| 5f55c700 |
1 | /** @file\r |
| 2 | ACPI Table Protocol Implementation\r |
| 3 | \r |
| 4 | Copyright (c) 2006, 2008, 2009, Intel Corporation<BR>\r |
| 5 | All rights reserved. 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 | //\r |
| 16 | // Includes\r |
| 17 | //\r |
| 18 | #include "AcpiTable.h"\r |
| 19 | \r |
| 20 | \r |
| 21 | /**\r |
| 22 | This function adds an ACPI table to the table list. It will detect FACS and\r |
| 23 | allocate the correct type of memory and properly align the table.\r |
| 24 | \r |
| 25 | @param AcpiTableInstance Instance of the protocol.\r |
| 26 | @param Table Table to add.\r |
| 27 | @param Checksum Does the table require checksumming.\r |
| 28 | @param Version The version of the list to add the table to.\r |
| 29 | @param Handle Pointer for returning the handle.\r |
| 30 | \r |
| 31 | @return EFI_SUCCESS The function completed successfully.\r |
| 32 | @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.\r |
| 33 | @return EFI_ABORTED The table is a duplicate of a table that is required\r |
| 34 | to be unique.\r |
| 35 | \r |
| 36 | **/\r |
| 37 | EFI_STATUS\r |
| 38 | AddTableToList (\r |
| 39 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 40 | IN VOID *Table,\r |
| 41 | IN BOOLEAN Checksum,\r |
| 42 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 43 | OUT UINTN *Handle\r |
| 44 | );\r |
| 45 | \r |
| 46 | /**\r |
| 47 | This function finds and removes the table specified by the handle.\r |
| 48 | \r |
| 49 | @param AcpiTableInstance Instance of the protocol.\r |
| 50 | @param Version Bitmask of which versions to remove.\r |
| 51 | @param Handle Table to remove.\r |
| 52 | \r |
| 53 | @return EFI_SUCCESS The function completed successfully.\r |
| 54 | @return EFI_ABORTED An error occurred.\r |
| 55 | @return EFI_NOT_FOUND Handle not found in table list.\r |
| 56 | \r |
| 57 | **/\r |
| 58 | EFI_STATUS\r |
| 59 | RemoveTableFromList (\r |
| 60 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 61 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 62 | IN UINTN Handle\r |
| 63 | );\r |
| 64 | \r |
| 65 | /**\r |
| 66 | This function calculates and updates an UINT8 checksum.\r |
| 67 | \r |
| 68 | @param Buffer Pointer to buffer to checksum\r |
| 69 | @param Size Number of bytes to checksum\r |
| 70 | @param ChecksumOffset Offset to place the checksum result in\r |
| 71 | \r |
| 72 | @return EFI_SUCCESS The function completed successfully.\r |
| 73 | \r |
| 74 | **/\r |
| 75 | EFI_STATUS\r |
| 76 | AcpiPlatformChecksum (\r |
| 77 | IN VOID *Buffer,\r |
| 78 | IN UINTN Size,\r |
| 79 | IN UINTN ChecksumOffset\r |
| 80 | );\r |
| 81 | \r |
| 82 | /**\r |
| 83 | Checksum all versions of the common tables, RSDP, RSDT, XSDT.\r |
| 84 | \r |
| 85 | @param AcpiTableInstance Protocol instance private data.\r |
| 86 | \r |
| 87 | @return EFI_SUCCESS The function completed successfully.\r |
| 88 | \r |
| 89 | **/\r |
| 90 | EFI_STATUS\r |
| 91 | ChecksumCommonTables (\r |
| 92 | IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance\r |
| 93 | );\r |
| 94 | \r |
| 95 | //\r |
| 96 | // Protocol function implementations.\r |
| 97 | //\r |
| 98 | \r |
| 99 | /**\r |
| 100 | This function adds, removes, or updates ACPI tables. If the address is not\r |
| 101 | null and the handle value is null, the table is added. If both the address and \r |
| 102 | handle are not null, the table at handle is updated with the table at address.\r |
| 103 | If the address is null and the handle is not, the table at handle is deleted.\r |
| 104 | \r |
| 105 | @param AcpiTableInstance Instance of the protocol.\r |
| 106 | @param Table Pointer to a table.\r |
| 107 | @param Checksum Boolean indicating if the checksum should be calculated.\r |
| 108 | @param Version Version(s) to set.\r |
| 109 | @param Handle Handle of the table.\r |
| 110 | \r |
| 111 | @return EFI_SUCCESS The function completed successfully.\r |
| 112 | @return EFI_INVALID_PARAMETER Both the Table and *Handle were NULL.\r |
| 113 | @return EFI_ABORTED Could not complete the desired request.\r |
| 114 | \r |
| 115 | **/\r |
| 116 | EFI_STATUS\r |
| 117 | EFIAPI\r |
| 118 | SetAcpiTable (\r |
| 119 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 120 | IN VOID *Table OPTIONAL,\r |
| 121 | IN BOOLEAN Checksum,\r |
| 122 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 123 | IN OUT UINTN *Handle\r |
| 124 | )\r |
| 125 | {\r |
| 126 | UINTN SavedHandle;\r |
| 127 | EFI_STATUS Status;\r |
| 128 | \r |
| 129 | //\r |
| 130 | // Check for invalid input parameters\r |
| 131 | //\r |
| 132 | ASSERT (Handle);\r |
| 133 | \r |
| 134 | //\r |
| 135 | // Initialize locals\r |
| 136 | //\r |
| 137 | //\r |
| 138 | // Determine desired action\r |
| 139 | //\r |
| 140 | if (*Handle == 0) {\r |
| 141 | if (Table == NULL) {\r |
| 142 | //\r |
| 143 | // Invalid parameter combination\r |
| 144 | //\r |
| 145 | return EFI_INVALID_PARAMETER;\r |
| 146 | } else {\r |
| 147 | //\r |
| 148 | // Add table\r |
| 149 | //\r |
| 150 | Status = AddTableToList (AcpiTableInstance, Table, Checksum, Version, Handle);\r |
| 151 | }\r |
| 152 | } else {\r |
| 153 | if (Table != NULL) {\r |
| 154 | //\r |
| 155 | // Update table\r |
| 156 | //\r |
| 157 | //\r |
| 158 | // Delete the table list entry\r |
| 159 | //\r |
| 160 | Status = RemoveTableFromList (AcpiTableInstance, Version, *Handle);\r |
| 161 | if (EFI_ERROR (Status)) {\r |
| 162 | //\r |
| 163 | // Should not get an error here ever, but abort if we do.\r |
| 164 | //\r |
| 165 | return EFI_ABORTED;\r |
| 166 | }\r |
| 167 | //\r |
| 168 | // Set the handle to replace the table at the same handle\r |
| 169 | //\r |
| 170 | SavedHandle = AcpiTableInstance->CurrentHandle;\r |
| 171 | AcpiTableInstance->CurrentHandle = *Handle;\r |
| 172 | \r |
| 173 | //\r |
| 174 | // Add the table\r |
| 175 | //\r |
| 176 | Status = AddTableToList (AcpiTableInstance, Table, Checksum, Version, Handle);\r |
| 177 | \r |
| 178 | //\r |
| 179 | // Restore the saved current handle\r |
| 180 | //\r |
| 181 | AcpiTableInstance->CurrentHandle = SavedHandle;\r |
| 182 | } else {\r |
| 183 | //\r |
| 184 | // Delete table\r |
| 185 | //\r |
| 186 | Status = RemoveTableFromList (AcpiTableInstance, Version, *Handle);\r |
| 187 | }\r |
| 188 | }\r |
| 189 | \r |
| 190 | if (EFI_ERROR (Status)) {\r |
| 191 | //\r |
| 192 | // Should not get an error here ever, but abort if we do.\r |
| 193 | //\r |
| 194 | return EFI_ABORTED;\r |
| 195 | }\r |
| 196 | //\r |
| 197 | // Done\r |
| 198 | //\r |
| 199 | return EFI_SUCCESS;\r |
| 200 | }\r |
| 201 | \r |
| 202 | /**\r |
| 203 | This function publishes the specified versions of the ACPI tables by\r |
| 204 | installing EFI configuration table entries for them. Any combination of\r |
| 205 | table versions can be published.\r |
| 206 | \r |
| 207 | @param AcpiTableInstance Instance of the protocol.\r |
| 208 | @param Version Version(s) to publish.\r |
| 209 | \r |
| 210 | @return EFI_SUCCESS The function completed successfully.\r |
| 211 | @return EFI_ABORTED The function could not complete successfully.\r |
| 212 | \r |
| 213 | **/\r |
| 214 | EFI_STATUS\r |
| 215 | EFIAPI\r |
| 216 | PublishTables (\r |
| 217 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 218 | IN EFI_ACPI_TABLE_VERSION Version\r |
| 219 | )\r |
| 220 | {\r |
| 221 | EFI_STATUS Status;\r |
| 222 | UINT32 *CurrentRsdtEntry;\r |
| 223 | VOID *CurrentXsdtEntry;\r |
| 224 | UINT64 Buffer64;\r |
| 225 | \r |
| 226 | //\r |
| 227 | // Reorder tables as some operating systems don't seem to find the\r |
| 228 | // FADT correctly if it is not in the first few entries\r |
| 229 | //\r |
| 230 | \r |
| 231 | //\r |
| 232 | // Add FADT as the first entry\r |
| 233 | //\r |
| 234 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 235 | CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiTableInstance->Rsdt1 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r |
