Data Structures
struct	EFI_MEMORY_DESCRIPTOR

struct	EFI_TIME_CAPABILITIES

struct	EFI_OPEN_PROTOCOL_INFORMATION_ENTRY

struct	EFI_CAPSULE_BLOCK_DESCRIPTOR

struct	EFI_CAPSULE_HEADER

struct	EFI_CAPSULE_TABLE

struct	EFI_RUNTIME_SERVICES

struct	EFI_BOOT_SERVICES

struct	EFI_CONFIGURATION_TABLE

struct	EFI_SYSTEM_TABLE

struct	_EFI_LOAD_OPTION

union	EFI_BOOT_KEY_DATA

struct	EFI_KEY_OPTION

Macros
#define	EFI_TIME_ADJUST_DAYLIGHT 0x01

#define	EFI_TIME_IN_DAYLIGHT 0x02

#define	EFI_UNSPECIFIED_TIMEZONE 0x07FF

#define	EFI_MEMORY_UC 0x0000000000000001ULL

#define	EFI_MEMORY_WC 0x0000000000000002ULL

#define	EFI_MEMORY_WT 0x0000000000000004ULL

#define	EFI_MEMORY_WB 0x0000000000000008ULL

#define	EFI_MEMORY_UCE 0x0000000000000010ULL

#define	EFI_MEMORY_WP 0x0000000000001000ULL

#define	EFI_MEMORY_RP 0x0000000000002000ULL

#define	EFI_MEMORY_XP 0x0000000000004000ULL

#define	EFI_MEMORY_RO 0x0000000000020000ULL

#define	EFI_MEMORY_NV 0x0000000000008000ULL

#define	EFI_MEMORY_MORE_RELIABLE 0x0000000000010000ULL

#define	EFI_MEMORY_SP 0x0000000000040000ULL

#define	EFI_MEMORY_CPU_CRYPTO 0x0000000000080000ULL

#define	EFI_MEMORY_RUNTIME 0x8000000000000000ULL

#define	EFI_CACHE_ATTRIBUTE_MASK (EFI_MEMORY_UC \| EFI_MEMORY_WC \| EFI_MEMORY_WT \| EFI_MEMORY_WB \| EFI_MEMORY_UCE \| EFI_MEMORY_WP)

#define	EFI_MEMORY_ACCESS_MASK (EFI_MEMORY_RP \| EFI_MEMORY_XP \| EFI_MEMORY_RO)

#define	EFI_MEMORY_ATTRIBUTE_MASK (EFI_MEMORY_ACCESS_MASK \| EFI_MEMORY_SP \| EFI_MEMORY_CPU_CRYPTO)

#define	EFI_MEMORY_DESCRIPTOR_VERSION 1

#define	EFI_OPTIONAL_PTR 0x00000001

#define	EVT_TIMER 0x80000000

#define	EVT_RUNTIME 0x40000000

#define	EVT_NOTIFY_WAIT 0x00000100

#define	EVT_NOTIFY_SIGNAL 0x00000200

#define	EVT_SIGNAL_EXIT_BOOT_SERVICES 0x00000201

#define	EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE 0x60000202

#define	EVT_RUNTIME_CONTEXT 0x20000000

#define	TPL_APPLICATION 4

#define	TPL_CALLBACK 8

#define	TPL_NOTIFY 16

#define	TPL_HIGH_LEVEL 31

#define	EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL 0x00000001

#define	EFI_OPEN_PROTOCOL_GET_PROTOCOL 0x00000002

#define	EFI_OPEN_PROTOCOL_TEST_PROTOCOL 0x00000004

#define	EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008

#define	EFI_OPEN_PROTOCOL_BY_DRIVER 0x00000010

#define	EFI_OPEN_PROTOCOL_EXCLUSIVE 0x00000020

#define	CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000

#define	CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE 0x00020000

#define	CAPSULE_FLAGS_INITIATE_RESET 0x00040000

#define	EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001

#define	EFI_OS_INDICATIONS_TIMESTAMP_REVOCATION 0x0000000000000002

#define	EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED 0x0000000000000004

#define	EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED 0x0000000000000008

#define	EFI_OS_INDICATIONS_CAPSULE_RESULT_VAR_SUPPORTED 0x0000000000000010

#define	EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY 0x0000000000000040

#define	EFI_OS_INDICATIONS_JSON_CONFIG_DATA_REFRESH 0x0000000000000080

#define	EFI_SYSTEM_TABLE_SIGNATURE SIGNATURE_64 ('I','B','I',' ','S','Y','S','T')

#define	EFI_2_80_SYSTEM_TABLE_REVISION ((2 << 16) \| (80))

#define	EFI_2_70_SYSTEM_TABLE_REVISION ((2 << 16) \| (70))

#define	EFI_2_60_SYSTEM_TABLE_REVISION ((2 << 16) \| (60))

#define	EFI_2_50_SYSTEM_TABLE_REVISION ((2 << 16) \| (50))

#define	EFI_2_40_SYSTEM_TABLE_REVISION ((2 << 16) \| (40))

#define	EFI_2_31_SYSTEM_TABLE_REVISION ((2 << 16) \| (31))

#define	EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) \| (30))

#define	EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) \| (20))

#define	EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) \| (10))

#define	EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) \| (00))

#define	EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) \| (10))

#define	EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) \| (02))

#define	EFI_SYSTEM_TABLE_REVISION EFI_2_70_SYSTEM_TABLE_REVISION

#define	EFI_SPECIFICATION_VERSION EFI_SYSTEM_TABLE_REVISION

#define	EFI_RUNTIME_SERVICES_SIGNATURE SIGNATURE_64 ('R','U','N','T','S','E','R','V')

#define	EFI_RUNTIME_SERVICES_REVISION EFI_SPECIFICATION_VERSION

#define	EFI_BOOT_SERVICES_SIGNATURE SIGNATURE_64 ('B','O','O','T','S','E','R','V')

#define	EFI_BOOT_SERVICES_REVISION EFI_SPECIFICATION_VERSION

#define	LOAD_OPTION_ACTIVE 0x00000001

#define	LOAD_OPTION_FORCE_RECONNECT 0x00000002

#define	LOAD_OPTION_HIDDEN 0x00000008

#define	LOAD_OPTION_CATEGORY 0x00001F00

#define	LOAD_OPTION_CATEGORY_BOOT 0x00000000

#define	LOAD_OPTION_CATEGORY_APP 0x00000100

#define	EFI_BOOT_OPTION_SUPPORT_KEY 0x00000001

#define	EFI_BOOT_OPTION_SUPPORT_APP 0x00000002

#define	EFI_BOOT_OPTION_SUPPORT_SYSPREP 0x00000010

#define	EFI_BOOT_OPTION_SUPPORT_COUNT 0x00000300

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_IA32 L"\\EFI\\BOOT\\BOOTIA32.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_IA64 L"\\EFI\\BOOT\\BOOTIA64.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_X64 L"\\EFI\\BOOT\\BOOTX64.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_ARM L"\\EFI\\BOOT\\BOOTARM.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64 L"\\EFI\\BOOT\\BOOTAA64.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME_RISCV64 L"\\EFI\\BOOT\\BOOTRISCV64.EFI"

#define	EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_IA32

#define	EFI_CAPSULE_FILE_DIRECTORY L"\\EFI\\UpdateCapsule\\"

Typedefs
typedef EFI_STATUS(EFIAPI *	EFI_ALLOCATE_PAGES )(IN EFI_ALLOCATE_TYPE Type, IN EFI_MEMORY_TYPE MemoryType, IN UINTN Pages, IN OUT EFI_PHYSICAL_ADDRESS *Memory)

typedef EFI_STATUS(EFIAPI *	EFI_FREE_PAGES )(IN EFI_PHYSICAL_ADDRESS Memory, IN UINTN Pages)

typedef EFI_STATUS(EFIAPI *	EFI_GET_MEMORY_MAP )(IN OUT UINTN MemoryMapSize, OUT EFI_MEMORY_DESCRIPTOR MemoryMap, OUT UINTN MapKey, OUT UINTN DescriptorSize, OUT UINT32 *DescriptorVersion)

typedef EFI_STATUS(EFIAPI *	EFI_ALLOCATE_POOL )(IN EFI_MEMORY_TYPE PoolType, IN UINTN Size, OUT VOID **Buffer)

typedef EFI_STATUS(EFIAPI *	EFI_FREE_POOL )(IN VOID *Buffer)

typedef EFI_STATUS(EFIAPI *	EFI_SET_VIRTUAL_ADDRESS_MAP )(IN UINTN MemoryMapSize, IN UINTN DescriptorSize, IN UINT32 DescriptorVersion, IN EFI_MEMORY_DESCRIPTOR *VirtualMap)

typedef EFI_STATUS(EFIAPI *	EFI_CONNECT_CONTROLLER )(IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE DriverImageHandle, IN EFI_DEVICE_PATH_PROTOCOL RemainingDevicePath, IN BOOLEAN Recursive)

typedef EFI_STATUS(EFIAPI *	EFI_DISCONNECT_CONTROLLER )(IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE DriverImageHandle, IN EFI_HANDLE ChildHandle)

typedef EFI_STATUS(EFIAPI *	EFI_CONVERT_POINTER )(IN UINTN DebugDisposition, IN OUT VOID **Address)

typedef VOID(EFIAPI *	EFI_EVENT_NOTIFY )(IN EFI_EVENT Event, IN VOID *Context)

typedef EFI_STATUS(EFIAPI *	EFI_CREATE_EVENT )(IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, IN VOID NotifyContext, OUT EFI_EVENT Event)

typedef EFI_STATUS(EFIAPI *	EFI_CREATE_EVENT_EX )(IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, IN CONST VOID NotifyContext, IN CONST EFI_GUID EventGroup, OUT EFI_EVENT *Event)

