[mirror_edk2.git] / MdePkg / Include / Protocol / Tcg2Protocol.h

/** @file\r
  TPM2 Protocol as defined in TCG PC Client Platform EFI Protocol Specification Family "2.0".\r
  See http://trustedcomputinggroup.org for the latest specification\r
\r
Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef __TCG2_PROTOCOL_H__\r
#define __TCG2_PROTOCOL_H__\r
\r
#include <IndustryStandard/UefiTcgPlatform.h>\r
#include <IndustryStandard/Tpm20.h>\r
\r
#define EFI_TCG2_PROTOCOL_GUID \\r
  {0x607f766c, 0x7455, 0x42be, { 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f }}\r
\r
typedef struct tdEFI_TCG2_PROTOCOL EFI_TCG2_PROTOCOL;\r
\r
typedef struct tdEFI_TCG2_VERSION {\r
  UINT8 Major;\r
  UINT8 Minor;\r
} EFI_TCG2_VERSION;\r
\r
typedef UINT32 EFI_TCG2_EVENT_LOG_BITMAP;\r
typedef UINT32 EFI_TCG2_EVENT_LOG_FORMAT;\r
typedef UINT32 EFI_TCG2_EVENT_ALGORITHM_BITMAP;\r
\r
#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2       0x00000001\r
#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2         0x00000002\r
\r
typedef struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY {\r
  //\r
  // Allocated size of the structure\r
  //\r
  UINT8                            Size;\r
  //\r
  // Version of the EFI_TCG2_BOOT_SERVICE_CAPABILITY structure itself.\r
  // For this version of the protocol, the Major version shall be set to 1\r
  // and the Minor version shall be set to 1.\r
  //\r
  EFI_TCG2_VERSION                 StructureVersion;\r
  //\r
  // Version of the EFI TCG2 protocol.\r
  // For this version of the protocol, the Major version shall be set to 1\r
  // and the Minor version shall be set to 1.\r
  //\r
  EFI_TCG2_VERSION                 ProtocolVersion;\r
  //\r
  // Supported hash algorithms (this bitmap is determined by the supported PCR\r
  // banks in the TPM and the hashing algorithms supported by the firmware)\r
  //\r
  EFI_TCG2_EVENT_ALGORITHM_BITMAP  HashAlgorithmBitmap;\r
  //\r
  // Bitmap of supported event log formats\r
  //\r
  EFI_TCG2_EVENT_LOG_BITMAP        SupportedEventLogs;\r
  //\r
  // False = TPM not present\r
  //\r
  BOOLEAN                          TPMPresentFlag;\r
  //\r
  // Max size (in bytes) of a command that can be sent to the TPM\r
  //\r
  UINT16                           MaxCommandSize;\r
  //\r
  // Max size (in bytes) of a response that can be provided by the TPM\r
  //\r
  UINT16                           MaxResponseSize;\r
  //\r
  // 4-byte Vendor ID\r
  // (see TCG Vendor ID registry, Section "TPM Capabilities Vendor ID")\r
  //\r
  UINT32                           ManufacturerID;\r
  //\r
  // Maximum number of PCR banks (hashing algorithms) supported.\r
  // No granularity is provided to support a specific set of algorithms.\r
  // Minimum value is 1.\r
  //\r
  UINT32                           NumberOfPCRBanks;\r
  //\r
  // A bitmap of currently active PCR banks (hashing algorithms).\r
  // This is a subset of the supported hashing algorithms reported in HashAlgorithmBitMap.\r
  // NumberOfPcrBanks defines the number of bits that are set.\r
  //\r
  EFI_TCG2_EVENT_ALGORITHM_BITMAP  ActivePcrBanks;\r
} EFI_TCG2_BOOT_SERVICE_CAPABILITY;\r
\r
#define EFI_TCG2_BOOT_HASH_ALG_SHA1    0x00000001\r
#define EFI_TCG2_BOOT_HASH_ALG_SHA256  0x00000002\r
#define EFI_TCG2_BOOT_HASH_ALG_SHA384  0x00000004\r
