1 /******************************************************************************
3 * Module Name: tbconvrt - ACPI Table conversion utilities
6 *****************************************************************************/
8 /******************************************************************************
12 * Some or all of this work - Copyright (c) 1999 - 2003, Intel Corp.
13 * All rights reserved.
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
38 * The above copyright and patent license is granted only if the following
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
73 * 3.4. Intel retains all right, title, and interest in and to the Original
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
81 * 4. Disclaimer and Export Compliance
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
115 *****************************************************************************/
117 #define __TBCONVRT_C__
120 #include "actables.h"
123 #define _COMPONENT ACPI_TABLES
124 ACPI_MODULE_NAME ("tbconvrt")
127 /*******************************************************************************
129 * FUNCTION: AcpiTbGetTableCount
131 * PARAMETERS: RSDP - Pointer to the RSDP
132 * RSDT - Pointer to the RSDT/XSDT
134 * RETURN: The number of tables pointed to by the RSDT or XSDT.
136 * DESCRIPTION: Calculate the number of tables. Automatically handles either
139 ******************************************************************************/
142 AcpiTbGetTableCount (
143 RSDP_DESCRIPTOR *RSDP,
144 ACPI_TABLE_HEADER *RSDT)
149 ACPI_FUNCTION_ENTRY ();
152 if (RSDP->Revision < 2)
154 PointerSize = sizeof (UINT32);
158 PointerSize = sizeof (UINT64);
162 * Determine the number of tables pointed to by the RSDT/XSDT.
163 * This is defined by the ACPI Specification to be the number of
164 * pointers contained within the RSDT/XSDT. The size of the pointers
165 * is architecture-dependent.
167 return ((RSDT->Length - sizeof (ACPI_TABLE_HEADER)) / PointerSize);
171 /*******************************************************************************
173 * FUNCTION: AcpiTbConvertToXsdt
175 * PARAMETERS: TableInfo - Info about the RSDT
179 * DESCRIPTION: Convert an RSDT to an XSDT (internal common format)
181 ******************************************************************************/
184 AcpiTbConvertToXsdt (
185 ACPI_TABLE_DESC *TableInfo)
189 XSDT_DESCRIPTOR *NewTable;
192 ACPI_FUNCTION_ENTRY ();
195 /* Compute size of the converted XSDT */
197 TableSize = ((ACPI_SIZE) AcpiGbl_RsdtTableCount * sizeof (UINT64)) +
198 sizeof (ACPI_TABLE_HEADER);
200 /* Allocate an XSDT */
202 NewTable = ACPI_MEM_CALLOCATE (TableSize);
205 return (AE_NO_MEMORY);
208 /* Copy the header and set the length */
210 ACPI_MEMCPY (NewTable, TableInfo->Pointer, sizeof (ACPI_TABLE_HEADER));
211 NewTable->Length = (UINT32) TableSize;
213 /* Copy the table pointers */
215 for (i = 0; i < AcpiGbl_RsdtTableCount; i++)
217 if (AcpiGbl_RSDP->Revision < 2)
219 ACPI_STORE_ADDRESS (NewTable->TableOffsetEntry[i],
220 ((RSDT_DESCRIPTOR_REV1 *) TableInfo->Pointer)->TableOffsetEntry[i]);
224 NewTable->TableOffsetEntry[i] =
225 ((XSDT_DESCRIPTOR *) TableInfo->Pointer)->TableOffsetEntry[i];
229 /* Delete the original table (either mapped or in a buffer) */
231 AcpiTbDeleteSingleTable (TableInfo);
233 /* Point the table descriptor to the new table */
235 TableInfo->Pointer = (ACPI_TABLE_HEADER *) NewTable;
236 TableInfo->Length = TableSize;
237 TableInfo->Allocation = ACPI_MEM_ALLOCATED;
243 /******************************************************************************
245 * FUNCTION: AcpiTbInitGenericAddress
247 * PARAMETERS: NewGasStruct - GAS struct to be initialized
248 * RegisterBitWidth - Width of this register
249 * Address - Address of the register
253 * DESCRIPTION: Initialize a GAS structure.
