Document Outline

• Extensible Firmware Interface Specification
• Disclaimer
• Revision History
• Contents
• 1 Introduction
  • 1.1 EFI Driver Model Extensions
  • 1.2 Overview
  • 1.3 Goals
  • 1.4 Target Audience
  • 1.5 EFI Design Overview
  • 1.6 EFI Driver Model
    • 1.6.1 EFI Driver Model Goals
    • 1.6.2 Legacy Option ROM Issues
  • 1.7 Migration Requirements
    • 1.7.1 Legacy Operating System Support
    • 1.7.2 Supporting the EFI Specification on a Legacy Platform
  • 1.8 Conventions Used in This Document
    • 1.8.1 Data Structure Descriptions
    • 1.8.2 Protocol Descriptions
    • 1.8.3 Procedure Descriptions
    • 1.8.4 Instruction Descriptions
    • 1.8.5 Pseudo-Code Conventions
    • 1.8.6 Typographic Conventions
• 2 Overview
  • 2.1 Boot Manager
    • 2.1.1 EFI Images
    • 2.1.2 EFI Applications
    • 2.1.3 EFI OS Loaders
    • 2.1.4 EFI Drivers
  • 2.2 Firmware Core
    • 2.2.1 EFI Services
    • 2.2.2 Runtime Services
  • 2.3 Calling Conventions
    • 2.3.1 Data Types
    • 2.3.2 IA-32 Platforms
      • 2.3.2.1 Handoff State
    • 2.3.3 Itanium®-Based Platforms
      • 2.3.3.1 Handoff State
  • 2.4 Protocols
  • 2.5 EFI Driver Model
    • 2.5.1 Legacy Option ROM Issues
      • 2.5.1.1 IA-32 16-Bit Real Mode Binaries
      • 2.5.1.2 Fixed Resources for Working with Option ROMs
      • 2.5.1.3 Matching Option ROMs to their Devices
      • 2.5.1.4 Ties to PC-AT System Design
      • 2.5.1.5 Ambiguities in Specification and Workarounds Born of Experience
    • 2.5.2 Driver Initialization
    • 2.5.3 Host Bus Controllers
    • 2.5.4 Device Drivers
    • 2.5.5 Bus Drivers
    • 2.5.6 Platform Components
    • 2.5.7 Hot-Plug Events
  • 2.6 Requirements
    • 2.6.1 Required Elements
    • 2.6.2 Platform-Specific Elements
    • 2.6.3 Driver-Specific Elements
• 3 Boot Manager
  • 3.1 Firmware Boot Manager
  • 3.2 Globally-Defined Variables
  • 3.3 Boot Option Variables Default Behavior
  • 3.4 Boot Mechanisms
    • 3.4.1 Boot via Simple File Protocol
      • 3.4.1.1 Removable Media Boot Behavior
    • 3.4.2 Boot via LOAD_FILE Protocol
      • 3.4.2.1 Network Booting
      • 3.4.2.2 Future Boot Media
• 4 EFI System Table
  • 4.1 EFI Image Entry Point
    • EFI_IMAGE_ENTRY_POINT
  • 4.2 EFI Table Header
    • EFI_TABLE_HEADER
  • 4.3 EFI System Table
    • EFI_SYSTEM_TABLE
  • 4.4 EFI Boot Services Table
    • EFI_BOOT_SERVICES
  • 4.5 EFI Runtime Services Table
    • EFI_RUNTIME_SERVICES
  • 4.6 EFI Configuration Table
    • EFI_CONFIGURATION_TABLE
  • 4.7 EFI Image Entry Point Examples
    • 4.7.1 EFI Image Entry Point Examples
    • 4.7.2 EFI Driver Model Example
    • 4.7.3 EFI Driver Model Example (Unloadable)
    • 4.7.4 EFI Driver Model Example (Multiple Instances)
• 5 Services - Boot Services
  • 5.1 Event, Timer, and Task Priority Services
    • CreateEvent()
    • CloseEvent()
    • SignalEvent()
    • WaitForEvent()
    • CheckEvent()
    • SetTimer()
    • RaiseTPL()
    • RestoreTPL()
  • 5.2 Memory Allocation Services
    • AllocatePages()
    • FreePages()
    • GetMemoryMap()
    • AllocatePool()
    • FreePool()