typedef EFI_STATUS(EFIAPI *	EFI_SET_TIMER )(IN EFI_EVENT Event, IN EFI_TIMER_DELAY Type, IN UINT64 TriggerTime)

typedef EFI_STATUS(EFIAPI *	EFI_SIGNAL_EVENT )(IN EFI_EVENT Event)

typedef EFI_STATUS(EFIAPI *	EFI_WAIT_FOR_EVENT )(IN UINTN NumberOfEvents, IN EFI_EVENT Event, OUT UINTN Index)

typedef EFI_STATUS(EFIAPI *	EFI_CLOSE_EVENT )(IN EFI_EVENT Event)

typedef EFI_STATUS(EFIAPI *	EFI_CHECK_EVENT )(IN EFI_EVENT Event)

typedef EFI_TPL(EFIAPI *	EFI_RAISE_TPL )(IN EFI_TPL NewTpl)

typedef VOID(EFIAPI *	EFI_RESTORE_TPL )(IN EFI_TPL OldTpl)

typedef EFI_STATUS(EFIAPI *	EFI_GET_VARIABLE )(IN CHAR16 VariableName, IN EFI_GUID VendorGuid, OUT UINT32 Attributes, IN OUT UINTN DataSize, OUT VOID *Data)

typedef EFI_STATUS(EFIAPI *	EFI_GET_NEXT_VARIABLE_NAME )(IN OUT UINTN VariableNameSize, IN OUT CHAR16 VariableName, IN OUT EFI_GUID *VendorGuid)

typedef EFI_STATUS(EFIAPI *	EFI_SET_VARIABLE )(IN CHAR16 VariableName, IN EFI_GUID VendorGuid, IN UINT32 Attributes, IN UINTN DataSize, IN VOID *Data)

typedef EFI_STATUS(EFIAPI *	EFI_GET_TIME )(OUT EFI_TIME Time, OUT EFI_TIME_CAPABILITIES Capabilities)

typedef EFI_STATUS(EFIAPI *	EFI_SET_TIME )(IN EFI_TIME *Time)

typedef EFI_STATUS(EFIAPI *	EFI_GET_WAKEUP_TIME )(OUT BOOLEAN Enabled, OUT BOOLEAN Pending, OUT EFI_TIME *Time)

typedef EFI_STATUS(EFIAPI *	EFI_SET_WAKEUP_TIME )(IN BOOLEAN Enable, IN EFI_TIME *Time)

typedef EFI_STATUS(EFIAPI *	EFI_IMAGE_LOAD )(IN BOOLEAN BootPolicy, IN EFI_HANDLE ParentImageHandle, IN EFI_DEVICE_PATH_PROTOCOL DevicePath, IN VOID SourceBuffer, IN UINTN SourceSize, OUT EFI_HANDLE *ImageHandle)

typedef EFI_STATUS(EFIAPI *	EFI_IMAGE_START )(IN EFI_HANDLE ImageHandle, OUT UINTN ExitDataSize, OUT CHAR16 *ExitData)

typedef EFI_STATUS(EFIAPI *	EFI_EXIT )(IN EFI_HANDLE ImageHandle, IN EFI_STATUS ExitStatus, IN UINTN ExitDataSize, IN CHAR16 *ExitData)

typedef EFI_STATUS(EFIAPI *	EFI_IMAGE_UNLOAD )(IN EFI_HANDLE ImageHandle)

typedef EFI_STATUS(EFIAPI *	EFI_EXIT_BOOT_SERVICES )(IN EFI_HANDLE ImageHandle, IN UINTN MapKey)

typedef EFI_STATUS(EFIAPI *	EFI_STALL )(IN UINTN Microseconds)

typedef EFI_STATUS(EFIAPI *	EFI_SET_WATCHDOG_TIMER )(IN UINTN Timeout, IN UINT64 WatchdogCode, IN UINTN DataSize, IN CHAR16 *WatchdogData)

typedef VOID(EFIAPI *	EFI_RESET_SYSTEM )(IN EFI_RESET_TYPE ResetType, IN EFI_STATUS ResetStatus, IN UINTN DataSize, IN VOID *ResetData)

typedef EFI_STATUS(EFIAPI *	EFI_GET_NEXT_MONOTONIC_COUNT )(OUT UINT64 *Count)

typedef EFI_STATUS(EFIAPI *	EFI_GET_NEXT_HIGH_MONO_COUNT )(OUT UINT32 *HighCount)

typedef EFI_STATUS(EFIAPI *	EFI_CALCULATE_CRC32 )(IN VOID Data, IN UINTN DataSize, OUT UINT32 Crc32)

typedef VOID(EFIAPI *	EFI_COPY_MEM )(IN VOID Destination, IN VOID Source, IN UINTN Length)

typedef VOID(EFIAPI *	EFI_SET_MEM )(IN VOID *Buffer, IN UINTN Size, IN UINT8 Value)

typedef EFI_STATUS(EFIAPI *	EFI_INSTALL_PROTOCOL_INTERFACE )(IN OUT EFI_HANDLE Handle, IN EFI_GUID Protocol, IN EFI_INTERFACE_TYPE InterfaceType, IN VOID *Interface)

typedef EFI_STATUS(EFIAPI *	EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES )(IN OUT EFI_HANDLE *Handle,...)

typedef EFI_STATUS(EFIAPI *	EFI_REINSTALL_PROTOCOL_INTERFACE )(IN EFI_HANDLE Handle, IN EFI_GUID Protocol, IN VOID OldInterface, IN VOID *NewInterface)

typedef EFI_STATUS(EFIAPI *	EFI_UNINSTALL_PROTOCOL_INTERFACE )(IN EFI_HANDLE Handle, IN EFI_GUID Protocol, IN VOID Interface)

typedef EFI_STATUS(EFIAPI *	EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES )(IN EFI_HANDLE Handle,...)

typedef EFI_STATUS(EFIAPI *	EFI_HANDLE_PROTOCOL )(IN EFI_HANDLE Handle, IN EFI_GUID Protocol, OUT VOID *Interface)

typedef EFI_STATUS(EFIAPI *	EFI_OPEN_PROTOCOL )(IN EFI_HANDLE Handle, IN EFI_GUID Protocol, OUT VOID *Interface, IN EFI_HANDLE AgentHandle, IN EFI_HANDLE ControllerHandle, IN UINT32 Attributes)

typedef EFI_STATUS(EFIAPI *	EFI_CLOSE_PROTOCOL )(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, IN EFI_HANDLE AgentHandle, IN EFI_HANDLE ControllerHandle)

typedef EFI_STATUS(EFIAPI *	EFI_OPEN_PROTOCOL_INFORMATION )(IN EFI_HANDLE Handle, IN EFI_GUID Protocol, OUT EFI_OPEN_PROTOCOL_INFORMATION_ENTRY EntryBuffer, OUT UINTN EntryCount)

typedef EFI_STATUS(EFIAPI *	EFI_PROTOCOLS_PER_HANDLE )(IN EFI_HANDLE Handle, OUT EFI_GUID **ProtocolBuffer, OUT UINTN ProtocolBufferCount)

typedef EFI_STATUS(EFIAPI *	EFI_REGISTER_PROTOCOL_NOTIFY )(IN EFI_GUID Protocol, IN EFI_EVENT Event, OUT VOID *Registration)

typedef EFI_STATUS(EFIAPI *	EFI_LOCATE_HANDLE )(IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID Protocol, IN VOID SearchKey, IN OUT UINTN BufferSize, OUT EFI_HANDLE Buffer)

typedef EFI_STATUS(EFIAPI *	EFI_LOCATE_DEVICE_PATH )(IN EFI_GUID Protocol, IN OUT EFI_DEVICE_PATH_PROTOCOL DevicePath, OUT EFI_HANDLE Device)

typedef EFI_STATUS(EFIAPI *	EFI_INSTALL_CONFIGURATION_TABLE )(IN EFI_GUID Guid, IN VOID Table)

typedef EFI_STATUS(EFIAPI *	EFI_LOCATE_HANDLE_BUFFER )(IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID Protocol, IN VOID SearchKey, OUT UINTN NoHandles, OUT EFI_HANDLE *Buffer)

typedef EFI_STATUS(EFIAPI *	EFI_LOCATE_PROTOCOL )(IN EFI_GUID Protocol, IN VOID Registration, OUT VOID **Interface)

typedef EFI_STATUS(EFIAPI *	EFI_UPDATE_CAPSULE )(IN EFI_CAPSULE_HEADER **CapsuleHeaderArray, IN UINTN CapsuleCount, IN EFI_PHYSICAL_ADDRESS ScatterGatherList)

typedef EFI_STATUS(EFIAPI *	EFI_QUERY_CAPSULE_CAPABILITIES )(IN EFI_CAPSULE_HEADER *CapsuleHeaderArray, IN UINTN CapsuleCount, OUT UINT64 MaximumCapsuleSize, OUT EFI_RESET_TYPE *ResetType)

typedef EFI_STATUS(EFIAPI *	EFI_QUERY_VARIABLE_INFO )(IN UINT32 Attributes, OUT UINT64 MaximumVariableStorageSize, OUT UINT64 RemainingVariableStorageSize, OUT UINT64 *MaximumVariableSize)

typedef EFI_STATUS(EFIAPI *	EFI_IMAGE_ENTRY_POINT )(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

typedef struct _EFI_LOAD_OPTION	EFI_LOAD_OPTION

Enumerations
enum	EFI_ALLOCATE_TYPE { AllocateAnyPages, AllocateMaxAddress, AllocateAddress, MaxAllocateType }

enum	EFI_TIMER_DELAY { TimerCancel, TimerPeriodic, TimerRelative }

enum	EFI_INTERFACE_TYPE { EFI_NATIVE_INTERFACE }

enum	EFI_LOCATE_SEARCH_TYPE { AllHandles, ByRegisterNotify, ByProtocol }

Detailed Description

Include file that supports UEFI.