#define EFI_TCG2_BOOT_HASH_ALG_SHA512  0x00000008\r
#define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010\r
\r
//\r
// This bit is shall be set when an event shall be extended but not logged.\r
//\r
#define EFI_TCG2_EXTEND_ONLY  0x0000000000000001\r
//\r
// This bit shall be set when the intent is to measure a PE/COFF image.\r
//\r
#define PE_COFF_IMAGE     0x0000000000000010\r
\r
#define MAX_PCR_INDEX  23\r
\r
#pragma pack(1)\r
\r
#define EFI_TCG2_EVENT_HEADER_VERSION  1\r
\r
typedef struct {\r
  //\r
  // Size of the event header itself (sizeof(EFI_TCG2_EVENT_HEADER)).\r
  //\r
  UINT32            HeaderSize;\r
  //\r
  // Header version. For this version of this specification, the value shall be 1.\r
  //\r
  UINT16            HeaderVersion;\r
  //\r
  // Index of the PCR that shall be extended (0 - 23).\r
  //\r
  TCG_PCRINDEX      PCRIndex;\r
  //\r
  // Type of the event that shall be extended (and optionally logged).\r
  //\r
  TCG_EVENTTYPE     EventType;\r
} EFI_TCG2_EVENT_HEADER;\r
\r
typedef struct tdEFI_TCG2_EVENT {\r
  //\r
  // Total size of the event including the Size component, the header and the Event data.\r
  //\r
  UINT32                Size;\r
  EFI_TCG2_EVENT_HEADER Header;\r
  UINT8                 Event[1];\r
} EFI_TCG2_EVENT;\r
\r
#pragma pack()\r
\r
/**\r
  The EFI_TCG2_PROTOCOL GetCapability function call provides protocol\r
  capability information and state information.\r
\r
  @param[in]      This               Indicates the calling context\r
  @param[in, out] ProtocolCapability The caller allocates memory for a EFI_TCG2_BOOT_SERVICE_CAPABILITY\r
                                     structure and sets the size field to the size of the structure allocated.\r
                                     The callee fills in the fields with the EFI protocol capability information\r
                                     and the current EFI TCG2 state information up to the number of fields which\r
                                     fit within the size of the structure passed in.\r
\r
  @retval EFI_SUCCESS            Operation completed successfully.\r
  @retval EFI_DEVICE_ERROR       The command was unsuccessful.\r
                                 The ProtocolCapability variable will not be populated.\r
  @retval EFI_INVALID_PARAMETER  One or more of the parameters are incorrect.\r
                                 The ProtocolCapability variable will not be populated.\r
  @retval EFI_BUFFER_TOO_SMALL   The ProtocolCapability variable is too small to hold the full response.\r
                                 It will be partially populated (required Size field will be set).\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_GET_CAPABILITY) (\r
  IN EFI_TCG2_PROTOCOL                    *This,\r
  IN OUT EFI_TCG2_BOOT_SERVICE_CAPABILITY *ProtocolCapability\r
  );\r
\r
/**\r
  The EFI_TCG2_PROTOCOL Get Event Log function call allows a caller to\r
  retrieve the address of a given event log and its last entry.\r
\r
  @param[in]  This               Indicates the calling context\r
  @param[in]  EventLogFormat     The type of the event log for which the information is requested.\r
  @param[out] EventLogLocation   A pointer to the memory address of the event log.\r
  @param[out] EventLogLastEntry  If the Event Log contains more than one entry, this is a pointer to the\r
