audk/MdePkg/Include/Pi/PiHob.h

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/* @file
HOB related definitions in PI.
Copyright (c) 2006 - 2007, 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: PiHob.h
@par Revision Reference:
Version 1.0.
**/
#ifndef __PI_HOB_H__
#define __PI_HOB_H__
//
// HobType of EFI_HOB_GENERIC_HEADER.
//
#define EFI_HOB_TYPE_HANDOFF 0x0001
#define EFI_HOB_TYPE_MEMORY_ALLOCATION 0x0002
#define EFI_HOB_TYPE_RESOURCE_DESCRIPTOR 0x0003
#define EFI_HOB_TYPE_GUID_EXTENSION 0x0004
#define EFI_HOB_TYPE_FV 0x0005
#define EFI_HOB_TYPE_CPU 0x0006
#define EFI_HOB_TYPE_MEMORY_POOL 0x0007
#define EFI_HOB_TYPE_FV2 0x0009
#define EFI_HOB_TYPE_LOAD_PEIM 0x000A
#define EFI_HOB_TYPE_UNUSED 0xFFFE
#define EFI_HOB_TYPE_END_OF_HOB_LIST 0xFFFF
//
// Describes the format and size of the data inside the HOB.
// All HOBs must contain this generic HOB header.
//
typedef struct {
UINT16 HobType;
UINT16 HobLength;
UINT32 Reserved;
} EFI_HOB_GENERIC_HEADER;
//
// Value of version ofinEFI_HOB_HANDOFF_INFO_TABLE.
//
#define EFI_HOB_HANDOFF_TABLE_VERSION 0x0009
//
// Contains general state information used by the HOB producer phase.
// This HOB must be the first one in the HOB list.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
UINT32 Version;
EFI_BOOT_MODE BootMode;
EFI_PHYSICAL_ADDRESS EfiMemoryTop;
EFI_PHYSICAL_ADDRESS EfiMemoryBottom;
EFI_PHYSICAL_ADDRESS EfiFreeMemoryTop;
EFI_PHYSICAL_ADDRESS EfiFreeMemoryBottom;
EFI_PHYSICAL_ADDRESS EfiEndOfHobList;
} EFI_HOB_HANDOFF_INFO_TABLE;
typedef struct {
EFI_GUID Name;
EFI_PHYSICAL_ADDRESS MemoryBaseAddress;
UINT64 MemoryLength;
EFI_MEMORY_TYPE MemoryType;
//
// Padding for Itanium processor family
//
UINT8 Reserved[4];
} EFI_HOB_MEMORY_ALLOCATION_HEADER;
//
// Describes all memory ranges used during the HOB producer
// phase that exist outside the HOB list. This HOB type
// describes how memory is used,
// not the physical attributes of memory.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_HOB_MEMORY_ALLOCATION_HEADER AllocDescriptor;
//
// Additional data pertaining to the <20><>Name<6D><65> Guid memory
// may go here.
//
} EFI_HOB_MEMORY_ALLOCATION;
//
// Describes the memory stack that is produced by the HOB producer
// phase and upon which all postmemory-installed executable
// content in the HOB producer phase is executing.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_HOB_MEMORY_ALLOCATION_HEADER AllocDescriptor;
} EFI_HOB_MEMORY_ALLOCATION_STACK;
//
// Defines the location of the boot-strap
// processor (BSP) BSPStore (<28><>Backing Store Pointer Store<72><65>).
// This HOB is valid for the Itanium processor family only
// register overflow store.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_HOB_MEMORY_ALLOCATION_HEADER AllocDescriptor;
} EFI_HOB_MEMORY_ALLOCATION_BSP_STORE;
//
// Defines the location and entry point of the HOB consumer phase.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_HOB_MEMORY_ALLOCATION_HEADER MemoryAllocationHeader;
EFI_GUID ModuleName;
EFI_PHYSICAL_ADDRESS EntryPoint;
} EFI_HOB_MEMORY_ALLOCATION_MODULE;
typedef UINT32 EFI_RESOURCE_TYPE;
//
// Value of ResourceType in EFI_HOB_RESOURCE_DESCRIPTOR.
//
#define EFI_RESOURCE_SYSTEM_MEMORY 0x00000000
#define EFI_RESOURCE_MEMORY_MAPPED_IO 0x00000001
#define EFI_RESOURCE_IO 0x00000002
#define EFI_RESOURCE_FIRMWARE_DEVICE 0x00000003
#define EFI_RESOURCE_MEMORY_MAPPED_IO_PORT 0x00000004
#define EFI_RESOURCE_MEMORY_RESERVED 0x00000005
#define EFI_RESOURCE_IO_RESERVED 0x00000006
#define EFI_RESOURCE_MAX_MEMORY_TYPE 0x00000007
typedef UINT32 EFI_RESOURCE_ATTRIBUTE_TYPE;
//
// These types can be ORed together as needed.
