]> git.proxmox.com Git - mirror_edk2.git/blame - DynamicTablesPkg/Library/Acpi/Arm/AcpiFadtLibArm/FadtGenerator.c
projects / mirror_edk2.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
DynamicTablesPkg: Replace BSD License with BSD+Patent License
[mirror_edk2.git] / DynamicTablesPkg / Library / Acpi / Arm / AcpiFadtLibArm / FadtGenerator.c
CommitLineData
cd204e01
SM		 1/** @file\r
2 FADT Table Generator\r
3\r
4 Copyright (c) 2017 - 2019, ARM Limited. All rights reserved.\r
9cd9bdc6 5 SPDX-License-Identifier: BSD-2-Clause-Patent\r
cd204e01
SM		 6\r
7 @par Reference(s):\r
8 - ACPI 6.2 Specification - Errata A, September 2017\r
9\r
10**/\r
11\r
12#include <Library/AcpiLib.h>\r
13#include <Library/DebugLib.h>\r
14#include <Protocol/AcpiTable.h>\r
15\r
16// Module specific include files.\r
17#include <AcpiTableGenerator.h>\r
18#include <ConfigurationManagerObject.h>\r
19#include <ConfigurationManagerHelper.h>\r
20#include <Library/TableHelperLib.h>\r
21#include <Protocol/ConfigurationManagerProtocol.h>\r
22\r
23/** ARM standard FADT Generator\r
24\r
25Requirements:\r
26 The following Configuration Manager Object(s) are required by\r
27 this Generator:\r
28 - EArmObjPowerManagementProfileInfo\r
29 - EArmObjBootArchInfo\r
30 - EArmObjHypervisorVendorIdentity (OPTIONAL)\r
31*/\r
32\r
33/** This macro defines the FADT flag options for ARM Platforms.\r
34*/\r
35#define FADT_FLAGS (EFI_ACPI_6_2_HW_REDUCED_ACPI | \\r
36 EFI_ACPI_6_2_LOW_POWER_S0_IDLE_CAPABLE)\r
37\r
38/** This macro defines the valid mask for the FADT flag option\r
39 if HW_REDUCED_ACPI flag in the table is set.\r
40\r
41 Invalid bits are: 1, 2, 3,7, 8, 13, 14,16, 17 and\r
42 22-31 (reserved).\r
43\r
44 Valid bits are:\r
45 EFI_ACPI_6_2_WBINVD BIT0\r
46 EFI_ACPI_6_2_PWR_BUTTON BIT4\r
47 EFI_ACPI_6_2_SLP_BUTTON BIT5\r
48 EFI_ACPI_6_2_FIX_RTC BIT6\r
49 EFI_ACPI_6_2_DCK_CAP BIT9\r
50 EFI_ACPI_6_2_RESET_REG_SUP BIT10\r
51 EFI_ACPI_6_2_SEALED_CASE BIT11\r
52 EFI_ACPI_6_2_HEADLESS BIT12\r
53 EFI_ACPI_6_2_USE_PLATFORM_CLOCK BIT15\r
54 EFI_ACPI_6_2_FORCE_APIC_CLUSTER_MODEL BIT18\r
55 EFI_ACPI_6_2_FORCE_APIC_PHYSICAL_DESTINATION_MODE BIT19\r
56 EFI_ACPI_6_2_HW_REDUCED_ACPI BIT20\r
57 EFI_ACPI_6_2_LOW_POWER_S0_IDLE_CAPABLE BIT21\r
58*/\r
59#define VALID_HARDWARE_REDUCED_FLAG_MASK ( \\r
60 EFI_ACPI_6_2_WBINVD | \\r
61 EFI_ACPI_6_2_PWR_BUTTON | \\r
62 EFI_ACPI_6_2_SLP_BUTTON | \\r
63 EFI_ACPI_6_2_FIX_RTC | \\r
64 EFI_ACPI_6_2_DCK_CAP | \\r
65 EFI_ACPI_6_2_RESET_REG_SUP | \\r
66 EFI_ACPI_6_2_SEALED_CASE | \\r
67 EFI_ACPI_6_2_HEADLESS | \\r
68 EFI_ACPI_6_2_USE_PLATFORM_CLOCK | \\r
69 EFI_ACPI_6_2_FORCE_APIC_CLUSTER_MODEL | \\r
70 EFI_ACPI_6_2_FORCE_APIC_PHYSICAL_DESTINATION_MODE | \\r
71 EFI_ACPI_6_2_HW_REDUCED_ACPI | \\r
72 EFI_ACPI_6_2_LOW_POWER_S0_IDLE_CAPABLE)\r
73\r
74#pragma pack(1)\r
75\r
76/** The AcpiFadt is a template EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE\r
77 structure used for generating the FADT Table.\r