| 236 | *CurrentRsdtEntry = (UINT32) (UINTN) AcpiTableInstance->Fadt1;\r |
| 237 | }\r |
| 238 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 239 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 240 | CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiTableInstance->Rsdt3 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r |
| 241 | *CurrentRsdtEntry = (UINT32) (UINTN) AcpiTableInstance->Fadt3;\r |
| 242 | CurrentXsdtEntry = (VOID *) ((UINT8 *) AcpiTableInstance->Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER));\r |
| 243 | //\r |
| 244 | // Add entry to XSDT, XSDT expects 64 bit pointers, but\r |
| 245 | // the table pointers in XSDT are not aligned on 8 byte boundary.\r |
| 246 | //\r |
| 247 | Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Fadt3;\r |
| 248 | CopyMem (\r |
| 249 | CurrentXsdtEntry,\r |
| 250 | &Buffer64,\r |
| 251 | sizeof (UINT64)\r |
| 252 | );\r |
| 253 | }\r |
| 254 | \r |
| 255 | //\r |
| 256 | // Do checksum again because Dsdt/Xsdt is updated.\r |
| 257 | //\r |
| 258 | ChecksumCommonTables (AcpiTableInstance);\r |
| 259 | \r |
| 260 | //\r |
| 261 | // Add the RSD_PTR to the system table and store that we have installed the\r |
| 262 | // tables.\r |
| 263 | //\r |
| 264 | if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) &&\r |
| 265 | !AcpiTableInstance->TablesInstalled1) {\r |
| 266 | Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiTableInstance->Rsdp1);\r |
| 267 | if (EFI_ERROR (Status)) {\r |
| 268 | return EFI_ABORTED;\r |
| 269 | }\r |
| 270 | \r |
| 271 | AcpiTableInstance->TablesInstalled1 = TRUE;\r |
| 272 | }\r |
| 273 | \r |
| 274 | if (((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 275 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) &&\r |
| 276 | !AcpiTableInstance->TablesInstalled3) {\r |
| 277 | Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiTableInstance->Rsdp3);\r |
| 278 | if (EFI_ERROR (Status)) {\r |
| 279 | return EFI_ABORTED;\r |
| 280 | }\r |
| 281 | \r |
| 282 | AcpiTableInstance->TablesInstalled3= TRUE;\r |
| 283 | }\r |
| 284 | \r |
| 285 | return EFI_SUCCESS;\r |
| 286 | }\r |
| 287 | \r |
| 288 | \r |
| 289 | /**\r |
| 290 | Installs an ACPI table into the RSDT/XSDT.\r |
| 291 | \r |
| 292 | @param This Protocol instance pointer.\r |
| 293 | @param AcpiTableBuffer A pointer to a buffer containing the ACPI table to be installed.\r |
| 294 | @param AcpiTableBufferSize Specifies the size, in bytes, of the AcpiTableBuffer buffer.\r |
| 295 | @param TableKey Reurns a key to refer to the ACPI table.\r |
| 296 | \r |
| 297 | @return EFI_SUCCESS The table was successfully inserted.\r |
| 298 | @return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableKey is NULL, or AcpiTableBufferSize \r |
| 299 | and the size field embedded in the ACPI table pointed to by AcpiTableBuffer\r |
| 300 | are not in sync.\r |
| 301 | @return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.\r |
| 302 | \r |
| 303 | **/\r |
| 304 | EFI_STATUS\r |
| 305 | EFIAPI\r |
| 306 | InstallAcpiTable (\r |
| 307 | IN CONST EFI_ACPI_TABLE_PROTOCOL *This,\r |
| 308 | IN CONST VOID *AcpiTableBuffer,\r |
| 309 | IN UINTN AcpiTableBufferSize,\r |
| 310 | OUT UINTN *TableKey\r |
| 311 | )\r |
| 312 | {\r |
| 313 | EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;\r |
| 314 | EFI_STATUS Status;\r |
| 315 | VOID *AcpiTableBufferConst;\r |
| 316 | \r |
| 317 | //\r |
| 318 | // Check for invalid input parameters\r |
| 319 | //\r |
| 320 | if ((AcpiTableBuffer == NULL) || (TableKey == NULL)\r |
| 321 | || (((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTableBuffer)->Length != AcpiTableBufferSize)) {\r |
| 322 | return EFI_INVALID_PARAMETER;\r |
| 323 | }\r |
| 324 | \r |
| 325 | //\r |
| 326 | // Get the instance of the ACPI table protocol\r |
| 327 | //\r |
| 328 | AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);\r |
| 329 | \r |
| 330 | //\r |
| 331 | // Install the ACPI table\r |
| 332 | //\r |
| 333 | AcpiTableBufferConst = AllocateCopyPool (AcpiTableBufferSize,AcpiTableBuffer);\r |
| 334 | *TableKey = 0;\r |
| 335 | Status = SetAcpiTable (\r |
| 336 | AcpiTableInstance,\r |
| 337 | AcpiTableBufferConst,\r |
| 338 | FALSE,\r |
| 46a989f7 |
339 | EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0,\r |
| 5f55c700 |
340 | TableKey\r |
| 341 | );\r |
| 342 | if (!EFI_ERROR (Status)) {\r |
| 343 | Status = PublishTables (\r |
| 344 | AcpiTableInstance,\r |
| 46a989f7 |
345 | EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0\r |
| 5f55c700 |
346 | );\r |
| 347 | }\r |
| 348 | FreePool (AcpiTableBufferConst);\r |
| 349 | \r |
| 350 | return Status;\r |
| 351 | }\r |
| 352 | \r |
| 353 | \r |
| 354 | /**\r |
| 355 | Removes an ACPI table from the RSDT/XSDT.\r |
| 356 | \r |
| 357 | @param This Protocol instance pointer.\r |
| 358 | @param TableKey Specifies the table to uninstall. The key was returned from InstallAcpiTable().\r |
| 359 | \r |
| 360 | @return EFI_SUCCESS The table was successfully uninstalled.\r |
| 361 | @return EFI_NOT_FOUND TableKey does not refer to a valid key for a table entry.\r |
| 362 | \r |
| 363 | **/\r |
| 364 | EFI_STATUS\r |
| 365 | EFIAPI\r |
| 366 | UninstallAcpiTable (\r |
| 367 | IN CONST EFI_ACPI_TABLE_PROTOCOL *This,\r |
| 368 | IN UINTN TableKey\r |
| 369 | )\r |
| 370 | {\r |
| 371 | EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;\r |
| 372 | EFI_STATUS Status;\r |
| 373 | \r |
| 374 | //\r |
| 375 | // Get the instance of the ACPI table protocol\r |
| 376 | //\r |
| 377 | AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);\r |
| 378 | \r |
| 379 | //\r |
| 380 | // Uninstall the ACPI table\r |
| 381 | //\r |
| 382 | Status = SetAcpiTable (\r |
| 383 | AcpiTableInstance,\r |
| 384 | NULL,\r |
| 385 | FALSE,\r |
| 46a989f7 |
386 | EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0,\r |
| 5f55c700 |
387 | &TableKey\r |
| 388 | );\r |
| 389 | if (!EFI_ERROR (Status)) {\r |
| 390 | Status = PublishTables (\r |
| 391 | AcpiTableInstance,\r |
| 46a989f7 |
392 | EFI_ACPI_TABLE_VERSION_1_0B | EFI_ACPI_TABLE_VERSION_2_0 | EFI_ACPI_TABLE_VERSION_3_0\r |
| 5f55c700 |
393 | );\r |
| 394 | }\r |
| 395 | \r |
| 396 | if (EFI_ERROR (Status)) {\r |
| 397 | return EFI_NOT_FOUND;\r |
| 398 | } else {\r |
| 399 | return EFI_SUCCESS;\r |
| 400 | }\r |
| 401 | }\r |
| 402 | \r |
| 403 | \r |
| 404 | /**\r |
| 405 | This function adds an ACPI table to the table list. It will detect FACS and\r |
| 406 | allocate the correct type of memory and properly align the table.\r |
| 407 | \r |
| 408 | @param AcpiTableInstance Instance of the protocol.\r |
| 409 | @param Table Table to add.\r |
| 410 | @param Checksum Does the table require checksumming.\r |
| 411 | @param Version The version of the list to add the table to.\r |
| 412 | @param Handle Pointer for returning the handle.\r |
| 413 | \r |
| 414 | @return EFI_SUCCESS The function completed successfully.\r |
| 415 | @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.\r |
| 416 | @return EFI_ABORTED The table is a duplicate of a table that is required\r |
| 417 | to be unique.\r |
| 418 | \r |
| 419 | **/\r |
| 420 | EFI_STATUS\r |
| 421 | AddTableToList (\r |
| 422 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 423 | IN VOID *Table,\r |
| 424 | IN BOOLEAN Checksum,\r |
| 425 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 426 | OUT UINTN *Handle\r |
| 427 | )\r |
| 428 | {\r |
| 429 | EFI_STATUS Status;\r |
| 430 | EFI_ACPI_TABLE_LIST *CurrentTableList;\r |
| 431 | UINT32 CurrentTableSignature;\r |
| 432 | UINT32 CurrentTableSize;\r |
| 433 | UINT32 *CurrentRsdtEntry;\r |
| 434 | VOID *CurrentXsdtEntry;\r |
| 435 | UINT64 Buffer64;\r |
| 436 | BOOLEAN AddToRsdt;\r |
| 437 | \r |
| 438 | //\r |
| 439 | // Check for invalid input parameters\r |
| 440 | //\r |
| 441 | ASSERT (AcpiTableInstance);\r |
