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1 /** @file
2 ACPI Table Protocol Implementation
3
4 Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
5 Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
10
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
13
14 **/
15
16 //
17 // Includes
18 //
19 #include "AcpiTable.h"
20 //
21 // The maximum number of tables that pre-allocated.
22 //
23 UINTN mEfiAcpiMaxNumTables = EFI_ACPI_MAX_NUM_TABLES;
24
25 //
26 // Allocation strategy to use for AllocatePages ().
27 // Runtime value depends on PcdExposedAcpiTableVersions.
28 //
29 STATIC EFI_ALLOCATE_TYPE mAcpiTableAllocType;
30
31 /**
32 This function adds an ACPI table to the table list. It will detect FACS and
33 allocate the correct type of memory and properly align the table.
34
35 @param AcpiTableInstance Instance of the protocol.
36 @param Table Table to add.
37 @param Checksum Does the table require checksumming.
38 @param Version The version of the list to add the table to.
39 @param Handle Pointer for returning the handle.
40
41 @return EFI_SUCCESS The function completed successfully.
42 @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
43 @return EFI_ABORTED The table is a duplicate of a table that is required
44 to be unique.
45
46 **/
47 EFI_STATUS
48 AddTableToList (
49 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
50 IN VOID *Table,
51 IN BOOLEAN Checksum,
52 IN EFI_ACPI_TABLE_VERSION Version,
53 OUT UINTN *Handle
54 );
55
56 /**
57 This function finds and removes the table specified by the handle.
58
59 @param AcpiTableInstance Instance of the protocol.
60 @param Version Bitmask of which versions to remove.
61 @param Handle Table to remove.
62
63 @return EFI_SUCCESS The function completed successfully.
64 @return EFI_ABORTED An error occurred.
65 @return EFI_NOT_FOUND Handle not found in table list.
66
67 **/
68 EFI_STATUS
69 RemoveTableFromList (
70 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
71 IN EFI_ACPI_TABLE_VERSION Version,
72 IN UINTN Handle
73 );
74
75 /**
76 This function calculates and updates an UINT8 checksum.
77
78 @param Buffer Pointer to buffer to checksum
79 @param Size Number of bytes to checksum
80 @param ChecksumOffset Offset to place the checksum result in
81
82 @return EFI_SUCCESS The function completed successfully.
83 **/
84 EFI_STATUS
85 AcpiPlatformChecksum (
86 IN VOID *Buffer,
87 IN UINTN Size,
88 IN UINTN ChecksumOffset
89 );
90
91 /**
92 Checksum all versions of the common tables, RSDP, RSDT, XSDT.
93
94 @param AcpiTableInstance Protocol instance private data.
95
96 @return EFI_SUCCESS The function completed successfully.
97
98 **/
99 EFI_STATUS
100 ChecksumCommonTables (
101 IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
102 );
103
104 //
105 // Protocol function implementations.
106 //
107
108 /**
109 This function publishes the specified versions of the ACPI tables by
110 installing EFI configuration table entries for them. Any combination of
111 table versions can be published.
112
113 @param AcpiTableInstance Instance of the protocol.
114 @param Version Version(s) to publish.
115
116 @return EFI_SUCCESS The function completed successfully.
117 @return EFI_ABORTED The function could not complete successfully.
118
119 **/
120 EFI_STATUS
121 EFIAPI
122 PublishTables (
123 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
124 IN EFI_ACPI_TABLE_VERSION Version
125 )
126 {
127 EFI_STATUS Status;
128 UINT32 *CurrentRsdtEntry;
129 VOID *CurrentXsdtEntry;
130 UINT64 Buffer64;
131
132 //
133 // Reorder tables as some operating systems don't seem to find the
134 // FADT correctly if it is not in the first few entries
135 //
136
137 //
138 // Add FADT as the first entry
139 //
140 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
141 CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiTableInstance->Rsdt1 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
142 *CurrentRsdtEntry = (UINT32) (UINTN) AcpiTableInstance->Fadt1;
143
144 CurrentRsdtEntry = (UINT32 *) ((UINT8 *) AcpiTableInstance->Rsdt3 + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
145 *CurrentRsdtEntry = (UINT32) (UINTN) AcpiTableInstance->Fadt3;
146 }
147 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
148 CurrentXsdtEntry = (VOID *) ((UINT8 *) AcpiTableInstance->Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER));
149 //
150 // Add entry to XSDT, XSDT expects 64 bit pointers, but
151 // the table pointers in XSDT are not aligned on 8 byte boundary.
152 //
153 Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Fadt3;
154 CopyMem (
155 CurrentXsdtEntry,
156 &Buffer64,
157 sizeof (UINT64)
158 );
159 }
160
161 //
162 // Do checksum again because Dsdt/Xsdt is updated.
163 //
164 ChecksumCommonTables (AcpiTableInstance);
165
166 //
167 // Add the RSD_PTR to the system table and store that we have installed the
168 // tables.
169 //
170 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
171 Status = gBS->InstallConfigurationTable (&gEfiAcpi10TableGuid, AcpiTableInstance->Rsdp1);
172 if (EFI_ERROR (Status)) {
173 return EFI_ABORTED;
174 }
175 }
176
177 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
178 Status = gBS->InstallConfigurationTable (&gEfiAcpiTableGuid, AcpiTableInstance->Rsdp3);
179 if (EFI_ERROR (Status)) {
180 return EFI_ABORTED;
181 }
182 }
183
184 return EFI_SUCCESS;
185 }
186
187
188 /**
189 Installs an ACPI table into the RSDT/XSDT.
190 Note that the ACPI table should be checksumed before installing it.
191 Otherwise it will assert.
192
193 @param This Protocol instance pointer.
194 @param AcpiTableBuffer A pointer to a buffer containing the ACPI table to be installed.
195 @param AcpiTableBufferSize Specifies the size, in bytes, of the AcpiTableBuffer buffer.
196 @param TableKey Reurns a key to refer to the ACPI table.
197
198 @return EFI_SUCCESS The table was successfully inserted.
199 @return EFI_INVALID_PARAMETER Either AcpiTableBuffer is NULL, TableKey is NULL, or AcpiTableBufferSize
200 and the size field embedded in the ACPI table pointed to by AcpiTableBuffer
201 are not in sync.
202 @return EFI_OUT_OF_RESOURCES Insufficient resources exist to complete the request.
203 @retval EFI_ACCESS_DENIED The table signature matches a table already
204 present in the system and platform policy
205 does not allow duplicate tables of this type.
206
207 **/
208 EFI_STATUS
209 EFIAPI
210 InstallAcpiTable (
211 IN EFI_ACPI_TABLE_PROTOCOL *This,
212 IN VOID *AcpiTableBuffer,
213 IN UINTN AcpiTableBufferSize,
214 OUT UINTN *TableKey
215 )
216 {
217 EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
218 EFI_STATUS Status;
219 VOID *AcpiTableBufferConst;
220 EFI_ACPI_TABLE_VERSION Version;
221
222 //
223 // Check for invalid input parameters
224 //
225 if ((AcpiTableBuffer == NULL) || (TableKey == NULL)
226 || (((EFI_ACPI_DESCRIPTION_HEADER *) AcpiTableBuffer)->Length != AcpiTableBufferSize)) {
227 return EFI_INVALID_PARAMETER;
228 }
229
230 Version = PcdGet32 (PcdAcpiExposedTableVersions);
231
232 //
233 // Get the instance of the ACPI table protocol
234 //
235 AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
236
237 //
238 // Install the ACPI table
239 //
240 AcpiTableBufferConst = AllocateCopyPool (AcpiTableBufferSize,AcpiTableBuffer);
241 *TableKey = 0;
242 Status = AddTableToList (
243 AcpiTableInstance,
244 AcpiTableBufferConst,
245 TRUE,
246 Version,
247 TableKey
248 );
249 if (!EFI_ERROR (Status)) {
250 Status = PublishTables (
251 AcpiTableInstance,
252 Version
253 );
254 }
255 FreePool (AcpiTableBufferConst);
256
257 //
258 // Add a new table successfully, notify registed callback
259 //
260 if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
261 if (!EFI_ERROR (Status)) {
262 SdtNotifyAcpiList (
263 AcpiTableInstance,
264 Version,
265 *TableKey
266 );
267 }
268 }
269
270 return Status;
271 }
272
273
274 /**
275 Removes an ACPI table from the RSDT/XSDT.
276
277 @param This Protocol instance pointer.
