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d042c6e8 | 1 | /** @file\r |
dccfb097 | 2 | Performance library instance used in DXE phase to dump both PEI/DXE and SMM performance data.\r |
d042c6e8 | 3 | \r |
dccfb097 | 4 | This library instance allows a DXE driver or UEFI application to dump both PEI/DXE and SMM performance data.\r |
f0da4d7d SZ |
5 | StartPerformanceMeasurement(), EndPerformanceMeasurement(), StartPerformanceMeasurementEx()\r |
6 | and EndPerformanceMeasurementEx() are not implemented.\r | |
d042c6e8 | 7 | \r |
7a9395cd | 8 | Copyright (c) 2011 - 2016, Intel Corporation. All rights reserved.<BR>\r |
d042c6e8 | 9 | This program and the accompanying materials\r |
10 | are licensed and made available under the terms and conditions of the BSD License\r | |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
17 | **/\r | |
18 | \r | |
19 | \r | |
20 | #include <PiDxe.h>\r | |
21 | \r | |
22 | #include <Guid/Performance.h>\r | |
23 | \r | |
24 | #include <Library/PerformanceLib.h>\r | |
25 | #include <Library/DebugLib.h>\r | |
26 | #include <Library/UefiBootServicesTableLib.h>\r | |
27 | #include <Library/UefiRuntimeServicesTableLib.h>\r | |
28 | #include <Library/PcdLib.h>\r | |
29 | #include <Library/BaseMemoryLib.h>\r | |
30 | #include <Library/BaseLib.h>\r | |
31 | #include <Library/MemoryAllocationLib.h>\r | |
32 | \r | |
33 | #include <Protocol/SmmCommunication.h>\r | |
34 | \r | |
de2459d6 LG |
35 | #include <Guid/PiSmmCommunicationRegionTable.h>\r |
36 | #include <Library/UefiLib.h>\r | |
37 | \r | |
d042c6e8 | 38 | #define SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE (OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data) + sizeof (SMM_PERF_COMMUNICATE))\r |
dccfb097 | 39 | \r |
d042c6e8 | 40 | EFI_SMM_COMMUNICATION_PROTOCOL *mSmmCommunication = NULL;\r |
de2459d6 | 41 | UINT8 *mSmmPerformanceBuffer;\r |
d042c6e8 | 42 | GAUGE_DATA_ENTRY *mGaugeData = NULL;\r |
43 | UINTN mGaugeNumberOfEntries = 0;\r | |
f0da4d7d SZ |
44 | GAUGE_DATA_ENTRY_EX *mGaugeDataEx = NULL;\r |
45 | UINTN mGaugeNumberOfEntriesEx = 0;\r | |
d042c6e8 | 46 | \r |
11948471 SZ |
47 | BOOLEAN mNoSmmPerfHandler = FALSE;\r |
48 | BOOLEAN mNoSmmPerfExHandler = FALSE;\r | |
49 | \r | |
dccfb097 SZ |
50 | //\r |
51 | // The cached Performance Protocol and PerformanceEx Protocol interface.\r | |
52 | //\r | |
53 | PERFORMANCE_PROTOCOL *mPerformance = NULL;\r | |
54 | PERFORMANCE_EX_PROTOCOL *mPerformanceEx = NULL;\r | |
55 | \r | |
d042c6e8 | 56 | /**\r |
f0da4d7d | 57 | The function caches the pointer to SMM Communication protocol.\r |
d042c6e8 | 58 | \r |
f0da4d7d | 59 | The function locates SMM Communication protocol from protocol database.\r |
d042c6e8 | 60 | \r |
f0da4d7d SZ |
61 | @retval EFI_SUCCESS SMM Communication protocol is successfully located.\r |
62 | @retval Other SMM Communication protocol is not located to log performance.\r | |
d042c6e8 | 63 | \r |
64 | **/\r | |
65 | EFI_STATUS\r | |
66 | GetCommunicationProtocol (\r | |
67 | VOID\r | |
68 | )\r | |
69 | {\r | |
70 | EFI_STATUS Status;\r | |
71 | EFI_SMM_COMMUNICATION_PROTOCOL *Communication;\r | |
72 | \r | |
73 | if (mSmmCommunication != NULL) {\r | |
74 | return EFI_SUCCESS;\r | |
75 | }\r | |
76 | \r | |
77 | Status = gBS->LocateProtocol (&gEfiSmmCommunicationProtocolGuid, NULL, (VOID **) &Communication);\r | |
78 | if (!EFI_ERROR (Status)) {\r | |
79 | ASSERT (Communication != NULL);\r | |
80 | //\r | |
81 | // Cache SMM Communication protocol.\r | |
82 | //\r | |
83 | mSmmCommunication = Communication;\r | |
84 | }\r | |
85 | \r | |
86 | return Status;\r | |
87 | }\r | |
88 | \r | |
dccfb097 SZ |
89 | /**\r |
90 | The function caches the pointers to PerformanceEx protocol and Performance Protocol.\r | |
91 | \r | |
92 | The function locates PerformanceEx protocol and Performance Protocol from protocol database.\r | |
93 | \r | |
94 | @retval EFI_SUCCESS PerformanceEx protocol or Performance Protocol is successfully located.\r | |
95 | @retval EFI_NOT_FOUND Both PerformanceEx protocol and Performance Protocol are not located to log performance.\r | |
96 | \r | |
97 | **/\r | |
98 | EFI_STATUS\r | |
99 | GetPerformanceProtocol (\r | |
100 | VOID\r | |
101 | )\r | |
102 | {\r | |
103 | EFI_STATUS Status;\r | |
104 | PERFORMANCE_PROTOCOL *Performance;\r | |
105 | PERFORMANCE_EX_PROTOCOL *PerformanceEx;\r | |
106 | \r | |
107 | if (mPerformanceEx != NULL || mPerformance != NULL) {\r | |
108 | return EFI_SUCCESS;\r | |
109 | }\r | |
110 | \r | |
111 | Status = gBS->LocateProtocol (&gPerformanceExProtocolGuid, NULL, (VOID **) &PerformanceEx);\r | |
112 | if (!EFI_ERROR (Status)) {\r | |
113 | ASSERT (PerformanceEx != NULL);\r | |
114 | //\r | |
115 | // Cache PerformanceEx Protocol.\r | |
116 | //\r | |