//
// The first three enumerations describe settings
//
#define EFI_RESOURCE_ATTRIBUTE_PRESENT 0x00000001
#define EFI_RESOURCE_ATTRIBUTE_INITIALIZED 0x00000002
#define EFI_RESOURCE_ATTRIBUTE_TESTED 0x00000004
//
// The rest of the settings describe capabilities
//
#define EFI_RESOURCE_ATTRIBUTE_SINGLE_BIT_ECC 0x00000008
#define EFI_RESOURCE_ATTRIBUTE_MULTIPLE_BIT_ECC 0x00000010
#define EFI_RESOURCE_ATTRIBUTE_ECC_RESERVED_1 0x00000020
#define EFI_RESOURCE_ATTRIBUTE_ECC_RESERVED_2 0x00000040
#define EFI_RESOURCE_ATTRIBUTE_READ_PROTECTED 0x00000080
#define EFI_RESOURCE_ATTRIBUTE_WRITE_PROTECTED 0x00000100
#define EFI_RESOURCE_ATTRIBUTE_EXECUTION_PROTECTED 0x00000200
#define EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE 0x00000400
#define EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE 0x00000800
#define EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE 0x00001000
#define EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE 0x00002000
#define EFI_RESOURCE_ATTRIBUTE_16_BIT_IO 0x00004000
#define EFI_RESOURCE_ATTRIBUTE_32_BIT_IO 0x00008000
#define EFI_RESOURCE_ATTRIBUTE_64_BIT_IO 0x00010000
#define EFI_RESOURCE_ATTRIBUTE_UNCACHED_EXPORTED 0x00020000
//
// Describes the resource properties of all fixed,
// nonrelocatable resource ranges found on the processor
// host bus during the HOB producer phase.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_GUID Owner;
EFI_RESOURCE_TYPE ResourceType;
EFI_RESOURCE_ATTRIBUTE_TYPE ResourceAttribute;
EFI_PHYSICAL_ADDRESS PhysicalStart;
UINT64 ResourceLength;
} EFI_HOB_RESOURCE_DESCRIPTOR;
//
// Allows writers of executable content in the HOB producer phase to
// maintain and manage HOBs with specific GUID.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_GUID Name;
//
// Guid specific data goes here
//
} EFI_HOB_GUID_TYPE;
//
// Details the location of firmware volumes that contain firmware files.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_PHYSICAL_ADDRESS BaseAddress;
UINT64 Length;
} EFI_HOB_FIRMWARE_VOLUME;
//
// Details the location of a firmware volume which was extracted
// from a file within another firmware volume.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
EFI_PHYSICAL_ADDRESS BaseAddress;
UINT64 Length;
EFI_GUID FvName;
EFI_GUID FileName;
} EFI_HOB_FIRMWARE_VOLUME2;
//
// Describes processor information, such as address space and I/O space capabilities.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
UINT8 SizeOfMemorySpace;
UINT8 SizeOfIoSpace;
UINT8 Reserved[6];
} EFI_HOB_CPU;
//
// Describes pool memory allocations.
//
typedef struct {
EFI_HOB_GENERIC_HEADER Header;
} EFI_HOB_MEMORY_POOL;
//
// Union of all the possible HOB Types
//
typedef union {
EFI_HOB_GENERIC_HEADER *Header;
EFI_HOB_HANDOFF_INFO_TABLE *HandoffInformationTable;
EFI_HOB_MEMORY_ALLOCATION *MemoryAllocation;
EFI_HOB_MEMORY_ALLOCATION_BSP_STORE *MemoryAllocationBspStore;
EFI_HOB_MEMORY_ALLOCATION_STACK *MemoryAllocationStack;
EFI_HOB_MEMORY_ALLOCATION_MODULE *MemoryAllocationModule;
EFI_HOB_RESOURCE_DESCRIPTOR *ResourceDescriptor;
EFI_HOB_GUID_TYPE *Guid;
EFI_HOB_FIRMWARE_VOLUME *FirmwareVolume;
EFI_HOB_CPU *Cpu;
EFI_HOB_MEMORY_POOL *Pool;
UINT8 *Raw;
} EFI_PEI_HOB_POINTERS;
#endif