278 @param TableKey Specifies the table to uninstall. The key was returned from InstallAcpiTable().
279
280 @return EFI_SUCCESS The table was successfully uninstalled.
281 @return EFI_NOT_FOUND TableKey does not refer to a valid key for a table entry.
282
283 **/
284 EFI_STATUS
285 EFIAPI
286 UninstallAcpiTable (
287 IN EFI_ACPI_TABLE_PROTOCOL *This,
288 IN UINTN TableKey
289 )
290 {
291 EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance;
292 EFI_STATUS Status;
293
294 //
295 // Get the instance of the ACPI table protocol
296 //
297 AcpiTableInstance = EFI_ACPI_TABLE_INSTANCE_FROM_THIS (This);
298
299 //
300 // Uninstall the ACPI table
301 //
302 Status = RemoveTableFromList (
303 AcpiTableInstance,
304 EFI_ACPI_TABLE_VERSION_1_0B | ACPI_TABLE_VERSION_GTE_2_0,
305 TableKey
306 );
307 if (!EFI_ERROR (Status)) {
308 Status = PublishTables (
309 AcpiTableInstance,
310 EFI_ACPI_TABLE_VERSION_1_0B | ACPI_TABLE_VERSION_GTE_2_0
311 );
312 }
313
314 if (EFI_ERROR (Status)) {
315 return EFI_NOT_FOUND;
316 } else {
317 return EFI_SUCCESS;
318 }
319 }
320
321 /**
322 If the number of APCI tables exceeds the preallocated max table number, enlarge the table buffer.
323
324 @param AcpiTableInstance ACPI table protocol instance data structure.
325
326 @return EFI_SUCCESS reallocate the table beffer successfully.
327 @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
328
329 **/
330 EFI_STATUS
331 ReallocateAcpiTableBuffer (
332 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
333 )
334 {
335 UINTN NewMaxTableNumber;
336 UINTN TotalSize;
337 UINT8 *Pointer;
338 EFI_PHYSICAL_ADDRESS PageAddress;
339 EFI_ACPI_TABLE_INSTANCE TempPrivateData;
340 EFI_STATUS Status;
341 UINT64 CurrentData;
342
343 CopyMem (&TempPrivateData, AcpiTableInstance, sizeof (EFI_ACPI_TABLE_INSTANCE));
344 //
345 // Enlarge the max table number from mEfiAcpiMaxNumTables to mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES
346 //
347 NewMaxTableNumber = mEfiAcpiMaxNumTables + EFI_ACPI_MAX_NUM_TABLES;
348 //
349 // Create RSDT, XSDT structures and allocate buffers.
350 //
351 TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
352 NewMaxTableNumber * sizeof (UINT64);
353
354 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
355 TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
356 NewMaxTableNumber * sizeof (UINT32) +
357 sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
358 NewMaxTableNumber * sizeof (UINT32);
359 }
360
361 //
362 // Allocate memory in the lower 32 bit of address range for
363 // compatibility with ACPI 1.0 OS.
364 //
365 // This is done because ACPI 1.0 pointers are 32 bit values.
366 // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
367 // There is no architectural reason these should be below 4GB, it is purely
368 // for convenience of implementation that we force memory below 4GB.
369 //
370 PageAddress = 0xFFFFFFFF;
371 Status = gBS->AllocatePages (
372 mAcpiTableAllocType,
373 EfiACPIReclaimMemory,
374 EFI_SIZE_TO_PAGES (TotalSize),
375 &PageAddress
376 );
377
378 if (EFI_ERROR (Status)) {
379 return EFI_OUT_OF_RESOURCES;
380 }
381
382 Pointer = (UINT8 *) (UINTN) PageAddress;
383 ZeroMem (Pointer, TotalSize);
384
385 AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
386 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
387 Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
388 AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
389 Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + NewMaxTableNumber * sizeof (UINT32));
390 }
391 AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
392
393 //
394 // Update RSDP to point to the new Rsdt and Xsdt address.
395 //
396 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
397 AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt1;
398 AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt3;
399 }
400 CurrentData = (UINT64) (UINTN) AcpiTableInstance->Xsdt;
401 CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
402
403 //
404 // copy the original Rsdt1, Rsdt3 and Xsdt structure to new buffer
405 //
406 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
407 CopyMem (AcpiTableInstance->Rsdt1, TempPrivateData.Rsdt1, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
408 CopyMem (AcpiTableInstance->Rsdt3, TempPrivateData.Rsdt3, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT32)));
409 }
410 CopyMem (AcpiTableInstance->Xsdt, TempPrivateData.Xsdt, (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + mEfiAcpiMaxNumTables * sizeof (UINT64)));
411
412 //
413 // Calculate orignal ACPI table buffer size
414 //
415 TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
416 mEfiAcpiMaxNumTables * sizeof (UINT64);
417
418 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
419 TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
420 mEfiAcpiMaxNumTables * sizeof (UINT32) +
421 sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
422 mEfiAcpiMaxNumTables * sizeof (UINT32);
423 }
424
425 gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)TempPrivateData.Rsdt1, EFI_SIZE_TO_PAGES (TotalSize));
426
427 //
428 // Update the Max ACPI table number
429 //
430 mEfiAcpiMaxNumTables = NewMaxTableNumber;
431 return EFI_SUCCESS;
432 }
433 /**
434 This function adds an ACPI table to the table list. It will detect FACS and
435 allocate the correct type of memory and properly align the table.
436
437 @param AcpiTableInstance Instance of the protocol.
438 @param Table Table to add.
439 @param Checksum Does the table require checksumming.
440 @param Version The version of the list to add the table to.
441 @param Handle Pointer for returning the handle.
442
443 @return EFI_SUCCESS The function completed successfully.
444 @return EFI_OUT_OF_RESOURCES Could not allocate a required resource.
445 @retval EFI_ACCESS_DENIED The table signature matches a table already
446 present in the system and platform policy
447 does not allow duplicate tables of this type.
448
449 **/
450 EFI_STATUS
451 AddTableToList (
452 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
453 IN VOID *Table,
454 IN BOOLEAN Checksum,
455 IN EFI_ACPI_TABLE_VERSION Version,
456 OUT UINTN *Handle
457 )
458 {
459 EFI_STATUS Status;
460 EFI_ACPI_TABLE_LIST *CurrentTableList;
461 UINT32 CurrentTableSignature;
462 UINT32 CurrentTableSize;
463 UINT32 *CurrentRsdtEntry;
464 VOID *CurrentXsdtEntry;
465 UINT64 Buffer64;
466 BOOLEAN AddToRsdt;
467
468 //
469 // Check for invalid input parameters
470 //
471 ASSERT (AcpiTableInstance);
472 ASSERT (Table);
473 ASSERT (Handle);
474
475 //
476 // Init locals
477 //
478 AddToRsdt = TRUE;
479
480 //
481 // Create a new list entry
482 //
483 CurrentTableList = AllocatePool (sizeof (EFI_ACPI_TABLE_LIST));
484 ASSERT (CurrentTableList);
485
486 //
487 // Determine table type and size
488 //
489 CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table)->Signature;
490 CurrentTableSize = ((EFI_ACPI_COMMON_HEADER *) Table)->Length;
491
492 //
493 // Allocate a buffer for the table. All tables are allocated in the lower 32 bits of address space
494 // for backwards compatibility with ACPI 1.0 OS.
