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SecurityPkg: Change use of EFI_D_* to DEBUG_*
[mirror_edk2.git] / SecurityPkg / Library / Tpm2DeviceLibRouter / Tpm2DeviceLibRouterPei.c
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c1d93242 1/** @file\r
07309c3d 2 This library is TPM2 device router. Platform can register multi TPM2 instance to it\r
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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
b3548d32 6Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved. <BR>\r
289b714b 7SPDX-License-Identifier: BSD-2-Clause-Patent\r
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8\r
9**/\r
10\r
11#include <Library/BaseLib.h>\r
12#include <Library/BaseMemoryLib.h>\r
13#include <Library/HobLib.h>\r
14#include <Library/DebugLib.h>\r
15#include <Library/PcdLib.h>\r
16#include <Library/Tpm2DeviceLib.h>\r
17\r
18EFI_GUID mInternalTpm2DeviceInterfaceGuid = {\r
859b0db4 19 0x349cf818, 0xc0ba, 0x4c43, { 0x92, 0x9a, 0xc8, 0xa1, 0xb1, 0xb3, 0xd2, 0x55 }\r
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20};\r
21\r
22/**\r
23 This function get TPM2.0 interface.\r
24\r
25 @retval TPM2.0 interface.\r
26**/\r
27TPM2_DEVICE_INTERFACE *\r
28InternalGetTpm2DeviceInterface (\r
29 VOID\r
30 )\r
31{\r
32 EFI_HOB_GUID_TYPE *Hob;\r
33\r
34 Hob = GetFirstGuidHob (&mInternalTpm2DeviceInterfaceGuid);\r
35 if (Hob == NULL) {\r
36 return NULL;\r
37 }\r
38 return (TPM2_DEVICE_INTERFACE *)(Hob + 1);\r
39}\r
40\r
41/**\r
42 This service enables the sending of commands to the TPM2.\r
43\r
44 @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.\r
45 @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.\r
46 @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.\r
47 @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.\r
48\r
49 @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.\r
50 @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.\r
b3548d32 51 @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.\r
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52**/\r
53EFI_STATUS\r
54EFIAPI\r
55Tpm2SubmitCommand (\r
56 IN UINT32 InputParameterBlockSize,\r
57 IN UINT8 *InputParameterBlock,\r
58 IN OUT UINT32 *OutputParameterBlockSize,\r
59 IN UINT8 *OutputParameterBlock\r
60 )\r
61{\r
62 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
63\r
64 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
65 if (Tpm2DeviceInterface == NULL) {\r
66 return EFI_UNSUPPORTED;\r
67 }\r
68\r
69 return Tpm2DeviceInterface->Tpm2SubmitCommand (\r
70 InputParameterBlockSize,\r
71 InputParameterBlock,\r
72 OutputParameterBlockSize,\r
73 OutputParameterBlock\r
74 );\r
75}\r
76\r
77/**\r
78 This service requests use TPM2.\r
79\r
80 @retval EFI_SUCCESS Get the control of TPM2 chip.\r
81 @retval EFI_NOT_FOUND TPM2 not found.\r
82 @retval EFI_DEVICE_ERROR Unexpected device behavior.\r
83**/\r
84EFI_STATUS\r
85EFIAPI\r
86Tpm2RequestUseTpm (\r
87 VOID\r
88 )\r
89{\r
90 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
91\r
92 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
93 if (Tpm2DeviceInterface == NULL) {\r
94 return EFI_UNSUPPORTED;\r
95 }\r
96 return Tpm2DeviceInterface->Tpm2RequestUseTpm ();\r
97}\r
98\r
99/**\r
100 This service register TPM2 device.\r
101\r
102 @param Tpm2Device TPM2 device\r
103\r
104 @retval EFI_SUCCESS This TPM2 device is registered successfully.\r
105 @retval EFI_UNSUPPORTED System does not support register this TPM2 device.\r
106 @retval EFI_ALREADY_STARTED System already register this TPM2 device.\r
107**/\r
108EFI_STATUS\r
109EFIAPI\r
110Tpm2RegisterTpm2DeviceLib (\r
111 IN TPM2_DEVICE_INTERFACE *Tpm2Device\r
112 )\r
113{\r
114 TPM2_DEVICE_INTERFACE *Tpm2DeviceInterface;\r
115\r
116 if (!CompareGuid (PcdGetPtr(PcdTpmInstanceGuid), &Tpm2Device->ProviderGuid)){\r
f0f1a3cb 117 DEBUG ((DEBUG_WARN, "WARNING: Tpm2RegisterTpm2DeviceLib - does not support %g registration\n", &Tpm2Device->ProviderGuid));\r
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118 return EFI_UNSUPPORTED;\r
119 }\r
120\r
121 Tpm2DeviceInterface = InternalGetTpm2DeviceInterface ();\r
122 if (Tpm2DeviceInterface != NULL) {\r
123 //\r
124 // In PEI phase, there will be shadow driver dispatched again.\r
125 //\r
e905fbb0 126 DEBUG ((DEBUG_INFO, "Tpm2RegisterTpm2DeviceLib - Override\n"));\r
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127 CopyMem (Tpm2DeviceInterface, Tpm2Device, sizeof(*Tpm2Device));\r
128 return EFI_SUCCESS;\r
129 } else {\r
130 Tpm2Device = BuildGuidDataHob (&mInternalTpm2DeviceInterfaceGuid, Tpm2Device, sizeof(*Tpm2Device));\r
131 if (Tpm2Device != NULL) {\r
132 return EFI_SUCCESS;\r
133 } else {\r
134 return EFI_OUT_OF_RESOURCES;\r
135 }\r
136 }\r
137}\r