1 /** @file
2 Null function implementation for EFI S3 boot script.
3
4 Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR>
5
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions
8 of the BSD License which accompanies this distribution. The
9 full text of the license may be found at
10 http://opensource.org/licenses/bsd-license.php
11
12 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
13 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14
15 **/
16
17
18 #include <Base.h>
19 #include <Library/S3BootScriptLib.h>
20
21 /**
22 Save I/O write to boot script
23
24 @param Width the width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
25 @param Address The base address of the I/O operations.
26 @param Count The number of I/O operations to perform.
27 @param Buffer The source buffer from which to write data.
28
29 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
30 @retval RETURN_SUCCESS Opcode is added.
31 **/
32 RETURN_STATUS
33 EFIAPI
S3BootScriptSaveIoWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN UINTN Count,IN VOID * Buffer)34 S3BootScriptSaveIoWrite (
35 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
36 IN UINT64 Address,
37 IN UINTN Count,
38 IN VOID *Buffer
39 )
40 {
41 return RETURN_SUCCESS;
42 }
43
44 /**
45 Adds a record for an I/O modify operation into a S3 boot script table
46
47 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
48 @param Address The base address of the I/O operations.
49 @param Data A pointer to the data to be OR-ed.
50 @param DataMask A pointer to the data mask to be AND-ed with the data read from the register
51
52 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
53 @retval RETURN_SUCCESS Opcode is added.
54 **/
55 RETURN_STATUS
56 EFIAPI
S3BootScriptSaveIoReadWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask)57 S3BootScriptSaveIoReadWrite (
58 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
59 IN UINT64 Address,
60 IN VOID *Data,
61 IN VOID *DataMask
62 )
63 {
64 return RETURN_SUCCESS;
65 }
66
67 /**
68 Adds a record for a memory write operation into a specified boot script table.
69
70 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
71 @param Address The base address of the memory operations
72 @param Count The number of memory operations to perform.
73 @param Buffer The source buffer from which to write the data.
74
75 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
76 @retval RETURN_SUCCESS Opcode is added.
77 **/
78 RETURN_STATUS
79 EFIAPI
S3BootScriptSaveMemWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN UINTN Count,IN VOID * Buffer)80 S3BootScriptSaveMemWrite (
81 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
82 IN UINT64 Address,
83 IN UINTN Count,
84 IN VOID *Buffer
85 )
86 {
87 return RETURN_SUCCESS;
88 }
89 /**
90 Adds a record for a memory modify operation into a specified boot script table.
91
92 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
93 @param Address The base address of the memory operations. Address needs alignment if required
94 @param Data A pointer to the data to be OR-ed.
95 @param DataMask A pointer to the data mask to be AND-ed with the data read from the register.
96
97 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
98 @retval RETURN_SUCCESS Opcode is added.
99 **/
100 RETURN_STATUS
101 EFIAPI
S3BootScriptSaveMemReadWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask)102 S3BootScriptSaveMemReadWrite (
103 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
104 IN UINT64 Address,
105 IN VOID *Data,
106 IN VOID *DataMask
107 )
108 {
109 return RETURN_SUCCESS;
110 }
111 /**
112 Adds a record for a PCI configuration space write operation into a specified boot script table.
113
114 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
115 @param Address The address within the PCI configuration space.
116 @param Count The number of PCI operations to perform.
117 @param Buffer The source buffer from which to write the data.
118
119 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
120 @retval RETURN_SUCCESS Opcode is added.
121 **/
122 RETURN_STATUS
123 EFIAPI
S3BootScriptSavePciCfgWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN UINTN Count,IN VOID * Buffer)124 S3BootScriptSavePciCfgWrite (
125 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
126 IN UINT64 Address,
127 IN UINTN Count,
128 IN VOID *Buffer
129 )
130 {
131 return RETURN_SUCCESS;
132 }
133
134 /**
135 Adds a record for a PCI configuration space modify operation into a specified boot script table.
136
137 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
138 @param Address The address within the PCI configuration space.
139 @param Data A pointer to the data to be OR-ed.The size depends on Width.
140 @param DataMask A pointer to the data mask to be AND-ed.
141
142 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
143 @retval RETURN__SUCCESS Opcode is added.
