2 Definition of Pei Core Structures and Services
4 Copyright (c) 2006 - 2010, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
19 #include <Ppi/DxeIpl.h>
20 #include <Ppi/MemoryDiscovered.h>
21 #include <Ppi/StatusCode.h>
22 #include <Ppi/Reset.h>
23 #include <Ppi/FirmwareVolume.h>
24 #include <Ppi/FirmwareVolumeInfo.h>
25 #include <Ppi/Decompress.h>
26 #include <Ppi/GuidedSectionExtraction.h>
27 #include <Ppi/LoadFile.h>
28 #include <Ppi/Security2.h>
29 #include <Ppi/TemporaryRamSupport.h>
30 #include <Library/DebugLib.h>
31 #include <Library/PeiCoreEntryPoint.h>
32 #include <Library/BaseLib.h>
33 #include <Library/HobLib.h>
34 #include <Library/PerformanceLib.h>
35 #include <Library/PeiServicesLib.h>
36 #include <Library/ReportStatusCodeLib.h>
37 #include <Library/PeCoffLib.h>
38 #include <Library/PeCoffGetEntryPointLib.h>
39 #include <Library/BaseMemoryLib.h>
40 #include <Library/CacheMaintenanceLib.h>
41 #include <Library/TimerLib.h>
42 #include <Library/PcdLib.h>
43 #include <IndustryStandard/PeImage.h>
44 #include <Library/PeiServicesTablePointerLib.h>
45 #include <Library/MemoryAllocationLib.h>
46 #include <Guid/FirmwareFileSystem2.h>
47 #include <Guid/AprioriFileName.h>
50 /// It is an FFS type extension used for PeiFindFileEx. It indicates current
51 /// Ffs searching is for all PEIMs can be dispatched by PeiCore.
53 #define PEI_CORE_INTERNAL_FFS_FILE_DISPATCH_TYPE 0xff
56 /// Pei Core private data structures
59 EFI_PEI_PPI_DESCRIPTOR
*Ppi
;
60 EFI_PEI_NOTIFY_DESCRIPTOR
*Notify
;
62 } PEI_PPI_LIST_POINTERS
;
65 /// PPI database structure which contains two link: PpiList and NotifyList. PpiList
66 /// is in head of PpiListPtrs array and notify is in end of PpiListPtrs.
70 /// index of end of PpiList link list.
74 /// index of end of notify link list.
78 /// index of the dispatched notify list.
82 /// index of last installed Ppi description in PpiList link list.
84 INTN LastDispatchedInstall
;
86 /// index of last dispatched notify in Notify link list.
88 INTN LastDispatchedNotify
;
92 PEI_PPI_LIST_POINTERS PpiListPtrs
[FixedPcdGet32 (PcdPeiCoreMaxPpiSupported
)];
97 // PEI_CORE_FV_HANDE.PeimState
98 // Do not change these values as there is code doing math to change states.
99 // Look for Private->Fv[FvCount].PeimState[PeimCount]++;
101 #define PEIM_STATE_NOT_DISPATCHED 0x00
102 #define PEIM_STATE_DISPATCHED 0x01
103 #define PEIM_STATE_REGISITER_FOR_SHADOW 0x02
104 #define PEIM_STATE_DONE 0x03
107 EFI_FIRMWARE_VOLUME_HEADER
*FvHeader
;
108 EFI_PEI_FIRMWARE_VOLUME_PPI
*FvPpi
;
109 EFI_PEI_FV_HANDLE FvHandle
;
110 UINT8 PeimState
[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv
)];
111 EFI_PEI_FILE_HANDLE FvFileHandles
[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv
)];
113 } PEI_CORE_FV_HANDLE
;
119 EFI_PEI_NOTIFY_DESCRIPTOR NotifyDescriptor
;
120 } PEI_CORE_UNKNOW_FORMAT_FV_INFO
;
122 #define CACHE_SETION_MAX_NUMBER 0x10
124 EFI_COMMON_SECTION_HEADER
* Section
[CACHE_SETION_MAX_NUMBER
];
125 VOID
* SectionData
[CACHE_SETION_MAX_NUMBER
];
126 UINTN SectionSize
[CACHE_SETION_MAX_NUMBER
];
127 UINTN AllSectionCount
;
129 } CACHE_SECTION_DATA
;
132 #define PEI_CORE_HANDLE_SIGNATURE SIGNATURE_32('P','e','i','C')
135 /// Pei Core private data structure instance
141 /// Point to ServiceTableShadow
143 EFI_PEI_SERVICES
*Ps
;
144 PEI_PPI_DATABASE PpiData
;
147 /// The count of FVs which contains FFS and could be dispatched by PeiCore.
152 /// The instance arrary for FVs which contains FFS and could be dispatched by PeiCore.