This include file must contain things defined in the UEFI 2.7 specification. If a code construct is defined in the UEFI 2.7 specification it must be included by this include file.

SPDX-License-Identifier: BSD-2-Clause-Patent

Macro Definition Documentation

#define CAPSULE_FLAGS_INITIATE_RESET 0x00040000

#define CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000

#define CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE 0x00020000

#define EFI_1_02_SYSTEM_TABLE_REVISION ((1 << 16) | (02))

#define EFI_1_10_SYSTEM_TABLE_REVISION ((1 << 16) | (10))

#define EFI_2_00_SYSTEM_TABLE_REVISION ((2 << 16) | (00))

#define EFI_2_10_SYSTEM_TABLE_REVISION ((2 << 16) | (10))

#define EFI_2_20_SYSTEM_TABLE_REVISION ((2 << 16) | (20))

#define EFI_2_30_SYSTEM_TABLE_REVISION ((2 << 16) | (30))

#define EFI_2_31_SYSTEM_TABLE_REVISION ((2 << 16) | (31))

#define EFI_2_40_SYSTEM_TABLE_REVISION ((2 << 16) | (40))

#define EFI_2_50_SYSTEM_TABLE_REVISION ((2 << 16) | (50))

#define EFI_2_60_SYSTEM_TABLE_REVISION ((2 << 16) | (60))

#define EFI_2_70_SYSTEM_TABLE_REVISION ((2 << 16) | (70))

#define EFI_2_80_SYSTEM_TABLE_REVISION ((2 << 16) | (80))

#define EFI_BOOT_OPTION_SUPPORT_APP 0x00000002

#define EFI_BOOT_OPTION_SUPPORT_COUNT 0x00000300

#define EFI_BOOT_OPTION_SUPPORT_KEY 0x00000001

#define EFI_BOOT_OPTION_SUPPORT_SYSPREP 0x00000010

#define EFI_BOOT_SERVICES_REVISION EFI_SPECIFICATION_VERSION

#define EFI_BOOT_SERVICES_SIGNATURE SIGNATURE_64 ('B','O','O','T','S','E','R','V')

#define EFI_CAPSULE_FILE_DIRECTORY L"\\EFI\\UpdateCapsule\\"

#define EFI_MEMORY_ACCESS_MASK (EFI_MEMORY_RP | EFI_MEMORY_XP | EFI_MEMORY_RO)

#define EFI_MEMORY_ATTRIBUTE_MASK (EFI_MEMORY_ACCESS_MASK | EFI_MEMORY_SP | EFI_MEMORY_CPU_CRYPTO)

#define EFI_MEMORY_CPU_CRYPTO 0x0000000000080000ULL

#define EFI_MEMORY_DESCRIPTOR_VERSION 1

Memory descriptor version number.

#define EFI_MEMORY_MORE_RELIABLE 0x0000000000010000ULL

#define EFI_MEMORY_NV 0x0000000000008000ULL

#define EFI_MEMORY_RO 0x0000000000020000ULL

#define EFI_MEMORY_RP 0x0000000000002000ULL

#define EFI_MEMORY_RUNTIME 0x8000000000000000ULL

#define EFI_MEMORY_SP 0x0000000000040000ULL

#define EFI_MEMORY_UC 0x0000000000000001ULL

#define EFI_MEMORY_UCE 0x0000000000000010ULL

#define EFI_MEMORY_WB 0x0000000000000008ULL

#define EFI_MEMORY_WC 0x0000000000000002ULL

#define EFI_MEMORY_WP 0x0000000000001000ULL

#define EFI_MEMORY_WT 0x0000000000000004ULL

#define EFI_MEMORY_XP 0x0000000000004000ULL

#define EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER 0x00000008

#define EFI_OPEN_PROTOCOL_BY_DRIVER 0x00000010

#define EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL 0x00000001

#define EFI_OPEN_PROTOCOL_EXCLUSIVE 0x00000020

#define EFI_OPEN_PROTOCOL_GET_PROTOCOL 0x00000002

#define EFI_OPEN_PROTOCOL_TEST_PROTOCOL 0x00000004

#define EFI_OPTIONAL_PTR 0x00000001

#define EFI_OS_INDICATIONS_BOOT_TO_FW_UI 0x0000000000000001

#define EFI_OS_INDICATIONS_CAPSULE_RESULT_VAR_SUPPORTED 0x0000000000000010

#define EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED 0x0000000000000004

#define EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED 0x0000000000000008

#define EFI_OS_INDICATIONS_JSON_CONFIG_DATA_REFRESH 0x0000000000000080

#define EFI_OS_INDICATIONS_START_PLATFORM_RECOVERY 0x0000000000000040

#define EFI_OS_INDICATIONS_TIMESTAMP_REVOCATION 0x0000000000000002

#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_IA32

#define EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64 L"\\EFI\\BOOT\\BOOTAA64.EFI"

#define EFI_REMOVABLE_MEDIA_FILE_NAME_ARM L"\\EFI\\BOOT\\BOOTARM.EFI"

#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA32 L"\\EFI\\BOOT\\BOOTIA32.EFI"

#define EFI_REMOVABLE_MEDIA_FILE_NAME_IA64 L"\\EFI\\BOOT\\BOOTIA64.EFI"

#define EFI_REMOVABLE_MEDIA_FILE_NAME_RISCV64 L"\\EFI\\BOOT\\BOOTRISCV64.EFI"

#define EFI_REMOVABLE_MEDIA_FILE_NAME_X64 L"\\EFI\\BOOT\\BOOTX64.EFI"

#define EFI_RUNTIME_SERVICES_REVISION EFI_SPECIFICATION_VERSION

#define EFI_RUNTIME_SERVICES_SIGNATURE SIGNATURE_64 ('R','U','N','T','S','E','R','V')

#define EFI_SPECIFICATION_VERSION EFI_SYSTEM_TABLE_REVISION

#define EFI_SYSTEM_TABLE_REVISION EFI_2_70_SYSTEM_TABLE_REVISION

#define EFI_SYSTEM_TABLE_SIGNATURE SIGNATURE_64 ('I','B','I',' ','S','Y','S','T')

#define EFI_TIME_ADJUST_DAYLIGHT 0x01

#define EFI_TIME_IN_DAYLIGHT 0x02

#define EFI_UNSPECIFIED_TIMEZONE 0x07FF

Value definition for EFI_TIME.TimeZone.

#define EVT_NOTIFY_SIGNAL 0x00000200

#define EVT_NOTIFY_WAIT 0x00000100

#define EVT_RUNTIME 0x40000000

#define EVT_RUNTIME_CONTEXT 0x20000000

#define EVT_SIGNAL_EXIT_BOOT_SERVICES 0x00000201

#define EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE 0x60000202

#define EVT_TIMER 0x80000000

#define LOAD_OPTION_ACTIVE 0x00000001

#define LOAD_OPTION_CATEGORY 0x00001F00

#define LOAD_OPTION_CATEGORY_APP 0x00000100

#define LOAD_OPTION_CATEGORY_BOOT 0x00000000

#define LOAD_OPTION_FORCE_RECONNECT 0x00000002

#define LOAD_OPTION_HIDDEN 0x00000008

#define TPL_APPLICATION 4

#define TPL_CALLBACK 8

#define TPL_HIGH_LEVEL 31

#define TPL_NOTIFY 16

Typedef Documentation

typedef EFI_STATUS(EFIAPI * EFI_ALLOCATE_PAGES)(IN EFI_ALLOCATE_TYPE Type, IN EFI_MEMORY_TYPE MemoryType, IN UINTN Pages, IN OUT EFI_PHYSICAL_ADDRESS *Memory)

Allocates memory pages from the system.

Parameters

[in]	Type	The type of allocation to perform.
[in]	MemoryType	The type of memory to allocate. MemoryType values in the range 0x70000000..0x7FFFFFFF are reserved for OEM use. MemoryType values in the range 0x80000000..0xFFFFFFFF are reserved for use by UEFI OS loaders that are provided by operating system vendors.
[in]	Pages	The number of contiguous 4 KB pages to allocate.
[in,out]	Memory	The pointer to a physical address. On input, the way in which the address is used depends on the value of Type.

Return values

EFI_SUCCESS	The requested pages were allocated.
EFI_INVALID_PARAMETER	1) Type is not AllocateAnyPages or AllocateMaxAddress or AllocateAddress. 2) MemoryType is in the range EfiMaxMemoryType..0x6FFFFFFF. 3) Memory is NULL. 4) MemoryType is EfiPersistentMemory.
EFI_OUT_OF_RESOURCES	The pages could not be allocated.
EFI_NOT_FOUND	The requested pages could not be found.

typedef EFI_STATUS(EFIAPI * EFI_ALLOCATE_POOL)(IN EFI_MEMORY_TYPE PoolType, IN UINTN Size, OUT VOID **Buffer)

Allocates pool memory.

Parameters

[in]	PoolType	The type of pool to allocate. MemoryType values in the range 0x70000000..0x7FFFFFFF are reserved for OEM use. MemoryType values in the range 0x80000000..0xFFFFFFFF are reserved for use by UEFI OS loaders that are provided by operating system vendors.
[in]	Size	The number of bytes to allocate from the pool.
[out]	Buffer	A pointer to a pointer to the allocated buffer if the call succeeds; undefined otherwise.

Return values

EFI_SUCCESS	The requested number of bytes was allocated.
EFI_OUT_OF_RESOURCES	The pool requested could not be allocated.
EFI_INVALID_PARAMETER	Buffer is NULL. PoolType is in the range EfiMaxMemoryType..0x6FFFFFFF. PoolType is EfiPersistentMemory.

typedef EFI_STATUS(EFIAPI * EFI_CALCULATE_CRC32)(IN VOID *Data, IN UINTN DataSize, OUT UINT32 *Crc32)

Computes and returns a 32-bit CRC for a data buffer.

