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1 | /** @file\r | |
2 | SMI handler profile support.\r | |
3 | \r | |
4 | Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r | |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r | |
6 | \r | |
7 | **/\r | |
8 | \r | |
9 | #include <PiSmm.h>\r | |
10 | #include <Library/BaseLib.h>\r | |
11 | #include <Library/BaseMemoryLib.h>\r | |
12 | #include <Library/MemoryAllocationLib.h>\r | |
13 | #include <Library/UefiBootServicesTableLib.h>\r | |
14 | #include <Library/SmmServicesTableLib.h>\r | |
15 | #include <Library/DebugLib.h>\r | |
16 | #include <Library/PrintLib.h>\r | |
17 | #include <Library/UefiLib.h>\r | |
18 | #include <Library/DevicePathLib.h>\r | |
19 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
20 | #include <Protocol/LoadedImage.h>\r | |
21 | #include <Protocol/SmmAccess2.h>\r | |
22 | #include <Protocol/SmmReadyToLock.h>\r | |
23 | #include <Protocol/SmmEndOfDxe.h>\r | |
24 | \r | |
25 | #include <Guid/SmiHandlerProfile.h>\r | |
26 | \r | |
27 | #include "PiSmmCore.h"\r | |
28 | \r | |
29 | #define GET_OCCUPIED_SIZE(ActualSize, Alignment) \\r | |
30 | ((ActualSize) + (((Alignment) - ((ActualSize) & ((Alignment) - 1))) & ((Alignment) - 1)))\r | |
31 | \r | |
32 | typedef struct {\r | |
33 | EFI_GUID FileGuid;\r | |
34 | PHYSICAL_ADDRESS EntryPoint;\r | |
35 | PHYSICAL_ADDRESS ImageBase;\r | |
36 | UINT64 ImageSize;\r | |
37 | UINT32 ImageRef;\r | |
38 | UINT16 PdbStringSize;\r | |
39 | CHAR8 *PdbString;\r | |
40 | } IMAGE_STRUCT;\r | |
41 | \r | |
42 | /**\r | |
43 | Register SMI handler profile handler.\r | |
44 | **/\r | |
45 | VOID\r | |
46 | RegisterSmiHandlerProfileHandler(\r | |
47 | VOID\r | |
48 | );\r | |
49 | \r | |
50 | /**\r | |
51 | Retrieves and returns a pointer to the entry point to a PE/COFF image that has been loaded\r | |
52 | into system memory with the PE/COFF Loader Library functions.\r | |
53 | \r | |
54 | Retrieves the entry point to the PE/COFF image specified by Pe32Data and returns this entry\r | |
55 | point in EntryPoint. If the entry point could not be retrieved from the PE/COFF image, then\r | |
56 | return RETURN_INVALID_PARAMETER. Otherwise return RETURN_SUCCESS.\r | |
57 | If Pe32Data is NULL, then ASSERT().\r | |
58 | If EntryPoint is NULL, then ASSERT().\r | |
59 | \r | |
60 | @param Pe32Data The pointer to the PE/COFF image that is loaded in system memory.\r | |
61 | @param EntryPoint The pointer to entry point to the PE/COFF image to return.\r | |
62 | \r | |
63 | @retval RETURN_SUCCESS EntryPoint was returned.\r | |
64 | @retval RETURN_INVALID_PARAMETER The entry point could not be found in the PE/COFF image.\r | |
65 | \r | |
66 | **/\r | |
67 | RETURN_STATUS\r | |
68 | InternalPeCoffGetEntryPoint (\r | |
69 | IN VOID *Pe32Data,\r | |
70 | OUT VOID **EntryPoint\r | |
71 | );\r | |
72 | \r | |
73 | extern LIST_ENTRY mSmiEntryList;\r | |
74 | extern LIST_ENTRY mHardwareSmiEntryList;\r | |
75 | extern SMI_ENTRY mRootSmiEntry;\r | |
76 | \r | |
77 | extern SMI_HANDLER_PROFILE_PROTOCOL mSmiHandlerProfile;\r | |
78 | \r | |
79 | GLOBAL_REMOVE_IF_UNREFERENCED LIST_ENTRY mHardwareSmiEntryList = INITIALIZE_LIST_HEAD_VARIABLE (mHardwareSmiEntryList);\r | |
80 | \r | |
81 | GLOBAL_REMOVE_IF_UNREFERENCED LIST_ENTRY mRootSmiEntryList = INITIALIZE_LIST_HEAD_VARIABLE (mRootSmiEntryList);\r | |
82 | \r | |
83 | GLOBAL_REMOVE_IF_UNREFERENCED LIST_ENTRY *mSmmCoreRootSmiEntryList = &mRootSmiEntryList;\r | |
84 | GLOBAL_REMOVE_IF_UNREFERENCED LIST_ENTRY *mSmmCoreSmiEntryList = &mSmiEntryList;\r | |
85 | GLOBAL_REMOVE_IF_UNREFERENCED LIST_ENTRY *mSmmCoreHardwareSmiEntryList = &mHardwareSmiEntryList;\r | |
86 | \r | |
87 | GLOBAL_REMOVE_IF_UNREFERENCED IMAGE_STRUCT *mImageStruct;\r | |
88 | GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mImageStructCountMax;\r | |
89 | GLOBAL_REMOVE_IF_UNREFERENCED UINT32 mImageStructCount;\r | |
90 | \r | |
91 | GLOBAL_REMOVE_IF_UNREFERENCED VOID *mSmiHandlerProfileDatabase;\r | |
92 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mSmiHandlerProfileDatabaseSize;\r | |
93 | \r | |
94 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mSmmImageDatabaseSize;\r | |
95 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mSmmRootSmiDatabaseSize;\r | |
96 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mSmmSmiDatabaseSize;\r | |
97 | GLOBAL_REMOVE_IF_UNREFERENCED UINTN mSmmHardwareSmiDatabaseSize;\r | |
98 | \r | |
99 | GLOBAL_REMOVE_IF_UNREFERENCED BOOLEAN mSmiHandlerProfileRecordingStatus;\r | |
100 | \r | |
101 | GLOBAL_REMOVE_IF_UNREFERENCED SMI_HANDLER_PROFILE_PROTOCOL mSmiHandlerProfile = {\r | |
102 | SmiHandlerProfileRegisterHandler,\r | |
103 | SmiHandlerProfileUnregisterHandler,\r | |
104 | };\r | |
105 | \r | |
106 | /**\r | |
107 | This function dump raw data.\r | |
108 | \r | |
109 | @param Data raw data\r | |
110 | @param Size raw data size\r | |
111 | **/\r | |
112 | VOID\r | |
113 | InternalDumpData (\r | |
114 | IN UINT8 *Data,\r | |
115 | IN UINTN Size\r | |
116 | )\r | |
117 | {\r | |
118 | UINTN Index;\r | |
119 | for (Index = 0; Index < Size; Index++) {\r | |
120 | DEBUG ((DEBUG_INFO, "%02x ", (UINTN)Data[Index]));\r | |
121 | }\r | |
122 | }\r | |
123 | \r | |
124 | /**\r | |
125 | Get GUID name for an image.\r | |
126 | \r | |
127 | @param[in] LoadedImage LoadedImage protocol.\r | |
128 | @param[out] Guid Guid of the FFS\r | |
129 | **/\r | |
130 | VOID\r | |
131 | GetDriverGuid (\r | |
132 | IN EFI_LOADED_IMAGE_PROTOCOL *LoadedImage,\r | |
133 | OUT EFI_GUID *Guid\r | |
134 | )\r | |
135 | {\r | |
136 | EFI_GUID *FileName;\r | |
137 | \r | |
138 | FileName = NULL;\r | |
139 | if ((DevicePathType(LoadedImage->FilePath) == MEDIA_DEVICE_PATH) &&\r | |
