEL_SPACE_UID_SIZE (sizeof(KERNEL_SPACE_UID) - 1)
 #define KERNEL_SPACE_INIT_DATA ((uint8_t*) "\0\0\0\0" KERNEL_SPACE_UID)
 #define KERNEL_SPACE_SIZE (sizeof(uint32_t) + KERNEL_SPACE_UID_SIZE)
 
 /* All functions return TPM_SUCCESS (zero) if successful, non-zero if error */
 
 /*
@@ skipping 58 matching lines @@
 /* The following functions are here for testing only. */
 
 /* Store 1 in *|initialized| if the TPM NVRAM spaces have been initialized, 0
  * otherwise.  Return TPM errors. */
 uint32_t GetSpacesInitialized(int* initialized);
 
 /* Issue a TPM_Clear and reenable/reactivate the TPM. */
 uint32_t TPMClearAndReenable(void);
 
 #endif  /* VBOOT_REFERENCE_ROLLBACK_INDEX_H_ */