mirror of https://github.com/acidanthera/audk.git
402 lines
14 KiB
C
402 lines
14 KiB
C
/** @file
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Header file for PEI Services Library.
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Copyright (c) 2006 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef __PEI_SERVICES_LIB_H__
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#define __PEI_SERVICES_LIB_H__
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/**
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This service enables a given PEIM to register an interface into the PEI Foundation.
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@param PpiList A pointer to the list of interfaces that the caller shall install.
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@retval EFI_SUCCESS The interface was successfully installed.
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@retval EFI_INVALID_PARAMETER The PpiList pointer is NULL.
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@retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the
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EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
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@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesInstallPpi (
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IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList
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);
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/**
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This service enables PEIMs to replace an entry in the PPI database with an alternate entry.
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@param OldPpi Pointer to the old PEI PPI Descriptors.
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@param NewPpi Pointer to the new PEI PPI Descriptors.
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@retval EFI_SUCCESS The interface was successfully installed.
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@retval EFI_INVALID_PARAMETER The OldPpi or NewPpi is NULL.
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@retval EFI_INVALID_PARAMETER Any of the PEI PPI descriptors in the list do not have the
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EFI_PEI_PPI_DESCRIPTOR_PPI bit set in the Flags field.
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@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
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@retval EFI_NOT_FOUND The PPI for which the reinstallation was requested has not been
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installed.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesReInstallPpi (
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IN CONST EFI_PEI_PPI_DESCRIPTOR *OldPpi,
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IN CONST EFI_PEI_PPI_DESCRIPTOR *NewPpi
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);
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/**
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This service enables PEIMs to discover a given instance of an interface.
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@param Guid A pointer to the GUID whose corresponding interface needs to be
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found.
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@param Instance The N-th instance of the interface that is required.
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@param PpiDescriptor A pointer to instance of the EFI_PEI_PPI_DESCRIPTOR.
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@param Ppi A pointer to the instance of the interface.
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@retval EFI_SUCCESS The interface was successfully returned.
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@retval EFI_NOT_FOUND The PPI descriptor is not found in the database.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesLocatePpi (
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IN CONST EFI_GUID *Guid,
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IN UINTN Instance,
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IN OUT EFI_PEI_PPI_DESCRIPTOR **PpiDescriptor,
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IN OUT VOID **Ppi
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);
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/**
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This service enables PEIMs to register a given service to be invoked when another service is
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installed or reinstalled.
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@param NotifyList A pointer to the list of notification interfaces that the caller
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shall install.
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@retval EFI_SUCCESS The interface was successfully installed.
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@retval EFI_INVALID_PARAMETER The NotifyList pointer is NULL.
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@retval EFI_INVALID_PARAMETER Any of the PEI notify descriptors in the list do not have the
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EFI_PEI_PPI_DESCRIPTOR_NOTIFY_TYPES bit set in the Flags field.
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@retval EFI_OUT_OF_RESOURCES There is no additional space in the PPI database.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesNotifyPpi (
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IN CONST EFI_PEI_NOTIFY_DESCRIPTOR *NotifyList
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);
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/**
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This service enables PEIMs to ascertain the present value of the boot mode.
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@param BootMode A pointer to contain the value of the boot mode.
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@retval EFI_SUCCESS The boot mode was returned successfully.
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@retval EFI_INVALID_PARAMETER BootMode is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesGetBootMode (
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OUT EFI_BOOT_MODE *BootMode
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);
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/**
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This service enables PEIMs to update the boot mode variable.
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@param BootMode The value of the boot mode to set.
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@retval EFI_SUCCESS The value was successfully updated
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesSetBootMode (
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IN EFI_BOOT_MODE BootMode
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);
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/**
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This service enables a PEIM to ascertain the address of the list of HOBs in memory.
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@param HobList A pointer to the list of HOBs that the PEI Foundation will initialize.
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@retval EFI_SUCCESS The list was successfully returned.
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@retval EFI_NOT_AVAILABLE_YET The HOB list is not yet published.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesGetHobList (
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OUT VOID **HobList
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);
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/**
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This service enables PEIMs to create various types of HOBs.
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@param Type The type of HOB to be installed.
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@param Length The length of the HOB to be added.
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@param Hob The address of a pointer that will contain the HOB header.
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@retval EFI_SUCCESS The HOB was successfully created.
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@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesCreateHob (
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IN UINT16 Type,
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IN UINT16 Length,
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OUT VOID **Hob
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);
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/**
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This service enables PEIMs to discover additional firmware volumes.
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@param Instance This instance of the firmware volume to find. The value 0 is the
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Boot Firmware Volume (BFV).
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@param VolumeHandle Pointer to the firmware volume header of the volume to return.
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@retval EFI_SUCCESS The volume was found.
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@retval EFI_NOT_FOUND The volume was not found.
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@retval EFI_INVALID_PARAMETER FwVolHeader is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsFindNextVolume (
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IN UINTN Instance,
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IN OUT EFI_PEI_FV_HANDLE *VolumeHandle
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);
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/**
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This service enables PEIMs to discover additional firmware files.
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@param SearchType A filter to find files only of this type.
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@param VolumeHandle Pointer to the firmware volume header of the volume to search.
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This parameter must point to a valid FFS volume.
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@param FileHandle Pointer to the current file from which to begin searching.
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@retval EFI_SUCCESS The file was found.
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@retval EFI_NOT_FOUND The file was not found.
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@retval EFI_NOT_FOUND The header checksum was not zero.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsFindNextFile (
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IN EFI_FV_FILETYPE SearchType,
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IN EFI_PEI_FV_HANDLE VolumeHandle,
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IN OUT EFI_PEI_FILE_HANDLE *FileHandle
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);
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/**
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This service enables PEIMs to discover sections of a given type within a valid FFS file.