| 442 | ASSERT (Table);\r |
| 443 | ASSERT (Handle);\r |
| 444 | \r |
| 445 | //\r |
| 446 | // Init locals\r |
| 447 | //\r |
| 448 | AddToRsdt = TRUE;\r |
| 449 | \r |
| 450 | //\r |
| 451 | // Create a new list entry\r |
| 452 | //\r |
| 453 | CurrentTableList = AllocatePool (sizeof (EFI_ACPI_TABLE_LIST));\r |
| 454 | ASSERT (CurrentTableList);\r |
| 455 | \r |
| 456 | //\r |
| 457 | // Determine table type and size\r |
| 458 | //\r |
| 459 | CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table)->Signature;\r |
| 460 | CurrentTableSize = ((EFI_ACPI_COMMON_HEADER *) Table)->Length;\r |
| 461 | \r |
| 462 | //\r |
| 463 | // Allocate a buffer for the table. All tables are allocated in the lower 32 bits of address space\r |
| 464 | // for backwards compatibility with ACPI 1.0 OS.\r |
| 465 | //\r |
| 466 | // This is done because ACPI 1.0 pointers are 32 bit values.\r |
| 467 | // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.\r |
| 468 | // There is no architectural reason these should be below 4GB, it is purely\r |
| 469 | // for convenience of implementation that we force memory below 4GB.\r |
| 470 | //\r |
| 471 | CurrentTableList->PageAddress = 0xFFFFFFFF;\r |
| 472 | CurrentTableList->NumberOfPages = EFI_SIZE_TO_PAGES (CurrentTableSize);\r |
| 473 | \r |
| 474 | //\r |
| 475 | // Allocation memory type depends on the type of the table\r |
| 476 | //\r |
| 477 | if (CurrentTableSignature == EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE || \r |
| 478 | CurrentTableSignature == EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) {\r |
| 479 | //\r |
| 480 | // Allocate memory for the FACS. This structure must be aligned\r |
| 481 | // on a 64 byte boundary and must be ACPI NVS memory.\r |
| 482 | // Using AllocatePages should ensure that it is always aligned.\r |
| 483 | //\r |
| 484 | ASSERT ((EFI_PAGE_SIZE % 64) == 0);\r |
| 485 | Status = gBS->AllocatePages (\r |
| 486 | AllocateMaxAddress,\r |
| 487 | EfiACPIMemoryNVS,\r |
| 488 | CurrentTableList->NumberOfPages,\r |
| 489 | &CurrentTableList->PageAddress\r |
| 490 | );\r |
| 491 | } else {\r |
| 492 | //\r |
| 493 | // All other tables are ACPI reclaim memory, no alignment requirements.\r |
| 494 | //\r |
| 495 | Status = gBS->AllocatePages (\r |
| 496 | AllocateMaxAddress,\r |
| 497 | EfiACPIReclaimMemory,\r |
| 498 | CurrentTableList->NumberOfPages,\r |
| 499 | &CurrentTableList->PageAddress\r |
| 500 | );\r |
| 501 | }\r |
| 502 | //\r |
| 503 | // Check return value from memory alloc.\r |
| 504 | //\r |
| 505 | if (EFI_ERROR (Status)) {\r |
| 506 | gBS->FreePool (CurrentTableList);\r |
| 507 | return EFI_OUT_OF_RESOURCES;\r |
| 508 | }\r |
| 509 | //\r |
| 510 | // Update the table pointer with the allocated memory start\r |
| 511 | //\r |
| 512 | CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *) (UINTN) CurrentTableList->PageAddress;\r |
| 513 | \r |
| 514 | //\r |
| 515 | // Initialize the table contents\r |
| 516 | //\r |
| 517 | CurrentTableList->Signature = EFI_ACPI_TABLE_LIST_SIGNATURE;\r |
| 518 | CopyMem (CurrentTableList->Table, Table, CurrentTableSize);\r |
| 519 | CurrentTableList->Handle = AcpiTableInstance->CurrentHandle++;\r |
| 520 | *Handle = CurrentTableList->Handle;\r |
| 521 | CurrentTableList->Version = Version;\r |
| 522 | \r |
| 523 | //\r |
| 524 | // Update internal pointers if this is a required table. If it is a required\r |
| 525 | // table and a table of that type already exists, return an error.\r |
| 526 | //\r |
| 527 | // Calculate the checksum if the table is not FACS.\r |
| 528 | //\r |
| 529 | switch (CurrentTableSignature) {\r |
| 530 | \r |
| 531 | case EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:\r |
| 532 | //\r |
| 533 | // We don't add the FADT in the standard way because some\r |
| 534 | // OS expect the FADT to be early in the table list.\r |
| 535 | // So we always add it as the first element in the list.\r |
| 536 | //\r |
| 537 | AddToRsdt = FALSE;\r |
| 538 | \r |
| 539 | //\r |
| 540 | // Check that the table has not been previously added.\r |
| 541 | //\r |
| 542 | if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Fadt1 != NULL) ||\r |
| 543 | ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiTableInstance->Fadt3 != NULL) ||\r |
| 544 | ((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiTableInstance->Fadt3 != NULL)\r |
| 545 | ) {\r |
| 546 | gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);\r |
| 547 | gBS->FreePool (CurrentTableList);\r |
| 548 | return EFI_ABORTED;\r |
| 549 | }\r |
| 550 | //\r |
| 551 | // Add the table to the appropriate table version\r |
| 552 | //\r |
| 553 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 554 | //\r |
| 555 | // Save a pointer to the table\r |
| 556 | //\r |
| 557 | AcpiTableInstance->Fadt1 = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;\r |
| 558 | \r |
| 559 | //\r |
| 560 | // Update pointers in FADT. If tables don't exist this will put NULL pointers there.\r |
| 561 | //\r |
| 562 | AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs1;\r |
| 563 | AcpiTableInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt1;\r |
| 564 | \r |
| 565 | //\r |
| 566 | // RSDP OEM information is updated to match the FADT OEM information\r |
| 567 | //\r |
| 568 | CopyMem (\r |
| 569 | &AcpiTableInstance->Rsdp1->OemId,\r |
| 570 | &AcpiTableInstance->Fadt1->Header.OemId,\r |
| 571 | 6\r |
| 572 | );\r |
| 573 | \r |
| 574 | //\r |
| 575 | // RSDT OEM information is updated to match the FADT OEM information.\r |
| 576 | //\r |
| 577 | CopyMem (\r |
| 578 | &AcpiTableInstance->Rsdt1->OemId,\r |
| 579 | &AcpiTableInstance->Fadt1->Header.OemId,\r |
| 580 | 6\r |
| 581 | );\r |
| 582 | \r |
| 583 | CopyMem (\r |
| 584 | &AcpiTableInstance->Rsdt1->OemTableId,\r |
| 585 | &AcpiTableInstance->Fadt1->Header.OemTableId,\r |
| 586 | sizeof (UINT64)\r |
| 587 | );\r |
| 588 | AcpiTableInstance->Rsdt1->OemRevision = AcpiTableInstance->Fadt1->Header.OemRevision;\r |
| 589 | }\r |
| 590 | \r |
| 591 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 592 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 593 | //\r |
| 594 | // Save a pointer to the table\r |
| 595 | //\r |
| 596 | AcpiTableInstance->Fadt3 = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;\r |
| 597 | \r |
| 598 | //\r |
| 599 | // Update pointers in FADT. If tables don't exist this will put NULL pointers there.\r |
| 600 | //\r |
| 601 | if (AcpiTableInstance->Fadt3 != NULL) {\r |
| 602 | AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;\r |
| 603 | Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;\r |
| 604 | CopyMem (\r |
| 605 | &AcpiTableInstance->Fadt3->XFirmwareCtrl,\r |
| 606 | &Buffer64,\r |
| 607 | sizeof (UINT64)\r |
| 608 | );\r |
| 609 | AcpiTableInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt3;\r |
| 610 | Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Dsdt3;\r |
| 611 | CopyMem (\r |
| 612 | &AcpiTableInstance->Fadt3->XDsdt,\r |
| 613 | &Buffer64,\r |
| 614 | sizeof (UINT64)\r |
| 615 | );\r |
| 616 | }\r |
| 617 | //\r |
| 618 | // RSDP OEM information is updated to match the FADT OEM information\r |
| 619 | //\r |
| 620 | CopyMem (\r |
| 621 | &AcpiTableInstance->Rsdp3->OemId,\r |
| 622 | &AcpiTableInstance->Fadt3->Header.OemId,\r |
| 623 | 6\r |
| 624 | );\r |
| 625 | \r |
| 626 | //\r |
| 627 | // RSDT OEM information is updated to match FADT OEM information.\r |
| 628 | //\r |
| 629 | CopyMem (\r |
| 630 | &AcpiTableInstance->Rsdt3->OemId,\r |
| 631 | &AcpiTableInstance->Fadt3->Header.OemId,\r |
| 632 | 6\r |
| 633 | );\r |
| 634 | CopyMem (\r |
| 635 | &AcpiTableInstance->Rsdt3->OemTableId,\r |
| 636 | &AcpiTableInstance->Fadt3->Header.OemTableId,\r |
| 637 | sizeof (UINT64)\r |
| 638 | );\r |
| 639 | AcpiTableInstance->Rsdt3->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;\r |
| 640 | \r |
| 641 | //\r |