154 PEI_CORE_FV_HANDLE Fv
[FixedPcdGet32 (PcdPeiCoreMaxFvSupported
)];
155 PEI_CORE_UNKNOW_FORMAT_FV_INFO UnknownFvInfo
[FixedPcdGet32 (PcdPeiCoreMaxFvSupported
)];
156 UINTN UnknownFvInfoCount
;
158 EFI_PEI_FILE_HANDLE CurrentFvFileHandles
[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv
)];
160 UINTN CurrentPeimFvCount
;
161 UINTN CurrentPeimCount
;
162 EFI_PEI_FILE_HANDLE CurrentFileHandle
;
163 BOOLEAN PeimNeedingDispatch
;
164 BOOLEAN PeimDispatchOnThisPass
;
165 BOOLEAN PeimDispatcherReenter
;
166 EFI_PEI_HOB_POINTERS HobList
;
167 BOOLEAN SwitchStackSignal
;
168 BOOLEAN PeiMemoryInstalled
;
169 EFI_PHYSICAL_ADDRESS StackBase
;
172 EFI_PEI_SECURITY2_PPI
*PrivateSecurityPpi
;
173 EFI_PEI_SERVICES ServiceTableShadow
;
174 EFI_PEI_PPI_DESCRIPTOR
*XipLoadFile
;
175 EFI_PHYSICAL_ADDRESS PhysicalMemoryBegin
;
176 UINT64 PhysicalMemoryLength
;
177 EFI_PHYSICAL_ADDRESS FreePhysicalMemoryTop
;
178 VOID
* ShadowedPeiCore
;
179 CACHE_SECTION_DATA CacheSection
;
181 // For Loading modules at fixed address feature to cache the top address below which the
182 // Runtime code, boot time code and PEI memory will be placed. Please note that the offset between this field
183 // and Ps should not be changed since maybe user could get this top address by using the offet to Ps.
185 EFI_PHYSICAL_ADDRESS LoadModuleAtFixAddressTopAddress
;
187 // The field is define for Loading modules at fixed address feature to tracker the PEI code
188 // memory range usage. It is a bit mapped array in which every bit indicates the correspoding memory page
191 UINT64
*PeiCodeMemoryRangeUsageBitMap
;
195 /// Pei Core Instance Data Macros
197 #define PEI_CORE_INSTANCE_FROM_PS_THIS(a) \
198 CR(a, PEI_CORE_INSTANCE, Ps, PEI_CORE_HANDLE_SIGNATURE)
201 Function Pointer type for PeiCore function.
202 @param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
203 and location of temporary RAM, the stack location and the BFV location.
204 @param PpiList Points to a list of one or more PPI descriptors to be installed initially by the PEI core.
205 An empty PPI list consists of a single descriptor with the end-tag
206 EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. As part of its initialization
207 phase, the PEI Foundation will add these SEC-hosted PPIs to its PPI database such
208 that both the PEI Foundation and any modules can leverage the associated service
209 calls and/or code in these early PPIs
210 @param OldCoreData Pointer to old core data that is used to initialize the
215 (EFIAPI
*PEICORE_FUNCTION_POINTER
)(
216 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
,
217 IN CONST EFI_PEI_PPI_DESCRIPTOR
*PpiList
,
218 IN PEI_CORE_INSTANCE
*OldCoreData
222 /// Union of temporarily used function pointers (to save stack space)
225 PEICORE_FUNCTION_POINTER PeiCore
;
226 EFI_PEIM_ENTRY_POINT2 PeimEntry
;
227 EFI_PEIM_NOTIFY_ENTRY_POINT PeimNotifyEntry
;
228 EFI_DXE_IPL_PPI
*DxeIpl
;
229 EFI_PEI_PPI_DESCRIPTOR
*PpiDescriptor
;
230 EFI_PEI_NOTIFY_DESCRIPTOR
*NotifyDescriptor
;
232 } PEI_CORE_TEMP_POINTERS
;
235 CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
;
236 EFI_PEI_PPI_DESCRIPTOR
*PpiList
;
238 } PEI_CORE_PARAMETERS
;
245 The entry routine to Pei Core, invoked by PeiMain during transition
246 from SEC to PEI. After switching stack in the PEI core, it will restart
247 with the old core data.
250 @param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
251 and location of temporary RAM, the stack location and the BFV location.
252 @param PpiList Points to a list of one or more PPI descriptors to be installed initially by the PEI core.
253 An empty PPI list consists of a single descriptor with the end-tag
254 EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. As part of its initialization
255 phase, the PEI Foundation will add these SEC-hosted PPIs to its PPI database such
256 that both the PEI Foundation and any modules can leverage the associated service
257 calls and/or code in these early PPIs
258 @param Data Pointer to old core data that is used to initialize the
265 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
,
266 IN CONST EFI_PEI_PPI_DESCRIPTOR
*PpiList
,
271 // Dispatcher support functions
276 This is the POSTFIX version of the dependency evaluator. When a
277 PUSH [PPI GUID] is encountered, a pointer to the GUID is stored on
278 the evaluation stack. When that entry is poped from the evaluation
279 stack, the PPI is checked if it is installed. This method allows
280 some time savings as not all PPIs must be checked for certain
281 operation types (AND, OR).
284 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
285 @param DependencyExpression Pointer to a dependency expression. The Grammar adheres to
286 the BNF described above and is stored in postfix notation.
288 @retval TRUE if it is a well-formed Grammar
289 @retval FALSE if the dependency expression overflows the evaluation stack
290 if the dependency expression underflows the evaluation stack
291 if the dependency expression is not a well-formed Grammar.