78 Note: fields marked with "{Template}" will be updated dynamically.\r
79*/\r
80STATIC\r
81EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE AcpiFadt = {\r
82 ACPI_HEADER (\r
83 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,\r
84 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE,\r
85 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_REVISION\r
86 ),\r
87 // UINT32 FirmwareCtrl\r
88 0,\r
89 // UINT32 Dsdt\r
90 0,\r
91 // UINT8 Reserved0\r
92 EFI_ACPI_RESERVED_BYTE,\r
93 // UINT8 PreferredPmProfile\r
94 EFI_ACPI_6_2_PM_PROFILE_UNSPECIFIED, // {Template}: Power Management Profile\r
95 // UINT16 SciInt\r
96 0,\r
97 // UINT32 SmiCmd\r
98 0,\r
99 // UINT8 AcpiEnable\r
100 0,\r
101 // UINT8 AcpiDisable\r
102 0,\r
103 // UINT8 S4BiosReq\r
104 0,\r
105 // UINT8 PstateCnt\r
106 0,\r
107 // UINT32 Pm1aEvtBlk\r
108 0,\r
109 // UINT32 Pm1bEvtBlk\r
110 0,\r
111 // UINT32 Pm1aCntBlk\r
112 0,\r
113 // UINT32 Pm1bCntBlk\r
114 0,\r
115 // UINT32 Pm2CntBlk\r
116 0,\r
117 // UINT32 PmTmrBlk\r
118 0,\r
119 // UINT32 Gpe0Blk\r
120 0,\r
121 // UINT32 Gpe1Blk\r
122 0,\r
123 // UINT8 Pm1EvtLen\r
124 0,\r
125 // UINT8 Pm1CntLen\r
126 0,\r
127 // UINT8 Pm2CntLen\r
128 0,\r
129 // UINT8 PmTmrLen\r
130 0,\r
131 // UINT8 Gpe0BlkLen\r
132 0,\r
133 // UINT8 Gpe1BlkLen\r
134 0,\r
135 // UINT8 Gpe1Base\r
136 0,\r
137 // UINT8 CstCnt\r
138 0,\r
139 // UINT16 PLvl2Lat\r
140 0,\r
141 // UINT16 PLvl3Lat\r
142 0,\r
143 // UINT16 FlushSize\r
144 0,\r
145 // UINT16 FlushStride\r
146 0,\r
147 // UINT8 DutyOffset\r
148 0,\r
149 // UINT8 DutyWidth\r
150 0,\r
151 // UINT8 DayAlrm\r
152 0,\r
153 // UINT8 MonAlrm\r
154 0,\r
155 // UINT8 Century\r
156 0,\r
157 // UINT16 IaPcBootArch\r
158 0,\r
159 // UINT8 Reserved1\r
160 0,\r
161 // UINT32 Flags\r
162 FADT_FLAGS,\r
163 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE ResetReg\r
164 NULL_GAS,\r
165 // UINT8 ResetValue\r
166 0,\r
167 // UINT16 ArmBootArch\r
168 EFI_ACPI_6_2_ARM_PSCI_COMPLIANT, // {Template}: ARM Boot Architecture Flags\r
169 // UINT8 MinorRevision\r
170 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_MINOR_REVISION,\r
171 // UINT64 XFirmwareCtrl\r
172 0,\r
173 // UINT64 XDsdt\r
174 0,\r
175 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPm1aEvtBlk\r
176 NULL_GAS,\r
177 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPm1bEvtBlk\r
178 NULL_GAS,\r
179 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPm1aCntBlk\r
180 NULL_GAS,\r
181 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPm1bCntBlk\r
182 NULL_GAS,\r
183 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPm2CntBlk\r
184 NULL_GAS,\r
185 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XPmTmrBlk\r
186 NULL_GAS,\r
187 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XGpe0Blk\r
188 NULL_GAS,\r
189 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE XGpe1Blk\r
190 NULL_GAS,\r
191 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE SleepControlReg\r
