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audk/MdePkg/Include/Pi/PiPeiCis.h

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/** @file
PI PEI master include file. This file should match the PI spec.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. 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
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@par Revision Reference:
Version 1.0.
**/
#ifndef __PI_PEICIS_H__
#define __PI_PEICIS_H__
#include <Pi/PiMultiPhase.h>
///
/// Handles of EFI FV.
///
typedef VOID *EFI_PEI_FV_HANDLE;
///
/// Handles of EFI FFS
///
typedef VOID *EFI_PEI_FILE_HANDLE;
///
/// Declare forward reference data structure for EFI_PEI_SERVICE
///
typedef struct _EFI_PEI_SERVICES EFI_PEI_SERVICES;
///
/// Declare forward reference data structure for EFI_PEI_NOTIFY_DESCRIPTOR
///
typedef struct _EFI_PEI_NOTIFY_DESCRIPTOR EFI_PEI_NOTIFY_DESCRIPTOR;
#include <Ppi/CpuIo.h>
#include <Ppi/PciCfg2.h>
/**
The PEI Dispatcher will invoke each PEIM one time. During this pass, the PEI
Dispatcher will pass control to the PEIM at the AddressOfEntryPoint in the PE Header.
@param FileHandle Pointer to the FFS file header.
@param PeiServices Describes the list of possible PEI Services.
@retval EFI_SUCCESS The PEI completed successfully.
@retval !EFI_SUCCESS There is error in PEIM.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEIM_ENTRY_POINT2)(
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
);
/**
Entry point of the notification callback function itself within the PEIM.
@param PeiServices Indirect reference to the PEI Services Table.
@param NotifyDescriptor Address of the notification descriptor data structure.
@param Ppi Address of the PPI that was installed.
@return Status of the notification.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEIM_NOTIFY_ENTRY_POINT)(
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
);
//
// PEI Ppi Services List Descriptors
//
#define EFI_PEI_PPI_DESCRIPTOR_PIC 0x00000001
#define EFI_PEI_PPI_DESCRIPTOR_PPI 0x00000010
#define EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK 0x00000020
#define EFI_PEI_PPI_DESCRIPTOR_NOTIFY_DISPATCH 0x00000040
#define EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES 0x00000060
#define EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST 0x80000000
///
/// The data structure through which a PEIM describes available services to the PEI Foundation.
///
typedef struct {
UINTN Flags;
EFI_GUID *Guid;
VOID *Ppi;
} EFI_PEI_PPI_DESCRIPTOR;
///
/// The data structure in a given PEIM that tells the PEI
/// Foundation where to invoke the notification service.
///
struct _EFI_PEI_NOTIFY_DESCRIPTOR {
UINTN Flags;
EFI_GUID *Guid;
EFI_PEIM_NOTIFY_ENTRY_POINT Notify;
};
///
/// Describes request of the module to be loaded to
/// the permanent memory once it is available. Unlike most of the other HOBs,
/// this HOB is produced and consumed during the HOB producer phase.
///
typedef struct _EFI_HOB_LOAD_PEIM {
EFI_HOB_GENERIC_HEADER Header;
EFI_PEI_FILE_HANDLE FileHandle;
EFI_PEIM_ENTRY_POINT2 EntryPoint;
EFI_PEIM_ENTRY_POINT2 InMemEntryPoint;
} EFI_HOB_LOAD_PEIM;
/**
This service is the first one provided by the PEI Foundation. This function
installs an interface in the PEI PPI database by GUID. The purpose of the
service is to publish an interface that other parties can use to call
additional PEIMs.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table
published by the PEI Foundation.
@param PpiList A pointer to the list of interfaces that the caller shall install.
@retval EFI_SUCCESS The interface was successfully installed.
@retval EFI_INVALID_PARAMETER The PpiList pointer is NULL or Any of the PEI PPI descriptors in the list do not have the EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_INSTALL_PPI)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList
);
/**
This function reinstalls an interface in the PEI PPI database by GUID.
The purpose of the service is to publish an interface that other parties
can use to replace a same-named interface in the protocol database
with a different interface.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table
published by the PEI Foundation.
