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504214c4 | 1 | /** @file\r |
8d3a5c82 | 2 | \r |
504214c4 | 3 | The internal header file includes the common header files, defines\r |
8a2d4996 | 4 | internal structure and functions used by Variable modules.\r |
504214c4 | 5 | \r |
b2bd493e | 6 | Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>\r |
e5eed7d3 | 7 | This program and the accompanying materials\r |
8d3a5c82 | 8 | are licensed and made available under the terms and conditions of the BSD License\r |
9 | which accompanies this distribution. The full text of the license may be found at\r | |
10 | http://opensource.org/licenses/bsd-license.php\r | |
11 | \r | |
12 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
13 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
14 | \r | |
504214c4 | 15 | **/\r |
8d3a5c82 | 16 | \r |
7c80e839 | 17 | #ifndef _VARIABLE_H_\r |
18 | #define _VARIABLE_H_\r | |
8d3a5c82 | 19 | \r |
39099938 | 20 | #include <PiDxe.h>\r |
8d3a5c82 | 21 | #include <Protocol/VariableWrite.h>\r |
88a5561c | 22 | #include <Protocol/FaultTolerantWrite.h>\r |
8d3a5c82 | 23 | #include <Protocol/FirmwareVolumeBlock.h>\r |
24 | #include <Protocol/Variable.h>\r | |
ff843847 | 25 | #include <Protocol/VariableLock.h>\r |
8d3a5c82 | 26 | #include <Library/PcdLib.h>\r |
0f7aff72 | 27 | #include <Library/HobLib.h>\r |
8d3a5c82 | 28 | #include <Library/UefiDriverEntryPoint.h>\r |
29 | #include <Library/DxeServicesTableLib.h>\r | |
30 | #include <Library/UefiRuntimeLib.h>\r | |
31 | #include <Library/DebugLib.h>\r | |
32 | #include <Library/BaseMemoryLib.h>\r | |
8d3a5c82 | 33 | #include <Library/UefiBootServicesTableLib.h>\r |
34 | #include <Library/UefiLib.h>\r | |
35 | #include <Library/BaseLib.h>\r | |
4cf894eb | 36 | #include <Library/SynchronizationLib.h>\r |
8d3a5c82 | 37 | #include <Library/MemoryAllocationLib.h>\r |
052ad7e1 | 38 | #include <Guid/GlobalVariable.h>\r |
01a5c994 | 39 | #include <Guid/EventGroup.h>\r |
3709c4cd | 40 | #include <Guid/VariableFormat.h>\r |
d6550260 | 41 | #include <Guid/SystemNvDataGuid.h>\r |
3e02ebb2 | 42 | #include <Guid/FaultTolerantWrite.h>\r |
a5f15e30 | 43 | #include <Guid/HardwareErrorVariable.h>\r |
8d3a5c82 | 44 | \r |
6675a21f SZ |
45 | #define VARIABLE_ATTRIBUTE_BS_RT (EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS)\r |
46 | #define VARIABLE_ATTRIBUTE_NV_BS_RT (VARIABLE_ATTRIBUTE_BS_RT | EFI_VARIABLE_NON_VOLATILE)\r | |
47 | #define VARIABLE_ATTRIBUTE_NV_BS_RT_AT (VARIABLE_ATTRIBUTE_NV_BS_RT | EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS)\r | |
48 | \r | |
49 | typedef struct {\r | |
50 | CHAR16 *Name;\r | |
51 | UINT32 Attributes;\r | |
52 | } GLOBAL_VARIABLE_ENTRY;\r | |
8d3a5c82 | 53 | \r |
255a3f33 RN |
54 | ///\r |
55 | /// The size of a 3 character ISO639 language code.\r | |
56 | ///\r | |
57 | #define ISO_639_2_ENTRY_SIZE 3\r | |
58 | \r | |
0f7aff72 RN |
59 | typedef enum {\r |
60 | VariableStoreTypeVolatile,\r | |
61 | VariableStoreTypeHob,\r | |
62 | VariableStoreTypeNv,\r | |
63 | VariableStoreTypeMax\r | |
