/**
	Based on Uefi/UefiSpec.h, original notice:

	Include file that supports UEFI.
	
	This include file must contain things defined in the UEFI 2.5 specification.
	If a code construct is defined in the UEFI 2.5 specification it must be included
	by this include file.
	
	Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.
	This program and the accompanying materials are licensed and made available under
	the terms and conditions of the BSD License 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.
	
**/
module uefi.spec;
import uefi.base;
import uefi.base_type;
import uefi.protocols.devicepath;
import uefi.protocols.simpletextin;
import uefi.protocols.simpletextinex;
import uefi.protocols.simpletextout;

public:
extern (C):
/// Enumeration of EFI memory allocation types.
alias EFI_ALLOCATE_TYPE = UINT32;
enum : EFI_ALLOCATE_TYPE
{
    ///
    /// 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
}
enum EFI_TIME_ADJUST_DAYLIGHT = 0x01;
enum EFI_TIME_IN_DAYLIGHT = 0x02;
/// Value definition for EFI_TIME.TimeZone.
enum EFI_UNSPECIFIED_TIMEZONE = 0x07FF;
enum EFI_MEMORY_UC = 0x0000000000000001UL;
enum EFI_MEMORY_WC = 0x0000000000000002UL;
enum EFI_MEMORY_WT = 0x0000000000000004UL;
enum EFI_MEMORY_WB = 0x0000000000000008UL;
enum EFI_MEMORY_UCE = 0x0000000000000010UL;
enum EFI_MEMORY_WP = 0x0000000000001000UL;
enum EFI_MEMORY_RP = 0x0000000000002000UL;
enum EFI_MEMORY_XP = 0x0000000000004000UL;
enum EFI_MEMORY_RO = 0x0000000000020000UL;
enum EFI_MEMORY_NV = 0x0000000000008000UL;
enum EFI_MEMORY_MORE_RELIABLE = 0x0000000000010000UL;
enum EFI_MEMORY_RUNTIME = 0x8000000000000000UL;
/// Memory descriptor version number.
enum EFI_MEMORY_DESCRIPTOR_VERSION = 1;
/// Definition of an EFI memory descriptor.
struct EFI_MEMORY_DESCRIPTOR
{
    ///
    /// Type of the memory region.  See EFI_MEMORY_TYPE.
    ///
    UINT32 Type;
    ///
    /// Physical address of the first byte of the memory region.  Must aligned
    /// on a 4 KB boundary.
    ///
    EFI_PHYSICAL_ADDRESS PhysicalStart;
    ///
    /// Virtual address of the first byte of the memory region.  Must aligned
    /// on a 4 KB boundary.
    ///
    EFI_VIRTUAL_ADDRESS VirtualStart;
    ///
    /// Number of 4KB pages in the memory region.
    ///
    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;
}
/**
	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. The only illegal
	memory type values are those in the range EfiMaxMemoryType..0x6FFFFFFF.
	@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 was EfiPersistentMemory.
	@retval EFI_OUT_OF_RESOURCES  The pages could not be allocated.
	@retval EFI_NOT_FOUND         The requested pages could not be found.
	
**/
alias EFI_ALLOCATE_PAGES = EFI_STATUS function(EFI_ALLOCATE_TYPE Type,
    EFI_MEMORY_TYPE MemoryType, UINTN Pages, EFI_PHYSICAL_ADDRESS* Memory) @nogc nothrow;
/**
	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().
	
**/
alias EFI_FREE_PAGES = EFI_STATUS function(EFI_PHYSICAL_ADDRESS Memory, UINTN Pages) @nogc nothrow;
/**
	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.
	
**/
alias EFI_GET_MEMORY_MAP = EFI_STATUS function(UINTN* MemoryMapSize,
    EFI_MEMORY_DESCRIPTOR* MemoryMap, UINTN* MapKey, UINTN* DescriptorSize,
    UINT32* DescriptorVersion) @nogc nothrow;
/**
	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. The only illegal
	memory type values are those in the range EfiMaxMemoryType..0x6FFFFFFF.
	@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 PoolType was invalid or Buffer is NULL.
	PoolType was EfiPersistentMemory.
	
