PeiMain.h revision 4fd606d1f5abe38e1f42c38de1d2e895166bd0f4
/** @file
Definition of Pei Core Structures and Services
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _PEI_MAIN_H_
#define _PEI_MAIN_H_
#include <PiPei.h>
#include <Ppi/MemoryDiscovered.h>
#include <Ppi/StatusCode.h>
#include <Ppi/FirmwareVolume.h>
#include <Ppi/FirmwareVolumeInfo.h>
#include <Ppi/Decompress.h>
#include <Ppi/GuidedSectionExtraction.h>
#include <Ppi/LoadFile.h>
#include <Ppi/Security2.h>
#include <Ppi/TemporaryRamSupport.h>
#include <Library/DebugLib.h>
#include <Library/PeiCoreEntryPoint.h>
#include <Library/PerformanceLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/PeCoffLib.h>
#include <Library/PeCoffGetEntryPointLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <IndustryStandard/PeImage.h>
#include <Library/PeiServicesTablePointerLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Guid/FirmwareFileSystem2.h>
#include <Guid/FirmwareFileSystem3.h>
#include <Guid/AprioriFileName.h>
///
/// It is an FFS type extension used for PeiFindFileEx. It indicates current
/// Ffs searching is for all PEIMs can be dispatched by PeiCore.
///
#define PEI_CORE_INTERNAL_FFS_FILE_DISPATCH_TYPE 0xff
///
/// Pei Core private data structures
///
typedef union {
///
/// PPI database structure which contains two link: PpiList and NotifyList. PpiList
/// is in head of PpiListPtrs array and notify is in end of PpiListPtrs.
///
typedef struct {
///
/// index of end of PpiList link list.
///
///
/// index of end of notify link list.
///
///
/// index of the dispatched notify list.
///
///
/// index of last installed Ppi description in PpiList link list.
///
///
/// index of last dispatched notify in Notify link list.
///
///
/// Ppi database.
///
//
// PEI_CORE_FV_HANDE.PeimState
// Do not change these values as there is code doing math to change states.
// Look for Private->Fv[FvCount].PeimState[PeimCount]++;
//
#define PEIM_STATE_NOT_DISPATCHED 0x00
#define PEIM_STATE_DISPATCHED 0x01
#define PEIM_STATE_REGISITER_FOR_SHADOW 0x02
#define PEIM_STATE_DONE 0x03
typedef struct {
typedef struct {
#define CACHE_SETION_MAX_NUMBER 0x10
typedef struct {
///
/// Forward declaration for PEI_CORE_INSTANCE
///
typedef struct _PEI_CORE_INSTANCE PEI_CORE_INSTANCE;
/**
Function Pointer type for PeiCore function.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@param PpiList Points to a list of one or more PPI descriptors to be installed initially by the PEI core.
An empty PPI list consists of a single descriptor with the end-tag
EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. As part of its initialization
phase, the PEI Foundation will add these SEC-hosted PPIs to its PPI database such
that both the PEI Foundation and any modules can leverage the associated service
@param OldCoreData Pointer to old core data that is used to initialize the
core's data areas.
**/
typedef
);
///
/// Pei Core private data structure instance
///
struct _PEI_CORE_INSTANCE {
///
/// Point to ServiceTableShadow
///
///
/// The count of FVs which contains FFS and could be dispatched by PeiCore.
///
///
/// The instance arrary for FVs which contains FFS and could be dispatched by PeiCore.
///
//
// For Loading modules at fixed address feature to cache the top address below which the
// Runtime code, boot time code and PEI memory will be placed. Please note that the offset between this field
// and Ps should not be changed since maybe user could get this top address by using the offet to Ps.
//
//
// The field is define for Loading modules at fixed address feature to tracker the PEI code
// memory range usage. It is a bit mapped array in which every bit indicates the correspoding memory page
// available or not.
//
//
// This field points to the shadowed image read function
//
};
///
/// Pei Core Instance Data Macros
///
#define PEI_CORE_INSTANCE_FROM_PS_THIS(a) \
///
/// Union of temporarily used function pointers (to save stack space)
///
typedef union {
typedef struct {
//
// PeiCore function
//
/**
The entry routine to Pei Core, invoked by PeiMain during transition
from SEC to PEI. After switching stack in the PEI core, it will restart
with the old core data.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@param PpiList Points to a list of one or more PPI descriptors to be installed initially by the PEI core.