295 PeimDispatchReadiness (
296 IN EFI_PEI_SERVICES
**PeiServices
,
297 IN VOID
*DependencyExpression
301 Conduct PEIM dispatch.
303 @param SecCoreData Pointer to the data structure containing SEC to PEI handoff data
304 @param PrivateData Pointer to the private data passed in from caller
309 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
,
310 IN PEI_CORE_INSTANCE
*PrivateData
314 Initialize the Dispatcher's data members
316 @param PrivateData PeiCore's private data structure
317 @param OldCoreData Old data from SecCore
318 NULL if being run in non-permament memory mode.
319 @param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
320 and location of temporary RAM, the stack location and the BFV location.
324 InitializeDispatcherData (
325 IN PEI_CORE_INSTANCE
*PrivateData
,
326 IN PEI_CORE_INSTANCE
*OldCoreData
,
327 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
331 This routine parses the Dependency Expression, if available, and
332 decides if the module can be executed.
335 @param Private PeiCore's private data structure
336 @param FileHandle PEIM's file handle
337 @param PeimCount The index of last dispatched PEIM.
339 @retval TRUE Can be dispatched
340 @retval FALSE Cannot be dispatched
345 IN PEI_CORE_INSTANCE
*Private
,
346 IN EFI_PEI_FILE_HANDLE FileHandle
,
351 // PPI support functions
355 Initialize PPI services.
357 @param PrivateData Pointer to the PEI Core data.
358 @param OldCoreData Pointer to old PEI Core data.
359 NULL if being run in non-permament memory mode.
363 InitializePpiServices (
364 IN PEI_CORE_INSTANCE
*PrivateData
,
365 IN PEI_CORE_INSTANCE
*OldCoreData
370 Migrate the Hob list from the temporary memory stack to PEI installed memory.
372 @param PrivateData Pointer to PeiCore's private data structure.
373 @param OldCheckingBottom Bottom of temporary memory range. All Ppi in this range
374 will be fixup for PpiData and PpiDescriptor pointer.
375 @param OldCheckingTop Top of temporary memory range. All Ppi in this range
376 will be fixup for PpiData and PpiDescriptor.
377 @param Fixup The address difference between
378 the new Hob list and old Hob list.
383 IN PEI_CORE_INSTANCE
*PrivateData
,
384 IN UINTN OldCheckingBottom
,
385 IN UINTN OldCheckingTop
,
391 Install PPI services. It is implementation of EFI_PEI_SERVICE.InstallPpi.
393 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
394 @param PpiList Pointer to ppi array that want to be installed.
396 @retval EFI_SUCCESS if all PPIs in PpiList are successfully installed.
397 @retval EFI_INVALID_PARAMETER if PpiList is NULL pointer
398 if any PPI in PpiList is not valid
399 @retval EFI_OUT_OF_RESOURCES if there is no more memory resource to install PPI
405 IN CONST EFI_PEI_SERVICES
**PeiServices
,
406 IN CONST EFI_PEI_PPI_DESCRIPTOR
*PpiList
411 Re-Install PPI services.
413 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
414 @param OldPpi Pointer to the old PEI PPI Descriptors.
415 @param NewPpi Pointer to the new PEI PPI Descriptors.
417 @retval EFI_SUCCESS if the operation was successful
418 @retval EFI_INVALID_PARAMETER if OldPpi or NewPpi is NULL
419 if NewPpi is not valid
420 @retval EFI_NOT_FOUND if the PPI was not in the database
426 IN CONST EFI_PEI_SERVICES
**PeiServices
,
427 IN CONST EFI_PEI_PPI_DESCRIPTOR
*OldPpi
,
428 IN CONST EFI_PEI_PPI_DESCRIPTOR
*NewPpi
433 Locate a given named PPI.
436 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
437 @param Guid Pointer to GUID of the PPI.
438 @param Instance Instance Number to discover.
439 @param PpiDescriptor Pointer to reference the found descriptor. If not NULL,
440 returns a pointer to the descriptor (includes flags, etc)
441 @param Ppi Pointer to reference the found PPI
443 @retval EFI_SUCCESS if the PPI is in the database
444 @retval EFI_NOT_FOUND if the PPI is not in the database
450 IN CONST EFI_PEI_SERVICES
**PeiServices
,
451 IN CONST EFI_GUID
*Guid
,
453 IN OUT EFI_PEI_PPI_DESCRIPTOR
**PpiDescriptor
,
459 Install a notification for a given PPI.
462 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
463 @param NotifyList Pointer to list of Descriptors to notify upon.
465 @retval EFI_SUCCESS if successful
466 @retval EFI_OUT_OF_RESOURCES if no space in the database
467 @retval EFI_INVALID_PARAMETER if not a good decriptor
473 IN CONST EFI_PEI_SERVICES
**PeiServices
,
474 IN CONST EFI_PEI_NOTIFY_DESCRIPTOR
*NotifyList
479 Process the Notify List at dispatch level.
481 @param PrivateData PeiCore's private data structure.
486 IN PEI_CORE_INSTANCE
*PrivateData
491 Dispatch notifications.
493 @param PrivateData PeiCore's private data structure
494 @param NotifyType Type of notify to fire.
495 @param InstallStartIndex Install Beginning index.
496 @param InstallStopIndex Install Ending index.
497 @param NotifyStartIndex Notify Beginning index.
498 @param NotifyStopIndex Notify Ending index.
503 IN PEI_CORE_INSTANCE
*PrivateData
,
505 IN INTN InstallStartIndex
,
506 IN INTN InstallStopIndex
,
507 IN INTN NotifyStartIndex
,
508 IN INTN NotifyStopIndex
512 // Boot mode support functions
515 This service enables PEIMs to ascertain the present value of the boot mode.
517 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
518 @param BootMode A pointer to contain the value of the boot mode.