495 //
496 // This is done because ACPI 1.0 pointers are 32 bit values.
497 // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
498 // There is no architectural reason these should be below 4GB, it is purely
499 // for convenience of implementation that we force memory below 4GB.
500 //
501 CurrentTableList->PageAddress = 0xFFFFFFFF;
502 CurrentTableList->NumberOfPages = EFI_SIZE_TO_PAGES (CurrentTableSize);
503
504 //
505 // Allocation memory type depends on the type of the table
506 //
507 if ((CurrentTableSignature == EFI_ACPI_2_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
508 (CurrentTableSignature == EFI_ACPI_4_0_UEFI_ACPI_DATA_TABLE_SIGNATURE)) {
509 //
510 // Allocate memory for the FACS. This structure must be aligned
511 // on a 64 byte boundary and must be ACPI NVS memory.
512 // Using AllocatePages should ensure that it is always aligned.
513 // Do not change signature for new ACPI version because they are same.
514 //
515 // UEFI table also need to be in ACPI NVS memory, because some data field
516 // could be updated by OS present agent. For example, BufferPtrAddress in
517 // SMM communication ACPI table.
518 //
519 ASSERT ((EFI_PAGE_SIZE % 64) == 0);
520 Status = gBS->AllocatePages (
521 AllocateMaxAddress,
522 EfiACPIMemoryNVS,
523 CurrentTableList->NumberOfPages,
524 &CurrentTableList->PageAddress
525 );
526 } else {
527 //
528 // All other tables are ACPI reclaim memory, no alignment requirements.
529 //
530 Status = gBS->AllocatePages (
531 mAcpiTableAllocType,
532 EfiACPIReclaimMemory,
533 CurrentTableList->NumberOfPages,
534 &CurrentTableList->PageAddress
535 );
536 }
537 //
538 // Check return value from memory alloc.
539 //
540 if (EFI_ERROR (Status)) {
541 gBS->FreePool (CurrentTableList);
542 return EFI_OUT_OF_RESOURCES;
543 }
544 //
545 // Update the table pointer with the allocated memory start
546 //
547 CurrentTableList->Table = (EFI_ACPI_COMMON_HEADER *) (UINTN) CurrentTableList->PageAddress;
548
549 //
550 // Initialize the table contents
551 //
552 CurrentTableList->Signature = EFI_ACPI_TABLE_LIST_SIGNATURE;
553 CopyMem (CurrentTableList->Table, Table, CurrentTableSize);
554 CurrentTableList->Handle = AcpiTableInstance->CurrentHandle++;
555 *Handle = CurrentTableList->Handle;
556 CurrentTableList->Version = Version;
557
558 //
559 // Update internal pointers if this is a required table. If it is a required
560 // table and a table of that type already exists, return an error.
561 //
562 // Calculate the checksum if the table is not FACS.
563 //
564 switch (CurrentTableSignature) {
565
566 case EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
567 //
568 // We don't add the FADT in the standard way because some
569 // OS expect the FADT to be early in the table list.
570 // So we always add it as the first element in the list.
571 //
572 AddToRsdt = FALSE;
573
574 //
575 // Check that the table has not been previously added.
576 //
577 if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Fadt1 != NULL) ||
578 ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0 && AcpiTableInstance->Fadt3 != NULL)
579 ) {
580 gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
581 gBS->FreePool (CurrentTableList);
582 return EFI_ACCESS_DENIED;
583 }
584 //
585 // Add the table to the appropriate table version
586 //
587 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
588 //
589 // Save a pointer to the table
590 //
591 AcpiTableInstance->Fadt1 = (EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;
592
593 //
594 // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
595 //
596 AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs1;
597 AcpiTableInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt1;
598
599 //
600 // RSDP OEM information is updated to match the FADT OEM information
601 //
602 CopyMem (
603 &AcpiTableInstance->Rsdp1->OemId,
604 &AcpiTableInstance->Fadt1->Header.OemId,
605 6
606 );
607
608 //
609 // RSDT OEM information is updated to match the FADT OEM information.
610 //
611 CopyMem (
612 &AcpiTableInstance->Rsdt1->OemId,
613 &AcpiTableInstance->Fadt1->Header.OemId,
614 6
615 );
616
617 CopyMem (
618 &AcpiTableInstance->Rsdt1->OemTableId,
619 &AcpiTableInstance->Fadt1->Header.OemTableId,
620 sizeof (UINT64)
621 );
622 AcpiTableInstance->Rsdt1->OemRevision = AcpiTableInstance->Fadt1->Header.OemRevision;
623 }
624
625 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
626 //
627 // Save a pointer to the table
628 //
629 AcpiTableInstance->Fadt3 = (EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE *) CurrentTableList->Table;
630
631 //
632 // Update pointers in FADT. If tables don't exist this will put NULL pointers there.
633 // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
634 // vice-versa.
635 //
636 if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
637 AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
638 ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
639 } else {
640 Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
641 CopyMem (
642 &AcpiTableInstance->Fadt3->XFirmwareCtrl,
643 &Buffer64,
644 sizeof (UINT64)
645 );
646 AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
647 }
648 if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
649 AcpiTableInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt3;
650 ZeroMem (&AcpiTableInstance->Fadt3->XDsdt, sizeof (UINT64));
651 } else {
652 Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Dsdt3;
653 CopyMem (
654 &AcpiTableInstance->Fadt3->XDsdt,
655 &Buffer64,
656 sizeof (UINT64)
657 );
658 AcpiTableInstance->Fadt3->Dsdt = 0;
659 }
660
661 //
662 // RSDP OEM information is updated to match the FADT OEM information
663 //
664 CopyMem (
665 &AcpiTableInstance->Rsdp3->OemId,
666 &AcpiTableInstance->Fadt3->Header.OemId,
667 6
668 );
669
670 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
671 //
672 // RSDT OEM information is updated to match FADT OEM information.
673 //
674 CopyMem (
675 &AcpiTableInstance->Rsdt3->OemId,
676 &AcpiTableInstance->Fadt3->Header.OemId,
677 6
678 );
679 CopyMem (
680 &AcpiTableInstance->Rsdt3->OemTableId,
681 &AcpiTableInstance->Fadt3->Header.OemTableId,
682 sizeof (UINT64)
683 );
684 AcpiTableInstance->Rsdt3->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
685 }
686
687 //
688 // XSDT OEM information is updated to match FADT OEM information.
689 //
690 CopyMem (
691 &AcpiTableInstance->Xsdt->OemId,
692 &AcpiTableInstance->Fadt3->Header.OemId,
693 6
694 );
695 CopyMem (
696 &AcpiTableInstance->Xsdt->OemTableId,
697 &AcpiTableInstance->Fadt3->Header.OemTableId,
698 sizeof (UINT64)
699 );
700 AcpiTableInstance->Xsdt->OemRevision = AcpiTableInstance->Fadt3->Header.OemRevision;
701 }
702 //
703 // Checksum the table
704 //
705 if (Checksum) {
706 AcpiPlatformChecksum (
707 CurrentTableList->Table,
708 CurrentTableList->Table->Length,
709 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
710 Checksum)
711 );
712 }
713 break;
714
715 case EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
716 //
717 // Check that the table has not been previously added.
