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6b46d772 SV |
1 | /**@file\r |
2 | \r | |
3 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
92df3ca8 | 4 | Copyright (c) 2016 - 2021, Arm Limited. All rights reserved.<BR>\r |
86094561 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
6b46d772 SV |
6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "StandaloneMmCore.h"\r | |
10 | #include <Library/FvLib.h>\r | |
d65e0e48 | 11 | #include <Library/ExtractGuidedSectionLib.h>\r |
6b46d772 SV |
12 | \r |
13 | //\r | |
14 | // List of file types supported by dispatcher\r | |
15 | //\r | |
16 | EFI_FV_FILETYPE mMmFileTypes[] = {\r | |
17 | EFI_FV_FILETYPE_MM,\r | |
18 | 0xE, //EFI_FV_FILETYPE_MM_STANDALONE,\r | |
19 | //\r | |
20 | // Note: DXE core will process the FV image file, so skip it in MM core\r | |
21 | // EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE\r | |
22 | //\r | |
23 | };\r | |
24 | \r | |
25 | EFI_STATUS\r | |
26 | MmAddToDriverList (\r | |
7f72ec0b LE |
27 | IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader,\r |
28 | IN VOID *Pe32Data,\r | |
29 | IN UINTN Pe32DataSize,\r | |
30 | IN VOID *Depex,\r | |
31 | IN UINTN DepexSize,\r | |
32 | IN EFI_GUID *DriverName\r | |
6b46d772 SV |
33 | );\r |
34 | \r | |
35 | BOOLEAN\r | |
36 | FvHasBeenProcessed (\r | |
7f72ec0b | 37 | IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r |
6b46d772 SV |
38 | );\r |
39 | \r | |
40 | VOID\r | |
81e9eca7 | 41 | FvIsBeingProcessed (\r |
7f72ec0b | 42 | IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r |
6b46d772 SV |
43 | );\r |
44 | \r | |
92df3ca8 | 45 | /**\r |
6b46d772 | 46 | Given the pointer to the Firmware Volume Header find the\r |
2a0755a9 | 47 | MM driver and return its PE32 image.\r |
6b46d772 | 48 | \r |
92df3ca8 | 49 | @param [in] FwVolHeader Pointer to memory mapped FV\r |
6b46d772 | 50 | \r |
92df3ca8 SM |
51 | @retval EFI_SUCCESS Success.\r |
52 | @retval EFI_INVALID_PARAMETER Invalid parameter.\r | |
53 | @retval EFI_NOT_FOUND Could not find section data.\r | |
54 | @retval EFI_OUT_OF_RESOURCES Out of resources.\r | |
55 | @retval EFI_VOLUME_CORRUPTED Firmware volume is corrupted.\r | |
56 | @retval EFI_UNSUPPORTED Operation not supported.\r | |
6b46d772 | 57 | \r |
92df3ca8 SM |
58 | **/\r |
59 | EFI_STATUS\r | |
60 | MmCoreFfsFindMmDriver (\r | |
61 | IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r | |
62 | )\r | |
6b46d772 | 63 | {\r |
d65e0e48 AB |
64 | EFI_STATUS Status;\r |
65 | EFI_STATUS DepexStatus;\r | |
66 | EFI_FFS_FILE_HEADER *FileHeader;\r | |
67 | EFI_FV_FILETYPE FileType;\r | |
68 | VOID *Pe32Data;\r | |
69 | UINTN Pe32DataSize;\r | |
70 | VOID *Depex;\r | |
71 | UINTN DepexSize;\r | |
72 | UINTN Index;\r | |
73 | EFI_COMMON_SECTION_HEADER *Section;\r | |
74 | VOID *SectionData;\r | |
75 | UINTN SectionDataSize;\r | |
76 | UINT32 DstBufferSize;\r | |
77 | VOID *ScratchBuffer;\r | |
78 | UINT32 ScratchBufferSize;\r | |
79 | VOID *DstBuffer;\r | |
80 | UINT16 SectionAttribute;\r | |
81 | UINT32 AuthenticationStatus;\r | |
82 | EFI_FIRMWARE_VOLUME_HEADER *InnerFvHeader;\r | |
6b46d772 SV |
83 | \r |
84 | DEBUG ((DEBUG_INFO, "MmCoreFfsFindMmDriver - 0x%x\n", FwVolHeader));\r | |
85 | \r | |
86 | if (FvHasBeenProcessed (FwVolHeader)) {\r | |
87 | return EFI_SUCCESS;\r | |
88 | }\r | |
89 | \r | |
81e9eca7 | 90 | FvIsBeingProcessed (FwVolHeader);\r |
6b46d772 | 91 | \r |
d65e0e48 AB |
92 | //\r |
93 | // First check for encapsulated compressed firmware volumes\r | |