140 | (DevicePathSubType(LoadedImage->FilePath) == MEDIA_PIWG_FW_FILE_DP)) {\r | |
141 | FileName = &((MEDIA_FW_VOL_FILEPATH_DEVICE_PATH *)LoadedImage->FilePath)->FvFileName;\r | |
142 | }\r | |
143 | if (FileName != NULL) {\r | |
144 | CopyGuid(Guid, FileName);\r | |
145 | } else {\r | |
146 | ZeroMem(Guid, sizeof(EFI_GUID));\r | |
147 | }\r | |
148 | }\r | |
149 | \r | |
150 | /**\r | |
151 | Add image structure.\r | |
152 | \r | |
153 | @param ImageBase image base\r | |
154 | @param ImageSize image size\r | |
155 | @param EntryPoint image entry point\r | |
156 | @param Guid FFS GUID of the image\r | |
157 | @param PdbString image PDB string\r | |
158 | **/\r | |
159 | VOID\r | |
160 | AddImageStruct(\r | |
161 | IN PHYSICAL_ADDRESS ImageBase,\r | |
162 | IN UINT64 ImageSize,\r | |
163 | IN PHYSICAL_ADDRESS EntryPoint,\r | |
164 | IN EFI_GUID *Guid,\r | |
165 | IN CHAR8 *PdbString\r | |
166 | )\r | |
167 | {\r | |
168 | UINTN PdbStringSize;\r | |
169 | \r | |
170 | if (mImageStructCount >= mImageStructCountMax) {\r | |
171 | ASSERT(FALSE);\r | |
172 | return;\r | |
173 | }\r | |
174 | \r | |
175 | CopyGuid(&mImageStruct[mImageStructCount].FileGuid, Guid);\r | |
176 | mImageStruct[mImageStructCount].ImageRef = mImageStructCount;\r | |
177 | mImageStruct[mImageStructCount].ImageBase = ImageBase;\r | |
178 | mImageStruct[mImageStructCount].ImageSize = ImageSize;\r | |
179 | mImageStruct[mImageStructCount].EntryPoint = EntryPoint;\r | |
180 | if (PdbString != NULL) {\r | |
181 | PdbStringSize = AsciiStrSize(PdbString);\r | |
182 | mImageStruct[mImageStructCount].PdbString = AllocateCopyPool (PdbStringSize, PdbString);\r | |
183 | if (mImageStruct[mImageStructCount].PdbString != NULL) {\r | |
184 | mImageStruct[mImageStructCount].PdbStringSize = (UINT16) PdbStringSize;\r | |
185 | }\r | |
186 | }\r | |
187 | \r | |
188 | mImageStructCount++;\r | |
189 | }\r | |
190 | \r | |
191 | /**\r | |
192 | return an image structure based upon image address.\r | |
193 | \r | |
194 | @param Address image address\r | |
195 | \r | |
196 | @return image structure\r | |
197 | **/\r | |
198 | IMAGE_STRUCT *\r | |
199 | AddressToImageStruct(\r | |
200 | IN UINTN Address\r | |
201 | )\r | |
202 | {\r | |
203 | UINTN Index;\r | |
204 | \r | |
205 | for (Index = 0; Index < mImageStructCount; Index++) {\r | |
206 | if ((Address >= mImageStruct[Index].ImageBase) &&\r | |
207 | (Address < mImageStruct[Index].ImageBase + mImageStruct[Index].ImageSize)) {\r | |
208 | return &mImageStruct[Index];\r | |
209 | }\r | |
210 | }\r | |
211 | return NULL;\r | |
212 | }\r | |
213 | \r | |
214 | /**\r | |
215 | return an image reference index based upon image address.\r | |
216 | \r | |
217 | @param Address image address\r | |
218 | \r | |
219 | @return image reference index\r | |
220 | **/\r | |
221 | UINT32\r | |
222 | AddressToImageRef(\r | |
223 | IN UINTN Address\r | |
224 | )\r | |
225 | {\r | |
226 | IMAGE_STRUCT *ImageStruct;\r | |
227 | \r | |
228 | ImageStruct = AddressToImageStruct(Address);\r | |
229 | if (ImageStruct != NULL) {\r | |
230 | return ImageStruct->ImageRef;\r | |
231 | }\r | |
232 | return (UINT32)-1;\r | |
233 | }\r | |
234 | \r | |
235 | /**\r | |
236 | Collect SMM image information based upon loaded image protocol.\r | |
237 | **/\r | |
238 | VOID\r | |
239 | GetSmmLoadedImage(\r | |
240 | VOID\r | |
241 | )\r | |
242 | {\r | |
243 | EFI_STATUS Status;\r | |
244 | UINTN NoHandles;\r | |
245 | UINTN HandleBufferSize;\r | |
246 | EFI_HANDLE *HandleBuffer;\r | |
247 | UINTN Index;\r | |
248 | EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r | |
249 | CHAR16 *PathStr;\r | |
250 | EFI_SMM_DRIVER_ENTRY *LoadedImagePrivate;\r | |
251 | PHYSICAL_ADDRESS EntryPoint;\r | |
252 | VOID *EntryPointInImage;\r | |
253 | EFI_GUID Guid;\r | |
254 | CHAR8 *PdbString;\r | |
255 | PHYSICAL_ADDRESS RealImageBase;\r | |
256 | \r | |
257 | HandleBufferSize = 0;\r | |
258 | HandleBuffer = NULL;\r | |
259 | Status = gSmst->SmmLocateHandle(\r | |
260 | ByProtocol,\r | |
261 | &gEfiLoadedImageProtocolGuid,\r | |
262 | NULL,\r | |
263 | &HandleBufferSize,\r | |
264 | HandleBuffer\r | |
265 | );\r | |
266 | if (Status != EFI_BUFFER_TOO_SMALL) {\r | |
267 | return;\r | |
268 | }\r | |
269 | HandleBuffer = AllocateZeroPool (HandleBufferSize);\r | |
270 | if (HandleBuffer == NULL) {\r | |
271 | return;\r | |
272 | }\r | |
273 | Status = gSmst->SmmLocateHandle(\r | |
274 | ByProtocol,\r | |
275 | &gEfiLoadedImageProtocolGuid,\r | |
276 | NULL,\r | |
277 | &HandleBufferSize,\r | |
278 | HandleBuffer\r | |
279 | );\r | |
280 | if (EFI_ERROR(Status)) {\r | |
281 | return;\r | |
282 | }\r | |
283 | \r | |
284 | NoHandles = HandleBufferSize/sizeof(EFI_HANDLE);\r | |
285 | mImageStructCountMax = (UINT32) NoHandles;\r | |
286 | mImageStruct = AllocateZeroPool(mImageStructCountMax * sizeof(IMAGE_STRUCT));\r | |
287 | if (mImageStruct == NULL) {\r | |
288 | goto Done;\r | |
289 | }\r | |
290 | \r | |
291 | for (Index = 0; Index < NoHandles; Index++) {\r | |
292 | Status = gSmst->SmmHandleProtocol(\r | |
293 | HandleBuffer[Index],\r | |
294 | &gEfiLoadedImageProtocolGuid,\r | |
295 | (VOID **)&LoadedImage\r | |
296 | );\r | |
297 | if (EFI_ERROR(Status)) {\r | |
298 | continue;\r | |
299 | }\r | |
300 | PathStr = ConvertDevicePathToText(LoadedImage->FilePath, TRUE, TRUE);\r | |
301 | GetDriverGuid(LoadedImage, &Guid);\r | |
302 | DEBUG ((DEBUG_INFO, "Image: %g ", &Guid));\r | |
303 | \r | |
304 | EntryPoint = 0;\r | |
305 | LoadedImagePrivate = BASE_CR(LoadedImage, EFI_SMM_DRIVER_ENTRY, SmmLoadedImage);\r | |
306 | RealImageBase = (UINTN)LoadedImage->ImageBase;\r | |
307 | if (LoadedImagePrivate->Signature == EFI_SMM_DRIVER_ENTRY_SIGNATURE) {\r | |
308 | EntryPoint = LoadedImagePrivate->ImageEntryPoint;\r | |