@param OldPpi A pointer to the former PPI in the database.
@param NewPpi A pointer to the new interfaces that the caller shall install.
@retval EFI_SUCCESS The interface was successfully installed.
@retval EFI_INVALID_PARAMETER The PpiList pointer is NULL or Any of the PEI PPI descriptors in the
list do not have the EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
@retval EFI_NOT_FOUND The PPI for which the reinstallation was requested has not been installed.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_REINSTALL_PPI)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,
IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi
);
/**
This function locates an interface in the PEI PPI database by GUID.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES published by the PEI Foundation.
@param Guid A pointer to the GUID whose corresponding interface needs to be found.
@param Instance The N-th instance of the interface that is required.
@param PpiDescriptor A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.
@param Ppi A pointer to the instance of the interface.
@retval EFI_SUCCESS The interface was successfully returned.
@retval EFI_NOT_FOUND The PPI descriptor is not found in the database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_LOCATE_PPI)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_GUID *Guid,
IN UINTN Instance,
IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor OPTIONAL,
IN OUT VOID **Ppi
);
/**
This function installs a notification service to be called back when a
given interface is installed or reinstalled. The purpose of the service
is to publish an interface that other parties can use to call additional PPIs
that may materialize later.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
@param NotifyList A pointer to the list of notification interfaces that the caller shall install.
@retval EFI_SUCCESS The interface was successfully installed.
@retval EFI_INVALID_PARAMETER The PpiList pointer is NULL or Any of the PEI PPI descriptors in the
list do not have the EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_NOTIFY_PPI)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList
);
/**
This function returns 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.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_GET_BOOT_MODE)(
IN CONST EFI_PEI_SERVICES **PeiServices,
OUT EFI_BOOT_MODE *BootMode
);
/**
This function sets the value of the boot mode.
@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.
@retval EFI_SUCCESS The boot mode was returned successfully.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_SET_BOOT_MODE)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_BOOT_MODE BootMode
);
/**
This function returns the pointer to the list of Hand-Off Blocks (HOBs) in memory.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
@param HobList A pointer to the list of HOBs that the PEI Foundation will initialize
@retval EFI_SUCCESS The list was successfully returned.
@retval EFI_NOT_AVAILABLE_YET The HOB list is not yet published.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_GET_HOB_LIST)(
IN CONST EFI_PEI_SERVICES **PeiServices,
OUT VOID **HobList
);
/**
This service published by the PEI Foundation abstracts the creation of a Hand-Off Block's (HOB's) headers.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Type The type of HOB to be installed.
@param Length The length of the HOB to be added.
@param Hob The address of a pointer that will contain the HOB header.
@retval EFI_SUCCESS The HOB was successfully created.
@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_CREATE_HOB)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINT16 Type,
IN UINT16 Length,
IN OUT VOID **Hob
);
/**
The purpose of the service is to abstract the capability of the PEI
Foundation to discover instances of firmware volumes in the system.
This service enables PEIMs to discover additional firmware volumes. The PEI Foundation uses this
service to abstract the locations and formats of various firmware volumes. These volumes include
the Boot Firmware Volume and any other volumes exposed by EFI_PEI_FV_PPI. The service
returns a volume handle of type EFI_PEI_FV_HANDLE, which must be unique within the system.
@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 volumn handle or NULL if it does not exist.
@retval EFI_SUCCESS The volume was found.
@retval EFI_NOT_FOUND The volume was not found.
@retval EFI_INVALID_PARAMETER VolumeHandle is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_FIND_NEXT_VOLUME2)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINTN Instance,
OUT EFI_PEI_FV_HANDLE *VolumeHandle
);
/**
Searches for the next matching file in the firmware volume.
This service enables PEIMs to discover firmware files within a specified volume.
To find the first instance of a firmware file, pass a FileHandle value of NULL into the service.
The service returns a file handle of type EFI_PEI_FILE_HANDLE, which must be unique within
the system.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param SearchType A filter to find files only of this type.
@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_SUCCESS The file was found.
@retval EFI_NOT_FOUND The file was not found.