520 @retval EFI_SUCCESS The boot mode was returned successfully.
521 @retval EFI_INVALID_PARAMETER BootMode is NULL.
527 IN CONST EFI_PEI_SERVICES
**PeiServices
,
528 IN OUT EFI_BOOT_MODE
*BootMode
532 This service enables PEIMs to update the boot mode variable.
535 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
536 @param BootMode The value of the boot mode to set.
538 @return EFI_SUCCESS The value was successfully updated
544 IN CONST EFI_PEI_SERVICES
**PeiServices
,
545 IN EFI_BOOT_MODE BootMode
549 // Security support functions
553 Initialize the security services.
555 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
556 @param OldCoreData Pointer to the old core data.
557 NULL if being run in non-permament memory mode.
561 InitializeSecurityServices (
562 IN EFI_PEI_SERVICES
**PeiServices
,
563 IN PEI_CORE_INSTANCE
*OldCoreData
567 Verify a Firmware volume.
569 @param CurrentFvAddress Pointer to the current Firmware Volume under consideration
571 @retval EFI_SUCCESS Firmware Volume is legal
572 @retval EFI_SECURITY_VIOLATION Firmware Volume fails integrity test
577 IN EFI_FIRMWARE_VOLUME_HEADER
*CurrentFvAddress
582 Provide a callout to the security verification service.
585 @param PrivateData PeiCore's private data structure
586 @param VolumeHandle Handle of FV
587 @param FileHandle Handle of PEIM's ffs
589 @retval EFI_SUCCESS Image is OK
590 @retval EFI_SECURITY_VIOLATION Image is illegal
595 IN PEI_CORE_INSTANCE
*PrivateData
,
596 IN EFI_PEI_FV_HANDLE VolumeHandle
,
597 IN EFI_PEI_FILE_HANDLE FileHandle
602 Gets the pointer to the HOB List.
605 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
606 @param HobList Pointer to the HOB List.
608 @retval EFI_SUCCESS Get the pointer of HOB List
609 @retval EFI_NOT_AVAILABLE_YET the HOB List is not yet published
610 @retval EFI_INVALID_PARAMETER HobList is NULL (in debug mode)
616 IN CONST EFI_PEI_SERVICES
**PeiServices
,
617 IN OUT VOID
**HobList
621 Add a new HOB to the HOB List.
623 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
624 @param Type Type of the new HOB.
625 @param Length Length of the new HOB to allocate.
626 @param Hob Pointer to the new HOB.
628 @return EFI_SUCCESS Success to create hob.
629 @retval EFI_INVALID_PARAMETER if Hob is NULL
630 @retval EFI_NOT_AVAILABLE_YET if HobList is still not available.
631 @retval EFI_OUT_OF_RESOURCES if there is no more memory to grow the Hoblist.
637 IN CONST EFI_PEI_SERVICES
**PeiServices
,
645 Builds a Handoff Information Table HOB
647 @param BootMode - Current Bootmode
648 @param MemoryBegin - Start Memory Address.
649 @param MemoryLength - Length of Memory.
651 @return EFI_SUCCESS Always success to initialize HOB.
655 PeiCoreBuildHobHandoffInfoTable (
656 IN EFI_BOOT_MODE BootMode
,
657 IN EFI_PHYSICAL_ADDRESS MemoryBegin
,
658 IN UINT64 MemoryLength
663 // FFS Fw Volume support functions
666 Searches for the next matching file in the firmware volume.
668 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
669 @param SearchType Filter to find only files of this type.
670 Type EFI_FV_FILETYPE_ALL causes no filtering to be done.
671 @param FvHandle Handle of firmware volume in which to search.
672 @param FileHandle On entry, points to the current handle from which to begin searching or NULL to start
673 at the beginning of the firmware volume. On exit, points the file handle of the next file
674 in the volume or NULL if there are no more files.
676 @retval EFI_NOT_FOUND The file was not found.
677 @retval EFI_NOT_FOUND The header checksum was not zero.
678 @retval EFI_SUCCESS The file was found.
684 IN CONST EFI_PEI_SERVICES
**PeiServices
,
686 IN EFI_PEI_FV_HANDLE FvHandle
,
687 IN OUT EFI_PEI_FILE_HANDLE
*FileHandle
691 Searches for the next matching section within the specified file.
693 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
694 @param SectionType Filter to find only sections of this type.
695 @param FileHandle Pointer to the current file to search.
696 @param SectionData A pointer to the discovered section, if successful.
697 NULL if section not found
699 @retval EFI_NOT_FOUND The section was not found.
700 @retval EFI_SUCCESS The section was found.
705 PeiFfsFindSectionData (
706 IN CONST EFI_PEI_SERVICES
**PeiServices
,
707 IN EFI_SECTION_TYPE SectionType
,
708 IN EFI_PEI_FILE_HANDLE FileHandle
,
709 OUT VOID
**SectionData
713 Search the firmware volumes by index
715 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
716 @param Instance This instance of the firmware volume to find. The value 0 is the Boot Firmware
718 @param VolumeHandle On exit, points to the next volume handle or NULL if it does not exist.
720 @retval EFI_INVALID_PARAMETER VolumeHandle is NULL
721 @retval EFI_NOT_FOUND The volume was not found.
