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Voyager/Voyager-2/Voyager-2 (2004-1709)/edk2/MdePkg/Include/Uefi/UefiSpec.h

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/** @file
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.
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __UEFI_SPEC_H__
#define __UEFI_SPEC_H__
#include <Uefi/UefiMultiPhase.h>
#include <Protocol/DevicePath.h>
#include <Protocol/SimpleTextIn.h>
#include <Protocol/SimpleTextInEx.h>
#include <Protocol/SimpleTextOut.h>
///
/// Enumeration of EFI memory allocation types.
///
typedef enum {
///
/// Allocate any available range of pages that satisfies the request.
///
AllocateAnyPages,
///
/// Allocate any available range of pages whose uppermost address is less than
/// or equal to a specified maximum address.
///
AllocateMaxAddress,
///
/// Allocate pages at a specified address.
///
AllocateAddress,
///
/// Maximum enumeration value that may be used for bounds checking.
///
MaxAllocateType
} EFI_ALLOCATE_TYPE;
//
// Bit definitions for EFI_TIME.Daylight
//
#define EFI_TIME_ADJUST_DAYLIGHT 0x01
#define EFI_TIME_IN_DAYLIGHT 0x02
///
/// Value definition for EFI_TIME.TimeZone.
///
#define EFI_UNSPECIFIED_TIMEZONE 0x07FF
//
// Memory cacheability attributes
//
#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
//
// Physical memory protection attributes
//
// Note: UEFI spec 2.5 and following: use EFI_MEMORY_RO as write-protected physical memory
// protection attribute. Also, EFI_MEMORY_WP means cacheability attribute.
//
#define EFI_MEMORY_WP 0x0000000000001000ULL
#define EFI_MEMORY_RP 0x0000000000002000ULL
#define EFI_MEMORY_XP 0x0000000000004000ULL
#define EFI_MEMORY_RO 0x0000000000020000ULL
//
// Physical memory persistence attribute.
// The memory region supports byte-addressable non-volatility.
//
#define EFI_MEMORY_NV 0x0000000000008000ULL
//
// The memory region provides higher reliability relative to other memory in the system.
// If all memory has the same reliability, then this bit is not used.
//
#define EFI_MEMORY_MORE_RELIABLE 0x0000000000010000ULL
//
// Runtime memory attribute
//
#define EFI_MEMORY_RUNTIME 0x8000000000000000ULL
///
/// Memory descriptor version number.
///
#define EFI_MEMORY_DESCRIPTOR_VERSION 1
///
/// Definition of an EFI memory descriptor.
///
typedef struct {
///
/// Type of the memory region.
/// Type EFI_MEMORY_TYPE is defined in the
/// AllocatePages() function description.
///
UINT32 Type;
///
/// Physical address of the first byte in the memory region. PhysicalStart must be
/// aligned on a 4 KiB boundary, and must not be above 0xfffffffffffff000. Type
/// EFI_PHYSICAL_ADDRESS is defined in the AllocatePages() function description
///
EFI_PHYSICAL_ADDRESS PhysicalStart;
///
/// Virtual address of the first byte in the memory region.
/// VirtualStart must be aligned on a 4 KiB boundary,
/// and must not be above 0xfffffffffffff000.
///
EFI_VIRTUAL_ADDRESS VirtualStart;
///
/// NumberOfPagesNumber of 4 KiB pages in the memory region.
/// NumberOfPages must not be 0, and must not be any value
/// that would represent a memory page with a start address,
/// either physical or virtual, above 0xfffffffffffff000.
///
UINT64 NumberOfPages;
///
/// Attributes of the memory region that describe the bit mask of capabilities
/// for that memory region, and not necessarily the current settings for that
/// memory region.
///
UINT64 Attribute;
} EFI_MEMORY_DESCRIPTOR;
/**
Allocates memory pages from the system.
@param[in] Type The type of allocation to perform.
@param[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.
@param[in] Pages The number of contiguous 4 KB pages to allocate.
@param[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.
@retval EFI_SUCCESS The requested pages were allocated.
@retval 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.
@retval EFI_OUT_OF_RESOURCES The pages could not be allocated.
@retval EFI_NOT_FOUND The requested pages could not be found.
**/
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
);
/**
Frees memory pages.
@param[in] Memory The base physical address of the pages to be freed.
@param[in] Pages The number of contiguous 4 KB pages to free.
@retval EFI_SUCCESS The requested pages were freed.
@retval EFI_INVALID_PARAMETER Memory is not a page-aligned address or Pages is invalid.
@retval EFI_NOT_FOUND The requested memory pages were not allocated with
AllocatePages().
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FREE_PAGES)(
IN EFI_PHYSICAL_ADDRESS Memory,
IN UINTN Pages
);
/**
Returns the current memory map.
@param[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.
@param[in, out] MemoryMap A pointer to the buffer in which firmware places the current memory
map.
@param[out] MapKey A pointer to the location in which firmware returns the key for the
current memory map.
@param[out] DescriptorSize A pointer to the location in which firmware returns the size, in bytes, of
an individual EFI_MEMORY_DESCRIPTOR.
@param[out] DescriptorVersion A pointer to the location in which firmware returns the version number
associated with the EFI_MEMORY_DESCRIPTOR.
@retval EFI_SUCCESS The memory map was returned in the MemoryMap buffer.
@retval EFI_BUFFER_TOO_SMALL The MemoryMap buffer was too small. The current buffer size
needed to hold the memory map is returned in MemoryMapSize.
@retval 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_MEMORY_MAP)(
IN OUT UINTN *MemoryMapSize,
IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap,
OUT UINTN *MapKey,
OUT UINTN *DescriptorSize,
OUT UINT32 *DescriptorVersion
);
/**
Allocates pool memory.
@param[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.
@param[in] Size The number of bytes to allocate from the pool.
@param[out] Buffer A pointer to a pointer to the allocated buffer if the call succeeds;
undefined otherwise.
@retval EFI_SUCCESS The requested number of bytes was allocated.
@retval EFI_OUT_OF_RESOURCES The pool requested could not be allocated.
@retval EFI_INVALID_PARAMETER Buffer is NULL.
PoolType is in the range EfiMaxMemoryType..0x6FFFFFFF.
PoolType is EfiPersistentMemory.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_ALLOCATE_POOL)(
IN EFI_MEMORY_TYPE PoolType,
IN UINTN Size,
OUT VOID **Buffer
);
/**
Returns pool memory to the system.
@param[in] Buffer The pointer to the buffer to free.
@retval EFI_SUCCESS The memory was returned to the system.
@retval EFI_INVALID_PARAMETER Buffer was invalid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_FREE_POOL)(
IN VOID *Buffer
);
/**
Changes the runtime addressing mode of EFI firmware from physical to virtual.
@param[in] MemoryMapSize The size in bytes of VirtualMap.
@param[in] DescriptorSize The size in bytes of an entry in the VirtualMap.
@param[in] DescriptorVersion The version of the structure entries in VirtualMap.
@param[in] VirtualMap An array of memory descriptors which contain new virtual
address mapping information for all runtime ranges.
@retval EFI_SUCCESS The virtual address map has been applied.
@retval EFI_UNSUPPORTED EFI firmware is not at runtime, or the EFI firmware is already in
virtual address mapped mode.
@retval EFI_INVALID_PARAMETER DescriptorSize or DescriptorVersion is invalid.
@retval EFI_NO_MAPPING A virtual address was not supplied for a range in the memory
map that requires a mapping.