@retval EFI_NOT_FOUND The header checksum was not zero.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_FIND_NEXT_FILE2)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_FV_FILETYPE SearchType,
IN CONST EFI_PEI_FV_HANDLE FvHandle,
IN OUT EFI_PEI_FILE_HANDLE *FileHandle
);
/**
Searches for the next matching section within the specified file.
This service enables PEI modules to discover the first section of a given type within a valid file.
This service will search within encapsulation sections (compression and GUIDed) as well. It will
search inside of a GUIDed section or a compressed section, but may not, for example, search a
GUIDed section inside a GUIDes section.
This service will not search within compression sections or GUIDed sections which require
extraction if memory is not present.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param SectionType The value of the section type to find.
@param FileHandle Handle of the firmware file to search.
@param SectionData A pointer to the discovered section, if successful.
@retval EFI_SUCCESS The section was found.
@retval EFI_NOT_FOUND The section was not found.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_FIND_SECTION_DATA2)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_SECTION_TYPE SectionType,
IN EFI_PEI_FILE_HANDLE FileHandle,
OUT VOID **SectionData
);
/**
This function registers the found memory configuration with the PEI Foundation.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryBegin The value of a region of installed memory
@param MemoryLength The corresponding length of a region of installed memory.
@retval EFI_SUCCESS The region was successfully installed in a HOB.
@retval EFI_INVALID_PARAMETER MemoryBegin and MemoryLength are illegal for this system.
@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_INSTALL_PEI_MEMORY)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_PHYSICAL_ADDRESS MemoryBegin,
IN UINT64 MemoryLength
);
/**
The purpose of the service is to publish an interface that allows
PEIMs to allocate memory ranges that are managed by the PEI Foundation.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param MemoryType The type of memory to allocate.
@param Pages The number of contiguous 4 KB pages to allocate.
@param Memory Pointer to a physical address. On output, the address is set to the base
of the page range that was allocated.
@retval EFI_SUCCESS The memory range was successfully allocated.
@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.
@retval EFI_INVALID_PARAMETER Type is not equal to AllocateAnyPages.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_ALLOCATE_PAGES)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_MEMORY_TYPE MemoryType,
IN UINTN Pages,
OUT EFI_PHYSICAL_ADDRESS *Memory
);
/**
The purpose of this service is to publish an interface that
allows PEIMs to allocate memory ranges that are managed by the PEI Foundation.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Size The number of bytes to allocate from the pool.
@param Buffer If the call succeeds, a pointer to a pointer to the allocated buffer; undefined otherwise.
@retval EFI_SUCCESS The allocation was successful.
@retval EFI_OUT_OF_RESOURCES There is not enough heap to allocate the requested size.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_ALLOCATE_POOL)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN UINTN Size,
OUT VOID **Buffer
);
/**
This service copies the contents of one buffer to another buffer.
@param Destination Pointer to the destination buffer of the memory copy.
@param Source Pointer to the source buffer of the memory copy
@param Length Number of bytes to copy from Source to Destination.
**/
typedef
VOID
(EFIAPI *EFI_PEI_COPY_MEM)(
IN VOID *Destination,
IN VOID *Source,
IN UINTN Length
);
/**
The service fills a buffer with a specified value.
@param Buffer Pointer to the buffer to fill.
@param Size Number of bytes in Buffer to fill.
@param Value Value to fill Buffer with
**/
typedef
VOID
(EFIAPI *EFI_PEI_SET_MEM)(
IN VOID *Buffer,
IN UINTN Size,
IN UINT8 Value
);
/**
This service publishes an interface that allows PEIMs to report status codes.
ReportStatusCode() is called by PEIMs that wish to report status information on their
progress. The principal use model is for a PEIM to emit one of the standard 32-bit error codes. This
will allow a platform owner to ascertain the state of the system, especially under conditions where
the full consoles might not have been installed.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.
@param Type Indicates the type of status code being reported.
@param Value Describes the current status of a hardware or
software entity. This includes information about the class and
subclass that is used to classify the entity as well as an operation.
For progress codes, the operation is the current activity.