Parameters

[in]	Data	A pointer to the buffer on which the 32-bit CRC is to be computed.
[in]	DataSize	The number of bytes in the buffer Data.
[out]	Crc32	The 32-bit CRC that was computed for the data buffer specified by Data and DataSize.

Return values

EFI_SUCCESS	The 32-bit CRC was computed for the data buffer and returned in Crc32.
EFI_INVALID_PARAMETER	Data is NULL.
EFI_INVALID_PARAMETER	Crc32 is NULL.
EFI_INVALID_PARAMETER	DataSize is 0.

typedef EFI_STATUS(EFIAPI * EFI_CHECK_EVENT)(IN EFI_EVENT Event)

Checks whether an event is in the signaled state.

Parameters

[in] Event The event to check.

Return values

EFI_SUCCESS	The event is in the signaled state.
EFI_NOT_READY	The event is not in the signaled state.
EFI_INVALID_PARAMETER	Event is of type EVT_NOTIFY_SIGNAL.

typedef EFI_STATUS(EFIAPI * EFI_CLOSE_EVENT)(IN EFI_EVENT Event)

Closes an event.

Parameters

[in] Event The event to close.

Return values

EFI_SUCCESS The event has been closed.

typedef EFI_STATUS(EFIAPI * EFI_CLOSE_PROTOCOL)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, IN EFI_HANDLE AgentHandle, IN EFI_HANDLE ControllerHandle)

Closes a protocol on a handle that was opened using OpenProtocol().

Parameters

[in]	Handle	The handle for the protocol interface that was previously opened with OpenProtocol(), and is now being closed.
[in]	Protocol	The published unique identifier of the protocol.
[in]	AgentHandle	The handle of the agent that is closing the protocol interface.
[in]	ControllerHandle	If the agent that opened a protocol is a driver that follows the UEFI Driver Model, then this parameter is the controller handle that required the protocol interface.

Return values

EFI_SUCCESS	The protocol instance was closed.
EFI_INVALID_PARAMETER	1) Handle is NULL. 2) AgentHandle is NULL. 3) ControllerHandle is not NULL and ControllerHandle is not a valid EFI_HANDLE. 4) Protocol is NULL.
EFI_NOT_FOUND	1) Handle does not support the protocol specified by Protocol. 2) The protocol interface specified by Handle and Protocol is not currently open by AgentHandle and ControllerHandle.

typedef EFI_STATUS(EFIAPI * EFI_CONNECT_CONTROLLER)(IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE *DriverImageHandle, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath, IN BOOLEAN Recursive)

Connects one or more drivers to a controller.

Parameters

[in]	ControllerHandle	The handle of the controller to which driver(s) are to be connected.
[in]	DriverImageHandle	A pointer to an ordered list handles that support the EFI_DRIVER_BINDING_PROTOCOL.
[in]	RemainingDevicePath	A pointer to the device path that specifies a child of the controller specified by ControllerHandle.
[in]	Recursive	If TRUE, then ConnectController() is called recursively until the entire tree of controllers below the controller specified by ControllerHandle have been created. If FALSE, then the tree of controllers is only expanded one level.

Return values

EFI_SUCCESS	1) One or more drivers were connected to ControllerHandle. 2) No drivers were connected to ControllerHandle, but RemainingDevicePath is not NULL, and it is an End Device Path Node.
EFI_INVALID_PARAMETER	ControllerHandle is NULL.
EFI_NOT_FOUND	1) There are no EFI_DRIVER_BINDING_PROTOCOL instances present in the system. 2) No drivers were connected to ControllerHandle.
EFI_SECURITY_VIOLATION	The user has no permission to start UEFI device drivers on the device path associated with the ControllerHandle or specified by the RemainingDevicePath.

typedef EFI_STATUS(EFIAPI * EFI_CONVERT_POINTER)(IN UINTN DebugDisposition, IN OUT VOID **Address)

Determines the new virtual address that is to be used on subsequent memory accesses.

Parameters

[in]	DebugDisposition	Supplies type information for the pointer being converted.
[in,out]	Address	A pointer to a pointer that is to be fixed to be the value needed for the new virtual address mappings being applied.

Return values

EFI_SUCCESS	The pointer pointed to by Address was modified.
EFI_INVALID_PARAMETER	1) Address is NULL. 2) *Address is NULL and DebugDisposition does not have the EFI_OPTIONAL_PTR bit set.
EFI_NOT_FOUND	The pointer pointed to by Address was not found to be part of the current memory map. This is normally fatal.

typedef VOID(EFIAPI * EFI_COPY_MEM)(IN VOID *Destination, IN VOID *Source, IN UINTN Length)

Copies the contents of one buffer to another buffer.

Parameters

[in]	Destination	The pointer to the destination buffer of the memory copy.
[in]	Source	The pointer to the source buffer of the memory copy.
[in]	Length	Number of bytes to copy from Source to Destination.

typedef EFI_STATUS(EFIAPI * EFI_CREATE_EVENT)(IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, IN VOID *NotifyContext, OUT EFI_EVENT *Event)

Creates an event.

Parameters

[in]	Type	The type of event to create and its mode and attributes.
[in]	NotifyTpl	The task priority level of event notifications, if needed.
[in]	NotifyFunction	The pointer to the event's notification function, if any.
[in]	NotifyContext	The pointer to the notification function's context; corresponds to parameter Context in the notification function.
[out]	Event	The pointer to the newly created event if the call succeeds; undefined otherwise.

Return values

EFI_SUCCESS	The event structure was created.
EFI_INVALID_PARAMETER	One or more parameters are invalid.
EFI_OUT_OF_RESOURCES	The event could not be allocated.

typedef EFI_STATUS(EFIAPI * EFI_CREATE_EVENT_EX)(IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, IN CONST VOID *NotifyContext, IN CONST EFI_GUID *EventGroup, OUT EFI_EVENT *Event)

Creates an event in a group.

Parameters

[in]	Type	The type of event to create and its mode and attributes.
[in]	NotifyTpl	The task priority level of event notifications,if needed.
[in]	NotifyFunction	The pointer to the event's notification function, if any.
[in]	NotifyContext	The pointer to the notification function's context; corresponds to parameter Context in the notification function.
[in]	EventGroup	The pointer to the unique identifier of the group to which this event belongs. If this is NULL, then the function behaves as if the parameters were passed to CreateEvent.
[out]	Event	The pointer to the newly created event if the call succeeds; undefined otherwise.

Return values

EFI_SUCCESS	The event structure was created.
EFI_INVALID_PARAMETER	One or more parameters are invalid.
EFI_OUT_OF_RESOURCES	The event could not be allocated.

typedef EFI_STATUS(EFIAPI * EFI_DISCONNECT_CONTROLLER)(IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE DriverImageHandle, IN EFI_HANDLE ChildHandle)

Disconnects one or more drivers from a controller.

Parameters

[in]	ControllerHandle	The handle of the controller from which driver(s) are to be disconnected.
[in]	DriverImageHandle	The driver to disconnect from ControllerHandle. If DriverImageHandle is NULL, then all the drivers currently managing ControllerHandle are disconnected from ControllerHandle.
[in]	ChildHandle	The handle of the child to destroy. If ChildHandle is NULL, then all the children of ControllerHandle are destroyed before the drivers are disconnected from ControllerHandle.

Return values

EFI_SUCCESS	1) One or more drivers were disconnected from the controller. 2) On entry, no drivers are managing ControllerHandle. 3) DriverImageHandle is not NULL, and on entry DriverImageHandle is not managing ControllerHandle.
EFI_INVALID_PARAMETER	1) ControllerHandle is NULL. 2) DriverImageHandle is not NULL, and it is not a valid EFI_HANDLE. 3) ChildHandle is not NULL, and it is not a valid EFI_HANDLE. 4) DriverImageHandle does not support the EFI_DRIVER_BINDING_PROTOCOL.
EFI_OUT_OF_RESOURCES	There are not enough resources available to disconnect any drivers from ControllerHandle.
EFI_DEVICE_ERROR	The controller could not be disconnected because of a device error.

typedef VOID(EFIAPI * EFI_EVENT_NOTIFY)(IN EFI_EVENT Event, IN VOID *Context)

Invoke a notification event

Parameters

[in]	Event	Event whose notification function is being invoked.
[in]	Context	The pointer to the notification function's context, which is implementation-dependent.

typedef EFI_STATUS(EFIAPI * EFI_EXIT)(IN EFI_HANDLE ImageHandle, IN EFI_STATUS ExitStatus, IN UINTN ExitDataSize, IN CHAR16 *ExitData)

Terminates a loaded EFI image and returns control to boot services.

Parameters

[in]	ImageHandle	Handle that identifies the image. This parameter is passed to the image on entry.
[in]	ExitStatus	The image's exit code.
[in]	ExitDataSize	The size, in bytes, of ExitData. Ignored if ExitStatus is EFI_SUCCESS.
[in]	ExitData	The pointer to a data buffer that includes a Null-terminated string, optionally followed by additional binary data. The string is a description that the caller may use to further indicate the reason for the image's exit. ExitData is only valid if ExitStatus is something other than EFI_SUCCESS. The ExitData buffer must be allocated by calling AllocatePool().

Return values

EFI_SUCCESS	The image specified by ImageHandle was unloaded.
EFI_INVALID_PARAMETER	The image specified by ImageHandle has been loaded and started with LoadImage() and StartImage(), but the image is not the currently executing image.

typedef EFI_STATUS(EFIAPI * EFI_EXIT_BOOT_SERVICES)(IN EFI_HANDLE ImageHandle, IN UINTN MapKey)

Terminates all boot services.

Parameters

[in]	ImageHandle	Handle that identifies the exiting image.
[in]	MapKey	Key to the latest memory map.

Return values

EFI_SUCCESS	Boot services have been terminated.
EFI_INVALID_PARAMETER	MapKey is incorrect.

typedef EFI_STATUS(EFIAPI * EFI_FREE_PAGES)(IN EFI_PHYSICAL_ADDRESS Memory, IN UINTN Pages)

Frees memory pages.