192 NULL_GAS,\r
193 // EFI_ACPI_6_2_GENERIC_ADDRESS_STRUCTURE SleepStatusReg\r
194 NULL_GAS,\r
195 // UINT64 HypervisorVendorIdentity\r
196 EFI_ACPI_RESERVED_QWORD // {Template}: Hypervisor Vendor ID\r
197};\r
198\r
199#pragma pack()\r
200\r
201/** This macro expands to a function that retrieves the Power\r
202 Management Profile Information from the Configuration Manager.\r
203*/\r
204GET_OBJECT_LIST (\r
205 EObjNameSpaceArm,\r
206 EArmObjPowerManagementProfileInfo,\r
207 CM_ARM_POWER_MANAGEMENT_PROFILE_INFO\r
208 );\r
209\r
210/** This macro expands to a function that retrieves the Boot\r
211 Architecture Information from the Configuration Manager.\r
212*/\r
213GET_OBJECT_LIST (\r
214 EObjNameSpaceArm,\r
215 EArmObjBootArchInfo,\r
216 CM_ARM_BOOT_ARCH_INFO\r
217 );\r
218\r
219/** This macro expands to a function that retrieves the Hypervisor\r
220 Vendor ID from the Configuration Manager.\r
221*/\r
222GET_OBJECT_LIST (\r
223 EObjNameSpaceArm,\r
224 EArmObjHypervisorVendorIdentity,\r
225 CM_ARM_HYPERVISOR_VENDOR_ID\r
226 );\r
227\r
228/** This macro expands to a function that retrieves the Fixed\r
229 feature flags for the platform from the Configuration Manager.\r
230*/\r
231GET_OBJECT_LIST (\r
232 EObjNameSpaceArm,\r
233 EArmObjFixedFeatureFlags,\r
234 CM_ARM_FIXED_FEATURE_FLAGS\r
235 );\r
236\r
237/** Update the Power Management Profile information in the FADT Table.\r
238\r
239 @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r
240 Protocol Interface.\r
241\r
242 @retval EFI_SUCCESS Success.\r
243 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
244 @retval EFI_NOT_FOUND The required object was not found.\r
245 @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r
246 Manager is less than the Object size for the\r
247 requested object.\r
248**/\r
249STATIC\r
250EFI_STATUS\r
251EFIAPI\r
252FadtAddPmProfileInfo (\r
253 IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol\r
254)\r
255{\r
256 EFI_STATUS Status;\r
257 CM_ARM_POWER_MANAGEMENT_PROFILE_INFO * PmProfile;\r
258\r
259 ASSERT (CfgMgrProtocol != NULL);\r
260\r
261 // Get the Power Management Profile from the Platform Configuration Manager\r
262 Status = GetEArmObjPowerManagementProfileInfo (\r
263 CfgMgrProtocol,\r
264 CM_NULL_TOKEN,\r
265 &PmProfile,\r
266 NULL\r
267 );\r
268 if (EFI_ERROR (Status)) {\r
269 DEBUG ((\r
270 DEBUG_ERROR,\r
271 "ERROR: FADT: Failed to get Power Management Profile information." \\r
272 " Status = %r\n",\r
273 Status\r
274 ));\r
275 goto error_handler;\r
276 }\r
277\r
278 DEBUG ((\r
279 DEBUG_INFO,\r
280 "FADT: PreferredPmProfile = 0x%x\n",\r
281 PmProfile->PowerManagementProfile\r
282 ));\r
283\r
284 AcpiFadt.PreferredPmProfile = PmProfile->PowerManagementProfile;\r
285\r
286error_handler:\r
287 return Status;\r
288}\r
289\r
290/** Updates the Boot Architecture information in the FADT Table.\r
291\r
292 @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r
293 Protocol Interface.\r
294\r