For error codes, it is the exception.For debug codes,it is not defined at this time.
@param Instance The enumeration of a hardware or software entity within
the system. A system may contain multiple entities that match a class/subclass
pairing. The instance differentiates between them. An instance of 0 indicates
that instance information is unavailable, not meaningful, or not relevant.
Valid instance numbers start with 1.
@param CallerId This optional parameter may be used to identify the caller.
This parameter allows the status code driver to apply different rules to
different callers.
@param Data This optional parameter may be used to pass additional data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_AVAILABLE_YET No progress code provider has installed an interface in the system.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_REPORT_STATUS_CODE)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN EFI_STATUS_CODE_TYPE Type,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN CONST EFI_GUID *CallerId OPTIONAL,
IN CONST EFI_STATUS_CODE_DATA *Data OPTIONAL
);
/**
Resets the entire platform.
This service resets the entire platform, including all processors
and devices, and reboots the system.
This service will never return EFI_SUCCESS.
@param PeiServices An indirect pointer to the EFI_PEI_SERVICES
table published by the PEI Foundation.
@retval EFI_NOT_AVAILABLE_YET The service has not been installed yet.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_RESET_SYSTEM)(
IN CONST EFI_PEI_SERVICES **PeiServices
);
/**
Find a file within a volume by its name.
This service searches for files with a specific name, within
either the specified firmware volume or all firmware volumes.
The service returns a file handle of type EFI_PEI_FILE_HANDLE,
which must be unique within the system.
@param FileName A pointer to the name of the file to
find within the firmware volume.
@param VolumeHandle The firmware volume to search.
@param FileHandle Upon exit, points to the found file's
handle or NULL if it could not be found.
@retval EFI_SUCCESS File was found.
@retval EFI_NOT_FOUND File was not found.
@retval EFI_INVALID_PARAMETER VolumeHandle or FileHandle or
FileName was NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_FIND_BY_NAME)(
IN CONST EFI_GUID *FileName,
IN EFI_PEI_FV_HANDLE VolumeHandle,
OUT EFI_PEI_FILE_HANDLE *FileHandle
);
///
/// Information of FV file.
///
typedef struct {
///
/// Name of the file.
///
EFI_GUID FileName;
///
/// File type.
///
EFI_FV_FILETYPE FileType;
///
/// Attributes of the file.
///
EFI_FV_FILE_ATTRIBUTES FileAttributes;
///
/// Points to the file's data (not the header).
/// Not valid if EFI_FV_FILE_ATTRIB_MEMORY_MAPPED
/// is zero.
///
VOID *Buffer;
///
/// Size of the file<6C>s data.
///
UINT32 BufferSize;
} EFI_FV_FILE_INFO;
/**
Returns information about a specific file.
This function returns information about a specific file,
including its file name, type, attributes, starting address and
size. If the firmware volume is not memory mapped then the
Buffer member will be NULL.
@param FileHandle Handle of the file.
@param FileInfo Upon exit, points to the file's
information.
@retval EFI_SUCCESS File information returned.
@retval EFI_INVALID_PARAMETER If FileHandle does not
represent a valid file.
@retval EFI_INVALID_PARAMETER If FileInfo is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_GET_FILE_INFO)(
IN EFI_PEI_FILE_HANDLE FileHandle,
OUT EFI_FV_FILE_INFO *FileInfo
);
///
/// Information of FV volume.
///
typedef struct {
///
/// Attributes of the firmware volume.
///
EFI_FVB_ATTRIBUTES_2 FvAttributes;
///
/// Format of the firmware volume.
///
EFI_GUID FvFormat;
///
/// Name of the firmware volume.
///
EFI_GUID FvName;
///
/// Points to the first byte of the firmware
/// volume, if bit EFI_FVB_MEMORY_MAPPED is
/// set in FvAttributes.
///
VOID *FvStart;
///
/// Size of the firmware volume.
///
UINT64 FvSize;
} EFI_FV_INFO;
/**
Returns information about the specified volume.
This function returns information about a specific firmware
volume, including its name, type, attributes, starting address
and size.
@param VolumeHandle Handle of the volume.