Parameters

[in]	Memory	The base physical address of the pages to be freed.
[in]	Pages	The number of contiguous 4 KB pages to free.

Return values

EFI_SUCCESS	The requested pages were freed.
EFI_INVALID_PARAMETER	Memory is not a page-aligned address or Pages is invalid.
EFI_NOT_FOUND	The requested memory pages were not allocated with AllocatePages().

typedef EFI_STATUS(EFIAPI * EFI_FREE_POOL)(IN VOID *Buffer)

Returns pool memory to the system.

Parameters

[in] Buffer The pointer to the buffer to free.

Return values

EFI_SUCCESS	The memory was returned to the system.
EFI_INVALID_PARAMETER	Buffer was invalid.

typedef EFI_STATUS(EFIAPI * EFI_GET_MEMORY_MAP)(IN OUT UINTN *MemoryMapSize, OUT EFI_MEMORY_DESCRIPTOR *MemoryMap, OUT UINTN *MapKey, OUT UINTN *DescriptorSize, OUT UINT32 *DescriptorVersion)

Returns the current memory map.

Parameters

[in,out]	MemoryMapSize	A pointer to the size, in bytes, of the MemoryMap buffer. On input, this is the size of the buffer allocated by the caller. On output, it is the size of the buffer returned by the firmware if the buffer was large enough, or the size of the buffer needed to contain the map if the buffer was too small.
[out]	MemoryMap	A pointer to the buffer in which firmware places the current memory map.
[out]	MapKey	A pointer to the location in which firmware returns the key for the current memory map.
[out]	DescriptorSize	A pointer to the location in which firmware returns the size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR.
[out]	DescriptorVersion	A pointer to the location in which firmware returns the version number associated with the EFI_MEMORY_DESCRIPTOR.

Return values

EFI_SUCCESS	The memory map was returned in the MemoryMap buffer.
EFI_BUFFER_TOO_SMALL	The MemoryMap buffer was too small. The current buffer size needed to hold the memory map is returned in MemoryMapSize.
EFI_INVALID_PARAMETER	1) MemoryMapSize is NULL. 2) The MemoryMap buffer is not too small and MemoryMap is NULL.

typedef EFI_STATUS(EFIAPI * EFI_GET_NEXT_HIGH_MONO_COUNT)(OUT UINT32 *HighCount)

Returns the next high 32 bits of the platform's monotonic counter.

Parameters

[out] HighCount The pointer to returned value.

Return values

EFI_SUCCESS	The next high monotonic count was returned.
EFI_INVALID_PARAMETER	HighCount is NULL.
EFI_DEVICE_ERROR	The device is not functioning properly.

typedef EFI_STATUS(EFIAPI * EFI_GET_NEXT_MONOTONIC_COUNT)(OUT UINT64 *Count)

Returns a monotonically increasing count for the platform.

Parameters

[out] Count The pointer to returned value.

Return values

EFI_SUCCESS	The next monotonic count was returned.
EFI_INVALID_PARAMETER	Count is NULL.
EFI_DEVICE_ERROR	The device is not functioning properly.

typedef EFI_STATUS(EFIAPI * EFI_GET_NEXT_VARIABLE_NAME)(IN OUT UINTN *VariableNameSize, IN OUT CHAR16 *VariableName, IN OUT EFI_GUID *VendorGuid)

Enumerates the current variable names.

Parameters

[in,out]	VariableNameSize	The size of the VariableName buffer. The size must be large enough to fit input string supplied in VariableName buffer.
[in,out]	VariableName	On input, supplies the last VariableName that was returned by GetNextVariableName(). On output, returns the Nullterminated string of the current variable.
[in,out]	VendorGuid	On input, supplies the last VendorGuid that was returned by GetNextVariableName(). On output, returns the VendorGuid of the current variable.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_FOUND	The next variable was not found.
EFI_BUFFER_TOO_SMALL	The VariableNameSize is too small for the result. VariableNameSize has been updated with the size needed to complete the request.
EFI_INVALID_PARAMETER	VariableNameSize is NULL.
EFI_INVALID_PARAMETER	VariableName is NULL.
EFI_INVALID_PARAMETER	VendorGuid is NULL.
EFI_INVALID_PARAMETER	The input values of VariableName and VendorGuid are not a name and GUID of an existing variable.
EFI_INVALID_PARAMETER	Null-terminator is not found in the first VariableNameSize bytes of the input VariableName buffer.
EFI_DEVICE_ERROR	The variable could not be retrieved due to a hardware error.

typedef EFI_STATUS(EFIAPI * EFI_GET_TIME)(OUT EFI_TIME *Time, OUT EFI_TIME_CAPABILITIES *Capabilities)

Returns the current time and date information, and the time-keeping capabilities of the hardware platform.

Parameters

[out]	Time	A pointer to storage to receive a snapshot of the current time.
[out]	Capabilities	An optional pointer to a buffer to receive the real time clock device's capabilities.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	Time is NULL.
EFI_DEVICE_ERROR	The time could not be retrieved due to hardware error.

typedef EFI_STATUS(EFIAPI * EFI_GET_VARIABLE)(IN CHAR16 *VariableName, IN EFI_GUID *VendorGuid, OUT UINT32 *Attributes, IN OUT UINTN *DataSize, OUT VOID *Data)

Returns the value of a variable.

Parameters

[in]	VariableName	A Null-terminated string that is the name of the vendor's variable.
[in]	VendorGuid	A unique identifier for the vendor.
[out]	Attributes	If not NULL, a pointer to the memory location to return the attributes bitmask for the variable.
[in,out]	DataSize	On input, the size in bytes of the return Data buffer. On output the size of data returned in Data.
[out]	Data	The buffer to return the contents of the variable. May be NULL with a zero DataSize in order to determine the size buffer needed.

Return values

EFI_SUCCESS	The function completed successfully.
EFI_NOT_FOUND	The variable was not found.
EFI_BUFFER_TOO_SMALL	The DataSize is too small for the result.
EFI_INVALID_PARAMETER	VariableName is NULL.
EFI_INVALID_PARAMETER	VendorGuid is NULL.
EFI_INVALID_PARAMETER	DataSize is NULL.
EFI_INVALID_PARAMETER	The DataSize is not too small and Data is NULL.
EFI_DEVICE_ERROR	The variable could not be retrieved due to a hardware error.
EFI_SECURITY_VIOLATION	The variable could not be retrieved due to an authentication failure.

typedef EFI_STATUS(EFIAPI * EFI_GET_WAKEUP_TIME)(OUT BOOLEAN *Enabled, OUT BOOLEAN *Pending, OUT EFI_TIME *Time)

Returns the current wakeup alarm clock setting.

Parameters

[out]	Enabled	Indicates if the alarm is currently enabled or disabled.
[out]	Pending	Indicates if the alarm signal is pending and requires acknowledgement.
[out]	Time	The current alarm setting.

Return values

EFI_SUCCESS	The alarm settings were returned.
EFI_INVALID_PARAMETER	Enabled is NULL.
EFI_INVALID_PARAMETER	Pending is NULL.
EFI_INVALID_PARAMETER	Time is NULL.
EFI_DEVICE_ERROR	The wakeup time could not be retrieved due to a hardware error.
EFI_UNSUPPORTED	A wakeup timer is not supported on this platform.

typedef EFI_STATUS(EFIAPI * EFI_HANDLE_PROTOCOL)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, OUT VOID **Interface)

Queries a handle to determine if it supports a specified protocol.

Parameters

[in]	Handle	The handle being queried.
[in]	Protocol	The published unique identifier of the protocol.
[out]	Interface	Supplies the address where a pointer to the corresponding Protocol Interface is returned.

Return values

EFI_SUCCESS	The interface information for the specified protocol was returned.
EFI_UNSUPPORTED	The device does not support the specified protocol.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Protocol is NULL.
EFI_INVALID_PARAMETER	Interface is NULL.

typedef EFI_STATUS(EFIAPI * EFI_IMAGE_ENTRY_POINT)(IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

This is the declaration of an EFI image entry point. This entry point is the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including both device drivers and bus drivers.

Parameters

[in]	ImageHandle	The firmware allocated handle for the UEFI image.
[in]	SystemTable	A pointer to the EFI System Table.

Return values

EFI_SUCCESS	The operation completed successfully.
Others	An unexpected error occurred.

typedef EFI_STATUS(EFIAPI * EFI_IMAGE_LOAD)(IN BOOLEAN BootPolicy, IN EFI_HANDLE ParentImageHandle, IN EFI_DEVICE_PATH_PROTOCOL *DevicePath, IN VOID *SourceBuffer, IN UINTN SourceSize, OUT EFI_HANDLE *ImageHandle)

Loads an EFI image into memory.

Parameters

[in]	BootPolicy	If TRUE, indicates that the request originates from the boot manager, and that the boot manager is attempting to load FilePath as a boot selection. Ignored if SourceBuffer is not NULL.
[in]	ParentImageHandle	The caller's image handle.
[in]	DevicePath	The DeviceHandle specific file path from which the image is loaded.
[in]	SourceBuffer	If not NULL, a pointer to the memory location containing a copy of the image to be loaded.
[in]	SourceSize	The size in bytes of SourceBuffer. Ignored if SourceBuffer is NULL.
[out]	ImageHandle	The pointer to the returned image handle that is created when the image is successfully loaded.