@retval 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_VIRTUAL_ADDRESS_MAP)(
IN UINTN MemoryMapSize,
IN UINTN DescriptorSize,
IN UINT32 DescriptorVersion,
IN EFI_MEMORY_DESCRIPTOR *VirtualMap
);
/**
Connects one or more drivers to a controller.
@param[in] ControllerHandle The handle of the controller to which driver(s) are to be connected.
@param[in] DriverImageHandle A pointer to an ordered list handles that support the
EFI_DRIVER_BINDING_PROTOCOL.
@param[in] RemainingDevicePath A pointer to the device path that specifies a child of the
controller specified by ControllerHandle.
@param[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.
@retval 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.
@retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
@retval EFI_NOT_FOUND 1) There are no EFI_DRIVER_BINDING_PROTOCOL instances
present in the system.
2) No drivers were connected to ControllerHandle.
@retval 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_CONNECT_CONTROLLER)(
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE *DriverImageHandle, OPTIONAL
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath, OPTIONAL
IN BOOLEAN Recursive
);
/**
Disconnects one or more drivers from a controller.
@param[in] ControllerHandle The handle of the controller from which driver(s) are to be disconnected.
@param[in] DriverImageHandle The driver to disconnect from ControllerHandle.
If DriverImageHandle is NULL, then all the drivers currently managing
ControllerHandle are disconnected from ControllerHandle.
@param[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.
@retval 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.
@retval 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.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to disconnect any drivers from
ControllerHandle.
@retval EFI_DEVICE_ERROR The controller could not be disconnected because of a device error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_DISCONNECT_CONTROLLER)(
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE DriverImageHandle, OPTIONAL
IN EFI_HANDLE ChildHandle OPTIONAL
);
//
// ConvertPointer DebugDisposition type.
//
#define EFI_OPTIONAL_PTR 0x00000001
/**
Determines the new virtual address that is to be used on subsequent memory accesses.
@param[in] DebugDisposition Supplies type information for the pointer being converted.
@param[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.
@retval EFI_SUCCESS The pointer pointed to by Address was modified.
@retval EFI_INVALID_PARAMETER 1) Address is NULL.
2) *Address is NULL and DebugDisposition does
not have the EFI_OPTIONAL_PTR bit set.
@retval 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
EFI_STATUS
(EFIAPI *EFI_CONVERT_POINTER)(
IN UINTN DebugDisposition,
IN OUT VOID **Address
);
//
// These types can be ORed together as needed - for example,
// EVT_TIMER might be Ored with EVT_NOTIFY_WAIT or
// EVT_NOTIFY_SIGNAL.
//
#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
//
// The event's NotifyContext pointer points to a runtime memory
// address.
// The event is deprecated in UEFI2.0 and later specifications.
//
#define EVT_RUNTIME_CONTEXT 0x20000000
/**
Invoke a notification event
@param[in] Event Event whose notification function is being invoked.
@param[in] Context The pointer to the notification function's context,
which is implementation-dependent.
**/
typedef
VOID
(EFIAPI *EFI_EVENT_NOTIFY)(
IN EFI_EVENT Event,
IN VOID *Context
);
/**
Creates an event.
@param[in] Type The type of event to create and its mode and attributes.
@param[in] NotifyTpl The task priority level of event notifications, if needed.
@param[in] NotifyFunction The pointer to the event's notification function, if any.
@param[in] NotifyContext The pointer to the notification function's context; corresponds to parameter
Context in the notification function.
@param[out] Event The pointer to the newly created event if the call succeeds; undefined
otherwise.
@retval EFI_SUCCESS The event structure was created.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_OUT_OF_RESOURCES The event could not be allocated.
**/
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 in a group.
@param[in] Type The type of event to create and its mode and attributes.
@param[in] NotifyTpl The task priority level of event notifications,if needed.
@param[in] NotifyFunction The pointer to the event's notification function, if any.
@param[in] NotifyContext The pointer to the notification function's context; corresponds to parameter
Context in the notification function.
@param[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.
@param[out] Event The pointer to the newly created event if the call succeeds; undefined
otherwise.
@retval EFI_SUCCESS The event structure was created.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval 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 OPTIONAL,
IN CONST VOID *NotifyContext OPTIONAL,
IN CONST EFI_GUID *EventGroup OPTIONAL,
OUT EFI_EVENT *Event
);
///
/// Timer delay types
///
typedef enum {
///
/// An event's timer settings is to be cancelled and not trigger time is to be set/
///
TimerCancel,
///
/// An event is to be signaled periodically at a specified interval from the current time.
///
TimerPeriodic,
///
/// An event is to be signaled once at a specified interval from the current time.
///
TimerRelative
} EFI_TIMER_DELAY;
/**
Sets the type of timer and the trigger time for a timer event.
@param[in] Event The timer event that is to be signaled at the specified time.
@param[in] Type The type of time that is specified in TriggerTime.
@param[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.
@retval EFI_SUCCESS The event has been set to be signaled at the requested time.
@retval EFI_INVALID_PARAMETER Event or Type is not valid.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_TIMER)(
IN EFI_EVENT Event,
IN EFI_TIMER_DELAY Type,
IN UINT64 TriggerTime
);
/**
Signals an event.
@param[in] Event The event to signal.
@retval EFI_SUCCESS The event has been signaled.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SIGNAL_EVENT)(
IN EFI_EVENT Event
);
/**
Stops execution until an event is signaled.
@param[in] NumberOfEvents The number of events in the Event array.
@param[in] Event An array of EFI_EVENT.
@param[out] Index The pointer to the index of the event which satisfied the wait condition.
@retval EFI_SUCCESS The event indicated by Index was signaled.
@retval EFI_INVALID_PARAMETER 1) NumberOfEvents is 0.
2) The event indicated by Index is of type
EVT_NOTIFY_SIGNAL.
@retval EFI_UNSUPPORTED The current TPL is not TPL_APPLICATION.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_WAIT_FOR_EVENT)(
IN UINTN NumberOfEvents,
IN EFI_EVENT *Event,
OUT UINTN *Index
);
/**
Closes an event.
@param[in] Event The event to close.
@retval EFI_SUCCESS The event has been closed.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_CLOSE_EVENT)(
IN EFI_EVENT Event
);
/**
Checks whether an event is in the signaled state.
@param[in] Event The event to check.
@retval EFI_SUCCESS The event is in the signaled state.
@retval EFI_NOT_READY The event is not in the signaled state.
@retval EFI_INVALID_PARAMETER Event is of type EVT_NOTIFY_SIGNAL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_CHECK_EVENT)(
IN EFI_EVENT Event
);
//
// Task priority level
//
#define TPL_APPLICATION 4
#define TPL_CALLBACK 8
#define TPL_NOTIFY 16
#define TPL_HIGH_LEVEL 31
/**
Raises a task's priority level and returns its previous level.
@param[in] NewTpl The new task priority level.
@return Previous task priority level
**/
typedef
EFI_TPL
(EFIAPI *EFI_RAISE_TPL)(
IN EFI_TPL NewTpl
);
/**
Restores a task's priority level to its previous value.
@param[in] OldTpl The previous task priority level to restore.
**/
typedef
VOID
(EFIAPI *EFI_RESTORE_TPL)(
IN EFI_TPL OldTpl
);
/**
Returns the value of a variable.
@param[in] VariableName A Null-terminated string that is the name of the vendor's
variable.
@param[in] VendorGuid A unique identifier for the vendor.