295 @retval EFI_SUCCESS Success.\r
296 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
297 @retval EFI_NOT_FOUND The required object was not found.\r
298 @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r
299 Manager is less than the Object size for the\r
300 requested object.\r
301**/\r
302STATIC\r
303EFI_STATUS\r
304EFIAPI\r
305FadtAddBootArchInfo (\r
306 IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol\r
307)\r
308{\r
309 EFI_STATUS Status;\r
310 CM_ARM_BOOT_ARCH_INFO * BootArchInfo;\r
311\r
312 ASSERT (CfgMgrProtocol != NULL);\r
313\r
314 // Get the Boot Architecture flags from the Platform Configuration Manager\r
315 Status = GetEArmObjBootArchInfo (\r
316 CfgMgrProtocol,\r
317 CM_NULL_TOKEN,\r
318 &BootArchInfo,\r
319 NULL\r
320 );\r
321 if (EFI_ERROR (Status)) {\r
322 DEBUG ((\r
323 DEBUG_ERROR,\r
324 "ERROR: FADT: Failed to get Boot Architecture flags. Status = %r\n",\r
325 Status\r
326 ));\r
327 goto error_handler;\r
328 }\r
329\r
330 DEBUG ((\r
331 DEBUG_INFO,\r
332 "FADT BootArchFlag = 0x%x\n",\r
333 BootArchInfo->BootArchFlags\r
334 ));\r
335\r
336 AcpiFadt.ArmBootArch = BootArchInfo->BootArchFlags;\r
337\r
338error_handler:\r
339 return Status;\r
340}\r
341\r
342/** Update the Hypervisor Vendor ID in the FADT Table.\r
343\r
344 @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r
345 Protocol Interface.\r
346\r
347 @retval EFI_SUCCESS Success.\r
348 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
349 @retval EFI_NOT_FOUND The required object was not found.\r
350 @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r
351 Manager is less than the Object size for the\r
352 requested object.\r
353**/\r
354STATIC\r
355EFI_STATUS\r
356EFIAPI\r
357FadtAddHypervisorVendorId (\r
358 IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol\r
359)\r
360{\r
361 EFI_STATUS Status;\r
362 CM_ARM_HYPERVISOR_VENDOR_ID * HypervisorVendorInfo;\r
363\r
364 ASSERT (CfgMgrProtocol != NULL);\r
365\r
366 // Get the Hypervisor Vendor ID from the Platform Configuration Manager\r
367 Status = GetEArmObjHypervisorVendorIdentity (\r
368 CfgMgrProtocol,\r
369 CM_NULL_TOKEN,\r
370 &HypervisorVendorInfo,\r
371 NULL\r
372 );\r
373 if (EFI_ERROR (Status)) {\r
374 if (Status == EFI_NOT_FOUND) {\r
375 DEBUG ((\r
376 DEBUG_INFO,\r
377 "INFO: FADT: Platform does not have a Hypervisor Vendor ID."\r
378 "Status = %r\n",\r
379 Status\r
380 ));\r
381 } else {\r
382 DEBUG ((\r
383 DEBUG_ERROR,\r
384 "ERROR: FADT: Failed to get Hypervisor Vendor ID. Status = %r\n",\r
385 Status\r
386 ));\r
387 }\r
388 goto error_handler;\r
389 }\r
390\r
391 DEBUG ((\r
392 DEBUG_INFO,\r
393 "FADT: EArmObjHypervisorVendorIdentity = 0x%lx\n",\r
394 HypervisorVendorInfo->HypervisorVendorId\r
395 ));\r
396\r
397 AcpiFadt.HypervisorVendorIdentity = HypervisorVendorInfo->HypervisorVendorId;\r
398\r
399error_handler:\r
400 return Status;\r
401}\r
402\r
403/** Update the Fixed Feature Flags in the FADT Table.\r
404\r
