]>
Commit | Line | Data |
---|---|---|
3356211b OM |
1 | /** @file\r |
2 | *\r | |
da7dd714 | 3 | * Copyright (c) 2014-2015, ARM Limited. All rights reserved.\r |
3356211b | 4 | *\r |
878b807a | 5 | * SPDX-License-Identifier: BSD-2-Clause-Patent\r |
3356211b OM |
6 | *\r |
7 | **/\r | |
8 | \r | |
9 | #include <Uefi.h>\r | |
10 | \r | |
11 | #include <Library/AcpiLib.h>\r | |
12 | #include <Library/DebugLib.h>\r | |
13 | #include <Library/UefiBootServicesTableLib.h>\r | |
14 | \r | |
15 | #include <Protocol/AcpiTable.h>\r | |
16 | #include <Protocol/FirmwareVolume2.h>\r | |
17 | \r | |
18 | #include <IndustryStandard/Acpi.h>\r | |
19 | \r | |
20 | /**\r | |
da7dd714 OM |
21 | Locate and Install the ACPI tables from the Firmware Volume if it verifies\r |
22 | the function condition.\r | |
3356211b | 23 | \r |
da7dd714 OM |
24 | @param AcpiFile Guid of the ACPI file into the Firmware Volume\r |
25 | @param CheckAcpiTableFunction Function that checks if the ACPI table should be installed\r | |
3356211b | 26 | \r |
da7dd714 OM |
27 | @return EFI_SUCCESS The function completed successfully.\r |
28 | @return EFI_NOT_FOUND The protocol could not be located.\r | |
29 | @return EFI_OUT_OF_RESOURCES There are not enough resources to find the protocol.\r | |
3356211b OM |
30 | \r |
31 | **/\r | |
32 | EFI_STATUS\r | |
da7dd714 OM |
33 | LocateAndInstallAcpiFromFvConditional (\r |
34 | IN CONST EFI_GUID* AcpiFile,\r | |
35 | IN EFI_LOCATE_ACPI_CHECK CheckAcpiTableFunction\r | |
3356211b OM |
36 | )\r |
37 | {\r | |
38 | EFI_STATUS Status;\r | |
39 | EFI_ACPI_TABLE_PROTOCOL *AcpiProtocol;\r | |
40 | EFI_HANDLE *HandleBuffer;\r | |
41 | UINTN NumberOfHandles;\r | |
42 | UINT32 FvStatus;\r | |
43 | UINTN Index;\r | |
44 | EFI_FIRMWARE_VOLUME2_PROTOCOL *FvInstance;\r | |
45 | INTN SectionInstance;\r | |
46 | UINTN SectionSize;\r | |
47 | EFI_ACPI_COMMON_HEADER *AcpiTable;\r | |
48 | UINTN AcpiTableSize;\r | |
49 | UINTN AcpiTableKey;\r | |
da7dd714 | 50 | BOOLEAN Valid;\r |
3356211b OM |
51 | \r |
52 | // Ensure the ACPI Table is present\r | |
53 | Status = gBS->LocateProtocol (\r | |
54 | &gEfiAcpiTableProtocolGuid,\r | |
55 | NULL,\r | |
56 | (VOID**)&AcpiProtocol\r | |
57 | );\r | |
58 | if (EFI_ERROR (Status)) {\r | |
59 | return Status;\r | |
60 | }\r | |
61 | \r | |
62 | FvStatus = 0;\r | |
63 | SectionInstance = 0;\r | |
64 | \r | |
65 | // Locate all the Firmware Volume protocols.\r | |
66 | Status = gBS->LocateHandleBuffer (\r | |
67 | ByProtocol,\r | |
68 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
69 | NULL,\r | |
70 | &NumberOfHandles,\r | |
71 | &HandleBuffer\r | |
72 | );\r | |
73 | if (EFI_ERROR (Status)) {\r | |
74 | return Status;\r | |
75 | }\r | |
76 | \r | |
77 | // Looking for FV with ACPI storage file\r | |
78 | for (Index = 0; Index < NumberOfHandles; Index++) {\r | |
79 | //\r | |
80 | // Get the protocol on this handle\r | |
81 | // This should not fail because of LocateHandleBuffer\r | |
82 | //\r | |
83 | Status = gBS->HandleProtocol (\r | |
84 | HandleBuffer[Index],\r | |
85 | &gEfiFirmwareVolume2ProtocolGuid,\r | |