@param[out] Attributes If not NULL, a pointer to the memory location to return the
attributes bitmask for the variable.
@param[in, out] DataSize On input, the size in bytes of the return Data buffer.
On output the size of data returned in Data.
@param[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.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The variable was not found.
@retval EFI_BUFFER_TOO_SMALL The DataSize is too small for the result.
@retval EFI_INVALID_PARAMETER VariableName is NULL.
@retval EFI_INVALID_PARAMETER VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER DataSize is NULL.
@retval EFI_INVALID_PARAMETER The DataSize is not too small and Data is NULL.
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.
@retval EFI_SECURITY_VIOLATION The variable could not be retrieved due to an authentication failure.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_VARIABLE)(
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
OUT UINT32 *Attributes, OPTIONAL
IN OUT UINTN *DataSize,
OUT VOID *Data OPTIONAL
);
/**
Enumerates the current variable names.
@param[in, out] VariableNameSize The size of the VariableName buffer. The size must be large
enough to fit input string supplied in VariableName buffer.
@param[in, out] VariableName On input, supplies the last VariableName that was returned
by GetNextVariableName(). On output, returns the Nullterminated
string of the current variable.
@param[in, out] VendorGuid On input, supplies the last VendorGuid that was returned by
GetNextVariableName(). On output, returns the
VendorGuid of the current variable.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The next variable was not found.
@retval EFI_BUFFER_TOO_SMALL The VariableNameSize is too small for the result.
VariableNameSize has been updated with the size needed to complete the request.
@retval EFI_INVALID_PARAMETER VariableNameSize is NULL.
@retval EFI_INVALID_PARAMETER VariableName is NULL.
@retval EFI_INVALID_PARAMETER VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER The input values of VariableName and VendorGuid are not a name and
GUID of an existing variable.
@retval EFI_INVALID_PARAMETER Null-terminator is not found in the first VariableNameSize bytes of
the input VariableName buffer.
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_NEXT_VARIABLE_NAME)(
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid
);
/**
Sets the value of a variable.
@param[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.
@param[in] VendorGuid A unique identifier for the vendor.
@param[in] Attributes Attributes bitmask to set for the variable.
@param[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).
@param[in] Data The contents for the variable.
@retval EFI_SUCCESS The firmware has successfully stored the variable and its data as
defined by the Attributes.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits, name, and GUID was supplied, or the
DataSize exceeds the maximum allowed.
@retval EFI_INVALID_PARAMETER VariableName is an empty string.
@retval EFI_OUT_OF_RESOURCES Not enough storage is available to hold the variable and its data.
@retval EFI_DEVICE_ERROR The variable could not be retrieved due to a hardware error.
@retval EFI_WRITE_PROTECTED The variable in question is read-only.
@retval EFI_WRITE_PROTECTED The variable in question cannot be deleted.
@retval 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.
@retval EFI_NOT_FOUND The variable trying to be updated or deleted was not found.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_VARIABLE)(
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
);
///
/// This provides the capabilities of the
/// real time clock device as exposed through the EFI interfaces.
///
typedef struct {
///
/// Provides the reporting resolution of the real-time clock device in
/// counts per second. For a normal PC-AT CMOS RTC device, this
/// value would be 1 Hz, or 1, to indicate that the device only reports
/// the time to the resolution of 1 second.
///
UINT32 Resolution;
///
/// Provides the timekeeping accuracy of the real-time clock in an
/// error rate of 1E-6 parts per million. For a clock with an accuracy
/// of 50 parts per million, the value in this field would be
/// 50,000,000.
///
UINT32 Accuracy;
///
/// A TRUE indicates that a time set operation clears the device's
/// time below the Resolution reporting level. A FALSE
/// indicates that the state below the Resolution level of the
/// device is not cleared when the time is set. Normal PC-AT CMOS
/// RTC devices set this value to FALSE.
///
BOOLEAN SetsToZero;
} EFI_TIME_CAPABILITIES;
/**
Returns the current time and date information, and the time-keeping capabilities
of the hardware platform.
@param[out] Time A pointer to storage to receive a snapshot of the current time.
@param[out] Capabilities An optional pointer to a buffer to receive the real time clock
device's capabilities.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_INVALID_PARAMETER Time is NULL.
@retval EFI_DEVICE_ERROR The time could not be retrieved due to hardware error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_TIME)(
OUT EFI_TIME *Time,
OUT EFI_TIME_CAPABILITIES *Capabilities OPTIONAL
);
/**
Sets the current local time and date information.
@param[in] Time A pointer to the current time.
@retval EFI_SUCCESS The operation completed successfully.
@retval EFI_INVALID_PARAMETER A time field is out of range.
@retval EFI_DEVICE_ERROR The time could not be set due due to hardware error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_TIME)(
IN EFI_TIME *Time
);
/**
Returns the current wakeup alarm clock setting.
@param[out] Enabled Indicates if the alarm is currently enabled or disabled.
@param[out] Pending Indicates if the alarm signal is pending and requires acknowledgement.
@param[out] Time The current alarm setting.
@retval EFI_SUCCESS The alarm settings were returned.
@retval EFI_INVALID_PARAMETER Enabled is NULL.
@retval EFI_INVALID_PARAMETER Pending is NULL.
@retval EFI_INVALID_PARAMETER Time is NULL.
@retval EFI_DEVICE_ERROR The wakeup time could not be retrieved due to a hardware error.
@retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_WAKEUP_TIME)(
OUT BOOLEAN *Enabled,
OUT BOOLEAN *Pending,
OUT EFI_TIME *Time
);
/**
Sets the system wakeup alarm clock time.
@param[in] Enable Enable or disable the wakeup alarm.
@param[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.
@retval EFI_SUCCESS If Enable is TRUE, then the wakeup alarm was enabled. If
Enable is FALSE, then the wakeup alarm was disabled.
@retval EFI_INVALID_PARAMETER A time field is out of range.
@retval EFI_DEVICE_ERROR The wakeup time could not be set due to a hardware error.
@retval EFI_UNSUPPORTED A wakeup timer is not supported on this platform.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_WAKEUP_TIME)(
IN BOOLEAN Enable,
IN EFI_TIME *Time OPTIONAL
);
/**
Loads an EFI image into memory.
@param[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.
@param[in] ParentImageHandle The caller's image handle.
@param[in] DevicePath The DeviceHandle specific file path from which the image is
loaded.
@param[in] SourceBuffer If not NULL, a pointer to the memory location containing a copy
of the image to be loaded.
@param[in] SourceSize The size in bytes of SourceBuffer. Ignored if SourceBuffer is NULL.
@param[out] ImageHandle The pointer to the returned image handle that is created when the
image is successfully loaded.
@retval EFI_SUCCESS Image was loaded into memory correctly.
@retval EFI_NOT_FOUND Both SourceBuffer and DevicePath are NULL.
@retval EFI_INVALID_PARAMETER One or more parametes are invalid.
@retval EFI_UNSUPPORTED The image type is not supported.
@retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient resources.
@retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
understood.
@retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
@retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
image from being loaded. NULL is returned in *ImageHandle.
@retval 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_LOAD)(
IN BOOLEAN BootPolicy,
IN EFI_HANDLE ParentImageHandle,
IN EFI_DEVICE_PATH_PROTOCOL *DevicePath,
IN VOID *SourceBuffer OPTIONAL,
IN UINTN SourceSize,
OUT EFI_HANDLE *ImageHandle
);
/**
Transfers control to a loaded image's entry point.