  • 5.3 Protocol Handler Services
    • 5.3.1 Driver Model Boot Services
      • InstallProtocolInterface()
      • UninstallProtocolInterface()
      • ReinstallProtocolInterface()
      • RegisterProtocolNotify()
      • LocateHandle()
      • HandleProtocol()
      • LocateDevicePath()
      • OpenProtocol()
      • CloseProtocol()
      • OpenProtocolInformation()
      • ConnectController()
      • DisconnectController()
      • ProtocolsPerHandle()
      • LocateHandleBuffer()
      • LocateProtocol()
      • InstallMultipleProtocolInterfaces()
      • UninstallMultipleProtocolInterfaces()
  • 5.4 Image Services
    • LoadImage()
    • StartImage()
    • UnloadImage()
    • EFI_IMAGE_ENTRY_POINT
    • Exit()
    • ExitBootServices()
  • 5.5 Miscellaneous Boot Services
    • SetWatchdogTimer()
    • Stall()
    • CopyMem()
    • SetMem()
    • GetNextMonotonicCount()
    • InstallConfigurationTable()
    • CalculateCrc32()
• 6 Services - Runtime Services
  • 6.1 Variable Services
    • GetVariable()
    • GetNextVariableName()
    • SetVariable()
  • 6.2 Time Services
    • GetTime()
    • SetTime()
    • GetWakeupTime()
    • SetWakeupTime()
  • 6.3 Virtual Memory Services
    • SetVirtualAddressMap()
    • ConvertPointer()
  • 6.4 Miscellaneous Runtime Services
    • ResetSystem()
    • GetNextHighMonotonicCount()
• 7 Protocols - EFI Loaded Image
  • EFI_LOADED_IMAGE Protocol
    • LOADED_IMAGE.Unload()
• 8 Protocols - Device Path Protocol
  • 8.1 Device Path Overview
  • 8.2 EFI_DEVICE_PATH Protocol
    • EFI_DEVICE_PATH Protocol
  • 8.3 Device Path Nodes
    • 8.3.1 Generic Device Path Structures
    • 8.3.2 Hardware Device Path
      • 8.3.2.1 PCI Device Path
      • 8.3.2.2 PCCARD Device Path
      • 8.3.2.3 Memory Mapped Device Path
      • 8.3.2.4 Vendor Device Path
      • 8.3.2.5 Controller Device Path
    • 8.3.3 ACPI Device Path
    • 8.3.4 Messaging Device Path
      • 8.3.4.1 ATAPI Device Path
      • 8.3.4.2 SCSI Device Path
      • 8.3.4.3 Fibre Channel Device Path
      • 8.3.4.4 1394 Device Path
      • 8.3.4.5 USB Device Path
      • 8.3.4.6 USB Class Device Path
      • 8.3.4.7 IO Device Path
      • 8.3.4.8 MAC Address Device Path
      • 8.3.4.9 IPv4 Device Path
      • 8.3.4.10 IPv6 Device Path
      • 8.3.4.11 InfiniBand Device Path
      • 8.3.4.12 UART Device Path
      • 8.3.4.13 Vendor-Defined Messaging Device Path
      • 8.3.4.14 UART Flow Control Messaging Path
    • 8.3.5 Media Device Path
      • 8.3.5.1 Hard Drive
      • 8.3.5.2 CD-ROM Media Device Path
      • 8.3.5.3 Vendor-Defined Media Device Path
      • 8.3.5.4 File Path Media Device Path
      • 8.3.5.5 Media Protocol Device Path
    • 8.3.6 BIOS Boot Specification Device Path
  • 8.4 Device Path Generation Rules
    • 8.4.1 Housekeeping Rules
    • 8.4.2 Rules with ACPI _HID and _UID
    • 8.4.3 Rules with ACPI _ADR
    • 8.4.4 Hardware vs. Messaging Device Path Rules
    • 8.4.5 Media Device Path Rules
    • 8.4.6 Other Rules
• 9 Protocols - EFI Driver Model
  • 9.1 EFI Driver Binding Protocol
    • EFI_DRIVER_BINDING_PROTOCOL
      • EFI_DRIVER_BINDING_PROTOCOL.Supported()
