3 Copyright (c) 2006 - 2007, Intel Corporation
4 All rights reserved. This program and the accompanying materials
5 are licensed and made available under the terms and conditions of the BSD License
6 which accompanies this distribution. The full text of the license may be found at
7 http://opensource.org/licenses/bsd-license.php
9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
21 #include <RuntimeLibInternal.h>
26 IN EFI_RESET_TYPE ResetType
,
27 IN EFI_STATUS ResetStatus
,
35 Resets the entire platform.
39 ResetType - The type of reset to perform.
40 ResetStatus - The status code for the reset.
41 DataSize - The size, in bytes, of ResetData.
42 ResetData - A data buffer that includes a Null-terminated Unicode string, optionally
43 followed by additional binary data.
51 mRT
->ResetSystem (ResetType
, ResetStatus
, DataSize
, ResetData
);
55 // The following functions hide the mRT local global from the call to
56 // runtime service in the EFI system table.
62 OUT EFI_TIME_CAPABILITIES
*Capabilities
68 Returns the current time and date information, and the time-keeping
69 capabilities of the hardware platform.
73 Time - A pointer to storage to receive a snapshot of the current time.
74 Capabilities - An optional pointer to a buffer to receive the real time clock device's
83 return mRT
->GetTime (Time
, Capabilities
);
95 Sets the current local time and date information.
99 Time - A pointer to the current time.
107 return mRT
->SetTime (Time
);
113 OUT BOOLEAN
*Enabled
,
114 OUT BOOLEAN
*Pending
,
121 Returns the current wakeup alarm clock setting.
125 Enabled - Indicates if the alarm is currently enabled or disabled.
126 Pending - Indicates if the alarm signal is pending and requires acknowledgement.
127 Time - The current alarm setting.
135 return mRT
->GetWakeupTime (Enabled
, Pending
, Time
);
148 Sets the system wakeup alarm clock time.
152 Enable - Enable or disable the wakeup alarm.
153 Time - If Enable is TRUE, the time to set the wakeup alarm for.
154 If Enable is FALSE, then this parameter is optional, and may be NULL.
162 return mRT
->SetWakeupTime (Enable
, Time
);
171 IN CHAR16
*VariableName
,
172 IN EFI_GUID
* VendorGuid
,
173 OUT UINT32
*Attributes OPTIONAL
,
174 IN OUT UINTN
*DataSize
,
181 Returns the value of a variable.
185 VariableName - A Null-terminated Unicode string that is the name of the
187 VendorGuid - A unique identifier for the vendor.
188 Attributes - If not NULL, a pointer to the memory location to return the
189 attributes bitmask for the variable.
190 DataSize - On input, the size in bytes of the return Data buffer.
191 On output the size of data returned in Data.
192 Data - The buffer to return the contents of the variable.
200 return mRT
->GetVariable (VariableName
, VendorGuid
, Attributes
, DataSize
, Data
);
205 EfiGetNextVariableName (
206 IN OUT UINTN
*VariableNameSize
,
207 IN OUT CHAR16
*VariableName
,
208 IN OUT EFI_GUID
*VendorGuid
214 Enumerates the current variable names.
218 VariableNameSize - The size of the VariableName buffer.
219 VariableName - On input, supplies the last VariableName that was returned
220 by GetNextVariableName().
221 On output, returns the Nullterminated Unicode string of the
223 VendorGuid - On input, supplies the last VendorGuid that was returned by
224 GetNextVariableName().
225 On output, returns the VendorGuid of the current variable.
233 return mRT
->GetNextVariableName (VariableNameSize
, VariableName
, VendorGuid
);
