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7130bcef SM |
1 | /** @file\r |
2 | Table Helper\r | |
3 | \r | |
16136f21 | 4 | Copyright (c) 2017 - 2021, Arm Limited. All rights reserved.<BR>\r |
f2bd39fb SM |
5 | \r |
6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
7130bcef SM |
7 | **/\r |
8 | \r | |
9 | #include <Protocol/AcpiTable.h>\r | |
10 | #include <Library/BaseLib.h>\r | |
11 | #include <Library/DebugLib.h>\r | |
12 | #include <Library/BaseMemoryLib.h>\r | |
13 | \r | |
14 | // Module specific include files.\r | |
15 | #include <AcpiTableGenerator.h>\r | |
16 | #include <ConfigurationManagerObject.h>\r | |
c1b53091 | 17 | #include <Library/TableHelperLib.h>\r |
7130bcef SM |
18 | #include <Protocol/ConfigurationManagerProtocol.h>\r |
19 | \r | |
20 | /** The GetCgfMgrInfo function gets the CM_STD_OBJ_CONFIGURATION_MANAGER_INFO\r | |
21 | object from the Configuration Manager.\r | |
22 | \r | |
23 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager protocol\r | |
24 | interface.\r | |
25 | @param [out] CfgMfrInfo Pointer to the Configuration Manager Info\r | |
26 | object structure.\r | |
27 | \r | |
28 | @retval EFI_SUCCESS The object is returned.\r | |
29 | @retval EFI_INVALID_PARAMETER The Object ID is invalid.\r | |
30 | @retval EFI_NOT_FOUND The requested Object is not found.\r | |
31 | @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r | |
32 | Manager is less than the Object size.\r | |
33 | **/\r | |
34 | EFI_STATUS\r | |
35 | EFIAPI\r | |
36 | GetCgfMgrInfo (\r | |
37 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,\r | |
38 | OUT CM_STD_OBJ_CONFIGURATION_MANAGER_INFO ** CfgMfrInfo\r | |
39 | )\r | |
40 | {\r | |
41 | EFI_STATUS Status;\r | |
42 | CM_OBJ_DESCRIPTOR CmObjectDesc;\r | |
43 | \r | |
44 | ASSERT (CfgMgrProtocol != NULL);\r | |
45 | ASSERT (CfgMfrInfo != NULL);\r | |
46 | \r | |
47 | *CfgMfrInfo = NULL;\r | |
48 | Status = CfgMgrProtocol->GetObject (\r | |
49 | CfgMgrProtocol,\r | |
50 | CREATE_CM_STD_OBJECT_ID (EStdObjCfgMgrInfo),\r | |
51 | CM_NULL_TOKEN,\r | |
52 | &CmObjectDesc\r | |
53 | );\r | |
54 | if (EFI_ERROR (Status)) {\r | |
55 | DEBUG ((\r | |
56 | DEBUG_ERROR,\r | |
57 | "ERROR: Failed to Get Configuration Manager Info. Status = %r\n",\r | |
58 | Status\r | |
59 | ));\r | |
60 | return Status;\r | |
61 | }\r | |
62 | \r | |
63 | if (CmObjectDesc.ObjectId != CREATE_CM_STD_OBJECT_ID (EStdObjCfgMgrInfo)) {\r | |
64 | DEBUG ((\r | |
65 | DEBUG_ERROR,\r | |
66 | "ERROR: EStdObjCfgMgrInfo: Invalid ObjectId = 0x%x, expected Id = 0x%x\n",\r | |
67 | CmObjectDesc.ObjectId,\r | |
68 | CREATE_CM_STD_OBJECT_ID (EStdObjCfgMgrInfo)\r | |
69 | ));\r | |
70 | ASSERT (FALSE);\r | |
71 | return EFI_INVALID_PARAMETER;\r | |
72 | }\r | |
73 | \r | |
74 | if (CmObjectDesc.Size <\r | |
75 | (sizeof (CM_STD_OBJ_CONFIGURATION_MANAGER_INFO) * CmObjectDesc.Count)) {\r | |
76 | DEBUG ((\r | |
77 | DEBUG_ERROR,\r | |
78 | "ERROR: EStdObjCfgMgrInfo: Buffer too small, size = 0x%x\n",\r | |
79 | CmObjectDesc.Size\r | |
80 | ));\r | |
81 | ASSERT (FALSE);\r | |
82 | return EFI_BAD_BUFFER_SIZE;\r | |
83 | }\r | |
84 | \r | |
85 | *CfgMfrInfo = (CM_STD_OBJ_CONFIGURATION_MANAGER_INFO*)CmObjectDesc.Data;\r | |