      • EFI_DRIVER_BINDING_PROTOCOL.Start()
      • EFI_DRIVER_BINDING_PROTOCOL.Stop()
  • 9.2 EFI Platform Driver Override Protocol
    • EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL
      • EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL.GetDriver()
      • EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL.GetDriverPath()
      • EFI_PLATFORM_DRIVER_OVERRIDE_PROTOCOL.DriverLoaded()
  • 9.3 EFI Bus Specific Driver Override Protocol
    • EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL
      • EFI_BUS_SPECIFIC_DRIVER_OVERRIDE_PROTOCOL.GetDriver()
  • 9.4 EFI Driver Configuration Protocol
    • EFI_DRIVER_CONFIGURATION_PROTOCOL
      • EFI_DRIVER_CONFIGURATION_PROTOCOL.SetOptions()
      • EFI_DRIVER_CONFIGURATION_PROTOCOL.OptionsValid()
      • EFI_DRIVER_CONFIGURATION_PROTOCOL.ForceDefaults()
  • 9.5 EFI Driver Diagnostics Protocol
    • EFI_DRIVER_DIAGNOSTICS_PROTOCOL
      • EFI_DRIVER_DIAGNOSTICS_PROTOCOL.RunDiagnostics()
  • 9.6 EFI Component Name Protocol
    • EFI_COMPONENT_NAME_PROTOCOL
      • EFI_COMPONENT_NAME_PROTOCOL.GetDriverName()
      • EFI_COMPONENT_NAME_PROTOCOL.GetControllerName()
• 10 Protocols - Console Support
  • 10.1 Console I/O Protocol
    • 10.1.1 Overview
    • 10.1.2 ConsoleIn Definition
  • 10.2 Simple Input Protocol
    • SIMPLE_INPUT
      • SIMPLE_INPUT.Reset()
      • SIMPLE_INPUT.ReadKeyStroke()
    • 10.2.1 ConsoleOut or StandardError
  • 10.3 Simple Text Output Protocol
    • SIMPLE_TEXT_OUTPUT Protocol
      • SIMPLE_TEXT_OUTPUT.Reset()
      • SIMPLE_TEXT_OUTPUT.OutputString()
      • SIMPLE_TEXT_OUTPUT.TestString()
      • SIMPLE_TEXT_OUTPUT.QueryMode()
      • SIMPLE_TEXT_OUTPUT.SetMode()
      • SIMPLE_TEXT_OUTPUT.SetAttribute()
      • SIMPLE_TEXT_OUTPUT.ClearScreen()
      • SIMPLE_TEXT_OUTPUT.SetCursorPosition()
      • SIMPLE_TEXT_OUTPUT.EnableCursor()
  • 10.4 Universal Graphics Adapter Protocols
    • 10.4.1 UGA ROM
    • 10.4.2 UGA Draw Protocol
    • 10.4.3 Blt Buffer
    • 10.4.4 UGA I/O Protocol
    • 10.4.5 Fallback Mode Driver
  • 10.5 UGA Draw Protocol
    • EFI_UGA_DRAW_PROTOCOL
      • EFI_UGA_DRAW_PROTOCOL.GetMode()
      • EFI_UGA_DRAW_PROTOCOL.SetMode()
      • EFI_UGA_DRAW_PROTOCOL.Blt()
  • 10.6 Rules for PCI/AGP Devices
  • 10.7 UGA I/O Protocol
    • EFI_UGA_IO_PROTOCOL
      • EFI_UGA_IO_PROTOCOL.CreateDevice()
      • EFI_UGA_IO_PROTOCOL.DeleteDevice()
      • PUGA_FW_SERVICE_DISPATCH.DispatchService()
  • 10.8 Implementation Rules for an EFI UGA Driver
  • 10.9 UGA Draw Protocol to UGA I/O Protocol Mapping
    • 10.9.1 UGA System Requirements
    • 10.9.2 System Abstraction Requirements
    • 10.9.3 Firmware to OS Hand-off
  • 10.10 Simple Pointer Protocol
    • EFI_SIMPLE_POINTER_PROTOCOL
      • EFI_SIMPLE_POINTER.Reset()
      • EFI_SIMPLE_POINTER.GetState()
  • 10.11 EFI Simple Pointer Device Paths
  • 10.12 Serial I/O Protocol
    • SERIAL_IO_PROTOCOL
      • SERIAL_IO.Reset()
      • SERIAL_IO.SetAttributes()
      • SERIAL_IO.SetControl()
      • SERIAL_IO.GetControl()
      • SERIAL_IO.Write()
      • SERIAL_IO.Read()
• 11 Protocols - Bootable Image Support