117 | mPerformanceEx = PerformanceEx;\r | |
118 | return EFI_SUCCESS;\r | |
119 | }\r | |
120 | \r | |
121 | Status = gBS->LocateProtocol (&gPerformanceProtocolGuid, NULL, (VOID **) &Performance);\r | |
122 | if (!EFI_ERROR (Status)) {\r | |
123 | ASSERT (Performance != NULL);\r | |
124 | //\r | |
125 | // Cache performance protocol.\r | |
126 | //\r | |
127 | mPerformance = Performance;\r | |
128 | return EFI_SUCCESS;\r | |
129 | }\r | |
130 | \r | |
131 | return EFI_NOT_FOUND;\r | |
132 | }\r | |
133 | \r | |
f0da4d7d SZ |
134 | /**\r |
135 | Creates a record for the beginning of a performance measurement.\r | |
136 | \r | |
137 | Creates a record that contains the Handle, Token, Module and Identifier.\r | |
138 | If TimeStamp is not zero, then TimeStamp is added to the record as the start time.\r | |
139 | If TimeStamp is zero, then this function reads the current time stamp\r | |
140 | and adds that time stamp value to the record as the start time.\r | |
141 | \r | |
142 | @param Handle Pointer to environment specific context used\r | |
143 | to identify the component being measured.\r | |
144 | @param Token Pointer to a Null-terminated ASCII string\r | |
145 | that identifies the component being measured.\r | |
146 | @param Module Pointer to a Null-terminated ASCII string\r | |
147 | that identifies the module being measured.\r | |
148 | @param TimeStamp 64-bit time stamp.\r | |
149 | @param Identifier 32-bit identifier. If the value is 0, the created record\r | |
150 | is same as the one created by StartPerformanceMeasurement.\r | |
151 | \r | |
152 | @retval RETURN_SUCCESS The start of the measurement was recorded.\r | |
153 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
154 | \r | |
155 | **/\r | |
156 | RETURN_STATUS\r | |
157 | EFIAPI\r | |
158 | StartPerformanceMeasurementEx (\r | |
159 | IN CONST VOID *Handle, OPTIONAL\r | |
160 | IN CONST CHAR8 *Token, OPTIONAL\r | |
161 | IN CONST CHAR8 *Module, OPTIONAL\r | |
162 | IN UINT64 TimeStamp,\r | |
163 | IN UINT32 Identifier\r | |
164 | )\r | |
165 | {\r | |
166 | return RETURN_SUCCESS;\r | |
167 | }\r | |
168 | \r | |
169 | /**\r | |
170 | Fills in the end time of a performance measurement.\r | |
171 | \r | |
7a9395cd | 172 | Looks up the record that matches Handle, Token and Module.\r |
f0da4d7d SZ |
173 | If the record can not be found then return RETURN_NOT_FOUND.\r |
174 | If the record is found and TimeStamp is not zero,\r | |
175 | then TimeStamp is added to the record as the end time.\r | |
176 | If the record is found and TimeStamp is zero, then this function reads\r | |
177 | the current time stamp and adds that time stamp value to the record as the end time.\r | |
178 | \r | |
179 | @param Handle Pointer to environment specific context used\r | |
180 | to identify the component being measured.\r | |
181 | @param Token Pointer to a Null-terminated ASCII string\r | |
182 | that identifies the component being measured.\r | |
183 | @param Module Pointer to a Null-terminated ASCII string\r | |
184 | that identifies the module being measured.\r | |
185 | @param TimeStamp 64-bit time stamp.\r | |
186 | @param Identifier 32-bit identifier. If the value is 0, the found record\r | |
187 | is same as the one found by EndPerformanceMeasurement.\r | |
188 | \r | |
189 | @retval RETURN_SUCCESS The end of the measurement was recorded.\r | |
190 | @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r | |
191 | \r | |
192 | **/\r | |
193 | RETURN_STATUS\r | |
194 | EFIAPI\r | |
195 | EndPerformanceMeasurementEx (\r | |
196 | IN CONST VOID *Handle, OPTIONAL\r | |
197 | IN CONST CHAR8 *Token, OPTIONAL\r | |
198 | IN CONST CHAR8 *Module, OPTIONAL\r | |
199 | IN UINT64 TimeStamp,\r | |
200 | IN UINT32 Identifier\r | |
201 | )\r | |
202 | {\r | |
203 | return RETURN_SUCCESS;\r | |
204 | }\r | |
205 | \r | |
d042c6e8 | 206 | /**\r |
207 | Creates a record for the beginning of a performance measurement.\r | |
208 | \r | |
209 | Creates a record that contains the Handle, Token, and Module.\r | |
210 | If TimeStamp is not zero, then TimeStamp is added to the record as the start time.\r | |
211 | If TimeStamp is zero, then this function reads the current time stamp\r | |
212 | and adds that time stamp value to the record as the start time.\r | |
213 | \r | |
214 | @param Handle Pointer to environment specific context used\r | |
215 | to identify the component being measured.\r | |
216 | @param Token Pointer to a Null-terminated ASCII string\r | |
217 | that identifies the component being measured.\r | |
218 | @param Module Pointer to a Null-terminated ASCII string\r | |
219 | that identifies the module being measured.\r | |
220 | @param TimeStamp 64-bit time stamp.\r | |
221 | \r | |