405 @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r
406 Protocol Interface.\r
407\r
408 @retval EFI_SUCCESS Success.\r
409 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
410 @retval EFI_NOT_FOUND The required object was not found.\r
411 @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r
412 Manager is less than the Object size for the\r
413 requested object.\r
414**/\r
415STATIC\r
416EFI_STATUS\r
417EFIAPI\r
418FadtAddFixedFeatureFlags (\r
419 IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol\r
420)\r
421{\r
422 EFI_STATUS Status;\r
423 CM_ARM_FIXED_FEATURE_FLAGS * FixedFeatureFlags;\r
424\r
425 ASSERT (CfgMgrProtocol != NULL);\r
426\r
427 // Get the Fixed feature flags from the Platform Configuration Manager\r
428 Status = GetEArmObjFixedFeatureFlags (\r
429 CfgMgrProtocol,\r
430 CM_NULL_TOKEN,\r
431 &FixedFeatureFlags,\r
432 NULL\r
433 );\r
434 if (EFI_ERROR (Status)) {\r
435 if (Status == EFI_NOT_FOUND) {\r
436 DEBUG ((\r
437 DEBUG_INFO,\r
438 "INFO: FADT: Platform does not define additional Fixed feature flags."\r
439 "Status = %r\n",\r
440 Status\r
441 ));\r
442 } else {\r
443 DEBUG ((\r
444 DEBUG_ERROR,\r
445 "ERROR: FADT: Failed to get Fixed feature flags. Status = %r\n",\r
446 Status\r
447 ));\r
448 }\r
449 goto error_handler;\r
450 }\r
451\r
452 DEBUG ((\r
453 DEBUG_INFO,\r
454 "FADT: EArmObjFixedFeatureFlags = 0x%x\n",\r
455 FixedFeatureFlags->Flags\r
456 ));\r
457\r
458 if ((FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK)) != 0) {\r
459 DEBUG ((\r
460 DEBUG_WARN,\r
461 "FADT: Invalid Fixed feature flags defined by platform,"\r
462 "Invalid Flags bits are = 0x%x\n",\r
463 (FixedFeatureFlags->Flags & ~(VALID_HARDWARE_REDUCED_FLAG_MASK))\r
464 ));\r
465 }\r
466\r
467 AcpiFadt.Flags |= (FixedFeatureFlags->Flags &\r
468 VALID_HARDWARE_REDUCED_FLAG_MASK);\r
469\r
470error_handler:\r
471 return Status;\r
472}\r
473\r
474/** Construct the FADT table.\r
475\r
476 This function invokes the Configuration Manager protocol interface\r
477 to get the required hardware information for generating the ACPI\r
478 table.\r
479\r
480 If this function allocates any resources then they must be freed\r
481 in the FreeXXXXTableResources function.\r
482\r
483 @param [in] This Pointer to the table generator.\r
484 @param [in] AcpiTableInfo Pointer to the ACPI Table Info.\r
485 @param [in] CfgMgrProtocol Pointer to the Configuration Manager\r
486 Protocol Interface.\r
487 @param [out] Table Pointer to the constructed ACPI Table.\r
488\r
489 @retval EFI_SUCCESS Table generated successfully.\r
490 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
491 @retval EFI_NOT_FOUND The required object was not found.\r
492 @retval EFI_BAD_BUFFER_SIZE The size returned by the Configuration\r
493 Manager is less than the Object size for the\r
494 requested object.\r
495**/\r
496STATIC\r
497EFI_STATUS\r
498EFIAPI\r
499BuildFadtTable (\r
500 IN CONST ACPI_TABLE_GENERATOR * CONST This,\r