Return values

EFI_SUCCESS	Image was loaded into memory correctly.
EFI_NOT_FOUND	Both SourceBuffer and DevicePath are NULL.
EFI_INVALID_PARAMETER	One or more parametes are invalid.
EFI_UNSUPPORTED	The image type is not supported.
EFI_OUT_OF_RESOURCES	Image was not loaded due to insufficient resources.
EFI_LOAD_ERROR	Image was not loaded because the image format was corrupt or not understood.
EFI_DEVICE_ERROR	Image was not loaded because the device returned a read error.
EFI_ACCESS_DENIED	Image was not loaded because the platform policy prohibits the image from being loaded. NULL is returned in *ImageHandle.
EFI_SECURITY_VIOLATION	Image was loaded and an ImageHandle was created with a valid EFI_LOADED_IMAGE_PROTOCOL. However, the current platform policy specifies that the image should not be started.

typedef EFI_STATUS(EFIAPI * EFI_IMAGE_START)(IN EFI_HANDLE ImageHandle, OUT UINTN *ExitDataSize, OUT CHAR16 **ExitData)

Transfers control to a loaded image's entry point.

Parameters

[in]	ImageHandle	Handle of image to be started.
[out]	ExitDataSize	The pointer to the size, in bytes, of ExitData.
[out]	ExitData	The pointer to a pointer to a data buffer that includes a Null-terminated string, optionally followed by additional binary data.

Return values

EFI_INVALID_PARAMETER	ImageHandle is either an invalid image handle or the image has already been initialized with StartImage.
EFI_SECURITY_VIOLATION	The current platform policy specifies that the image should not be started.

Returns: Exit code from image

typedef EFI_STATUS(EFIAPI * EFI_IMAGE_UNLOAD)(IN EFI_HANDLE ImageHandle)

Unloads an image.

Parameters

[in] ImageHandle Handle that identifies the image to be unloaded.

Return values

EFI_SUCCESS	The image has been unloaded.
EFI_INVALID_PARAMETER	ImageHandle is not a valid image handle.

typedef EFI_STATUS(EFIAPI * EFI_INSTALL_CONFIGURATION_TABLE)(IN EFI_GUID *Guid, IN VOID *Table)

Adds, updates, or removes a configuration table entry from the EFI System Table.

Parameters

[in]	Guid	A pointer to the GUID for the entry to add, update, or remove.
[in]	Table	A pointer to the configuration table for the entry to add, update, or remove. May be NULL.

Return values

EFI_SUCCESS	The (Guid, Table) pair was added, updated, or removed.
EFI_NOT_FOUND	An attempt was made to delete a nonexistent entry.
EFI_INVALID_PARAMETER	Guid is NULL.
EFI_OUT_OF_RESOURCES	There is not enough memory available to complete the operation.

typedef EFI_STATUS(EFIAPI * EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES)(IN OUT EFI_HANDLE *Handle,...)

Installs one or more protocol interfaces into the boot services environment.

Parameters

[in,out]	Handle	The pointer to a handle to install the new protocol interfaces on, or a pointer to NULL if a new handle is to be allocated.
	...	A variable argument list containing pairs of protocol GUIDs and protocol interfaces.

Return values

EFI_SUCCESS	All the protocol interface was installed.
EFI_OUT_OF_RESOURCES	There was not enough memory in pool to install all the protocols.
EFI_ALREADY_STARTED	A Device Path Protocol instance was passed in that is already present in the handle database.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Protocol is already installed on the handle specified by Handle.

typedef EFI_STATUS(EFIAPI * EFI_INSTALL_PROTOCOL_INTERFACE)(IN OUT EFI_HANDLE *Handle, IN EFI_GUID *Protocol, IN EFI_INTERFACE_TYPE InterfaceType, IN VOID *Interface)

Installs a protocol interface on a device handle. If the handle does not exist, it is created and added to the list of handles in the system. InstallMultipleProtocolInterfaces() performs more error checking than InstallProtocolInterface(), so it is recommended that InstallMultipleProtocolInterfaces() be used in place of InstallProtocolInterface()

Parameters

[in,out]	Handle	A pointer to the EFI_HANDLE on which the interface is to be installed.
[in]	Protocol	The numeric ID of the protocol interface.
[in]	InterfaceType	Indicates whether Interface is supplied in native form.
[in]	Interface	A pointer to the protocol interface.

Return values

EFI_SUCCESS	The protocol interface was installed.
EFI_OUT_OF_RESOURCES	Space for a new handle could not be allocated.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Protocol is NULL.
EFI_INVALID_PARAMETER	InterfaceType is not EFI_NATIVE_INTERFACE.
EFI_INVALID_PARAMETER	Protocol is already installed on the handle specified by Handle.

typedef struct _EFI_LOAD_OPTION EFI_LOAD_OPTION

typedef EFI_STATUS(EFIAPI * EFI_LOCATE_DEVICE_PATH)(IN EFI_GUID *Protocol, IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath, OUT EFI_HANDLE *Device)

Locates the handle to a device on the device path that supports the specified protocol.

Parameters

[in]	Protocol	Specifies the protocol to search for.
[in,out]	DevicePath	On input, a pointer to a pointer to the device path. On output, the device path pointer is modified to point to the remaining part of the device path.
[out]	Device	A pointer to the returned device handle.

Return values

EFI_SUCCESS	The resulting handle was returned.
EFI_NOT_FOUND	No handles match the search.
EFI_INVALID_PARAMETER	Protocol is NULL.
EFI_INVALID_PARAMETER	DevicePath is NULL.
EFI_INVALID_PARAMETER	A handle matched the search and Device is NULL.

typedef EFI_STATUS(EFIAPI * EFI_LOCATE_HANDLE)(IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID *Protocol, IN VOID *SearchKey, IN OUT UINTN *BufferSize, OUT EFI_HANDLE *Buffer)

Returns an array of handles that support a specified protocol.

Parameters

[in]	SearchType	Specifies which handle(s) are to be returned.
[in]	Protocol	Specifies the protocol to search by.
[in]	SearchKey	Specifies the search key.
[in,out]	BufferSize	On input, the size in bytes of Buffer. On output, the size in bytes of the array returned in Buffer (if the buffer was large enough) or the size, in bytes, of the buffer needed to obtain the array (if the buffer was not large enough).
[out]	Buffer	The buffer in which the array is returned.

Return values

EFI_SUCCESS	The array of handles was returned.
EFI_NOT_FOUND	No handles match the search.
EFI_BUFFER_TOO_SMALL	The BufferSize is too small for the result.
EFI_INVALID_PARAMETER	SearchType is not a member of EFI_LOCATE_SEARCH_TYPE.
EFI_INVALID_PARAMETER	SearchType is ByRegisterNotify and SearchKey is NULL.
EFI_INVALID_PARAMETER	SearchType is ByProtocol and Protocol is NULL.
EFI_INVALID_PARAMETER	One or more matches are found and BufferSize is NULL.
EFI_INVALID_PARAMETER	BufferSize is large enough for the result and Buffer is NULL.

typedef EFI_STATUS(EFIAPI * EFI_LOCATE_HANDLE_BUFFER)(IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID *Protocol, IN VOID *SearchKey, OUT UINTN *NoHandles, OUT EFI_HANDLE **Buffer)

Returns an array of handles that support the requested protocol in a buffer allocated from pool.

Parameters

[in]	SearchType	Specifies which handle(s) are to be returned.
[in]	Protocol	Provides the protocol to search by. This parameter is only valid for a SearchType of ByProtocol.
[in]	SearchKey	Supplies the search key depending on the SearchType.
[out]	NoHandles	The number of handles returned in Buffer.
[out]	Buffer	A pointer to the buffer to return the requested array of handles that support Protocol.

Return values

EFI_SUCCESS	The array of handles was returned in Buffer, and the number of handles in Buffer was returned in NoHandles.
EFI_NOT_FOUND	No handles match the search.
EFI_OUT_OF_RESOURCES	There is not enough pool memory to store the matching results.
EFI_INVALID_PARAMETER	NoHandles is NULL.
EFI_INVALID_PARAMETER	Buffer is NULL.

typedef EFI_STATUS(EFIAPI * EFI_LOCATE_PROTOCOL)(IN EFI_GUID *Protocol, IN VOID *Registration, OUT VOID **Interface)

Returns the first protocol instance that matches the given protocol.

Parameters

[in]	Protocol	Provides the protocol to search for.
[in]	Registration	Optional registration key returned from RegisterProtocolNotify().
[out]	Interface	On return, a pointer to the first interface that matches Protocol and Registration.

Return values

EFI_SUCCESS	A protocol instance matching Protocol was found and returned in Interface.
EFI_NOT_FOUND	No protocol instances were found that match Protocol and Registration.
EFI_INVALID_PARAMETER	Interface is NULL. Protocol is NULL.

typedef EFI_STATUS(EFIAPI * EFI_OPEN_PROTOCOL)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, OUT VOID **Interface, IN EFI_HANDLE AgentHandle, IN EFI_HANDLE ControllerHandle, IN UINT32 Attributes)

Queries a handle to determine if it supports a specified protocol. If the protocol is supported by the handle, it opens the protocol on behalf of the calling agent.

Parameters

[in]	Handle	The handle for the protocol interface that is being opened.
[in]	Protocol	The published unique identifier of the protocol.
[out]	Interface	Supplies the address where a pointer to the corresponding Protocol Interface is returned.
[in]	AgentHandle	The handle of the agent that is opening the protocol interface specified by Protocol and Interface.
[in]	ControllerHandle	If the agent that is opening a protocol is a driver that follows the UEFI Driver Model, then this parameter is the controller handle that requires the protocol interface. If the agent does not follow the UEFI Driver Model, then this parameter is optional and may be NULL.
[in]	Attributes	The open mode of the protocol interface specified by Handle and Protocol.

Return values

EFI_SUCCESS	An item was added to the open list for the protocol interface, and the protocol interface was returned in Interface.
EFI_UNSUPPORTED	Handle does not support Protocol.
EFI_INVALID_PARAMETER	One or more parameters are invalid.
EFI_ACCESS_DENIED	Required attributes can't be supported in current environment.
EFI_ALREADY_STARTED	Item on the open list already has requierd attributes whose agent handle is the same as AgentHandle.

typedef EFI_STATUS(EFIAPI * EFI_OPEN_PROTOCOL_INFORMATION)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, OUT EFI_OPEN_PROTOCOL_INFORMATION_ENTRY **EntryBuffer, OUT UINTN *EntryCount)

Retrieves the list of agents that currently have a protocol interface opened.