**/
alias EFI_ALLOCATE_POOL = EFI_STATUS function(EFI_MEMORY_TYPE PoolType, UINTN Size,
    void** Buffer) @nogc nothrow;
/**
	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.
	
**/
alias EFI_FREE_POOL = EFI_STATUS function(void* Buffer) @nogc nothrow;
/**
	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.
	
**/
alias EFI_SET_VIRTUAL_ADDRESS_MAP = EFI_STATUS function(UINTN MemoryMapSize,
    UINTN DescriptorSize, UINT32 DescriptorVersion, EFI_MEMORY_DESCRIPTOR* VirtualMap) @nogc nothrow;
/**
	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.
**/
alias EFI_CONNECT_CONTROLLER = EFI_STATUS function(EFI_HANDLE ControllerHandle,
    EFI_HANDLE* DriverImageHandle, EFI_DEVICE_PATH_PROTOCOL* RemainingDevicePath, BOOLEAN Recursive) @nogc nothrow;
/**
	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.
	
**/
alias EFI_DISCONNECT_CONTROLLER = EFI_STATUS function(EFI_HANDLE ControllerHandle,
    EFI_HANDLE DriverImageHandle, EFI_HANDLE ChildHandle) @nogc nothrow;
enum 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.
	
**/
alias EFI_CONVERT_POINTER = EFI_STATUS function(UINTN DebugDisposition, void** Address) @nogc nothrow;
enum EVT_TIMER = 0x80000000;
enum EVT_RUNTIME = 0x40000000;
enum EVT_NOTIFY_WAIT = 0x00000100;
enum EVT_NOTIFY_SIGNAL = 0x00000200;
enum EVT_SIGNAL_EXIT_BOOT_SERVICES = 0x00000201;
enum EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE = 0x60000202;
enum 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.
	
**/
alias EFI_EVENT_NOTIFY = VOID function(EFI_EVENT Event, void* Context) @nogc nothrow;
/**
	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.
	
**/
alias EFI_CREATE_EVENT = EFI_STATUS function(UINT32 Type, EFI_TPL NotifyTpl,
    EFI_EVENT_NOTIFY NotifyFunction, void* NotifyContext, EFI_EVENT* Event) @nogc nothrow;
/**
	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.
	
**/
alias EFI_CREATE_EVENT_EX = EFI_STATUS function(UINT32 Type, EFI_TPL NotifyTpl,
    EFI_EVENT_NOTIFY NotifyFunction, const void* NotifyContext,
    const EFI_GUID* EventGroup, EFI_EVENT* Event) @nogc nothrow;
/// Timer delay types
alias EFI_TIMER_DELAY = UINT32;
enum : EFI_TIMER_DELAY
{
    ///
    /// 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
}
/**
	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.
	
**/
alias EFI_SET_TIMER = EFI_STATUS function(EFI_EVENT Event, EFI_TIMER_DELAY Type, UINT64 TriggerTime) @nogc nothrow;
/**
	Signals an event.
	
	@param[in]  Event             The event to signal.
	
	@retval EFI_SUCCESS           The event has been signaled.
	
**/
alias EFI_SIGNAL_EVENT = EFI_STATUS function(EFI_EVENT Event) @nogc nothrow;
/**
	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.
	
**/
alias EFI_WAIT_FOR_EVENT = EFI_STATUS function(UINTN NumberOfEvents, EFI_EVENT* Event,
    UINTN* Index) @nogc nothrow;
/**
	Closes an event.
	
	@param[in]  Event             The event to close.
	
	@retval EFI_SUCCESS           The event has been closed.
	
**/
alias EFI_CLOSE_EVENT = EFI_STATUS function(EFI_EVENT Event) @nogc nothrow;
/**
	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.
	
**/
alias EFI_CHECK_EVENT = EFI_STATUS function(EFI_EVENT Event) @nogc nothrow;
enum TPL_APPLICATION = 4;
enum TPL_CALLBACK = 8;
enum TPL_NOTIFY = 16;
enum 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
	
**/
alias EFI_RAISE_TPL = EFI_TPL function(EFI_TPL NewTpl) @nogc nothrow;
/**
	Restores a task's priority level to its previous value.
	
	@param[in]  OldTpl          The previous task priority level to restore.
	