@param[in] ImageHandle Handle of image to be started.
@param[out] ExitDataSize The pointer to the size, in bytes, of ExitData.
@param[out] ExitData The pointer to a pointer to a data buffer that includes a Null-terminated
string, optionally followed by additional binary data.
@retval EFI_INVALID_PARAMETER ImageHandle is either an invalid image handle or the image
has already been initialized with StartImage.
@retval EFI_SECURITY_VIOLATION The current platform policy specifies that the image should not be started.
@return Exit code from image
**/
typedef
EFI_STATUS
(EFIAPI *EFI_IMAGE_START)(
IN EFI_HANDLE ImageHandle,
OUT UINTN *ExitDataSize,
OUT CHAR16 **ExitData OPTIONAL
);
/**
Terminates a loaded EFI image and returns control to boot services.
@param[in] ImageHandle Handle that identifies the image. This parameter is passed to the
image on entry.
@param[in] ExitStatus The image's exit code.
@param[in] ExitDataSize The size, in bytes, of ExitData. Ignored if ExitStatus is EFI_SUCCESS.
@param[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().
@retval EFI_SUCCESS The image specified by ImageHandle was unloaded.
@retval 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)(
IN EFI_HANDLE ImageHandle,
IN EFI_STATUS ExitStatus,
IN UINTN ExitDataSize,
IN CHAR16 *ExitData OPTIONAL
);
/**
Unloads an image.
@param[in] ImageHandle Handle that identifies the image to be unloaded.
@retval EFI_SUCCESS The image has been unloaded.
@retval EFI_INVALID_PARAMETER ImageHandle is not a valid image handle.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_IMAGE_UNLOAD)(
IN EFI_HANDLE ImageHandle
);
/**
Terminates all boot services.
@param[in] ImageHandle Handle that identifies the exiting image.
@param[in] MapKey Key to the latest memory map.
@retval EFI_SUCCESS Boot services have been terminated.
@retval EFI_INVALID_PARAMETER MapKey is incorrect.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_EXIT_BOOT_SERVICES)(
IN EFI_HANDLE ImageHandle,
IN UINTN MapKey
);
/**
Induces a fine-grained stall.
@param[in] Microseconds The number of microseconds to stall execution.
@retval EFI_SUCCESS Execution was stalled at least the requested number of
Microseconds.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_STALL)(
IN UINTN Microseconds
);
/**
Sets the system's watchdog timer.
@param[in] Timeout The number of seconds to set the watchdog timer to.
@param[in] WatchdogCode The numeric code to log on a watchdog timer timeout event.
@param[in] DataSize The size, in bytes, of WatchdogData.
@param[in] WatchdogData A data buffer that includes a Null-terminated string, optionally
followed by additional binary data.
@retval EFI_SUCCESS The timeout has been set.
@retval EFI_INVALID_PARAMETER The supplied WatchdogCode is invalid.
@retval EFI_UNSUPPORTED The system does not have a watchdog timer.
@retval EFI_DEVICE_ERROR The watchdog timer could not be programmed due to a hardware
error.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_SET_WATCHDOG_TIMER)(
IN UINTN Timeout,
IN UINT64 WatchdogCode,
IN UINTN DataSize,
IN CHAR16 *WatchdogData OPTIONAL
);
/**
Resets the entire platform.
@param[in] ResetType The type of reset to perform.
@param[in] ResetStatus The status code for the reset.
@param[in] DataSize The size, in bytes, of ResetData.
@param[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. ResetData is only
valid if ResetStatus is something other than EFI_SUCCESS
unless the ResetType is EfiResetPlatformSpecific
where a minimum amount of ResetData is always required.
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_RESET_SYSTEM)(
IN EFI_RESET_TYPE ResetType,
IN EFI_STATUS ResetStatus,
IN UINTN DataSize,
IN VOID *ResetData OPTIONAL
);
/**
Returns a monotonically increasing count for the platform.
@param[out] Count The pointer to returned value.
@retval EFI_SUCCESS The next monotonic count was returned.
@retval EFI_INVALID_PARAMETER Count is NULL.
@retval EFI_DEVICE_ERROR The device is not functioning properly.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_NEXT_MONOTONIC_COUNT)(
OUT UINT64 *Count
);
/**
Returns the next high 32 bits of the platform's monotonic counter.
@param[out] HighCount The pointer to returned value.
@retval EFI_SUCCESS The next high monotonic count was returned.
@retval EFI_INVALID_PARAMETER HighCount is NULL.
@retval EFI_DEVICE_ERROR The device is not functioning properly.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_GET_NEXT_HIGH_MONO_COUNT)(
OUT UINT32 *HighCount
);
/**
Computes and returns a 32-bit CRC for a data buffer.
@param[in] Data A pointer to the buffer on which the 32-bit CRC is to be computed.
@param[in] DataSize The number of bytes in the buffer Data.
@param[out] Crc32 The 32-bit CRC that was computed for the data buffer specified by Data
and DataSize.
@retval EFI_SUCCESS The 32-bit CRC was computed for the data buffer and returned in
Crc32.
@retval EFI_INVALID_PARAMETER Data is NULL.
@retval EFI_INVALID_PARAMETER Crc32 is NULL.
@retval EFI_INVALID_PARAMETER DataSize is 0.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_CALCULATE_CRC32)(
IN VOID *Data,
IN UINTN DataSize,
OUT UINT32 *Crc32
);
/**
Copies the contents of one buffer to another buffer.
@param[in] Destination The pointer to the destination buffer of the memory copy.
@param[in] Source The pointer to the source buffer of the memory copy.
@param[in] Length Number of bytes to copy from Source to Destination.
**/
typedef
VOID
(EFIAPI *EFI_COPY_MEM)(
IN VOID *Destination,
IN VOID *Source,
IN UINTN Length
);
/**
The SetMem() function fills a buffer with a specified value.
@param[in] Buffer The pointer to the buffer to fill.
@param[in] Size Number of bytes in Buffer to fill.
@param[in] Value Value to fill Buffer with.
**/
typedef
VOID
(EFIAPI *EFI_SET_MEM)(
IN VOID *Buffer,
IN UINTN Size,
IN UINT8 Value
);
///
/// Enumeration of EFI Interface Types
///
typedef enum {
///
/// Indicates that the supplied protocol interface is supplied in native form.
///
EFI_NATIVE_INTERFACE
} EFI_INTERFACE_TYPE;
/**
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()
@param[in, out] Handle A pointer to the EFI_HANDLE on which the interface is to be installed.
@param[in] Protocol The numeric ID of the protocol interface.
@param[in] InterfaceType Indicates whether Interface is supplied in native form.
@param[in] Interface A pointer to the protocol interface.
@retval EFI_SUCCESS The protocol interface was installed.
@retval EFI_OUT_OF_RESOURCES Space for a new handle could not be allocated.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
@retval EFI_INVALID_PARAMETER InterfaceType is not EFI_NATIVE_INTERFACE.
@retval 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 one or more protocol interfaces into the boot services environment.
@param[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.
@param ... A variable argument list containing pairs of protocol GUIDs and protocol
interfaces.
@retval EFI_SUCCESS All the protocol interface was installed.
@retval EFI_OUT_OF_RESOURCES There was not enough memory in pool to install all the protocols.
@retval EFI_ALREADY_STARTED A Device Path Protocol instance was passed in that is already present in
the handle database.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Protocol is already installed on the handle specified by Handle.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES)(
IN OUT EFI_HANDLE *Handle,
...
