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audk/EdkCompatibilityPkg/Foundation/Library/Dxe/Include/EfiRuntimeLib.h

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/*++
Copyright (c) 2004 - 2007, 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
which 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 Name:
EfiRuntimeLib.h
Abstract:
Light weight lib to support EFI drivers.
--*/
#ifndef _EFI_RUNTIME_LIB_H_
#define _EFI_RUNTIME_LIB_H_
#define MAX_FVB_COUNT 16
#include "EfiStatusCode.h"
#include "EfiCommonLib.h"
#include "LinkedList.h"
#include "GetImage.h"
#include "RtDevicePath.h"
#include EFI_GUID_DEFINITION (DxeServices)
#include EFI_GUID_DEFINITION (EventGroup)
#include EFI_GUID_DEFINITION (EventLegacyBios)
#include EFI_PROTOCOL_DEFINITION (CpuIo)
#include EFI_PROTOCOL_DEFINITION (FirmwareVolume)
#include EFI_PROTOCOL_DEFINITION (FirmwareVolume2)
#include EFI_PROTOCOL_DEFINITION (FirmwareVolumeBlock)
#include EFI_PROTOCOL_DEFINITION (FvbExtension)
#include "ProcDep.h"
typedef struct {
EFI_HANDLE Handle;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb;
EFI_FVB_EXTENSION_PROTOCOL *FvbExtension;
} FVB_ENTRY;
//
// Driver Lib Globals.
//
extern EFI_BOOT_SERVICES *gBS;
extern EFI_SYSTEM_TABLE *gST;
extern EFI_DXE_SERVICES *gDS;
extern UINTN gRtErrorLevel;
extern FVB_ENTRY *mFvbEntry;
VOID
EFIAPI
EfiRuntimeLibFvbVirtualNotifyEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
/*++
Routine Description:
Notify function to convert pointers to Fvb functions after ExitBootServices
Arguments:
Event - Event whose notification function is being invoked.
Context - Pointer to the notification function<6F><6E>s context, which is
implementation-dependent.
Returns:
None
--*/
;
EFI_STATUS
EfiInitializeRuntimeDriverLib (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable,
IN EFI_EVENT_NOTIFY RuntimeNotifyEventHandler
)
/*++
Routine Description:
Intialize Runtime Driver Lib if it has not yet been initialized.
Arguments:
ImageHandle - The firmware allocated handle for the EFI image.
SystemTable - A pointer to the EFI System Table.
RuntimeNotifyEventHandler - Virtual address change notification event
Returns:
EFI_STATUS always returns EFI_SUCCESS
--*/
;
EFI_STATUS
EfiShutdownRuntimeDriverLib (
VOID
)
/*++
Routine Description:
This routine will free some resources which have been allocated in
EfiInitializeRuntimeDriverLib(). If a runtime driver exits with an error,
it must call this routine to free the allocated resource before the exiting.
Arguments:
None
Returns:
EFI_SUCCESS - Shotdown the Runtime Driver Lib successfully
EFI_UNSUPPORTED - Runtime Driver lib was not initialized at all
--*/
;
EFI_STATUS
EfiInitializeSmmDriverLib (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Intialize Smm Driver Lib if it has not yet been initialized.
Arguments:
ImageHandle - The firmware allocated handle for the EFI image.
SystemTable - A pointer to the EFI System Table.
Returns:
EFI_STATUS always returns EFI_SUCCESS
--*/
;
EFI_STATUS
EfiLibGetSystemConfigurationTable (
IN EFI_GUID *TableGuid,
IN OUT VOID **Table
)
/*++
Routine Description:
Return the EFI 1.0 System Tabl entry with TableGuid
Arguments:
TableGuid - Name of entry to return in the system table
Table - Pointer in EFI system table associated with TableGuid
Returns:
EFI_SUCCESS - Table returned;
EFI_NOT_FOUND - TableGuid not in EFI system table
--*/
;
BOOLEAN
EfiAtRuntime (
VOID
)
/*++
Routine Description:
Am I at runtime?