**/
alias EFI_RESTORE_TPL = VOID function(EFI_TPL OldTpl) @nogc nothrow;
/**
	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.
	
	@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.
	
**/
alias EFI_GET_VARIABLE = EFI_STATUS function(CHAR16* VariableName,
    EFI_GUID* VendorGuid, UINT32* Attributes, UINTN* DataSize, void* Data) @nogc nothrow;
/**
	Enumerates the current variable names.
	
	@param[in, out]  VariableNameSize The size of the 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.
	@retval EFI_INVALID_PARAMETER VariableNameSize is NULL.
	@retval EFI_INVALID_PARAMETER VariableName is NULL.
	@retval EFI_INVALID_PARAMETER VendorGuid is NULL.
	@retval EFI_DEVICE_ERROR      The variable could not be retrieved due to a hardware error.
	
**/
alias EFI_GET_NEXT_VARIABLE_NAME = EFI_STATUS function(UINTN* VariableNameSize,
    CHAR16* VariableName, EFI_GUID* VendorGuid) @nogc nothrow;
/**
	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,
	EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS, 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_AUTHENTICATED_WRITE_ACCESS
	or 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.
	
**/
alias EFI_SET_VARIABLE = EFI_STATUS function(CHAR16* VariableName,
    EFI_GUID* VendorGuid, UINT32 Attributes, UINTN DataSize, void* Data) @nogc nothrow;
/// This provides the capabilities of the
/// real time clock device as exposed through the EFI interfaces.
struct EFI_TIME_CAPABILITIES
{
    ///
    /// 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;
}
/**
	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.
	
**/
alias EFI_GET_TIME = EFI_STATUS function(EFI_TIME* Time, EFI_TIME_CAPABILITIES* Capabilities) @nogc nothrow;
/**
	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.
	
**/
alias EFI_SET_TIME = EFI_STATUS function(EFI_TIME* Time) @nogc nothrow;
/**
	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.
	
**/
alias EFI_GET_WAKEUP_TIME = EFI_STATUS function(BOOLEAN* Enabled, BOOLEAN* Pending,
    EFI_TIME* Time) @nogc nothrow;
/**
	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.
	
**/
alias EFI_SET_WAKEUP_TIME = EFI_STATUS function(BOOLEAN Enable, EFI_TIME* Time) @nogc nothrow;
/**
	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.
**/
alias EFI_IMAGE_LOAD = EFI_STATUS function(BOOLEAN BootPolicy,
    EFI_HANDLE ParentImageHandle, EFI_DEVICE_PATH_PROTOCOL* DevicePath,
    void* SourceBuffer, UINTN SourceSize, EFI_HANDLE* ImageHandle) @nogc nothrow;
/**
	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
	
**/
alias EFI_IMAGE_START = EFI_STATUS function(EFI_HANDLE ImageHandle,
    UINTN* ExitDataSize, CHAR16** ExitData) @nogc nothrow;
/**
	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.
	
**/
alias EFI_EXIT = EFI_STATUS function(EFI_HANDLE ImageHandle,
    EFI_STATUS ExitStatus, UINTN ExitDataSize, CHAR16* ExitData) @nogc nothrow;
/**
	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.
	
**/
alias EFI_IMAGE_UNLOAD = EFI_STATUS function(EFI_HANDLE ImageHandle) @nogc nothrow;
/**
	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.
	
**/
alias EFI_EXIT_BOOT_SERVICES = EFI_STATUS function(EFI_HANDLE ImageHandle, UINTN MapKey) @nogc nothrow;
/**
	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.
	
**/
alias EFI_STALL = EFI_STATUS function(UINTN Microseconds) @nogc nothrow;
/**
	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.
	
**/
alias EFI_SET_WATCHDOG_TIMER = EFI_STATUS function(UINTN Timeout,
    UINT64 WatchdogCode, UINTN DataSize, CHAR16* WatchdogData) @nogc nothrow;
/**
	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 WatchdogData.
	@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.
	
**/
alias EFI_RESET_SYSTEM = VOID function(EFI_RESET_TYPE ResetType,
    EFI_STATUS ResetStatus, UINTN DataSize, void* ResetData) @nogc nothrow;
/**
	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.
	