| 642 | // XSDT OEM information is updated to match FADT OEM information.\r |
| 643 | //\r |
| 644 | CopyMem (\r |
| 645 | &AcpiTableInstance->Xsdt->OemId,\r |
| 646 | &AcpiTableInstance->Fadt3->Header.OemId,\r |
| 647 | 6\r |
| 648 | );\r |
| 649 | CopyMem (\r |
| 650 | &AcpiTableInstance->Xsdt->OemTableId,\r |
| 651 | &AcpiTableInstance->Fadt3->Header.OemTableId,\r |
| 652 | sizeof (UINT64)\r |
| 653 | );\r |
| 654 | AcpiTableInstance->Xsdt->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;\r |
| 655 | } \r |
| 656 | //\r |
| 657 | // Checksum the table\r |
| 658 | //\r |
| 659 | if (Checksum) {\r |
| 660 | AcpiPlatformChecksum (\r |
| 661 | CurrentTableList->Table,\r |
| 662 | CurrentTableList->Table->Length,\r |
| 663 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 664 | Checksum)\r |
| 665 | );\r |
| 666 | }\r |
| 667 | break;\r |
| 668 | \r |
| 669 | case EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:\r |
| 670 | //\r |
| 671 | // Check that the table has not been previously added.\r |
| 672 | //\r |
| 673 | if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Facs1 != NULL) ||\r |
| 674 | ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiTableInstance->Facs3 != NULL) ||\r |
| 675 | ((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiTableInstance->Facs3 != NULL)\r |
| 676 | ) {\r |
| 677 | gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);\r |
| 678 | gBS->FreePool (CurrentTableList);\r |
| 679 | return EFI_ABORTED;\r |
| 680 | }\r |
| 681 | //\r |
| 682 | // FACS is referenced by FADT and is not part of RSDT\r |
| 683 | //\r |
| 684 | AddToRsdt = FALSE;\r |
| 685 | \r |
| 686 | //\r |
| 687 | // Add the table to the appropriate table version\r |
| 688 | //\r |
| 689 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 690 | //\r |
| 691 | // Save a pointer to the table\r |
| 692 | //\r |
| 693 | AcpiTableInstance->Facs1 = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;\r |
| 694 | \r |
| 695 | //\r |
| 696 | // If FADT already exists, update table pointers.\r |
| 697 | //\r |
| 698 | if (AcpiTableInstance->Fadt1 != NULL) {\r |
| 699 | AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs1;\r |
| 700 | \r |
| 701 | //\r |
| 702 | // Checksum FADT table\r |
| 703 | //\r |
| 704 | AcpiPlatformChecksum (\r |
| 705 | AcpiTableInstance->Fadt1,\r |
| 706 | AcpiTableInstance->Fadt1->Header.Length,\r |
| 707 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 708 | Checksum)\r |
| 709 | );\r |
| 710 | }\r |
| 711 | }\r |
| 712 | \r |
| 713 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 714 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 715 | //\r |
| 716 | // Save a pointer to the table\r |
| 717 | //\r |
| 718 | AcpiTableInstance->Facs3 = (EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;\r |
| 719 | \r |
| 720 | //\r |
| 721 | // If FADT already exists, update table pointers.\r |
| 722 | //\r |
| 723 | if (AcpiTableInstance->Fadt3 != NULL) {\r |
| 724 | AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;\r |
| 725 | Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;\r |
| 726 | CopyMem (\r |
| 727 | &AcpiTableInstance->Fadt3->XFirmwareCtrl,\r |
| 728 | &Buffer64,\r |
| 729 | sizeof (UINT64)\r |
| 730 | );\r |
| 731 | \r |
| 732 | //\r |
| 733 | // Checksum FADT table\r |
| 734 | //\r |
| 735 | AcpiPlatformChecksum (\r |
| 736 | AcpiTableInstance->Fadt3,\r |
| 737 | AcpiTableInstance->Fadt3->Header.Length,\r |
| 738 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 739 | Checksum)\r |
| 740 | );\r |
| 741 | }\r |
| 742 | }\r |
| 743 | \r |
| 744 | break;\r |
| 745 | \r |
| 746 | case EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:\r |
| 747 | //\r |
| 748 | // Check that the table has not been previously added.\r |
| 749 | //\r |
| 750 | if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Dsdt1 != NULL) ||\r |
| 751 | ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 && AcpiTableInstance->Dsdt3 != NULL) ||\r |
| 752 | ((Version & EFI_ACPI_TABLE_VERSION_3_0) != 0 && AcpiTableInstance->Dsdt3 != NULL)\r |
| 753 | ) {\r |
| 754 | gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);\r |
| 755 | gBS->FreePool (CurrentTableList);\r |
| 756 | return EFI_ABORTED;\r |
| 757 | }\r |
| 758 | //\r |
| 759 | // DSDT is referenced by FADT and is not part of RSDT\r |
| 760 | //\r |
| 761 | AddToRsdt = FALSE;\r |
| 762 | \r |
| 763 | //\r |
| 764 | // Add the table to the appropriate table version\r |
| 765 | //\r |
| 766 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 767 | //\r |
| 768 | // Save a pointer to the table\r |
| 769 | //\r |
| 770 | AcpiTableInstance->Dsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;\r |
| 771 | \r |
| 772 | //\r |
| 773 | // If FADT already exists, update table pointers.\r |
| 774 | //\r |
| 775 | if (AcpiTableInstance->Fadt1 != NULL) {\r |
| 776 | AcpiTableInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt1;\r |
| 777 | \r |
| 778 | //\r |
| 779 | // Checksum FADT table\r |
| 780 | //\r |
| 781 | AcpiPlatformChecksum (\r |
| 782 | AcpiTableInstance->Fadt1,\r |
| 783 | AcpiTableInstance->Fadt1->Header.Length,\r |
| 784 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 785 | Checksum)\r |
| 786 | );\r |
| 787 | }\r |
| 788 | }\r |
| 789 | \r |
| 790 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 791 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 792 | //\r |
| 793 | // Save a pointer to the table\r |
| 794 | //\r |
| 795 | AcpiTableInstance->Dsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;\r |
| 796 | \r |
| 797 | //\r |
| 798 | // If FADT already exists, update table pointers.\r |
| 799 | //\r |
| 800 | if (AcpiTableInstance->Fadt3 != NULL) {\r |
| 801 | AcpiTableInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt3;\r |
| 802 | Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Dsdt3;\r |
| 803 | CopyMem (\r |
| 804 | &AcpiTableInstance->Fadt3->XDsdt,\r |
| 805 | &Buffer64,\r |
| 806 | sizeof (UINT64)\r |
| 807 | );\r |
| 808 | \r |
| 809 | //\r |
| 810 | // Checksum FADT table\r |
| 811 | //\r |
| 812 | AcpiPlatformChecksum (\r |
| 813 | AcpiTableInstance->Fadt3,\r |
| 814 | AcpiTableInstance->Fadt3->Header.Length,\r |
| 815 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 816 | Checksum)\r |
| 817 | );\r |
| 818 | }\r |
| 819 | } \r |
| 820 | //\r |
| 821 | // Checksum the table\r |
| 822 | //\r |
| 823 | if (Checksum) {\r |
| 824 | AcpiPlatformChecksum (\r |
| 825 | CurrentTableList->Table,\r |
| 826 | CurrentTableList->Table->Length,\r |
| 827 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 828 | Checksum)\r |
| 829 | );\r |
| 830 | }\r |
| 831 | break;\r |
| 832 | \r |
| 833 | default:\r |
| 834 | //\r |
| 835 | // Checksum the table\r |
| 836 | //\r |
| 837 | if (Checksum) {\r |
| 838 | AcpiPlatformChecksum (\r |
| 839 | CurrentTableList->Table,\r |
| 840 | CurrentTableList->Table->Length,\r |
| 841 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 842 | Checksum)\r |
| 843 | );\r |
| 844 | }\r |
| 845 | break;\r |
| 846 | }\r |
| 847 | //\r |
| 848 | // Add the table to the current list of tables\r |
| 849 | //\r |
| 850 | InsertTailList (&AcpiTableInstance->TableList, &CurrentTableList->Link);\r |
| 851 | \r |
| 852 | //\r |
| 853 | // Add the table to RSDT and/or XSDT table entry lists.\r |
| 854 | //\r |
| 855 | //\r |
| 856 | // Add to ACPI 1.0b table tree\r |
| 857 | //\r |
| 858 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 859 | CurrentRsdtEntry = (UINT32 *)\r |
| 860 | (\r |
| 861 | (UINT8 *) AcpiTableInstance->Rsdt1 +\r |
| 862 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r |
| 863 | AcpiTableInstance->NumberOfTableEntries1 *\r |
| 864 | sizeof (UINT32)\r |
| 865 | );\r |
| 866 | \r |
| 867 | //\r |
| 868 | // Add entry to the RSDT unless its the FACS or DSDT\r |
| 869 | //\r |
| 870 | if (AddToRsdt) {\r |
| 871 | *CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;\r |