222 | @retval RETURN_SUCCESS The start of the measurement was recorded.\r | |
223 | @retval RETURN_OUT_OF_RESOURCES There are not enough resources to record the measurement.\r | |
224 | \r | |
225 | **/\r | |
226 | RETURN_STATUS\r | |
227 | EFIAPI\r | |
228 | StartPerformanceMeasurement (\r | |
229 | IN CONST VOID *Handle, OPTIONAL\r | |
230 | IN CONST CHAR8 *Token, OPTIONAL\r | |
231 | IN CONST CHAR8 *Module, OPTIONAL\r | |
232 | IN UINT64 TimeStamp\r | |
233 | )\r | |
234 | {\r | |
f0da4d7d | 235 | return RETURN_SUCCESS;\r |
d042c6e8 | 236 | }\r |
237 | \r | |
238 | /**\r | |
239 | Fills in the end time of a performance measurement.\r | |
240 | \r | |
241 | Looks up the record that matches Handle, Token, and Module.\r | |
242 | If the record can not be found then return RETURN_NOT_FOUND.\r | |
243 | If the record is found and TimeStamp is not zero,\r | |
244 | then TimeStamp is added to the record as the end time.\r | |
245 | If the record is found and TimeStamp is zero, then this function reads\r | |
246 | the current time stamp and adds that time stamp value to the record as the end time.\r | |
d042c6e8 | 247 | \r |
248 | @param Handle Pointer to environment specific context used\r | |
249 | to identify the component being measured.\r | |
250 | @param Token Pointer to a Null-terminated ASCII string\r | |
251 | that identifies the component being measured.\r | |
252 | @param Module Pointer to a Null-terminated ASCII string\r | |
253 | that identifies the module being measured.\r | |
254 | @param TimeStamp 64-bit time stamp.\r | |
255 | \r | |
256 | @retval RETURN_SUCCESS The end of the measurement was recorded.\r | |
257 | @retval RETURN_NOT_FOUND The specified measurement record could not be found.\r | |
258 | \r | |
259 | **/\r | |
260 | RETURN_STATUS\r | |
261 | EFIAPI\r | |
262 | EndPerformanceMeasurement (\r | |
263 | IN CONST VOID *Handle, OPTIONAL\r | |
264 | IN CONST CHAR8 *Token, OPTIONAL\r | |
265 | IN CONST CHAR8 *Module, OPTIONAL\r | |
266 | IN UINT64 TimeStamp\r | |
267 | )\r | |
268 | {\r | |
f0da4d7d | 269 | return RETURN_SUCCESS;\r |
d042c6e8 | 270 | }\r |
271 | \r | |
dccfb097 SZ |
272 | /**\r |
273 | Attempts to retrieve a performance measurement log entry from the performance measurement log.\r | |
274 | It can also retrieve the log created by StartPerformanceMeasurement and EndPerformanceMeasurement,\r | |
275 | and then assign the Identifier with 0.\r | |
276 | \r | |
277 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r | |
278 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
279 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
280 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
281 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
282 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
283 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
284 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
285 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
286 | the log entry is returned in Handle, Token, Module, StartTimeStamp, EndTimeStamp and Identifier.\r | |
287 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r | |
288 | If Handle is NULL, then ASSERT().\r | |
289 | If Token is NULL, then ASSERT().\r | |
290 | If Module is NULL, then ASSERT().\r | |
291 | If StartTimeStamp is NULL, then ASSERT().\r | |
292 | If EndTimeStamp is NULL, then ASSERT().\r | |
293 | If Identifier is NULL, then ASSERT().\r | |
294 | \r | |
295 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
296 | 0, then the first performance measurement log entry is retrieved.\r | |
297 | On exit, the key of the next performance log entry.\r | |
298 | @param Handle Pointer to environment specific context used to identify the component\r | |
299 | being measured.\r | |
300 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
301 | being measured.\r | |
302 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
303 | being measured.\r | |
304 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
305 | was started.\r | |
306 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
307 | was ended.\r | |
308 | @param Identifier Pointer to the 32-bit identifier that was recorded.\r | |
309 | \r | |
310 | @return The key for the next performance log entry (in general case).\r | |
311 | \r | |
312 | **/\r | |
313 | UINTN\r | |
314 | EFIAPI\r | |
315 | GetByPerformanceProtocol (\r | |
316 | IN UINTN LogEntryKey, \r | |
317 | OUT CONST VOID **Handle,\r | |
318 | OUT CONST CHAR8 **Token,\r | |
319 | OUT CONST CHAR8 **Module,\r | |
320 | OUT UINT64 *StartTimeStamp,\r | |
321 | OUT UINT64 *EndTimeStamp,\r | |
322 | OUT UINT32 *Identifier\r | |
323 | )\r | |
324 | {\r | |
325 | EFI_STATUS Status;\r | |
326 | GAUGE_DATA_ENTRY_EX *GaugeData;\r | |
327 | \r | |
328 | Status = GetPerformanceProtocol ();\r | |