64 | } VARIABLE_STORE_TYPE;\r | |
65 | \r | |
8d3a5c82 | 66 | typedef struct {\r |
67 | VARIABLE_HEADER *CurrPtr;\r | |
23b06935 SZ |
68 | //\r |
69 | // If both ADDED and IN_DELETED_TRANSITION variable are present,\r | |
70 | // InDeletedTransitionPtr will point to the IN_DELETED_TRANSITION one.\r | |
71 | // Otherwise, CurrPtr will point to the ADDED or IN_DELETED_TRANSITION one,\r | |
72 | // and InDeletedTransitionPtr will be NULL at the same time.\r | |
73 | //\r | |
74 | VARIABLE_HEADER *InDeletedTransitionPtr;\r | |
8d3a5c82 | 75 | VARIABLE_HEADER *EndPtr;\r |
76 | VARIABLE_HEADER *StartPtr;\r | |
77 | BOOLEAN Volatile;\r | |
78 | } VARIABLE_POINTER_TRACK;\r | |
79 | \r | |
80 | typedef struct {\r | |
0f7aff72 | 81 | EFI_PHYSICAL_ADDRESS HobVariableBase;\r |
8d3a5c82 | 82 | EFI_PHYSICAL_ADDRESS VolatileVariableBase;\r |
83 | EFI_PHYSICAL_ADDRESS NonVolatileVariableBase;\r | |
84 | EFI_LOCK VariableServicesLock;\r | |
fdb7765f | 85 | UINT32 ReentrantState;\r |
8d3a5c82 | 86 | } VARIABLE_GLOBAL;\r |
87 | \r | |
88 | typedef struct {\r | |
052ad7e1 | 89 | VARIABLE_GLOBAL VariableGlobal;\r |
8d3a5c82 | 90 | UINTN VolatileLastVariableOffset;\r |
91 | UINTN NonVolatileLastVariableOffset;\r | |
2fcdca1d | 92 | UINTN CommonVariableTotalSize;\r |
93 | UINTN HwErrVariableTotalSize;\r | |
255a3f33 RN |
94 | CHAR8 *PlatformLangCodes;\r |
95 | CHAR8 *LangCodes;\r | |
96 | CHAR8 *PlatformLang;\r | |
97 | CHAR8 Lang[ISO_639_2_ENTRY_SIZE + 1];\r | |
8a9e0b72 | 98 | EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbInstance;\r |
052ad7e1 A |
99 | } VARIABLE_MODULE_GLOBAL;\r |
100 | \r | |
101 | typedef struct {\r | |
102 | EFI_GUID *Guid;\r | |
103 | CHAR16 *Name;\r | |
b2bd493e SZ |
104 | UINTN VariableSize;\r |
105 | } VARIABLE_ENTRY_CONSISTENCY;\r | |
8d3a5c82 | 106 | \r |
ff843847 RN |
107 | typedef struct {\r |
108 | EFI_GUID Guid;\r | |
109 | CHAR16 *Name;\r | |
110 | LIST_ENTRY Link;\r | |
111 | } VARIABLE_ENTRY;\r | |
112 | \r | |
335e2681 SZ |
113 | /**\r |
114 | Flush the HOB variable to flash.\r | |
115 | \r | |
116 | @param[in] VariableName Name of variable has been updated or deleted.\r | |
117 | @param[in] VendorGuid Guid of variable has been updated or deleted.\r | |
118 | \r | |
119 | **/\r | |
120 | VOID\r | |
121 | FlushHobVariableToFlash (\r | |
122 | IN CHAR16 *VariableName,\r | |
123 | IN EFI_GUID *VendorGuid\r | |
124 | );\r | |
125 | \r | |
c24b392c | 126 | /**\r |
127 | Writes a buffer to variable storage space, in the working block.\r | |
128 | \r | |
8a2d4996 | 129 | This function writes a buffer to variable storage space into a firmware\r |
130 | volume block device. The destination is specified by the parameter\r | |
c24b392c | 131 | VariableBase. Fault Tolerant Write protocol is used for writing.\r |
132 | \r | |
8a2d4996 | 133 | @param VariableBase Base address of the variable to write.\r |
128ef095 | 134 | @param VariableBuffer Point to the variable data buffer.\r |
c24b392c | 135 | \r |
8a2d4996 | 136 | @retval EFI_SUCCESS The function completed successfully.\r |