86 | return Status;\r | |
87 | }\r | |
88 | \r | |
89 | /** The AddAcpiHeader function updates the ACPI header structure pointed by\r | |
90 | the AcpiHeader. It utilizes the ACPI table Generator and the Configuration\r | |
91 | Manager protocol to obtain any information required for constructing the\r | |
92 | header.\r | |
93 | \r | |
94 | @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r | |
95 | protocol interface.\r | |
96 | @param [in] Generator Pointer to the ACPI table Generator.\r | |
97 | @param [in,out] AcpiHeader Pointer to the ACPI table header to be\r | |
98 | updated.\r | |
e12bdeb1 | 99 | @param [in] AcpiTableInfo Pointer to the ACPI table info structure.\r |
7130bcef SM |
100 | @param [in] Length Length of the ACPI table.\r |
101 | \r | |
102 | @retval EFI_SUCCESS The ACPI table is updated successfully.\r | |
103 | @retval EFI_INVALID_PARAMETER A parameter is invalid.\r | |
104 | @retval EFI_NOT_FOUND The required object information is not found.\r | |
105 | @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r | |
106 | Manager is less than the Object size for the\r | |
107 | requested object.\r | |
108 | **/\r | |
109 | EFI_STATUS\r | |
110 | EFIAPI\r | |
111 | AddAcpiHeader (\r | |
112 | IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,\r | |
113 | IN CONST ACPI_TABLE_GENERATOR * CONST Generator,\r | |
114 | IN OUT EFI_ACPI_DESCRIPTION_HEADER * CONST AcpiHeader,\r | |
e12bdeb1 | 115 | IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,\r |
7130bcef SM |
116 | IN CONST UINT32 Length\r |
117 | )\r | |
118 | {\r | |
119 | EFI_STATUS Status;\r | |
120 | CM_STD_OBJ_CONFIGURATION_MANAGER_INFO * CfgMfrInfo;\r | |
121 | \r | |
122 | ASSERT (CfgMgrProtocol != NULL);\r | |
123 | ASSERT (Generator != NULL);\r | |
124 | ASSERT (AcpiHeader != NULL);\r | |
25cf58a1 | 125 | ASSERT (AcpiTableInfo != NULL);\r |
7130bcef SM |
126 | ASSERT (Length >= sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r |
127 | \r | |
128 | if ((CfgMgrProtocol == NULL) ||\r | |
129 | (Generator == NULL) ||\r | |
130 | (AcpiHeader == NULL) ||\r | |
25cf58a1 | 131 | (AcpiTableInfo == NULL) ||\r |
7130bcef SM |
132 | (Length < sizeof (EFI_ACPI_DESCRIPTION_HEADER))\r |
133 | ) {\r | |
134 | return EFI_INVALID_PARAMETER;\r | |
135 | }\r | |
136 | \r | |
137 | Status = GetCgfMgrInfo (CfgMgrProtocol, &CfgMfrInfo);\r | |
138 | if (EFI_ERROR (Status)) {\r | |
139 | DEBUG ((\r | |
140 | DEBUG_ERROR,\r | |
141 | "ERROR: Failed to get Configuration Manager info. Status = %r\n",\r | |
142 | Status\r | |
143 | ));\r | |
144 | goto error_handler;\r | |
145 | }\r | |
146 | \r | |
147 | // UINT32 Signature\r | |
148 | AcpiHeader->Signature = Generator->AcpiTableSignature;\r | |
149 | // UINT32 Length\r | |
150 | AcpiHeader->Length = Length;\r | |
151 | // UINT8 Revision\r | |
e12bdeb1 | 152 | AcpiHeader->Revision = AcpiTableInfo->AcpiTableRevision;\r |
7130bcef SM |
153 | // UINT8 Checksum\r |
154 | AcpiHeader->Checksum = 0;\r | |
155 | \r | |
156 | // UINT8 OemId[6]\r | |
157 | CopyMem (AcpiHeader->OemId, CfgMfrInfo->OemId, sizeof (AcpiHeader->OemId));\r | |
158 | \r | |
159 | // UINT64 OemTableId\r | |