Parameters

[in]	Handle	The handle for the protocol interface that is being queried.
[in]	Protocol	The published unique identifier of the protocol.
[out]	EntryBuffer	A pointer to a buffer of open protocol information in the form of EFI_OPEN_PROTOCOL_INFORMATION_ENTRY structures.
[out]	EntryCount	A pointer to the number of entries in EntryBuffer.

Return values

EFI_SUCCESS	The open protocol information was returned in EntryBuffer, and the number of entries was returned EntryCount.
EFI_OUT_OF_RESOURCES	There are not enough resources available to allocate EntryBuffer.
EFI_NOT_FOUND	Handle does not support the protocol specified by Protocol.

typedef EFI_STATUS(EFIAPI * EFI_PROTOCOLS_PER_HANDLE)(IN EFI_HANDLE Handle, OUT EFI_GUID ***ProtocolBuffer, OUT UINTN *ProtocolBufferCount)

Retrieves the list of protocol interface GUIDs that are installed on a handle in a buffer allocated from pool.

Parameters

[in]	Handle	The handle from which to retrieve the list of protocol interface GUIDs.
[out]	ProtocolBuffer	A pointer to the list of protocol interface GUID pointers that are installed on Handle.
[out]	ProtocolBufferCount	A pointer to the number of GUID pointers present in ProtocolBuffer.

Return values

EFI_SUCCESS	The list of protocol interface GUIDs installed on Handle was returned in ProtocolBuffer. The number of protocol interface GUIDs was returned in ProtocolBufferCount.
EFI_OUT_OF_RESOURCES	There is not enough pool memory to store the results.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Handle is not a valid EFI_HANDLE.
EFI_INVALID_PARAMETER	ProtocolBuffer is NULL.
EFI_INVALID_PARAMETER	ProtocolBufferCount is NULL.

typedef EFI_STATUS(EFIAPI * EFI_QUERY_CAPSULE_CAPABILITIES)(IN EFI_CAPSULE_HEADER **CapsuleHeaderArray, IN UINTN CapsuleCount, OUT UINT64 *MaximumCapsuleSize, OUT EFI_RESET_TYPE *ResetType)

Returns if the capsule can be supported via UpdateCapsule().

Parameters

[in]	CapsuleHeaderArray	Virtual pointer to an array of virtual pointers to the capsules being passed into update capsule.
[in]	CapsuleCount	Number of pointers to EFI_CAPSULE_HEADER in CaspuleHeaderArray.
[out]	MaxiumCapsuleSize	On output the maximum size that UpdateCapsule() can support as an argument to UpdateCapsule() via CapsuleHeaderArray and ScatterGatherList.
[out]	ResetType	Returns the type of reset required for the capsule update.

Return values

EFI_SUCCESS	Valid answer returned.
EFI_UNSUPPORTED	The capsule type is not supported on this platform, and MaximumCapsuleSize and ResetType are undefined.
EFI_INVALID_PARAMETER	MaximumCapsuleSize is NULL.
EFI_OUT_OF_RESOURCES	When ExitBootServices() has been previously called this error indicates the capsule is compatible with this platform but is not capable of being submitted or processed in runtime. The caller may resubmit the capsule prior to ExitBootServices().
EFI_OUT_OF_RESOURCES	When ExitBootServices() has not been previously called then this error indicates the capsule is compatible with this platform but there are insufficient resources to process.

typedef EFI_STATUS(EFIAPI * EFI_QUERY_VARIABLE_INFO)(IN UINT32 Attributes, OUT UINT64 *MaximumVariableStorageSize, OUT UINT64 *RemainingVariableStorageSize, OUT UINT64 *MaximumVariableSize)

Returns information about the EFI variables.

Parameters

[in]	Attributes	Attributes bitmask to specify the type of variables on which to return information.
[out]	MaximumVariableStorageSize	On output the maximum size of the storage space available for the EFI variables associated with the attributes specified.
[out]	RemainingVariableStorageSize	Returns the remaining size of the storage space available for the EFI variables associated with the attributes specified.
[out]	MaximumVariableSize	Returns the maximum size of the individual EFI variables associated with the attributes specified.

Return values

EFI_SUCCESS	Valid answer returned.
EFI_INVALID_PARAMETER	An invalid combination of attribute bits was supplied
EFI_UNSUPPORTED	The attribute is not supported on this platform, and the MaximumVariableStorageSize, RemainingVariableStorageSize, MaximumVariableSize are undefined.

typedef EFI_TPL(EFIAPI * EFI_RAISE_TPL)(IN EFI_TPL NewTpl)

Raises a task's priority level and returns its previous level.

Parameters

[in] NewTpl The new task priority level.

Returns: Previous task priority level

typedef EFI_STATUS(EFIAPI * EFI_REGISTER_PROTOCOL_NOTIFY)(IN EFI_GUID *Protocol, IN EFI_EVENT Event, OUT VOID **Registration)

Creates an event that is to be signaled whenever an interface is installed for a specified protocol.

Parameters

[in]	Protocol	The numeric ID of the protocol for which the event is to be registered.
[in]	Event	Event that is to be signaled whenever a protocol interface is registered for Protocol.
[out]	Registration	A pointer to a memory location to receive the registration value.

Return values

EFI_SUCCESS	The notification event has been registered.
EFI_OUT_OF_RESOURCES	Space for the notification event could not be allocated.
EFI_INVALID_PARAMETER	Protocol is NULL.
EFI_INVALID_PARAMETER	Event is NULL.
EFI_INVALID_PARAMETER	Registration is NULL.

typedef EFI_STATUS(EFIAPI * EFI_REINSTALL_PROTOCOL_INTERFACE)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, IN VOID *OldInterface, IN VOID *NewInterface)

Reinstalls a protocol interface on a device handle.

Parameters

[in]	Handle	Handle on which the interface is to be reinstalled.
[in]	Protocol	The numeric ID of the interface.
[in]	OldInterface	A pointer to the old interface. NULL can be used if a structure is not associated with Protocol.
[in]	NewInterface	A pointer to the new interface.

Return values

EFI_SUCCESS	The protocol interface was reinstalled.
EFI_NOT_FOUND	The OldInterface on the handle was not found.
EFI_ACCESS_DENIED	The protocol interface could not be reinstalled, because OldInterface is still being used by a driver that will not release it.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Protocol is NULL.

typedef VOID(EFIAPI * EFI_RESET_SYSTEM)(IN EFI_RESET_TYPE ResetType, IN EFI_STATUS ResetStatus, IN UINTN DataSize, IN VOID *ResetData)

Resets the entire platform.

Parameters

[in]	ResetType	The type of reset to perform.
[in]	ResetStatus	The status code for the reset.
[in]	DataSize	The size, in bytes, of ResetData.
[in]	ResetData	For a ResetType of EfiResetCold, EfiResetWarm, or EfiResetShutdown the data buffer starts with a Null-terminated string, optionally followed by additional binary data. The string is a description that the caller may use to further indicate the reason for the system reset. For a ResetType of EfiResetPlatformSpecific the data buffer also starts with a Null-terminated string that is followed by an EFI_GUID that describes the specific type of reset to perform.

typedef VOID(EFIAPI * EFI_RESTORE_TPL)(IN EFI_TPL OldTpl)

Restores a task's priority level to its previous value.

Parameters

[in] OldTpl The previous task priority level to restore.

typedef VOID(EFIAPI * EFI_SET_MEM)(IN VOID *Buffer, IN UINTN Size, IN UINT8 Value)

The SetMem() function fills a buffer with a specified value.

Parameters

[in]	Buffer	The pointer to the buffer to fill.
[in]	Size	Number of bytes in Buffer to fill.
[in]	Value	Value to fill Buffer with.

typedef EFI_STATUS(EFIAPI * EFI_SET_TIME)(IN EFI_TIME *Time)

Sets the current local time and date information.

Parameters

[in] Time A pointer to the current time.

Return values

EFI_SUCCESS	The operation completed successfully.
EFI_INVALID_PARAMETER	A time field is out of range.
EFI_DEVICE_ERROR	The time could not be set due due to hardware error.

typedef EFI_STATUS(EFIAPI * EFI_SET_TIMER)(IN EFI_EVENT Event, IN EFI_TIMER_DELAY Type, IN UINT64 TriggerTime)

Sets the type of timer and the trigger time for a timer event.

Parameters

[in]	Event	The timer event that is to be signaled at the specified time.
[in]	Type	The type of time that is specified in TriggerTime.
[in]	TriggerTime	The number of 100ns units until the timer expires. A TriggerTime of 0 is legal. If Type is TimerRelative and TriggerTime is 0, then the timer event will be signaled on the next timer tick. If Type is TimerPeriodic and TriggerTime is 0, then the timer event will be signaled on every timer tick.

Return values

EFI_SUCCESS	The event has been set to be signaled at the requested time.
EFI_INVALID_PARAMETER	Event or Type is not valid.

typedef EFI_STATUS(EFIAPI * EFI_SET_VARIABLE)(IN CHAR16 *VariableName, IN EFI_GUID *VendorGuid, IN UINT32 Attributes, IN UINTN DataSize, IN VOID *Data)

Sets the value of a variable.

Parameters

[in]	VariableName	A Null-terminated string that is the name of the vendor's variable. Each VariableName is unique for each VendorGuid. VariableName must contain 1 or more characters. If VariableName is an empty string, then EFI_INVALID_PARAMETER is returned.
[in]	VendorGuid	A unique identifier for the vendor.
[in]	Attributes	Attributes bitmask to set for the variable.
[in]	DataSize	The size in bytes of the Data buffer. Unless the EFI_VARIABLE_APPEND_WRITE or EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS attribute is set, a size of zero causes the variable to be deleted. When the EFI_VARIABLE_APPEND_WRITE attribute is set, then a SetVariable() call with a DataSize of zero will not cause any change to the variable value (the timestamp associated with the variable may be updated however even if no new data value is provided,see the description of the EFI_VARIABLE_AUTHENTICATION_2 descriptor below. In this case the DataSize will not be zero since the EFI_VARIABLE_AUTHENTICATION_2 descriptor will be populated).
[in]	Data	The contents for the variable.