Arguments:
None
Returns:
TRUE - At runtime
FALSE - Not at runtime
--*/
;
BOOLEAN
EfiGoneVirtual (
VOID
)
/*++
Routine Description:
Return TRUE if SetVirtualAddressMap () has been called
Arguments:
NONE
Returns:
TRUE - If SetVirtualAddressMap () has been called
FALSE - If SetVirtualAddressMap () has not been called
--*/
;
EFI_STATUS
EfiLibGetSystemConfigurationTable (
IN EFI_GUID *TableGuid,
IN OUT VOID **Table
)
/*++
Routine Description:
Get table from configuration table by name
Arguments:
TableGuid - Table name to search
Table - Pointer to the table caller wants
Returns:
EFI_NOT_FOUND - Not found the table
EFI_SUCCESS - Found the table
--*/
;
EFI_EVENT
RtEfiLibCreateProtocolNotifyEvent (
IN EFI_GUID *ProtocolGuid,
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
OUT VOID **Registration
)
/*++
Routine Description:
Create a protocol notification event and return it.
Arguments:
ProtocolGuid - Protocol to register notification event on.
NotifyTpl - Maximum TPL to single the NotifyFunction.
NotifyFunction - EFI notification routine.
NotifyContext - Context passed into Event when it is created.
Registration - Registration key returned from RegisterProtocolNotify().
Returns:
The EFI_EVENT that has been registered to be signaled when a ProtocolGuid
is added to the system.
--*/
;
//
// Lock.c
//
typedef struct {
EFI_TPL Tpl;
EFI_TPL OwnerTpl;
UINTN Lock;
} EFI_LOCK;
VOID
EfiInitializeLock (
IN OUT EFI_LOCK *Lock,
IN EFI_TPL Priority
)
/*++
Routine Description:
Initialize a basic mutual exclusion lock. Each lock
provides mutual exclusion access at it's task priority
level. Since there is no-premption (at any TPL) or
multiprocessor support, acquiring the lock only consists
of raising to the locks TPL.
Note on a check build ASSERT()s are used to ensure proper
lock usage.
Arguments:
Lock - The EFI_LOCK structure to initialize
Priority - The task priority level of the lock
Returns:
An initialized Efi Lock structure.
--*/
;
//
// Macro to initialize the state of a lock when a lock variable is declared
//
#define EFI_INITIALIZE_LOCK_VARIABLE(Tpl) {Tpl,0,0}
VOID
EfiAcquireLock (
IN EFI_LOCK *Lock
)
/*++
Routine Description:
Raising to the task priority level of the mutual exclusion
lock, and then acquires ownership of the lock.
Arguments:
Lock - The lock to acquire
Returns:
Lock owned
--*/
;
EFI_STATUS
EfiAcquireLockOrFail (
IN EFI_LOCK *Lock
)
/*++
Routine Description:
Initialize a basic mutual exclusion lock. Each lock
provides mutual exclusion access at it's task priority
level. Since there is no-premption (at any TPL) or
multiprocessor support, acquiring the lock only consists
of raising to the locks TPL.
Arguments:
Lock - The EFI_LOCK structure to initialize
Returns:
EFI_SUCCESS - Lock Owned.
EFI_ACCESS_DENIED - Reentrant Lock Acquisition, Lock not Owned.
--*/
;
VOID
EfiReleaseLock (
IN EFI_LOCK *Lock
)
/*++
Routine Description:
Releases ownership of the mutual exclusion lock, and
restores the previous task priority level.
Arguments:
Lock - The lock to release
Returns:
None
--*/
;
#define EfiCopyMem EfiCommonLibCopyMem
#define EfiSetMem EfiCommonLibSetMem
#define EfiZeroMem EfiCommonLibZeroMem
INTN
EfiCompareMem (
IN VOID *MemOne,
IN VOID *MemTwo,
IN UINTN Len
)
/*++
Routine Description:
Compares two memory buffers of a given length.