                                 address of the start of the last entry in the event log in memory.\r
  @param[out] EventLogTruncated  If the Event Log is missing at least one entry because an event would\r
                                 have exceeded the area allocated for events, this value is set to TRUE.\r
                                 Otherwise, the value will be FALSE and the Event Log will be complete.\r
\r
  @retval EFI_SUCCESS            Operation completed successfully.\r
  @retval EFI_INVALID_PARAMETER  One or more of the parameters are incorrect\r
                                 (e.g. asking for an event log whose format is not supported).\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_GET_EVENT_LOG) (\r
  IN EFI_TCG2_PROTOCOL         *This,\r
  IN EFI_TCG2_EVENT_LOG_FORMAT EventLogFormat,\r
  OUT EFI_PHYSICAL_ADDRESS     *EventLogLocation,\r
  OUT EFI_PHYSICAL_ADDRESS     *EventLogLastEntry,\r
  OUT BOOLEAN                  *EventLogTruncated\r
  );\r
\r
/**\r
  The EFI_TCG2_PROTOCOL HashLogExtendEvent function call provides callers with\r
  an opportunity to extend and optionally log events without requiring\r
  knowledge of actual TPM commands.\r
  The extend operation will occur even if this function cannot create an event\r
  log entry (e.g. due to the event log being full).\r
\r
  @param[in]  This               Indicates the calling context\r
  @param[in]  Flags              Bitmap providing additional information.\r
  @param[in]  DataToHash         Physical address of the start of the data buffer to be hashed.\r
  @param[in]  DataToHashLen      The length in bytes of the buffer referenced by DataToHash.\r
  @param[in]  EfiTcgEvent        Pointer to data buffer containing information about the event.\r
\r
  @retval EFI_SUCCESS            Operation completed successfully.\r
  @retval EFI_DEVICE_ERROR       The command was unsuccessful.\r
  @retval EFI_VOLUME_FULL        The extend operation occurred, but the event could not be written to one or more event logs.\r
  @retval EFI_INVALID_PARAMETER  One or more of the parameters are incorrect.\r
  @retval EFI_UNSUPPORTED        The PE/COFF image type is not supported.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI * EFI_TCG2_HASH_LOG_EXTEND_EVENT) (\r
  IN EFI_TCG2_PROTOCOL    *This,\r
  IN UINT64               Flags,\r
  IN EFI_PHYSICAL_ADDRESS DataToHash,\r
  IN UINT64               DataToHashLen,\r
  IN EFI_TCG2_EVENT       *EfiTcgEvent\r
  );\r
\r
/**\r
  This service enables the sending of commands to the TPM.\r
\r
  @param[in]  This                     Indicates the calling context\r
  @param[in]  InputParameterBlockSize  Size of the TPM input parameter block.\r
  @param[in]  InputParameterBlock      Pointer to the TPM input parameter block.\r
  @param[in]  OutputParameterBlockSize Size of the TPM output parameter block.\r
  @param[in]  OutputParameterBlock     Pointer to the TPM output parameter block.\r
\r
  @retval EFI_SUCCESS            The command byte stream was successfully sent to the device and a response was successfully received.\r
  @retval EFI_DEVICE_ERROR       The command was not successfully sent to the device or a response was not successfully received from the device.\r
  @retval EFI_INVALID_PARAMETER  One or more of the parameters are incorrect.\r