  • 11.1 LOAD_FILE Protocol
    • LOAD_FILE Protocol
      • LOAD_FILE.LoadFile()
  • 11.2 File System Format
    • 11.2.1 System Partition
      • 11.2.1.1 File System Format
      • 11.2.1.2 File Names
      • 11.2.1.3 Directory Structure
    • 11.2.2 Partition Discovery
      • 11.2.2.1 EFI Partition Header
      • 11.2.2.2 ISO-9660 and El Torito
      • 11.2.2.3 Legacy Master Boot Record
      • 11.2.2.4 Legacy Master Boot Record and GPT Partitions
    • 11.2.3 Media Formats
      • 11.2.3.1 Removable Media
      • 11.2.3.2 Diskette
      • 11.2.3.3 Hard Drive
      • 11.2.3.4 CD-ROM and DVD-ROM
      • 11.2.3.5 Network
  • 11.3 File System Protocol
    • Simple File System Protocol
      • EFI_FILE_IO_INTERFACE.OpenVolume()
  • 11.4 EFI_FILE Protocol
    • EFI_FILE Protocol
      • EFI_FILE.Open()
      • EFI_FILE.Close()
      • EFI_FILE.Delete()
      • EFI_FILE.Read()
      • EFI_FILE.Write()
      • EFI_FILE.SetPosition()
      • EFI_FILE.GetPosition()
      • EFI_FILE.GetInfo()
      • EFI_FILE.SetInfo()
      • EFI_FILE.Flush()
      • EFI_FILE_INFO
      • EFI_FILE_SYSTEM_INFO
      • EFI_FILE_SYSTEM_VOLUME_LABEL
  • 11.5 DISK_IO Protocol
    • DISK_IO Protocol
      • EFI_DISK_IO.ReadDisk()
      • EFI_DISK_IO.WriteDisk()
  • 11.6 BLOCK_IO Protocol
    • BLOCK_IO Protocol
      • EFI_BLOCK_IO.Reset()
      • EFI_BLOCK_IO.ReadBlocks()
      • EFI_BLOCK_IO.WriteBlocks()
      • EFI_BLOCK_IO.FlushBlocks()
  • 11.7 UNICODE_COLLATION Protocol
    • UNICODE_COLLATION Protocol
      • UNICODE_COLLATION.StriColl()
      • UNICODE_COLLATION.MetaiMatch()
      • UNICODE_COLLATION.StrLwr()
      • UNICODE_COLLATION.StrUpr()
      • UNICODE_COLLATION.FatToStr()
      • UNICODE_COLLATION.StrToFat()
• 12 Protocols - PCI Bus Support
  • 12.1 PCI Root Bridge I/O Support
    • 12.1.1 PCI Root Bridge I/O Overview
      • 12.1.1.1 Sample PCI Architectures
  • 12.2 PCI Root Bridge I/O Protocol
    • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.PollMem()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.PollIo()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Mem.Read() EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Mem.Write()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Io.Read() EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Io.Write()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Read() EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Pci.Write()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.CopyMem()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Map()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Unmap()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.AllocateBuffer()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.FreeBuffer()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Flush()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.GetAttributes()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.SetAttributes()
      • EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL.Configuration()
    • 12.2.1 PCI Root Bridge Device Paths
  • 12.3 PCI Driver Model