722 @retval EFI_SUCCESS The volume was found.
727 PeiFfsFindNextVolume (
728 IN CONST EFI_PEI_SERVICES
**PeiServices
,
730 IN OUT EFI_PEI_FV_HANDLE
*VolumeHandle
734 // Memory support functions
738 Initialize the memory services.
740 @param PrivateData PeiCore's private data structure
741 @param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
742 and location of temporary RAM, the stack location and the BFV location.
743 @param OldCoreData Pointer to the PEI Core data.
744 NULL if being run in non-permament memory mode.
748 InitializeMemoryServices (
749 IN PEI_CORE_INSTANCE
*PrivateData
,
750 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
,
751 IN PEI_CORE_INSTANCE
*OldCoreData
756 Install the permanent memory is now available.
757 Creates HOB (PHIT and Stack).
759 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
760 @param MemoryBegin Start of memory address.
761 @param MemoryLength Length of memory.
763 @return EFI_SUCCESS Always success.
768 PeiInstallPeiMemory (
769 IN CONST EFI_PEI_SERVICES
**PeiServices
,
770 IN EFI_PHYSICAL_ADDRESS MemoryBegin
,
771 IN UINT64 MemoryLength
776 Memory allocation service on permanent memory,
777 not usable prior to the memory installation.
780 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
781 @param MemoryType Type of memory to allocate.
782 @param Pages Number of pages to allocate.
783 @param Memory Pointer of memory allocated.
785 @retval EFI_SUCCESS The allocation was successful
786 @retval EFI_INVALID_PARAMETER Only AllocateAnyAddress is supported.
787 @retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available
788 @retval EFI_OUT_OF_RESOURCES There is not enough HOB heap to satisfy the requirement
789 to allocate the number of pages.
795 IN CONST EFI_PEI_SERVICES
**PeiServices
,
796 IN EFI_MEMORY_TYPE MemoryType
,
798 OUT EFI_PHYSICAL_ADDRESS
*Memory
803 Memory allocation service on the temporary memory.
806 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
807 @param Size Amount of memory required
808 @param Buffer Address of pointer to the buffer
810 @retval EFI_SUCCESS The allocation was successful
811 @retval EFI_OUT_OF_RESOURCES There is not enough heap to satisfy the requirement
812 to allocate the requested size.
818 IN CONST EFI_PEI_SERVICES
**PeiServices
,
825 Routine for load image file.
828 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
829 @param FileHandle Pointer to the FFS file header of the image.
830 @param PeimState The dispatch state of the input PEIM handle.
831 @param EntryPoint Pointer to entry point of specified image file for output.
832 @param AuthenticationState Pointer to attestation authentication state of image.
834 @retval EFI_SUCCESS Image is successfully loaded.
835 @retval EFI_NOT_FOUND Fail to locate necessary PPI
836 @retval Others Fail to load file.
841 IN CONST EFI_PEI_SERVICES
**PeiServices
,
842 IN EFI_PEI_FILE_HANDLE FileHandle
,
844 OUT EFI_PHYSICAL_ADDRESS
*EntryPoint
,
845 OUT UINT32
*AuthenticationState
850 Core version of the Status Code reporter
853 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
854 @param CodeType Type of Status Code.
855 @param Value Value to output for Status Code.
856 @param Instance Instance Number of this status code.
857 @param CallerId ID of the caller of this status code.
858 @param Data Optional data associated with this status code.
860 @retval EFI_SUCCESS if status code is successfully reported
861 @retval EFI_NOT_AVAILABLE_YET if StatusCodePpi has not been installed
866 PeiReportStatusCode (
867 IN CONST EFI_PEI_SERVICES
**PeiServices
,
868 IN EFI_STATUS_CODE_TYPE CodeType
,
869 IN EFI_STATUS_CODE_VALUE Value
,
871 IN CONST EFI_GUID
*CallerId
,
872 IN CONST EFI_STATUS_CODE_DATA
*Data OPTIONAL
877 Core version of the Reset System
880 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
882 @retval EFI_NOT_AVAILABLE_YET PPI not available yet.
883 @retval EFI_DEVICE_ERROR Did not reset system.
884 Otherwise, resets the system.
890 IN CONST EFI_PEI_SERVICES
**PeiServices
895 Initialize PeiCore Fv List.
898 @param PrivateData - Pointer to PEI_CORE_INSTANCE.
899 @param SecCoreData - Pointer to EFI_SEC_PEI_HAND_OFF.
904 IN PEI_CORE_INSTANCE
*PrivateData
,
905 IN CONST EFI_SEC_PEI_HAND_OFF
*SecCoreData
909 Process Firmware Volum Information once FvInfoPPI install.
911 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
912 @param NotifyDescriptor Address of the notification descriptor data structure.
913 @param Ppi Address of the PPI that was installed.
915 @retval EFI_SUCCESS if the interface could be successfully installed
920 FirmwareVolmeInfoPpiNotifyCallback (
921 IN EFI_PEI_SERVICES
**PeiServices
,
922 IN EFI_PEI_NOTIFY_DESCRIPTOR
*NotifyDescriptor
,
928 Given the input VolumeHandle, search for the next matching name file.
930 @param FileName File name to search.
931 @param VolumeHandle The current FV to search.
932 @param FileHandle Pointer to the file matching name in VolumeHandle.