  @retval EFI_BUFFER_TOO_SMALL   The output parameter block is too small.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_SUBMIT_COMMAND) (\r
  IN EFI_TCG2_PROTOCOL *This,\r
  IN UINT32            InputParameterBlockSize,\r
  IN UINT8             *InputParameterBlock,\r
  IN UINT32            OutputParameterBlockSize,\r
  IN UINT8             *OutputParameterBlock\r
  );\r
\r
/**\r
  This service returns the currently active PCR banks.\r
\r
  @param[in]  This            Indicates the calling context\r
  @param[out] ActivePcrBanks  Pointer to the variable receiving the bitmap of currently active PCR banks.\r
\r
  @retval EFI_SUCCESS           The bitmap of active PCR banks was stored in the ActivePcrBanks parameter.\r
  @retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_GET_ACTIVE_PCR_BANKS) (\r
  IN  EFI_TCG2_PROTOCOL *This,\r
  OUT UINT32            *ActivePcrBanks\r
  );\r
\r
/**\r
  This service sets the currently active PCR banks.\r
\r
  @param[in]  This            Indicates the calling context\r
  @param[in]  ActivePcrBanks  Bitmap of the requested active PCR banks. At least one bit SHALL be set.\r
\r
  @retval EFI_SUCCESS           The bitmap in ActivePcrBank parameter is already active.\r
  @retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_SET_ACTIVE_PCR_BANKS) (\r
  IN EFI_TCG2_PROTOCOL *This,\r
  IN UINT32            ActivePcrBanks\r
  );\r
\r
/**\r
  This service retrieves the result of a previous invocation of SetActivePcrBanks.\r
\r
  @param[in]  This              Indicates the calling context\r
  @param[out] OperationPresent  Non-zero value to indicate a SetActivePcrBank operation was invoked during the last boot.\r
  @param[out] Response          The response from the SetActivePcrBank request.\r
\r
  @retval EFI_SUCCESS           The result value could be returned.\r
  @retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS) (\r
  IN  EFI_TCG2_PROTOCOL  *This,\r
  OUT UINT32             *OperationPresent,\r
  OUT UINT32             *Response\r
  );\r
\r
struct tdEFI_TCG2_PROTOCOL {\r
  EFI_TCG2_GET_CAPABILITY                     GetCapability;\r
  EFI_TCG2_GET_EVENT_LOG                      GetEventLog;\r
  EFI_TCG2_HASH_LOG_EXTEND_EVENT              HashLogExtendEvent;\r
  EFI_TCG2_SUBMIT_COMMAND                     SubmitCommand;\r
  EFI_TCG2_GET_ACTIVE_PCR_BANKS               GetActivePcrBanks;\r
  EFI_TCG2_SET_ACTIVE_PCR_BANKS               SetActivePcrBanks;\r
  EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS GetResultOfSetActivePcrBanks;\r
};\r
\r
extern EFI_GUID gEfiTcg2ProtocolGuid;\r
\r
//\r
// Log entries after Get Event Log service\r
//\r
\r
#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID \\r
  {0x1e2ed096, 0x30e2, 0x4254, { 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25 }}\r
\r
extern EFI_GUID gEfiTcg2FinalEventsTableGuid;\r
\r
typedef struct tdEFI_TCG2_FINAL_EVENTS_TABLE {\r
  //\r
  // The version of this structure.\r
  //\r
  UINT64                  Version;\r
  //\r
  // Number of events recorded after invocation of GetEventLog API\r
  //\r
  UINT64                  NumberOfEvents;\r
  //\r
  // List of events of type TCG_PCR_EVENT2.\r
  //\r
//TCG_PCR_EVENT2          Event[1];\r
} EFI_TCG2_FINAL_EVENTS_TABLE;\r
\r
#define EFI_TCG2_FINAL_EVENTS_TABLE_VERSION   1\r
\r
#endif\r
Commit	Line	Data