    • 12.3.1 PCI Driver Initialization
      • 12.3.1.1 Driver Configuration Protocol
      • 12.3.1.2 Driver Diagnostics Protocol
      • 12.3.1.3 Component Name Protocol
    • 12.3.2 PCI Bus Drivers
      • 12.3.2.1 Driver Binding Protocol for PCI Bus Drivers
      • 12.3.2.2 PCI Enumeration
    • 12.3.3 PCI Device Drivers
      • 12.3.3.1 Driver Binding Protocol for PCI Device Drivers
  • 12.4 EFI PCI I/O Protocol
    • EFI_PCI_IO_PROTOCOL
      • EFI_PCI_IO_PROTOCOL.PollMem()
      • EFI_PCI_IO_PROTOCOL.PollIo()
      • EFI_PCI_IO_PROTOCOL.Mem.Read() EFI_PCI_IO_PROTOCOL.Mem.Write()
      • EFI_PCI_IO_PROTOCOL.Io.Read() EFI_PCI_IO_PROTOCOL.Io.Write()
      • EFI_PCI_IO_PROTOCOL.Pci.Read() EFI_PCI_IO_PROTOCOL.Pci.Write()
      • EFI_PCI_IO_PROTOCOL.CopyMem()
      • EFI_PCI_IO_PROTOCOL.Map()
      • EFI_PCI_IO_PROTOCOL.Unmap()
      • EFI_PCI_IO_PROTOCOL.AllocateBuffer()
      • EFI_PCI_IO_PROTOCOL.FreeBuffer()
      • EFI_PCI_IO_PROTOCOL.Flush()
      • EFI_PCI_IO_PROTOCOL.GetLocation()
      • EFI_PCI_IO_PROTOCOL.Attributes()
      • EFI_PCI_IO_PROTOCOL.GetBarAttributes()
      • EFI_PCI_IO_PROTOCOL.SetBarAttributes()
    • 12.4.1 PCI Device Paths
    • 12.4.2 PCI Option ROMs
      • 12.4.2.1 PCI Bus Driver Responsibilities
      • 12.4.2.2 PCI Device Driver Responsibilities
    • 12.4.3 Nonvolatile Storage
    • 12.4.4 PCI Hot-Plug Events
• 13 Protocols - SCSI Bus Support
  • 13.1 SCSI Pass Thru Protocol
    • EFI_SCSI_PASS_THRU Protocol
      • EFI_SCSI_PASS_THRU_PROTOCOL.PassThru()
      • EFI_SCSI_PASS_THRU_PROTOCOL.GetNextDevice()
      • EFI_SCSI_PASS_THRU_PROTOCOL.BuildDevicePath()
      • EFI_SCSI_PASS_THRU_PROTOCOL.GetTargetLun()
      • EFI_SCSI_PASS_THRU_PROTOCOL.ResetChannel()
      • EFI_SCSI_PASS_THRU_PROTOCOL.ResetTarget()
  • 13.2 SCSI Pass Thru Device Paths
• 14 Protocols - USB Support
  • 14.1 USB Host Controller Protocol
    • 14.1.1 USB Host Controller Protocol Overview
      • EFI_USB_HC_PROTOCOL
        • EFI_USB_HC_PROTOCOL.Reset()
        • EFI_USB_HC_PROTOCOL.GetState()
        • EFI_USB_HC_PROTOCOL.SetState()
        • EFI_USB_HC_PROTOCOL.ControlTransfer()
        • EFI_USB_HC_PROTOCOL.BulkTransfer()
        • EFI_USB_HC_PROTOCOL.AsyncInterruptTransfer()
        • EFI_USB_HC_PROTOCOL.SyncInterruptTransfer()
        • EFI_USB_HC_PROTOCOL.IsochronousTransfer()
        • EFI_USB_HC_PROTOCOL.AsyncIsochronousTransfer()
        • EFI_USB_HC_PROTOCOL.GetRootHubPortNumber()
        • EFI_USB_HC_PROTOCOL.GetRootHubPortStatus()
        • EFI_USB_HC_PROTOCOL.SetRootHubPortFeature()
        • EFI_USB_HC_PROTOCOL.ClearRootHubPortFeature()
  • 14.2 USB Driver Model
    • 14.2.1 Scope
    • 14.2.2 USB Driver Model Overview
    • 14.2.3 USB Bus Driver
      • 14.2.3.1 USB Bus Driver Entry Point
      • 14.2.3.2 Driver Binding Protocol for USB Bus Drivers
      • 14.2.3.3 USB Hot-Plug Event
      • 14.2.3.4 USB Bus Enumeration
    • 14.2.4 USB Device Driver
      • 14.2.4.1 USB Device Driver Entry Point
      • 14.2.4.2 Driver Binding Protocol for USB Device Drivers
    • 14.2.5 EFI USB I/O Protocol Overview
      • EFI_USB_IO Protocol