**/
alias EFI_GET_NEXT_MONOTONIC_COUNT = EFI_STATUS function(UINT64* Count) @nogc nothrow;
/**
	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.
	
**/
alias EFI_GET_NEXT_HIGH_MONO_COUNT = EFI_STATUS function(UINT32* HighCount) @nogc nothrow;
/**
	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.
	
**/
alias EFI_CALCULATE_CRC32 = EFI_STATUS function(void* Data, UINTN DataSize, UINT32* Crc32) @nogc nothrow;
/**
	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.
	
**/
alias EFI_COPY_MEM = VOID function(void* Destination, void* Source, UINTN Length) @nogc nothrow;
/**
	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.
	
**/
alias EFI_SET_MEM = VOID function(void* Buffer, UINTN Size, UINT8 Value) @nogc nothrow;
/// Enumeration of EFI Interface Types
alias EFI_INTERFACE_TYPE = UINT32;
enum : EFI_INTERFACE_TYPE
{
    ///
    /// Indicates that the supplied protocol interface is supplied in native form.
    ///
    EFI_NATIVE_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()
	
	@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.
	
**/
alias EFI_INSTALL_PROTOCOL_INTERFACE = EFI_STATUS function(EFI_HANDLE* Handle,
    EFI_GUID* Protocol, EFI_INTERFACE_TYPE InterfaceType, void* Interface) @nogc nothrow;
/**
	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.
	
**/
alias EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES = EFI_STATUS function(EFI_HANDLE* Handle,
    ...) @nogc nothrow;
/**
	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.
	
**/
alias EFI_REINSTALL_PROTOCOL_INTERFACE = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, void* OldInterface, void* NewInterface) @nogc nothrow;
/**
	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.
	
**/
alias EFI_UNINSTALL_PROTOCOL_INTERFACE = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, void* Interface) @nogc nothrow;
/**
	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.
	
**/
alias EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES = EFI_STATUS function(EFI_HANDLE Handle,
    ...) @nogc nothrow;
/**
	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.
	
**/
alias EFI_HANDLE_PROTOCOL = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, void** Interface) @nogc nothrow;
enum EFI_OPEN_PROTOCOL_BY_HANDLE_PROTOCOL = 0x00000001;
enum EFI_OPEN_PROTOCOL_GET_PROTOCOL = 0x00000002;
enum EFI_OPEN_PROTOCOL_TEST_PROTOCOL = 0x00000004;
enum EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER = 0x00000008;
enum EFI_OPEN_PROTOCOL_BY_DRIVER = 0x00000010;
enum 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.
	
**/
alias EFI_OPEN_PROTOCOL = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, void** Interface, EFI_HANDLE AgentHandle,
    EFI_HANDLE ControllerHandle, UINT32 Attributes) @nogc nothrow;
/**
	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.
	
**/
alias EFI_CLOSE_PROTOCOL = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, EFI_HANDLE AgentHandle, EFI_HANDLE ControllerHandle) @nogc nothrow;
/// EFI Oprn Protocol Information Entry
struct EFI_OPEN_PROTOCOL_INFORMATION_ENTRY
{
    EFI_HANDLE AgentHandle;
    EFI_HANDLE ControllerHandle;
    UINT32 Attributes;
    UINT32 OpenCount;
}
/**
	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.
	
**/
alias EFI_OPEN_PROTOCOL_INFORMATION = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID* Protocol, EFI_OPEN_PROTOCOL_INFORMATION_ENTRY** EntryBuffer, UINTN* EntryCount) @nogc nothrow;
/**
	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.
	
**/
alias EFI_PROTOCOLS_PER_HANDLE = EFI_STATUS function(EFI_HANDLE Handle,
    EFI_GUID*** ProtocolBuffer, UINTN* ProtocolBufferCount) @nogc nothrow;
/**
	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.
	
**/
alias EFI_REGISTER_PROTOCOL_NOTIFY = EFI_STATUS function(EFI_GUID* Protocol,
    EFI_EVENT Event, void** Registration) @nogc nothrow;
/// Enumeration of EFI Locate Search Types
alias EFI_LOCATE_SEARCH_TYPE = UINT32;
enum : EFI_LOCATE_SEARCH_TYPE
{
    ///
    /// 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
}
/**
	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.
	