@param VolumeInfo Upon exit, points to the volume's
information.
@retval EFI_SUCCESS File information returned.
@retval EFI_INVALID_PARAMETER If FileHandle does not
represent a valid file.
@retval EFI_INVALID_PARAMETER If FileInfo is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_FFS_GET_VOLUME_INFO)(
IN EFI_PEI_FV_HANDLE VolumeHandle,
OUT EFI_FV_INFO *VolumeInfo
);
/**
Register a PEIM so that it will be shadowed and called again.
This service registers a file handle so that after memory is
available, the PEIM will be re-loaded into permanent memory and
re-initialized. The PEIM registered this way will always be
initialized twice. The first time, this function call will
return EFI_SUCCESS. The second time, this function call will
return EFI_ALREADY_STARTED. Depending on the order in which
PEIMs are dispatched, the PEIM making this call may be
initialized after permanent memory is installed, even the first
time.
@param FileHandle PEIM's file handle. Must be the currently
executing PEIM.
@retval EFI_SUCCESS The PEIM was successfully registered for
shadowing.
@retval EFI_ALREADY_STARTED The PEIM was previously
registered for shadowing.
@retval EFI_NOT_FOUND The FileHandle does not refer to a
valid file handle.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_REGISTER_FOR_SHADOW)(
IN EFI_PEI_FILE_HANDLE FileHandle
);
//
// PEI Specification Revision information
//
#define PEI_SPECIFICATION_MAJOR_REVISION 1
#define PEI_SPECIFICATION_MINOR_REVISION 0
//
// PEI Services Table
//
#define PEI_SERVICES_SIGNATURE 0x5652455320494550ULL
#define PEI_SERVICES_REVISION ((PEI_SPECIFICATION_MAJOR_REVISION<<16) | (PEI_SPECIFICATION_MINOR_REVISION))
///
/// EFI_PEI_SERVICES is a collection of functions whose implementation is provided by the PEI
/// Foundation. These services fall into various classes, including the following:
/// - Managing the boot mode
/// - Allocating both early and permanent memory
/// - Supporting the Firmware File System (FFS)
/// - Abstracting the PPI database abstraction
/// - Creating Hand-Off Blocks (HOBs)
///
struct _EFI_PEI_SERVICES {
///
/// The table header for the PEI Services Table.
///
EFI_TABLE_HEADER Hdr;
///
/// Installs an interface in the PEI PEIM-to-PEIM
/// Interface (PPI) database by GUID.
///
EFI_PEI_INSTALL_PPI InstallPpi;
///
/// Reinstalls an interface in the PEI PPI database by GUID.
///
EFI_PEI_REINSTALL_PPI ReInstallPpi;
///
/// Locates an interface in the PEI PPI database by GUID.
///
EFI_PEI_LOCATE_PPI LocatePpi;
///
/// Installs the notification service to be called back
/// upon the installation or reinstallation of a given interface.
///
EFI_PEI_NOTIFY_PPI NotifyPpi;
///
/// Returns the present value of the boot mode.
///
EFI_PEI_GET_BOOT_MODE GetBootMode;
///
/// Sets the value of the boot mode.
///
EFI_PEI_SET_BOOT_MODE SetBootMode;
///
/// Returns the pointer to the list of Hand-Off Blocks (HOBs) in memory.
///
EFI_PEI_GET_HOB_LIST GetHobList;
///
/// Abstracts the creation of HOB headers.
///
EFI_PEI_CREATE_HOB CreateHob;
///
/// Discovers instances of firmware volumes in the system.
///
EFI_PEI_FFS_FIND_NEXT_VOLUME2 FfsFindNextVolume;
///
/// Discovers instances of firmware files in the system.
///
EFI_PEI_FFS_FIND_NEXT_FILE2 FfsFindNextFile;
///
/// Searches for a section in a firmware file.
///
EFI_PEI_FFS_FIND_SECTION_DATA2 FfsFindSectionData;
///
/// Registers the found memory configuration with the PEI Foundation.
///
EFI_PEI_INSTALL_PEI_MEMORY InstallPeiMemory;
///
/// Allocates memory ranges that are managed by the PEI Foundation.