        • EFI_USB_IO_PROTOCOL.UsbControlTransfer()
        • EFI_USB_IO_PROTOCOL.UsbBulkTransfer()
        • EFI_USB_IO_PROTOCOL.UsbAsyncInterruptTransfer()
        • EFI_USB_IO_PROTOCOL.UsbSyncInterruptTransfer()
        • EFI_USB_IO_PROTOCOL.UsbIsochronousTransfer()
        • EFI_USB_IO_PROTOCOL.UsbAsyncIsochronousTransfer()
        • EFI_USB_IO_PROTOCOL.UsbGetDeviceDescriptor()
        • EFI_USB_IO_PROTOCOL.UsbGetConfigDescriptor()
        • EFI_USB_IO_PROTOCOL.UsbGetInterfaceDescriptor()
        • EFI_USB_IO_PROTOCOL.UsbGetEndpointDescriptor()
        • EFI_USB_IO_PROTOCOL.UsbGetStringDescriptor()
        • EFI_USB_IO_PROTOCOL.UsbGetSupportedLanguages()
        • EFI_USB_IO_PROTOCOL.UsbPortReset()
    • 14.2.6 USB Device Paths
      • 14.2.6.1 USB Device Path Node
      • 14.2.6.2 USB Device Path Example
• 15 Protocols - Network Support
  • 15.1 EFI_SIMPLE_NETWORK Protocol
    • EFI_SIMPLE_NETWORK Protocol
      • EFI_SIMPLE_NETWORK.Start()
      • EFI_SIMPLE_NETWORK.Stop()
      • EFI_SIMPLE_NETWORK.Initialize()
      • EFI_SIMPLE_NETWORK.Reset()
      • EFI_SIMPLE_NETWORK.Shutdown()
      • EFI_SIMPLE_NETWORK.ReceiveFilters()
      • EFI_SIMPLE_NETWORK.StationAddress()
      • EFI_SIMPLE_NETWORK.Statistics()
      • EFI_SIMPLE_NETWORK.MCastIPtoMAC()
      • EFI_SIMPLE_NETWORK.NvData()
      • EFI_SIMPLE_NETWORK.GetStatus()
      • EFI_SIMPLE_NETWORK.Transmit()
      • EFI_SIMPLE_NETWORK.Receive()
  • 15.2 NETWORK_INTERFACE_IDENTIFIER Protocol
    • EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL
  • 15.3 PXE Base Code Protocol
    • EFI_PXE_BASE_CODE Protocol
      • EFI_PXE_BASE_CODE.Start()
      • EFI_PXE_BASE_CODE.Stop()
      • EFI_PXE_BASE_CODE.Dhcp()
      • EFI_PXE_BASE_CODE.Discover()
      • EFI_PXE_BASE_CODE.Mtftp()
      • EFI_PXE_BASE_CODE.UdpWrite()
      • EFI_PXE_BASE_CODE.UdpRead()
      • EFI_PXE_BASE_CODE.SetIpFilter()
      • EFI_PXE_BASE_CODE.Arp()
      • EFI_PXE_BASE_CODE.SetParameters()
      • EFI_PXE_BASE_CODE.SetStationIp()
      • EFI_PXE_BASE_CODE.SetPackets()
  • 15.4 PXE Base Code Callback Protocol
    • EFI_PXE_BASE_CODE_CALLBACK Protocol
      • EFI_PXE_BASE_CODE_CALLBACK.Callback()
  • 15.5 Boot Integrity Services Protocol
    • EFI_BIS_PROTOCOL
      • EFI_BIS.Initialize()
      • EFI_BIS.Shutdown()
      • EFI_BIS.Free()
      • EFI_BIS.GetBootObjectAuthorizationCertificate()
      • EFI_BIS.GetBootObjectAuthorizationCheckFlag()
      • EFI_BIS.GetBootObjectAuthorizationUpdateToken()
      • EFI_BIS.GetSignatureInfo()
      • EFI_BIS.UpdateBootObjectAuthorization()
      • EFI_BIS.VerifyBootObject()
      • EFI_BIS.VerifyObjectWithCredential()
• 16 Protocols - Debugger Support
  • 16.1 Overview
  • 16.2 EFI Debug Support Protocol
    • 16.2.1 EFI Debug Support Protocol Overview
      • EFI_DEBUG_SUPPORT_PROTOCOL
        • EFI_DEBUG_SUPPORT_PROTOCOL.GetMaximumProcessorIndex()
        • EFI_DEBUG_SUPPORT_PROTOCOL.RegisterPeriodicCallback()
        • EFI_DEBUG_SUPPORT_PROTOCOL.RegisterExceptionCallback()
        • EFI_DEBUG_SUPPORT_PROTOCOL.InvalidateInstructionCache()
  • 16.3 EFI Debugport Protocol