137 | @retval EFI_NOT_FOUND Fail to locate Fault Tolerant Write protocol.\r | |
138 | @retval EFI_ABORTED The function could not complete successfully.\r | |
c24b392c | 139 | \r |
140 | **/\r | |
141 | EFI_STATUS\r | |
142 | FtwVariableSpace (\r | |
143 | IN EFI_PHYSICAL_ADDRESS VariableBase,\r | |
128ef095 | 144 | IN VARIABLE_STORE_HEADER *VariableBuffer\r |
c24b392c | 145 | );\r |
146 | \r | |
147 | \r | |
8a2d4996 | 148 | /**\r |
149 | Update the variable region with Variable information. These are the same \r | |
150 | arguments as the EFI Variable services.\r | |
151 | \r | |
152 | @param[in] VariableName Name of variable.\r | |
153 | \r | |
154 | @param[in] VendorGuid Guid of variable.\r | |
155 | \r | |
156 | @param[in] Data Variable data.\r | |
157 | \r | |
158 | @param[in] DataSize Size of data. 0 means delete.\r | |
159 | \r | |
160 | @param[in] Attributes Attribues of the variable.\r | |
161 | \r | |
23b06935 | 162 | @param[in, out] Variable The variable information that is used to keep track of variable usage.\r |
8a2d4996 | 163 | \r |
164 | @retval EFI_SUCCESS The update operation is success.\r | |
165 | \r | |
166 | @retval EFI_OUT_OF_RESOURCES Variable region is full, cannot write other data into this region.\r | |
167 | \r | |
168 | **/\r | |
169 | EFI_STATUS\r | |
170 | UpdateVariable (\r | |
171 | IN CHAR16 *VariableName,\r | |
172 | IN EFI_GUID *VendorGuid,\r | |
173 | IN VOID *Data,\r | |
174 | IN UINTN DataSize,\r | |
175 | IN UINT32 Attributes OPTIONAL,\r | |
23b06935 | 176 | IN OUT VARIABLE_POINTER_TRACK *Variable\r |
8a2d4996 | 177 | );\r |
178 | \r | |
179 | \r | |
180 | /**\r | |
181 | Return TRUE if ExitBootServices () has been called.\r | |
182 | \r | |
183 | @retval TRUE If ExitBootServices () has been called.\r | |
184 | **/\r | |
185 | BOOLEAN\r | |
186 | AtRuntime (\r | |
187 | VOID\r | |
188 | );\r | |
189 | \r | |
190 | /**\r | |
191 | Initializes a basic mutual exclusion lock.\r | |
192 | \r | |
193 | This function initializes a basic mutual exclusion lock to the released state \r | |
194 | and returns the lock. Each lock provides mutual exclusion access at its task \r | |
195 | priority level. Since there is no preemption or multiprocessor support in EFI,\r | |
196 | acquiring the lock only consists of raising to the locks TPL.\r | |
197 | If Lock is NULL, then ASSERT().\r | |
198 | If Priority is not a valid TPL value, then ASSERT().\r | |
199 | \r | |
200 | @param Lock A pointer to the lock data structure to initialize.\r | |
201 | @param Priority EFI TPL is associated with the lock.\r | |
202 | \r | |
203 | @return The lock.\r | |
204 | \r | |
205 | **/\r | |
206 | EFI_LOCK *\r | |
207 | InitializeLock (\r | |
208 | IN OUT EFI_LOCK *Lock,\r | |
209 | IN EFI_TPL Priority\r | |
210 | );\r | |
211 | \r | |
212 | \r | |
213 | /**\r | |
214 | Acquires lock only at boot time. Simply returns at runtime.\r | |
215 | \r | |
216 | This is a temperary function that will be removed when\r | |
217 | EfiAcquireLock() in UefiLib can handle the call in UEFI\r | |
218 | Runtimer driver in RT phase.\r | |