144 **/
145 RETURN_STATUS
146 EFIAPI
S3BootScriptSavePciCfgReadWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask)147 S3BootScriptSavePciCfgReadWrite (
148 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
149 IN UINT64 Address,
150 IN VOID *Data,
151 IN VOID *DataMask
152 )
153 {
154 return RETURN_SUCCESS;
155 }
156 /**
157 Adds a record for a PCI configuration space modify operation into a specified boot script table.
158
159 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
160 @param Segment The PCI segment number for Address.
161 @param Address The address within the PCI configuration space.
162 @param Count The number of PCI operations to perform.
163 @param Buffer The source buffer from which to write the data.
164
165 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
166 @retval RETURN_SUCCESS Opcode is added.
167 **/
168 RETURN_STATUS
169 EFIAPI
S3BootScriptSavePciCfg2Write(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT16 Segment,IN UINT64 Address,IN UINTN Count,IN VOID * Buffer)170 S3BootScriptSavePciCfg2Write (
171 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
172 IN UINT16 Segment,
173 IN UINT64 Address,
174 IN UINTN Count,
175 IN VOID *Buffer
176 )
177 {
178 return RETURN_SUCCESS;
179 }
180 /**
181 Adds a record for a PCI configuration space modify operation into a specified boot script table.
182
183 @param Width The width of the I/O operations.Enumerated in S3_BOOT_SCRIPT_LIB_WIDTH.
184 @param Segment The PCI segment number for Address.
185 @param Address The address within the PCI configuration space.
186 @param Data A pointer to the data to be OR-ed. The size depends on Width.
187 @param DataMask A pointer to the data mask to be AND-ed.
188
189 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
190 @retval RETURN_SUCCESS Opcode is added.
191 **/
192 RETURN_STATUS
193 EFIAPI
S3BootScriptSavePciCfg2ReadWrite(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT16 Segment,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask)194 S3BootScriptSavePciCfg2ReadWrite (
195 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
196 IN UINT16 Segment,
197 IN UINT64 Address,
198 IN VOID *Data,
199 IN VOID *DataMask
200 )
201 {
202 return RETURN_SUCCESS;
203 }
204 /**
205 Adds a record for an SMBus command execution into a specified boot script table.
206
207 @param SmBusAddress Address that encodes the SMBUS Slave Address, SMBUS Command, SMBUS Data Length, and PEC.
208 @param Operation Indicates which particular SMBus protocol it will use to execute the SMBus
209 transactions.
210 @param Length A pointer to signify the number of bytes that this operation will do.
211 @param Buffer Contains the value of data to execute to the SMBUS slave device.
212
213 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
214 @retval RETURN_SUCCESS Opcode is added.
215 **/
216 RETURN_STATUS
217 EFIAPI
S3BootScriptSaveSmbusExecute(IN UINTN SmBusAddress,IN EFI_SMBUS_OPERATION Operation,IN UINTN * Length,IN VOID * Buffer)218 S3BootScriptSaveSmbusExecute (
219 IN UINTN SmBusAddress,
220 IN EFI_SMBUS_OPERATION Operation,
221 IN UINTN *Length,
222 IN VOID *Buffer
223 )
224 {
225 return RETURN_SUCCESS;
226 }
227 /**
228 Adds a record for an execution stall on the processor into a specified boot script table.
229
230 @param Duration Duration in microseconds of the stall
231
232 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
233 @retval RETURN_SUCCESS Opcode is added.
234 **/
235 RETURN_STATUS
236 EFIAPI
S3BootScriptSaveStall(IN UINTN Duration)237 S3BootScriptSaveStall (
238 IN UINTN Duration
239 )
240 {
241 return RETURN_SUCCESS;
242 }
243 /**
244 Adds a record for dispatching specified arbitrary code into a specified boot script table.
245
246 @param EntryPoint Entry point of the code to be dispatched.
247
248 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
249 @retval RETURN_SUCCESS Opcode is added.
250 **/
251 RETURN_STATUS
252 EFIAPI
S3BootScriptSaveDispatch(IN VOID * EntryPoint)253 S3BootScriptSaveDispatch (
254 IN VOID *EntryPoint
255 )
256 {
257 return RETURN_SUCCESS;
258 }
259 /**
260 Adds a record for dispatching specified arbitrary code into a specified boot script table.
261
262 @param EntryPoint Entry point of the code to be dispatched.