933 NULL if file not found
935 @retval EFI_NOT_FOUND No files matching the search criteria were found
936 @retval EFI_SUCCESS Success to search given file
941 PeiFfsFindFileByName (
942 IN CONST EFI_GUID
*FileName
,
943 IN EFI_PEI_FV_HANDLE VolumeHandle
,
944 OUT EFI_PEI_FILE_HANDLE
*FileHandle
948 Returns information about a specific file.
950 @param FileHandle Handle of the file.
951 @param FileInfo Upon exit, points to the file's information.
953 @retval EFI_INVALID_PARAMETER If FileInfo is NULL.
954 @retval EFI_INVALID_PARAMETER If FileHandle does not represent a valid file.
955 @retval EFI_SUCCESS File information returned.
961 IN EFI_PEI_FILE_HANDLE FileHandle
,
962 OUT EFI_FV_FILE_INFO
*FileInfo
966 Returns information about the specified volume.
968 @param VolumeHandle Handle of the volume.
969 @param VolumeInfo Upon exit, points to the volume's information.
971 @retval EFI_INVALID_PARAMETER If VolumeHandle does not represent a valid volume.
972 @retval EFI_INVALID_PARAMETER If VolumeInfo is NULL.
973 @retval EFI_SUCCESS Volume information returned.
977 PeiFfsGetVolumeInfo (
978 IN EFI_PEI_FV_HANDLE VolumeHandle
,
979 OUT EFI_FV_INFO
*VolumeInfo
983 This routine enable a PEIM to register itself to shadow when PEI Foundation
984 discovery permanent memory.
986 @param FileHandle File handle of a PEIM.
988 @retval EFI_NOT_FOUND The file handle doesn't point to PEIM itself.
989 @retval EFI_ALREADY_STARTED Indicate that the PEIM has been registered itself.
990 @retval EFI_SUCCESS Successfully to register itself.
995 PeiRegisterForShadow (
996 IN EFI_PEI_FILE_HANDLE FileHandle
1000 Initialize image service that install PeiLoadFilePpi.
1002 @param PrivateData Pointer to PeiCore's private data structure PEI_CORE_INSTANCE.
1003 @param OldCoreData Pointer to Old PeiCore's private data.
1004 If NULL, PeiCore is entered at first time, stack/heap in temporary memory.
1005 If not NULL, PeiCore is entered at second time, stack/heap has been moved
1006 to permenent memory.
1010 InitializeImageServices (
1011 IN PEI_CORE_INSTANCE
*PrivateData
,
1012 IN PEI_CORE_INSTANCE
*OldCoreData
1016 The wrapper function of PeiLoadImageLoadImage().
1018 @param This Pointer to EFI_PEI_LOAD_FILE_PPI.
1019 @param FileHandle Pointer to the FFS file header of the image.
1020 @param ImageAddressArg Pointer to PE/TE image.
1021 @param ImageSizeArg Size of PE/TE image.
1022 @param EntryPoint Pointer to entry point of specified image file for output.
1023 @param AuthenticationState Pointer to attestation authentication state of image.
1025 @return Status of PeiLoadImageLoadImage().
1030 PeiLoadImageLoadImageWrapper (
1031 IN CONST EFI_PEI_LOAD_FILE_PPI
*This
,
1032 IN EFI_PEI_FILE_HANDLE FileHandle
,
1033 OUT EFI_PHYSICAL_ADDRESS
*ImageAddressArg
, OPTIONAL
1034 OUT UINT64
*ImageSizeArg
, OPTIONAL
1035 OUT EFI_PHYSICAL_ADDRESS
*EntryPoint
,
1036 OUT UINT32
*AuthenticationState
1041 Provide a callback for when the security PPI is installed.
1043 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
1044 @param NotifyDescriptor The descriptor for the notification event.
1045 @param Ppi Pointer to the PPI in question.
1047 @return Always success
1052 SecurityPpiNotifyCallback (
1053 IN EFI_PEI_SERVICES
**PeiServices
,
1054 IN EFI_PEI_NOTIFY_DESCRIPTOR
*NotifyDescriptor
,
1059 Get Fv image from the FV type file, then install FV INFO ppi, Build FV hob.
1061 @param ParentFvCoreHandle Pointer of EFI_CORE_FV_HANDLE to parent Fv image that contain this Fv image.
1062 @param ParentFvFileHandle File handle of a Fv type file that contain this Fv image.
1064 @retval EFI_NOT_FOUND FV image can't be found.
1065 @retval EFI_SUCCESS Successfully to process it.
1066 @retval EFI_OUT_OF_RESOURCES Can not allocate page when aligning FV image
1067 @retval Others Can not find EFI_SECTION_FIRMWARE_VOLUME_IMAGE section
1072 IN PEI_CORE_FV_HANDLE
*ParentFvCoreHandle
,
1073 IN EFI_PEI_FILE_HANDLE ParentFvFileHandle
1077 Get instance of PEI_CORE_FV_HANDLE for next volume according to given index.
1079 This routine also will install FvInfo ppi for FV hob in PI ways.
1081 @param Private Pointer of PEI_CORE_INSTANCE
1082 @param Instance The index of FV want to be searched.
1084 @return Instance of PEI_CORE_FV_HANDLE.