718 //
719 if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Facs1 != NULL) ||
720 ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0 && AcpiTableInstance->Facs3 != NULL)
721 ) {
722 gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
723 gBS->FreePool (CurrentTableList);
724 return EFI_ACCESS_DENIED;
725 }
726 //
727 // FACS is referenced by FADT and is not part of RSDT
728 //
729 AddToRsdt = FALSE;
730
731 //
732 // Add the table to the appropriate table version
733 //
734 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
735 //
736 // Save a pointer to the table
737 //
738 AcpiTableInstance->Facs1 = (EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;
739
740 //
741 // If FADT already exists, update table pointers.
742 //
743 if (AcpiTableInstance->Fadt1 != NULL) {
744 AcpiTableInstance->Fadt1->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs1;
745
746 //
747 // Checksum FADT table
748 //
749 AcpiPlatformChecksum (
750 AcpiTableInstance->Fadt1,
751 AcpiTableInstance->Fadt1->Header.Length,
752 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
753 Checksum)
754 );
755 }
756 }
757
758 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
759 //
760 // Save a pointer to the table
761 //
762 AcpiTableInstance->Facs3 = (EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE *) CurrentTableList->Table;
763
764 //
765 // If FADT already exists, update table pointers.
766 //
767 if (AcpiTableInstance->Fadt3 != NULL) {
768 //
769 // Note: If the FIRMWARE_CTRL is non-zero, then X_FIRMWARE_CTRL must be zero, and
770 // vice-versa.
771 //
772 if ((UINT64)(UINTN)AcpiTableInstance->Facs3 < BASE_4GB) {
773 AcpiTableInstance->Fadt3->FirmwareCtrl = (UINT32) (UINTN) AcpiTableInstance->Facs3;
774 ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
775 } else {
776 Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Facs3;
777 CopyMem (
778 &AcpiTableInstance->Fadt3->XFirmwareCtrl,
779 &Buffer64,
780 sizeof (UINT64)
781 );
782 AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
783 }
784
785 //
786 // Checksum FADT table
787 //
788 AcpiPlatformChecksum (
789 AcpiTableInstance->Fadt3,
790 AcpiTableInstance->Fadt3->Header.Length,
791 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
792 Checksum)
793 );
794 }
795 }
796
797 break;
798
799 case EFI_ACPI_1_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
800 //
801 // Check that the table has not been previously added.
802 //
803 if (((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0 && AcpiTableInstance->Dsdt1 != NULL) ||
804 ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0 && AcpiTableInstance->Dsdt3 != NULL)
805 ) {
806 gBS->FreePages (CurrentTableList->PageAddress, CurrentTableList->NumberOfPages);
807 gBS->FreePool (CurrentTableList);
808 return EFI_ACCESS_DENIED;
809 }
810 //
811 // DSDT is referenced by FADT and is not part of RSDT
812 //
813 AddToRsdt = FALSE;
814
815 //
816 // Add the table to the appropriate table version
817 //
818 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
819 //
820 // Save a pointer to the table
821 //
822 AcpiTableInstance->Dsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;
823
824 //
825 // If FADT already exists, update table pointers.
826 //
827 if (AcpiTableInstance->Fadt1 != NULL) {
828 AcpiTableInstance->Fadt1->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt1;
829
830 //
831 // Checksum FADT table
832 //
833 AcpiPlatformChecksum (
834 AcpiTableInstance->Fadt1,
835 AcpiTableInstance->Fadt1->Header.Length,
836 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
837 Checksum)
838 );
839 }
840 }
841
842 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
843 //
844 // Save a pointer to the table
845 //
846 AcpiTableInstance->Dsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) CurrentTableList->Table;
847
848 //
849 // If FADT already exists, update table pointers.
850 //
851 if (AcpiTableInstance->Fadt3 != NULL) {
852 if ((UINT64)(UINTN)AcpiTableInstance->Dsdt3 < BASE_4GB) {
853 AcpiTableInstance->Fadt3->Dsdt = (UINT32) (UINTN) AcpiTableInstance->Dsdt3;
854 }
855 Buffer64 = (UINT64) (UINTN) AcpiTableInstance->Dsdt3;
856 CopyMem (
857 &AcpiTableInstance->Fadt3->XDsdt,
858 &Buffer64,
859 sizeof (UINT64)
860 );
861
862 //
863 // Checksum FADT table
864 //
865 AcpiPlatformChecksum (
866 AcpiTableInstance->Fadt3,
867 AcpiTableInstance->Fadt3->Header.Length,
868 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
869 Checksum)
870 );
871 }
872 }
873 //
874 // Checksum the table
875 //
876 if (Checksum) {
877 AcpiPlatformChecksum (
878 CurrentTableList->Table,
879 CurrentTableList->Table->Length,
880 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
881 Checksum)
882 );
883 }
884 break;
885
886 default:
887 //
888 // Checksum the table
889 //
890 if (Checksum) {
891 AcpiPlatformChecksum (
892 CurrentTableList->Table,
893 CurrentTableList->Table->Length,
894 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
895 Checksum)
896 );
897 }
898 break;
899 }
900 //
901 // Add the table to the current list of tables
902 //
903 InsertTailList (&AcpiTableInstance->TableList, &CurrentTableList->Link);
904
905 //
906 // Add the table to RSDT and/or XSDT table entry lists.
907 //
908 //
909 // Add to ACPI 1.0b table tree
910 //
911 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
912 if (AddToRsdt) {
913 //
914 // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
915 //
916 if (AcpiTableInstance->NumberOfTableEntries1 >= mEfiAcpiMaxNumTables) {
917 Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
918 ASSERT_EFI_ERROR (Status);
919 }
920 CurrentRsdtEntry = (UINT32 *)
921 (
922 (UINT8 *) AcpiTableInstance->Rsdt1 +
923 sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
924 AcpiTableInstance->NumberOfTableEntries1 *
925 sizeof (UINT32)
926 );
927
928 //
929 // Add entry to the RSDT unless its the FACS or DSDT
930 //
931 *CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;
932
933 //
934 // Update RSDT length
935 //
936 AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof (UINT32);
937
938 AcpiTableInstance->NumberOfTableEntries1++;
939 }
940 }
941 //
942 // Add to ACPI 2.0/3.0 table tree
943 //
944 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
945 if (AddToRsdt) {
946 //
947 // If the table number exceed the gEfiAcpiMaxNumTables, enlarge the table buffer
948 //
949 if (AcpiTableInstance->NumberOfTableEntries3 >= mEfiAcpiMaxNumTables) {
950 Status = ReallocateAcpiTableBuffer (AcpiTableInstance);
951 ASSERT_EFI_ERROR (Status);
952 }
953
954 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
955 //
956 // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
957 // If it becomes necessary to maintain separate table lists, changes will be required.
958 //
959 CurrentRsdtEntry = (UINT32 *)
960 (
961 (UINT8 *) AcpiTableInstance->Rsdt3 +
962 sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
963 AcpiTableInstance->NumberOfTableEntries3 *
964 sizeof (UINT32)
965 );
966
967 //
968 // Add entry to the RSDT
969 //
970 *CurrentRsdtEntry = (UINT32) (UINTN) CurrentTableList->Table;
971
972 //
973 // Update RSDT length
974 //
975 AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof (UINT32);
976 }
977
978 //
979 // This pointer must not be directly dereferenced as the XSDT entries may not
980 // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
981 //
982 CurrentXsdtEntry = (VOID *)
983 (
984 (UINT8 *) AcpiTableInstance->Xsdt +
985 sizeof (EFI_ACPI_DESCRIPTION_HEADER) +
986 AcpiTableInstance->NumberOfTableEntries3 *
987 sizeof (UINT64)
988 );
989
990 //
991 // Add entry to XSDT, XSDT expects 64 bit pointers, but
992 // the table pointers in XSDT are not aligned on 8 byte boundary.