255 ******************************************************************************/
258 AcpiTbInitGenericAddress (
259 ACPI_GENERIC_ADDRESS *NewGasStruct,
260 UINT8 RegisterBitWidth,
261 ACPI_PHYSICAL_ADDRESS Address)
264 ACPI_STORE_ADDRESS (NewGasStruct->Address, Address);
266 NewGasStruct->AddressSpaceId = ACPI_ADR_SPACE_SYSTEM_IO;
267 NewGasStruct->RegisterBitWidth = RegisterBitWidth;
268 NewGasStruct->RegisterBitOffset = 0;
269 NewGasStruct->Reserved = 0;
273 /*******************************************************************************
275 * FUNCTION: AcpiTbConvertFadt1
277 * PARAMETERS: LocalFadt - Pointer to new FADT
278 * OriginalFadt - Pointer to old FADT
280 * RETURN: Populates LocalFadt
282 * DESCRIPTION: Convert an ACPI 1.0 FADT to common internal format
284 ******************************************************************************/
288 FADT_DESCRIPTOR_REV2 *LocalFadt,
289 FADT_DESCRIPTOR_REV1 *OriginalFadt)
294 /* The BIOS stored FADT should agree with Revision 1.0 */
297 * Copy the table header and the common part of the tables.
299 * The 2.0 table is an extension of the 1.0 table, so the entire 1.0
300 * table can be copied first, then expand some fields to 64 bits.
302 ACPI_MEMCPY (LocalFadt, OriginalFadt, sizeof (FADT_DESCRIPTOR_REV1));
304 /* Convert table pointers to 64-bit fields */
306 ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl, LocalFadt->V1_FirmwareCtrl);
307 ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
310 * System Interrupt Model isn't used in ACPI 2.0 (LocalFadt->Reserved1 = 0;)
314 * This field is set by the OEM to convey the preferred power management
315 * profile to OSPM. It doesn't have any 1.0 equivalence. Since we don't
316 * know what kind of 32-bit system this is, we will use "unspecified".
318 LocalFadt->Prefer_PM_Profile = PM_UNSPECIFIED;
321 * Processor Performance State Control. This is the value OSPM writes to
322 * the SMI_CMD register to assume processor performance state control
323 * responsibility. There isn't any equivalence in 1.0, leave it zeroed.
325 LocalFadt->PstateCnt = 0;
328 * Support for the _CST object and C States change notification.
329 * This data item hasn't any 1.0 equivalence so leave it zero.
331 LocalFadt->CstCnt = 0;
334 * Since there isn't any equivalence in 1.0 and since it highly likely
335 * that a 1.0 system has legacy support.
337 LocalFadt->IapcBootArch = BAF_LEGACY_DEVICES;
340 * Convert the V1.0 block addresses to V2.0 GAS structures
342 AcpiTbInitGenericAddress (&LocalFadt->XPm1aEvtBlk, LocalFadt->Pm1EvtLen,
343 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aEvtBlk);
344 AcpiTbInitGenericAddress (&LocalFadt->XPm1bEvtBlk, LocalFadt->Pm1EvtLen,
345 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bEvtBlk);
346 AcpiTbInitGenericAddress (&LocalFadt->XPm1aCntBlk, LocalFadt->Pm1CntLen,
347 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aCntBlk);
348 AcpiTbInitGenericAddress (&LocalFadt->XPm1bCntBlk, LocalFadt->Pm1CntLen,
349 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bCntBlk);
350 AcpiTbInitGenericAddress (&LocalFadt->XPm2CntBlk, LocalFadt->Pm2CntLen,
351 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm2CntBlk);
352 AcpiTbInitGenericAddress (&LocalFadt->XPmTmrBlk, LocalFadt->PmTmLen,
353 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_PmTmrBlk);
354 AcpiTbInitGenericAddress (&LocalFadt->XGpe0Blk, 0,
355 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe0Blk);
356 AcpiTbInitGenericAddress (&LocalFadt->XGpe1Blk, 0,
357 (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe1Blk);
359 /* Create separate GAS structs for the PM1 Enable registers */
361 AcpiTbInitGenericAddress (&AcpiGbl_XPm1aEnable,
362 (UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
363 (ACPI_PHYSICAL_ADDRESS) (ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address) +
364 ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
366 /* PM1B is optional; leave null if not present */
368 if (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address))
370 AcpiTbInitGenericAddress (&AcpiGbl_XPm1bEnable,
371 (UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
372 (ACPI_PHYSICAL_ADDRESS) (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address) +
373 ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
378 /*******************************************************************************
380 * FUNCTION: AcpiTbConvertFadt2
382 * PARAMETERS: LocalFadt - Pointer to new FADT
383 * OriginalFadt - Pointer to old FADT
385 * RETURN: Populates LocalFadt
387 * DESCRIPTION: Convert an ACPI 2.0 FADT to common internal format.