86 | (VOID**) &FvInstance\r | |
87 | );\r | |
88 | if (EFI_ERROR (Status)) {\r | |
89 | goto FREE_HANDLE_BUFFER;\r | |
90 | }\r | |
91 | \r | |
92 | while (Status == EFI_SUCCESS) {\r | |
93 | // AcpiTable must be allocated by ReadSection (ie: AcpiTable == NULL)\r | |
94 | AcpiTable = NULL;\r | |
95 | \r | |
96 | // See if it has the ACPI storage file\r | |
97 | Status = FvInstance->ReadSection (\r | |
98 | FvInstance,\r | |
99 | AcpiFile,\r | |
100 | EFI_SECTION_RAW,\r | |
101 | SectionInstance,\r | |
102 | (VOID**) &AcpiTable,\r | |
103 | &SectionSize,\r | |
104 | &FvStatus\r | |
105 | );\r | |
106 | if (!EFI_ERROR (Status)) {\r | |
107 | AcpiTableKey = 0;\r | |
108 | AcpiTableSize = ((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTable)->Length;\r | |
109 | ASSERT (SectionSize >= AcpiTableSize);\r | |
110 | \r | |
a1878955 | 111 | DEBUG ((DEBUG_ERROR, "- Found '%c%c%c%c' ACPI Table\n",\r |
3356211b OM |
112 | (((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTable)->Signature & 0xFF),\r |
113 | ((((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTable)->Signature >> 8) & 0xFF),\r | |
114 | ((((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTable)->Signature >> 16) & 0xFF),\r | |
115 | ((((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTable)->Signature >> 24) & 0xFF)));\r | |
116 | \r | |
da7dd714 OM |
117 | // Is the ACPI table valid?\r |
118 | if (CheckAcpiTableFunction) {\r | |
119 | Valid = CheckAcpiTableFunction ((EFI_ACPI_DESCRIPTION_HEADER *)AcpiTable);\r | |
120 | } else {\r | |
121 | Valid = TRUE;\r | |
122 | }\r | |
123 | \r | |
3356211b | 124 | // Install the ACPI Table\r |
da7dd714 OM |
125 | if (Valid) {\r |
126 | Status = AcpiProtocol->InstallAcpiTable (\r | |
127 | AcpiProtocol,\r | |
128 | AcpiTable,\r | |
129 | AcpiTableSize,\r | |
130 | &AcpiTableKey\r | |
131 | );\r | |
132 | }\r | |
133 | \r | |
3356211b OM |
134 | // Free memory allocated by ReadSection\r |
135 | gBS->FreePool (AcpiTable);\r | |
136 | \r | |
137 | if (EFI_ERROR (Status)) {\r | |
138 | break;\r | |
139 | }\r | |
140 | \r | |
141 | // Increment the section instance\r | |
142 | SectionInstance++;\r | |
143 | }\r | |
144 | }\r | |
145 | }\r | |
146 | \r | |
147 | FREE_HANDLE_BUFFER:\r | |
148 | //\r | |
149 | // Free any allocated buffers\r | |
150 | //\r | |
151 | gBS->FreePool (HandleBuffer);\r | |
152 | \r | |
153 | return EFI_SUCCESS;\r | |
154 | }\r | |
da7dd714 OM |
155 | \r |
156 | /**\r | |
157 | Locate and Install the ACPI tables from the Firmware Volume\r | |
158 | \r | |
159 | @param AcpiFile Guid of the ACPI file into the Firmware Volume\r | |
160 | \r | |
161 | @return EFI_SUCCESS The function completed successfully.\r | |
162 | @return EFI_NOT_FOUND The protocol could not be located.\r | |
163 | @return EFI_OUT_OF_RESOURCES There are not enough resources to find the protocol.\r | |
164 | \r | |
165 | **/\r | |
166 | EFI_STATUS\r | |
167 | LocateAndInstallAcpiFromFv (\r | |
168 | IN CONST EFI_GUID* AcpiFile\r | |
169 | )\r | |
170 | {\r | |
171 | return LocateAndInstallAcpiFromFvConditional (AcpiFile, NULL);\r | |
172 | }\r |