993 //
994 Buffer64 = (UINT64) (UINTN) CurrentTableList->Table;
995 CopyMem (
996 CurrentXsdtEntry,
997 &Buffer64,
998 sizeof (UINT64)
999 );
1000
1001 //
1002 // Update length
1003 //
1004 AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof (UINT64);
1005
1006 AcpiTableInstance->NumberOfTableEntries3++;
1007 }
1008 }
1009
1010 ChecksumCommonTables (AcpiTableInstance);
1011 return EFI_SUCCESS;
1012 }
1013
1014
1015 /**
1016 This function finds the table specified by the handle and returns a pointer to it.
1017 If the handle is not found, EFI_NOT_FOUND is returned and the contents of Table are
1018 undefined.
1019
1020 @param Handle Table to find.
1021 @param TableList Table list to search
1022 @param Table Pointer to table found.
1023
1024 @return EFI_SUCCESS The function completed successfully.
1025 @return EFI_NOT_FOUND No table found matching the handle specified.
1026
1027 **/
1028 EFI_STATUS
1029 FindTableByHandle (
1030 IN UINTN Handle,
1031 IN LIST_ENTRY *TableList,
1032 OUT EFI_ACPI_TABLE_LIST **Table
1033 )
1034 {
1035 LIST_ENTRY *CurrentLink;
1036 EFI_ACPI_TABLE_LIST *CurrentTable;
1037
1038 //
1039 // Check for invalid input parameters
1040 //
1041 ASSERT (Table);
1042
1043 //
1044 // Find the table
1045 //
1046 CurrentLink = TableList->ForwardLink;
1047
1048 while (CurrentLink != TableList) {
1049 CurrentTable = EFI_ACPI_TABLE_LIST_FROM_LINK (CurrentLink);
1050 if (CurrentTable->Handle == Handle) {
1051 //
1052 // Found handle, so return this table.
1053 //
1054 *Table = CurrentTable;
1055 return EFI_SUCCESS;
1056 }
1057
1058 CurrentLink = CurrentLink->ForwardLink;
1059 }
1060 //
1061 // Table not found
1062 //
1063 return EFI_NOT_FOUND;
1064 }
1065
1066
1067 /**
1068 This function removes a basic table from the RSDT and/or XSDT.
1069 For Acpi 1.0 tables, pass in the Rsdt.
1070 For Acpi 2.0 tables, pass in both Rsdt and Xsdt.
1071
1072 @param Table Pointer to table found.
1073 @param NumberOfTableEntries Current number of table entries in the RSDT/XSDT
1074 @param Rsdt Pointer to the RSDT to remove from
1075 @param Xsdt Pointer to the Xsdt to remove from
1076
1077 @return EFI_SUCCESS The function completed successfully.
1078 @return EFI_INVALID_PARAMETER The table was not found in both Rsdt and Xsdt.
1079
1080 **/
1081 EFI_STATUS
1082 RemoveTableFromRsdt (
1083 IN OUT EFI_ACPI_TABLE_LIST * Table,
1084 IN OUT UINTN *NumberOfTableEntries,
1085 IN OUT EFI_ACPI_DESCRIPTION_HEADER * Rsdt OPTIONAL,
1086 IN OUT EFI_ACPI_DESCRIPTION_HEADER * Xsdt OPTIONAL
1087 )
1088 {
1089 UINT32 *CurrentRsdtEntry;
1090 VOID *CurrentXsdtEntry;
1091 UINT64 CurrentTablePointer64;
1092 UINTN Index;
1093
1094 //
1095 // Check for invalid input parameters
1096 //
1097 ASSERT (Table);
1098 ASSERT (NumberOfTableEntries);
1099 ASSERT (Rsdt || Xsdt);
1100
1101 //
1102 // Find the table entry in the RSDT and XSDT
1103 //
1104 for (Index = 0; Index < *NumberOfTableEntries; Index++) {
1105 //
1106 // At this time, it is assumed that RSDT and XSDT maintain parallel lists of tables.
1107 // If it becomes necessary to maintain separate table lists, changes will be required.
1108 //
1109 if (Rsdt != NULL) {
1110 CurrentRsdtEntry = (UINT32 *) ((UINT8 *) Rsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT32));
1111 } else {
1112 CurrentRsdtEntry = NULL;
1113 }
1114 if (Xsdt != NULL) {
1115 //
1116 // This pointer must not be directly dereferenced as the XSDT entries may not
1117 // be 64 bit aligned resulting in a possible fault. Use CopyMem to update.
1118 //
1119 CurrentXsdtEntry = (VOID *) ((UINT8 *) Xsdt + sizeof (EFI_ACPI_DESCRIPTION_HEADER) + Index * sizeof (UINT64));
1120
1121 //
1122 // Read the entry value out of the XSDT
1123 //
1124 CopyMem (&CurrentTablePointer64, CurrentXsdtEntry, sizeof (UINT64));
1125 } else {
1126 //
1127 // Initialize to NULL
1128 //
1129 CurrentXsdtEntry = 0;
1130 CurrentTablePointer64 = 0;
1131 }
1132 //
1133 // Check if we have found the corresponding entry in both RSDT and XSDT
1134 //
1135 if (((Rsdt == NULL) || *CurrentRsdtEntry == (UINT32) (UINTN) Table->Table) &&
1136 ((Xsdt == NULL) || CurrentTablePointer64 == (UINT64) (UINTN) Table->Table)
1137 ) {
1138 //
1139 // Found entry, so copy all following entries and shrink table
1140 // We actually copy all + 1 to copy the initialized value of memory over
1141 // the last entry.
1142 //
1143 if (Rsdt != NULL) {
1144 CopyMem (CurrentRsdtEntry, CurrentRsdtEntry + 1, (*NumberOfTableEntries - Index) * sizeof (UINT32));
1145 Rsdt->Length = Rsdt->Length - sizeof (UINT32);
1146 }
1147 if (Xsdt != NULL) {
1148 CopyMem (CurrentXsdtEntry, ((UINT64 *) CurrentXsdtEntry) + 1, (*NumberOfTableEntries - Index) * sizeof (UINT64));
1149 Xsdt->Length = Xsdt->Length - sizeof (UINT64);
1150 }
1151 break;
1152 } else if (Index + 1 == *NumberOfTableEntries) {
1153 //
1154 // At the last entry, and table not found
1155 //
1156 return EFI_INVALID_PARAMETER;
1157 }
1158 }
1159 //
1160 // Checksum the tables
1161 //
1162 if (Rsdt != NULL) {
1163 AcpiPlatformChecksum (
1164 Rsdt,
1165 Rsdt->Length,
1166 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1167 Checksum)
1168 );
1169 }
1170
1171 if (Xsdt != NULL) {
1172 AcpiPlatformChecksum (
1173 Xsdt,
1174 Xsdt->Length,
1175 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1176 Checksum)
1177 );
1178 }
1179 //
1180 // Decrement the number of tables
1181 //
1182 (*NumberOfTableEntries)--;
1183
1184 return EFI_SUCCESS;
1185 }
1186
1187
1188 /**
1189 This function removes a table and frees any associated memory.
1190
1191 @param AcpiTableInstance Instance of the protocol.
1192 @param Version Version(s) to delete.
1193 @param Table Pointer to table found.
1194
1195 @return EFI_SUCCESS The function completed successfully.