| 872 | \r |
| 873 | //\r |
| 874 | // Update RSDT length\r |
| 875 | //\r |
| 876 | AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);\r |
| 877 | \r |
| 878 | AcpiTableInstance->NumberOfTableEntries1++;\r |
| 879 | }\r |
| 880 | \r |
| 881 | ASSERT (AcpiTableInstance->NumberOfTableEntries1 <= EFI_ACPI_MAX_NUM_TABLES);\r |
| 882 | }\r |
| 883 | //\r |
| 884 | // Add to ACPI 2.0/3.0 table tree\r |
| 885 | //\r |
| 886 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 887 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 888 | if (AddToRsdt) {\r |
| 889 | //\r |
| 890 | // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.\r |
| 891 | // If it becomes necessary to maintain separate table lists, changes will be required.\r |
| 892 | //\r |
| 893 | CurrentRsdtEntry = (UINT32 *)\r |
| 894 | (\r |
| 895 | (UINT8 *) AcpiTableInstance->Rsdt3 +\r |
| 896 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r |
| 897 | AcpiTableInstance->NumberOfTableEntries3 *\r |
| 898 | sizeof (UINT32)\r |
| 899 | );\r |
| 900 | \r |
| 901 | //\r |
| 902 | // This pointer must not be directly dereferenced as the XSDT entries may not\r |
| 903 | // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.\r |
| 904 | //\r |
| 905 | CurrentXsdtEntry = (VOID *)\r |
| 906 | (\r |
| 907 | (UINT8 *) AcpiTableInstance->Xsdt +\r |
| 908 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) +\r |
| 909 | AcpiTableInstance->NumberOfTableEntries3 *\r |
| 910 | sizeof (UINT64)\r |
| 911 | );\r |
| 912 | \r |
| 913 | //\r |
| 914 | // Add entry to the RSDT\r |
| 915 | //\r |
| 916 | *CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;\r |
| 917 | \r |
| 918 | //\r |
| 919 | // Update RSDT length\r |
| 920 | //\r |
| 921 | AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);\r |
| 922 | \r |
| 923 | //\r |
| 924 | // Add entry to XSDT, XSDT expects 64 bit pointers, but\r |
| 925 | // the table pointers in XSDT are not aligned on 8 byte boundary.\r |
| 926 | //\r |
| 927 | Buffer64 = (UINT64) (UINTN) CurrentTableList->Table;\r |
| 928 | CopyMem (\r |
| 929 | CurrentXsdtEntry,\r |
| 930 | &Buffer64,\r |
| 931 | sizeof (UINT64)\r |
| 932 | );\r |
| 933 | \r |
| 934 | //\r |
| 935 | // Update length\r |
| 936 | //\r |
| 937 | AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);\r |
| 938 | \r |
| 939 | AcpiTableInstance->NumberOfTableEntries3++;\r |
| 940 | }\r |
| 941 | \r |
| 942 | ASSERT (AcpiTableInstance->NumberOfTableEntries3 <= EFI_ACPI_MAX_NUM_TABLES);\r |
| 943 | }\r |
| 944 | \r |
| 945 | ChecksumCommonTables (AcpiTableInstance);\r |
| 946 | return EFI_SUCCESS;\r |
| 947 | }\r |
| 948 | \r |
| 949 | \r |
| 950 | /**\r |
| 951 | This function finds the table specified by the handle and returns a pointer to it.\r |
| 952 | If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are\r |
| 953 | undefined.\r |
| 954 | \r |
| 955 | @param Handle Table to find.\r |
| 956 | @param TableList Table list to search\r |
| 957 | @param Table Pointer to table found. \r |
| 958 | \r |
| 959 | @return EFI_SUCCESS The function completed successfully.\r |
| 960 | @return EFI_NOT_FOUND No table found matching the handle specified.\r |
| 961 | \r |
| 962 | **/\r |
| 963 | EFI_STATUS\r |
| 964 | FindTableByHandle (\r |
| 965 | IN UINTN Handle,\r |
| 966 | IN LIST_ENTRY *TableList,\r |
| 967 | OUT EFI_ACPI_TABLE_LIST **Table\r |
| 968 | )\r |
| 969 | {\r |
| 970 | LIST_ENTRY *CurrentLink;\r |
| 971 | EFI_ACPI_TABLE_LIST *CurrentTable;\r |
| 972 | \r |
| 973 | //\r |
| 974 | // Check for invalid input parameters\r |
| 975 | //\r |
| 976 | ASSERT (Table);\r |
| 977 | \r |
| 978 | //\r |
| 979 | // Find the table\r |
| 980 | //\r |
| 981 | CurrentLink = TableList->ForwardLink;\r |
| 982 | \r |
| 983 | while (CurrentLink != TableList) {\r |
| 984 | CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);\r |
| 985 | if (CurrentTable->Handle == Handle) {\r |
| 986 | //\r |
| 987 | // Found handle, so return this table.\r |
| 988 | //\r |
| 989 | *Table = CurrentTable;\r |
| 990 | return EFI_SUCCESS;\r |
| 991 | }\r |
| 992 | \r |
| 993 | CurrentLink = CurrentLink->ForwardLink;\r |
| 994 | }\r |
| 995 | //\r |
| 996 | // Table not found\r |
| 997 | //\r |
| 998 | return EFI_NOT_FOUND;\r |
| 999 | }\r |
| 1000 | \r |
| 1001 | \r |
| 1002 | /**\r |
| 1003 | This function removes a basic table from the RSDT and/or XSDT.\r |
| 1004 | For Acpi 1.0 tables, pass in the Rsdt.\r |
| 1005 | For Acpi 2.0 tables, pass in both Rsdt and Xsdt.\r |
| 1006 | \r |
| 1007 | @param Table Pointer to table found. \r |
| 1008 | @param NumberOfTableEntries Current number of table entries in the RSDT/XSDT\r |
| 1009 | @param Rsdt Pointer to the RSDT to remove from\r |
| 1010 | @param Xsdt Pointer to the Xsdt to remove from\r |
| 1011 | \r |
| 1012 | @return EFI_SUCCESS The function completed successfully.\r |
| 1013 | @return EFI_INVALID_PARAMETER The table was not found in both Rsdt and Xsdt.\r |
| 1014 | \r |
| 1015 | **/\r |
| 1016 | EFI_STATUS\r |
| 1017 | RemoveTableFromRsdt (\r |
| 1018 | IN OUT EFI_ACPI_TABLE_LIST * Table,\r |
| 1019 | IN OUT UINTN *NumberOfTableEntries,\r |
| 1020 | IN OUT EFI_ACPI_DESCRIPTION_HEADER * Rsdt,\r |
| 1021 | IN OUT EFI_ACPI_DESCRIPTION_HEADER * Xsdt OPTIONAL\r |
| 1022 | )\r |
| 1023 | {\r |
| 1024 | UINT32 *CurrentRsdtEntry;\r |
| 1025 | VOID *CurrentXsdtEntry;\r |
| 1026 | UINT64 CurrentTablePointer64;\r |
| 1027 | UINTN Index;\r |
| 1028 | \r |
| 1029 | //\r |
| 1030 | // Check for invalid input parameters\r |
| 1031 | //\r |
| 1032 | ASSERT (Table);\r |
| 1033 | ASSERT (NumberOfTableEntries);\r |
| 1034 | ASSERT (Rsdt);\r |
| 1035 | \r |
| 1036 | //\r |
| 1037 | // Find the table entry in the RSDT and XSDT\r |
| 1038 | //\r |
| 1039 | for (Index = 0; Index < *NumberOfTableEntries; Index++) {\r |
| 1040 | //\r |
| 1041 | // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.\r |
| 1042 | // If it becomes necessary to maintain separate table lists, changes will be required.\r |
| 1043 | //\r |
| 1044 | CurrentRsdtEntry = (UINT32 *) ((UINT8 *) Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT32));\r |
| 1045 | if (Xsdt != NULL) {\r |
| 1046 | //\r |
| 1047 | // This pointer must not be directly dereferenced as the XSDT entries may not\r |
| 1048 | // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.\r |
| 1049 | //\r |
| 1050 | CurrentXsdtEntry = (VOID *) ((UINT8 *) Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT64));\r |
| 1051 | \r |
| 1052 | //\r |
| 1053 | // Read the entry value out of the XSDT\r |
| 1054 | //\r |
| 1055 | CopyMem (&CurrentTablePointer64, CurrentXsdtEntry, sizeof (UINT64));\r |
| 1056 | } else {\r |
| 1057 | //\r |
| 1058 | // Initialize to NULL\r |
| 1059 | //\r |
| 1060 | CurrentXsdtEntry = 0;\r |
| 1061 | CurrentTablePointer64 = 0;\r |
| 1062 | }\r |
| 1063 | //\r |
| 1064 | // Check if we have found the corresponding entry in both RSDT and XSDT\r |
| 1065 | //\r |
| 1066 | if (*CurrentRsdtEntry == (UINT32) (UINTN) Table->Table &&\r |
| 1067 | ((Xsdt == NULL) || CurrentTablePointer64 == (UINT64) (UINTN) Table->Table)\r |
| 1068 | ) {\r |
| 1069 | //\r |
| 1070 | // Found entry, so copy all following entries and shrink table\r |
| 1071 | // We actually copy all + 1 to copy the initialized value of memory over\r |
| 1072 | // the last entry.\r |
| 1073 | //\r |
| 1074 | CopyMem (CurrentRsdtEntry, CurrentRsdtEntry + 1, (*NumberOfTableEntries - Index) * sizeof (UINT32));\r |
| 1075 | Rsdt->Length = Rsdt->Length - sizeof (UINT32);\r |
| 1076 | if (Xsdt != NULL) {\r |
| 1077 | CopyMem (CurrentXsdtEntry, ((UINT64 *) CurrentXsdtEntry) + 1, (*NumberOfTableEntries - Index) * sizeof (UINT64));\r |
| 1078 | Xsdt->Length = Xsdt->Length - sizeof (UINT64);\r |
| 1079 | }\r |
| 1080 | break;\r |
| 1081 | } else if (Index + 1 == *NumberOfTableEntries) {\r |
| 1082 | //\r |
| 1083 | // At the last entry, and table not found\r |
| 1084 | //\r |