263 @param Context Argument to be passed into the EntryPoint of the code to be dispatched.
264
265 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
266 @retval RETURN_SUCCESS Opcode is added.
267 **/
268 RETURN_STATUS
269 EFIAPI
S3BootScriptSaveDispatch2(IN VOID * EntryPoint,IN VOID * Context)270 S3BootScriptSaveDispatch2 (
271 IN VOID *EntryPoint,
272 IN VOID *Context
273 )
274 {
275 return RETURN_SUCCESS;
276 }
277
278 /**
279 Adds a record for memory reads of the memory location and continues when the exit criteria is
280 satisfied or after a defined duration.
281
282 Please aware, below interface is different with PI specification, Vol 5:
283 EFI_S3_SAVE_STATE_PROTOCOL.Write() for EFI_BOOT_SCRIPT_MEM_POLL_OPCODE.
284 "Duration" below is microseconds, while "Delay" in PI specification means
285 the number of 100ns units to poll.
286
287 @param Width The width of the memory operations.
288 @param Address The base address of the memory operations.
289 @param BitMask A pointer to the bit mask to be AND-ed with the data read from the register.
290 @param BitValue A pointer to the data value after to be Masked.
291 @param Duration Duration in microseconds of the stall.
292 @param LoopTimes The times of the register polling.
293
294 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
295 @retval RETURN_SUCCESS Opcode is added.
296
297 **/
298 RETURN_STATUS
299 EFIAPI
S3BootScriptSaveMemPoll(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * BitMask,IN VOID * BitValue,IN UINTN Duration,IN UINT64 LoopTimes)300 S3BootScriptSaveMemPoll (
301 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
302 IN UINT64 Address,
303 IN VOID *BitMask,
304 IN VOID *BitValue,
305 IN UINTN Duration,
306 IN UINT64 LoopTimes
307 )
308 {
309 return RETURN_SUCCESS;
310 }
311
312 /**
313 Store arbitrary information in the boot script table. This opcode is a no-op on dispatch and is only
314 used for debugging script issues.
315
316 @param InformationLength Length of the data in bytes
317 @param Information Information to be logged in the boot scrpit
318
319 @retval RETURN_UNSUPPORTED If entering runtime, this method will not support.
320 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
321 @retval RETURN_SUCCESS Opcode is added.
322
323 **/
324 RETURN_STATUS
325 EFIAPI
S3BootScriptSaveInformation(IN UINT32 InformationLength,IN VOID * Information)326 S3BootScriptSaveInformation (
327 IN UINT32 InformationLength,
328 IN VOID *Information
329 )
330 {
331 return RETURN_SUCCESS;
332 }
333 /**
334 Adds a record for I/O reads the I/O location and continues when the exit criteria is satisfied or after a
335 defined duration.
336
337 @param Width The width of the I/O operations.
338 @param Address The base address of the I/O operations.
339 @param Data The comparison value used for the polling exit criteria.
340 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
341 in Data are ignored when polling the memory address.
342 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
343 granularity so the delay may be longer.
344
345 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
346 @retval RETURN_SUCCESS Opcode is added.
347
348 **/
349 RETURN_STATUS
350 EFIAPI
S3BootScriptSaveIoPoll(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask,IN UINT64 Delay)351 S3BootScriptSaveIoPoll (
352 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
353 IN UINT64 Address,
354 IN VOID *Data,
355 IN VOID *DataMask,
356 IN UINT64 Delay
357 )
358 {
359 return RETURN_SUCCESS;
360 }
361
362 /**
363 Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
364 after a defined duration.
365
366 @param Width The width of the I/O operations.
367 @param Address The address within the PCI configuration space.
368 @param Data The comparison value used for the polling exit criteria.
369 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
370 in Data are ignored when polling the memory address
371 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
372 granularity so the delay may be longer.
373
374 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
375 @retval RETURN_SUCCESS Opcode is added.