219 | It calls EfiAcquireLock() at boot time, and simply returns\r | |
220 | at runtime.\r | |
221 | \r | |
222 | @param Lock A pointer to the lock to acquire.\r | |
223 | \r | |
224 | **/\r | |
225 | VOID\r | |
226 | AcquireLockOnlyAtBootTime (\r | |
227 | IN EFI_LOCK *Lock\r | |
228 | );\r | |
229 | \r | |
230 | \r | |
231 | /**\r | |
232 | Releases lock only at boot time. Simply returns at runtime.\r | |
233 | \r | |
234 | This is a temperary function which will be removed when\r | |
235 | EfiReleaseLock() in UefiLib can handle the call in UEFI\r | |
236 | Runtimer driver in RT phase.\r | |
237 | It calls EfiReleaseLock() at boot time and simply returns\r | |
238 | at runtime.\r | |
239 | \r | |
240 | @param Lock A pointer to the lock to release.\r | |
241 | \r | |
242 | **/\r | |
243 | VOID\r | |
244 | ReleaseLockOnlyAtBootTime (\r | |
245 | IN EFI_LOCK *Lock\r | |
246 | ); \r | |
247 | \r | |
248 | /**\r | |
249 | Retrive the FVB protocol interface by HANDLE.\r | |
250 | \r | |
251 | @param[in] FvBlockHandle The handle of FVB protocol that provides services for\r | |
252 | reading, writing, and erasing the target block.\r | |
253 | @param[out] FvBlock The interface of FVB protocol\r | |
254 | \r | |
255 | @retval EFI_SUCCESS The interface information for the specified protocol was returned.\r | |
256 | @retval EFI_UNSUPPORTED The device does not support the FVB protocol.\r | |
257 | @retval EFI_INVALID_PARAMETER FvBlockHandle is not a valid EFI_HANDLE or FvBlock is NULL.\r | |
258 | \r | |
259 | **/\r | |
260 | EFI_STATUS\r | |
261 | GetFvbByHandle (\r | |
262 | IN EFI_HANDLE FvBlockHandle,\r | |
263 | OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvBlock\r | |
264 | );\r | |
265 | \r | |
266 | \r | |
267 | /**\r | |
268 | Retrive the Swap Address Range protocol interface.\r | |
269 | \r | |
270 | @param[out] SarProtocol The interface of SAR protocol\r | |
271 | \r | |
272 | @retval EFI_SUCCESS The SAR protocol instance was found and returned in SarProtocol.\r | |
273 | @retval EFI_NOT_FOUND The SAR protocol instance was not found.\r | |
274 | @retval EFI_INVALID_PARAMETER SarProtocol is NULL.\r | |
275 | \r | |
276 | **/\r | |
277 | EFI_STATUS\r | |
278 | GetSarProtocol (\r | |
279 | OUT VOID **SarProtocol\r | |
280 | );\r | |
281 | \r | |
282 | /**\r | |
283 | Function returns an array of handles that support the FVB protocol\r | |
284 | in a buffer allocated from pool. \r | |
285 | \r | |
286 | @param[out] NumberHandles The number of handles returned in Buffer.\r | |
287 | @param[out] Buffer A pointer to the buffer to return the requested\r | |
288 | array of handles that support FVB protocol.\r | |
289 | \r | |
290 | @retval EFI_SUCCESS The array of handles was returned in Buffer, and the number of\r | |
291 | handles in Buffer was returned in NumberHandles.\r | |
292 | @retval EFI_NOT_FOUND No FVB handle was found.\r | |
293 | @retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the matching results.\r | |
294 | @retval EFI_INVALID_PARAMETER NumberHandles is NULL or Buffer is NULL.\r | |