388 * Handles optional "X" fields.
390 ******************************************************************************/
394 FADT_DESCRIPTOR_REV2 *LocalFadt,
395 FADT_DESCRIPTOR_REV2 *OriginalFadt)
398 /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
400 ACPI_MEMCPY (LocalFadt, OriginalFadt, sizeof (FADT_DESCRIPTOR_REV2));
403 * "X" fields are optional extensions to the original V1.0 fields, so
404 * we must selectively expand V1.0 fields if the corresponding X field
407 if (!(ACPI_GET_ADDRESS (LocalFadt->XFirmwareCtrl)))
409 ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl, LocalFadt->V1_FirmwareCtrl);
412 if (!(ACPI_GET_ADDRESS (LocalFadt->XDsdt)))
414 ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
417 if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address)))
419 AcpiTbInitGenericAddress (&LocalFadt->XPm1aEvtBlk,
420 LocalFadt->Pm1EvtLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aEvtBlk);
423 if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address)))
425 AcpiTbInitGenericAddress (&LocalFadt->XPm1bEvtBlk,
426 LocalFadt->Pm1EvtLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bEvtBlk);
429 if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aCntBlk.Address)))
431 AcpiTbInitGenericAddress (&LocalFadt->XPm1aCntBlk,
432 LocalFadt->Pm1CntLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aCntBlk);
435 if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bCntBlk.Address)))
437 AcpiTbInitGenericAddress (&LocalFadt->XPm1bCntBlk,
438 LocalFadt->Pm1CntLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bCntBlk);
441 if (!(ACPI_GET_ADDRESS (LocalFadt->XPm2CntBlk.Address)))
443 AcpiTbInitGenericAddress (&LocalFadt->XPm2CntBlk,
444 LocalFadt->Pm2CntLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm2CntBlk);
447 if (!(ACPI_GET_ADDRESS (LocalFadt->XPmTmrBlk.Address)))
449 AcpiTbInitGenericAddress (&LocalFadt->XPmTmrBlk,
450 LocalFadt->PmTmLen, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_PmTmrBlk);
453 if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe0Blk.Address)))
455 AcpiTbInitGenericAddress (&LocalFadt->XGpe0Blk,
456 0, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe0Blk);
459 if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe1Blk.Address)))
461 AcpiTbInitGenericAddress (&LocalFadt->XGpe1Blk,
462 0, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe1Blk);
465 /* Create separate GAS structs for the PM1 Enable registers */
467 AcpiTbInitGenericAddress (&AcpiGbl_XPm1aEnable,
468 (UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
469 (ACPI_PHYSICAL_ADDRESS) (ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address) +
470 ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
471 AcpiGbl_XPm1aEnable.AddressSpaceId = LocalFadt->XPm1aEvtBlk.AddressSpaceId;
473 /* PM1B is optional; leave null if not present */
475 if (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address))
477 AcpiTbInitGenericAddress (&AcpiGbl_XPm1bEnable,
478 (UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
479 (ACPI_PHYSICAL_ADDRESS) (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address) +
480 ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
481 AcpiGbl_XPm1bEnable.AddressSpaceId = LocalFadt->XPm1bEvtBlk.AddressSpaceId;
486 /*******************************************************************************
488 * FUNCTION: AcpiTbConvertTableFadt
494 * DESCRIPTION: Converts a BIOS supplied ACPI 1.0 FADT to a local
495 * ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply
496 * copied to the local FADT. The ACPI CA software uses this
497 * local FADT. Thus a significant amount of special #ifdef
498 * type codeing is saved.
