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6b46d772 SV |
1 | /**@file\r |
2 | \r | |
3 | Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
4 | Copyright (c) 2016 - 2018, 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 | |
27 | IN EFI_HANDLE FvHandle,\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 | |
33 | );\r | |
34 | \r | |
35 | BOOLEAN\r | |
36 | FvHasBeenProcessed (\r | |
37 | IN EFI_HANDLE FvHandle\r | |
38 | );\r | |
39 | \r | |
40 | VOID\r | |
41 | FvIsBeingProcesssed (\r | |
42 | IN EFI_HANDLE FvHandle\r | |
43 | );\r | |
44 | \r | |
45 | EFI_STATUS\r | |
46 | MmCoreFfsFindMmDriver (\r | |
47 | IN EFI_FIRMWARE_VOLUME_HEADER *FwVolHeader\r | |
48 | )\r | |
49 | /*++\r | |
50 | \r | |
51 | Routine Description:\r | |
52 | Given the pointer to the Firmware Volume Header find the\r | |
53 | MM driver and return it's PE32 image.\r | |
54 | \r | |
55 | Arguments:\r | |
56 | FwVolHeader - Pointer to memory mapped FV\r | |
57 | \r | |
58 | Returns:\r | |
59 | other - Failure\r | |
60 | \r | |
61 | --*/\r | |
62 | {\r | |
d65e0e48 AB |
63 | EFI_STATUS Status;\r |
64 | EFI_STATUS DepexStatus;\r | |
65 | EFI_FFS_FILE_HEADER *FileHeader;\r | |
66 | EFI_FV_FILETYPE FileType;\r | |
67 | VOID *Pe32Data;\r | |
68 | UINTN Pe32DataSize;\r | |
69 | VOID *Depex;\r | |
70 | UINTN DepexSize;\r | |
71 | UINTN Index;\r | |
72 | EFI_COMMON_SECTION_HEADER *Section;\r | |
73 | VOID *SectionData;\r | |
74 | UINTN SectionDataSize;\r | |
75 | UINT32 DstBufferSize;\r | |
76 | VOID *ScratchBuffer;\r | |
77 | UINT32 ScratchBufferSize;\r | |
78 | VOID *DstBuffer;\r | |
79 | UINT16 SectionAttribute;\r | |
80 | UINT32 AuthenticationStatus;\r | |
81 | EFI_FIRMWARE_VOLUME_HEADER *InnerFvHeader;\r | |
6b46d772 SV |
82 | \r |
83 | DEBUG ((DEBUG_INFO, "MmCoreFfsFindMmDriver - 0x%x\n", FwVolHeader));\r | |
84 | \r | |
85 | if (FvHasBeenProcessed (FwVolHeader)) {\r | |
86 | return EFI_SUCCESS;\r | |
87 | }\r | |
88 | \r | |
89 | FvIsBeingProcesssed (FwVolHeader);\r | |
90 | \r | |
d65e0e48 AB |
91 | //\r |
92 | // First check for encapsulated compressed firmware volumes\r | |
93 | //\r | |
94 | FileHeader = NULL;\r | |
95 | do {\r | |
96 | Status = FfsFindNextFile (EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE,\r | |
97 | FwVolHeader, &FileHeader);\r | |
98 | if (EFI_ERROR (Status)) {\r | |
99 | break;\r | |
100 | }\r | |
101 | Status = FfsFindSectionData (EFI_SECTION_GUID_DEFINED, FileHeader,\r | |
102 | &SectionData, &SectionDataSize);\r | |
103 | if (EFI_ERROR (Status)) {\r | |
104 | break;\r | |
105 | }\r | |
106 | Section = (EFI_COMMON_SECTION_HEADER *)(FileHeader + 1);\r | |
107 | Status = ExtractGuidedSectionGetInfo (Section, &DstBufferSize,\r | |
108 | &ScratchBufferSize, &SectionAttribute);\r | |
109 | if (EFI_ERROR (Status)) {\r | |