);
/**
Reinstalls a protocol interface on a device handle.
@param[in] Handle Handle on which the interface is to be reinstalled.
@param[in] Protocol The numeric ID of the interface.
@param[in] OldInterface A pointer to the old interface. NULL can be used if a structure is not
associated with Protocol.
@param[in] NewInterface A pointer to the new interface.
@retval EFI_SUCCESS The protocol interface was reinstalled.
@retval EFI_NOT_FOUND The OldInterface on the handle was not found.
@retval EFI_ACCESS_DENIED The protocol interface could not be reinstalled,
because OldInterface is still being used by a
driver that will not release it.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_REINSTALL_PROTOCOL_INTERFACE)(
IN EFI_HANDLE Handle,
IN EFI_GUID *Protocol,
IN VOID *OldInterface,
IN VOID *NewInterface
);
/**
Removes a protocol interface from a device handle. It is recommended that
UninstallMultipleProtocolInterfaces() be used in place of
UninstallProtocolInterface().
@param[in] Handle The handle on which the interface was installed.
@param[in] Protocol The numeric ID of the interface.
@param[in] Interface A pointer to the interface.
@retval EFI_SUCCESS The interface was removed.
@retval EFI_NOT_FOUND The interface was not found.
@retval EFI_ACCESS_DENIED The interface was not removed because the interface
is still being used by a driver.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_UNINSTALL_PROTOCOL_INTERFACE)(
IN EFI_HANDLE Handle,
IN EFI_GUID *Protocol,
IN VOID *Interface
);
/**
Removes one or more protocol interfaces into the boot services environment.
@param[in] Handle The handle to remove the protocol interfaces from.
@param ... A variable argument list containing pairs of protocol GUIDs and
protocol interfaces.
@retval EFI_SUCCESS All the protocol interfaces were removed.
@retval EFI_INVALID_PARAMETER One of the protocol interfaces was not previously installed on Handle.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES)(
IN EFI_HANDLE Handle,
...
);
/**
Queries a handle to determine if it supports a specified protocol.
@param[in] Handle The handle being queried.
@param[in] Protocol The published unique identifier of the protocol.
@param[out] Interface Supplies the address where a pointer to the corresponding Protocol
Interface is returned.
@retval EFI_SUCCESS The interface information for the specified protocol was returned.
@retval EFI_UNSUPPORTED The device does not support the specified protocol.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
@retval EFI_INVALID_PARAMETER Interface is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_HANDLE_PROTOCOL)(
IN EFI_HANDLE Handle,
IN EFI_GUID *Protocol,
OUT VOID **Interface
);
#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
/**
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.
@param[in] Handle The handle for the protocol interface that is being opened.
@param[in] Protocol The published unique identifier of the protocol.
@param[out] Interface Supplies the address where a pointer to the corresponding Protocol
Interface is returned.
@param[in] AgentHandle The handle of the agent that is opening the protocol interface
specified by Protocol and Interface.
@param[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.
@param[in] Attributes The open mode of the protocol interface specified by Handle
and Protocol.
@retval EFI_SUCCESS An item was added to the open list for the protocol interface, and the
protocol interface was returned in Interface.
@retval EFI_UNSUPPORTED Handle does not support Protocol.
@retval EFI_INVALID_PARAMETER One or more parameters are invalid.
@retval EFI_ACCESS_DENIED Required attributes can't be supported in current environment.
@retval 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)(
IN EFI_HANDLE Handle,
IN EFI_GUID *Protocol,
OUT VOID **Interface, OPTIONAL
IN EFI_HANDLE AgentHandle,
IN EFI_HANDLE ControllerHandle,
IN UINT32 Attributes
);
/**
Closes a protocol on a handle that was opened using OpenProtocol().
@param[in] Handle The handle for the protocol interface that was previously opened
with OpenProtocol(), and is now being closed.
@param[in] Protocol The published unique identifier of the protocol.
@param[in] AgentHandle The handle of the agent that is closing the protocol interface.
@param[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.
@retval EFI_SUCCESS The protocol instance was closed.
@retval 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.
@retval 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_CLOSE_PROTOCOL)(
IN EFI_HANDLE Handle,
IN EFI_GUID *Protocol,
IN EFI_HANDLE AgentHandle,
IN EFI_HANDLE ControllerHandle
);
///
/// EFI Oprn Protocol Information Entry
///
typedef struct {
EFI_HANDLE AgentHandle;
EFI_HANDLE ControllerHandle;
UINT32 Attributes;
UINT32 OpenCount;
} EFI_OPEN_PROTOCOL_INFORMATION_ENTRY;
/**
Retrieves the list of agents that currently have a protocol interface opened.
@param[in] Handle The handle for the protocol interface that is being queried.
@param[in] Protocol The published unique identifier of the protocol.
@param[out] EntryBuffer A pointer to a buffer of open protocol information in the form of
EFI_OPEN_PROTOCOL_INFORMATION_ENTRY structures.
@param[out] EntryCount A pointer to the number of entries in EntryBuffer.
@retval EFI_SUCCESS The open protocol information was returned in EntryBuffer, and the
number of entries was returned EntryCount.
@retval EFI_OUT_OF_RESOURCES There are not enough resources available to allocate EntryBuffer.
@retval EFI_NOT_FOUND Handle does not support the protocol specified by Protocol.
**/
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 protocol interface GUIDs that are installed on a handle in a buffer allocated
from pool.
@param[in] Handle The handle from which to retrieve the list of protocol interface
GUIDs.
@param[out] ProtocolBuffer A pointer to the list of protocol interface GUID pointers that are
installed on Handle.
@param[out] ProtocolBufferCount A pointer to the number of GUID pointers present in
ProtocolBuffer.
@retval 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.
@retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the results.
@retval EFI_INVALID_PARAMETER Handle is NULL.
@retval EFI_INVALID_PARAMETER Handle is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ProtocolBuffer is NULL.
@retval EFI_INVALID_PARAMETER ProtocolBufferCount is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PROTOCOLS_PER_HANDLE)(
IN EFI_HANDLE Handle,
OUT EFI_GUID ***ProtocolBuffer,
OUT UINTN *ProtocolBufferCount
);
/**
Creates an event that is to be signaled whenever an interface is installed for a specified protocol.
@param[in] Protocol The numeric ID of the protocol for which the event is to be registered.
@param[in] Event Event that is to be signaled whenever a protocol interface is registered
for Protocol.
@param[out] Registration A pointer to a memory location to receive the registration value.
@retval EFI_SUCCESS The notification event has been registered.
@retval EFI_OUT_OF_RESOURCES Space for the notification event could not be allocated.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
@retval EFI_INVALID_PARAMETER Event is NULL.
@retval EFI_INVALID_PARAMETER Registration is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_REGISTER_PROTOCOL_NOTIFY)(
IN EFI_GUID *Protocol,
IN EFI_EVENT Event,
OUT VOID **Registration
);
///
/// Enumeration of EFI Locate Search Types
///
typedef enum {
///
/// Retrieve all the handles in the handle database.
///
AllHandles,
///
/// Retrieve the next handle fron a RegisterProtocolNotify() event.
///
ByRegisterNotify,
///
/// Retrieve the set of handles from the handle database that support a
/// specified protocol.
///
ByProtocol
} EFI_LOCATE_SEARCH_TYPE;
/**
Returns an array of handles that support a specified protocol.