**/
alias EFI_LOCATE_HANDLE = EFI_STATUS function(EFI_LOCATE_SEARCH_TYPE SearchType,
    EFI_GUID* Protocol, void* SearchKey, UINTN* BufferSize, EFI_HANDLE* Buffer) @nogc nothrow;
/**
	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.
	
**/
alias EFI_LOCATE_DEVICE_PATH = EFI_STATUS function(EFI_GUID* Protocol,
    EFI_DEVICE_PATH_PROTOCOL** DevicePath, EFI_HANDLE* Device) @nogc nothrow;
/**
	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.
	
**/
alias EFI_INSTALL_CONFIGURATION_TABLE = EFI_STATUS function(EFI_GUID* Guid, void* Table) @nogc nothrow;
/**
	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.
	
**/
alias EFI_LOCATE_HANDLE_BUFFER = EFI_STATUS function(
    EFI_LOCATE_SEARCH_TYPE SearchType, EFI_GUID* Protocol, void* SearchKey,
    UINTN* NoHandles, EFI_HANDLE** Buffer) @nogc nothrow;
/**
	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.
	
**/
alias EFI_LOCATE_PROTOCOL = EFI_STATUS function(EFI_GUID* Protocol,
    void* Registration, void** Interface) @nogc nothrow;
/// EFI Capsule Block Descriptor
struct EFI_CAPSULE_BLOCK_DESCRIPTOR
{
    ///
    /// Length in bytes of the data pointed to by DataBlock/ContinuationPointer.
    ///
    UINT64 Length;
    union 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;
    }
}
/// EFI Capsule Header.
struct EFI_CAPSULE_HEADER
{
    ///
    /// 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;
}
/// 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.
struct EFI_CAPSULE_TABLE
{
    ///
    /// the size of the array of capsules.
    ///
    UINT32 CapsuleArrayNumber;
    ///
    /// Point to an array of capsules that contain the same CapsuleGuid value.
    ///
    VOID*[1] CapsulePtr;
}

enum CAPSULE_FLAGS_PERSIST_ACROSS_RESET = 0x00010000;
enum CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE = 0x00020000;
enum 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.
	
**/
alias EFI_UPDATE_CAPSULE = EFI_STATUS function(
    EFI_CAPSULE_HEADER** CapsuleHeaderArray, UINTN CapsuleCount,
    EFI_PHYSICAL_ADDRESS ScatterGatherList) @nogc nothrow;
/**
	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.
	
**/
alias EFI_QUERY_CAPSULE_CAPABILITIES = EFI_STATUS function(
    EFI_CAPSULE_HEADER** CapsuleHeaderArray, UINTN CapsuleCount,
    UINT64* MaximumCapsuleSize, EFI_RESET_TYPE* ResetType) @nogc nothrow;
/**
	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.
	
**/
alias EFI_QUERY_VARIABLE_INFO = EFI_STATUS function(UINT32 Attributes,
    UINT64* MaximumVariableStorageSize, UINT64* RemainingVariableStorageSize,
    UINT64* MaximumVariableSize) @nogc nothrow;
enum EFI_OS_INDICATIONS_BOOT_TO_FW_UI = 0x0000000000000001;
enum EFI_OS_INDICATIONS_TIMESTAMP_REVOCATION = 0x0000000000000002;
enum EFI_OS_INDICATIONS_FILE_CAPSULE_DELIVERY_SUPPORTED = 0x0000000000000004;
enum EFI_OS_INDICATIONS_FMP_CAPSULE_SUPPORTED = 0x0000000000000008;
enum EFI_OS_INDICATIONS_CAPSULE_RESULT_VAR_SUPPORTED = 0x0000000000000010;
enum EFI_SYSTEM_TABLE_SIGNATURE = SIGNATURE_64('I', 'B', 'I', ' ', 'S', 'Y', 'S', 'T');
enum EFI_2_50_SYSTEM_TABLE_REVISION = ((2 << 16) | (50));
enum EFI_2_40_SYSTEM_TABLE_REVISION = ((2 << 16) | (40));
enum EFI_2_31_SYSTEM_TABLE_REVISION = ((2 << 16) | (31));
enum EFI_2_30_SYSTEM_TABLE_REVISION = ((2 << 16) | (30));
enum EFI_2_20_SYSTEM_TABLE_REVISION = ((2 << 16) | (20));
enum EFI_2_10_SYSTEM_TABLE_REVISION = ((2 << 16) | (10));
enum EFI_2_00_SYSTEM_TABLE_REVISION = ((2 << 16) | (00));
enum EFI_1_10_SYSTEM_TABLE_REVISION = ((1 << 16) | (10));
enum EFI_1_02_SYSTEM_TABLE_REVISION = ((1 << 16) | (02));
enum EFI_SYSTEM_TABLE_REVISION = EFI_2_50_SYSTEM_TABLE_REVISION;
enum EFI_SPECIFICATION_VERSION = EFI_SYSTEM_TABLE_REVISION;
enum EFI_RUNTIME_SERVICES_SIGNATURE = SIGNATURE_64('R', 'U', 'N', 'T', 'S', 'E', 'R',
        'V');
enum EFI_RUNTIME_SERVICES_REVISION = EFI_SPECIFICATION_VERSION;
/// EFI Runtime Services Table.
struct EFI_RUNTIME_SERVICES
{
    ///
    /// 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;
}