e12bdeb1 SM |
160 | if (AcpiTableInfo->OemTableId != 0) {\r |
161 | AcpiHeader->OemTableId = AcpiTableInfo->OemTableId;\r | |
162 | } else {\r | |
163 | AcpiHeader->OemTableId = SIGNATURE_32 (\r | |
164 | CfgMfrInfo->OemId[0],\r | |
165 | CfgMfrInfo->OemId[1],\r | |
166 | CfgMfrInfo->OemId[2],\r | |
167 | CfgMfrInfo->OemId[3]\r | |
168 | ) |\r | |
169 | ((UINT64)Generator->AcpiTableSignature << 32);\r | |
170 | }\r | |
7130bcef SM |
171 | \r |
172 | // UINT32 OemRevision\r | |
e12bdeb1 SM |
173 | if (AcpiTableInfo->OemRevision != 0) {\r |
174 | AcpiHeader->OemRevision = AcpiTableInfo->OemRevision;\r | |
175 | } else {\r | |
176 | AcpiHeader->OemRevision = CfgMfrInfo->Revision;\r | |
177 | }\r | |
7130bcef SM |
178 | \r |
179 | // UINT32 CreatorId\r | |
180 | AcpiHeader->CreatorId = Generator->CreatorId;\r | |
181 | // UINT32 CreatorRevision\r | |
182 | AcpiHeader->CreatorRevision = Generator->CreatorRevision;\r | |
183 | \r | |
184 | error_handler:\r | |
185 | return Status;\r | |
186 | }\r | |
c1b53091 KK |
187 | \r |
188 | /**\r | |
189 | Test and report if a duplicate entry exists in the given array of comparable\r | |
190 | elements.\r | |
191 | \r | |
192 | @param [in] Array Array of elements to test for duplicates.\r | |
193 | @param [in] Count Number of elements in Array.\r | |
194 | @param [in] ElementSize Size of an element in bytes\r | |
195 | @param [in] EqualTestFunction The function to call to check if any two\r | |
196 | elements are equal.\r | |
197 | \r | |
198 | @retval TRUE A duplicate element was found or one of\r | |
199 | the input arguments is invalid.\r | |
200 | @retval FALSE Every element in Array is unique.\r | |
201 | **/\r | |
202 | BOOLEAN\r | |
203 | EFIAPI\r | |
204 | FindDuplicateValue (\r | |
205 | IN CONST VOID * Array,\r | |
206 | IN CONST UINTN Count,\r | |
207 | IN CONST UINTN ElementSize,\r | |
208 | IN PFN_IS_EQUAL EqualTestFunction\r | |
209 | )\r | |
210 | {\r | |
211 | UINTN Index1;\r | |
212 | UINTN Index2;\r | |
213 | UINT8 * Element1;\r | |
214 | UINT8 * Element2;\r | |
215 | \r | |
216 | if (Array == NULL) {\r | |
217 | DEBUG ((DEBUG_ERROR, "ERROR: FindDuplicateValues: Array is NULL.\n"));\r | |
218 | return TRUE;\r | |
219 | }\r | |
220 | \r | |
221 | if (ElementSize == 0) {\r | |
222 | DEBUG ((DEBUG_ERROR, "ERROR: FindDuplicateValues: ElementSize is 0.\n"));\r | |
223 | return TRUE;\r | |
224 | }\r | |
225 | \r | |
226 | if (EqualTestFunction == NULL) {\r | |
227 | DEBUG ((\r | |
228 | DEBUG_ERROR,\r | |
229 | "ERROR: FindDuplicateValues: EqualTestFunction is NULL.\n"\r | |
230 | ));\r | |
231 | return TRUE;\r | |
232 | }\r | |
233 | \r | |
234 | if (Count < 2) {\r | |
235 | return FALSE;\r | |
236 | }\r | |
237 | \r | |
238 | for (Index1 = 0; Index1 < Count - 1; Index1++) {\r | |
239 | for (Index2 = Index1 + 1; Index2 < Count; Index2++) {\r | |
240 | Element1 = (UINT8*)Array + (Index1 * ElementSize);\r | |
241 | Element2 = (UINT8*)Array + (Index2 * ElementSize);\r | |
242 | \r | |
243 | if (EqualTestFunction (Element1, Element2, Index1, Index2)) {\r | |
244 | return TRUE;\r | |
245 | }\r | |
246 | }\r | |
247 | }\r | |
248 | return FALSE;\r | |
249 | }\r |