@param[in] SearchType Specifies which handle(s) are to be returned.
@param[in] Protocol Specifies the protocol to search by.
@param[in] SearchKey Specifies the search key.
@param[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).
@param[out] Buffer The buffer in which the array is returned.
@retval EFI_SUCCESS The array of handles was returned.
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_BUFFER_TOO_SMALL The BufferSize is too small for the result.
@retval EFI_INVALID_PARAMETER SearchType is not a member of EFI_LOCATE_SEARCH_TYPE.
@retval EFI_INVALID_PARAMETER SearchType is ByRegisterNotify and SearchKey is NULL.
@retval EFI_INVALID_PARAMETER SearchType is ByProtocol and Protocol is NULL.
@retval EFI_INVALID_PARAMETER One or more matches are found and BufferSize is NULL.
@retval EFI_INVALID_PARAMETER BufferSize is large enough for the result and Buffer is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_LOCATE_HANDLE)(
IN EFI_LOCATE_SEARCH_TYPE SearchType,
IN EFI_GUID *Protocol, OPTIONAL
IN VOID *SearchKey, OPTIONAL
IN OUT UINTN *BufferSize,
OUT EFI_HANDLE *Buffer
);
/**
Locates the handle to a device on the device path that supports the specified protocol.
@param[in] Protocol Specifies the protocol to search for.
@param[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.
@param[out] Device A pointer to the returned device handle.
@retval EFI_SUCCESS The resulting handle was returned.
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_INVALID_PARAMETER Protocol is NULL.
@retval EFI_INVALID_PARAMETER DevicePath is NULL.
@retval EFI_INVALID_PARAMETER A handle matched the search and Device is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_LOCATE_DEVICE_PATH)(
IN EFI_GUID *Protocol,
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
OUT EFI_HANDLE *Device
);
/**
Adds, updates, or removes a configuration table entry from the EFI System Table.
@param[in] Guid A pointer to the GUID for the entry to add, update, or remove.
@param[in] Table A pointer to the configuration table for the entry to add, update, or
remove. May be NULL.
@retval EFI_SUCCESS The (Guid, Table) pair was added, updated, or removed.
@retval EFI_NOT_FOUND An attempt was made to delete a nonexistent entry.
@retval EFI_INVALID_PARAMETER Guid is NULL.
@retval EFI_OUT_OF_RESOURCES There is not enough memory available to complete the operation.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_INSTALL_CONFIGURATION_TABLE)(
IN EFI_GUID *Guid,
IN VOID *Table
);
/**
Returns an array of handles that support the requested protocol in a buffer allocated from pool.
@param[in] SearchType Specifies which handle(s) are to be returned.
@param[in] Protocol Provides the protocol to search by.
This parameter is only valid for a SearchType of ByProtocol.
@param[in] SearchKey Supplies the search key depending on the SearchType.
@param[in, out] NoHandles The number of handles returned in Buffer.
@param[out] Buffer A pointer to the buffer to return the requested array of handles that
support Protocol.
@retval EFI_SUCCESS The array of handles was returned in Buffer, and the number of
handles in Buffer was returned in NoHandles.
@retval EFI_NOT_FOUND No handles match the search.
@retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the matching results.
@retval EFI_INVALID_PARAMETER NoHandles is NULL.
@retval EFI_INVALID_PARAMETER Buffer is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_LOCATE_HANDLE_BUFFER)(
IN EFI_LOCATE_SEARCH_TYPE SearchType,
IN EFI_GUID *Protocol, OPTIONAL
IN VOID *SearchKey, OPTIONAL
IN OUT UINTN *NoHandles,
OUT EFI_HANDLE **Buffer
);
/**
Returns the first protocol instance that matches the given protocol.
@param[in] Protocol Provides the protocol to search for.
@param[in] Registration Optional registration key returned from
RegisterProtocolNotify().
@param[out] Interface On return, a pointer to the first interface that matches Protocol and
Registration.
@retval EFI_SUCCESS A protocol instance matching Protocol was found and returned in
Interface.
@retval EFI_NOT_FOUND No protocol instances were found that match Protocol and
Registration.
@retval EFI_INVALID_PARAMETER Interface is NULL.
Protocol is NULL.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_LOCATE_PROTOCOL)(
IN EFI_GUID *Protocol,
IN VOID *Registration, OPTIONAL
OUT VOID **Interface
);
///
/// EFI Capsule Block Descriptor
///
typedef struct {
///
/// Length in bytes of the data pointed to by DataBlock/ContinuationPointer.
///
UINT64 Length;
union {
///
/// Physical address of the data block. This member of the union is
/// used if Length is not equal to zero.
///
EFI_PHYSICAL_ADDRESS DataBlock;
///
/// Physical address of another block of
/// EFI_CAPSULE_BLOCK_DESCRIPTOR structures. This
/// member of the union is used if Length is equal to zero. If
/// ContinuationPointer is zero this entry represents the end of the list.
///
EFI_PHYSICAL_ADDRESS ContinuationPointer;
} Union;
} EFI_CAPSULE_BLOCK_DESCRIPTOR;
///
/// EFI Capsule Header.
///
typedef struct {
///
/// A GUID that defines the contents of a capsule.
///
EFI_GUID CapsuleGuid;
///
/// The size of the capsule header. This may be larger than the size of
/// the EFI_CAPSULE_HEADER since CapsuleGuid may imply
/// extended header entries
///
UINT32 HeaderSize;
///
/// Bit-mapped list describing the capsule attributes. The Flag values
/// of 0x0000 - 0xFFFF are defined by CapsuleGuid. Flag values
/// of 0x10000 - 0xFFFFFFFF are defined by this specification
///
UINT32 Flags;
///
/// Size in bytes of the capsule.
///
UINT32 CapsuleImageSize;
} EFI_CAPSULE_HEADER;
///
/// The EFI System Table entry must point to an array of capsules
/// that contain the same CapsuleGuid value. The array must be
/// prefixed by a UINT32 that represents the size of the array of capsules.
///
typedef struct {
///
/// the size of the array of capsules.
///
UINT32 CapsuleArrayNumber;
///
/// Point to an array of capsules that contain the same CapsuleGuid value.
///
VOID* CapsulePtr[1];
} EFI_CAPSULE_TABLE;
#define CAPSULE_FLAGS_PERSIST_ACROSS_RESET 0x00010000
#define CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE 0x00020000
#define CAPSULE_FLAGS_INITIATE_RESET 0x00040000
/**
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.
@param[in] CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
being passed into update capsule.
@param[in] CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
CaspuleHeaderArray.
@param[in] ScatterGatherList Physical pointer to a set of
EFI_CAPSULE_BLOCK_DESCRIPTOR that describes the
location in physical memory of a set of capsules.
@retval EFI_SUCCESS Valid capsule was passed. If
CAPSULE_FLAGS_PERSIT_ACROSS_RESET is not set, the
capsule has been successfully processed by the firmware.
@retval EFI_INVALID_PARAMETER CapsuleSize is NULL, or an incompatible set of flags were
set in the capsule header.
@retval EFI_INVALID_PARAMETER CapsuleCount is 0.
@retval EFI_DEVICE_ERROR The capsule update was started, but failed due to a device error.
@retval EFI_UNSUPPORTED The capsule type is not supported on this platform.
@retval 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().
@retval 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_UPDATE_CAPSULE)(
IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL
);
/**
Returns if the capsule can be supported via UpdateCapsule().