110 | break;\r | |
111 | }\r | |
112 | \r | |
113 | //\r | |
114 | // Allocate scratch buffer\r | |
115 | //\r | |
116 | ScratchBuffer = (VOID *)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (ScratchBufferSize));\r | |
117 | if (ScratchBuffer == NULL) {\r | |
118 | return EFI_OUT_OF_RESOURCES;\r | |
119 | }\r | |
120 | \r | |
121 | //\r | |
122 | // Allocate destination buffer, extra one page for adjustment\r | |
123 | //\r | |
124 | DstBuffer = (VOID *)(UINTN)AllocatePages (EFI_SIZE_TO_PAGES (DstBufferSize));\r | |
125 | if (DstBuffer == NULL) {\r | |
126 | return EFI_OUT_OF_RESOURCES;\r | |
127 | }\r | |
128 | \r | |
129 | //\r | |
130 | // Call decompress function\r | |
131 | //\r | |
132 | Status = ExtractGuidedSectionDecode (Section, &DstBuffer, ScratchBuffer,\r | |
133 | &AuthenticationStatus);\r | |
134 | FreePages (ScratchBuffer, EFI_SIZE_TO_PAGES (ScratchBufferSize));\r | |
135 | if (EFI_ERROR (Status)) {\r | |
136 | goto FreeDstBuffer;\r | |
137 | }\r | |
138 | \r | |
139 | DEBUG ((DEBUG_INFO,\r | |
140 | "Processing compressed firmware volume (AuthenticationStatus == %x)\n",\r | |
141 | AuthenticationStatus));\r | |
142 | \r | |
143 | Status = FindFfsSectionInSections (DstBuffer, DstBufferSize,\r | |
144 | EFI_SECTION_FIRMWARE_VOLUME_IMAGE, &Section);\r | |
145 | if (EFI_ERROR (Status)) {\r | |
146 | goto FreeDstBuffer;\r | |
147 | }\r | |
148 | \r | |
149 | InnerFvHeader = (VOID *)(Section + 1);\r | |
150 | Status = MmCoreFfsFindMmDriver (InnerFvHeader);\r | |
151 | if (EFI_ERROR (Status)) {\r | |
152 | goto FreeDstBuffer;\r | |
153 | }\r | |
154 | } while (TRUE);\r | |
155 | \r | |
6b46d772 SV |
156 | for (Index = 0; Index < sizeof (mMmFileTypes) / sizeof (mMmFileTypes[0]); Index++) {\r |
157 | DEBUG ((DEBUG_INFO, "Check MmFileTypes - 0x%x\n", mMmFileTypes[Index]));\r | |
158 | FileType = mMmFileTypes[Index];\r | |
159 | FileHeader = NULL;\r | |
160 | do {\r | |
161 | Status = FfsFindNextFile (FileType, FwVolHeader, &FileHeader);\r | |
162 | if (!EFI_ERROR (Status)) {\r | |
163 | Status = FfsFindSectionData (EFI_SECTION_PE32, FileHeader, &Pe32Data, &Pe32DataSize);\r | |
164 | DEBUG ((DEBUG_INFO, "Find PE data - 0x%x\n", Pe32Data));\r | |
165 | DepexStatus = FfsFindSectionData (EFI_SECTION_MM_DEPEX, FileHeader, &Depex, &DepexSize);\r | |
166 | if (!EFI_ERROR (DepexStatus)) {\r | |
167 | MmAddToDriverList (FwVolHeader, Pe32Data, Pe32DataSize, Depex, DepexSize, &FileHeader->Name);\r | |
168 | }\r | |
169 | }\r | |
170 | } while (!EFI_ERROR (Status));\r | |
171 | }\r | |
172 | \r | |
d65e0e48 AB |
173 | return EFI_SUCCESS;\r |
174 | \r | |
175 | FreeDstBuffer:\r | |
176 | FreePages (DstBuffer, EFI_SIZE_TO_PAGES (DstBufferSize));\r | |
177 | \r | |
6b46d772 SV |
178 | return Status;\r |
179 | }\r |