309 | if ((EntryPoint != 0) && ((EntryPoint < (UINTN)LoadedImage->ImageBase) || (EntryPoint >= ((UINTN)LoadedImage->ImageBase + LoadedImage->ImageSize)))) {\r | |
310 | //\r | |
311 | // If the EntryPoint is not in the range of image buffer, it should come from emulation environment.\r | |
312 | // So patch ImageBuffer here to align the EntryPoint.\r | |
313 | //\r | |
314 | Status = InternalPeCoffGetEntryPoint(LoadedImage->ImageBase, &EntryPointInImage);\r | |
315 | ASSERT_EFI_ERROR(Status);\r | |
316 | RealImageBase = (UINTN)LoadedImage->ImageBase + EntryPoint - (UINTN)EntryPointInImage;\r | |
317 | }\r | |
318 | }\r | |
319 | DEBUG ((DEBUG_INFO, "(0x%lx - 0x%lx", RealImageBase, LoadedImage->ImageSize));\r | |
320 | if (EntryPoint != 0) {\r | |
321 | DEBUG ((DEBUG_INFO, ", EntryPoint:0x%lx", EntryPoint));\r | |
322 | }\r | |
323 | DEBUG ((DEBUG_INFO, ")\n"));\r | |
324 | \r | |
325 | if (RealImageBase != 0) {\r | |
326 | PdbString = PeCoffLoaderGetPdbPointer ((VOID*) (UINTN) RealImageBase);\r | |
327 | DEBUG ((DEBUG_INFO, " pdb - %a\n", PdbString));\r | |
328 | } else {\r | |
329 | PdbString = NULL;\r | |
330 | }\r | |
331 | DEBUG ((DEBUG_INFO, " (%s)\n", PathStr));\r | |
332 | \r | |
333 | AddImageStruct(RealImageBase, LoadedImage->ImageSize, EntryPoint, &Guid, PdbString);\r | |
334 | }\r | |
335 | \r | |
336 | Done:\r | |
337 | FreePool(HandleBuffer);\r | |
338 | return;\r | |
339 | }\r | |
340 | \r | |
341 | /**\r | |
342 | Dump SMI child context.\r | |
343 | \r | |
344 | @param HandlerType the handler type\r | |
345 | @param Context the handler context\r | |
346 | @param ContextSize the handler context size\r | |
347 | **/\r | |
348 | VOID\r | |
349 | DumpSmiChildContext (\r | |
350 | IN EFI_GUID *HandlerType,\r | |
351 | IN VOID *Context,\r | |
352 | IN UINTN ContextSize\r | |
353 | )\r | |
354 | {\r | |
355 | CHAR16 *Str;\r | |
356 | \r | |
357 | if (CompareGuid (HandlerType, &gEfiSmmSwDispatch2ProtocolGuid)) {\r | |
358 | DEBUG ((DEBUG_INFO, " SwSmi - 0x%lx\n", ((SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT *)Context)->SwSmiInputValue));\r | |
359 | } else if (CompareGuid (HandlerType, &gEfiSmmSxDispatch2ProtocolGuid)) {\r | |
360 | DEBUG ((DEBUG_INFO, " SxType - 0x%x\n", ((EFI_SMM_SX_REGISTER_CONTEXT *)Context)->Type));\r | |
361 | DEBUG ((DEBUG_INFO, " SxPhase - 0x%x\n", ((EFI_SMM_SX_REGISTER_CONTEXT *)Context)->Phase));\r | |
362 | } else if (CompareGuid (HandlerType, &gEfiSmmPowerButtonDispatch2ProtocolGuid)) {\r | |
363 | DEBUG ((DEBUG_INFO, " PowerButtonPhase - 0x%x\n", ((EFI_SMM_POWER_BUTTON_REGISTER_CONTEXT *)Context)->Phase));\r | |
364 | } else if (CompareGuid (HandlerType, &gEfiSmmStandbyButtonDispatch2ProtocolGuid)) {\r | |
365 | DEBUG ((DEBUG_INFO, " StandbyButtonPhase - 0x%x\n", ((EFI_SMM_STANDBY_BUTTON_REGISTER_CONTEXT *)Context)->Phase));\r | |
366 | } else if (CompareGuid (HandlerType, &gEfiSmmPeriodicTimerDispatch2ProtocolGuid)) {\r | |
367 | DEBUG ((DEBUG_INFO, " PeriodicTimerPeriod - %ld\n", ((EFI_SMM_PERIODIC_TIMER_REGISTER_CONTEXT *)Context)->Period));\r | |
368 | DEBUG ((DEBUG_INFO, " PeriodicTimerSmiTickInterval - %ld\n", ((EFI_SMM_PERIODIC_TIMER_REGISTER_CONTEXT *)Context)->SmiTickInterval));\r | |
369 | } else if (CompareGuid (HandlerType, &gEfiSmmGpiDispatch2ProtocolGuid)) {\r | |
370 | DEBUG ((DEBUG_INFO, " GpiNum - 0x%lx\n", ((EFI_SMM_GPI_REGISTER_CONTEXT *)Context)->GpiNum));\r | |
371 | } else if (CompareGuid (HandlerType, &gEfiSmmIoTrapDispatch2ProtocolGuid)) {\r | |
372 | DEBUG ((DEBUG_INFO, " IoTrapAddress - 0x%x\n", ((EFI_SMM_IO_TRAP_REGISTER_CONTEXT *)Context)->Address));\r | |
373 | DEBUG ((DEBUG_INFO, " IoTrapLength - 0x%x\n", ((EFI_SMM_IO_TRAP_REGISTER_CONTEXT *)Context)->Length));\r | |
374 | DEBUG ((DEBUG_INFO, " IoTrapType - 0x%x\n", ((EFI_SMM_IO_TRAP_REGISTER_CONTEXT *)Context)->Type));\r | |
375 | } else if (CompareGuid (HandlerType, &gEfiSmmUsbDispatch2ProtocolGuid)) {\r | |
376 | DEBUG ((DEBUG_INFO, " UsbType - 0x%x\n", ((SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT *)Context)->Type));\r | |
377 | Str = ConvertDevicePathToText((EFI_DEVICE_PATH_PROTOCOL *)(((SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT *)Context) + 1), TRUE, TRUE);\r | |
378 | DEBUG ((DEBUG_INFO, " UsbDevicePath - %s\n", Str));\r | |
379 | if (Str != NULL) {\r | |
380 | FreePool (Str);\r | |
381 | }\r | |
382 | } else {\r | |
383 | DEBUG ((DEBUG_INFO, " Context - "));\r | |
384 | InternalDumpData (Context, ContextSize);\r | |
385 | DEBUG ((DEBUG_INFO, "\n"));\r | |
386 | }\r | |
387 | }\r | |
388 | \r | |
389 | /**\r | |
390 | Dump all SMI handlers associated with SmiEntry.\r | |
391 | \r | |
392 | @param SmiEntry SMI entry.\r | |
393 | **/\r | |
394 | VOID\r | |
395 | DumpSmiHandlerOnSmiEntry(\r | |
396 | IN SMI_ENTRY *SmiEntry\r | |
397 | )\r | |
398 | {\r | |
399 | LIST_ENTRY *ListEntry;\r | |
400 | SMI_HANDLER *SmiHandler;\r | |
401 | IMAGE_STRUCT *ImageStruct;\r | |
402 | \r | |
403 | ListEntry = &SmiEntry->SmiHandlers;\r | |
404 | for (ListEntry = ListEntry->ForwardLink;\r | |
405 | ListEntry != &SmiEntry->SmiHandlers;\r | |
406 | ListEntry = ListEntry->ForwardLink) {\r | |
407 | SmiHandler = CR(ListEntry, SMI_HANDLER, Link, SMI_HANDLER_SIGNATURE);\r | |
408 | ImageStruct = AddressToImageStruct((UINTN)SmiHandler->Handler);\r | |
409 | if (ImageStruct != NULL) {\r | |
410 | DEBUG ((DEBUG_INFO, " Module - %g", &ImageStruct->FileGuid));\r | |
411 | }\r | |
412 | if ((ImageStruct != NULL) && (ImageStruct->PdbString[0] != 0)) {\r | |
413 | DEBUG ((DEBUG_INFO, " (Pdb - %a)", ImageStruct->PdbString));\r | |
414 | }\r | |
415 | DEBUG ((DEBUG_INFO, "\n"));\r | |
416 | if (SmiHandler->ContextSize != 0) {\r | |
417 | DumpSmiChildContext (&SmiEntry->HandlerType, SmiHandler->Context, SmiHandler->ContextSize);\r | |