    • 16.3.1 EFI Debugport Overview
      • EFI_DEBUGPORT_PROTOCOL
        • EFI_DEBUGPORT_PROTOCOL.Reset()
        • EFI_DEBUGPORT_PROTOCOL.Write()
        • EFI_DEBUGPORT_PROTOCOL.Read()
        • EFI_DEBUGPORT_PROTOCOL.Poll()
    • 16.3.2 Debugport Device Path
    • 16.3.3 EFI Debugport Variable
  • 16.4 EFI Debug Support Table
    • 16.4.1 Overview
    • 16.4.2 EFI System Table Location
    • 16.4.3 EFI Image Info
• 17 Protocols - Compression Algorithm Specification
  • 17.1 Algorithm Overview
  • 17.2 Data Format
    • 17.2.1 Bit Order
    • 17.2.2 Overall Structure
    • 17.2.3 Block Structure
      • 17.2.3.1 Block Header
      • 17.2.3.2 Block Body
  • 17.3 Compressor Design
    • 17.3.1 Overall Process
    • 17.3.2 String Info Log
      • 17.3.2.1 Data Structures
      • 17.3.2.2 Searching the Tree
      • 17.3.2.3 Adding String Info
      • 17.3.2.4 Deleting String Info
    • 17.3.3 Huffman Code Generation
      • 17.3.3.1 Huffman Tree Generation
      • 17.3.3.2 Code Length Adjustment
      • 17.3.3.3 Code Generation
  • 17.4 Decompressor Design
  • 17.5 Decompress Protocol
    • EFI_DECOMPRESS_PROTOCOL
      • EFI_DECOMPRESS_PROTOCOL.GetInfo()
      • EFI_DECOMPRESS_PROTOCOL.Decompress()
• 18 Protocols - Device I/O Protocol
  • 18.1 Device I/O Overview
  • 18.2 DEVICE_IO Protocol
    • DEVICE_IO Protocol
      • DEVICE_IO.Mem(), .Io(), and .Pci()
      • DEVICE_IO.PciDevicePath()
      • DEVICE_IO.Map()
      • DEVICE_IO.Unmap()
      • DEVICE_IO.AllocateBuffer()
      • DEVICE_IO.Flush()
      • DEVICE_IO.FreeBuffer()
• 19 EFI Byte Code Virtual Machine
  • 19.1 Overview
    • 19.1.1 Processor Architecture Independence
    • 19.1.2 OS Independent
    • 19.1.3 EFI Compliant
    • 19.1.4 Coexistence of Legacy Option ROMs
    • 19.1.5 Relocatable Image
    • 19.1.6 Size Restrictions Based on Memory Available
  • 19.2 Memory Ordering
  • 19.3 Virtual Machine Registers
  • 19.4 Natural Indexing
    • 19.4.1 Sign Bit
    • 19.4.2 Bits Assigned to Natural Units
    • 19.4.3 Constant
    • 19.4.4 Natural Units
  • 19.5 EBC Instruction Operands
    • 19.5.1 Direct Operands
    • 19.5.2 Indirect Operands
    • 19.5.3 Indirect with Index Operands
    • 19.5.4 Immediate Operands
  • 19.6 EBC Instruction Syntax
  • 19.7 Instruction Encoding
    • 19.7.1 Instruction Opcode Byte Encoding
    • 19.7.2 Instruction Operands Byte Encoding
    • 19.7.3 Index/Immediate Data Encoding
  • 19.8 EBC Instruction Set
    • ADD
    • AND
    • ASHR
    • BREAK
    • CALL
    • CMP
    • CMPI
    • DIV
    • DIVU
    • EXTNDB
    • EXTNDD
    • EXTNDW
    • JMP
    • JMP8
    • MOD
    • MODU
    • MOV
    • MOVI
    • MOVIn
    • MOVn
    • MOVREL
    • MOVsn
    • MUL
    • MULU
    • NEG
    • NOT
    • OR
    • POP
    • POPn
    • PUSH
    • PUSHn
    • RET
    • SHL
    • SHR
    • STORESP
    • SUB
    • XOR
  • 19.9 Runtime and Software Conventions
    • 19.9.1 Calling Outside VM
    • 19.9.2 Calling Inside VM
    • 19.9.3 Parameter Passing
    • 19.9.4 Return Values
    • 19.9.5 Binary Format
  • 19.10 Architectural Requirements
    • 19.10.1 EBC Image Requirements