| 1085 | return EFI_INVALID_PARAMETER;\r |
| 1086 | }\r |
| 1087 | }\r |
| 1088 | //\r |
| 1089 | // Checksum the tables\r |
| 1090 | //\r |
| 1091 | AcpiPlatformChecksum (\r |
| 1092 | Rsdt,\r |
| 1093 | Rsdt->Length,\r |
| 1094 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1095 | Checksum)\r |
| 1096 | );\r |
| 1097 | \r |
| 1098 | if (Xsdt != NULL) {\r |
| 1099 | AcpiPlatformChecksum (\r |
| 1100 | Xsdt,\r |
| 1101 | Xsdt->Length,\r |
| 1102 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1103 | Checksum)\r |
| 1104 | );\r |
| 1105 | }\r |
| 1106 | //\r |
| 1107 | // Decrement the number of tables\r |
| 1108 | //\r |
| 1109 | (*NumberOfTableEntries)--;\r |
| 1110 | \r |
| 1111 | return EFI_SUCCESS;\r |
| 1112 | }\r |
| 1113 | \r |
| 1114 | \r |
| 1115 | /**\r |
| 1116 | This function removes a table and frees any associated memory.\r |
| 1117 | \r |
| 1118 | @param AcpiTableInstance Instance of the protocol.\r |
| 1119 | @param Version Version(s) to delete.\r |
| 1120 | @param Table Pointer to table found.\r |
| 1121 | \r |
| 1122 | @return EFI_SUCCESS The function completed successfully.\r |
| 1123 | \r |
| 1124 | **/\r |
| 1125 | EFI_STATUS\r |
| 1126 | DeleteTable (\r |
| 1127 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 1128 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 1129 | IN OUT EFI_ACPI_TABLE_LIST *Table\r |
| 1130 | )\r |
| 1131 | {\r |
| 1132 | UINT32 CurrentTableSignature;\r |
| 1133 | BOOLEAN RemoveFromRsdt;\r |
| 1134 | \r |
| 1135 | //\r |
| 1136 | // Check for invalid input parameters\r |
| 1137 | //\r |
| 1138 | ASSERT (AcpiTableInstance);\r |
| 1139 | ASSERT (Table);\r |
| 1140 | \r |
| 1141 | //\r |
| 1142 | // Init locals\r |
| 1143 | //\r |
| 1144 | RemoveFromRsdt = TRUE;\r |
| 1145 | CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table->Table)->Signature;\r |
| 1146 | \r |
| 1147 | //\r |
| 1148 | // Basic tasks to accomplish delete are:\r |
| 1149 | // Determine removal requirements (in RSDT/XSDT or not)\r |
| 1150 | // Remove entry from RSDT/XSDT\r |
| 1151 | // Remove any table references to the table\r |
| 1152 | // If no one is using the table\r |
| 1153 | // Free the table (removing pointers from private data and tables)\r |
| 1154 | // Remove from list\r |
| 1155 | // Free list structure\r |
| 1156 | //\r |
| 1157 | //\r |
| 1158 | // Determine if this table is in the RSDT or XSDT\r |
| 1159 | //\r |
| 1160 | if ((CurrentTableSignature == EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||\r |
| 1161 | (CurrentTableSignature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) ||\r |
| 1162 | (CurrentTableSignature == EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)\r |
| 1163 | ) {\r |
| 1164 | RemoveFromRsdt = FALSE;\r |
| 1165 | }\r |
| 1166 | //\r |
| 1167 | // We don't remove the FADT in the standard way because some\r |
| 1168 | // OS expect the FADT to be early in the table list.\r |
| 1169 | // So we always put it as the first element in the list.\r |
| 1170 | //\r |
| 1171 | if (CurrentTableSignature == EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {\r |
| 1172 | RemoveFromRsdt = FALSE;\r |
| 1173 | }\r |
| 1174 | \r |
| 1175 | //\r |
| 1176 | // Remove the table from RSDT and XSDT\r |
| 1177 | //\r |
| 1178 | if (Table->Table != NULL) {\r |
| 1179 | //\r |
| 1180 | // This is a basic table, remove it from any lists and the Rsdt and/or Xsdt\r |
| 1181 | //\r |
| 1182 | if (Version & EFI_ACPI_TABLE_VERSION_NONE & Table->Version) {\r |
| 1183 | //\r |
| 1184 | // Remove this version from the table\r |
| 1185 | //\r |
| 1186 | Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_NONE;\r |
| 1187 | }\r |
| 1188 | \r |
| 1189 | if (Version & EFI_ACPI_TABLE_VERSION_1_0B & Table->Version) {\r |
| 1190 | //\r |
| 1191 | // Remove this version from the table\r |
| 1192 | //\r |
| 1193 | Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_1_0B;\r |
| 1194 | \r |
| 1195 | //\r |
| 1196 | // Remove from Rsdt. We don't care about the return value because it is\r |
| 1197 | // acceptable for the table to not exist in Rsdt.\r |
| 1198 | // We didn't add some tables so we don't remove them.\r |
| 1199 | //\r |
| 1200 | if (RemoveFromRsdt) {\r |
| 1201 | RemoveTableFromRsdt (\r |
| 1202 | Table,\r |
| 1203 | &AcpiTableInstance->NumberOfTableEntries1,\r |
| 1204 | AcpiTableInstance->Rsdt1,\r |
| 1205 | NULL\r |
| 1206 | );\r |
| 1207 | }\r |
| 1208 | }\r |
| 1209 | \r |
| 1210 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0 & Table->Version) ||\r |
| 1211 | (Version & EFI_ACPI_TABLE_VERSION_3_0 & Table->Version)) {\r |
| 1212 | //\r |
| 1213 | // Remove this version from the table\r |
| 1214 | //\r |
| 1215 | if (Version & EFI_ACPI_TABLE_VERSION_2_0 & Table->Version) {\r |
| 1216 | Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_2_0;\r |
| 1217 | } \r |
| 1218 | if (Version & EFI_ACPI_TABLE_VERSION_3_0 & Table->Version) {\r |
| 1219 | Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_3_0;\r |
| 1220 | }\r |
| 1221 | \r |
| 1222 | //\r |
| 1223 | // Remove from Rsdt and Xsdt. We don't care about the return value\r |
| 1224 | // because it is acceptable for the table to not exist in Rsdt/Xsdt.\r |
| 1225 | // We didn't add some tables so we don't remove them.\r |
| 1226 | //\r |
| 1227 | if (RemoveFromRsdt) {\r |
| 1228 | RemoveTableFromRsdt (\r |
| 1229 | Table,\r |
| 1230 | &AcpiTableInstance->NumberOfTableEntries3,\r |
| 1231 | AcpiTableInstance->Rsdt3,\r |
| 1232 | AcpiTableInstance->Xsdt\r |
| 1233 | );\r |
| 1234 | }\r |
| 1235 | } \r |
| 1236 | //\r |
| 1237 | // Free the table, clean up any dependent tables and our private data pointers.\r |
| 1238 | //\r |
| 1239 | switch (Table->Table->Signature) {\r |
| 1240 | \r |
| 1241 | case EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:\r |
| 1242 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 1243 | AcpiTableInstance->Fadt1 = NULL;\r |
| 1244 | }\r |
| 1245 | \r |
| 1246 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 1247 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 1248 | AcpiTableInstance->Fadt3 = NULL;\r |
| 1249 | }\r |
| 1250 | break;\r |
| 1251 | \r |
| 1252 | case EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:\r |
| 1253 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 1254 | AcpiTableInstance->Facs1 = NULL;\r |
| 1255 | \r |
| 1256 | //\r |
| 1257 | // Update FADT table pointers\r |
| 1258 | //\r |
| 1259 | if (AcpiTableInstance->Fadt1 != NULL) {\r |
| 1260 | AcpiTableInstance->Fadt1->FirmwareCtrl = 0;\r |
| 1261 | \r |
| 1262 | //\r |
| 1263 | // Checksum table\r |
| 1264 | //\r |
| 1265 | AcpiPlatformChecksum (\r |
| 1266 | AcpiTableInstance->Fadt1,\r |
| 1267 | AcpiTableInstance->Fadt1->Header.Length,\r |
| 1268 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1269 | Checksum)\r |
| 1270 | );\r |
| 1271 | }\r |
| 1272 | }\r |
| 1273 | \r |
| 1274 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 1275 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 1276 | AcpiTableInstance->Facs3 = NULL;\r |
| 1277 | \r |
| 1278 | //\r |
| 1279 | // Update FADT table pointers\r |
| 1280 | //\r |
| 1281 | if (AcpiTableInstance->Fadt3 != NULL) {\r |
| 1282 | AcpiTableInstance->Fadt3->FirmwareCtrl = 0;\r |
| 1283 | ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));\r |
| 1284 | \r |
| 1285 | //\r |
| 1286 | // Checksum table\r |
| 1287 | //\r |
| 1288 | AcpiPlatformChecksum (\r |
| 1289 | AcpiTableInstance->Fadt3,\r |
| 1290 | AcpiTableInstance->Fadt3->Header.Length,\r |
| 1291 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1292 | Checksum)\r |
| 1293 | );\r |
| 1294 | }\r |
| 1295 | } \r |
| 1296 | break;\r |
| 1297 | \r |
| 1298 | case EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:\r |
| 1299 | if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {\r |
| 1300 | AcpiTableInstance->Dsdt1 = NULL;\r |
| 1301 | \r |
| 1302 | //\r |