94 | //\r | |
95 | FileHeader = NULL;\r | |
96 | do {\r | |
97 | Status = FfsFindNextFile (EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE,\r | |
98 | FwVolHeader, &FileHeader);\r | |
99 | if (EFI_ERROR (Status)) {\r | |
100 | break;\r | |
101 | }\r | |
102 | Status = FfsFindSectionData (EFI_SECTION_GUID_DEFINED, FileHeader,\r | |
103 | &SectionData, &SectionDataSize);\r | |
104 | if (EFI_ERROR (Status)) {\r | |
105 | break;\r | |
106 | }\r | |
107 | Section = (EFI_COMMON_SECTION_HEADER *)(FileHeader + 1);\r | |
108 | Status = ExtractGuidedSectionGetInfo (Section, &DstBufferSize,\r | |
109 | &ScratchBufferSize, &SectionAttribute);\r | |
110 | if (EFI_ERROR (Status)) {\r | |
111 | break;\r | |
112 | }\r | |
113 | \r | |
114 | //\r | |
115 | // Allocate scratch buffer\r | |
116 | //\r | |
117 | ScratchBuffer = (VOID *)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));\r | |
118 | if (ScratchBuffer == NULL) {\r | |
119 | return EFI_OUT_OF_RESOURCES;\r | |
120 | }\r | |
121 | \r | |
122 | //\r | |
123 | // Allocate destination buffer, extra one page for adjustment\r | |
124 | //\r | |
125 | DstBuffer = (VOID *)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize));\r | |
126 | if (DstBuffer == NULL) {\r | |
127 | return EFI_OUT_OF_RESOURCES;\r | |
128 | }\r | |
129 | \r | |
130 | //\r | |
131 | // Call decompress function\r | |
132 | //\r | |
133 | Status = ExtractGuidedSectionDecode (Section, &DstBuffer, ScratchBuffer,\r | |
134 | &AuthenticationStatus);\r | |
135 | FreePages (ScratchBuffer, EFI_SIZE_TO_PAGES (ScratchBufferSize));\r | |
136 | if (EFI_ERROR (Status)) {\r | |
137 | goto FreeDstBuffer;\r | |
138 | }\r | |
139 | \r | |
140 | DEBUG ((DEBUG_INFO,\r | |
141 | "Processing compressed firmware volume (AuthenticationStatus == %x)\n",\r | |
142 | AuthenticationStatus));\r | |
143 | \r | |
144 | Status = FindFfsSectionInSections (DstBuffer, DstBufferSize,\r | |
145 | EFI_SECTION_FIRMWARE_VOLUME_IMAGE, &Section);\r | |
146 | if (EFI_ERROR (Status)) {\r | |
147 | goto FreeDstBuffer;\r | |
148 | }\r | |
149 | \r | |
150 | InnerFvHeader = (VOID *)(Section + 1);\r | |
151 | Status = MmCoreFfsFindMmDriver (InnerFvHeader);\r | |
152 | if (EFI_ERROR (Status)) {\r | |
153 | goto FreeDstBuffer;\r | |
154 | }\r | |
155 | } while (TRUE);\r | |
156 | \r | |
6b46d772 SV |
157 | for (Index = 0; Index < sizeof (mMmFileTypes) / sizeof (mMmFileTypes[0]); Index++) {\r |
158 | DEBUG ((DEBUG_INFO, "Check MmFileTypes - 0x%x\n", mMmFileTypes[Index]));\r | |
159 | FileType = mMmFileTypes[Index];\r | |
160 | FileHeader = NULL;\r | |
161 | do {\r | |
162 | Status = FfsFindNextFile (FileType, FwVolHeader, &FileHeader);\r | |
163 | if (!EFI_ERROR (Status)) {\r | |
164 | Status = FfsFindSectionData (EFI_SECTION_PE32, FileHeader, &Pe32Data, &Pe32DataSize);\r | |
165 | DEBUG ((DEBUG_INFO, "Find PE data - 0x%x\n", Pe32Data));\r | |
166 | DepexStatus = FfsFindSectionData (EFI_SECTION_MM_DEPEX, FileHeader, &Depex, &DepexSize);\r | |
167 | if (!EFI_ERROR (DepexStatus)) {\r | |
168 | MmAddToDriverList (FwVolHeader, Pe32Data, Pe32DataSize, Depex, DepexSize, &FileHeader->Name);\r | |
169 | }\r | |
170 | }\r | |
171 | } while (!EFI_ERROR (Status));\r | |
172 | }\r | |
173 | \r | |
d65e0e48 AB |
174 | return EFI_SUCCESS;\r |
175 | \r | |
176 | FreeDstBuffer:\r | |
177 | FreePages (DstBuffer, EFI_SIZE_TO_PAGES (DstBufferSize));\r | |
178 | \r | |
6b46d772 SV |
179 | return Status;\r |
180 | }\r |