1086 PEI_CORE_FV_HANDLE
*
1087 FindNextCoreFvHandle (
1088 IN PEI_CORE_INSTANCE
*Private
,
1093 // Default EFI_PEI_CPU_IO_PPI support for EFI_PEI_SERVICES table when PeiCore initialization.
1097 Memory-based read services.
1099 This function is to perform the Memory Access Read service based on installed
1100 instance of the EFI_PEI_CPU_IO_PPI.
1101 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1102 return EFI_NOT_YET_AVAILABLE.
1104 @param PeiServices An indirect pointer to the PEI Services Table
1105 published by the PEI Foundation.
1106 @param This Pointer to local data for the interface.
1107 @param Width The width of the access. Enumerated in bytes.
1108 @param Address The physical address of the access.
1109 @param Count The number of accesses to perform.
1110 @param Buffer A pointer to the buffer of data.
1112 @retval EFI_SUCCESS The function completed successfully.
1113 @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
1118 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1119 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1120 IN EFI_PEI_CPU_IO_PPI_WIDTH Width
,
1127 Memory-based write services.
1129 This function is to perform the Memory Access Write service based on installed
1130 instance of the EFI_PEI_CPU_IO_PPI.
1131 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1132 return EFI_NOT_YET_AVAILABLE.
1134 @param PeiServices An indirect pointer to the PEI Services Table
1135 published by the PEI Foundation.
1136 @param This Pointer to local data for the interface.
1137 @param Width The width of the access. Enumerated in bytes.
1138 @param Address The physical address of the access.
1139 @param Count The number of accesses to perform.
1140 @param Buffer A pointer to the buffer of data.
1142 @retval EFI_SUCCESS The function completed successfully.
1143 @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
1147 PeiDefaultMemWrite (
1148 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1149 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1150 IN EFI_PEI_CPU_IO_PPI_WIDTH Width
,
1157 IO-based read services.
1159 This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI.
1160 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1161 return EFI_NOT_YET_AVAILABLE.
1163 @param PeiServices An indirect pointer to the PEI Services Table
1164 published by the PEI Foundation.
1165 @param This Pointer to local data for the interface.
1166 @param Width The width of the access. Enumerated in bytes.
1167 @param Address The physical address of the access.
1168 @param Count The number of accesses to perform.
1169 @param Buffer A pointer to the buffer of data.
1171 @retval EFI_SUCCESS The function completed successfully.
1172 @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
1177 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1178 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1179 IN EFI_PEI_CPU_IO_PPI_WIDTH Width
,
1186 IO-based write services.
1188 This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI.
1189 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1190 return EFI_NOT_YET_AVAILABLE.
1192 @param PeiServices An indirect pointer to the PEI Services Table
1193 published by the PEI Foundation.
1194 @param This Pointer to local data for the interface.
1195 @param Width The width of the access. Enumerated in bytes.
1196 @param Address The physical address of the access.
1197 @param Count The number of accesses to perform.
1198 @param Buffer A pointer to the buffer of data.
1200 @retval EFI_SUCCESS The function completed successfully.
1201 @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
1206 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1207 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1208 IN EFI_PEI_CPU_IO_PPI_WIDTH Width
,
1215 8-bit I/O read operations.
1217 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1220 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1221 @param This Pointer to local data for the interface.
1222 @param Address The physical address of the access.
1224 @return An 8-bit value returned from the I/O space.
1229 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1230 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1235 Reads an 16-bit I/O port.
1237 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1240 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1241 @param This Pointer to local data for the interface.
1242 @param Address The physical address of the access.
1244 @return A 16-bit value returned from the I/O space.
1248 PeiDefaultIoRead16 (
1249 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1250 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1255 Reads an 32-bit I/O port.
1257 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1260 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1261 @param This Pointer to local data for the interface.
1262 @param Address The physical address of the access.
1264 @return A 32-bit value returned from the I/O space.
1268 PeiDefaultIoRead32 (
1269 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1270 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1275 Reads an 64-bit I/O port.
1277 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1280 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1281 @param This Pointer to local data for the interface.
1282 @param Address The physical address of the access.
1284 @return A 64-bit value returned from the I/O space.
1288 PeiDefaultIoRead64 (
1289 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1290 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1295 8-bit I/O write operations.
1297 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1298 @param This Pointer to local data for the interface.
1299 @param Address The physical address of the access.
1300 @param Data The data to write.
1304 PeiDefaultIoWrite8 (
1305 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1306 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1312 16-bit I/O write operations.
1314 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1315 @param This Pointer to local data for the interface.
1316 @param Address The physical address of the access.
1317 @param Data The data to write.
1321 PeiDefaultIoWrite16 (
1322 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1323 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1329 32-bit I/O write operations.
1331 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1332 @param This Pointer to local data for the interface.
1333 @param Address The physical address of the access.
1334 @param Data The data to write.
1338 PeiDefaultIoWrite32 (
1339 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1340 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1346 64-bit I/O write operations.
1348 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1349 @param This Pointer to local data for the interface.
1350 @param Address The physical address of the access.
1351 @param Data The data to write.
1355 PeiDefaultIoWrite64 (
1356 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1357 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1363 8-bit memory read operations.
1365 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1368 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1369 @param This Pointer to local data for the interface.
1370 @param Address The physical address of the access.
1372 @return An 8-bit value returned from the memory space.
1377 PeiDefaultMemRead8 (
1378 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1379 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1384 16-bit memory read operations.