Arguments:
MemOne - First memory buffer
MemTwo - Second memory buffer
Len - Length of Mem1 and Mem2 memory regions to compare
Returns:
= 0 if MemOne == MemTwo
> 0 if MemOne > MemTwo
< 0 if MemOne < MemTwo
--*/
;
//
// Debug.c init
//
EFI_STATUS
EfiDebugAssertInit (
VOID
)
/*++
Routine Description:
Locate Debug Assert Protocol and set as mDebugAssert
Arguments:
None
Returns:
Status code
--*/
;
//
// Wrapper for EFI runtime functions
//
VOID
EfiResetSystem (
IN EFI_RESET_TYPE ResetType,
IN EFI_STATUS ResetStatus,
IN UINTN DataSize,
IN CHAR16 *ResetData
)
/*++
Routine Description:
Resets the entire platform.
Arguments:
ResetType - The type of reset to perform.
ResetStatus - The status code for the reset.
DataSize - The size, in bytes, of ResetData.
ResetData - A data buffer that includes a Null-terminated Unicode string, optionally
followed by additional binary data.
Returns:
None
--*/
;
EFI_STATUS
EfiGetNextHighMonotonicCount (
OUT UINT32 *HighCount
)
/*++
Routine Description:
Returns the next high 32 bits of the platform<72><6D>s monotonic counter.
Arguments:
HighCount - Pointer to returned value.
Returns:
Status code
--*/
;
EFI_STATUS
EfiGetTime (
OUT EFI_TIME *Time,
OUT EFI_TIME_CAPABILITIES *Capabilities
)
/*++
Routine Description:
Returns the current time and date information, and the time-keeping
capabilities of the hardware platform.
Arguments:
Time - A pointer to storage to receive a snapshot of the current time.
Capabilities - An optional pointer to a buffer to receive the real time clock device<63><65>s
capabilities.
Returns:
Status code
--*/
;
EFI_STATUS
EfiSetTime (
OUT EFI_TIME *Time
)
/*++
Routine Description:
Sets the current local time and date information.
Arguments:
Time - A pointer to the current time.
Returns:
Status code
--*/
;
EFI_STATUS
EfiGetWakeupTime (
OUT BOOLEAN *Enabled,
OUT BOOLEAN *Pending,
OUT EFI_TIME *Time
)
/*++
Routine Description:
Returns the current wakeup alarm clock setting.
Arguments:
Enabled - Indicates if the alarm is currently enabled or disabled.
Pending - Indicates if the alarm signal is pending and requires acknowledgement.
Time - The current alarm setting.
Returns:
Status code
--*/
;
EFI_STATUS
EfiSetWakeupTime (
IN BOOLEAN Enable,
IN EFI_TIME *Time
)
/*++
Routine Description:
Sets the system wakeup alarm clock time.
Arguments:
Enable - Enable or disable the wakeup alarm.
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.
Returns:
Status code
--*/
;
EFI_STATUS
EfiGetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID * VendorGuid,
OUT UINT32 *Attributes OPTIONAL,
IN OUT UINTN *DataSize,
OUT VOID *Data
)
/*++
Routine Description:
Returns the value of a variable.
Arguments:
VariableName - A Null-terminated Unicode string that is the name of the
vendor<6F><72>s variable.
VendorGuid - A unique identifier for the vendor.
Attributes - If not NULL, a pointer to the memory location to return the
attributes bitmask for the variable.
DataSize - On input, the size in bytes of the return Data buffer.
On output the size of data returned in Data.
Data - The buffer to return the contents of the variable.
Returns:
Status code
--*/
;
EFI_STATUS
EfiGetNextVariableName (
IN OUT UINTN *VariableNameSize,
IN OUT CHAR16 *VariableName,
IN OUT EFI_GUID *VendorGuid
)
/*++
Routine Description:
Enumerates the current variable names.
Arguments:
VariableNameSize - The size of the VariableName buffer.
VariableName - On input, supplies the last VariableName that was returned
by GetNextVariableName().
On output, returns the Nullterminated Unicode string of the
current variable.
VendorGuid - On input, supplies the last VendorGuid that was returned by
GetNextVariableName().
On output, returns the VendorGuid of the current variable.
Returns:
Status code
--*/
;
EFI_STATUS
EfiSetVariable (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN UINT32 Attributes,
IN UINTN DataSize,
IN VOID *Data
)
/*++
Routine Description:
Sets the value of a variable.