An empty PPI list consists of a single descriptor with the end-tag
EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. As part of its initialization
phase, the PEI Foundation will add these SEC-hosted PPIs to its PPI database such
that both the PEI Foundation and any modules can leverage the associated service
@param Data Pointer to old core data that is used to initialize the
core's data areas.
**/
PeiCore (
);
//
// Dispatcher support functions
//
/**
This is the POSTFIX version of the dependency evaluator. When a
PUSH [PPI GUID] is encountered, a pointer to the GUID is stored on
the evaluation stack. When that entry is poped from the evaluation
stack, the PPI is checked if it is installed. This method allows
some time savings as not all PPIs must be checked for certain
operation types (AND, OR).
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param DependencyExpression Pointer to a dependency expression. The Grammar adheres to
the BNF described above and is stored in postfix notation.
@retval TRUE if it is a well-formed Grammar
@retval FALSE if the dependency expression overflows the evaluation stack
if the dependency expression underflows the evaluation stack
if the dependency expression is not a well-formed Grammar.
**/
);
/**
Conduct PEIM dispatch.
@param SecCoreData Pointer to the data structure containing SEC to PEI handoff data
@param PrivateData Pointer to the private data passed in from caller
**/
);
/**
Initialize the Dispatcher's data members
@param PrivateData PeiCore's private data structure
@param OldCoreData Old data from SecCore
NULL if being run in non-permament memory mode.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
**/
);
/**
This routine parses the Dependency Expression, if available, and
decides if the module can be executed.
@param Private PeiCore's private data structure
@param FileHandle PEIM's file handle
@param PeimCount The index of last dispatched PEIM.
@retval TRUE Can be dispatched
@retval FALSE Cannot be dispatched
**/
);
//
// PPI support functions
//
/**
Initialize PPI services.
@param PrivateData Pointer to the PEI Core data.
@param OldCoreData Pointer to old PEI Core data.
NULL if being run in non-permament memory mode.
**/
);
/**
Migrate the Hob list from the temporary memory stack to PEI installed memory.
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@param PrivateData Pointer to PeiCore's private data structure.
**/
);
/**
Install PPI services. It is implementation of EFI_PEI_SERVICE.InstallPpi.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param PpiList Pointer to ppi array that want to be installed.
@retval EFI_SUCCESS if all PPIs in PpiList are successfully installed.
@retval EFI_INVALID_PARAMETER if PpiList is NULL pointer
if any PPI in PpiList is not valid
@retval EFI_OUT_OF_RESOURCES if there is no more memory resource to install PPI
**/
);
/**
Re-Install PPI services.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param OldPpi Pointer to the old PEI PPI Descriptors.
@param NewPpi Pointer to the new PEI PPI Descriptors.
@retval EFI_SUCCESS if the operation was successful
@retval EFI_INVALID_PARAMETER if OldPpi or NewPpi is NULL
if NewPpi is not valid
@retval EFI_NOT_FOUND if the PPI was not in the database
**/
);
/**
Locate a given named PPI.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Guid Pointer to GUID of the PPI.
@param Instance Instance Number to discover.
@param PpiDescriptor Pointer to reference the found descriptor. If not NULL,
returns a pointer to the descriptor (includes flags, etc)
@param Ppi Pointer to reference the found PPI
@retval EFI_SUCCESS if the PPI is in the database
@retval EFI_NOT_FOUND if the PPI is not in the database
**/
);
/**
Install a notification for a given PPI.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param NotifyList Pointer to list of Descriptors to notify upon.
@retval EFI_SUCCESS if successful
@retval EFI_OUT_OF_RESOURCES if no space in the database
@retval EFI_INVALID_PARAMETER if not a good decriptor
**/
);
/**
Process the Notify List at dispatch level.
@param PrivateData PeiCore's private data structure.
**/
);
/**
Dispatch notifications.
@param PrivateData PeiCore's private data structure
@param NotifyType Type of notify to fire.
@param InstallStartIndex Install Beginning index.
@param InstallStopIndex Install Ending index.
@param NotifyStartIndex Notify Beginning index.
@param NotifyStopIndex Notify Ending index.
**/
);
//
// Boot mode support functions
//
/**
This service enables PEIMs to ascertain the present value of the boot mode.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param BootMode A pointer to contain the value of the boot mode.
@retval EFI_SUCCESS The boot mode was returned successfully.
@retval EFI_INVALID_PARAMETER BootMode is NULL.