@param[in] CapsuleHeaderArray Virtual pointer to an array of virtual pointers to the capsules
being passed into update capsule.
@param[in] CapsuleCount Number of pointers to EFI_CAPSULE_HEADER in
CaspuleHeaderArray.
@param[out] MaxiumCapsuleSize On output the maximum size that UpdateCapsule() can
support as an argument to UpdateCapsule() via
CapsuleHeaderArray and ScatterGatherList.
@param[out] ResetType Returns the type of reset required for the capsule update.
@retval EFI_SUCCESS Valid answer returned.
@retval EFI_UNSUPPORTED The capsule type is not supported on this platform, and
MaximumCapsuleSize and ResetType are undefined.
@retval EFI_INVALID_PARAMETER MaximumCapsuleSize is NULL.
@retval 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().
@retval 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_CAPSULE_CAPABILITIES)(
IN EFI_CAPSULE_HEADER **CapsuleHeaderArray,
IN UINTN CapsuleCount,
OUT UINT64 *MaximumCapsuleSize,
OUT EFI_RESET_TYPE *ResetType
);
/**
Returns information about the EFI variables.
@param[in] Attributes Attributes bitmask to specify the type of variables on
which to return information.
@param[out] MaximumVariableStorageSize On output the maximum size of the storage space
available for the EFI variables associated with the
attributes specified.
@param[out] RemainingVariableStorageSize Returns the remaining size of the storage space
available for the EFI variables associated with the
attributes specified.
@param[out] MaximumVariableSize Returns the maximum size of the individual EFI
variables associated with the attributes specified.
@retval EFI_SUCCESS Valid answer returned.
@retval EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied
@retval EFI_UNSUPPORTED The attribute is not supported on this platform, and the
MaximumVariableStorageSize,
RemainingVariableStorageSize, MaximumVariableSize
are undefined.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_QUERY_VARIABLE_INFO)(
IN UINT32 Attributes,
OUT UINT64 *MaximumVariableStorageSize,
OUT UINT64 *RemainingVariableStorageSize,
OUT UINT64 *MaximumVariableSize
);
//
// Firmware should stop at a firmware user interface on next boot
//
#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
//
// EFI Runtime Services Table
//
#define EFI_SYSTEM_TABLE_SIGNATURE SIGNATURE_64 ('I','B','I',' ','S','Y','S','T')
#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
///
/// EFI Runtime Services Table.
///
typedef struct {
///
/// The table header for the EFI Runtime Services Table.
///
EFI_TABLE_HEADER Hdr;
//
// Time Services
//
EFI_GET_TIME GetTime;
EFI_SET_TIME SetTime;
EFI_GET_WAKEUP_TIME GetWakeupTime;
EFI_SET_WAKEUP_TIME SetWakeupTime;
//
// Virtual Memory Services
//
EFI_SET_VIRTUAL_ADDRESS_MAP SetVirtualAddressMap;
EFI_CONVERT_POINTER ConvertPointer;
//
// Variable Services
//
EFI_GET_VARIABLE GetVariable;
EFI_GET_NEXT_VARIABLE_NAME GetNextVariableName;
EFI_SET_VARIABLE SetVariable;
//
// Miscellaneous Services
//
EFI_GET_NEXT_HIGH_MONO_COUNT GetNextHighMonotonicCount;
EFI_RESET_SYSTEM ResetSystem;
//
// UEFI 2.0 Capsule Services
//
EFI_UPDATE_CAPSULE UpdateCapsule;
EFI_QUERY_CAPSULE_CAPABILITIES QueryCapsuleCapabilities;
//
// Miscellaneous UEFI 2.0 Service
//
EFI_QUERY_VARIABLE_INFO QueryVariableInfo;
} EFI_RUNTIME_SERVICES;
#define EFI_BOOT_SERVICES_SIGNATURE SIGNATURE_64 ('B','O','O','T','S','E','R','V')
#define EFI_BOOT_SERVICES_REVISION EFI_SPECIFICATION_VERSION
///
/// EFI Boot Services Table.
///
typedef struct {
///
/// The table header for the EFI Boot Services Table.
///
EFI_TABLE_HEADER Hdr;
//
// Task Priority Services
//
EFI_RAISE_TPL RaiseTPL;
EFI_RESTORE_TPL RestoreTPL;
//
// Memory Services
//
EFI_ALLOCATE_PAGES AllocatePages;
EFI_FREE_PAGES FreePages;
EFI_GET_MEMORY_MAP GetMemoryMap;
EFI_ALLOCATE_POOL AllocatePool;
EFI_FREE_POOL FreePool;
//
// Event & Timer Services
//
EFI_CREATE_EVENT CreateEvent;
EFI_SET_TIMER SetTimer;
EFI_WAIT_FOR_EVENT WaitForEvent;
EFI_SIGNAL_EVENT SignalEvent;
EFI_CLOSE_EVENT CloseEvent;
EFI_CHECK_EVENT CheckEvent;
//
// Protocol Handler Services
//
EFI_INSTALL_PROTOCOL_INTERFACE InstallProtocolInterface;
EFI_REINSTALL_PROTOCOL_INTERFACE ReinstallProtocolInterface;
EFI_UNINSTALL_PROTOCOL_INTERFACE UninstallProtocolInterface;
EFI_HANDLE_PROTOCOL HandleProtocol;
VOID *Reserved;
EFI_REGISTER_PROTOCOL_NOTIFY RegisterProtocolNotify;
EFI_LOCATE_HANDLE LocateHandle;
EFI_LOCATE_DEVICE_PATH LocateDevicePath;
EFI_INSTALL_CONFIGURATION_TABLE InstallConfigurationTable;
//
// Image Services
//
EFI_IMAGE_LOAD LoadImage;
EFI_IMAGE_START StartImage;
EFI_EXIT Exit;
EFI_IMAGE_UNLOAD UnloadImage;
EFI_EXIT_BOOT_SERVICES ExitBootServices;
//
// Miscellaneous Services
//
EFI_GET_NEXT_MONOTONIC_COUNT GetNextMonotonicCount;
EFI_STALL Stall;
EFI_SET_WATCHDOG_TIMER SetWatchdogTimer;
//
// DriverSupport Services
//
EFI_CONNECT_CONTROLLER ConnectController;
EFI_DISCONNECT_CONTROLLER DisconnectController;
//
// Open and Close Protocol Services
//
EFI_OPEN_PROTOCOL OpenProtocol;
EFI_CLOSE_PROTOCOL CloseProtocol;
EFI_OPEN_PROTOCOL_INFORMATION OpenProtocolInformation;
//
// Library Services
//
EFI_PROTOCOLS_PER_HANDLE ProtocolsPerHandle;
EFI_LOCATE_HANDLE_BUFFER LocateHandleBuffer;
EFI_LOCATE_PROTOCOL LocateProtocol;
EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES InstallMultipleProtocolInterfaces;
EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES UninstallMultipleProtocolInterfaces;
//
// 32-bit CRC Services
//
EFI_CALCULATE_CRC32 CalculateCrc32;
//
// Miscellaneous Services
//
EFI_COPY_MEM CopyMem;
EFI_SET_MEM SetMem;
EFI_CREATE_EVENT_EX CreateEventEx;
} EFI_BOOT_SERVICES;
///
/// Contains a set of GUID/pointer pairs comprised of the ConfigurationTable field in the
/// EFI System Table.
///
typedef struct {
///
/// The 128-bit GUID value that uniquely identifies the system configuration table.