329 | if (EFI_ERROR (Status)) {\r | |
330 | return 0;\r | |
331 | }\r | |
332 | \r | |
333 | if (mPerformanceEx != NULL) {\r | |
334 | Status = mPerformanceEx->GetGaugeEx (LogEntryKey++, &GaugeData);\r | |
335 | } else if (mPerformance != NULL) {\r | |
336 | Status = mPerformance->GetGauge (LogEntryKey++, (GAUGE_DATA_ENTRY **) &GaugeData);\r | |
337 | } else {\r | |
338 | ASSERT (FALSE);\r | |
339 | return 0;\r | |
340 | }\r | |
341 | \r | |
342 | //\r | |
343 | // Make sure that LogEntryKey is a valid log entry key,\r | |
344 | //\r | |
345 | ASSERT (Status != EFI_INVALID_PARAMETER);\r | |
346 | \r | |
347 | if (EFI_ERROR (Status)) {\r | |
348 | //\r | |
349 | // The LogEntryKey is the last entry (equals to the total entry number).\r | |
350 | //\r | |
351 | return 0;\r | |
352 | }\r | |
353 | \r | |
354 | ASSERT (GaugeData != NULL);\r | |
355 | \r | |
356 | *Handle = (VOID *) (UINTN) GaugeData->Handle;\r | |
357 | *Token = GaugeData->Token;\r | |
358 | *Module = GaugeData->Module;\r | |
359 | *StartTimeStamp = GaugeData->StartTimeStamp;\r | |
360 | *EndTimeStamp = GaugeData->EndTimeStamp;\r | |
361 | if (mPerformanceEx != NULL) {\r | |
362 | *Identifier = GaugeData->Identifier;\r | |
363 | } else {\r | |
364 | *Identifier = 0;\r | |
365 | }\r | |
366 | \r | |
367 | return LogEntryKey;\r | |
368 | }\r | |
369 | \r | |
370 | \r | |
d042c6e8 | 371 | /**\r |
372 | Retrieves all previous logged performance measurement.\r | |
373 | Function will use SMM communicate protocol to get all previous SMM performance measurement data.\r | |
374 | If success, data buffer will be returned. If fail function will return NULL.\r | |
375 | \r | |
dccfb097 SZ |
376 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r |
377 | 0, then the first performance measurement log entry is retrieved.\r | |
378 | On exit, the key of the next performance log entry.\r | |
379 | \r | |
d042c6e8 | 380 | @retval !NULL Get all gauge data success.\r |
11948471 | 381 | @retval NULL Get all gauge data failed.\r |
d042c6e8 | 382 | **/\r |
f0da4d7d | 383 | GAUGE_DATA_ENTRY *\r |
d042c6e8 | 384 | EFIAPI\r |
dccfb097 SZ |
385 | GetAllSmmGaugeData (\r |
386 | IN UINTN LogEntryKey\r | |
387 | )\r | |
d042c6e8 | 388 | {\r |
de2459d6 LG |
389 | EFI_STATUS Status;\r |
390 | EFI_SMM_COMMUNICATE_HEADER *SmmCommBufferHeader;\r | |
391 | SMM_PERF_COMMUNICATE *SmmPerfCommData;\r | |
392 | UINTN CommSize;\r | |
393 | UINTN DataSize;\r | |
394 | EDKII_PI_SMM_COMMUNICATION_REGION_TABLE *PiSmmCommunicationRegionTable;\r | |
395 | UINT32 Index;\r | |
396 | EFI_MEMORY_DESCRIPTOR *Entry;\r | |
397 | UINT8 *Buffer;\r | |
398 | UINTN Size;\r | |
399 | UINTN NumberOfEntries;\r | |
400 | UINTN EntriesGot;\r | |
d042c6e8 | 401 | \r |
11948471 SZ |
402 | if (mNoSmmPerfHandler) {\r |
403 | //\r | |
404 | // Not try to get the SMM gauge data again\r | |
405 | // if no SMM Performance handler found.\r | |
406 | //\r | |
407 | return NULL;\r | |
408 | }\r | |
409 | \r | |
dccfb097 SZ |
410 | if (LogEntryKey != 0) {\r |
411 | if (mGaugeData != NULL) {\r | |
412 | return mGaugeData;\r | |
413 | }\r | |
414 | } else {\r | |
415 | //\r | |
11948471 | 416 | // Reget the SMM gauge data at the first entry get.\r |
dccfb097 SZ |
417 | //\r |
418 | if (mGaugeData != NULL) {\r | |
419 | FreePool (mGaugeData);\r | |
420 | mGaugeData = NULL;\r | |
421 | mGaugeNumberOfEntries = 0;\r | |
422 | }\r | |
d042c6e8 | 423 | }\r |
424 | \r | |
425 | Status = GetCommunicationProtocol ();\r | |
426 | if (EFI_ERROR (Status)) {\r | |
427 | return NULL;\r | |
428 | }\r | |
429 | \r | |
de2459d6 LG |
430 | Status = EfiGetSystemConfigurationTable (\r |
431 | &gEdkiiPiSmmCommunicationRegionTableGuid,\r | |
432 | (VOID **) &PiSmmCommunicationRegionTable\r | |
433 | );\r | |
434 | if (EFI_ERROR (Status)) {\r | |
435 | return NULL;\r | |
436 | }\r | |
437 | ASSERT (PiSmmCommunicationRegionTable != NULL);\r | |
438 | Entry = (EFI_MEMORY_DESCRIPTOR *) (PiSmmCommunicationRegionTable + 1);\r | |
439 | Size = 0;\r | |
440 | for (Index = 0; Index < PiSmmCommunicationRegionTable->NumberOfEntries; Index++) {\r | |
441 | if (Entry->Type == EfiConventionalMemory) {\r | |
442 | Size = EFI_PAGES_TO_SIZE ((UINTN) Entry->NumberOfPages);\r | |
443 | if (Size >= (SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE + sizeof (GAUGE_DATA_ENTRY))) {\r | |
444 | break;\r | |
445 | }\r | |
446 | }\r | |
447 | Entry = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) Entry + PiSmmCommunicationRegionTable->DescriptorSize);\r | |
448 | }\r | |
449 | ASSERT (Index < PiSmmCommunicationRegionTable->NumberOfEntries);\r | |
450 | mSmmPerformanceBuffer = (UINT8 *) (UINTN) Entry->PhysicalStart;\r | |
451 | \r | |
d042c6e8 | 452 | //\r |
453 | // Initialize communicate buffer \r | |
454 | //\r | |
f0da4d7d SZ |
455 | SmmCommBufferHeader = (EFI_SMM_COMMUNICATE_HEADER *)mSmmPerformanceBuffer;\r |
456 | SmmPerfCommData = (SMM_PERF_COMMUNICATE *)SmmCommBufferHeader->Data;\r | |
d042c6e8 | 457 | ZeroMem((UINT8*)SmmPerfCommData, sizeof(SMM_PERF_COMMUNICATE));\r |
458 | \r | |
459 | CopyGuid (&SmmCommBufferHeader->HeaderGuid, &gSmmPerformanceProtocolGuid);\r | |
460 | SmmCommBufferHeader->MessageLength = sizeof(SMM_PERF_COMMUNICATE);\r | |
f0da4d7d | 461 | CommSize = SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE;\r |
d042c6e8 | 462 | \r |
463 | //\r | |
11948471 | 464 | // Get total number of SMM gauge entries\r |
d042c6e8 | 465 | //\r |
466 | SmmPerfCommData->Function = SMM_PERF_FUNCTION_GET_GAUGE_ENTRY_NUMBER;\r | |
467 | Status = mSmmCommunication->Communicate (mSmmCommunication, mSmmPerformanceBuffer, &CommSize);\r | |
11948471 SZ |
468 | if (Status == EFI_NOT_FOUND) {\r |
469 | mNoSmmPerfHandler = TRUE;\r | |
470 | }\r | |
f0da4d7d | 471 | if (EFI_ERROR (Status) || EFI_ERROR (SmmPerfCommData->ReturnStatus) || SmmPerfCommData->NumberOfEntries == 0) {\r |
d042c6e8 | 472 | return NULL;\r |
473 | }\r | |
474 | \r | |
475 | mGaugeNumberOfEntries = SmmPerfCommData->NumberOfEntries;\r | |
de2459d6 LG |
476 | \r |
477 | Buffer = mSmmPerformanceBuffer + SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE;\r | |
478 | NumberOfEntries = (Size - SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE) / sizeof (GAUGE_DATA_ENTRY);\r | |
d042c6e8 | 479 | DataSize = mGaugeNumberOfEntries * sizeof(GAUGE_DATA_ENTRY);\r |
480 | mGaugeData = AllocateZeroPool(DataSize);\r | |
f0da4d7d | 481 | ASSERT (mGaugeData != NULL);\r |
de2459d6 | 482 | \r |
d042c6e8 | 483 | //\r |
484 | // Get all SMM gauge data\r | |
485 | // \r | |
486 | SmmPerfCommData->Function = SMM_PERF_FUNCTION_GET_GAUGE_DATA;\r | |
de2459d6 LG |
487 | SmmPerfCommData->GaugeData = (GAUGE_DATA_ENTRY *) Buffer;\r |
488 | EntriesGot = 0;\r | |
489 | do {\r | |
490 | SmmPerfCommData->LogEntryKey = EntriesGot;\r | |
491 | if ((mGaugeNumberOfEntries - EntriesGot) >= NumberOfEntries) {\r | |
492 | SmmPerfCommData->NumberOfEntries = NumberOfEntries;\r | |
493 | } else {\r | |
494 | SmmPerfCommData->NumberOfEntries = mGaugeNumberOfEntries - EntriesGot;\r | |
495 | }\r | |
496 | Status = mSmmCommunication->Communicate (mSmmCommunication, mSmmPerformanceBuffer, &CommSize);\r | |
497 | if (EFI_ERROR (Status) || EFI_ERROR (SmmPerfCommData->ReturnStatus)) {\r | |
498 | FreePool (mGaugeData);\r | |
499 | mGaugeData = NULL;\r | |
500 | mGaugeNumberOfEntries = 0;\r | |
501 | return NULL;\r | |
502 | } else {\r | |
503 | CopyMem (&mGaugeData[EntriesGot], Buffer, SmmPerfCommData->NumberOfEntries * sizeof (GAUGE_DATA_ENTRY));\r | |
504 | }\r | |
505 | EntriesGot += SmmPerfCommData->NumberOfEntries;\r | |
506 | } while (EntriesGot < mGaugeNumberOfEntries);\r | |
d042c6e8 | 507 | \r |
f0da4d7d | 508 | return mGaugeData;\r |
d042c6e8 | 509 | }\r |
510 | \r | |
511 | /**\r | |
f0da4d7d SZ |
512 | Retrieves all previous logged performance measurement.\r |
513 | Function will use SMM communicate protocol to get all previous SMM performance measurement data.\r | |
514 | If success, data buffer will be returned. If fail function will return NULL.\r | |
d042c6e8 | 515 | \r |
dccfb097 SZ |
516 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r |
517 | 0, then the first performance measurement log entry is retrieved.\r | |
518 | On exit, the key of the next performance log entry.\r | |
519 | \r | |
f0da4d7d | 520 | @retval !NULL Get all gauge data success.\r |
11948471 | 521 | @retval NULL Get all gauge data failed.\r |
d042c6e8 | 522 | **/\r |
f0da4d7d | 523 | GAUGE_DATA_ENTRY_EX *\r |
d042c6e8 | 524 | EFIAPI\r |
dccfb097 SZ |
525 | GetAllSmmGaugeDataEx (\r |
526 | IN UINTN LogEntryKey\r | |
527 | )\r | |
d042c6e8 | 528 | {\r |
de2459d6 LG |
529 | EFI_STATUS Status;\r |
530 | EFI_SMM_COMMUNICATE_HEADER *SmmCommBufferHeader;\r | |
531 | SMM_PERF_COMMUNICATE_EX *SmmPerfCommData;\r | |
532 | UINTN CommSize;\r | |
533 | UINTN DataSize;\r | |
534 | EDKII_PI_SMM_COMMUNICATION_REGION_TABLE *PiSmmCommunicationRegionTable;\r | |
535 | UINT32 Index;\r | |
536 | EFI_MEMORY_DESCRIPTOR *Entry;\r | |
537 | UINT8 *Buffer;\r | |
538 | UINTN Size;\r | |
539 | UINTN NumberOfEntries;\r | |
540 | UINTN EntriesGot;\r | |
f0da4d7d | 541 | \r |
11948471 SZ |
542 | if (mNoSmmPerfExHandler) {\r |
543 | //\r | |
544 | // Not try to get the SMM gauge data again\r | |
545 | // if no SMM PerformanceEx handler found.\r | |
546 | //\r | |
547 | return NULL;\r | |
548 | }\r | |
549 | \r | |
dccfb097 SZ |
550 | if (LogEntryKey != 0) {\r |
551 | if (mGaugeDataEx != NULL) {\r | |
552 | return mGaugeDataEx;\r | |
553 | }\r | |
554 | } else {\r | |
555 | //\r | |
11948471 | 556 | // Reget the SMM gauge data at the first entry get.\r |
dccfb097 SZ |
557 | //\r |
558 | if (mGaugeDataEx != NULL) {\r | |
559 | FreePool (mGaugeDataEx);\r | |
560 | mGaugeDataEx = NULL;\r | |
561 | mGaugeNumberOfEntriesEx = 0;\r | |
562 | }\r | |
d042c6e8 | 563 | }\r |
f0da4d7d SZ |
564 | \r |
565 | Status = GetCommunicationProtocol ();\r | |
566 | if (EFI_ERROR (Status)) {\r | |
567 | return NULL;\r | |
d042c6e8 | 568 | }\r |
569 | \r | |
de2459d6 LG |
570 | Status = EfiGetSystemConfigurationTable (\r |
571 | &gEdkiiPiSmmCommunicationRegionTableGuid,\r | |
572 | (VOID **) &PiSmmCommunicationRegionTable\r | |
573 | );\r | |
574 | if (EFI_ERROR (Status)) {\r | |
575 | return NULL;\r | |
576 | }\r | |
577 | ASSERT (PiSmmCommunicationRegionTable != NULL);\r | |
578 | Entry = (EFI_MEMORY_DESCRIPTOR *) (PiSmmCommunicationRegionTable + 1);\r | |
579 | Size = 0;\r | |
580 | for (Index = 0; Index < PiSmmCommunicationRegionTable->NumberOfEntries; Index++) {\r | |
581 | if (Entry->Type == EfiConventionalMemory) {\r | |
582 | Size = EFI_PAGES_TO_SIZE ((UINTN) Entry->NumberOfPages);\r | |
583 | if (Size >= (SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE + sizeof (GAUGE_DATA_ENTRY_EX))) {\r | |
584 | break;\r | |
585 | }\r | |
586 | }\r | |
587 | Entry = (EFI_MEMORY_DESCRIPTOR *) ((UINT8 *) Entry + PiSmmCommunicationRegionTable->DescriptorSize);\r | |
588 | }\r | |
589 | ASSERT (Index < PiSmmCommunicationRegionTable->NumberOfEntries);\r | |
590 | mSmmPerformanceBuffer = (UINT8 *) (UINTN) Entry->PhysicalStart;\r | |
f0da4d7d SZ |
591 | //\r |
592 | // Initialize communicate buffer \r | |
593 | //\r | |
594 | SmmCommBufferHeader = (EFI_SMM_COMMUNICATE_HEADER *)mSmmPerformanceBuffer;\r | |
595 | SmmPerfCommData = (SMM_PERF_COMMUNICATE_EX *)SmmCommBufferHeader->Data;\r | |
596 | ZeroMem((UINT8*)SmmPerfCommData, sizeof(SMM_PERF_COMMUNICATE_EX));\r | |
597 | \r | |
598 | CopyGuid (&SmmCommBufferHeader->HeaderGuid, &gSmmPerformanceExProtocolGuid);\r | |
599 | SmmCommBufferHeader->MessageLength = sizeof(SMM_PERF_COMMUNICATE_EX);\r | |
600 | CommSize = SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE;\r | |
601 | \r | |
602 | //\r | |
11948471 | 603 | // Get total number of SMM gauge entries\r |
f0da4d7d SZ |
604 | //\r |
605 | SmmPerfCommData->Function = SMM_PERF_FUNCTION_GET_GAUGE_ENTRY_NUMBER;\r | |
606 | Status = mSmmCommunication->Communicate (mSmmCommunication, mSmmPerformanceBuffer, &CommSize);\r | |
11948471 SZ |
607 | if (Status == EFI_NOT_FOUND) {\r |
608 | mNoSmmPerfExHandler = TRUE;\r | |
609 | }\r | |
f0da4d7d SZ |
610 | if (EFI_ERROR (Status) || EFI_ERROR (SmmPerfCommData->ReturnStatus) || SmmPerfCommData->NumberOfEntries == 0) {\r |
611 | return NULL;\r | |
d042c6e8 | 612 | }\r |
d042c6e8 | 613 | \r |
f0da4d7d | 614 | mGaugeNumberOfEntriesEx = SmmPerfCommData->NumberOfEntries;\r |
de2459d6 LG |
615 | \r |
616 | Buffer = mSmmPerformanceBuffer + SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE;\r | |
617 | NumberOfEntries = (Size - SMM_PERFORMANCE_COMMUNICATION_BUFFER_SIZE) / sizeof (GAUGE_DATA_ENTRY_EX);\r | |
f0da4d7d SZ |
618 | DataSize = mGaugeNumberOfEntriesEx * sizeof(GAUGE_DATA_ENTRY_EX);\r |
619 | mGaugeDataEx = AllocateZeroPool(DataSize);\r | |
620 | ASSERT (mGaugeDataEx != NULL);\r | |
de2459d6 | 621 | \r |
f0da4d7d SZ |
622 | //\r |
623 | // Get all SMM gauge data\r | |
624 | // \r | |
625 | SmmPerfCommData->Function = SMM_PERF_FUNCTION_GET_GAUGE_DATA;\r | |
de2459d6 LG |
626 | SmmPerfCommData->GaugeDataEx = (GAUGE_DATA_ENTRY_EX *) Buffer;\r |
627 | EntriesGot = 0;\r | |
628 | do {\r | |
629 | SmmPerfCommData->LogEntryKey = EntriesGot;\r | |
630 | if ((mGaugeNumberOfEntriesEx - EntriesGot) >= NumberOfEntries) {\r | |
631 | SmmPerfCommData->NumberOfEntries = NumberOfEntries;\r | |
632 | } else {\r | |
633 | SmmPerfCommData->NumberOfEntries = mGaugeNumberOfEntriesEx - EntriesGot;\r | |
634 | }\r | |
635 | Status = mSmmCommunication->Communicate (mSmmCommunication, mSmmPerformanceBuffer, &CommSize);\r | |
636 | if (EFI_ERROR (Status) || EFI_ERROR (SmmPerfCommData->ReturnStatus)) {\r | |
637 | FreePool (mGaugeDataEx);\r | |
638 | mGaugeDataEx = NULL;\r | |
639 | mGaugeNumberOfEntriesEx = 0;\r | |
640 | return NULL;\r | |
641 | } else {\r | |
642 | CopyMem (&mGaugeDataEx[EntriesGot], Buffer, SmmPerfCommData->NumberOfEntries * sizeof (GAUGE_DATA_ENTRY_EX));\r | |
643 | }\r | |
644 | EntriesGot += SmmPerfCommData->NumberOfEntries;\r | |
645 | } while (EntriesGot < mGaugeNumberOfEntriesEx);\r | |
646 | \r | |
f0da4d7d | 647 | return mGaugeDataEx;\r |
d042c6e8 | 648 | }\r |
649 | \r | |
650 | /**\r | |
651 | Attempts to retrieve a performance measurement log entry from the performance measurement log.\r | |
f0da4d7d SZ |
652 | It can also retrieve the log created by StartPerformanceMeasurement and EndPerformanceMeasurement,\r |
653 | and then assign the Identifier with 0.\r | |
d042c6e8 | 654 | \r |
655 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r | |
656 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
657 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
658 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
659 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
660 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
661 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
662 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
663 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
f0da4d7d | 664 | the log entry is returned in Handle, Token, Module, StartTimeStamp, EndTimeStamp and Identifier.\r |
d042c6e8 | 665 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r |
666 | If Handle is NULL, then ASSERT().\r | |
667 | If Token is NULL, then ASSERT().\r | |
668 | If Module is NULL, then ASSERT().\r | |
669 | If StartTimeStamp is NULL, then ASSERT().\r | |
670 | If EndTimeStamp is NULL, then ASSERT().\r | |
f0da4d7d | 671 | If Identifier is NULL, then ASSERT().\r |
d042c6e8 | 672 | \r |
673 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
674 | 0, then the first performance measurement log entry is retrieved.\r | |
675 | On exit, the key of the next performance log entry.\r | |
676 | @param Handle Pointer to environment specific context used to identify the component\r | |
677 | being measured.\r | |
678 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
679 | being measured.\r | |
680 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
681 | being measured.\r | |
682 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
683 | was started.\r | |
684 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
685 | was ended.\r | |
f0da4d7d | 686 | @param Identifier Pointer to the 32-bit identifier that was recorded.\r |
d042c6e8 | 687 | \r |
688 | @return The key for the next performance log entry (in general case).\r | |
689 | \r | |
690 | **/\r | |
691 | UINTN\r | |
692 | EFIAPI\r | |
f0da4d7d SZ |
693 | GetPerformanceMeasurementEx (\r |
694 | IN UINTN LogEntryKey, \r | |
d042c6e8 | 695 | OUT CONST VOID **Handle,\r |
696 | OUT CONST CHAR8 **Token,\r | |
697 | OUT CONST CHAR8 **Module,\r | |
698 | OUT UINT64 *StartTimeStamp,\r | |
f0da4d7d SZ |
699 | OUT UINT64 *EndTimeStamp,\r |
700 | OUT UINT32 *Identifier\r | |
d042c6e8 | 701 | )\r |
702 | {\r | |
f0da4d7d | 703 | GAUGE_DATA_ENTRY_EX *GaugeData;\r |
d042c6e8 | 704 | \r |
705 | GaugeData = NULL;\r | |
706 | \r | |
707 | ASSERT (Handle != NULL);\r | |
708 | ASSERT (Token != NULL);\r | |
709 | ASSERT (Module != NULL);\r | |
710 | ASSERT (StartTimeStamp != NULL);\r | |
711 | ASSERT (EndTimeStamp != NULL);\r | |
f0da4d7d | 712 | ASSERT (Identifier != NULL);\r |
d042c6e8 | 713 | \r |
dccfb097 | 714 | mGaugeDataEx = GetAllSmmGaugeDataEx (LogEntryKey);\r |
f0da4d7d | 715 | if (mGaugeDataEx != NULL) {\r |
dccfb097 SZ |
716 | if (LogEntryKey >= mGaugeNumberOfEntriesEx) {\r |
717 | //\r | |
718 | // Try to get the data by Performance Protocol.\r | |
719 | //\r | |
720 | LogEntryKey = LogEntryKey - mGaugeNumberOfEntriesEx;\r | |
721 | LogEntryKey = GetByPerformanceProtocol (\r | |
722 | LogEntryKey,\r | |
723 | Handle,\r | |
724 | Token,\r | |
725 | Module,\r | |
726 | StartTimeStamp,\r | |
727 | EndTimeStamp,\r | |
728 | Identifier\r | |
729 | );\r | |
730 | if (LogEntryKey == 0) {\r | |
731 | //\r | |
732 | // Last entry.\r | |
733 | //\r | |
734 | return LogEntryKey;\r | |
735 | } else {\r | |
736 | return (LogEntryKey + mGaugeNumberOfEntriesEx);\r | |
737 | }\r | |
f0da4d7d SZ |
738 | }\r |
739 | \r | |
740 | GaugeData = &mGaugeDataEx[LogEntryKey++];\r | |
741 | *Identifier = GaugeData->Identifier;\r | |
742 | } else {\r | |
dccfb097 | 743 | mGaugeData = GetAllSmmGaugeData (LogEntryKey);\r |
f0da4d7d | 744 | if (mGaugeData != NULL) {\r |
dccfb097 SZ |
745 | if (LogEntryKey >= mGaugeNumberOfEntries) {\r |
746 | //\r | |
747 | // Try to get the data by Performance Protocol.\r | |
748 | //\r | |
749 | LogEntryKey = LogEntryKey - mGaugeNumberOfEntries;\r | |
750 | LogEntryKey = GetByPerformanceProtocol (\r | |
751 | LogEntryKey,\r | |
752 | Handle,\r | |
753 | Token,\r | |
754 | Module,\r | |
755 | StartTimeStamp,\r | |
756 | EndTimeStamp,\r | |
757 | Identifier\r | |
758 | );\r | |
759 | if (LogEntryKey == 0) {\r | |
760 | //\r | |
761 | // Last entry.\r | |
762 | //\r | |
763 | return LogEntryKey;\r | |
764 | } else {\r | |
765 | return (LogEntryKey + mGaugeNumberOfEntries);\r | |
766 | }\r | |
f0da4d7d SZ |
767 | }\r |
768 | \r | |
769 | GaugeData = (GAUGE_DATA_ENTRY_EX *) &mGaugeData[LogEntryKey++];\r | |
770 | *Identifier = 0;\r | |
771 | } else {\r | |
11948471 SZ |
772 | return GetByPerformanceProtocol (\r |
773 | LogEntryKey,\r | |
774 | Handle,\r | |
775 | Token,\r | |
776 | Module,\r | |
777 | StartTimeStamp,\r | |
778 | EndTimeStamp,\r | |
779 | Identifier\r | |
780 | );\r | |
f0da4d7d | 781 | }\r |
d042c6e8 | 782 | }\r |
783 | \r | |
d042c6e8 | 784 | *Handle = (VOID *) (UINTN) GaugeData->Handle;\r |
785 | *Token = GaugeData->Token;\r | |
786 | *Module = GaugeData->Module;\r | |
787 | *StartTimeStamp = GaugeData->StartTimeStamp;\r | |
788 | *EndTimeStamp = GaugeData->EndTimeStamp;\r | |
789 | \r | |
790 | return LogEntryKey;\r | |
791 | }\r | |
792 | \r | |
f0da4d7d SZ |
793 | /**\r |
794 | Attempts to retrieve a performance measurement log entry from the performance measurement log.\r | |
795 | It can also retrieve the log created by StartPerformanceMeasurementEx and EndPerformanceMeasurementEx,\r | |
796 | and then eliminate the Identifier.\r | |
797 | \r | |
798 | Attempts to retrieve the performance log entry specified by LogEntryKey. If LogEntryKey is\r | |
799 | zero on entry, then an attempt is made to retrieve the first entry from the performance log,\r | |
800 | and the key for the second entry in the log is returned. If the performance log is empty,\r | |
801 | then no entry is retrieved and zero is returned. If LogEntryKey is not zero, then the performance\r | |
802 | log entry associated with LogEntryKey is retrieved, and the key for the next entry in the log is\r | |
803 | returned. If LogEntryKey is the key for the last entry in the log, then the last log entry is\r | |
804 | retrieved and an implementation specific non-zero key value that specifies the end of the performance\r | |
805 | log is returned. If LogEntryKey is equal this implementation specific non-zero key value, then no entry\r | |
806 | is retrieved and zero is returned. In the cases where a performance log entry can be returned,\r | |
807 | the log entry is returned in Handle, Token, Module, StartTimeStamp, and EndTimeStamp.\r | |
808 | If LogEntryKey is not a valid log entry key for the performance measurement log, then ASSERT().\r | |
809 | If Handle is NULL, then ASSERT().\r | |
810 | If Token is NULL, then ASSERT().\r | |
811 | If Module is NULL, then ASSERT().\r | |
812 | If StartTimeStamp is NULL, then ASSERT().\r | |
813 | If EndTimeStamp is NULL, then ASSERT().\r | |
814 | \r | |
815 | @param LogEntryKey On entry, the key of the performance measurement log entry to retrieve.\r | |
816 | 0, then the first performance measurement log entry is retrieved.\r | |
817 | On exit, the key of the next performance log entry.\r | |
818 | @param Handle Pointer to environment specific context used to identify the component\r | |
819 | being measured.\r | |
820 | @param Token Pointer to a Null-terminated ASCII string that identifies the component\r | |
821 | being measured.\r | |
822 | @param Module Pointer to a Null-terminated ASCII string that identifies the module\r | |
823 | being measured.\r | |
824 | @param StartTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
825 | was started.\r | |
826 | @param EndTimeStamp Pointer to the 64-bit time stamp that was recorded when the measurement\r | |
827 | was ended.\r | |
828 | \r | |
829 | @return The key for the next performance log entry (in general case).\r | |
830 | \r | |
831 | **/\r | |
832 | UINTN\r | |
833 | EFIAPI\r | |
834 | GetPerformanceMeasurement (\r | |
835 | IN UINTN LogEntryKey,\r | |
836 | OUT CONST VOID **Handle,\r | |
837 | OUT CONST CHAR8 **Token,\r | |
838 | OUT CONST CHAR8 **Module,\r | |
839 | OUT UINT64 *StartTimeStamp,\r | |
840 | OUT UINT64 *EndTimeStamp\r | |
841 | )\r | |
842 | {\r | |
843 | UINT32 Identifier;\r | |
844 | return GetPerformanceMeasurementEx (LogEntryKey, Handle, Token, Module, StartTimeStamp, EndTimeStamp, &Identifier);\r | |
845 | }\r | |
846 | \r | |
d042c6e8 | 847 | /**\r |
848 | Returns TRUE if the performance measurement macros are enabled.\r | |
849 | \r | |
850 | This function returns TRUE if the PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
851 | PcdPerformanceLibraryPropertyMask is set. Otherwise FALSE is returned.\r | |
852 | \r | |
853 | @retval TRUE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
854 | PcdPerformanceLibraryPropertyMask is set.\r | |
855 | @retval FALSE The PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED bit of\r | |
856 | PcdPerformanceLibraryPropertyMask is clear.\r | |
857 | \r | |
858 | **/\r | |
859 | BOOLEAN\r | |
860 | EFIAPI\r | |
861 | PerformanceMeasurementEnabled (\r | |
862 | VOID\r | |
863 | )\r | |
864 | {\r | |
865 | return (BOOLEAN) ((PcdGet8(PcdPerformanceLibraryPropertyMask) & PERFORMANCE_LIBRARY_PROPERTY_MEASUREMENT_ENABLED) != 0);\r | |
866 | }\r |