| 1303 | // Update FADT table pointers\r |
| 1304 | //\r |
| 1305 | if (AcpiTableInstance->Fadt1 != NULL) {\r |
| 1306 | AcpiTableInstance->Fadt1->Dsdt = 0;\r |
| 1307 | \r |
| 1308 | //\r |
| 1309 | // Checksum table\r |
| 1310 | //\r |
| 1311 | AcpiPlatformChecksum (\r |
| 1312 | AcpiTableInstance->Fadt1,\r |
| 1313 | AcpiTableInstance->Fadt1->Header.Length,\r |
| 1314 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1315 | Checksum)\r |
| 1316 | );\r |
| 1317 | }\r |
| 1318 | }\r |
| 1319 | \r |
| 1320 | \r |
| 1321 | if ((Version & EFI_ACPI_TABLE_VERSION_2_0) != 0 ||\r |
| 1322 | (Version & EFI_ACPI_TABLE_VERSION_3_0) != 0) {\r |
| 1323 | AcpiTableInstance->Dsdt3 = NULL;\r |
| 1324 | \r |
| 1325 | //\r |
| 1326 | // Update FADT table pointers\r |
| 1327 | //\r |
| 1328 | if (AcpiTableInstance->Fadt3 != NULL) {\r |
| 1329 | AcpiTableInstance->Fadt3->Dsdt = 0;\r |
| 1330 | ZeroMem (&AcpiTableInstance->Fadt3->XDsdt, sizeof (UINT64));\r |
| 1331 | \r |
| 1332 | //\r |
| 1333 | // Checksum table\r |
| 1334 | //\r |
| 1335 | AcpiPlatformChecksum (\r |
| 1336 | AcpiTableInstance->Fadt3,\r |
| 1337 | AcpiTableInstance->Fadt3->Header.Length,\r |
| 1338 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1339 | Checksum)\r |
| 1340 | );\r |
| 1341 | }\r |
| 1342 | }\r |
| 1343 | break;\r |
| 1344 | \r |
| 1345 | default:\r |
| 1346 | //\r |
| 1347 | // Do nothing\r |
| 1348 | //\r |
| 1349 | break;\r |
| 1350 | }\r |
| 1351 | }\r |
| 1352 | //\r |
| 1353 | // If no version is using this table anymore, remove and free list entry.\r |
| 1354 | //\r |
| 1355 | if (Table->Version == 0) {\r |
| 1356 | //\r |
| 1357 | // Free the Table\r |
| 1358 | //\r |
| 1359 | gBS->FreePages (Table->PageAddress, Table->NumberOfPages);\r |
| 1360 | RemoveEntryList (&(Table->Link));\r |
| 1361 | gBS->FreePool (Table);\r |
| 1362 | }\r |
| 1363 | //\r |
| 1364 | // Done\r |
| 1365 | //\r |
| 1366 | return EFI_SUCCESS;\r |
| 1367 | }\r |
| 1368 | \r |
| 1369 | \r |
| 1370 | /**\r |
| 1371 | This function finds and removes the table specified by the handle.\r |
| 1372 | \r |
| 1373 | @param AcpiTableInstance Instance of the protocol.\r |
| 1374 | @param Version Bitmask of which versions to remove.\r |
| 1375 | @param Handle Table to remove.\r |
| 1376 | \r |
| 1377 | @return EFI_SUCCESS The function completed successfully.\r |
| 1378 | @return EFI_ABORTED An error occurred.\r |
| 1379 | @return EFI_NOT_FOUND Handle not found in table list.\r |
| 1380 | \r |
| 1381 | **/\r |
| 1382 | EFI_STATUS\r |
| 1383 | RemoveTableFromList (\r |
| 1384 | IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,\r |
| 1385 | IN EFI_ACPI_TABLE_VERSION Version,\r |
| 1386 | IN UINTN Handle\r |
| 1387 | )\r |
| 1388 | {\r |
| 1389 | EFI_ACPI_TABLE_LIST *Table;\r |
| 1390 | EFI_STATUS Status;\r |
| 1391 | \r |
| 1392 | //\r |
| 1393 | // Check for invalid input parameters\r |
| 1394 | //\r |
| 1395 | ASSERT (AcpiTableInstance);\r |
| 1396 | \r |
| 1397 | //\r |
| 1398 | // Find the table\r |
| 1399 | //\r |
| 1400 | Status = FindTableByHandle (\r |
| 1401 | Handle,\r |
| 1402 | &AcpiTableInstance->TableList,\r |
| 1403 | &Table\r |
| 1404 | );\r |
| 1405 | if (EFI_ERROR (Status)) {\r |
| 1406 | return EFI_NOT_FOUND;\r |
| 1407 | }\r |
| 1408 | //\r |
| 1409 | // Remove the table\r |
| 1410 | //\r |
| 1411 | Status = DeleteTable (AcpiTableInstance, Version, Table);\r |
| 1412 | if (EFI_ERROR (Status)) {\r |
| 1413 | return EFI_ABORTED;\r |
| 1414 | }\r |
| 1415 | //\r |
| 1416 | // Completed successfully\r |
| 1417 | //\r |
| 1418 | return EFI_SUCCESS;\r |
| 1419 | }\r |
| 1420 | \r |
| 1421 | \r |
| 1422 | /**\r |
| 1423 | This function calculates and updates an UINT8 checksum.\r |
| 1424 | \r |
| 1425 | @param Buffer Pointer to buffer to checksum\r |
| 1426 | @param Size Number of bytes to checksum\r |
| 1427 | @param ChecksumOffset Offset to place the checksum result in\r |
| 1428 | \r |
| 1429 | @return EFI_SUCCESS The function completed successfully.\r |
| 1430 | \r |
| 1431 | **/\r |
| 1432 | EFI_STATUS\r |
| 1433 | AcpiPlatformChecksum (\r |
| 1434 | IN VOID *Buffer,\r |
| 1435 | IN UINTN Size,\r |
| 1436 | IN UINTN ChecksumOffset\r |
| 1437 | )\r |
| 1438 | {\r |
| 1439 | UINT8 Sum;\r |
| 1440 | UINT8 *Ptr;\r |
| 1441 | \r |
| 1442 | Sum = 0;\r |
| 1443 | //\r |
| 1444 | // Initialize pointer\r |
| 1445 | //\r |
| 1446 | Ptr = Buffer;\r |
| 1447 | \r |
| 1448 | //\r |
| 1449 | // set checksum to 0 first\r |
| 1450 | //\r |
| 1451 | Ptr[ChecksumOffset] = 0;\r |
| 1452 | \r |
| 1453 | //\r |
| 1454 | // add all content of buffer\r |
| 1455 | //\r |
| 1456 | while ((Size--) != 0) {\r |
| 1457 | Sum = (UINT8) (Sum + (*Ptr++));\r |
| 1458 | }\r |
| 1459 | //\r |
| 1460 | // set checksum\r |
| 1461 | //\r |
| 1462 | Ptr = Buffer;\r |
| 1463 | Ptr[ChecksumOffset] = (UINT8) (0xff - Sum + 1);\r |
| 1464 | \r |
| 1465 | return EFI_SUCCESS;\r |
| 1466 | }\r |
| 1467 | \r |
| 1468 | \r |
| 1469 | /**\r |
| 1470 | Checksum all versions of the common tables, RSDP, RSDT, XSDT.\r |
| 1471 | \r |
| 1472 | @param AcpiTableInstance Protocol instance private data.\r |
| 1473 | \r |
| 1474 | @return EFI_SUCCESS The function completed successfully.\r |
| 1475 | \r |
| 1476 | **/\r |
| 1477 | EFI_STATUS\r |
| 1478 | ChecksumCommonTables (\r |
| 1479 | IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance\r |
| 1480 | )\r |
| 1481 | {\r |
| 1482 | //\r |
| 1483 | // RSDP ACPI 1.0 checksum for 1.0 table. This is only the first 20 bytes of the structure\r |
| 1484 | //\r |
| 1485 | AcpiPlatformChecksum (\r |
| 1486 | AcpiTableInstance->Rsdp1,\r |
| 1487 | sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),\r |
| 1488 | OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,\r |
| 1489 | Checksum)\r |
| 1490 | );\r |
| 1491 | \r |
| 1492 | //\r |
| 1493 | // RSDP ACPI 1.0 checksum for 2.0/3.0 table. This is only the first 20 bytes of the structure\r |
| 1494 | //\r |
| 1495 | AcpiPlatformChecksum (\r |
| 1496 | AcpiTableInstance->Rsdp3,\r |
| 1497 | sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),\r |
| 1498 | OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,\r |
| 1499 | Checksum)\r |
| 1500 | );\r |
| 1501 | \r |
| 1502 | //\r |
| 1503 | // RSDP ACPI 2.0/3.0 checksum, this is the entire table\r |
| 1504 | //\r |
| 1505 | AcpiPlatformChecksum (\r |
| 1506 | AcpiTableInstance->Rsdp3,\r |
| 1507 | sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER),\r |
| 1508 | OFFSET_OF (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER,\r |
| 1509 | ExtendedChecksum)\r |
| 1510 | );\r |
| 1511 | \r |
| 1512 | //\r |
| 1513 | // RSDT checksums\r |
| 1514 | //\r |
| 1515 | AcpiPlatformChecksum (\r |
| 1516 | AcpiTableInstance->Rsdt1,\r |
| 1517 | AcpiTableInstance->Rsdt1->Length,\r |
| 1518 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1519 | Checksum)\r |
| 1520 | );\r |
| 1521 | \r |
| 1522 | AcpiPlatformChecksum (\r |
| 1523 | AcpiTableInstance->Rsdt3,\r |
| 1524 | AcpiTableInstance->Rsdt3->Length,\r |
| 1525 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1526 | Checksum)\r |
| 1527 | );\r |
| 1528 | \r |
| 1529 | //\r |
| 1530 | // XSDT checksum\r |
| 1531 | //\r |
| 1532 | AcpiPlatformChecksum (\r |
| 1533 | AcpiTableInstance->Xsdt,\r |
| 1534 | AcpiTableInstance->Xsdt->Length,\r |
| 1535 | OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,\r |
| 1536 | Checksum)\r |
| 1537 | );\r |
| 1538 | \r |
| 1539 | return EFI_SUCCESS;\r |
| 1540 | }\r |
| 1541 | \r |
| 1542 | \r |
| 1543 | /**\r |
| 1544 | Constructor for the ACPI table protocol. Initializes instance\r |
| 1545 | data.\r |
| 1546 | \r |
| 1547 | @param AcpiTableInstance Instance to construct\r |
| 1548 | \r |
| 1549 | @return EFI_SUCCESS Instance initialized.\r |
| 1550 | @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.\r |
| 1551 | \r |
| 1552 | **/\r |
| 1553 | EFI_STATUS\r |
| 1554 | AcpiTableAcpiTableConstructor (\r |