295 | \r | |
296 | **/\r | |
297 | EFI_STATUS\r | |
298 | GetFvbCountAndBuffer (\r | |
299 | OUT UINTN *NumberHandles,\r | |
300 | OUT EFI_HANDLE **Buffer\r | |
301 | );\r | |
302 | \r | |
303 | /**\r | |
304 | Initializes variable store area for non-volatile and volatile variable.\r | |
305 | \r | |
306 | @retval EFI_SUCCESS Function successfully executed.\r | |
307 | @retval EFI_OUT_OF_RESOURCES Fail to allocate enough memory resource.\r | |
308 | \r | |
309 | **/\r | |
310 | EFI_STATUS\r | |
311 | VariableCommonInitialize (\r | |
312 | VOID\r | |
313 | );\r | |
314 | \r | |
315 | /**\r | |
316 | This function reclaims variable storage if free size is below the threshold.\r | |
317 | \r | |
318 | **/\r | |
319 | VOID\r | |
320 | ReclaimForOS(\r | |
321 | VOID\r | |
322 | ); \r | |
323 | \r | |
324 | \r | |
325 | /**\r | |
326 | Initializes variable write service after FVB was ready.\r | |
327 | \r | |
328 | @retval EFI_SUCCESS Function successfully executed.\r | |
329 | @retval Others Fail to initialize the variable service.\r | |
330 | \r | |
331 | **/\r | |
332 | EFI_STATUS\r | |
333 | VariableWriteServiceInitialize (\r | |
334 | VOID\r | |
335 | );\r | |
336 | \r | |
337 | /**\r | |
338 | Retrive the SMM Fault Tolerent Write protocol interface.\r | |
339 | \r | |
340 | @param[out] FtwProtocol The interface of SMM Ftw protocol\r | |
341 | \r | |
342 | @retval EFI_SUCCESS The SMM SAR protocol instance was found and returned in SarProtocol.\r | |
343 | @retval EFI_NOT_FOUND The SMM SAR protocol instance was not found.\r | |
344 | @retval EFI_INVALID_PARAMETER SarProtocol is NULL.\r | |
345 | \r | |
346 | **/\r | |
347 | EFI_STATUS\r | |
348 | GetFtwProtocol (\r | |
349 | OUT VOID **FtwProtocol\r | |
350 | );\r | |
351 | \r | |
352 | /**\r | |
353 | Get the proper fvb handle and/or fvb protocol by the given Flash address.\r | |
354 | \r | |
355 | @param[in] Address The Flash address.\r | |
356 | @param[out] FvbHandle In output, if it is not NULL, it points to the proper FVB handle.\r | |
357 | @param[out] FvbProtocol In output, if it is not NULL, it points to the proper FVB protocol.\r | |
358 | \r | |
359 | **/\r | |
360 | EFI_STATUS\r | |
361 | GetFvbInfoByAddress (\r | |
362 | IN EFI_PHYSICAL_ADDRESS Address,\r | |
363 | OUT EFI_HANDLE *FvbHandle OPTIONAL,\r | |
364 | OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvbProtocol OPTIONAL\r | |
365 | );\r | |
366 | \r | |
367 | /**\r | |
368 | \r | |
369 | This code finds variable in storage blocks (Volatile or Non-Volatile).\r | |
370 | \r | |
371 | @param VariableName Name of Variable to be found.\r | |
372 | @param VendorGuid Variable vendor GUID.\r | |
373 | @param Attributes Attribute value of the variable found.\r | |
374 | @param DataSize Size of Data found. If size is less than the\r | |
375 | data, this value contains the required size.\r | |
376 | @param Data Data pointer.\r | |
377 | \r | |
378 | @return EFI_INVALID_PARAMETER Invalid parameter.\r | |
379 | @return EFI_SUCCESS Find the specified variable.\r | |
380 | @return EFI_NOT_FOUND Not found.\r | |