**/
);
/**
This service enables PEIMs to update the boot mode variable.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param BootMode The value of the boot mode to set.
@return EFI_SUCCESS The value was successfully updated
**/
);
//
// Security support functions
//
/**
Initialize the security services.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param OldCoreData Pointer to the old core data.
NULL if being run in non-permament memory mode.
**/
);
/**
Verify a Firmware volume.
@param CurrentFvAddress Pointer to the current Firmware Volume under consideration
@retval EFI_SUCCESS Firmware Volume is legal
@retval EFI_SECURITY_VIOLATION Firmware Volume fails integrity test
**/
VerifyFv (
);
/**
Provide a callout to the security verification service.
@param PrivateData PeiCore's private data structure
@param VolumeHandle Handle of FV
@param FileHandle Handle of PEIM's ffs
@retval EFI_SUCCESS Image is OK
@retval EFI_SECURITY_VIOLATION Image is illegal
**/
);
/**
Gets the pointer to the HOB List.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param HobList Pointer to the HOB List.
@retval EFI_SUCCESS Get the pointer of HOB List
@retval EFI_NOT_AVAILABLE_YET the HOB List is not yet published
@retval EFI_INVALID_PARAMETER HobList is NULL (in debug mode)
**/
);
/**
Add a new HOB to the HOB List.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Type Type of the new HOB.
@param Length Length of the new HOB to allocate.
@param Hob Pointer to the new HOB.
@return EFI_SUCCESS Success to create hob.
@retval EFI_INVALID_PARAMETER if Hob is NULL
@retval EFI_NOT_AVAILABLE_YET if HobList is still not available.
@retval EFI_OUT_OF_RESOURCES if there is no more memory to grow the Hoblist.
**/
);
/**
Builds a Handoff Information Table HOB
@param BootMode - Current Bootmode
@param MemoryBegin - Start Memory Address.
@param MemoryLength - Length of Memory.
@return EFI_SUCCESS Always success to initialize HOB.
**/
);
//
// FFS Fw Volume support functions
//
/**
Searches for the next matching file in the firmware volume.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param SearchType Filter to find only files of this type.
Type EFI_FV_FILETYPE_ALL causes no filtering to be done.
@param FvHandle Handle of firmware volume in which to search.
@param FileHandle On entry, points to the current handle from which to begin searching or NULL to start
at the beginning of the firmware volume. On exit, points the file handle of the next file
in the volume or NULL if there are no more files.
@retval EFI_NOT_FOUND The file was not found.
@retval EFI_NOT_FOUND The header checksum was not zero.
@retval EFI_SUCCESS The file was found.
**/
);
/**
Searches for the next matching section within the specified file.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
@param SectionType Filter to find only sections of this type.
@param FileHandle Pointer to the current file to search.
@param SectionData A pointer to the discovered section, if successful.
NULL if section not found
@retval EFI_NOT_FOUND The section was not found.
@retval EFI_SUCCESS The section was found.
**/
);
/**
Search the firmware volumes by index
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
@param Instance This instance of the firmware volume to find. The value 0 is the Boot Firmware
Volume (BFV).
@param VolumeHandle On exit, points to the next volume handle or NULL if it does not exist.
@retval EFI_INVALID_PARAMETER VolumeHandle is NULL
@retval EFI_NOT_FOUND The volume was not found.
@retval EFI_SUCCESS The volume was found.
**/
);
//
// Memory support functions
//
/**
Initialize the memory services.
@param PrivateData PeiCore's private data structure
@param SecCoreData Points to a data structure containing SEC to PEI handoff data, such as the size
and location of temporary RAM, the stack location and the BFV location.
@param OldCoreData Pointer to the PEI Core data.
NULL if being run in non-permament memory mode.
**/
);
/**
Install the permanent memory is now available.
Creates HOB (PHIT and Stack).
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryBegin Start of memory address.
@param MemoryLength Length of memory.
@return EFI_SUCCESS Always success.
**/
);
/**
Memory allocation service on permanent memory,
not usable prior to the memory installation.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryType Type of memory to allocate.
@param Pages Number of pages to allocate.
@param Memory Pointer of memory allocated.
@retval EFI_SUCCESS The allocation was successful
@retval EFI_INVALID_PARAMETER Only AllocateAnyAddress is supported.
@retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available
@retval EFI_OUT_OF_RESOURCES There is not enough HOB heap to satisfy the requirement
to allocate the number of pages.