Arguments:
VariableName - A Null-terminated Unicode string that is the name of the
vendor<6F><72>s variable.
VendorGuid - A unique identifier for the vendor.
Attributes - Attributes bitmask to set for the variable.
DataSize - The size in bytes of the Data buffer.
Data - The contents for the variable.
Returns:
Status code
--*/
;
#if (EFI_SPECIFICATION_VERSION >= 0x00020000)
EFI_STATUS
EfiQueryVariableInfo (
IN UINT32 Attributes,
OUT UINT64 *MaximumVariableStorageSize,
OUT UINT64 *RemainingVariableStorageSize,
OUT UINT64 *MaximumVariableSize
)
/*++
Routine Description:
This code returns information about the EFI variables.
Arguments:
Attributes Attributes bitmask to specify the type of variables
on which to return information.
MaximumVariableStorageSize Pointer to the maximum size of the storage space available
for the EFI variables associated with the attributes specified.
RemainingVariableStorageSize Pointer to the remaining size of the storage space available
for the EFI variables associated with the attributes specified.
MaximumVariableSize Pointer to the maximum size of the individual EFI variables
associated with the attributes specified.
Returns:
Status code
--*/
;
#endif
EFI_STATUS
EfiReportStatusCode (
IN EFI_STATUS_CODE_TYPE CodeType,
IN EFI_STATUS_CODE_VALUE Value,
IN UINT32 Instance,
IN EFI_GUID * CallerId,
IN EFI_STATUS_CODE_DATA * Data OPTIONAL
)
/*++
Routine Description:
Status Code reporter
Arguments:
CodeType - Type of Status Code.
Value - Value to output for Status Code.
Instance - Instance Number of this status code.
CallerId - ID of the caller of this status code.
Data - Optional data associated with this status code.
Returns:
Status code
--*/
;
EFI_STATUS
EfiConvertPointer (
IN UINTN DebugDisposition,
IN OUT VOID *Address
)
/*++
Routine Description:
Determines the new virtual address that is to be used on subsequent memory accesses.
Arguments:
DebugDisposition - Supplies type information for the pointer being converted.
Address - A pointer to a pointer that is to be fixed to be the value needed
for the new virtual address mappings being applied.
Returns:
Status code
--*/
;
EFI_STATUS
EfiConvertList (
IN UINTN DebugDisposition,
IN OUT EFI_LIST_ENTRY *ListHead
)
/*++
Routine Description:
Conver the standard Lib double linked list to a virtual mapping.
Arguments:
DebugDisposition - Argument to EfiConvertPointer (EFI 1.0 API)
ListHead - Head of linked list to convert
Returns:
EFI_SUCCESS
--*/
;
//
// Base IO Class Functions
//
EFI_STATUS
EfiIoRead (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN OUT VOID *Buffer
)
/*++
Routine Description:
Perform an IO read into Buffer.
Arguments:
Width - Width of read transaction, and repeat operation to use
Address - IO address to read
Count - Number of times to read the IO address.
Buffer - Buffer to read data into. size is Width * Count
Returns:
Status code
--*/
;
UINT8
IoRead8 (
IN UINT64 Address
)
/*++
Routine Description:
Do a one byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
;
UINT16
IoRead16 (
IN UINT64 Address
)
/*++
Routine Description:
Do a two byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
;
UINT32
IoRead32 (
IN UINT64 Address
)
/*++
Routine Description:
Do a four byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
;
EFI_STATUS
EfiIoWrite (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN OUT VOID *Buffer
)
/*++
Routine Description:
Perform an IO write into Buffer.
Arguments:
Width - Width of write transaction, and repeat operation to use
Address - IO address to write
Count - Number of times to write the IO address.
