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/*++
Copyright (c) 2004, 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.
Module Name:
EfiHobLib.h
Abstract:
--*/
#ifndef _EFI_HOB_LIB_H_
#define _EFI_HOB_LIB_H_
#include "PeiHob.h"
VOID *
GetHob (
IN UINT16 Type,
IN VOID *HobStart
)
/*++
Routine Description:
This function returns the first instance of a HOB type in a HOB list.
Arguments:
Type The HOB type to return.
HobStart The first HOB in the HOB list.
Returns:
HobStart There were no HOBs found with the requested type.
else Returns the first HOB with the matching type.
--*/
;
UINTN
GetHobListSize (
IN VOID *HobStart
)
/*++
Routine Description:
Get size of hob list.
Arguments:
HobStart - Start pointer of hob list
Returns:
Size of hob list.
--*/
;
UINT32
GetHobVersion (
IN VOID *HobStart
)
/*++
Routine Description:
Get hob version.
Arguments:
HobStart - Start pointer of hob list
Returns:
Hob version.
--*/
;
EFI_STATUS
GetHobBootMode (
IN VOID *HobStart,
OUT EFI_BOOT_MODE *BootMode
)
/*++
Routine Description:
Get current boot mode.
Arguments:
HobStart - Start pointer of hob list
BootMode - Current boot mode recorded in PHIT hob
Returns:
EFI_NOT_FOUND - Invalid hob header
EFI_SUCCESS - Boot mode found
--*/
;
EFI_STATUS
GetCpuHobInfo (
IN VOID *HobStart,
OUT UINT8 *SizeOfMemorySpace,
OUT UINT8 *SizeOfIoSpace
)
/*++
Routine Description:
Get information recorded in CPU hob (Memory space size, Io space size)
Arguments:
HobStart - Start pointer of hob list
SizeOfMemorySpace - Size of memory size
SizeOfIoSpace - Size of IO size
Returns:
EFI_NOT_FOUND - CPU hob not found
EFI_SUCCESS - CPU hob found and information got.
--*/
;
EFI_STATUS
GetDxeCoreHobInfo (
IN VOID *HobStart,
OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
OUT UINT64 *Length,
OUT VOID **EntryPoint,
OUT EFI_GUID **FileName
)
/*++
Routine Description:
Get memory allocation hob created for DXE core and extract its information
Arguments:
HobStart - Start pointer of the hob list
BaseAddress - Start address of memory allocated for DXE core
Length - Length of memory allocated for DXE core
EntryPoint - DXE core file name
FileName - FileName
Returns:
EFI_NOT_FOUND - DxeCoreHob not found
EFI_SUCCESS - DxeCoreHob found and information got
--*/
;
EFI_STATUS
GetNextFirmwareVolumeHob (
IN OUT VOID **HobStart,
OUT EFI_PHYSICAL_ADDRESS *BaseAddress,
OUT UINT64 *Length
)
/*++
Routine Description:
Get next firmware volume hob from HobStart
Arguments:
HobStart - Start pointer of hob list
BaseAddress - Start address of next firmware volume
Length - Length of next firmware volume
Returns:
EFI_NOT_FOUND - Next firmware volume not found
EFI_SUCCESS - Next firmware volume found with address information
--*/
;
EFI_STATUS
GetNextGuidHob (
IN OUT VOID **HobStart,
IN EFI_GUID * Guid,
OUT VOID **Buffer,
OUT UINTN *BufferSize OPTIONAL
)
/*++
Routine Description:
Get the next guid hob.
Arguments:
HobStart A pointer to the start hob.
Guid A pointer to a guid.
Buffer A pointer to the buffer.
BufferSize Buffer size.
Returns:
Status code.
EFI_NOT_FOUND - Next Guid hob not found
EFI_SUCCESS - Next Guid hob found and data for this Guid got
--*/
;
EFI_STATUS
GetPalEntryHobInfo (
IN VOID *HobStart,
OUT EFI_PHYSICAL_ADDRESS *PalEntry
)
/*++
Routine Description:
Get PAL entry from PalEntryHob
Arguments:
HobStart - Start pointer of hob list
PalEntry - Pointer to PAL entry
Returns:
Status code.
--*/
;
EFI_STATUS
GetIoPortSpaceAddressHobInfo (
IN VOID *HobStart,
OUT EFI_PHYSICAL_ADDRESS *IoPortSpaceAddress
)
/*++
Routine Description:
Get IO port space address from IoBaseHob.
Arguments:
HobStart - Start pointer of hob list
IoPortSpaceAddress - IO port space address
Returns:
Status code
--*/
;
#endif
|