501 IN CONST CM_STD_OBJ_ACPI_TABLE_INFO * CONST AcpiTableInfo,\r
502 IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL * CONST CfgMgrProtocol,\r
503 OUT EFI_ACPI_DESCRIPTION_HEADER ** CONST Table\r
504 )\r
505{\r
506 EFI_STATUS Status;\r
507\r
508 ASSERT (This != NULL);\r
509 ASSERT (AcpiTableInfo != NULL);\r
510 ASSERT (CfgMgrProtocol != NULL);\r
511 ASSERT (Table != NULL);\r
512 ASSERT (AcpiTableInfo->TableGeneratorId == This->GeneratorID);\r
513 ASSERT (AcpiTableInfo->AcpiTableSignature == This->AcpiTableSignature);\r
514\r
515 if ((AcpiTableInfo->AcpiTableRevision < This->MinAcpiTableRevision) ||\r
516 (AcpiTableInfo->AcpiTableRevision > This->AcpiTableRevision)) {\r
517 DEBUG ((\r
518 DEBUG_ERROR,\r
519 "ERROR: FADT: Requested table revision = %d, is not supported."\r
520 "Supported table revision: Minimum = %d, Maximum = %d\n",\r
521 AcpiTableInfo->AcpiTableRevision,\r
522 This->MinAcpiTableRevision,\r
523 This->AcpiTableRevision\r
524 ));\r
525 return EFI_INVALID_PARAMETER;\r
526 }\r
527\r
528 *Table = NULL;\r
529\r
530 Status = AddAcpiHeader (\r
531 CfgMgrProtocol,\r
532 This,\r
533 (EFI_ACPI_DESCRIPTION_HEADER*)&AcpiFadt,\r
e12bdeb1 534 AcpiTableInfo,\r
cd204e01
SM		 535 sizeof (EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE)\r
536 );\r
537 if (EFI_ERROR (Status)) {\r
538 DEBUG ((\r
539 DEBUG_ERROR,\r
540 "ERROR: FADT: Failed to add ACPI header. Status = %r\n",\r
541 Status\r
542 ));\r
543 goto error_handler;\r
544 }\r
545\r
546 // Update PmProfile Info\r
547 Status = FadtAddPmProfileInfo (CfgMgrProtocol);\r
548 if (EFI_ERROR (Status)) {\r
549 goto error_handler;\r
550 }\r
551\r
552 // Update BootArch Info\r
553 Status = FadtAddBootArchInfo (CfgMgrProtocol);\r
554 if (EFI_ERROR (Status)) {\r
555 goto error_handler;\r
556 }\r
557\r
558 // Add the Hypervisor Vendor Id if present\r
559 // Note if no hypervisor is present the zero bytes\r
560 // will be placed in this field.\r
561 Status = FadtAddHypervisorVendorId (CfgMgrProtocol);\r
562 if (EFI_ERROR (Status)) {\r
563 if (Status == EFI_NOT_FOUND) {\r
564 DEBUG ((\r
565 DEBUG_INFO,\r
566 "INFO: FADT: No Hypervisor Vendor ID found," \\r
567 " assuming no Hypervisor is present in the firmware.\n"\r
568 ));\r
569 } else {\r
570 DEBUG ((\r
571 DEBUG_ERROR,\r
572 "ERROR: FADT: Error reading Hypervisor Vendor ID, Status = %r",\r
573 Status\r
574 ));\r
575 goto error_handler;\r
576 }\r
577 }\r
578\r
579 Status = FadtAddFixedFeatureFlags (CfgMgrProtocol);\r
580 if (EFI_ERROR (Status)) {\r
581 if (Status == EFI_NOT_FOUND) {\r
582 DEBUG ((\r
583 DEBUG_INFO,\r
584 "INFO: FADT: No Fixed feature flags found," \\r
585 " assuming no additional flags are defined for the platform.\n"\r
586 ));\r
587 Status = EFI_SUCCESS;\r
588 } else {\r
589 DEBUG ((\r
590 DEBUG_ERROR,\r
591 "ERROR: FADT: Error reading Fixed feature flags, Status = %r",\r
592 Status\r
593 ));\r
594 goto error_handler;\r
595 }\r
596 }\r
597\r