418 | }\r | |
419 | DEBUG ((DEBUG_INFO, " Handler - 0x%x", SmiHandler->Handler));\r | |
420 | if (ImageStruct != NULL) {\r | |
421 | DEBUG ((DEBUG_INFO, " <== RVA - 0x%x", (UINTN)SmiHandler->Handler - (UINTN) ImageStruct->ImageBase));\r | |
422 | }\r | |
423 | DEBUG ((DEBUG_INFO, "\n"));\r | |
424 | DEBUG ((DEBUG_INFO, " CallerAddr - 0x%x", SmiHandler->CallerAddr));\r | |
425 | if (ImageStruct != NULL) {\r | |
426 | DEBUG ((DEBUG_INFO, " <== RVA - 0x%x", SmiHandler->CallerAddr - (UINTN) ImageStruct->ImageBase));\r | |
427 | }\r | |
428 | DEBUG ((DEBUG_INFO, "\n"));\r | |
429 | }\r | |
430 | \r | |
431 | return;\r | |
432 | }\r | |
433 | \r | |
434 | /**\r | |
435 | Dump all SMI entry on the list.\r | |
436 | \r | |
437 | @param SmiEntryList a list of SMI entry.\r | |
438 | **/\r | |
439 | VOID\r | |
440 | DumpSmiEntryList(\r | |
441 | IN LIST_ENTRY *SmiEntryList\r | |
442 | )\r | |
443 | {\r | |
444 | LIST_ENTRY *ListEntry;\r | |
445 | SMI_ENTRY *SmiEntry;\r | |
446 | \r | |
447 | ListEntry = SmiEntryList;\r | |
448 | for (ListEntry = ListEntry->ForwardLink;\r | |
449 | ListEntry != SmiEntryList;\r | |
450 | ListEntry = ListEntry->ForwardLink) {\r | |
451 | SmiEntry = CR(ListEntry, SMI_ENTRY, AllEntries, SMI_ENTRY_SIGNATURE);\r | |
452 | DEBUG ((DEBUG_INFO, "SmiEntry - %g\n", &SmiEntry->HandlerType));\r | |
453 | DumpSmiHandlerOnSmiEntry(SmiEntry);\r | |
454 | }\r | |
455 | \r | |
456 | return;\r | |
457 | }\r | |
458 | \r | |
459 | /**\r | |
460 | SMM Ready To Lock event notification handler.\r | |
461 | \r | |
462 | This function collects all SMM image information and build SmiHandleProfile database,\r | |
463 | and register SmiHandlerProfile SMI handler.\r | |
464 | \r | |
465 | @param[in] Protocol Points to the protocol's unique identifier.\r | |
466 | @param[in] Interface Points to the interface instance.\r | |
467 | @param[in] Handle The handle on which the interface was installed.\r | |
468 | \r | |
469 | @retval EFI_SUCCESS Notification handler runs successfully.\r | |
470 | **/\r | |
471 | EFI_STATUS\r | |
472 | EFIAPI\r | |
473 | SmmReadyToLockInSmiHandlerProfile (\r | |
474 | IN CONST EFI_GUID *Protocol,\r | |
475 | IN VOID *Interface,\r | |
476 | IN EFI_HANDLE Handle\r | |
477 | )\r | |
478 | {\r | |
479 | //\r | |
480 | // Dump all image\r | |
481 | //\r | |
482 | DEBUG ((DEBUG_INFO, "##################\n"));\r | |
483 | DEBUG ((DEBUG_INFO, "# IMAGE DATABASE #\n"));\r | |
484 | DEBUG ((DEBUG_INFO, "##################\n"));\r | |
485 | GetSmmLoadedImage ();\r | |
486 | DEBUG ((DEBUG_INFO, "\n"));\r | |
487 | \r | |
488 | //\r | |
489 | // Dump SMI Handler\r | |
490 | //\r | |
491 | DEBUG ((DEBUG_INFO, "########################\n"));\r | |
492 | DEBUG ((DEBUG_INFO, "# SMI Handler DATABASE #\n"));\r | |
493 | DEBUG ((DEBUG_INFO, "########################\n"));\r | |
494 | \r | |
495 | DEBUG ((DEBUG_INFO, "# 1. ROOT SMI Handler #\n"));\r | |
496 | DEBUG_CODE (\r | |
497 | DumpSmiEntryList(mSmmCoreRootSmiEntryList);\r | |
498 | );\r | |
499 | \r | |
500 | DEBUG ((DEBUG_INFO, "# 2. GUID SMI Handler #\n"));\r | |
501 | DEBUG_CODE (\r | |
502 | DumpSmiEntryList(mSmmCoreSmiEntryList);\r | |
503 | );\r | |
504 | \r | |
505 | DEBUG ((DEBUG_INFO, "# 3. Hardware SMI Handler #\n"));\r | |
506 | DEBUG_CODE (\r | |
507 | DumpSmiEntryList(mSmmCoreHardwareSmiEntryList);\r | |
508 | );\r | |
509 | \r | |
510 | DEBUG ((DEBUG_INFO, "\n"));\r | |
511 | \r | |
512 | RegisterSmiHandlerProfileHandler();\r | |
513 | \r | |
514 | if (mImageStruct != NULL) {\r | |
515 | FreePool(mImageStruct);\r | |
516 | }\r | |
517 | \r | |
518 | return EFI_SUCCESS;\r | |
519 | }\r | |
520 | \r | |
521 | /**\r | |
522 | returns SMM image data base size.\r | |
523 | \r | |
524 | @return SMM image data base size.\r | |
525 | **/\r | |
526 | UINTN\r | |
527 | GetSmmImageDatabaseSize(\r | |
528 | VOID\r | |
529 | )\r | |
530 | {\r | |
531 | UINTN Size;\r | |
532 | UINT32 Index;\r | |
533 | \r | |
534 | Size = 0;\r | |
535 | for (Index = 0; Index < mImageStructCount; Index++) {\r | |
536 | Size += sizeof(SMM_CORE_IMAGE_DATABASE_STRUCTURE) + GET_OCCUPIED_SIZE (mImageStruct[Index].PdbStringSize, sizeof (UINT64));\r | |
537 | }\r | |
538 | return Size;\r | |
539 | }\r | |
540 | \r | |
541 | /**\r | |
542 | returns all SMI handlers' size associated with SmiEntry.\r | |
543 | \r | |
544 | @param SmiEntry SMI entry.\r | |
545 | \r | |
546 | @return all SMI handlers' size associated with SmiEntry.\r | |
547 | **/\r | |
548 | UINTN\r | |
549 | GetSmmSmiHandlerSizeOnSmiEntry(\r | |
550 | IN SMI_ENTRY *SmiEntry\r | |
551 | )\r | |
552 | {\r | |
553 | LIST_ENTRY *ListEntry;\r | |
554 | SMI_HANDLER *SmiHandler;\r | |
555 | UINTN Size;\r | |
556 | \r | |
557 | Size = 0;\r | |
558 | ListEntry = &SmiEntry->SmiHandlers;\r | |
559 | for (ListEntry = ListEntry->ForwardLink;\r | |
560 | ListEntry != &SmiEntry->SmiHandlers;\r | |
561 | ListEntry = ListEntry->ForwardLink) {\r | |
562 | SmiHandler = CR(ListEntry, SMI_HANDLER, Link, SMI_HANDLER_SIGNATURE);\r | |
563 | Size += sizeof(SMM_CORE_SMI_HANDLER_STRUCTURE) + GET_OCCUPIED_SIZE (SmiHandler->ContextSize, sizeof (UINT64));\r | |
564 | }\r | |
565 | \r | |
566 | return Size;\r | |
567 | }\r | |
568 | \r | |
569 | /**\r | |
570 | return all SMI handler database size on the SMI entry list.\r | |
571 | \r | |
572 | @param SmiEntryList a list of SMI entry.\r | |
573 | \r | |
574 | @return all SMI handler database size on the SMI entry list.\r | |
575 | **/\r | |
576 | UINTN\r | |
577 | GetSmmSmiDatabaseSize(\r | |
578 | IN LIST_ENTRY *SmiEntryList\r | |
579 | )\r | |
580 | {\r | |
581 | LIST_ENTRY *ListEntry;\r | |
582 | SMI_ENTRY *SmiEntry;\r | |
583 | UINTN Size;\r | |
584 | \r | |
585 | Size = 0;\r | |
586 | ListEntry = SmiEntryList;\r | |
587 | for (ListEntry = ListEntry->ForwardLink;\r | |
588 | ListEntry != SmiEntryList;\r | |
589 | ListEntry = ListEntry->ForwardLink) {\r | |
590 | SmiEntry = CR(ListEntry, SMI_ENTRY, AllEntries, SMI_ENTRY_SIGNATURE);\r | |
591 | Size += sizeof(SMM_CORE_SMI_DATABASE_STRUCTURE);\r | |
592 | Size += GetSmmSmiHandlerSizeOnSmiEntry(SmiEntry);\r | |
593 | }\r | |
594 | return Size;\r | |
595 | }\r | |
596 | \r | |
597 | /**\r | |
598 | return SMI handler profile database size.\r | |
599 | \r | |
600 | @return SMI handler profile database size.\r | |
601 | **/\r | |
602 | UINTN\r | |
603 | GetSmiHandlerProfileDatabaseSize (\r | |
604 | VOID\r | |
605 | )\r | |
606 | {\r | |
607 | mSmmImageDatabaseSize = GetSmmImageDatabaseSize();\r | |
608 | mSmmRootSmiDatabaseSize = GetSmmSmiDatabaseSize(mSmmCoreRootSmiEntryList);\r | |
609 | mSmmSmiDatabaseSize = GetSmmSmiDatabaseSize(mSmmCoreSmiEntryList);\r | |
610 | mSmmHardwareSmiDatabaseSize = GetSmmSmiDatabaseSize(mSmmCoreHardwareSmiEntryList);\r | |
611 | \r | |
612 | return mSmmImageDatabaseSize + mSmmSmiDatabaseSize + mSmmRootSmiDatabaseSize + mSmmHardwareSmiDatabaseSize;\r | |
613 | }\r | |
614 | \r | |
615 | /**\r | |
616 | get SMM image database.\r | |
617 | \r | |
618 | @param Data The buffer to hold SMM image database\r | |
619 | @param ExpectedSize The expected size of the SMM image database\r | |
620 | \r | |
621 | @return SMM image data base size.\r | |
622 | **/\r | |
623 | UINTN\r | |
624 | GetSmmImageDatabaseData (\r | |
625 | IN OUT VOID *Data,\r | |
626 | IN UINTN ExpectedSize\r | |
627 | )\r | |
628 | {\r | |
629 | SMM_CORE_IMAGE_DATABASE_STRUCTURE *ImageStruct;\r | |
630 | UINTN Size;\r | |
631 | UINTN Index;\r | |
632 | \r | |
633 | ImageStruct = Data;\r | |
634 | Size = 0;\r | |
635 | for (Index = 0; Index < mImageStructCount; Index++) {\r | |
636 | if (Size >= ExpectedSize) {\r | |
637 | return 0;\r | |
638 | }\r | |
639 | if (sizeof(SMM_CORE_IMAGE_DATABASE_STRUCTURE) + GET_OCCUPIED_SIZE (mImageStruct[Index].PdbStringSize, sizeof (UINT64)) > ExpectedSize - Size) {\r | |
640 | return 0;\r | |
641 | }\r | |
642 | ImageStruct->Header.Signature = SMM_CORE_IMAGE_DATABASE_SIGNATURE;\r | |
643 | ImageStruct->Header.Length = (UINT32)(sizeof(SMM_CORE_IMAGE_DATABASE_STRUCTURE) + GET_OCCUPIED_SIZE (mImageStruct[Index].PdbStringSize, sizeof (UINT64)));\r | |
644 | ImageStruct->Header.Revision = SMM_CORE_IMAGE_DATABASE_REVISION;\r | |
645 | CopyGuid(&ImageStruct->FileGuid, &mImageStruct[Index].FileGuid);\r | |
646 | ImageStruct->ImageRef = mImageStruct[Index].ImageRef;\r | |
647 | ImageStruct->EntryPoint = mImageStruct[Index].EntryPoint;\r | |
648 | ImageStruct->ImageBase = mImageStruct[Index].ImageBase;\r | |
649 | ImageStruct->ImageSize = mImageStruct[Index].ImageSize;\r | |
650 | if (mImageStruct[Index].PdbStringSize != 0) {\r | |
651 | ImageStruct->PdbStringOffset = sizeof(SMM_CORE_IMAGE_DATABASE_STRUCTURE);\r | |
652 | CopyMem ((VOID *)((UINTN)ImageStruct + ImageStruct->PdbStringOffset), mImageStruct[Index].PdbString, mImageStruct[Index].PdbStringSize);\r | |
653 | } else {\r | |
654 | ImageStruct->PdbStringOffset = 0;\r | |
655 | }\r | |
656 | ImageStruct = (SMM_CORE_IMAGE_DATABASE_STRUCTURE *)((UINTN)ImageStruct + ImageStruct->Header.Length);\r | |
657 | Size += sizeof(SMM_CORE_IMAGE_DATABASE_STRUCTURE) + GET_OCCUPIED_SIZE (mImageStruct[Index].PdbStringSize, sizeof (UINT64));\r | |
658 | }\r | |
659 | \r | |
660 | if (ExpectedSize != Size) {\r | |
661 | return 0;\r | |
662 | }\r | |
663 | return Size;\r | |
664 | }\r | |
665 | \r | |
666 | /**\r | |
667 | get all SMI handler data associated with SmiEntry.\r | |
668 | \r | |
669 | @param SmiEntry SMI entry.\r | |
670 | @param Data The buffer to hold all SMI handler data\r | |
671 | @param MaxSize The max size of the SMM image database\r | |
672 | @param Count The count of the SMI handler.\r | |
673 | \r | |
674 | @return SMM image data base size.\r | |
675 | **/\r | |
676 | UINTN\r | |
677 | GetSmmSmiHandlerDataOnSmiEntry(\r | |
678 | IN SMI_ENTRY *SmiEntry,\r | |
679 | IN OUT VOID *Data,\r | |
680 | IN UINTN MaxSize,\r | |
681 | OUT UINT32 *Count\r | |
682 | )\r | |
683 | {\r | |
684 | SMM_CORE_SMI_HANDLER_STRUCTURE *SmiHandlerStruct;\r | |
685 | LIST_ENTRY *ListEntry;\r | |
686 | SMI_HANDLER *SmiHandler;\r | |
687 | UINTN Size;\r | |
688 | \r | |
689 | SmiHandlerStruct = Data;\r | |
690 | Size = 0;\r | |
691 | *Count = 0;\r | |
692 | ListEntry = &SmiEntry->SmiHandlers;\r | |
693 | for (ListEntry = ListEntry->ForwardLink;\r | |
694 | ListEntry != &SmiEntry->SmiHandlers;\r | |
695 | ListEntry = ListEntry->ForwardLink) {\r | |
696 | SmiHandler = CR(ListEntry, SMI_HANDLER, Link, SMI_HANDLER_SIGNATURE);\r | |
697 | if (Size >= MaxSize) {\r | |
698 | *Count = 0;\r | |
699 | return 0;\r | |
700 | }\r | |
701 | if (sizeof(SMM_CORE_SMI_HANDLER_STRUCTURE) + GET_OCCUPIED_SIZE (SmiHandler->ContextSize, sizeof (UINT64)) > MaxSize - Size) {\r | |
702 | *Count = 0;\r | |
703 | return 0;\r | |
704 | }\r | |
705 | SmiHandlerStruct->Length = (UINT32)(sizeof(SMM_CORE_SMI_HANDLER_STRUCTURE) + GET_OCCUPIED_SIZE (SmiHandler->ContextSize, sizeof (UINT64)));\r | |
706 | SmiHandlerStruct->CallerAddr = (UINTN)SmiHandler->CallerAddr;\r | |
707 | SmiHandlerStruct->Handler = (UINTN)SmiHandler->Handler;\r | |
708 | SmiHandlerStruct->ImageRef = AddressToImageRef((UINTN)SmiHandler->Handler);\r | |
709 | SmiHandlerStruct->ContextBufferSize = (UINT32)SmiHandler->ContextSize;\r | |
710 | if (SmiHandler->ContextSize != 0) {\r | |
711 | SmiHandlerStruct->ContextBufferOffset = sizeof(SMM_CORE_SMI_HANDLER_STRUCTURE);\r | |
712 | CopyMem ((UINT8 *)SmiHandlerStruct + SmiHandlerStruct->ContextBufferOffset, SmiHandler->Context, SmiHandler->ContextSize);\r | |
713 | } else {\r | |
714 | SmiHandlerStruct->ContextBufferOffset = 0;\r | |
715 | }\r | |
716 | Size += sizeof(SMM_CORE_SMI_HANDLER_STRUCTURE) + GET_OCCUPIED_SIZE (SmiHandler->ContextSize, sizeof (UINT64));\r | |
717 | SmiHandlerStruct = (SMM_CORE_SMI_HANDLER_STRUCTURE *)((UINTN)SmiHandlerStruct + SmiHandlerStruct->Length);\r | |
718 | *Count = *Count + 1;\r | |
719 | }\r | |
720 | \r | |
721 | return Size;\r | |
722 | }\r | |
723 | \r | |
724 | /**\r | |
725 | get all SMI handler database on the SMI entry list.\r | |
726 | \r | |
727 | @param SmiEntryList a list of SMI entry.\r | |
728 | @param HandlerCategory The handler category\r | |
729 | @param Data The buffer to hold all SMI handler database\r | |
730 | @param ExpectedSize The expected size of the SMM image database\r | |
731 | \r | |
732 | @return all SMI database size on the SMI entry list.\r | |
733 | **/\r | |
734 | UINTN\r | |
735 | GetSmmSmiDatabaseData(\r | |
736 | IN LIST_ENTRY *SmiEntryList,\r | |
737 | IN UINT32 HandlerCategory,\r | |
738 | IN OUT VOID *Data,\r | |
739 | IN UINTN ExpectedSize\r | |
740 | )\r | |
741 | {\r | |
742 | SMM_CORE_SMI_DATABASE_STRUCTURE *SmiStruct;\r | |
743 | LIST_ENTRY *ListEntry;\r | |
744 | SMI_ENTRY *SmiEntry;\r | |
745 | UINTN Size;\r | |
746 | UINTN SmiHandlerSize;\r | |
747 | UINT32 SmiHandlerCount;\r | |
748 | \r | |
749 | SmiStruct = Data;\r | |
750 | Size = 0;\r | |
751 | ListEntry = SmiEntryList;\r | |
752 | for (ListEntry = ListEntry->ForwardLink;\r | |
753 | ListEntry != SmiEntryList;\r | |
754 | ListEntry = ListEntry->ForwardLink) {\r | |
755 | SmiEntry = CR(ListEntry, SMI_ENTRY, AllEntries, SMI_ENTRY_SIGNATURE);\r | |
756 | if (Size >= ExpectedSize) {\r | |
757 | return 0;\r | |
758 | }\r | |
759 | if (sizeof(SMM_CORE_SMI_DATABASE_STRUCTURE) > ExpectedSize - Size) {\r | |
760 | return 0;\r | |
761 | }\r | |
762 | \r | |
763 | SmiStruct->Header.Signature = SMM_CORE_SMI_DATABASE_SIGNATURE;\r | |
764 | SmiStruct->Header.Length = sizeof(SMM_CORE_SMI_DATABASE_STRUCTURE);\r | |
765 | SmiStruct->Header.Revision = SMM_CORE_SMI_DATABASE_REVISION;\r | |
766 | SmiStruct->HandlerCategory = HandlerCategory;\r | |
767 | CopyGuid(&SmiStruct->HandlerType, &SmiEntry->HandlerType);\r | |
768 | Size += sizeof(SMM_CORE_SMI_DATABASE_STRUCTURE);\r | |
769 | SmiHandlerSize = GetSmmSmiHandlerDataOnSmiEntry(SmiEntry, (UINT8 *)SmiStruct + SmiStruct->Header.Length, ExpectedSize - Size, &SmiHandlerCount);\r | |
770 | SmiStruct->HandlerCount = SmiHandlerCount;\r | |
771 | Size += SmiHandlerSize;\r | |
772 | SmiStruct->Header.Length += (UINT32)SmiHandlerSize;\r | |
773 | SmiStruct = (VOID *)((UINTN)SmiStruct + SmiStruct->Header.Length);\r | |
774 | }\r | |
775 | if (ExpectedSize != Size) {\r | |
776 | return 0;\r | |
777 | }\r | |
778 | return Size;\r | |
779 | }\r | |
780 | \r | |
781 | /**\r | |
782 | Get SMI handler profile database.\r | |
783 | \r | |
784 | @param Data the buffer to hold SMI handler profile database\r | |
785 | \r | |
786 | @retval EFI_SUCCESS the database is got.\r | |
787 | @retval EFI_INVALID_PARAMETER the database size mismatch.\r | |
788 | **/\r | |
789 | EFI_STATUS\r | |
790 | GetSmiHandlerProfileDatabaseData(\r | |
791 | IN OUT VOID *Data\r | |
792 | )\r | |
793 | {\r | |
794 | UINTN SmmImageDatabaseSize;\r | |
795 | UINTN SmmSmiDatabaseSize;\r | |
796 | UINTN SmmRootSmiDatabaseSize;\r | |
797 | UINTN SmmHardwareSmiDatabaseSize;\r | |
798 | \r | |
799 | DEBUG((DEBUG_VERBOSE, "GetSmiHandlerProfileDatabaseData\n"));\r | |
800 | SmmImageDatabaseSize = GetSmmImageDatabaseData(Data, mSmmImageDatabaseSize);\r | |
801 | if (SmmImageDatabaseSize != mSmmImageDatabaseSize) {\r | |
802 | DEBUG((DEBUG_ERROR, "GetSmiHandlerProfileDatabaseData - SmmImageDatabaseSize mismatch!\n"));\r | |
803 | return EFI_INVALID_PARAMETER;\r | |
804 | }\r | |
805 | SmmRootSmiDatabaseSize = GetSmmSmiDatabaseData(mSmmCoreRootSmiEntryList, SmmCoreSmiHandlerCategoryRootHandler, (UINT8 *)Data + SmmImageDatabaseSize, mSmmRootSmiDatabaseSize);\r | |
806 | if (SmmRootSmiDatabaseSize != mSmmRootSmiDatabaseSize) {\r | |
807 | DEBUG((DEBUG_ERROR, "GetSmiHandlerProfileDatabaseData - SmmRootSmiDatabaseSize mismatch!\n"));\r | |
808 | return EFI_INVALID_PARAMETER;\r | |
809 | }\r | |
810 | SmmSmiDatabaseSize = GetSmmSmiDatabaseData(mSmmCoreSmiEntryList, SmmCoreSmiHandlerCategoryGuidHandler, (UINT8 *)Data + SmmImageDatabaseSize + mSmmRootSmiDatabaseSize, mSmmSmiDatabaseSize);\r | |
811 | if (SmmSmiDatabaseSize != mSmmSmiDatabaseSize) {\r | |
812 | DEBUG((DEBUG_ERROR, "GetSmiHandlerProfileDatabaseData - SmmSmiDatabaseSize mismatch!\n"));\r | |
813 | return EFI_INVALID_PARAMETER;\r | |
814 | }\r | |
815 | SmmHardwareSmiDatabaseSize = GetSmmSmiDatabaseData(mSmmCoreHardwareSmiEntryList, SmmCoreSmiHandlerCategoryHardwareHandler, (UINT8 *)Data + SmmImageDatabaseSize + SmmRootSmiDatabaseSize + SmmSmiDatabaseSize, mSmmHardwareSmiDatabaseSize);\r | |
816 | if (SmmHardwareSmiDatabaseSize != mSmmHardwareSmiDatabaseSize) {\r | |
817 | DEBUG((DEBUG_ERROR, "GetSmiHandlerProfileDatabaseData - SmmHardwareSmiDatabaseSize mismatch!\n"));\r | |
818 | return EFI_INVALID_PARAMETER;\r | |
819 | }\r | |
820 | \r | |
821 | return EFI_SUCCESS;\r | |
822 | }\r | |
823 | \r | |
824 | /**\r | |
825 | build SMI handler profile database.\r | |
826 | **/\r | |
827 | VOID\r | |
828 | BuildSmiHandlerProfileDatabase(\r | |
829 | VOID\r | |
830 | )\r | |
831 | {\r | |
832 | EFI_STATUS Status;\r | |
833 | mSmiHandlerProfileDatabaseSize = GetSmiHandlerProfileDatabaseSize();\r | |
834 | mSmiHandlerProfileDatabase = AllocatePool(mSmiHandlerProfileDatabaseSize);\r | |
835 | if (mSmiHandlerProfileDatabase == NULL) {\r | |
836 | return;\r | |
837 | }\r | |
838 | Status = GetSmiHandlerProfileDatabaseData(mSmiHandlerProfileDatabase);\r | |
839 | if (EFI_ERROR(Status)) {\r | |
840 | FreePool(mSmiHandlerProfileDatabase);\r | |
841 | mSmiHandlerProfileDatabase = NULL;\r | |
842 | }\r | |
843 | }\r | |
844 | \r | |
845 | /**\r | |
846 | Copy SMI handler profile data.\r | |
847 | \r | |
848 | @param DataBuffer The buffer to hold SMI handler profile data.\r | |
849 | @param DataSize On input, data buffer size.\r | |
850 | On output, actual data buffer size copied.\r | |
851 | @param DataOffset On input, data buffer offset to copy.\r | |
852 | On output, next time data buffer offset to copy.\r | |
853 | \r | |
854 | **/\r | |
855 | VOID\r | |
856 | SmiHandlerProfileCopyData(\r | |
857 | OUT VOID *DataBuffer,\r | |
858 | IN OUT UINT64 *DataSize,\r | |
859 | IN OUT UINT64 *DataOffset\r | |
860 | )\r | |
861 | {\r | |
862 | if (*DataOffset >= mSmiHandlerProfileDatabaseSize) {\r | |
863 | *DataOffset = mSmiHandlerProfileDatabaseSize;\r | |
864 | return;\r | |
865 | }\r | |
866 | if (mSmiHandlerProfileDatabaseSize - *DataOffset < *DataSize) {\r | |
867 | *DataSize = mSmiHandlerProfileDatabaseSize - *DataOffset;\r | |
868 | }\r | |
869 | \r | |
870 | CopyMem(\r | |
871 | DataBuffer,\r | |
872 | (UINT8 *)mSmiHandlerProfileDatabase + *DataOffset,\r | |
873 | (UINTN)*DataSize\r | |
874 | );\r | |
875 | *DataOffset = *DataOffset + *DataSize;\r | |
876 | }\r | |
877 | \r | |
878 | /**\r | |
879 | SMI handler profile handler to get info.\r | |
880 | \r | |
881 | @param SmiHandlerProfileParameterGetInfo The parameter of SMI handler profile get info.\r | |
882 | \r | |
883 | **/\r | |
884 | VOID\r | |
885 | SmiHandlerProfileHandlerGetInfo(\r | |
886 | IN SMI_HANDLER_PROFILE_PARAMETER_GET_INFO *SmiHandlerProfileParameterGetInfo\r | |
887 | )\r | |
888 | {\r | |
889 | BOOLEAN SmiHandlerProfileRecordingStatus;\r | |
890 | \r | |
891 | SmiHandlerProfileRecordingStatus = mSmiHandlerProfileRecordingStatus;\r | |
892 | mSmiHandlerProfileRecordingStatus = FALSE;\r | |
893 | \r | |
894 | SmiHandlerProfileParameterGetInfo->DataSize = mSmiHandlerProfileDatabaseSize;\r | |
895 | SmiHandlerProfileParameterGetInfo->Header.ReturnStatus = 0;\r | |
896 | \r | |
897 | mSmiHandlerProfileRecordingStatus = SmiHandlerProfileRecordingStatus;\r | |
898 | }\r | |
899 | \r | |
900 | /**\r | |
901 | SMI handler profile handler to get data by offset.\r | |
902 | \r | |
903 | @param SmiHandlerProfileParameterGetDataByOffset The parameter of SMI handler profile get data by offset.\r | |
904 | \r | |
905 | **/\r | |
906 | VOID\r | |
907 | SmiHandlerProfileHandlerGetDataByOffset(\r | |
908 | IN SMI_HANDLER_PROFILE_PARAMETER_GET_DATA_BY_OFFSET *SmiHandlerProfileParameterGetDataByOffset\r | |
909 | )\r | |
910 | {\r | |
911 | SMI_HANDLER_PROFILE_PARAMETER_GET_DATA_BY_OFFSET SmiHandlerProfileGetDataByOffset;\r | |
912 | BOOLEAN SmiHandlerProfileRecordingStatus;\r | |
913 | \r | |
914 | SmiHandlerProfileRecordingStatus = mSmiHandlerProfileRecordingStatus;\r | |
915 | mSmiHandlerProfileRecordingStatus = FALSE;\r | |
916 | \r | |
917 | CopyMem(&SmiHandlerProfileGetDataByOffset, SmiHandlerProfileParameterGetDataByOffset, sizeof(SmiHandlerProfileGetDataByOffset));\r | |
918 | \r | |
919 | //\r | |
920 | // Sanity check\r | |
921 | //\r | |
922 | if (!SmmIsBufferOutsideSmmValid((UINTN)SmiHandlerProfileGetDataByOffset.DataBuffer, (UINTN)SmiHandlerProfileGetDataByOffset.DataSize)) {\r | |
923 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandlerGetDataByOffset: SMI handler profile get data in SMRAM or overflow!\n"));\r | |
924 | SmiHandlerProfileParameterGetDataByOffset->Header.ReturnStatus = (UINT64)(INT64)(INTN)EFI_ACCESS_DENIED;\r | |
925 | goto Done;\r | |
926 | }\r | |
927 | \r | |
928 | SmiHandlerProfileCopyData((VOID *)(UINTN)SmiHandlerProfileGetDataByOffset.DataBuffer, &SmiHandlerProfileGetDataByOffset.DataSize, &SmiHandlerProfileGetDataByOffset.DataOffset);\r | |
929 | CopyMem(SmiHandlerProfileParameterGetDataByOffset, &SmiHandlerProfileGetDataByOffset, sizeof(SmiHandlerProfileGetDataByOffset));\r | |
930 | SmiHandlerProfileParameterGetDataByOffset->Header.ReturnStatus = 0;\r | |
931 | \r | |
932 | Done:\r | |
933 | mSmiHandlerProfileRecordingStatus = SmiHandlerProfileRecordingStatus;\r | |
934 | }\r | |
935 | \r | |
936 | /**\r | |
937 | Dispatch function for a Software SMI handler.\r | |
938 | \r | |
939 | Caution: This function may receive untrusted input.\r | |
940 | Communicate buffer and buffer size are external input, so this function will do basic validation.\r | |
941 | \r | |
942 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
943 | @param Context Points to an optional handler context which was specified when the\r | |
944 | handler was registered.\r | |
945 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
946 | be conveyed from a non-SMM environment into an SMM environment.\r | |
947 | @param CommBufferSize The size of the CommBuffer.\r | |
948 | \r | |
949 | @retval EFI_SUCCESS Command is handled successfully.\r | |
950 | **/\r | |
951 | EFI_STATUS\r | |
952 | EFIAPI\r | |
953 | SmiHandlerProfileHandler(\r | |
954 | IN EFI_HANDLE DispatchHandle,\r | |
955 | IN CONST VOID *Context OPTIONAL,\r | |
956 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
957 | IN OUT UINTN *CommBufferSize OPTIONAL\r | |
958 | )\r | |
959 | {\r | |
960 | SMI_HANDLER_PROFILE_PARAMETER_HEADER *SmiHandlerProfileParameterHeader;\r | |
961 | UINTN TempCommBufferSize;\r | |
962 | \r | |
963 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler Enter\n"));\r | |
964 | \r | |
965 | if (mSmiHandlerProfileDatabase == NULL) {\r | |
966 | return EFI_SUCCESS;\r | |
967 | }\r | |
968 | \r | |
969 | //\r | |
970 | // If input is invalid, stop processing this SMI\r | |
971 | //\r | |
972 | if (CommBuffer == NULL || CommBufferSize == NULL) {\r | |