239 IN CHAR16
*VariableName
,
240 IN EFI_GUID
*VendorGuid
,
241 IN UINT32 Attributes
,
249 Sets the value of a variable.
253 VariableName - A Null-terminated Unicode string that is the name of the
255 VendorGuid - A unique identifier for the vendor.
256 Attributes - Attributes bitmask to set for the variable.
257 DataSize - The size in bytes of the Data buffer.
258 Data - The contents for the variable.
266 return mRT
->SetVariable (VariableName
, VendorGuid
, Attributes
, DataSize
, Data
);
271 EfiGetNextHighMonotonicCount (
272 OUT UINT32
*HighCount
278 Returns the next high 32 bits of the platform's monotonic counter.
282 HighCount - Pointer to returned value.
290 return mRT
->GetNextHighMonotonicCount (HighCount
);
296 IN UINTN DebugDisposition
,
297 IN OUT VOID
**Address
303 Determines the new virtual address that is to be used on subsequent memory accesses.
307 DebugDisposition - Supplies type information for the pointer being converted.
308 Address - A pointer to a pointer that is to be fixed to be the value needed
309 for the new virtual address mappings being applied.
317 return mRT
->ConvertPointer (DebugDisposition
, Address
);
323 IN UINTN DebugDisposition
,
324 IN OUT LIST_ENTRY
*ListHead
330 Conver the standard Lib double linked list to a virtual mapping.
334 DebugDisposition - Argument to EfiConvertPointer (EFI 1.0 API)
336 ListHead - Head of linked list to convert
345 LIST_ENTRY
*NextLink
;
348 // Convert all the ForwardLink & BackLink pointers in the list
352 NextLink
= Link
->ForwardLink
;
355 Link
->ForwardLink
== ListHead
? DebugDisposition
: 0,
356 (VOID
**) &Link
->ForwardLink
360 Link
->BackLink
== ListHead
? DebugDisposition
: 0,
361 (VOID
**) &Link
->BackLink
365 } while (Link
!= ListHead
);
371 Change the runtime addressing mode of EFI firmware from physical to virtual.
373 @param MemoryMapSize The size in bytes of VirtualMap.
374 @param DescriptorSize The size in bytes of an entry in the VirtualMap.
375 @param DescriptorVersion The version of the structure entries in VirtualMap.
376 @param VirtualMap An array of memory descriptors which contain new virtual
377 address mapping information for all runtime ranges. Type
378 EFI_MEMORY_DESCRIPTOR is defined in the
379 GetMemoryMap() function description.
381 @retval EFI_SUCCESS The virtual address map has been applied.
382 @retval EFI_UNSUPPORTED EFI firmware is not at runtime, or the EFI firmware is already in
383 virtual address mapped mode.
384 @retval EFI_INVALID_PARAMETER DescriptorSize or DescriptorVersion is
386 @retval EFI_NO_MAPPING A virtual address was not supplied for a range in the memory
387 map that requires a mapping.
388 @retval EFI_NOT_FOUND A virtual address was supplied for an address that is not found
393 EfiSetVirtualAddressMap (
394 IN UINTN MemoryMapSize
,
395 IN UINTN DescriptorSize
,
396 IN UINT32 DescriptorVersion
,
397 IN CONST EFI_MEMORY_DESCRIPTOR
*VirtualMap
400 return mRT
->SetVirtualAddressMap (
404 (EFI_MEMORY_DESCRIPTOR
*) VirtualMap
412 IN UEFI_CAPSULE_HEADER
**CapsuleHeaderArray
,
413 IN UINTN CapsuleCount
,
414 IN EFI_PHYSICAL_ADDRESS ScatterGatherList OPTIONAL
417 return mRT
->UpdateCapsule (
426 EfiQueryCapsuleCapabilities (
427 IN UEFI_CAPSULE_HEADER
**CapsuleHeaderArray
,
428 IN UINTN CapsuleCount
,
429 OUT UINT64
*MaximumCapsuleSize
,
430 OUT EFI_RESET_TYPE
*ResetType
433 return mRT
->QueryCapsuleCapabilities (
444 EfiQueryVariableInfo (
445 IN UINT32 Attributes
,
446 OUT UINT64
*MaximumVariableStorageSize
,
447 OUT UINT64
*RemainingVariableStorageSize
,
448 OUT UINT64
*MaximumVariableSize
451 return mRT
->QueryVariableInfo (
453 MaximumVariableStorageSize
,
454 RemainingVariableStorageSize
,