///
EFI_PEI_ALLOCATE_PAGES AllocatePages;
///
/// Allocate memory ranges that are managed by the PEI Foundation.
///
EFI_PEI_ALLOCATE_POOL AllocatePool;
///
/// Copies the contents of one buffer to another buffer.
///
EFI_PEI_COPY_MEM CopyMem;
///
/// Fills a buffer with a specified value.
///
EFI_PEI_SET_MEM SetMem;
///
/// Provides an interface that a PEIM can call to report a status code.
///
EFI_PEI_REPORT_STATUS_CODE ReportStatusCode;
///
/// Resets the entire platform.
///
EFI_PEI_RESET_SYSTEM ResetSystem;
///
/// Provides an interface that a PEIM can call to execute
/// an I/O transaction. This interface is installed by provider
/// PEIM by copying the interface into the PEI Service table.
///
EFI_PEI_CPU_IO_PPI *CpuIo;
///
/// Provides an interface that a PEIM can call to execute PCI
/// Configuration transactions. This interface is installed by
/// provider PEIM by copying the interface into the EFI_PEI_SERVICES table.
///
EFI_PEI_PCI_CFG2_PPI *PciCfg;
///
/// Discovers firmware files within a volume by name.
///
EFI_PEI_FFS_FIND_BY_NAME FfsFindFileByName;
///
/// Return information about a particular file.
///
EFI_PEI_FFS_GET_FILE_INFO FfsGetFileInfo;
///
/// Return information about a particular volume.
///
EFI_PEI_FFS_GET_VOLUME_INFO FfsGetVolumeInfo;
///
/// Register a driver to be re-loaded when memory is available.
///
EFI_PEI_REGISTER_FOR_SHADOW RegisterForShadow;
};
///
/// EFI_SEC_PEI_HAND_OFF structure hold information about
/// PEI core's operating environment, such as the size of location of
/// temporary RAM, the stack location and BFV location.
///
typedef struct _EFI_SEC_PEI_HAND_OFF {
///
/// Size of the data structure.
///
UINT16 DataSize;
///
/// Points to the first byte of the boot firmware volume,
/// which the PEI Dispatcher should search for
/// PEI modules.
///
VOID *BootFirmwareVolumeBase;
///
/// Size of the boot firmware volume, in bytes.
///
UINTN BootFirmwareVolumeSize;
///
/// Points to the first byte of the temporary RAM.
///
VOID *TemporaryRamBase;
///
/// Size of the temporary RAM, in bytes.
///
UINTN TemporaryRamSize;
///
/// Points to the first byte of the temporary RAM
/// available for use by the PEI Foundation. The area
/// described by PeiTemporaryRamBase and PeiTemporaryRamSize
/// must not extend outside beyond the area described by
/// TemporaryRamBase & TemporaryRamSize. This area should not
/// overlap with the area reported by StackBase and
/// StackSize.
///
VOID *PeiTemporaryRamBase;
///
/// Size of the available temporary RAM available for
/// use by the PEI Foundation, in bytes.
///
UINTN PeiTemporaryRamSize;
///
/// Points to the first byte of the stack.
/// This are may be part of the memory described by
/// TemporaryRamBase and TemporaryRamSize
/// or may be an entirely separate area.
///
VOID *StackBase;
///
/// Size of the stack, in bytes.
///
UINTN StackSize;
} EFI_SEC_PEI_HAND_OFF;
/**
Entry point of PEI Foundation.
This function is the entry point for the PEI Foundation, which
allows the SEC phase to pass information about the stack,
temporary RAM and the Boot Firmware Volume. In addition, it also
allows the SEC phase to pass services and data forward for use
during the PEI phase in the form of one or more PPIs. There is
no limit to the number of additional PPIs that can be passed
from SEC into the PEI Foundation. 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 calls and/or code in these
early PPIs.
@param SecCoreData Points to a data structure containing
information about the PEI core's
operating environment, 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 calls
and/or code in these early PPIs.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CORE_ENTRY_POINT)(
IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,
IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList
);
#endif
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