59b226d6 JY	1	/** @file\r
	2	TPM2 Protocol as defined in TCG PC Client Platform EFI Protocol Specification Family "2.0".\r
	3	See http://trustedcomputinggroup.org for the latest specification\r
	4	\r
9095d37b	5	Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>\r
9344f092	6	SPDX-License-Identifier: BSD-2-Clause-Patent\r
59b226d6 JY	7	\r
	8	**/\r
	9	\r
	10	#ifndef __TCG2_PROTOCOL_H__\r
	11	#define __TCG2_PROTOCOL_H__\r
	12	\r
	13	#include <IndustryStandard/UefiTcgPlatform.h>\r
	14	#include <IndustryStandard/Tpm20.h>\r
	15	\r
	16	#define EFI_TCG2_PROTOCOL_GUID \\r
	17	{0x607f766c, 0x7455, 0x42be, { 0x93, 0x0b, 0xe4, 0xd7, 0x6d, 0xb2, 0x72, 0x0f }}\r
	18	\r
	19	typedef struct tdEFI_TCG2_PROTOCOL EFI_TCG2_PROTOCOL;\r
	20	\r
	21	typedef struct tdEFI_TCG2_VERSION {\r
	22	UINT8 Major;\r
	23	UINT8 Minor;\r
	24	} EFI_TCG2_VERSION;\r
	25	\r
	26	typedef UINT32 EFI_TCG2_EVENT_LOG_BITMAP;\r
	27	typedef UINT32 EFI_TCG2_EVENT_LOG_FORMAT;\r
	28	typedef UINT32 EFI_TCG2_EVENT_ALGORITHM_BITMAP;\r
	29	\r
	30	#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_1_2 0x00000001\r
	31	#define EFI_TCG2_EVENT_LOG_FORMAT_TCG_2 0x00000002\r
	32	\r
	33	typedef struct tdEFI_TCG2_BOOT_SERVICE_CAPABILITY {\r
	34	//\r
	35	// Allocated size of the structure\r
	36	//\r
	37	UINT8 Size;\r
	38	//\r
	39	// Version of the EFI_TCG2_BOOT_SERVICE_CAPABILITY structure itself.\r
	40	// For this version of the protocol, the Major version shall be set to 1\r
9095d37b	41	// and the Minor version shall be set to 1.\r
59b226d6 JY	42	//\r
	43	EFI_TCG2_VERSION StructureVersion;\r
	44	//\r
	45	// Version of the EFI TCG2 protocol.\r
	46	// For this version of the protocol, the Major version shall be set to 1\r
9095d37b	47	// and the Minor version shall be set to 1.\r
59b226d6 JY	48	//\r
	49	EFI_TCG2_VERSION ProtocolVersion;\r
	50	//\r
	51	// Supported hash algorithms (this bitmap is determined by the supported PCR\r
	52	// banks in the TPM and the hashing algorithms supported by the firmware)\r
	53	//\r
	54	EFI_TCG2_EVENT_ALGORITHM_BITMAP HashAlgorithmBitmap;\r
	55	//\r
	56	// Bitmap of supported event log formats\r
	57	//\r
	58	EFI_TCG2_EVENT_LOG_BITMAP SupportedEventLogs;\r
	59	//\r
	60	// False = TPM not present\r
	61	//\r
	62	BOOLEAN TPMPresentFlag;\r
	63	//\r
	64	// Max size (in bytes) of a command that can be sent to the TPM\r
	65	//\r
	66	UINT16 MaxCommandSize;\r
	67	//\r
	68	// Max size (in bytes) of a response that can be provided by the TPM\r
	69	//\r
	70	UINT16 MaxResponseSize;\r
	71	//\r
	72	// 4-byte Vendor ID\r
	73	// (see TCG Vendor ID registry, Section "TPM Capabilities Vendor ID")\r
	74	//\r
	75	UINT32 ManufacturerID;\r
	76	//\r
	77	// Maximum number of PCR banks (hashing algorithms) supported.\r
	78	// No granularity is provided to support a specific set of algorithms.\r
	79	// Minimum value is 1.\r
	80	//\r
	81	UINT32 NumberOfPCRBanks;\r
	82	//\r
	83	// A bitmap of currently active PCR banks (hashing algorithms).\r
	84	// This is a subset of the supported hashing algorithms reported in HashAlgorithmBitMap.\r
	85	// NumberOfPcrBanks defines the number of bits that are set.\r
	86	//\r
	87	EFI_TCG2_EVENT_ALGORITHM_BITMAP ActivePcrBanks;\r
	88	} EFI_TCG2_BOOT_SERVICE_CAPABILITY;\r
	89	\r
	90	#define EFI_TCG2_BOOT_HASH_ALG_SHA1 0x00000001\r
	91	#define EFI_TCG2_BOOT_HASH_ALG_SHA256 0x00000002\r