500 ******************************************************************************/
503 AcpiTbConvertTableFadt (void)
505 FADT_DESCRIPTOR_REV2 *LocalFadt;
506 ACPI_TABLE_DESC *TableDesc;
509 ACPI_FUNCTION_TRACE ("TbConvertTableFadt");
513 * AcpiGbl_FADT is valid
514 * Allocate and zero the 2.0 FADT buffer
516 LocalFadt = ACPI_MEM_CALLOCATE (sizeof (FADT_DESCRIPTOR_REV2));
517 if (LocalFadt == NULL)
519 return_ACPI_STATUS (AE_NO_MEMORY);
523 * FADT length and version validation. The table must be at least as
524 * long as the version 1.0 FADT
526 if (AcpiGbl_FADT->Length < sizeof (FADT_DESCRIPTOR_REV1))
528 ACPI_REPORT_ERROR (("Invalid FADT table length: 0x%X\n", AcpiGbl_FADT->Length));
529 return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
532 if (AcpiGbl_FADT->Revision >= FADT2_REVISION_ID)
534 if (AcpiGbl_FADT->Length < sizeof (FADT_DESCRIPTOR_REV2))
536 /* Length is too short to be a V2.0 table */
538 ACPI_REPORT_WARNING (("Inconsistent FADT length (0x%X) and revision (0x%X), using FADT V1.0 portion of table\n",
539 AcpiGbl_FADT->Length, AcpiGbl_FADT->Revision));
541 AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
545 /* Valid V2.0 table */
547 AcpiTbConvertFadt2 (LocalFadt, AcpiGbl_FADT);
552 /* Valid V1.0 table */
554 AcpiTbConvertFadt1 (LocalFadt, (void *) AcpiGbl_FADT);
558 * Global FADT pointer will point to the new common V2.0 FADT
560 AcpiGbl_FADT = LocalFadt;
561 AcpiGbl_FADT->Length = sizeof (FADT_DESCRIPTOR);
563 /* Free the original table */
565 TableDesc = AcpiGbl_TableLists[ACPI_TABLE_FADT].Next;
566 AcpiTbDeleteSingleTable (TableDesc);
568 /* Install the new table */
570 TableDesc->Pointer = (ACPI_TABLE_HEADER *) AcpiGbl_FADT;
571 TableDesc->Allocation = ACPI_MEM_ALLOCATED;
572 TableDesc->Length = sizeof (FADT_DESCRIPTOR_REV2);
574 /* Dump the entire FADT */
576 ACPI_DEBUG_PRINT ((ACPI_DB_TABLES,
577 "Hex dump of common internal FADT, size %d (%X)\n",
578 AcpiGbl_FADT->Length, AcpiGbl_FADT->Length));
579 ACPI_DUMP_BUFFER ((UINT8 *) (AcpiGbl_FADT), AcpiGbl_FADT->Length);
581 return_ACPI_STATUS (AE_OK);
585 /*******************************************************************************
587 * FUNCTION: AcpiTbConvertTableFacs
589 * PARAMETERS: TableInfo - Info for currently installad FACS
593 * DESCRIPTION: Convert ACPI 1.0 and ACPI 2.0 FACS to a common internal
596 ******************************************************************************/
599 AcpiTbBuildCommonFacs (
600 ACPI_TABLE_DESC *TableInfo)
603 ACPI_FUNCTION_TRACE ("TbBuildCommonFacs");
606 /* Absolute minimum length is 24, but the ACPI spec says 64 */
608 if (AcpiGbl_FACS->Length < 24)
610 ACPI_REPORT_ERROR (("Invalid FACS table length: 0x%X\n", AcpiGbl_FACS->Length));
611 return_ACPI_STATUS (AE_INVALID_TABLE_LENGTH);
614 if (AcpiGbl_FACS->Length < 64)
616 ACPI_REPORT_WARNING (("FACS is shorter than the ACPI specification allows: 0x%X, using anyway\n",
617 AcpiGbl_FACS->Length));
620 /* Copy fields to the new FACS */
622 AcpiGbl_CommonFACS.GlobalLock = &(AcpiGbl_FACS->GlobalLock);
624 if ((AcpiGbl_RSDP->Revision < 2) ||
625 (AcpiGbl_FACS->Length < 32) ||
626 (!(ACPI_GET_ADDRESS (AcpiGbl_FACS->XFirmwareWakingVector))))
628 /* ACPI 1.0 FACS or short table or optional X_ field is zero */
630 AcpiGbl_CommonFACS.FirmwareWakingVector = ACPI_CAST_PTR (UINT64, &(AcpiGbl_FACS->FirmwareWakingVector));
631 AcpiGbl_CommonFACS.VectorWidth = 32;
635 /* ACPI 2.0 FACS with valid X_ field */
637 AcpiGbl_CommonFACS.FirmwareWakingVector = &AcpiGbl_FACS->XFirmwareWakingVector;
638 AcpiGbl_CommonFACS.VectorWidth = 64;
641 return_ACPI_STATUS (AE_OK);