Buffer - Buffer to write data from. size is Width * Count
Returns:
Status code
--*/
;
VOID
IoWrite8 (
IN UINT64 Address,
IN UINT8 Data
)
/*++
Routine Description:
Do a one byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
VOID
IoWrite16 (
IN UINT64 Address,
IN UINT16 Data
)
/*++
Routine Description:
Do a two byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
VOID
IoWrite32 (
IN UINT64 Address,
IN UINT32 Data
)
/*++
Routine Description:
Do a four byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
EFI_STATUS
EfiMemRead (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN OUT VOID *Buffer
)
/*++
Routine Description:
Perform a Memory mapped IO read into Buffer.
Arguments:
Width - Width of each read transaction.
Address - Memory mapped IO address to read
Count - Number of Width quanta to read
Buffer - Buffer to read data into. size is Width * Count
Returns:
Status code
--*/
;
UINT8
MemRead8 (
IN UINT64 Address
)
/*++
Routine Description:
Do a one byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
;
UINT16
MemRead16 (
IN UINT64 Address
)
/*++
Routine Description:
Do a two byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
;
UINT32
MemRead32 (
IN UINT64 Address
)
/*++
Routine Description:
Do a four byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
;
UINT64
MemRead64 (
IN UINT64 Address
)
/*++
Routine Description:
Do a eight byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
;
EFI_STATUS
EfiMemWrite (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN OUT VOID *Buffer
)
/*++
Routine Description:
Perform a memory mapped IO write into Buffer.
Arguments:
Width - Width of write transaction, and repeat operation to use
Address - IO address to write
Count - Number of times to write the IO address.
Buffer - Buffer to write data from. size is Width * Count
Returns:
Status code
--*/
;
VOID
MemWrite8 (
IN UINT64 Address,
IN UINT8 Data
)
/*++
Routine Description:
Do a one byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
VOID
MemWrite16 (
IN UINT64 Address,
IN UINT16 Data
)
/*++
Routine Description:
Do a two byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
VOID
MemWrite32 (
IN UINT64 Address,
IN UINT32 Data
)
/*++
Routine Description:
Do a four byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
VOID
MemWrite64 (
IN UINT64 Address,
IN UINT64 Data
)
/*++
Routine Description:
Do a eight byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
;
//
// Platform specific functions
//
UINT8
PciRead8 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register
)
/*++
Routine Description:
Perform an one byte PCI config cycle read
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Returns:
Data read from PCI config space
--*/
;
UINT16
PciRead16 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register
)
/*++
Routine Description:
Perform an two byte PCI config cycle read
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Returns:
Data read from PCI config space
--*/
;
UINT32
PciRead32 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register
)
/*++
Routine Description:
Perform an four byte PCI config cycle read
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Returns:
Data read from PCI config space
--*/
;
VOID
PciWrite8 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register,
UINT8 Data
)
/*++
Routine Description:
Perform an one byte PCI config cycle write
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Data - Data to write
Returns:
NONE
--*/
;
VOID
PciWrite16 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register,
UINT16 Data
)
/*++
Routine Description:
Perform an two byte PCI config cycle write
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Data - Data to write
Returns:
NONE
--*/
;
VOID
PciWrite32 (
UINT8 Segment,
UINT8 Bus,
UINT8 DevFunc,
UINT8 Register,
UINT32 Data
)
/*++
Routine Description:
Perform an four byte PCI config cycle write
Arguments:
Segment - PCI Segment ACPI _SEG
Bus - PCI Bus
DevFunc - PCI Device(7:3) and Func(2:0)
Register - PCI config space register
Data - Data to write
Returns:
NONE
--*/
;
VOID
EfiStall (
IN UINTN Microseconds
)
/*++
Routine Description:
Delay for at least the request number of microseconds
Arguments:
Microseconds - Number of microseconds to delay.
Returns:
NONE
--*/
;
//
// FVB Services.
//
EFI_STATUS
EfiFvbInitialize (
VOID
)
/*++
Routine Description:
Initialize globals and register Fvb Protocol notification function.
Arguments:
None
Returns:
EFI_SUCCESS
--*/
;
EFI_STATUS
EfiFvbShutdown (
VOID
)
/*++
Routine Description:
Release resources allocated in EfiFvbInitialize.