376
377 **/
378 RETURN_STATUS
379 EFIAPI
S3BootScriptSavePciPoll(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask,IN UINT64 Delay)380 S3BootScriptSavePciPoll (
381 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
382 IN UINT64 Address,
383 IN VOID *Data,
384 IN VOID *DataMask,
385 IN UINT64 Delay
386 )
387 {
388 return RETURN_SUCCESS;
389 }
390 /**
391 Adds a record for PCI configuration space reads and continues when the exit criteria is satisfied or
392 after a defined duration.
393
394 @param Width The width of the I/O operations.
395 @param Segment The PCI segment number for Address.
396 @param Address The address within the PCI configuration space.
397 @param Data The comparison value used for the polling exit criteria.
398 @param DataMask Mask used for the polling criteria. The bits in the bytes below Width which are zero
399 in Data are ignored when polling the memory address
400 @param Delay The number of 100ns units to poll. Note that timer available may be of poorer
401 granularity so the delay may be longer.
402
403 @retval RETURN_OUT_OF_RESOURCES Not enough memory for the table do operation.
404 @retval RETURN_SUCCESS Opcode is added.
405 @note A known Limitations in the implementation: When interpreting the opcode EFI_BOOT_SCRIPT_PCI_CONFIG2_WRITE_OPCODE
406 EFI_BOOT_SCRIPT_PCI_CONFIG2_READ_WRITE_OPCODE and EFI_BOOT_SCRIPT_PCI_CONFIG2_POLL_OPCODE, the 'Segment' parameter is assumed as
407 Zero, or else, assert.
408
409 **/
410 RETURN_STATUS
411 EFIAPI
S3BootScriptSavePci2Poll(IN S3_BOOT_SCRIPT_LIB_WIDTH Width,IN UINT16 Segment,IN UINT64 Address,IN VOID * Data,IN VOID * DataMask,IN UINT64 Delay)412 S3BootScriptSavePci2Poll (
413 IN S3_BOOT_SCRIPT_LIB_WIDTH Width,
414 IN UINT16 Segment,
415 IN UINT64 Address,
416 IN VOID *Data,
417 IN VOID *DataMask,
418 IN UINT64 Delay
419 )
420 {
421 return RETURN_SUCCESS;
422 }
423 /**
424 Save ASCII string information specified by Buffer to
425 boot script with opcode EFI_BOOT_SCRIPT_INFORMATION_OPCODE
426
427 @param String the ascii string to store into the S3 boot script table
428
429 @retval RETURN_NOT_FOUND BootScriptSave Protocol not exist.
430 @retval RETURN_SUCCESS BootScriptSave Protocol exist, always returns RETURN_SUCCESS
431
432 **/
433 RETURN_STATUS
434 EFIAPI
S3BootScriptSaveInformationAsciiString(IN CONST CHAR8 * String)435 S3BootScriptSaveInformationAsciiString (
436 IN CONST CHAR8 *String
437 )
438 {
439 return RETURN_SUCCESS;
440 }
441 /**
442 This is an function to close the S3 boot script table. The function could only be called in
443 BOOT time phase. To comply with the Framework spec definition on
444 EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable(), this function will fulfill following things:
445 1. Closes the specified boot script table
446 2. It allocates a new memory pool to duplicate all the boot scripts in the specified table.
447 Once this function is called, the table maintained by the library will be destroyed
448 after it is copied into the allocated pool.
449 3. Any attempts to add a script record after calling this function will cause a new table
450 to be created by the library.
451 4. The base address of the allocated pool will be returned in Address. Note that after
452 using the boot script table, the CALLER is responsible for freeing the pool that is allocated
453 by this function.
454
455 In Spec PI1.1, this EFI_BOOT_SCRIPT_SAVE_PROTOCOL.CloseTable() is retired. By then it is not
456 necessary to provide this API in BootScriptLib. To provides this API for now is only to meet
457 the requirement from Framework Spec.
458
459 If anyone does call CloseTable() on a real platform, then the caller is responsible for figuring out
460 how to get the script to run on an S3 resume because the boot script maintained by the lib will be
461 destroyed.
462
463 @return the base address of the new copy of the boot script table.