	92	#define EFI_TCG2_BOOT_HASH_ALG_SHA384 0x00000004\r
	93	#define EFI_TCG2_BOOT_HASH_ALG_SHA512 0x00000008\r
	94	#define EFI_TCG2_BOOT_HASH_ALG_SM3_256 0x00000010\r
	95	\r
	96	//\r
	97	// This bit is shall be set when an event shall be extended but not logged.\r
	98	//\r
	99	#define EFI_TCG2_EXTEND_ONLY 0x0000000000000001\r
	100	//\r
	101	// This bit shall be set when the intent is to measure a PE/COFF image.\r
	102	//\r
	103	#define PE_COFF_IMAGE 0x0000000000000010\r
	104	\r
	105	#define MAX_PCR_INDEX 23\r
	106	\r
	107	#pragma pack(1)\r
	108	\r
	109	#define EFI_TCG2_EVENT_HEADER_VERSION 1\r
	110	\r
	111	typedef struct {\r
112	//\r
9095d37b	113	// Size of the event header itself (sizeof(EFI_TCG2_EVENT_HEADER)).\r
59b226d6 JY	114	//\r
	115	UINT32 HeaderSize;\r
	116	//\r
	117	// Header version. For this version of this specification, the value shall be 1.\r
	118	//\r
	119	UINT16 HeaderVersion;\r
	120	//\r
9095d37b	121	// Index of the PCR that shall be extended (0 - 23).\r
59b226d6 JY	122	//\r
	123	TCG_PCRINDEX PCRIndex;\r
	124	//\r
9095d37b	125	// Type of the event that shall be extended (and optionally logged).\r
59b226d6 JY	126	//\r
	127	TCG_EVENTTYPE EventType;\r
	128	} EFI_TCG2_EVENT_HEADER;\r
	129	\r
	130	typedef struct tdEFI_TCG2_EVENT {\r
	131	//\r
9095d37b	132	// Total size of the event including the Size component, the header and the Event data.\r
59b226d6 JY	133	//\r
	134	UINT32 Size;\r
	135	EFI_TCG2_EVENT_HEADER Header;\r
	136	UINT8 Event[1];\r
	137	} EFI_TCG2_EVENT;\r
	138	\r
	139	#pragma pack()\r
	140	\r
	141	/**\r
	142	The EFI_TCG2_PROTOCOL GetCapability function call provides protocol\r
	143	capability information and state information.\r
	144	\r
	145	@param[in] This Indicates the calling context\r
	146	@param[in, out] ProtocolCapability The caller allocates memory for a EFI_TCG2_BOOT_SERVICE_CAPABILITY\r
	147	structure and sets the size field to the size of the structure allocated.\r
	148	The callee fills in the fields with the EFI protocol capability information\r
	149	and the current EFI TCG2 state information up to the number of fields which\r
	150	fit within the size of the structure passed in.\r
	151	\r
	152	@retval EFI_SUCCESS Operation completed successfully.\r
	153	@retval EFI_DEVICE_ERROR The command was unsuccessful.\r
9095d37b	154	The ProtocolCapability variable will not be populated.\r
59b226d6 JY	155	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
	156	The ProtocolCapability variable will not be populated.\r
	157	@retval EFI_BUFFER_TOO_SMALL The ProtocolCapability variable is too small to hold the full response.\r
9095d37b	158	It will be partially populated (required Size field will be set).\r
59b226d6 JY	159	**/\r
	160	typedef\r
	161	EFI_STATUS\r
	162	(EFIAPI *EFI_TCG2_GET_CAPABILITY) (\r
	163	IN EFI_TCG2_PROTOCOL *This,\r
	164	IN OUT EFI_TCG2_BOOT_SERVICE_CAPABILITY *ProtocolCapability\r
	165	);\r
	166	\r
	167	/**\r
	168	The EFI_TCG2_PROTOCOL Get Event Log function call allows a caller to\r
9095d37b	169	retrieve the address of a given event log and its last entry.\r
59b226d6 JY	170	\r
	171	@param[in] This Indicates the calling context\r
	172	@param[in] EventLogFormat The type of the event log for which the information is requested.\r
	173	@param[out] EventLogLocation A pointer to the memory address of the event log.\r
	174	@param[out] EventLogLastEntry If the Event Log contains more than one entry, this is a pointer to the\r
	175	address of the start of the last entry in the event log in memory.\r
	176	@param[out] EventLogTruncated If the Event Log is missing at least one entry because an event would\r
	177	have exceeded the area allocated for events, this value is set to TRUE.\r
	178	Otherwise, the value will be FALSE and the Event Log will be complete.\r
	179	\r
	180	@retval EFI_SUCCESS Operation completed successfully.\r
	181	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect\r
	182	(e.g. asking for an event log whose format is not supported).\r
	183	**/\r
	184	typedef\r
	185	EFI_STATUS\r
	186	(EFIAPI *EFI_TCG2_GET_EVENT_LOG) (\r
	187	IN EFI_TCG2_PROTOCOL *This,\r
	188	IN EFI_TCG2_EVENT_LOG_FORMAT EventLogFormat,\r
	189	OUT EFI_PHYSICAL_ADDRESS *EventLogLocation,\r
	190	OUT EFI_PHYSICAL_ADDRESS *EventLogLastEntry,\r
	191	OUT BOOLEAN *EventLogTruncated\r
	192	);\r
	193	\r
	194	/**\r
	195	The EFI_TCG2_PROTOCOL HashLogExtendEvent function call provides callers with\r
	196	an opportunity to extend and optionally log events without requiring\r
9095d37b	197	knowledge of actual TPM commands.\r
59b226d6	198	The extend operation will occur even if this function cannot create an event\r
9095d37b	199	log entry (e.g. due to the event log being full).\r
59b226d6 JY	200	\r
	201	@param[in] This Indicates the calling context\r
	202	@param[in] Flags Bitmap providing additional information.\r
9095d37b	203	@param[in] DataToHash Physical address of the start of the data buffer to be hashed.\r
59b226d6 JY	204	@param[in] DataToHashLen The length in bytes of the buffer referenced by DataToHash.\r
	205	@param[in] EfiTcgEvent Pointer to data buffer containing information about the event.\r
	206	\r
	207	@retval EFI_SUCCESS Operation completed successfully.\r
	208	@retval EFI_DEVICE_ERROR The command was unsuccessful.\r
	209	@retval EFI_VOLUME_FULL The extend operation occurred, but the event could not be written to one or more event logs.\r
	210	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
	211	@retval EFI_UNSUPPORTED The PE/COFF image type is not supported.\r
	212	**/\r
	213	typedef\r
	214	EFI_STATUS\r
	215	(EFIAPI * EFI_TCG2_HASH_LOG_EXTEND_EVENT) (\r
	216	IN EFI_TCG2_PROTOCOL *This,\r
	217	IN UINT64 Flags,\r
	218	IN EFI_PHYSICAL_ADDRESS DataToHash,\r
	219	IN UINT64 DataToHashLen,\r
	220	IN EFI_TCG2_EVENT *EfiTcgEvent\r
	221	);\r
	222	\r
	223	/**\r
	224	This service enables the sending of commands to the TPM.\r
	225	\r
	226	@param[in] This Indicates the calling context\r
	227	@param[in] InputParameterBlockSize Size of the TPM input parameter block.\r
	228	@param[in] InputParameterBlock Pointer to the TPM input parameter block.\r
	229	@param[in] OutputParameterBlockSize Size of the TPM output parameter block.\r
	230	@param[in] OutputParameterBlock Pointer to the TPM output parameter block.\r
	231	\r
	232	@retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.\r
	233	@retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.\r
	234	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
9095d37b	235	@retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.\r
59b226d6 JY	236	**/\r
	237	typedef\r
	238	EFI_STATUS\r
	239	(EFIAPI *EFI_TCG2_SUBMIT_COMMAND) (\r
	240	IN EFI_TCG2_PROTOCOL *This,\r
	241	IN UINT32 InputParameterBlockSize,\r
	242	IN UINT8 *InputParameterBlock,\r
	243	IN UINT32 OutputParameterBlockSize,\r
	244	IN UINT8 *OutputParameterBlock\r
	245	);\r
	246	\r
	247	/**\r
	248	This service returns the currently active PCR banks.\r
	249	\r
	250	@param[in] This Indicates the calling context\r
	251	@param[out] ActivePcrBanks Pointer to the variable receiving the bitmap of currently active PCR banks.\r
	252	\r
	253	@retval EFI_SUCCESS The bitmap of active PCR banks was stored in the ActivePcrBanks parameter.\r
9095d37b	254	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
59b226d6 JY	255	**/\r
	256	typedef\r
	257	EFI_STATUS\r
	258	(EFIAPI *EFI_TCG2_GET_ACTIVE_PCR_BANKS) (\r
	259	IN EFI_TCG2_PROTOCOL *This,\r
	260	OUT UINT32 *ActivePcrBanks\r
	261	);\r
	262	\r
	263	/**\r
	264	This service sets the currently active PCR banks.\r
	265	\r
	266	@param[in] This Indicates the calling context\r
	267	@param[in] ActivePcrBanks Bitmap of the requested active PCR banks. At least one bit SHALL be set.\r
	268	\r
	269	@retval EFI_SUCCESS The bitmap in ActivePcrBank parameter is already active.\r
	270	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
	271	**/\r
	272	typedef\r
	273	EFI_STATUS\r
	274	(EFIAPI *EFI_TCG2_SET_ACTIVE_PCR_BANKS) (\r
	275	IN EFI_TCG2_PROTOCOL *This,\r
	276	IN UINT32 ActivePcrBanks\r
	277	);\r
	278	\r
	279	/**\r
	280	This service retrieves the result of a previous invocation of SetActivePcrBanks.\r
	281	\r
	282	@param[in] This Indicates the calling context\r
	283	@param[out] OperationPresent Non-zero value to indicate a SetActivePcrBank operation was invoked during the last boot.\r
	284	@param[out] Response The response from the SetActivePcrBank request.\r
	285	\r
	286	@retval EFI_SUCCESS The result value could be returned.\r
	287	@retval EFI_INVALID_PARAMETER One or more of the parameters are incorrect.\r
	288	**/\r
	289	typedef\r
	290	EFI_STATUS\r
	291	(EFIAPI *EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS) (\r
	292	IN EFI_TCG2_PROTOCOL *This,\r
	293	OUT UINT32 *OperationPresent,\r
	294	OUT UINT32 *Response\r
	295	);\r
	296	\r
	297	struct tdEFI_TCG2_PROTOCOL {\r
	298	EFI_TCG2_GET_CAPABILITY GetCapability;\r
	299	EFI_TCG2_GET_EVENT_LOG GetEventLog;\r
	300	EFI_TCG2_HASH_LOG_EXTEND_EVENT HashLogExtendEvent;\r
	301	EFI_TCG2_SUBMIT_COMMAND SubmitCommand;\r
	302	EFI_TCG2_GET_ACTIVE_PCR_BANKS GetActivePcrBanks;\r
	303	EFI_TCG2_SET_ACTIVE_PCR_BANKS SetActivePcrBanks;\r
	304	EFI_TCG2_GET_RESULT_OF_SET_ACTIVE_PCR_BANKS GetResultOfSetActivePcrBanks;\r
	305	};\r
	306	\r
	307	extern EFI_GUID gEfiTcg2ProtocolGuid;\r
	308	\r
	309	//\r
	310	// Log entries after Get Event Log service\r
	311	//\r
	312	\r
	313	#define EFI_TCG2_FINAL_EVENTS_TABLE_GUID \\r
	314	{0x1e2ed096, 0x30e2, 0x4254, { 0xbd, 0x89, 0x86, 0x3b, 0xbe, 0xf8, 0x23, 0x25 }}\r
	315	\r
	316	extern EFI_GUID gEfiTcg2FinalEventsTableGuid;\r
	317	\r
	318	typedef struct tdEFI_TCG2_FINAL_EVENTS_TABLE {\r
319	//\r
320	// The version of this structure.\r
321	//\r
322	UINT64 Version;\r
323	//\r
324	// Number of events recorded after invocation of GetEventLog API\r
325	//\r
326	UINT64 NumberOfEvents;\r
327	//\r
328	// List of events of type TCG_PCR_EVENT2.\r
329	//\r
330	//TCG_PCR_EVENT2 Event[1];\r
331	} EFI_TCG2_FINAL_EVENTS_TABLE;\r
332	\r
333	#define EFI_TCG2_FINAL_EVENTS_TABLE_VERSION 1\r
334	\r
335	#endif\r