1196
1197 **/
1198 EFI_STATUS
1199 DeleteTable (
1200 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
1201 IN EFI_ACPI_TABLE_VERSION Version,
1202 IN OUT EFI_ACPI_TABLE_LIST *Table
1203 )
1204 {
1205 UINT32 CurrentTableSignature;
1206 BOOLEAN RemoveFromRsdt;
1207
1208 //
1209 // Check for invalid input parameters
1210 //
1211 ASSERT (AcpiTableInstance);
1212 ASSERT (Table);
1213
1214 //
1215 // Init locals
1216 //
1217 RemoveFromRsdt = TRUE;
1218 //
1219 // Check for Table->Table
1220 //
1221 ASSERT (Table->Table != NULL);
1222 CurrentTableSignature = ((EFI_ACPI_COMMON_HEADER *) Table->Table)->Signature;
1223
1224 //
1225 // Basic tasks to accomplish delete are:
1226 // Determine removal requirements (in RSDT/XSDT or not)
1227 // Remove entry from RSDT/XSDT
1228 // Remove any table references to the table
1229 // If no one is using the table
1230 // Free the table (removing pointers from private data and tables)
1231 // Remove from list
1232 // Free list structure
1233 //
1234 //
1235 // Determine if this table is in the RSDT or XSDT
1236 //
1237 if ((CurrentTableSignature == EFI_ACPI_1_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE) ||
1238 (CurrentTableSignature == EFI_ACPI_2_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) ||
1239 (CurrentTableSignature == EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE)
1240 ) {
1241 RemoveFromRsdt = FALSE;
1242 }
1243 //
1244 // We don't remove the FADT in the standard way because some
1245 // OS expect the FADT to be early in the table list.
1246 // So we always put it as the first element in the list.
1247 //
1248 if (CurrentTableSignature == EFI_ACPI_1_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE) {
1249 RemoveFromRsdt = FALSE;
1250 }
1251
1252 //
1253 // Remove the table from RSDT and XSDT
1254 //
1255 if (Table->Table != NULL) {
1256 //
1257 // This is a basic table, remove it from any lists and the Rsdt and/or Xsdt
1258 //
1259 if (Version & EFI_ACPI_TABLE_VERSION_NONE & Table->Version) {
1260 //
1261 // Remove this version from the table
1262 //
1263 Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_NONE;
1264 }
1265
1266 if (Version & EFI_ACPI_TABLE_VERSION_1_0B & Table->Version) {
1267 //
1268 // Remove this version from the table
1269 //
1270 Table->Version = Table->Version &~EFI_ACPI_TABLE_VERSION_1_0B;
1271
1272 //
1273 // Remove from Rsdt. We don't care about the return value because it is
1274 // acceptable for the table to not exist in Rsdt.
1275 // We didn't add some tables so we don't remove them.
1276 //
1277 if (RemoveFromRsdt) {
1278 RemoveTableFromRsdt (
1279 Table,
1280 &AcpiTableInstance->NumberOfTableEntries1,
1281 AcpiTableInstance->Rsdt1,
1282 NULL
1283 );
1284 }
1285 }
1286
1287 if (Version & ACPI_TABLE_VERSION_GTE_2_0 & Table->Version) {
1288 //
1289 // Remove this version from the table
1290 //
1291 Table->Version = Table->Version &~(Version & ACPI_TABLE_VERSION_GTE_2_0);
1292
1293 //
1294 // Remove from Rsdt and Xsdt. We don't care about the return value
1295 // because it is acceptable for the table to not exist in Rsdt/Xsdt.
1296 // We didn't add some tables so we don't remove them.
1297 //
1298 if (RemoveFromRsdt) {
1299 RemoveTableFromRsdt (
1300 Table,
1301 &AcpiTableInstance->NumberOfTableEntries3,
1302 AcpiTableInstance->Rsdt3,
1303 AcpiTableInstance->Xsdt
1304 );
1305 }
1306 }
1307 //
1308 // Free the table, clean up any dependent tables and our private data pointers.
1309 //
1310 switch (Table->Table->Signature) {
1311
1312 case EFI_ACPI_3_0_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE:
1313 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1314 AcpiTableInstance->Fadt1 = NULL;
1315 }
1316
1317 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
1318 AcpiTableInstance->Fadt3 = NULL;
1319 }
1320 break;
1321
1322 case EFI_ACPI_3_0_FIRMWARE_ACPI_CONTROL_STRUCTURE_SIGNATURE:
1323 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1324 AcpiTableInstance->Facs1 = NULL;
1325
1326 //
1327 // Update FADT table pointers
1328 //
1329 if (AcpiTableInstance->Fadt1 != NULL) {
1330 AcpiTableInstance->Fadt1->FirmwareCtrl = 0;
1331
1332 //
1333 // Checksum table
1334 //
1335 AcpiPlatformChecksum (
1336 AcpiTableInstance->Fadt1,
1337 AcpiTableInstance->Fadt1->Header.Length,
1338 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1339 Checksum)
1340 );
1341 }
1342 }
1343
1344 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
1345 AcpiTableInstance->Facs3 = NULL;
1346
1347 //
1348 // Update FADT table pointers
1349 //
1350 if (AcpiTableInstance->Fadt3 != NULL) {
1351 AcpiTableInstance->Fadt3->FirmwareCtrl = 0;
1352 ZeroMem (&AcpiTableInstance->Fadt3->XFirmwareCtrl, sizeof (UINT64));
1353
1354 //
1355 // Checksum table
1356 //
1357 AcpiPlatformChecksum (
1358 AcpiTableInstance->Fadt3,
1359 AcpiTableInstance->Fadt3->Header.Length,
1360 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1361 Checksum)
1362 );
1363 }
1364 }
1365 break;
1366
1367 case EFI_ACPI_3_0_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE:
1368 if ((Version & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1369 AcpiTableInstance->Dsdt1 = NULL;
1370
1371 //
1372 // Update FADT table pointers
1373 //
1374 if (AcpiTableInstance->Fadt1 != NULL) {
1375 AcpiTableInstance->Fadt1->Dsdt = 0;
1376
1377 //
1378 // Checksum table
1379 //
1380 AcpiPlatformChecksum (
1381 AcpiTableInstance->Fadt1,
1382 AcpiTableInstance->Fadt1->Header.Length,
1383 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1384 Checksum)
1385 );
1386 }
1387 }
1388
1389
1390 if ((Version & ACPI_TABLE_VERSION_GTE_2_0) != 0) {
1391 AcpiTableInstance->Dsdt3 = NULL;
1392
1393 //
1394 // Update FADT table pointers
1395 //
1396 if (AcpiTableInstance->Fadt3 != NULL) {
1397 AcpiTableInstance->Fadt3->Dsdt = 0;
1398 ZeroMem (&AcpiTableInstance->Fadt3->XDsdt, sizeof (UINT64));
1399
1400 //
1401 // Checksum table
1402 //
1403 AcpiPlatformChecksum (
1404 AcpiTableInstance->Fadt3,
1405 AcpiTableInstance->Fadt3->Header.Length,
1406 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1407 Checksum)
1408 );
1409 }
1410 }
1411 break;
1412
1413 default:
1414 //
1415 // Do nothing
1416 //
1417 break;
1418 }
1419 }
1420 //
1421 // If no version is using this table anymore, remove and free list entry.
1422 //
1423 if (Table->Version == 0) {
1424 //
1425 // Free the Table
1426 //
1427 gBS->FreePages (Table->PageAddress, Table->NumberOfPages);
1428 RemoveEntryList (&(Table->Link));
1429 gBS->FreePool (Table);
1430 }
1431 //
1432 // Done
1433 //
1434 return EFI_SUCCESS;
1435 }
1436
1437
1438 /**
1439 This function finds and removes the table specified by the handle.
1440
1441 @param AcpiTableInstance Instance of the protocol.