**/
);
/**
Memory allocation service on the temporary memory.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Size Amount of memory required
@param Buffer Address of pointer to the buffer
@retval EFI_SUCCESS The allocation was successful
@retval EFI_OUT_OF_RESOURCES There is not enough heap to satisfy the requirement
to allocate the requested size.
**/
);
/**
Routine for load image file.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param FileHandle Pointer to the FFS file header of the image.
@param PeimState The dispatch state of the input PEIM handle.
@param EntryPoint Pointer to entry point of specified image file for output.
@param AuthenticationState Pointer to attestation authentication state of image.
@retval EFI_SUCCESS Image is successfully loaded.
@retval EFI_NOT_FOUND Fail to locate necessary PPI
@retval Others Fail to load file.
**/
);
/**
Core version of the Status Code reporter
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param CodeType Type of Status Code.
@param Value Value to output for Status Code.
@param Instance Instance Number of this status code.
@param CallerId ID of the caller of this status code.
@param Data Optional data associated with this status code.
@retval EFI_SUCCESS if status code is successfully reported
@retval EFI_NOT_AVAILABLE_YET if StatusCodePpi has not been installed
**/
);
/**
Core version of the Reset System
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@retval EFI_NOT_AVAILABLE_YET PPI not available yet.
@retval EFI_DEVICE_ERROR Did not reset system.
Otherwise, resets the system.
**/
);
/**
Initialize PeiCore Fv List.
@param PrivateData - Pointer to PEI_CORE_INSTANCE.
@param SecCoreData - Pointer to EFI_SEC_PEI_HAND_OFF.
**/
);
/**
Process Firmware Volum Information once FvInfoPPI install.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param NotifyDescriptor Address of the notification descriptor data structure.
@param Ppi Address of the PPI that was installed.
@retval EFI_SUCCESS if the interface could be successfully installed
**/
);
/**
Given the input VolumeHandle, search for the next matching name file.
@param FileName File name to search.
@param VolumeHandle The current FV to search.
@param FileHandle Pointer to the file matching name in VolumeHandle.
NULL if file not found
@retval EFI_NOT_FOUND No files matching the search criteria were found
@retval EFI_SUCCESS Success to search given file
**/
);
/**
Returns information about a specific file.
@param FileHandle Handle of the file.
@param FileInfo Upon exit, points to the file's information.
@retval EFI_INVALID_PARAMETER If FileInfo is NULL.
@retval EFI_INVALID_PARAMETER If FileHandle does not represent a valid file.
@retval EFI_SUCCESS File information returned.
**/
);
/**
Returns information about the specified volume.
@param VolumeHandle Handle of the volume.
@param VolumeInfo Upon exit, points to the volume's information.
@retval EFI_INVALID_PARAMETER If VolumeHandle does not represent a valid volume.
@retval EFI_INVALID_PARAMETER If VolumeInfo is NULL.
@retval EFI_SUCCESS Volume information returned.
**/
);
/**
This routine enable a PEIM to register itself to shadow when PEI Foundation
discovery permanent memory.
@param FileHandle File handle of a PEIM.
@retval EFI_NOT_FOUND The file handle doesn't point to PEIM itself.
@retval EFI_ALREADY_STARTED Indicate that the PEIM has been registered itself.
@retval EFI_SUCCESS Successfully to register itself.
**/
);
/**
Initialize image service that install PeiLoadFilePpi.
@param PrivateData Pointer to PeiCore's private data structure PEI_CORE_INSTANCE.
@param OldCoreData Pointer to Old PeiCore's private data.
to permenent memory.
**/
);
/**
The wrapper function of PeiLoadImageLoadImage().
@param This Pointer to EFI_PEI_LOAD_FILE_PPI.
@param FileHandle Pointer to the FFS file header of the image.
@param EntryPoint Pointer to entry point of specified image file for output.
@param AuthenticationState Pointer to attestation authentication state of image.
@return Status of PeiLoadImageLoadImage().
**/
);
/**
Provide a callback for when the security PPI is installed.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param NotifyDescriptor The descriptor for the notification event.
@param Ppi Pointer to the PPI in question.
@return Always success
**/
);
/**
Get Fv image from the FV type file, then install FV INFO ppi, Build FV hob.
@param ParentFvCoreHandle Pointer of EFI_CORE_FV_HANDLE to parent Fv image that contain this Fv image.
