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Intel Extensible Firmware Interface Specification

Intel Extensible Firmware Interface Specification (494 pages)

Intel Extensible Firmware Interface Specification

Brand: Intel | Category: Network Router | Size: 2.85 MB

Table of Contents

Revision History
3
Table of Contents
5
Tables

20
- Overview
  20
  - Organization of EFI Specification
    20
1 Introduction

21
- Goals
  21
- Target Audience
  23
- Related Information
  24
- Prerequisite Specifications
  26
  - ACPI Specification
    26
  - Wfm Specification
    26
- EFI Design Overview
  27
  - EFI Conceptual Overview
    28
- Figures
  
  28
- Migration Requirements
  29
  - Legacy Operating System Support
    29
  - Supporting the EFI Specification on a Legacy Platform
    29
- Conventions Used in this Document
  30
2 Overview

32
Boot Manager

32
- Firmware Core
  32
  - EFI Services
    32
  - EFI Runtime Services
    33
- Calling Conventions
  34
  - Common EFI Data Types
    34
  - Modifiers for Common EFI Data Types
    35
  - IA-32 Platforms
    36
  - Itanium-Based Platforms
    36
- Protocols
  37
  - Construction of a Protocol
    37
  - EFI Protocols
    38
- Requirements
  39
- TPL Usage
  45
- TPL Restrictions
  46
  - Createevent()
    47
  - Closeevent()
    51
  - Signalevent()
    52
  - Waitforevent()
    53
  - Checkevent()
    54
  - Settimer()
    55
  - Raisetpl()
    57
  - Restoretpl()
    59
3 Services

47
- Memory Allocation Services
  60
- Memory Allocation Functions
  60
- Memory Type Usage before Exitbootservices()
  61
- Memory Type Usage after Exitbootservices()
  62
  - Allocatepages()
    63
  - Freepages()
    66
  - Getmemorymap()
    67
  - Allocatepool()
    71
  - Freepool()
    72
- Protocol Handler Services
  73
- Protocol Interface Functions
  73
  - Device Handle to Protocol Handler Mapping
    74
  - Installprotocolinterface()
    75
  - Uninstallprotocolinterface()
    77
  - Reinstallprotocolinterface()
    78
  - Registerprotocolnotify()
    79
  - Locatehandle()
    80
  - Handleprotocol()
    82
  - Locatedevicepath()
    83
- Image Services
  85
- Image Type Differences Summary
  85
- Image Functions
  86
  - Loadimage()
    87
  - Startimage()
    89
  - Unloadimage()
    90
  - Efi_Image_Entry_Point
    91
  - Exit()
    92
  - Exitbootservices()
    94
- Variable Services Functions
  95
  - Getvariable()
    96
  - Getnextvariablename()
    98
  - Setvariable()
    100
- Time Services Functions
  102
  - Gettime()
    103
  - Settime()
    106
  - Getwakeuptime()
    107
  - Setwakeuptime()
    108
  - Virtual Memory Services
    109
- Virtual Memory Functions
  109
  - Setvirtualaddressmap()
    110
  - Convertpointer()
    112
- Miscellaneous Services Functions
  113
  - Resetsystem()
    114
  - Setwatchdogtimer()
    116
  - Stall()
    118
  - Getnextmonotoniccount()
    119
  - Getnexthighmonotoniccount()
    120
  - Installconfigurationtable()
    121
4 EFI Image

123
- LOADED_IMAGE Protocol
  123
  - Loaded_Image.unload()
    126
- EFI Image Header
  127
- EFI Applications
  128
- EFI os Loaders
  128
- EFI Drivers
  128
  - EFI Image Handoff State
    129
    
    IA-32 Handoff State
    133
- Stack after Imageentrypoint Called, IA-32
  133
  - Handoff State, Itanium-Based Operating Systems
    134
- Stack after Imageentrypoint Called, Itanium-Based Systems
  134
- Device Path Overview
  135
Device Path Protocol

135
- EFI_DEVICE_PATH Protocol
  136
- Device Path Nodes
  137
- Generic Device Path Structures
  137
- Generic Device Path Node Structure
  137
  - Hardware Device Path
    138
- Device Path End Structure
  138
- PCI Device Path
  139
- PCCARD Device Path
  139
- Memory Mapped Device Path
  140
- Vendor Device Path
  140
- Vendor-Defined Device Path
  140
- Controller Device Path
  140
- ACPI Device Path
  141
  - Messaging Device Path
    141
- ATAPI Device Path
  142
- SCSI Device Path
  142
- Fibre Channel Device Path
  142
- 1394 Device Path
  143
- USB Device Path
  143
- USB Class Device Path
  144
- I O Device Path
  144
- MAC Address Device Path
  144
- Ipv4 Device Path
  145
- Ipv6 Device Path
  145
- Infiniband † Device Path
  146
- UART Device Path
  146
- Vendor-Defined Messaging Device Path
  147
  - Media Device Path
    147
    