1386 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1389 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1390 @param This Pointer to local data for the interface.
1391 @param Address The physical address of the access.
1393 @return An 16-bit value returned from the memory space.
1398 PeiDefaultMemRead16 (
1399 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1400 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1405 32-bit memory read operations.
1407 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1410 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1411 @param This Pointer to local data for the interface.
1412 @param Address The physical address of the access.
1414 @return An 32-bit value returned from the memory space.
1419 PeiDefaultMemRead32 (
1420 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1421 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1426 64-bit memory read operations.
1428 If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
1431 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1432 @param This Pointer to local data for the interface.
1433 @param Address The physical address of the access.
1435 @return An 64-bit value returned from the memory space.
1440 PeiDefaultMemRead64 (
1441 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1442 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1447 8-bit memory write operations.
1449 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1450 @param This Pointer to local data for the interface.
1451 @param Address The physical address of the access.
1452 @param Data The data to write.
1457 PeiDefaultMemWrite8 (
1458 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1459 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1465 16-bit memory write operations.
1467 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1468 @param This Pointer to local data for the interface.
1469 @param Address The physical address of the access.
1470 @param Data The data to write.
1475 PeiDefaultMemWrite16 (
1476 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1477 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1483 32-bit memory write operations.
1485 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1486 @param This Pointer to local data for the interface.
1487 @param Address The physical address of the access.
1488 @param Data The data to write.
1493 PeiDefaultMemWrite32 (
1494 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1495 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1501 64-bit memory write operations.
1503 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1504 @param This Pointer to local data for the interface.
1505 @param Address The physical address of the access.
1506 @param Data The data to write.
1511 PeiDefaultMemWrite64 (
1512 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1513 IN CONST EFI_PEI_CPU_IO_PPI
*This
,
1518 extern EFI_PEI_CPU_IO_PPI gPeiDefaultCpuIoPpi
;
1521 // Default EFI_PEI_PCI_CFG2_PPI support for EFI_PEI_SERVICES table when PeiCore initialization.
1525 Reads from a given location in the PCI configuration space.
1527 If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM, then
1528 return EFI_NOT_YET_AVAILABLE.
1530 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1531 @param This Pointer to local data for the interface.
1532 @param Width The width of the access. Enumerated in bytes.
1533 See EFI_PEI_PCI_CFG_PPI_WIDTH above.
1534 @param Address The physical address of the access. The format of
1535 the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
1536 @param Buffer A pointer to the buffer of data.
1538 @retval EFI_SUCCESS The function completed successfully.
1539 @retval EFI_INVALID_PARAMETER The invalid access width.
1540 @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
1545 PeiDefaultPciCfg2Read (
1546 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1547 IN CONST EFI_PEI_PCI_CFG2_PPI
*This
,
1548 IN EFI_PEI_PCI_CFG_PPI_WIDTH Width
,
1554 Write to a given location in the PCI configuration space.
1556 If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM, then
1557 return EFI_NOT_YET_AVAILABLE.
1559 @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
1560 @param This Pointer to local data for the interface.
1561 @param Width The width of the access. Enumerated in bytes.
1562 See EFI_PEI_PCI_CFG_PPI_WIDTH above.
1563 @param Address The physical address of the access. The format of
1564 the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
1565 @param Buffer A pointer to the buffer of data.
1567 @retval EFI_SUCCESS The function completed successfully.
1568 @retval EFI_INVALID_PARAMETER The invalid access width.
1569 @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
1573 PeiDefaultPciCfg2Write (
1574 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1575 IN CONST EFI_PEI_PCI_CFG2_PPI
*This
,
1576 IN EFI_PEI_PCI_CFG_PPI_WIDTH Width
,
1582 This function performs a read-modify-write operation on the contents from a given
1583 location in the PCI configuration space.
1585 @param PeiServices An indirect pointer to the PEI Services Table
1586 published by the PEI Foundation.
1587 @param This Pointer to local data for the interface.
1588 @param Width The width of the access. Enumerated in bytes. Type
1589 EFI_PEI_PCI_CFG_PPI_WIDTH is defined in Read().
1590 @param Address The physical address of the access.
1591 @param SetBits Points to value to bitwise-OR with the read configuration value.
1592 The size of the value is determined by Width.
1593 @param ClearBits Points to the value to negate and bitwise-AND with the read configuration value.
1594 The size of the value is determined by Width.
1596 @retval EFI_SUCCESS The function completed successfully.
1597 @retval EFI_INVALID_PARAMETER The invalid access width.
1598 @retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
1602 PeiDefaultPciCfg2Modify (
1603 IN CONST EFI_PEI_SERVICES
**PeiServices
,
1604 IN CONST EFI_PEI_PCI_CFG2_PPI
*This
,
1605 IN EFI_PEI_PCI_CFG_PPI_WIDTH Width
,
1611 extern EFI_PEI_PCI_CFG2_PPI gPeiDefaultPciCfg2Ppi
;
1614 After PeiCore image is shadowed into permanent memory, all build-in FvPpi should
1615 be re-installed with the instance in permanent memory and all cached FvPpi pointers in
1616 PrivateData->Fv[] array should be fixed up to be pointed to the one in permenant
1619 @param PrivateData Pointer to PEI_CORE_INSTANCE.
1623 IN PEI_CORE_INSTANCE
*PrivateData