1442 @param Version Bitmask of which versions to remove.
1443 @param Handle Table to remove.
1444
1445 @return EFI_SUCCESS The function completed successfully.
1446 @return EFI_ABORTED An error occurred.
1447 @return EFI_NOT_FOUND Handle not found in table list.
1448
1449 **/
1450 EFI_STATUS
1451 RemoveTableFromList (
1452 IN EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance,
1453 IN EFI_ACPI_TABLE_VERSION Version,
1454 IN UINTN Handle
1455 )
1456 {
1457 EFI_ACPI_TABLE_LIST *Table;
1458 EFI_STATUS Status;
1459
1460 Table = (EFI_ACPI_TABLE_LIST*) NULL;
1461
1462 //
1463 // Check for invalid input parameters
1464 //
1465 ASSERT (AcpiTableInstance);
1466
1467 //
1468 // Find the table
1469 //
1470 Status = FindTableByHandle (
1471 Handle,
1472 &AcpiTableInstance->TableList,
1473 &Table
1474 );
1475 if (EFI_ERROR (Status)) {
1476 return EFI_NOT_FOUND;
1477 }
1478 //
1479 // Remove the table
1480 //
1481 Status = DeleteTable (AcpiTableInstance, Version, Table);
1482 if (EFI_ERROR (Status)) {
1483 return EFI_ABORTED;
1484 }
1485 //
1486 // Completed successfully
1487 //
1488 return EFI_SUCCESS;
1489 }
1490
1491
1492 /**
1493 This function calculates and updates an UINT8 checksum.
1494
1495 @param Buffer Pointer to buffer to checksum
1496 @param Size Number of bytes to checksum
1497 @param ChecksumOffset Offset to place the checksum result in
1498
1499 @return EFI_SUCCESS The function completed successfully.
1500
1501 **/
1502 EFI_STATUS
1503 AcpiPlatformChecksum (
1504 IN VOID *Buffer,
1505 IN UINTN Size,
1506 IN UINTN ChecksumOffset
1507 )
1508 {
1509 UINT8 Sum;
1510 UINT8 *Ptr;
1511
1512 Sum = 0;
1513 //
1514 // Initialize pointer
1515 //
1516 Ptr = Buffer;
1517
1518 //
1519 // set checksum to 0 first
1520 //
1521 Ptr[ChecksumOffset] = 0;
1522
1523 //
1524 // add all content of buffer
1525 //
1526 while ((Size--) != 0) {
1527 Sum = (UINT8) (Sum + (*Ptr++));
1528 }
1529 //
1530 // set checksum
1531 //
1532 Ptr = Buffer;
1533 Ptr[ChecksumOffset] = (UINT8) (0xff - Sum + 1);
1534
1535 return EFI_SUCCESS;
1536 }
1537
1538
1539 /**
1540 Checksum all versions of the common tables, RSDP, RSDT, XSDT.
1541
1542 @param AcpiTableInstance Protocol instance private data.
1543
1544 @return EFI_SUCCESS The function completed successfully.
1545
1546 **/
1547 EFI_STATUS
1548 ChecksumCommonTables (
1549 IN OUT EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
1550 )
1551 {
1552 //
1553 // RSDP ACPI 1.0 checksum for 1.0 table. This is only the first 20 bytes of the structure
1554 //
1555 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1556 AcpiPlatformChecksum (
1557 AcpiTableInstance->Rsdp1,
1558 sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
1559 OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
1560 Checksum)
1561 );
1562 }
1563
1564 //
1565 // RSDP ACPI 1.0 checksum for 2.0/3.0 table. This is only the first 20 bytes of the structure
1566 //
1567 AcpiPlatformChecksum (
1568 AcpiTableInstance->Rsdp3,
1569 sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
1570 OFFSET_OF (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
1571 Checksum)
1572 );
1573
1574 //
1575 // RSDP ACPI 2.0/3.0 checksum, this is the entire table
1576 //
1577 AcpiPlatformChecksum (
1578 AcpiTableInstance->Rsdp3,
1579 sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER),
1580 OFFSET_OF (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER,
1581 ExtendedChecksum)
1582 );
1583
1584 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1585 //
1586 // RSDT checksums
1587 //
1588 AcpiPlatformChecksum (
1589 AcpiTableInstance->Rsdt1,
1590 AcpiTableInstance->Rsdt1->Length,
1591 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1592 Checksum)
1593 );
1594
1595 AcpiPlatformChecksum (
1596 AcpiTableInstance->Rsdt3,
1597 AcpiTableInstance->Rsdt3->Length,
1598 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1599 Checksum)
1600 );
1601 }
1602
1603 //
1604 // XSDT checksum
1605 //
1606 AcpiPlatformChecksum (
1607 AcpiTableInstance->Xsdt,
1608 AcpiTableInstance->Xsdt->Length,
1609 OFFSET_OF (EFI_ACPI_DESCRIPTION_HEADER,
1610 Checksum)
1611 );
1612
1613 return EFI_SUCCESS;
1614 }
1615
1616
1617 /**
1618 Constructor for the ACPI table protocol. Initializes instance
1619 data.
1620
1621 @param AcpiTableInstance Instance to construct
1622
1623 @return EFI_SUCCESS Instance initialized.
1624 @return EFI_OUT_OF_RESOURCES Unable to allocate required resources.
1625
1626 **/
1627 EFI_STATUS
1628 AcpiTableAcpiTableConstructor (
1629 EFI_ACPI_TABLE_INSTANCE *AcpiTableInstance
1630 )
1631 {
1632 EFI_STATUS Status;
1633 UINT64 CurrentData;
1634 UINTN TotalSize;
1635 UINTN RsdpTableSize;
1636 UINT8 *Pointer;
1637 EFI_PHYSICAL_ADDRESS PageAddress;
1638
1639 //
1640 // Check for invalid input parameters
1641 //
1642 ASSERT (AcpiTableInstance);
1643
1644 //
1645 // If ACPI v1.0b is among the ACPI versions we aim to support, we have to
1646 // ensure that all memory allocations are below 4 GB.
1647 //
1648 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1649 mAcpiTableAllocType = AllocateMaxAddress;
1650 } else {
1651 mAcpiTableAllocType = AllocateAnyPages;
1652 }
1653
1654 InitializeListHead (&AcpiTableInstance->TableList);
1655 AcpiTableInstance->CurrentHandle = 1;
1656
1657 AcpiTableInstance->AcpiTableProtocol.InstallAcpiTable = InstallAcpiTable;
1658 AcpiTableInstance->AcpiTableProtocol.UninstallAcpiTable = UninstallAcpiTable;
1659
1660 if (FeaturePcdGet (PcdInstallAcpiSdtProtocol)) {
1661 SdtAcpiTableAcpiSdtConstructor (AcpiTableInstance);
1662 }
1663
1664 //
1665 // Create RSDP table
1666 //
1667 RsdpTableSize = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
1668 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1669 RsdpTableSize += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
1670 }
1671
1672 PageAddress = 0xFFFFFFFF;
1673 Status = gBS->AllocatePages (
1674 mAcpiTableAllocType,
1675 EfiACPIReclaimMemory,
1676 EFI_SIZE_TO_PAGES (RsdpTableSize),
1677 &PageAddress
1678 );
1679
1680 if (EFI_ERROR (Status)) {
1681 return EFI_OUT_OF_RESOURCES;
1682 }
1683
1684 Pointer = (UINT8 *) (UINTN) PageAddress;
1685 ZeroMem (Pointer, RsdpTableSize);
1686
1687 AcpiTableInstance->Rsdp1 = (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;
1688 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1689 Pointer += sizeof (EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
1690 }
1691 AcpiTableInstance->Rsdp3 = (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER *) Pointer;
1692
1693 //
1694 // Create RSDT, XSDT structures
1695 //
1696 TotalSize = sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 XSDT
1697 mEfiAcpiMaxNumTables * sizeof (UINT64);
1698
1699 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1700 TotalSize += sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 1.0 RSDT
1701 mEfiAcpiMaxNumTables * sizeof (UINT32) +
1702 sizeof (EFI_ACPI_DESCRIPTION_HEADER) + // for ACPI 2.0/3.0 RSDT
1703 mEfiAcpiMaxNumTables * sizeof (UINT32);
1704 }
1705
1706 //
1707 // Allocate memory in the lower 32 bit of address range for
1708 // compatibility with ACPI 1.0 OS.