381 | @return EFI_BUFFER_TO_SMALL DataSize is too small for the result.\r | |
382 | \r | |
383 | **/\r | |
384 | EFI_STATUS\r | |
385 | EFIAPI\r | |
386 | VariableServiceGetVariable (\r | |
387 | IN CHAR16 *VariableName,\r | |
388 | IN EFI_GUID *VendorGuid,\r | |
389 | OUT UINT32 *Attributes OPTIONAL,\r | |
390 | IN OUT UINTN *DataSize,\r | |
391 | OUT VOID *Data\r | |
392 | );\r | |
393 | \r | |
394 | /**\r | |
395 | \r | |
396 | This code Finds the Next available variable.\r | |
397 | \r | |
398 | @param VariableNameSize Size of the variable name.\r | |
399 | @param VariableName Pointer to variable name.\r | |
400 | @param VendorGuid Variable Vendor Guid.\r | |
401 | \r | |
402 | @return EFI_INVALID_PARAMETER Invalid parameter.\r | |
403 | @return EFI_SUCCESS Find the specified variable.\r | |
404 | @return EFI_NOT_FOUND Not found.\r | |
405 | @return EFI_BUFFER_TO_SMALL DataSize is too small for the result.\r | |
406 | \r | |
407 | **/\r | |
408 | EFI_STATUS\r | |
409 | EFIAPI\r | |
410 | VariableServiceGetNextVariableName (\r | |
411 | IN OUT UINTN *VariableNameSize,\r | |
412 | IN OUT CHAR16 *VariableName,\r | |
413 | IN OUT EFI_GUID *VendorGuid\r | |
414 | );\r | |
415 | \r | |
416 | /**\r | |
417 | \r | |
418 | This code sets variable in storage blocks (Volatile or Non-Volatile).\r | |
419 | \r | |
420 | @param VariableName Name of Variable to be found.\r | |
421 | @param VendorGuid Variable vendor GUID.\r | |
422 | @param Attributes Attribute value of the variable found\r | |
423 | @param DataSize Size of Data found. If size is less than the\r | |
424 | data, this value contains the required size.\r | |
425 | @param Data Data pointer.\r | |
426 | \r | |
427 | @return EFI_INVALID_PARAMETER Invalid parameter.\r | |
428 | @return EFI_SUCCESS Set successfully.\r | |
429 | @return EFI_OUT_OF_RESOURCES Resource not enough to set variable.\r | |
430 | @return EFI_NOT_FOUND Not found.\r | |
431 | @return EFI_WRITE_PROTECTED Variable is read-only.\r | |
432 | \r | |
433 | **/\r | |
434 | EFI_STATUS\r | |
435 | EFIAPI\r | |
436 | VariableServiceSetVariable (\r | |
437 | IN CHAR16 *VariableName,\r | |
438 | IN EFI_GUID *VendorGuid,\r | |
439 | IN UINT32 Attributes,\r | |
440 | IN UINTN DataSize,\r | |
441 | IN VOID *Data\r | |
442 | );\r | |
443 | \r | |
b2bd493e SZ |
444 | /**\r |
445 | \r | |
446 | This code returns information about the EFI variables.\r | |
447 | \r | |
448 | @param Attributes Attributes bitmask to specify the type of variables\r | |
449 | on which to return information.\r | |
450 | @param MaximumVariableStorageSize Pointer to the maximum size of the storage space available\r | |
451 | for the EFI variables associated with the attributes specified.\r | |
452 | @param RemainingVariableStorageSize Pointer to the remaining size of the storage space available\r | |
453 | for EFI variables associated with the attributes specified.\r | |
454 | @param MaximumVariableSize Pointer to the maximum size of an individual EFI variables\r | |
455 | associated with the attributes specified.\r | |
