]>
Commit | Line | Data |
---|---|---|
a33a2f62 JY |
1 | /** @file\r |
2 | Provide FSP API related function.\r | |
3 | \r | |
4 | Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php.\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiPei.h>\r | |
16 | \r | |
17 | #include <Guid/FspHeaderFile.h>\r | |
18 | \r | |
19 | #include <Library/FspApiLib.h>\r | |
20 | #include <Library/BaseMemoryLib.h>\r | |
21 | \r | |
22 | /**\r | |
23 | Wrapper for a thunk to transition from long mode to compatibility mode to execute 32-bit code and then transit back to\r | |
24 | long mode.\r | |
25 | \r | |
26 | @param[in] Function The 32bit code entry to be executed.\r | |
27 | @param[in] Param1 The first parameter to pass to 32bit code.\r | |
28 | \r | |
29 | @return FSP_STATUS.\r | |
30 | **/\r | |
31 | FSP_STATUS\r | |
32 | Execute32BitCode (\r | |
33 | IN UINT64 Function,\r | |
34 | IN UINT64 Param1\r | |
35 | );\r | |
36 | \r | |
37 | /**\r | |
38 | Find FSP header pointer.\r | |
39 | \r | |
40 | @param[in] FlashFvFspBase Flash address of FSP FV.\r | |
41 | \r | |
42 | @return FSP header pointer.\r | |
43 | **/\r | |
44 | FSP_INFO_HEADER *\r | |
45 | EFIAPI\r | |
46 | FspFindFspHeader (\r | |
47 | IN EFI_PHYSICAL_ADDRESS FlashFvFspBase\r | |
48 | )\r | |
49 | {\r | |
50 | UINT8 *CheckPointer;\r | |
51 | \r | |
52 | CheckPointer = (UINT8 *) (UINTN) FlashFvFspBase;\r | |
53 | \r | |
54 | if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->Signature != EFI_FVH_SIGNATURE) {\r | |
55 | return NULL;\r | |
56 | }\r | |
57 | \r | |
58 | if (((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset != 0) {\r | |
59 | CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->ExtHeaderOffset;\r | |
60 | CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_EXT_HEADER *)CheckPointer)->ExtHeaderSize;\r | |
61 | CheckPointer = (UINT8 *) ALIGN_POINTER (CheckPointer, 8);\r | |
62 | } else {\r | |
63 | CheckPointer = CheckPointer + ((EFI_FIRMWARE_VOLUME_HEADER *)CheckPointer)->HeaderLength;\r | |
64 | }\r | |
65 | \r | |
66 | if (!CompareGuid (&((EFI_FFS_FILE_HEADER *)CheckPointer)->Name, &gFspHeaderFileGuid)) {\r | |
67 | return NULL;\r | |
68 | }\r | |
69 | \r | |
70 | CheckPointer = CheckPointer + sizeof (EFI_FFS_FILE_HEADER);\r | |
71 | \r | |
72 | if (((EFI_RAW_SECTION *)CheckPointer)->Type != EFI_SECTION_RAW) {\r | |
73 | return NULL;\r | |
74 | }\r | |
75 | \r | |
76 | CheckPointer = CheckPointer + sizeof (EFI_RAW_SECTION);\r | |
77 | \r | |
78 | return (FSP_INFO_HEADER *)CheckPointer;\r | |
79 | }\r | |
80 | \r | |
81 | /**\r | |
82 | Call FSP API - FspInit.\r | |
83 | \r | |
84 | @param[in] FspHeader FSP header pointer.\r | |
85 | @param[in] FspInitParams Address pointer to the FSP_INIT_PARAMS structure.\r | |
86 | \r | |
87 | @return FSP status returned by FspInit API.\r | |
88 | **/\r | |
89 | FSP_STATUS\r | |
90 | EFIAPI\r | |
91 | CallFspInit (\r | |
92 | IN FSP_INFO_HEADER *FspHeader,\r | |
93 | IN FSP_INIT_PARAMS *FspInitParams\r | |
94 | )\r | |
95 | {\r | |
96 | FSP_FSP_INIT FspInitApi;\r | |
97 | FSP_STATUS FspStatus;\r | |
98 | \r | |
99 | FspInitApi = (FSP_FSP_INIT)(UINTN)(FspHeader->ImageBase + FspHeader->FspInitEntryOffset);\r | |
100 | FspStatus = Execute32BitCode ((UINTN)FspInitApi, (UINTN)FspInitParams);\r | |
101 | \r | |
102 | return FspStatus;\r | |
103 | }\r | |
104 | \r | |
105 | /**\r | |
106 | Call FSP API - FspNotifyPhase.\r | |
107 | \r | |
108 | @param[in] FspHeader FSP header pointer.\r | |
109 | @param[in] NotifyPhaseParams Address pointer to the NOTIFY_PHASE_PARAMS structure.\r | |
110 | \r | |
111 | @return FSP status returned by FspNotifyPhase API.\r | |
112 | **/\r | |
113 | FSP_STATUS\r | |
114 | EFIAPI\r | |
115 | CallFspNotifyPhase (\r | |
116 | IN FSP_INFO_HEADER *FspHeader,\r | |
117 | IN NOTIFY_PHASE_PARAMS *NotifyPhaseParams\r | |
118 | )\r | |
119 | {\r | |
120 | FSP_NOTFY_PHASE NotifyPhaseApi;\r | |
121 | FSP_STATUS FspStatus;\r | |
122 | \r | |
123 | NotifyPhaseApi = (FSP_NOTFY_PHASE)(UINTN)(FspHeader->ImageBase + FspHeader->NotifyPhaseEntryOffset);\r | |
124 | FspStatus = Execute32BitCode ((UINTN)NotifyPhaseApi, (UINTN)NotifyPhaseParams);\r | |
125 | \r | |
126 | return FspStatus;\r | |
127 | }\r |