1709 //
1710 // This is done because ACPI 1.0 pointers are 32 bit values.
1711 // ACPI 2.0 OS and all 64 bit OS must use the 64 bit ACPI table addresses.
1712 // There is no architectural reason these should be below 4GB, it is purely
1713 // for convenience of implementation that we force memory below 4GB.
1714 //
1715 PageAddress = 0xFFFFFFFF;
1716 Status = gBS->AllocatePages (
1717 mAcpiTableAllocType,
1718 EfiACPIReclaimMemory,
1719 EFI_SIZE_TO_PAGES (TotalSize),
1720 &PageAddress
1721 );
1722
1723 if (EFI_ERROR (Status)) {
1724 gBS->FreePages ((EFI_PHYSICAL_ADDRESS)(UINTN)AcpiTableInstance->Rsdp1, EFI_SIZE_TO_PAGES (RsdpTableSize));
1725 return EFI_OUT_OF_RESOURCES;
1726 }
1727
1728 Pointer = (UINT8 *) (UINTN) PageAddress;
1729 ZeroMem (Pointer, TotalSize);
1730
1731 AcpiTableInstance->Rsdt1 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
1732 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1733 Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
1734 AcpiTableInstance->Rsdt3 = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
1735 Pointer += (sizeof (EFI_ACPI_DESCRIPTION_HEADER) + EFI_ACPI_MAX_NUM_TABLES * sizeof (UINT32));
1736 }
1737 AcpiTableInstance->Xsdt = (EFI_ACPI_DESCRIPTION_HEADER *) Pointer;
1738
1739 //
1740 // Initialize RSDP
1741 //
1742 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1743 CurrentData = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
1744 CopyMem (&AcpiTableInstance->Rsdp1->Signature, &CurrentData, sizeof (UINT64));
1745 CopyMem (AcpiTableInstance->Rsdp1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp1->OemId));
1746 AcpiTableInstance->Rsdp1->Reserved = EFI_ACPI_RESERVED_BYTE;
1747 AcpiTableInstance->Rsdp1->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt1;
1748 }
1749
1750 CurrentData = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_SIGNATURE;
1751 CopyMem (&AcpiTableInstance->Rsdp3->Signature, &CurrentData, sizeof (UINT64));
1752 CopyMem (AcpiTableInstance->Rsdp3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdp3->OemId));
1753 AcpiTableInstance->Rsdp3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER_REVISION;
1754 AcpiTableInstance->Rsdp3->Length = sizeof (EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_POINTER);
1755 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1756 AcpiTableInstance->Rsdp3->RsdtAddress = (UINT32) (UINTN) AcpiTableInstance->Rsdt3;
1757 }
1758 CurrentData = (UINT64) (UINTN) AcpiTableInstance->Xsdt;
1759 CopyMem (&AcpiTableInstance->Rsdp3->XsdtAddress, &CurrentData, sizeof (UINT64));
1760 SetMem (AcpiTableInstance->Rsdp3->Reserved, 3, EFI_ACPI_RESERVED_BYTE);
1761
1762 if ((PcdGet32 (PcdAcpiExposedTableVersions) & EFI_ACPI_TABLE_VERSION_1_0B) != 0) {
1763 //
1764 // Initialize Rsdt
1765 //
1766 // Note that we "reserve" one entry for the FADT so it can always be
1767 // at the beginning of the list of tables. Some OS don't seem
1768 // to find it correctly if it is too far down the list.
1769 //
1770 AcpiTableInstance->Rsdt1->Signature = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
1771 AcpiTableInstance->Rsdt1->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
1772 AcpiTableInstance->Rsdt1->Revision = EFI_ACPI_1_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
1773 CopyMem (AcpiTableInstance->Rsdt1->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt1->OemId));
1774 CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
1775 CopyMem (&AcpiTableInstance->Rsdt1->OemTableId, &CurrentData, sizeof (UINT64));
1776 AcpiTableInstance->Rsdt1->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
1777 AcpiTableInstance->Rsdt1->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
1778 AcpiTableInstance->Rsdt1->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
1779 //
1780 // We always reserve first one for FADT
1781 //
1782 AcpiTableInstance->NumberOfTableEntries1 = 1;
1783 AcpiTableInstance->Rsdt1->Length = AcpiTableInstance->Rsdt1->Length + sizeof(UINT32);
1784
1785 AcpiTableInstance->Rsdt3->Signature = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
1786 AcpiTableInstance->Rsdt3->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
1787 AcpiTableInstance->Rsdt3->Revision = EFI_ACPI_3_0_ROOT_SYSTEM_DESCRIPTION_TABLE_REVISION;
1788 CopyMem (AcpiTableInstance->Rsdt3->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Rsdt3->OemId));
1789 CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
1790 CopyMem (&AcpiTableInstance->Rsdt3->OemTableId, &CurrentData, sizeof (UINT64));
1791 AcpiTableInstance->Rsdt3->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
1792 AcpiTableInstance->Rsdt3->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
1793 AcpiTableInstance->Rsdt3->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
1794 //
1795 // We always reserve first one for FADT
1796 //
1797 AcpiTableInstance->Rsdt3->Length = AcpiTableInstance->Rsdt3->Length + sizeof(UINT32);
1798 }
1799 AcpiTableInstance->NumberOfTableEntries3 = 1;
1800
1801 //
1802 // Initialize Xsdt
1803 //
1804 AcpiTableInstance->Xsdt->Signature = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE;
1805 AcpiTableInstance->Xsdt->Length = sizeof (EFI_ACPI_DESCRIPTION_HEADER);
1806 AcpiTableInstance->Xsdt->Revision = EFI_ACPI_3_0_EXTENDED_SYSTEM_DESCRIPTION_TABLE_REVISION;
1807 CopyMem (AcpiTableInstance->Xsdt->OemId, PcdGetPtr (PcdAcpiDefaultOemId), sizeof (AcpiTableInstance->Xsdt->OemId));
1808 CurrentData = PcdGet64 (PcdAcpiDefaultOemTableId);
1809 CopyMem (&AcpiTableInstance->Xsdt->OemTableId, &CurrentData, sizeof (UINT64));
1810 AcpiTableInstance->Xsdt->OemRevision = PcdGet32 (PcdAcpiDefaultOemRevision);
1811 AcpiTableInstance->Xsdt->CreatorId = PcdGet32 (PcdAcpiDefaultCreatorId);
1812 AcpiTableInstance->Xsdt->CreatorRevision = PcdGet32 (PcdAcpiDefaultCreatorRevision);
1813 //
1814 // We always reserve first one for FADT
1815 //
1816 AcpiTableInstance->Xsdt->Length = AcpiTableInstance->Xsdt->Length + sizeof(UINT64);
1817
1818 ChecksumCommonTables (AcpiTableInstance);
1819
1820 //
1821 // Completed successfully
1822 //
1823 return EFI_SUCCESS;
1824 }
1825
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