enum EFI_BOOT_SERVICES_SIGNATURE = SIGNATURE_64('B', 'O', 'O', 'T', 'S', 'E', 'R',
        'V');
enum EFI_BOOT_SERVICES_REVISION = EFI_SPECIFICATION_VERSION;
/// EFI Boot Services Table.
struct EFI_BOOT_SERVICES
{
    ///
    /// 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;
}
/// Contains a set of GUID/pointer pairs comprised of the ConfigurationTable field in the
/// EFI System Table.
struct EFI_CONFIGURATION_TABLE
{
    ///
    /// 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 System Table
struct EFI_SYSTEM_TABLE
{
    ///
    /// 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;
}
/**
	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.
**/
alias EFI_IMAGE_ENTRY_POINT = EFI_STATUS function(EFI_HANDLE ImageHandle,
    EFI_SYSTEM_TABLE* SystemTable) @nogc nothrow;
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[];
}

enum LOAD_OPTION_ACTIVE = 0x00000001;
enum LOAD_OPTION_FORCE_RECONNECT = 0x00000002;
enum LOAD_OPTION_HIDDEN = 0x00000008;
enum LOAD_OPTION_CATEGORY = 0x00001F00;
enum LOAD_OPTION_CATEGORY_BOOT = 0x00000000;
enum LOAD_OPTION_CATEGORY_APP = 0x00000100;
enum EFI_BOOT_OPTION_SUPPORT_KEY = 0x00000001;
enum EFI_BOOT_OPTION_SUPPORT_APP = 0x00000002;
enum EFI_BOOT_OPTION_SUPPORT_SYSPREP = 0x00000010;
enum EFI_BOOT_OPTION_SUPPORT_COUNT = 0x00000300;
/// EFI Boot Key Data
union EFI_BOOT_KEY_DATA
{
    struct Options
    {
        /*///
            /// 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;*/
        UINT32 Flags;
    }

    UINT32 PackedValue;
}
/// EFI Key Option.
struct EFI_KEY_OPTION
{
    ///
    /// 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[];
}

enum EFI_REMOVABLE_MEDIA_FILE_NAME_IA32 = "\\EFI\\BOOT\\BOOTIA32.EFI"w;
enum EFI_REMOVABLE_MEDIA_FILE_NAME_IA64 = "\\EFI\\BOOT\\BOOTIA64.EFI"w;
enum EFI_REMOVABLE_MEDIA_FILE_NAME_X64 = "\\EFI\\BOOT\\BOOTX64.EFI"w;
enum EFI_REMOVABLE_MEDIA_FILE_NAME_ARM = "\\EFI\\BOOT\\BOOTARM.EFI"w;
enum EFI_REMOVABLE_MEDIA_FILE_NAME_AARCH64 = "\\EFI\\BOOT\\BOOTAA64.EFI"w;
// FIXME: INCLUDE <Uefi/UefiPxe.h>
// FIXME: INCLUDE <Uefi/UefiGpt.h>
// FIXME: INCLUDE <Uefi/UefiInternalFormRepresentation.h>