456 | \r | |
457 | @return EFI_SUCCESS Query successfully.\r | |
458 | \r | |
459 | **/\r | |
460 | EFI_STATUS\r | |
461 | EFIAPI\r | |
462 | VariableServiceQueryVariableInfoInternal (\r | |
463 | IN UINT32 Attributes,\r | |
464 | OUT UINT64 *MaximumVariableStorageSize,\r | |
465 | OUT UINT64 *RemainingVariableStorageSize,\r | |
466 | OUT UINT64 *MaximumVariableSize\r | |
467 | );\r | |
468 | \r | |
8a2d4996 | 469 | /**\r |
470 | \r | |
471 | This code returns information about the EFI variables.\r | |
472 | \r | |
473 | @param Attributes Attributes bitmask to specify the type of variables\r | |
474 | on which to return information.\r | |
475 | @param MaximumVariableStorageSize Pointer to the maximum size of the storage space available\r | |
476 | for the EFI variables associated with the attributes specified.\r | |
477 | @param RemainingVariableStorageSize Pointer to the remaining size of the storage space available\r | |
478 | for EFI variables associated with the attributes specified.\r | |
479 | @param MaximumVariableSize Pointer to the maximum size of an individual EFI variables\r | |
480 | associated with the attributes specified.\r | |
481 | \r | |
482 | @return EFI_INVALID_PARAMETER An invalid combination of attribute bits was supplied.\r | |
483 | @return EFI_SUCCESS Query successfully.\r | |
484 | @return EFI_UNSUPPORTED The attribute is not supported on this platform.\r | |
485 | \r | |
486 | **/\r | |
487 | EFI_STATUS\r | |
488 | EFIAPI\r | |
489 | VariableServiceQueryVariableInfo (\r | |
490 | IN UINT32 Attributes,\r | |
491 | OUT UINT64 *MaximumVariableStorageSize,\r | |
492 | OUT UINT64 *RemainingVariableStorageSize,\r | |
493 | OUT UINT64 *MaximumVariableSize\r | |
494 | ); \r | |
ff843847 RN |
495 | \r |
496 | /**\r | |
497 | Mark a variable that will become read-only after leaving the DXE phase of execution.\r | |
498 | \r | |
499 | @param[in] This The VARIABLE_LOCK_PROTOCOL instance.\r | |
500 | @param[in] VariableName A pointer to the variable name that will be made read-only subsequently.\r | |
501 | @param[in] VendorGuid A pointer to the vendor GUID that will be made read-only subsequently.\r | |
502 | \r | |
503 | @retval EFI_SUCCESS The variable specified by the VariableName and the VendorGuid was marked\r | |
504 | as pending to be read-only.\r | |
505 | @retval EFI_INVALID_PARAMETER VariableName or VendorGuid is NULL.\r | |
506 | Or VariableName is an empty string.\r | |
507 | @retval EFI_ACCESS_DENIED EFI_END_OF_DXE_EVENT_GROUP_GUID or EFI_EVENT_GROUP_READY_TO_BOOT has\r | |
508 | already been signaled.\r | |
509 | @retval EFI_OUT_OF_RESOURCES There is not enough resource to hold the lock request.\r | |
510 | **/\r | |
511 | EFI_STATUS\r | |
512 | EFIAPI\r | |
513 | VariableLockRequestToLock (\r | |
514 | IN CONST EDKII_VARIABLE_LOCK_PROTOCOL *This,\r | |
515 | IN CHAR16 *VariableName,\r | |
516 | IN EFI_GUID *VendorGuid\r | |
517 | );\r | |
518 | \r | |
8a2d4996 | 519 | extern VARIABLE_MODULE_GLOBAL *mVariableModuleGlobal;\r |
520 | \r | |
8d3a5c82 | 521 | #endif\r |