Arguments:
None
Returns:
EFI_SUCCESS
--*/
;
EFI_STATUS
EfiFvbReadBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Reads specified number of bytes into a buffer from the specified block
Arguments:
Instance - The FV instance to be read from
Lba - The logical block address to be read from
Offset - Offset into the block at which to begin reading
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
Buffer - Pointer to a caller allocated buffer that will be
used to hold the data read
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbWriteBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Writes specified number of bytes from the input buffer to the block
Arguments:
Instance - The FV instance to be written to
Lba - The starting logical block index to write to
Offset - Offset into the block at which to begin writing
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
Buffer - Pointer to a caller allocated buffer that contains
the source for the write
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbEraseBlock (
IN UINTN Instance,
IN EFI_LBA Lba
)
/*++
Routine Description:
Erases and initializes a firmware volume block
Arguments:
Instance - The FV instance to be erased
Lba - The logical block index to be erased
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbGetVolumeAttributes (
IN UINTN Instance,
OUT EFI_FVB_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbSetVolumeAttributes (
IN UINTN Instance,
IN EFI_FVB_ATTRIBUTES Attributes
)
/*++
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter.
Arguments:
Instance - The FV instance whose attributes is going to be
modified
Attributes - It is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbGetPhysicalAddress (
IN UINTN Instance,
OUT EFI_PHYSICAL_ADDRESS *Address
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
Address - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
Returns:
Status code
--*/
;
EFI_STATUS
EfiFvbGetBlockSize (
IN UINTN Instance,
IN EFI_LBA Lba,
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
)
/*++
Routine Description:
Retrieve the size of a logical block
Arguments:
Instance - The FV instance whose block size is going to be
returned
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
NumOfBlocks - a pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
--*/
;
EFI_STATUS
EfiFvbEraseCustomBlockRange (
IN UINTN Instance,
IN EFI_LBA StartLba,
IN UINTN OffsetStartLba,
IN EFI_LBA LastLba,
IN UINTN OffsetLastLba
)
/*++
Routine Description:
Erases and initializes a specified range of a firmware volume
Arguments:
Instance - The FV instance to be erased
StartLba - The starting logical block index to be erased
OffsetStartLba - Offset into the starting block at which to
begin erasing
LastLba - The last logical block index to be erased
OffsetLastLba - Offset into the last block at which to end erasing
Returns:
Status code
--*/
;
EFI_STATUS
EfiCpuFlushCache (
IN EFI_PHYSICAL_ADDRESS Start,
IN UINT64 Length
)
/*++
Routine Description:
Flush cache with specified range.
Arguments:
Start - Start address
Length - Length in bytes
Returns:
Status code
--*/
;
EFI_STATUS
EFIAPI
RtEfiCreateEventLegacyBoot (
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
OUT EFI_EVENT *LegacyBootEvent
)
/*++
Routine Description:
Create a Legacy Boot Event.
Tiano extended the CreateEvent Type enum to add a legacy boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification by
declaring a GUID for the legacy boot event class. This library supports
the R8.5/EFI 1.10 form and R8.6/UEFI 2.0 form and allows common code to
work both ways.
Arguments:
LegacyBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex)
Returns:
EFI_SUCCESS Event was created.
Other Event was not created.
--*/
;
EFI_STATUS
EFIAPI
RtEfiCreateEventReadyToBoot (
IN EFI_TPL NotifyTpl,
IN EFI_EVENT_NOTIFY NotifyFunction,
IN VOID *NotifyContext,
OUT EFI_EVENT *ReadyToBootEvent
)
/*++
Routine Description:
Create a Read to Boot Event.
Tiano extended the CreateEvent Type enum to add a ready to boot event type.
This was bad as Tiano did not own the enum. In UEFI 2.0 CreateEventEx was
added and now it's possible to not voilate the UEFI specification and use
the ready to boot event class defined in UEFI 2.0. This library supports
the R8.5/EFI 1.10 form and R8.6/UEFI 2.0 form and allows common code to
work both ways.
Arguments:
ReadyToBootEvent Returns the EFI event returned from gBS->CreateEvent(Ex)
Return:
EFI_SUCCESS - Event was created.
Other - Event was not created.
--*/
;
#endif
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