464
465 **/
466 UINT8*
467 EFIAPI
S3BootScriptCloseTable(VOID)468 S3BootScriptCloseTable (
469 VOID
470 )
471 {
472 return 0;
473 }
474 /**
475 Executes the S3 boot script table.
476
477 @param RETURN_SUCCESS The boot script table was executed successfully.
478 @param RETURN_UNSUPPORTED Invalid script table or opcode.
479 **/
480 RETURN_STATUS
481 EFIAPI
S3BootScriptExecute(VOID)482 S3BootScriptExecute (
483 VOID
484 )
485 {
486 return RETURN_SUCCESS;
487 }
488 /**
489 Move the last boot script entry to the position
490
491 @param BeforeOrAfter Specifies whether the opcode is stored before (TRUE) or after (FALSE) the position
492 in the boot script table specified by Position. If Position is NULL or points to
493 NULL then the new opcode is inserted at the beginning of the table (if TRUE) or end
494 of the table (if FALSE).
495 @param Position On entry, specifies the position in the boot script table where the opcode will be
496 inserted, either before or after, depending on BeforeOrAfter. On exit, specifies
497 the position of the inserted opcode in the boot script table.
498
499 @retval RETURN_OUT_OF_RESOURCES The table is not available.
500 @retval RETURN_INVALID_PARAMETER The Position is not a valid position in the boot script table.
501 @retval RETURN_SUCCESS Opcode is inserted.
502 **/
503 RETURN_STATUS
504 EFIAPI
S3BootScriptMoveLastOpcode(IN BOOLEAN BeforeOrAfter,IN OUT VOID ** Position OPTIONAL)505 S3BootScriptMoveLastOpcode (
506 IN BOOLEAN BeforeOrAfter,
507 IN OUT VOID **Position OPTIONAL
508 )
509 {
510 return RETURN_SUCCESS;
511 }
512 /**
513 Find a label within the boot script table and, if not present, optionally create it.
514
515 @param BeforeOrAfter Specifies whether the opcode is stored before (TRUE)
516 or after (FALSE) the position in the boot script table
517 specified by Position.
518 @param CreateIfNotFound Specifies whether the label will be created if the label
519 does not exists (TRUE) or not (FALSE).
520 @param Position On entry, specifies the position in the boot script table
521 where the opcode will be inserted, either before or after,
522 depending on BeforeOrAfter. On exit, specifies the position
523 of the inserted opcode in the boot script table.
524 @param Label Points to the label which will be inserted in the boot script table.
525
526 @retval EFI_SUCCESS The operation succeeded. A record was added into the
527 specified script table.
528 @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
529 If the opcode is unknow or not supported because of the PCD
530 Feature Flags.
531 @retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
532
533 **/
534 RETURN_STATUS
535 EFIAPI
S3BootScriptLabel(IN BOOLEAN BeforeOrAfter,IN BOOLEAN CreateIfNotFound,IN OUT VOID ** Position OPTIONAL,IN CONST CHAR8 * Label)536 S3BootScriptLabel (
537 IN BOOLEAN BeforeOrAfter,
538 IN BOOLEAN CreateIfNotFound,
539 IN OUT VOID **Position OPTIONAL,
540 IN CONST CHAR8 *Label
541 )
542 {
543 return RETURN_SUCCESS;
544 }
545 /**
546 Compare two positions in the boot script table and return their relative position.
547 @param Position1 The positions in the boot script table to compare
548 @param Position2 The positions in the boot script table to compare
549 @param RelativePosition On return, points to the result of the comparison
550
551 @retval EFI_SUCCESS The operation succeeded. A record was added into the
552 specified script table.
553 @retval EFI_INVALID_PARAMETER The parameter is illegal or the given boot script is not supported.
554 If the opcode is unknow or not supported because of the PCD
555 Feature Flags.
556 @retval EFI_OUT_OF_RESOURCES There is insufficient memory to store the boot script.
557
558 **/
559 RETURN_STATUS
560 EFIAPI
S3BootScriptCompare(IN UINT8 * Position1,IN UINT8 * Position2,OUT UINTN * RelativePosition)561 S3BootScriptCompare (
562 IN UINT8 *Position1,
563 IN UINT8 *Position2,
564 OUT UINTN *RelativePosition
565 )
566 {
567 return RETURN_SUCCESS;
568 }
569