    Hard Drive
    147
- Hard Drive Media Device Path
  148
- CD-ROM Media Device Path
  149
- Vendor-Defined Media Device Path
  149
- File Path Media Device Path
  150
  - Media Protocol Device Path
    150
- Media Protocol Media Device Path
  150
- BIOS Boot Specification Device Path
  151
- Device Path Generation Rules
  151
  - Housekeeping Rules
    151
  - Rules with ACPI _HID and _UID
    152
- ACPI _CRS to EFI Device Path Mapping
  152
  - Rules with ACPI _ADR
    153
  - Hardware Vs. Messaging Device Path Rules
    153
- ACPI _ADR to EFI Device Path Mapping
  153
  - Media Device Path Rules
    154
  - Other Rules
    154
6 Device I/O Protocol

155
- Device I/O Overview
  155
- DEVICE_IO Protocol
  156
  - Device_Io.mem(), .Io(), and .Pci()
    159
- PCI Address
  160
  - Device_Io.pcidevicepath()
    161
  - Device_Io.map()
    162
  - Device_Io.unmap()
    164
  - Device_Io.allocatebuffer()
    165
  - Device_Io.flush()
    167
  - Device_Io.freebuffer()
    168
7 Console I/O Protocol

169
- Console I/O Overview
  169
- Consolein Definition
  170
- Supported Unicode Control Characters
  170
- EFI Scan Codes for SIMPLE_INPUT_INTERFACE
  170
- SIMPLE_INPUT Protocol
  172
  - Simple_Input.reset()
    173
  - Simple_Input.readkeystroke
    174
- Consoleout or Standarderror
  175
- SIMPLE_TEXT_OUTPUT Protocol
  175
  - Simple_Text_Output.reset()
    178
  - Simple_Text_Output.outputstring()
    179
  - Simple_Text_Output.teststring()
    182
  - Simple_Text_Output.querymode()
    183
  - Simple_Text_Output.setmode()
    184
  - Simple_Text_Output.setattribute()
    185
  - Simple_Text_Output.clearscreen()
    187
  - Simple_Text_Output.setcursorposition()
    188
  - Simple_Text_Output.enablecursor()
    189
8 Block I/O Protocol

191
- BLOCK_IO Protocol
  191
  - Efi_Block_Io.reset()
    194
  - Efi_Block_Io.readblocks()
    195
  - Efi_Block_Io.writeblocks()
    197
  - Block_Io.flushblocks()
    199
9 Disk I/O Protocol

201
- DISK_IO Protocol
  201
  - Efi_Disk_Io.readdisk()
    203
  - Efi_Disk_Io.writedisk()
    204
10 File System Protocol

205
- Simple File System Protocol
  205
  - Efi_File_Io_Interface.openvolume()
    207
- EFI_FILE Protocol
  208
  - Efi_File.open()
    210
  - Efi_File.close()
    213
  - Efi_File.delete()
    214
  - Efi_File.read()
    215
  - Efi_File.write()
    216
  - Efi_File.setposition()
    217
  - Efi_File.getposition()
    218
  - Efi_File.getinfo()
    219
  - Efi_File.setinfo()
    220
  - Efi_File.flush()
    221
  - Efi_File_Info
    222
  - Efi_File_System_Info
    224
  - Efi_File_System_Volume_Label
    225
11 Load File Protocol

227
- LOAD_FILE Protocol
  227
  - Load_File.loadfile()
    228
12 Serial I/O Protocol

231
- SERIAL_IO Protocol
  231
  - Serial_Io.reset()
    235
  - Serial_Io.setattributes()
    236
  - Serial_Io.setcontrol()
    238
  - Serial_Io.getcontrol()
    240
  - Serial_Io.write()
    241
  - Serial_Io.read()
    242
13 Unicode Collation Protocol

243
- UNICODE_COLLATION Protocol
  243
  - Unicode_Collation.stricoll()
    245
  - Unicode_Collation.metaimatch()
    246
  - Unicode_Collation.strlwr()
    248
  - Unicode_Collation.strupr()
    249
  - Unicode_Collation.fattostr()
    250
  - Unicode_Collation.strtofat()
    251
14 PXE Base Code Protocol35

253
- EFI_PXE_BASE_CODE Protocol
  253
- PXE Tag Definitions for EFI
  263
  - Efi_Pxe_Base_Code.start()
    265
  - Efi_Pxe_Base_Code.stop()
    268
  - Efi_Pxe_Base_Code.dhcp()
    269
  - Efi_Pxe_Base_Code.discover()
    271
  - Efi_Pxe_Base_Code.mtftp()
    275
  - Efi_Pxe_Base_Code.udpwrite()
    279
  - Efi_Pxe_Base_Code.udpread()
    281
- Destination IP Filter Operation
  282
- Destination UDP Port Filter Operation
  282
- Source IP Filter Operation
  283
- Source UDP Port Filter Operation
  283
  - Efi_Pxe_Base_Code.setipfilter()
    284
  - Efi_Pxe_Base_Code.arp()
    285
  - Efi_Pxe_Base_Code.setparameters()
    286
  - Efi_Pxe_Base_Code.setstationip()
    288
  - Efi_Pxe_Base_Code.setpackets()
    289
- EFI_PXE_BASE_CODE_CALLBACK Protocol
  291
  - Efi_Pxe_Base_Code_Callback.callback()
    292
15 Simple Network Protocol