@param ParentFvFileHandle File handle of a Fv type file that contain this Fv image.
@retval EFI_NOT_FOUND FV image can't be found.
@retval EFI_SUCCESS Successfully to process it.
@retval EFI_OUT_OF_RESOURCES Can not allocate page when aligning FV image
@retval Others Can not find EFI_SECTION_FIRMWARE_VOLUME_IMAGE section
**/
);
/**
Get instance of PEI_CORE_FV_HANDLE for next volume according to given index.
This routine also will install FvInfo ppi for FV hob in PI ways.
@param Private Pointer of PEI_CORE_INSTANCE
@param Instance The index of FV want to be searched.
@return Instance of PEI_CORE_FV_HANDLE.
**/
);
//
// Default EFI_PEI_CPU_IO_PPI support for EFI_PEI_SERVICES table when PeiCore initialization.
//
/**
Memory-based read services.
This function is to perform the Memory Access Read service based on installed
instance of the EFI_PEI_CPU_IO_PPI.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
@param Address The physical address of the access.
@param Count The number of accesses to perform.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
);
/**
Memory-based write services.
This function is to perform the Memory Access Write service based on installed
instance of the EFI_PEI_CPU_IO_PPI.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
@param Address The physical address of the access.
@param Count The number of accesses to perform.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
);
/**
IO-based read services.
This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
@param Address The physical address of the access.
@param Count The number of accesses to perform.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
);
/**
IO-based write services.
This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
@param Address The physical address of the access.
@param Count The number of accesses to perform.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
);
/**
8-bit I/O read operations.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return An 8-bit value returned from the I/O space.
**/
);
/**
Reads an 16-bit I/O port.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return A 16-bit value returned from the I/O space.
**/
);
/**
Reads an 32-bit I/O port.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return A 32-bit value returned from the I/O space.
**/
);
/**
Reads an 64-bit I/O port.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return A 64-bit value returned from the I/O space.
**/
);
/**
8-bit I/O write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
16-bit I/O write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
32-bit I/O write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
64-bit I/O write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
8-bit memory read operations.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return An 8-bit value returned from the memory space.
**/
);
/**
16-bit memory read operations.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return An 16-bit value returned from the memory space.
**/
);
/**
32-bit memory read operations.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return An 32-bit value returned from the memory space.
**/
);
/**
64-bit memory read operations.
return 0.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@return An 64-bit value returned from the memory space.
**/
);
/**
8-bit memory write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
16-bit memory write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
32-bit memory write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
/**
64-bit memory write operations.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Address The physical address of the access.
@param Data The data to write.
**/
);
//
// Default EFI_PEI_PCI_CFG2_PPI support for EFI_PEI_SERVICES table when PeiCore initialization.
//
/**
Reads from a given location in the PCI configuration space.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
See EFI_PEI_PCI_CFG_PPI_WIDTH above.
@param Address The physical address of the access. The format of
the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER The invalid access width.
@retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
**/
);
/**
Write to a given location in the PCI configuration space.
return EFI_NOT_YET_AVAILABLE.
@param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes.
See EFI_PEI_PCI_CFG_PPI_WIDTH above.
@param Address The physical address of the access. The format of
the address is described by EFI_PEI_PCI_CFG_PPI_PCI_ADDRESS.
@param Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER The invalid access width.
@retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
**/
);
/**
This function performs a read-modify-write operation on the contents from a given
location in the PCI configuration space.
@param PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param This Pointer to local data for the interface.
@param Width The width of the access. Enumerated in bytes. Type
EFI_PEI_PCI_CFG_PPI_WIDTH is defined in Read().
@param Address The physical address of the access.
@param SetBits Points to value to bitwise-OR with the read configuration value.
The size of the value is determined by Width.
@param ClearBits Points to the value to negate and bitwise-AND with the read configuration value.
The size of the value is determined by Width.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_INVALID_PARAMETER The invalid access width.
@retval EFI_NOT_YET_AVAILABLE If the EFI_PEI_PCI_CFG2_PPI is not installed by platform/chipset PEIM.
**/
);
/**
After PeiCore image is shadowed into permanent memory, all build-in FvPpi should
be re-installed with the instance in permanent memory and all cached FvPpi pointers in
PrivateData->Fv[] array should be fixed up to be pointed to the one in permenant
memory.
@param PrivateData Pointer to PEI_CORE_INSTANCE.
**/
);
#endif