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@param SectionType The value of the section type to find.
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@param FileHandle A pointer to the file header that contains the set of sections to
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be searched.
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@param SectionData A pointer to the discovered section, if successful.
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@retval EFI_SUCCESS The section was found.
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@retval EFI_NOT_FOUND The section was not found.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsFindSectionData (
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IN EFI_SECTION_TYPE SectionType,
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IN EFI_PEI_FILE_HANDLE FileHandle,
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OUT VOID **SectionData
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);
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/**
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This service enables PEIMs to register the permanent memory configuration
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that has been initialized with the PEI Foundation.
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@param MemoryBegin The value of a region of installed memory.
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@param MemoryLength The corresponding length of a region of installed memory.
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@retval EFI_SUCCESS The region was successfully installed in a HOB.
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@retval EFI_INVALID_PARAMETER MemoryBegin and MemoryLength are illegal for this system.
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@retval EFI_OUT_OF_RESOURCES There is no additional space for HOB creation.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesInstallPeiMemory (
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IN EFI_PHYSICAL_ADDRESS MemoryBegin,
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IN UINT64 MemoryLength
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);
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/**
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This service enables PEIMs to allocate memory after the permanent memory has been installed by a
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PEIM.
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@param MemoryType Type of memory to allocate.
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@param Pages Number of pages to allocate.
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@param Memory Pointer of memory allocated.
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@retval EFI_SUCCESS The memory range was successfully allocated.
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@retval EFI_INVALID_PARAMETER Type is not equal to AllocateAnyPages.
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@retval EFI_NOT_AVAILABLE_YET Called with permanent memory not available.
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@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesAllocatePages (
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IN EFI_MEMORY_TYPE MemoryType,
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IN UINTN Pages,
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OUT EFI_PHYSICAL_ADDRESS *Memory
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);
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/**
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This service allocates memory from the Hand-Off Block (HOB) heap.
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@param Size The number of bytes to allocate from the pool.
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@param Buffer If the call succeeds, a pointer to a pointer to the allocate
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buffer; undefined otherwise.
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@retval EFI_SUCCESS The allocation was successful
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@retval EFI_OUT_OF_RESOURCES There is not enough heap to allocate the requested size.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesAllocatePool (
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IN UINTN Size,
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OUT VOID **Buffer
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);
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/**
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Resets the entire platform.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_NOT_AVAILABLE_YET The service has not been installed yet.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesResetSystem (
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VOID
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);
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/**
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This service is a wrapper for the PEI Service FfsFindByName(), except the pointer to the PEI Services
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Table has been removed. See the Platform Initialization Pre-EFI Initialization Core Interface
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Specification for details.
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@param FileName A pointer to the name of the file to
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find within the firmware volume.
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@param VolumeHandle The firmware volume to search FileHandle
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Upon exit, points to the found file's
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handle or NULL if it could not be found.
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@param FileHandle Pointer to found file handle
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@retval EFI_SUCCESS File was found.
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@retval EFI_NOT_FOUND File was not found.
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@retval EFI_INVALID_PARAMETER VolumeHandle or FileHandle or
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FileName was NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsFindByName (
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IN CONST EFI_GUID *FileName,
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IN CONST EFI_PEI_FV_HANDLE VolumeHandle,
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OUT EFI_PEI_FILE_HANDLE *FileHandle
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);
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/**
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This service is a wrapper for the PEI Service FfsGetFileInfo(), except the pointer to the PEI Services
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Table has been removed. See the Platform Initialization Pre-EFI Initialization Core Interface
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Specification for details.
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@param FileHandle Handle of the file.
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@param FileInfo Upon exit, points to the file's
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information.
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@retval EFI_SUCCESS File information returned.
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@retval EFI_INVALID_PARAMETER If FileHandle does not
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represent a valid file.
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@retval EFI_INVALID_PARAMETER If FileInfo is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsGetFileInfo (
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IN CONST EFI_PEI_FILE_HANDLE FileHandle,
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OUT EFI_FV_FILE_INFO *FileInfo
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);
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/**
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This service is a wrapper for the PEI Service FfsGetVolumeInfo(), except the pointer to the PEI Services
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Table has been removed. See the Platform Initialization Pre-EFI Initialization Core Interface
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Specification for details.
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@param VolumeHandle Handle of the volume.
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@param VolumeInfo Upon exit, points to the volume's
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information.
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@retval EFI_SUCCESS File information returned.
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@retval EFI_INVALID_PARAMETER If FileHandle does not
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represent a valid file.
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@retval EFI_INVALID_PARAMETER If FileInfo is NULL.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesFfsGetVolumeInfo (
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IN EFI_PEI_FV_HANDLE VolumeHandle,
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OUT EFI_FV_INFO *VolumeInfo
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);
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/**
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This service is a wrapper for the PEI Service RegisterForShadow(), except the pointer to the PEI Services
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Table has been removed. See the Platform Initialization Pre-EFI Initialization Core Interface
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Specification for details.
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@param FileHandle PEIM's file handle. Must be the currently
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executing PEIM.
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@retval EFI_SUCCESS The PEIM was successfully registered for
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shadowing.
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@retval EFI_ALREADY_STARTED The PEIM was previously
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registered for shadowing.
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@retval EFI_NOT_FOUND The FileHandle does not refer to a
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valid file handle.
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**/
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EFI_STATUS
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EFIAPI
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PeiServicesRegisterForShadow (
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IN EFI_PEI_FILE_HANDLE FileHandle
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);
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#endif
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