    • 19.10.2 EBC Execution Interfacing Requirements
    • 19.10.3 Interfacing Function Parameters Requirements
    • 19.10.4 Function Return Requirements
    • 19.10.5 Function Return Values Requirements
  • 19.11 EBC Interpreter Protocol
    • EFI_EBC_PROTOCOL
      • EFI_EBC_PROTOCOL.CreateThunk()
      • EFI_EBC_PROTOCOL.UnloadImage()
      • EFI_EBC_PROTOCOL.RegisterICacheFlush()
      • EFI_EBC_PROTOCOL.GetVersion()
  • 19.12 EBC Tools
    • 19.12.1 EBC C Compiler
    • 19.12.2 C Coding Convention
    • 19.12.3 EBC Interface Assembly Instructions
    • 19.12.4 Stack Maintenance and Argument Passing
    • 19.12.5 Native to EBC Arguments Calling Convention
    • 19.12.6 EBC to Native Arguments Calling Convention
    • 19.12.7 EBC to EBC Arguments Calling Convention
    • 19.12.8 Function Returns
    • 19.12.9 Function Return Values
    • 19.12.10 Thunking
      • 19.12.10.1 Thunking EBC to Native Code
      • 19.12.10.2 Thunking Native Code to EBC
      • 19.12.10.3 Thunking EBC to EBC
    • 19.12.11 EBC Linker
    • 19.12.12 Image Loader
    • 19.12.13 Debug Support
  • 19.13 VM Exception Handling
    • 19.13.1 Divide By 0 Exception
    • 19.13.2 Debug Break Exception
    • 19.13.3 Invalid Opcode Exception
    • 19.13.4 Stack Fault Exception
    • 19.13.5 Alignment Exception
    • 19.13.6 Instruction Encoding Exception
    • 19.13.7 Bad Break Exception
    • 19.13.8 Undefined Exception
  • 19.14 Option ROM Formats
    • 19.14.1 EFI Drivers for PCI Add-in Cards
    • 19.14.2 Non-PCI Bus Support
• Appendix A GUID and Time Formats
• Appendix B Console
  • B.1 SIMPLE_INPUT
  • B.2 SIMPLE_TEXT_OUTPUT
• Appendix C Device Path Examples
  • C.1 Example Computer System
  • C.2 Legacy Floppy
  • C.3 IDE Disk
  • C.4 Secondary Root PCI Bus with PCI to PCI Bridge
  • C.5 ACPI Terms
  • C.6 EFI Device Path as a Name Space
• Appendix D Status Codes
• Appendix E 32/64-Bit UNDI Specification
  • E.1 Introduction
    • E.1.1 Definitions
    • E.1.2 Referenced Specifications
    • E.1.3 OS Network Stacks
  • E.2 Overview
    • E.2.1 32/64-bit UNDI Interface
    • E.2.2 UNDI Command Format
  • E.3 UNDI C Definitions
    • E.3.1 Portability Macros
    • E.3.2 Miscellaneous Macros
    • E.3.3 Portability Types
    • E.3.4 Simple Types
    • E.3.5 Compound Types
  • E.4 UNDI Commands
    • E.4.1 Command Linking and Queuing
    • E.4.2 Get State
    • E.4.3 Start
    • E.4.4 Stop
    • E.4.5 Get Init Info
    • E.4.6 Get Config Info
    • E.4.7 Initialize
    • E.4.8 Reset
    • E.4.9 Shutdown
    • E.4.10 Interrupt Enables
    • E.4.11 Receive Filters
    • E.4.12 Station Address
    • E.4.13 Statistics
    • E.4.14 MCast IP To MAC
    • E.4.15 NvData
    • E.4.16 Get Status
    • E.4.17 Fill Header
    • E.4.18 Transmit
    • E.4.19 Receive
  • E.5 UNDI as an EFI Runtime Driver
• Appendix F Using the Simple Pointer Protocol
• Appendix G Using the EFI SCSI Pass Thru Protocol
• Appendix H Compression Source Code
• Appendix I Decompression Source Code
• Appendix J EFI Byte Code Virtual Machine Opcode Summary
• Appendix K Alphabetic Function Lists
• References
• Glossary
• Index