598 *Table = (EFI_ACPI_DESCRIPTION_HEADER*)&AcpiFadt;\r
599error_handler:\r
600 return Status;\r
601}\r
602\r
603/** This macro defines the FADT Table Generator revision.\r
604*/\r
605#define FADT_GENERATOR_REVISION CREATE_REVISION (1, 0)\r
606\r
607/** The interface for the FADT Table Generator.\r
608*/\r
609STATIC\r
610CONST\r
611ACPI_TABLE_GENERATOR FadtGenerator = {\r
612 // Generator ID\r
613 CREATE_STD_ACPI_TABLE_GEN_ID (EStdAcpiTableIdFadt),\r
614 // Generator Description\r
615 L"ACPI.STD.FADT.GENERATOR",\r
616 // ACPI Table Signature\r
617 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_SIGNATURE,\r
618 // ACPI Table Revision supported by this Generator\r
619 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_REVISION,\r
620 // Minimum supported ACPI Table Revision\r
621 EFI_ACPI_6_2_FIXED_ACPI_DESCRIPTION_TABLE_REVISION,\r
622 // Creator ID\r
623 TABLE_GENERATOR_CREATOR_ID_ARM,\r
624 // Creator Revision\r
625 FADT_GENERATOR_REVISION,\r
626 // Build Table function\r
627 BuildFadtTable,\r
628 // No additional resources are allocated by the generator.\r
629 // Hence the Free Resource function is not required.\r
630 NULL,\r
631 // Extended build function not needed\r
632 NULL,\r
633 // Extended build function not implemented by the generator.\r
634 // Hence extended free resource function is not required.\r
635 NULL\r
636};\r
637\r
638/** Register the Generator with the ACPI Table Factory.\r
639\r
640 @param [in] ImageHandle The handle to the image.\r
641 @param [in] SystemTable Pointer to the System Table.\r
642\r
643 @retval EFI_SUCCESS The Generator is registered.\r
644 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
645 @retval EFI_ALREADY_STARTED The Generator for the Table ID\r
646 is already registered.\r
647**/\r
648EFI_STATUS\r
649EFIAPI\r
650AcpiFadtLibConstructor (\r
651 IN CONST EFI_HANDLE ImageHandle,\r
652 IN EFI_SYSTEM_TABLE * CONST SystemTable\r
653 )\r
654{\r
655 EFI_STATUS Status;\r
656 Status = RegisterAcpiTableGenerator (&FadtGenerator);\r
657 DEBUG ((DEBUG_INFO, "FADT: Register Generator. Status = %r\n", Status));\r
658 ASSERT_EFI_ERROR (Status);\r
659 return Status;\r
660}\r
661\r
662/** Deregister the Generator from the ACPI Table Factory.\r
663\r
664 @param [in] ImageHandle The handle to the image.\r
665 @param [in] SystemTable Pointer to the System Table.\r
666\r
667 @retval EFI_SUCCESS The Generator is deregistered.\r
668 @retval EFI_INVALID_PARAMETER A parameter is invalid.\r
669 @retval EFI_NOT_FOUND The Generator is not registered.\r
670**/\r
671EFI_STATUS\r
672EFIAPI\r
673AcpiFadtLibDestructor (\r
674 IN CONST EFI_HANDLE ImageHandle,\r
675 IN EFI_SYSTEM_TABLE * CONST SystemTable\r
676 )\r
677{\r
678 EFI_STATUS Status;\r
679 Status = DeregisterAcpiTableGenerator (&FadtGenerator);\r
680 DEBUG ((DEBUG_INFO, "FADT: Deregister Generator. Status = %r\n", Status));\r
681 ASSERT_EFI_ERROR (Status);\r
682 return Status;\r
683}\r
EFI Development Kit II mirror for PVE