| 1555 | EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance\r |
| 1556 | )\r |
| 1557 | {\r |
| 1558 | EFI_STATUS Status;\r |
| 1559 | UINT64 CurrentData;\r |
| 1560 | UINTN TotalSize;\r |
| 1561 | UINT8 *Pointer;\r |
| 1562 | EFI_PHYSICAL_ADDRESS PageAddress;\r |
| 1563 | \r |
| 1564 | //\r |
| 1565 | // Check for invalid input parameters\r |
| 1566 | //\r |
| 1567 | ASSERT (AcpiTableInstance);\r |
| 1568 | \r |
| 1569 | InitializeListHead (&AcpiTableInstance->TableList);\r |
| 1570 | AcpiTableInstance->CurrentHandle = 1;\r |
| 1571 | \r |
| 1572 | AcpiTableInstance->AcpiTableProtocol.InstallAcpiTable = InstallAcpiTable;\r |
| 1573 | AcpiTableInstance->AcpiTableProtocol.UninstallAcpiTable = UninstallAcpiTable;\r |
| 1574 | //\r |
| 1575 | // Create RSDP, RSDT, XSDT structures\r |
| 1576 | // Allocate all buffers\r |
| 1577 | //\r |
| 1578 | TotalSize = sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER) +\r |
| 1579 | sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER) +\r |
| 1580 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT\r |
| 1581 | EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32) +\r |
| 1582 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT\r |
| 1583 | EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32) +\r |
| 1584 | sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT\r |
| 1585 | EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT64);\r |
| 1586 | \r |
| 1587 | //\r |
| 1588 | // Allocate memory in the lower 32 bit of address range for\r |
| 1589 | // compatibility with ACPI 1.0 OS.\r |
| 1590 | //\r |
| 1591 | // This is done because ACPI 1.0 pointers are 32 bit values.\r |
| 1592 | // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.\r |
| 1593 | // There is no architectural reason these should be below 4GB, it is purely\r |
| 1594 | // for convenience of implementation that we force memory below 4GB.\r |
| 1595 | //\r |
| 1596 | PageAddress = 0xFFFFFFFF;\r |
| 1597 | Status = gBS->AllocatePages (\r |
| 1598 | AllocateMaxAddress,\r |
| 1599 | EfiACPIReclaimMemory,\r |
| 1600 | EFI_SIZE_TO_PAGES (TotalSize),\r |
| 1601 | &PageAddress\r |
| 1602 | );\r |
| 1603 | \r |
| 1604 | if (EFI_ERROR (Status)) {\r |
| 1605 | return EFI_OUT_OF_RESOURCES;\r |
| 1606 | }\r |
| 1607 | \r |
| 1608 | Pointer = (UINT8 *) (UINTN) PageAddress;\r |
| 1609 | ZeroMem (Pointer, TotalSize);\r |
| 1610 | \r |
| 1611 | AcpiTableInstance->Rsdp1 = (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;\r |
| 1612 | Pointer += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);\r |
| 1613 | AcpiTableInstance->Rsdp3 = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;\r |
| 1614 | Pointer += sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);\r |
| 1615 | \r |
| 1616 | AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;\r |
| 1617 | Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));\r |
| 1618 | AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;\r |
| 1619 | Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));\r |
| 1620 | \r |
| 1621 | AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;\r |
| 1622 | \r |
| 1623 | //\r |
| 1624 | // Initialize RSDP\r |
| 1625 | //\r |
| 1626 | CurrentData = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;\r |
| 1627 | CopyMem (&AcpiTableInstance->Rsdp1->Signature, &CurrentData, sizeof (UINT64));\r |
| 1628 | CopyMem (AcpiTableInstance->Rsdp1->OemId, EFI_ACPI_OEM_ID, 6);\r |
| 1629 | AcpiTableInstance->Rsdp1->Reserved = EFI_ACPI_RESERVED_BYTE;\r |
| 1630 | AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt1;\r |
| 1631 | \r |
| 1632 | CurrentData = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;\r |
| 1633 | CopyMem (&AcpiTableInstance->Rsdp3->Signature, &CurrentData, sizeof (UINT64));\r |
| 1634 | CopyMem (AcpiTableInstance->Rsdp3->OemId, EFI_ACPI_OEM_ID, 6);\r |
| 1635 | AcpiTableInstance->Rsdp3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION;\r |
| 1636 | AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt3;\r |
| 1637 | AcpiTableInstance->Rsdp3->Length = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);\r |
| 1638 | CurrentData = (UINT64) (UINTN) AcpiTableInstance->Xsdt;\r |
| 1639 | CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));\r |
| 1640 | SetMem (AcpiTableInstance->Rsdp3->Reserved, 3, EFI_ACPI_RESERVED_BYTE);\r |
| 1641 | \r |
| 1642 | //\r |
| 1643 | // Initialize Rsdt\r |
| 1644 | //\r |
| 1645 | // Note that we "reserve" one entry for the FADT so it can always be\r |
| 1646 | // at the beginning of the list of tables. Some OS don't seem\r |
| 1647 | // to find it correctly if it is too far down the list.\r |
| 1648 | //\r |
| 1649 | AcpiTableInstance->Rsdt1->Signature = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;\r |
| 1650 | AcpiTableInstance->Rsdt1->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);\r |
| 1651 | AcpiTableInstance->Rsdt1->Revision = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;\r |
| 1652 | CopyMem (AcpiTableInstance->Rsdt1->OemId, EFI_ACPI_OEM_ID, 6);\r |
| 1653 | CurrentData = EFI_ACPI_OEM_TABLE_ID;\r |
| 1654 | CopyMem (&AcpiTableInstance->Rsdt1->OemTableId, &CurrentData, sizeof (UINT64));\r |
| 1655 | AcpiTableInstance->Rsdt1->OemRevision = EFI_ACPI_OEM_REVISION;\r |
| 1656 | AcpiTableInstance->Rsdt1->CreatorId = EFI_ACPI_CREATOR_ID;\r |
| 1657 | AcpiTableInstance->Rsdt1->CreatorRevision = EFI_ACPI_CREATOR_REVISION;\r |
| 1658 | //\r |
| 1659 | // We always reserve first one for FADT\r |
| 1660 | //\r |
| 1661 | AcpiTableInstance->NumberOfTableEntries1 = 1;\r |
| 1662 | AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof(UINT32);\r |
| 1663 | \r |
| 1664 | AcpiTableInstance->Rsdt3->Signature = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;\r |
| 1665 | AcpiTableInstance->Rsdt3->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);\r |
| 1666 | AcpiTableInstance->Rsdt3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;\r |
| 1667 | CopyMem (AcpiTableInstance->Rsdt3->OemId, EFI_ACPI_OEM_ID, 6);\r |
| 1668 | CurrentData = EFI_ACPI_OEM_TABLE_ID;\r |
| 1669 | CopyMem (&AcpiTableInstance->Rsdt3->OemTableId, &CurrentData, sizeof (UINT64));\r |
| 1670 | AcpiTableInstance->Rsdt3->OemRevision = EFI_ACPI_OEM_REVISION;\r |
| 1671 | AcpiTableInstance->Rsdt3->CreatorId = EFI_ACPI_CREATOR_ID;\r |
| 1672 | AcpiTableInstance->Rsdt3->CreatorRevision = EFI_ACPI_CREATOR_REVISION;\r |
| 1673 | //\r |
| 1674 | // We always reserve first one for FADT\r |
| 1675 | //\r |
| 1676 | AcpiTableInstance->NumberOfTableEntries3 = 1;\r |
| 1677 | AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof(UINT32);\r |
| 1678 | \r |
| 1679 | //\r |
| 1680 | // Initialize Xsdt\r |
| 1681 | //\r |
| 1682 | AcpiTableInstance->Xsdt->Signature = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;\r |
| 1683 | AcpiTableInstance->Xsdt->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);\r |
| 1684 | AcpiTableInstance->Xsdt->Revision = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION;\r |
| 1685 | CopyMem (AcpiTableInstance->Xsdt->OemId, EFI_ACPI_OEM_ID, 6);\r |
| 1686 | CurrentData = EFI_ACPI_OEM_TABLE_ID;\r |
| 1687 | CopyMem (&AcpiTableInstance->Xsdt->OemTableId, &CurrentData, sizeof (UINT64));\r |
| 1688 | AcpiTableInstance->Xsdt->OemRevision = EFI_ACPI_OEM_REVISION;\r |
| 1689 | AcpiTableInstance->Xsdt->CreatorId = EFI_ACPI_CREATOR_ID;\r |
| 1690 | AcpiTableInstance->Xsdt->CreatorRevision = EFI_ACPI_CREATOR_REVISION;\r |
| 1691 | //\r |
| 1692 | // We always reserve first one for FADT\r |
| 1693 | //\r |
| 1694 | AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof(UINT64);\r |
| 1695 | \r |
| 1696 | ChecksumCommonTables (AcpiTableInstance);\r |
| 1697 | \r |
| 1698 | //\r |
| 1699 | // Completed successfully\r |
| 1700 | //\r |
| 1701 | return EFI_SUCCESS;\r |
| 1702 | }\r |
| 1703 | \r |
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