295
- EFI_SIMPLE_NETWORK Protocol
  295
  - Efi_Simple_Network.start()
    300
  - Efi_Simple_Network.stop()
    301
  - Efi_Simple_Network.initialize()
    302
  - Efi_Simple_Network.reset()
    303
  - Efi_Simple_Network.shutdown()
    304
  - Efi_Simple_Network.receivefilters()
    305
  - Efi_Simple_Network.stationaddress()
    307
  - Efi_Simple_Network.statistics()
    308
  - Efi_Simple_Network.mcastiptomac()
    311
  - Efi_Simple_Network.nvdata()
    312
  - Efi_Simple_Network.getstatus()
    314
  - Efi_Simple_Network.transmit()
    316
  - Efi_Simple_Network.receive()
    318
- NETWORK_INTERFACE_IDENTIFIER Protocol
  320
- System Partition
  323
File System Format

324
- File Names
  324
- Directory Structure
  324
- Partition Discovery
  326
- Nesting of Legacy MBR Partition Records
  326
  - EFI Partition Header
    327
- GUID Partition Table (GPT) Scheme
  328
- GUID Partition Table Header
  329
- GUID Partition Entry
  330
- Defined GUID Partition Entry - Partition Type Guids
  331
- Defined GUID Partition Entry - Attributes
  331
  - ISO-9660 and el Torito
    332
  - Legacy Master Boot Record
    332
- Legacy Master Boot Record
  333
- Legacy Master Boot Record Partition Record
  333
  - Legacy Master Boot Record and GPT Partitions
    334
- PMBR Entry to Precede a GUID Partition Table Header
  334
  - Media Formats
    335
    
    Diskette
    335
    
    Hard Drive
    335
    
    Removable Media
    335
    
    CD-ROM and DVD-ROM
    336
  - Network
    336
  - Firmware Boot Manager
    337
  - Globally-Defined Variables
    341
- Global Variables
  341
  - Boot Option Variables Default Behavior
    343
  - Boot Mechanisms
    343
    
    Boot Via Simple File Protocol
    343
    
    Removable Media Boot Behavior
    343
    
    Boot Via LOAD_FILE Protocol
    344
    
    Future Boot Media
    344
    
    Network Booting
    344
- EFI Image Types
  344
- Standard PCI Expansion ROM Header
  345
- EFI PCI Expansion ROM Header
  346
- PCI Data Structure
  346
E Alphabetic Function Lists

377
F Glossary

377
- G-1. Definitions
  391
- G.1 Introduction
  391
- G.1.1 Definitions
  391
- G-2. Referenced Specification
  392
- G.1.2 Referenced Specifications
  392
- G-1. Network Stacks with Three Classes of Drivers
  394
- G.1.3 os Network Stacks
  394
- G-3. Driver Types: Pros and Cons
  395
- G-2. !PXE Structures for H/W and S/W UNDI
  396
- G.2 Overview
  396
- G.2.1 32/64-Bit UNDI Interface
  396
- G-4. !PXE Structure Field Definitions
  397
- Issuing UNDI Commands
  401
  - G-4. UNDI Command Descriptor Block (CDB)
    402
  - G-5. UNDI CDB Field Definitions
    402
  - G.2.2 UNDI Command Format
    402
  - G.3 UNDI C Definitions
    404
  - G.3.1 Portability Macros
    404
  - G.3.2 Miscellaneous Macros
    408
  - G.3.3 Portability Types
    408
- Storage Types
  408
  - G.3.4 Simple Types
    410
  - G.3.5 Compound Types
    427
  - G-6. UNDI States, Transitions & Valid Commands
    434
  - G.4 UNDI Commands
    434
  - G.4.1 Command Linking & Queuing
    435
- Linked Cdbs
  435
- G.4.2 Get State
  436
- Queued Cdbs
  436
  - G.4.3 Start
    438
  - G.4.4 Stop
    440
  - G.4.5 Get Init Info
    441
  - G.4.6 Get Config Info
    445
  - G.4.7 Initialize
    448
  - G.4.8 Reset
    452
  - G.4.9 Shutdown
    453
- G.4.10 Interrupt Enables
  455
- G.4.11 Receive Filters
  457
- G.4.12 Station Address
  460
- G.4.13 Statistics
  462
- G.4.14 Mcast IP to MAC
  466
- G.4.15 Nvdata
  467
- G.4.16 Get Status
  472
- G.4.17 Fill Header
  474
  - G.4.18 Transmit
    478
  - G.4.19 Receive
    482
- UNDI as an EFI Runtime Driver
  484
Index

487

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