Return values

EFI_SUCCESS	The firmware has successfully stored the variable and its data as defined by the Attributes.
EFI_INVALID_PARAMETER	An invalid combination of attribute bits, name, and GUID was supplied, or the DataSize exceeds the maximum allowed.
EFI_INVALID_PARAMETER	VariableName is an empty string.
EFI_OUT_OF_RESOURCES	Not enough storage is available to hold the variable and its data.
EFI_DEVICE_ERROR	The variable could not be retrieved due to a hardware error.
EFI_WRITE_PROTECTED	The variable in question is read-only.
EFI_WRITE_PROTECTED	The variable in question cannot be deleted.
EFI_SECURITY_VIOLATION	The variable could not be written due to EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACESS being set, but the AuthInfo does NOT pass the validation check carried out by the firmware.
EFI_NOT_FOUND	The variable trying to be updated or deleted was not found.

typedef EFI_STATUS(EFIAPI * EFI_SET_VIRTUAL_ADDRESS_MAP)(IN UINTN MemoryMapSize, IN UINTN DescriptorSize, IN UINT32 DescriptorVersion, IN EFI_MEMORY_DESCRIPTOR *VirtualMap)

Changes the runtime addressing mode of EFI firmware from physical to virtual.

Parameters

[in]	MemoryMapSize	The size in bytes of VirtualMap.
[in]	DescriptorSize	The size in bytes of an entry in the VirtualMap.
[in]	DescriptorVersion	The version of the structure entries in VirtualMap.
[in]	VirtualMap	An array of memory descriptors which contain new virtual address mapping information for all runtime ranges.

Return values

EFI_SUCCESS	The virtual address map has been applied.
EFI_UNSUPPORTED	EFI firmware is not at runtime, or the EFI firmware is already in virtual address mapped mode.
EFI_INVALID_PARAMETER	DescriptorSize or DescriptorVersion is invalid.
EFI_NO_MAPPING	A virtual address was not supplied for a range in the memory map that requires a mapping.
EFI_NOT_FOUND	A virtual address was supplied for an address that is not found in the memory map.

typedef EFI_STATUS(EFIAPI * EFI_SET_WAKEUP_TIME)(IN BOOLEAN Enable, IN EFI_TIME *Time)

Sets the system wakeup alarm clock time.

Parameters

[in]	Enable	Enable or disable the wakeup alarm.
[in]	Time	If Enable is TRUE, the time to set the wakeup alarm for. If Enable is FALSE, then this parameter is optional, and may be NULL.

Return values

EFI_SUCCESS	If Enable is TRUE, then the wakeup alarm was enabled. If Enable is FALSE, then the wakeup alarm was disabled.
EFI_INVALID_PARAMETER	A time field is out of range.
EFI_DEVICE_ERROR	The wakeup time could not be set due to a hardware error.
EFI_UNSUPPORTED	A wakeup timer is not supported on this platform.

typedef EFI_STATUS(EFIAPI * EFI_SET_WATCHDOG_TIMER)(IN UINTN Timeout, IN UINT64 WatchdogCode, IN UINTN DataSize, IN CHAR16 *WatchdogData)

Sets the system's watchdog timer.

Parameters

[in]	Timeout	The number of seconds to set the watchdog timer to.
[in]	WatchdogCode	The numeric code to log on a watchdog timer timeout event.
[in]	DataSize	The size, in bytes, of WatchdogData.
[in]	WatchdogData	A data buffer that includes a Null-terminated string, optionally followed by additional binary data.

Return values

EFI_SUCCESS	The timeout has been set.
EFI_INVALID_PARAMETER	The supplied WatchdogCode is invalid.
EFI_UNSUPPORTED	The system does not have a watchdog timer.
EFI_DEVICE_ERROR	The watchdog timer could not be programmed due to a hardware error.

typedef EFI_STATUS(EFIAPI * EFI_SIGNAL_EVENT)(IN EFI_EVENT Event)

Signals an event.

Parameters

[in] Event The event to signal.

Return values

EFI_SUCCESS The event has been signaled.

typedef EFI_STATUS(EFIAPI * EFI_STALL)(IN UINTN Microseconds)

Induces a fine-grained stall.

Parameters

[in] Microseconds The number of microseconds to stall execution.

Return values

EFI_SUCCESS Execution was stalled at least the requested number of Microseconds.

typedef EFI_STATUS(EFIAPI * EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES)(IN EFI_HANDLE Handle,...)

Removes one or more protocol interfaces into the boot services environment.

Parameters

[in]	Handle	The handle to remove the protocol interfaces from.
	...	A variable argument list containing pairs of protocol GUIDs and protocol interfaces.

Return values

EFI_SUCCESS	All the protocol interfaces were removed.
EFI_INVALID_PARAMETER	One of the protocol interfaces was not previously installed on Handle.

typedef EFI_STATUS(EFIAPI * EFI_UNINSTALL_PROTOCOL_INTERFACE)(IN EFI_HANDLE Handle, IN EFI_GUID *Protocol, IN VOID *Interface)

Removes a protocol interface from a device handle. It is recommended that UninstallMultipleProtocolInterfaces() be used in place of UninstallProtocolInterface().

Parameters

[in]	Handle	The handle on which the interface was installed.
[in]	Protocol	The numeric ID of the interface.
[in]	Interface	A pointer to the interface.

Return values

EFI_SUCCESS	The interface was removed.
EFI_NOT_FOUND	The interface was not found.
EFI_ACCESS_DENIED	The interface was not removed because the interface is still being used by a driver.
EFI_INVALID_PARAMETER	Handle is NULL.
EFI_INVALID_PARAMETER	Protocol is NULL.

typedef EFI_STATUS(EFIAPI * EFI_UPDATE_CAPSULE)(IN EFI_CAPSULE_HEADER **CapsuleHeaderArray, IN UINTN CapsuleCount, IN EFI_PHYSICAL_ADDRESS ScatterGatherList)

Passes capsules to the firmware with both virtual and physical mapping. Depending on the intended consumption, the firmware may process the capsule immediately. If the payload should persist across a system reset, the reset value returned from EFI_QueryCapsuleCapabilities must be passed into ResetSystem() and will cause the capsule to be processed by the firmware as part of the reset process.

Parameters

[in]	CapsuleHeaderArray	Virtual pointer to an array of virtual pointers to the capsules being passed into update capsule.
[in]	CapsuleCount	Number of pointers to EFI_CAPSULE_HEADER in CaspuleHeaderArray.
[in]	ScatterGatherList	Physical pointer to a set of EFI_CAPSULE_BLOCK_DESCRIPTOR that describes the location in physical memory of a set of capsules.

Return values

EFI_SUCCESS	Valid capsule was passed. If CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the capsule has been successfully processed by the firmware.
EFI_INVALID_PARAMETER	CapsuleSize is NULL, or an incompatible set of flags were set in the capsule header.
EFI_INVALID_PARAMETER	CapsuleCount is 0.
EFI_DEVICE_ERROR	The capsule update was started, but failed due to a device error.
EFI_UNSUPPORTED	The capsule type is not supported on this platform.
EFI_OUT_OF_RESOURCES	When ExitBootServices() has been previously called this error indicates the capsule is compatible with this platform but is not capable of being submitted or processed in runtime. The caller may resubmit the capsule prior to ExitBootServices().
EFI_OUT_OF_RESOURCES	When ExitBootServices() has not been previously called then this error indicates the capsule is compatible with this platform but there are insufficient resources to process.

typedef EFI_STATUS(EFIAPI * EFI_WAIT_FOR_EVENT)(IN UINTN NumberOfEvents, IN EFI_EVENT *Event, OUT UINTN *Index)

Stops execution until an event is signaled.

Parameters

[in]	NumberOfEvents	The number of events in the Event array.
[in]	Event	An array of EFI_EVENT.
[out]	Index	The pointer to the index of the event which satisfied the wait condition.

Return values

EFI_SUCCESS	The event indicated by Index was signaled.
EFI_INVALID_PARAMETER	1) NumberOfEvents is 0. 2) The event indicated by Index is of type EVT_NOTIFY_SIGNAL.
EFI_UNSUPPORTED	The current TPL is not TPL_APPLICATION.

Enumeration Type Documentation

enum EFI_ALLOCATE_TYPE

Enumeration of EFI memory allocation types.

Enumerator
AllocateAnyPages	Allocate any available range of pages that satisfies the request.
AllocateMaxAddress	Allocate any available range of pages whose uppermost address is less than or equal to a specified maximum address.
AllocateAddress	Allocate pages at a specified address.
MaxAllocateType	Maximum enumeration value that may be used for bounds checking.

enum EFI_INTERFACE_TYPE

Enumeration of EFI Interface Types

Enumerator
EFI_NATIVE_INTERFACE	Indicates that the supplied protocol interface is supplied in native form.

enum EFI_LOCATE_SEARCH_TYPE

Enumeration of EFI Locate Search Types

Enumerator
AllHandles	Retrieve all the handles in the handle database.
ByRegisterNotify	Retrieve the next handle fron a RegisterProtocolNotify() event.
ByProtocol	Retrieve the set of handles from the handle database that support a specified protocol.

enum EFI_TIMER_DELAY

Timer delay types

Enumerator
TimerCancel	An event's timer settings is to be cancelled and not trigger time is to be set/
TimerPeriodic	An event is to be signaled periodically at a specified interval from the current time.
TimerRelative	An event is to be signaled once at a specified interval from the current time.

Data Structures

Macros

Typedefs

Enumerations

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation