SecurityPkg HashLibBaseCryptoRouterDxe/Tpm2DeviceLibRouterPei: Fixed GCC build failur...
[mirror_edk2.git] / SecurityPkg / Library / Tpm2DeviceLibRouter / Tpm2DeviceLibRouterPei.c
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1/** @file\r
2 Ihis library is TPM2 device router. Platform can register multi TPM2 instance to it\r
3 via PcdTpmInstanceGuid. Platform need make choice that which one will be final one.\r
4 At most one TPM2 instance can be finally registered, and other will return unsupported.\r
5\r
859b0db4 6Copyright (c) 2013 - 2014, Intel Corporation. All rights reserved. <BR>\r
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7This program and the accompanying materials\r
8are licensed and made available under the terms and conditions of the BSD License\r
9which accompanies this distribution. The full text of the license may be found at\r
10http://opensource.org/licenses/bsd-license.php\r
11\r
12THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
13WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
14\r
15**/\r
16\r
17#include <Library/BaseLib.h>\r
18#include <Library/BaseMemoryLib.h>\r
19#include <Library/HobLib.h>\r
20#include <Library/DebugLib.h>\r
21#include <Library/PcdLib.h>\r
22#include <Library/Tpm2DeviceLib.h>\r
23\r
24EFI_GUID mInternalTpm2DeviceInterfaceGuid = {\r
859b0db4 25 0x349cf818, 0xc0ba, 0x4c43, { 0x92, 0x9a, 0xc8, 0xa1, 0xb1, 0xb3, 0xd2, 0x55 }\r
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26};\r
27\r
28/**\r
29 This function get TPM2.0 interface.\r
30\r
31 @retval TPM2.0 interface.\r
32**/\r
33TPM2_DEVICE_INTERFACE *\r
34InternalGetTpm2DeviceInterface (\r
35 VOID\r
36 )\r
37{\r
38 EFI_HOB_GUID_TYPE *Hob;\r
39\r
40 Hob = GetFirstGuidHob (&mInternalTpm2DeviceInterfaceGuid);\r
41 if (Hob == NULL) {\r
42 return NULL;\r
43 }\r
44 return (TPM2_DEVICE_INTERFACE *)(Hob + 1);\r
45}\r
46\r
47/**\r
48 This service enables the sending of commands to the TPM2.\r
49\r
50 @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.\r
51 @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.\r
52 @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.\r
53 @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.\r
54\r
55 @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.\r
56 @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.\r
57 @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small. \r
58**/\r
59EFI_STATUS\r
60EFIAPI\r
61Tpm2SubmitCommand (\r
62 IN UINT32 InputParameterBlockSize,\r
63 IN UINT8 *InputParameterBlock,\r
64 IN OUT UINT32 *OutputParameterBlockSize,\r
65 IN UINT8 *OutputParameterBlock\r
66 )\r
67{\r
68 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
69\r
70 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
71 if (Tpm2DeviceInterface == NULL) {\r
72 return EFI_UNSUPPORTED;\r
73 }\r
74\r
75 return Tpm2DeviceInterface->Tpm2SubmitCommand (\r
76 InputParameterBlockSize,\r
77 InputParameterBlock,\r
78 OutputParameterBlockSize,\r
79 OutputParameterBlock\r
80 );\r
81}\r
82\r
83/**\r
84 This service requests use TPM2.\r
85\r
86 @retval EFI_SUCCESS Get the control of TPM2 chip.\r
87 @retval EFI_NOT_FOUND TPM2 not found.\r
88 @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
89**/\r
90EFI_STATUS\r
91EFIAPI\r
92Tpm2RequestUseTpm (\r
93 VOID\r
94 )\r
95{\r
96 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
97\r
98 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
99 if (Tpm2DeviceInterface == NULL) {\r
100 return EFI_UNSUPPORTED;\r
101 }\r
102 return Tpm2DeviceInterface->Tpm2RequestUseTpm ();\r
103}\r
104\r
105/**\r
106 This service register TPM2 device.\r
107\r
108 @param Tpm2Device TPM2 device\r
109\r
110 @retval EFI_SUCCESS This TPM2 device is registered successfully.\r
111 @retval EFI_UNSUPPORTED System does not support register this TPM2 device.\r
112 @retval EFI_ALREADY_STARTED System already register this TPM2 device.\r
113**/\r
114EFI_STATUS\r
115EFIAPI\r
116Tpm2RegisterTpm2DeviceLib (\r
117 IN TPM2_DEVICE_INTERFACE *Tpm2Device\r
118 )\r
119{\r
120 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
121\r
122 if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &Tpm2Device->ProviderGuid)){\r
123 DEBUG ((EFI_D_ERROR, "WARNING: Tpm2RegisterTpm2DeviceLib - does not support %g registration\n", &Tpm2Device->ProviderGuid));\r
124 return EFI_UNSUPPORTED;\r
125 }\r
126\r
127 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
128 if (Tpm2DeviceInterface != NULL) {\r
129 //\r
130 // In PEI phase, there will be shadow driver dispatched again.\r
131 //\r
132 DEBUG ((EFI_D_ERROR, "Tpm2RegisterTpm2DeviceLib - Override\n"));\r
133 CopyMem (Tpm2DeviceInterface, Tpm2Device, sizeof(*Tpm2Device));\r
134 return EFI_SUCCESS;\r
135 } else {\r
136 Tpm2Device = BuildGuidDataHob (&mInternalTpm2DeviceInterfaceGuid, Tpm2Device, sizeof(*Tpm2Device));\r
137 if (Tpm2Device != NULL) {\r
138 return EFI_SUCCESS;\r
139 } else {\r
140 return EFI_OUT_OF_RESOURCES;\r
141 }\r
142 }\r
143}\r