///
EFI_GUID VendorGuid;
///
/// A pointer to the table associated with VendorGuid.
///
VOID *VendorTable;
} EFI_CONFIGURATION_TABLE;
///
/// EFI System Table
///
typedef struct {
///
/// The table header for the EFI System Table.
///
EFI_TABLE_HEADER Hdr;
///
/// A pointer to a null terminated string that identifies the vendor
/// that produces the system firmware for the platform.
///
CHAR16 *FirmwareVendor;
///
/// A firmware vendor specific value that identifies the revision
/// of the system firmware for the platform.
///
UINT32 FirmwareRevision;
///
/// The handle for the active console input device. This handle must support
/// EFI_SIMPLE_TEXT_INPUT_PROTOCOL and EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.
///
EFI_HANDLE ConsoleInHandle;
///
/// A pointer to the EFI_SIMPLE_TEXT_INPUT_PROTOCOL interface that is
/// associated with ConsoleInHandle.
///
EFI_SIMPLE_TEXT_INPUT_PROTOCOL *ConIn;
///
/// The handle for the active console output device.
///
EFI_HANDLE ConsoleOutHandle;
///
/// A pointer to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL interface
/// that is associated with ConsoleOutHandle.
///
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *ConOut;
///
/// The handle for the active standard error console device.
/// This handle must support the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL.
///
EFI_HANDLE StandardErrorHandle;
///
/// A pointer to the EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL interface
/// that is associated with StandardErrorHandle.
///
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL *StdErr;
///
/// A pointer to the EFI Runtime Services Table.
///
EFI_RUNTIME_SERVICES *RuntimeServices;
///
/// A pointer to the EFI Boot Services Table.
///
EFI_BOOT_SERVICES *BootServices;
///
/// The number of system configuration tables in the buffer ConfigurationTable.
///
UINTN NumberOfTableEntries;
///
/// A pointer to the system configuration tables.
/// The number of entries in the table is NumberOfTableEntries.
///
EFI_CONFIGURATION_TABLE *ConfigurationTable;
} EFI_SYSTEM_TABLE;
/**
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.
@param[in] ImageHandle The firmware allocated handle for the UEFI image.
@param[in] SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The operation completed successfully.
@retval Others An unexpected error occurred.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_IMAGE_ENTRY_POINT)(
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
);
//
// EFI Load Option. This data structure describes format of UEFI boot option variables.
//
// NOTE: EFI Load Option is a byte packed buffer of variable length fields.
// The first two fields have fixed length. They are declared as members of the
// EFI_LOAD_OPTION structure. All the other fields are variable length fields.
// They are listed in the comment block below for reference purposes.
//
#pragma pack(1)
typedef struct _EFI_LOAD_OPTION {
///
/// The attributes for this load option entry. All unused bits must be zero
/// and are reserved by the UEFI specification for future growth.
///
UINT32 Attributes;
///
/// Length in bytes of the FilePathList. OptionalData starts at offset
/// sizeof(UINT32) + sizeof(UINT16) + StrSize(Description) + FilePathListLength
/// of the EFI_LOAD_OPTION descriptor.
///
UINT16 FilePathListLength;
///
/// The user readable description for the load option.
/// This field ends with a Null character.
///
// CHAR16 Description[];
///
/// A packed array of UEFI device paths. The first element of the array is a
/// device path that describes the device and location of the Image for this
/// load option. The FilePathList[0] is specific to the device type. Other
/// device paths may optionally exist in the FilePathList, but their usage is
/// OSV specific. Each element in the array is variable length, and ends at
/// the device path end structure. Because the size of Description is
/// arbitrary, this data structure is not guaranteed to be aligned on a
/// natural boundary. This data structure may have to be copied to an aligned
/// natural boundary before it is used.
///
// EFI_DEVICE_PATH_PROTOCOL FilePathList[];
///
/// The remaining bytes in the load option descriptor are a binary data buffer
/// that is passed to the loaded image. If the field is zero bytes long, a
/// NULL pointer is passed to the loaded image. The number of bytes in
/// OptionalData can be computed by subtracting the starting offset of
/// OptionalData from total size in bytes of the EFI_LOAD_OPTION.
///
// UINT8 OptionalData[];
} EFI_LOAD_OPTION;
#pragma pack()
//
// EFI Load Options Attributes
//
#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
///
/// EFI Boot Key Data
///
typedef union {
struct {
///
/// Indicates the revision of the EFI_KEY_OPTION structure. This revision level should be 0.
///
UINT32 Revision : 8;
///
/// Either the left or right Shift keys must be pressed (1) or must not be pressed (0).
///
UINT32 ShiftPressed : 1;
///
/// Either the left or right Control keys must be pressed (1) or must not be pressed (0).
///
UINT32 ControlPressed : 1;
///
/// Either the left or right Alt keys must be pressed (1) or must not be pressed (0).
///
UINT32 AltPressed : 1;
///
/// Either the left or right Logo keys must be pressed (1) or must not be pressed (0).
///
UINT32 LogoPressed : 1;
///
/// The Menu key must be pressed (1) or must not be pressed (0).
///
UINT32 MenuPressed : 1;
///
/// The SysReq key must be pressed (1) or must not be pressed (0).
///
UINT32 SysReqPressed : 1;
UINT32 Reserved : 16;
///
/// Specifies the actual number of entries in EFI_KEY_OPTION.Keys, from 0-3. If
/// zero, then only the shift state is considered. If more than one, then the boot option will
/// only be launched if all of the specified keys are pressed with the same shift state.
///
UINT32 InputKeyCount : 2;
} Options;
UINT32 PackedValue;
} EFI_BOOT_KEY_DATA;
///
/// EFI Key Option.
///
#pragma pack(1)
typedef struct {
///
/// Specifies options about how the key will be processed.
///
EFI_BOOT_KEY_DATA KeyData;
///
/// The CRC-32 which should match the CRC-32 of the entire EFI_LOAD_OPTION to
/// which BootOption refers. If the CRC-32s do not match this value, then this key
/// option is ignored.
///
UINT32 BootOptionCrc;
///
/// The Boot#### option which will be invoked if this key is pressed and the boot option
/// is active (LOAD_OPTION_ACTIVE is set).
///
UINT16 BootOption;
///
/// The key codes to compare against those returned by the
/// EFI_SIMPLE_TEXT_INPUT and EFI_SIMPLE_TEXT_INPUT_EX protocols.
/// The number of key codes (0-3) is specified by the EFI_KEY_CODE_COUNT field in KeyOptions.
///
//EFI_INPUT_KEY Keys[];
} EFI_KEY_OPTION;
#pragma pack()
//
// EFI File location to boot from on removable media devices
//
#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"
#if defined (MDE_CPU_IA32)
#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_IA32
#elif defined (MDE_CPU_X64)
#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_X64
#elif defined (MDE_CPU_EBC)
#elif defined (MDE_CPU_ARM)
#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_ARM
#elif defined (MDE_CPU_AARCH64)
#define EFI_REMOVABLE_MEDIA_FILE_NAME EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64
#else
#error Unknown Processor Type
#endif
//
// The directory within the active EFI System Partition defined for delivery of capsule to firmware
//
#define EFI_CAPSULE_FILE_DIRECTORY L"\\EFI\\UpdateCapsule\\"
#include <Uefi/UefiPxe.h>
#include <Uefi/UefiGpt.h>
#include <Uefi/UefiInternalFormRepresentation.h>
#endif