1 /* Microsoft Reference Implementation for TPM 2.0 2 * 3 * The copyright in this software is being made available under the BSD License, 4 * included below. This software may be subject to other third party and 5 * contributor rights, including patent rights, and no such rights are granted 6 * under this license. 7 * 8 * Copyright (c) Microsoft Corporation 9 * 10 * All rights reserved. 11 * 12 * BSD License 13 * 14 * Redistribution and use in source and binary forms, with or without modification, 15 * are permitted provided that the following conditions are met: 16 * 17 * Redistributions of source code must retain the above copyright notice, this list 18 * of conditions and the following disclaimer. 19 * 20 * Redistributions in binary form must reproduce the above copyright notice, this 21 * list of conditions and the following disclaimer in the documentation and/or 22 * other materials provided with the distribution. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ""AS IS"" 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR 28 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 29 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 31 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34 */ 35 // This file contains the instance data for the Platform module. It is collected 36 // in this file so that the state of the module is easier to manage. 37 38 #ifndef _PLATFORM_DATA_H_ 39 #define _PLATFORM_DATA_H_ 40 41 #ifdef _PLATFORM_DATA_C_ 42 #define EXTERN 43 #else 44 #define EXTERN extern 45 #endif 46 47 // From Cancel.c 48 // Cancel flag. It is initialized as FALSE, which indicate the command is not 49 // being canceled 50 EXTERN int s_isCanceled; 51 52 #ifndef HARDWARE_CLOCK 53 typedef uint64_t clock64_t; 54 // This is the value returned the last time that the system clock was read. This 55 // is only relevant for a simulator or virtual TPM. 56 EXTERN clock64_t s_realTimePrevious; 57 58 // These values are used to try to synthesize a long lived version of clock(). 59 EXTERN clock64_t s_lastSystemTime; 60 EXTERN clock64_t s_lastReportedTime; 61 62 // This is the rate adjusted value that is the equivalent of what would be read from 63 // a hardware register that produced rate adjusted time. 64 EXTERN clock64_t s_tpmTime; 65 #endif // HARDWARE_CLOCK 66 67 // This value indicates that the timer was reset 68 EXTERN int s_timerReset; 69 // This value indicates that the timer was stopped. It causes a clock discontinuity. 70 EXTERN int s_timerStopped; 71 72 // This variable records the time when _plat__TimerReset is called. This mechanism 73 // allow us to subtract the time when TPM is power off from the total 74 // time reported by clock() function 75 EXTERN uint64_t s_initClock; 76 77 // This variable records the timer adjustment factor. 78 EXTERN unsigned int s_adjustRate; 79 80 // For LocalityPlat.c 81 // Locality of current command 82 EXTERN unsigned char s_locality; 83 84 // For NVMem.c 85 // Choose if the NV memory should be backed by RAM or by file. 86 // If this macro is defined, then a file is used as NV. If it is not defined, 87 // then RAM is used to back NV memory. Comment out to use RAM. 88 89 #if (!defined VTPM) || ((VTPM != NO) && (VTPM != YES)) 90 # undef VTPM 91 # define VTPM YES // Default: Either YES or NO 92 #endif 93 94 // For a simulation, use a file to back up the NV 95 #if (!defined FILE_BACKED_NV) || ((FILE_BACKED_NV != NO) && (FILE_BACKED_NV != YES)) 96 # undef FILE_BACKED_NV 97 # define FILE_BACKED_NV (VTPM && YES) // Default: Either YES or NO 98 #endif 99 100 #if SIMULATION 101 # undef FILE_BACKED_NV 102 # define FILE_BACKED_NV YES 103 #endif // SIMULATION 104 105 EXTERN unsigned char s_NV[NV_MEMORY_SIZE]; 106 EXTERN int s_NvIsAvailable; 107 EXTERN int s_NV_unrecoverable; 108 EXTERN int s_NV_recoverable; 109 110 // For PPPlat.c 111 // Physical presence. It is initialized to FALSE 112 EXTERN int s_physicalPresence; 113 114 // From Power 115 EXTERN int s_powerLost; 116 117 // For Entropy.c 118 EXTERN uint32_t lastEntropy; 119 120 #define DEFINE_ACT(N) EXTERN ACT_DATA ACT_##N; 121 FOR_EACH_ACT(DEFINE_ACT) 122 123 EXTERN int actTicksAllowed; 124 125 #endif // _PLATFORM_DATA_H_ 126