973 | return EFI_SUCCESS;\r | |
974 | }\r | |
975 | \r | |
976 | TempCommBufferSize = *CommBufferSize;\r | |
977 | \r | |
978 | if (TempCommBufferSize < sizeof(SMI_HANDLER_PROFILE_PARAMETER_HEADER)) {\r | |
979 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler: SMM communication buffer size invalid!\n"));\r | |
980 | return EFI_SUCCESS;\r | |
981 | }\r | |
982 | \r | |
983 | if (!SmmIsBufferOutsideSmmValid((UINTN)CommBuffer, TempCommBufferSize)) {\r | |
984 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler: SMM communication buffer in SMRAM or overflow!\n"));\r | |
985 | return EFI_SUCCESS;\r | |
986 | }\r | |
987 | \r | |
988 | SmiHandlerProfileParameterHeader = (SMI_HANDLER_PROFILE_PARAMETER_HEADER *)((UINTN)CommBuffer);\r | |
989 | SmiHandlerProfileParameterHeader->ReturnStatus = (UINT64)-1;\r | |
990 | \r | |
991 | switch (SmiHandlerProfileParameterHeader->Command) {\r | |
992 | case SMI_HANDLER_PROFILE_COMMAND_GET_INFO:\r | |
993 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandlerGetInfo\n"));\r | |
994 | if (TempCommBufferSize != sizeof(SMI_HANDLER_PROFILE_PARAMETER_GET_INFO)) {\r | |
995 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler: SMM communication buffer size invalid!\n"));\r | |
996 | return EFI_SUCCESS;\r | |
997 | }\r | |
998 | SmiHandlerProfileHandlerGetInfo((SMI_HANDLER_PROFILE_PARAMETER_GET_INFO *)(UINTN)CommBuffer);\r | |
999 | break;\r | |
1000 | case SMI_HANDLER_PROFILE_COMMAND_GET_DATA_BY_OFFSET:\r | |
1001 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandlerGetDataByOffset\n"));\r | |
1002 | if (TempCommBufferSize != sizeof(SMI_HANDLER_PROFILE_PARAMETER_GET_DATA_BY_OFFSET)) {\r | |
1003 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler: SMM communication buffer size invalid!\n"));\r | |
1004 | return EFI_SUCCESS;\r | |
1005 | }\r | |
1006 | SmiHandlerProfileHandlerGetDataByOffset((SMI_HANDLER_PROFILE_PARAMETER_GET_DATA_BY_OFFSET *)(UINTN)CommBuffer);\r | |
1007 | break;\r | |
1008 | default:\r | |
1009 | break;\r | |
1010 | }\r | |
1011 | \r | |
1012 | DEBUG((DEBUG_ERROR, "SmiHandlerProfileHandler Exit\n"));\r | |
1013 | \r | |
1014 | return EFI_SUCCESS;\r | |
1015 | }\r | |
1016 | \r | |
1017 | /**\r | |
1018 | Register SMI handler profile handler.\r | |
1019 | **/\r | |
1020 | VOID\r | |
1021 | RegisterSmiHandlerProfileHandler (\r | |
1022 | VOID\r | |
1023 | )\r | |
1024 | {\r | |
1025 | EFI_STATUS Status;\r | |
1026 | EFI_HANDLE DispatchHandle;\r | |
1027 | \r | |
1028 | Status = gSmst->SmiHandlerRegister (\r | |
1029 | SmiHandlerProfileHandler,\r | |
1030 | &gSmiHandlerProfileGuid,\r | |
1031 | &DispatchHandle\r | |
1032 | );\r | |
1033 | ASSERT_EFI_ERROR (Status);\r | |
1034 | \r | |
1035 | BuildSmiHandlerProfileDatabase();\r | |
1036 | }\r | |
1037 | \r | |
1038 | /**\r | |
1039 | Finds the SMI entry for the requested handler type.\r | |
1040 | \r | |
1041 | @param HandlerType The type of the interrupt\r | |
1042 | @param Create Create a new entry if not found\r | |
1043 | \r | |
1044 | @return SMI entry\r | |
1045 | **/\r | |
1046 | SMI_ENTRY *\r | |
1047 | SmmCoreFindHardwareSmiEntry (\r | |
1048 | IN EFI_GUID *HandlerType,\r | |
1049 | IN BOOLEAN Create\r | |
1050 | )\r | |
1051 | {\r | |
1052 | LIST_ENTRY *Link;\r | |
1053 | SMI_ENTRY *Item;\r | |
1054 | SMI_ENTRY *SmiEntry;\r | |
1055 | \r | |
1056 | //\r | |
1057 | // Search the SMI entry list for the matching GUID\r | |
1058 | //\r | |
1059 | SmiEntry = NULL;\r | |
1060 | for (Link = mHardwareSmiEntryList.ForwardLink;\r | |
1061 | Link != &mHardwareSmiEntryList;\r | |
1062 | Link = Link->ForwardLink) {\r | |
1063 | \r | |
1064 | Item = CR (Link, SMI_ENTRY, AllEntries, SMI_ENTRY_SIGNATURE);\r | |
1065 | if (CompareGuid (&Item->HandlerType, HandlerType)) {\r | |
1066 | //\r | |
1067 | // This is the SMI entry\r | |
1068 | //\r | |
1069 | SmiEntry = Item;\r | |
1070 | break;\r | |
1071 | }\r | |
1072 | }\r | |
1073 | \r | |
1074 | //\r | |
1075 | // If the protocol entry was not found and Create is TRUE, then\r | |
1076 | // allocate a new entry\r | |
1077 | //\r | |
1078 | if ((SmiEntry == NULL) && Create) {\r | |
1079 | SmiEntry = AllocatePool (sizeof(SMI_ENTRY));\r | |
1080 | if (SmiEntry != NULL) {\r | |
1081 | //\r | |
1082 | // Initialize new SMI entry structure\r | |
1083 | //\r | |
1084 | SmiEntry->Signature = SMI_ENTRY_SIGNATURE;\r | |
1085 | CopyGuid ((VOID *)&SmiEntry->HandlerType, HandlerType);\r | |
1086 | InitializeListHead (&SmiEntry->SmiHandlers);\r | |
1087 | \r | |
1088 | //\r | |
1089 | // Add it to SMI entry list\r | |
1090 | //\r | |
1091 | InsertTailList (&mHardwareSmiEntryList, &SmiEntry->AllEntries);\r | |
1092 | }\r | |
1093 | }\r | |
1094 | return SmiEntry;\r | |
1095 | }\r | |
1096 | \r | |
1097 | /**\r | |
1098 | Convert EFI_SMM_USB_REGISTER_CONTEXT to SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT.\r | |
1099 | \r | |
1100 | @param UsbContext A pointer to EFI_SMM_USB_REGISTER_CONTEXT\r | |
1101 | @param UsbContextSize The size of EFI_SMM_USB_REGISTER_CONTEXT in bytes\r | |
1102 | @param SmiHandlerUsbContextSize The size of SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT in bytes\r | |
1103 | \r | |
1104 | @return SmiHandlerUsbContext A pointer to SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT\r | |
1105 | **/\r | |
1106 | SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT *\r | |
1107 | ConvertSmiHandlerUsbContext (\r | |
1108 | IN EFI_SMM_USB_REGISTER_CONTEXT *UsbContext,\r | |
1109 | IN UINTN UsbContextSize,\r | |
1110 | OUT UINTN *SmiHandlerUsbContextSize\r | |
1111 | )\r | |
1112 | {\r | |
1113 | UINTN DevicePathSize;\r | |
1114 | SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT *SmiHandlerUsbContext;\r | |
1115 | \r | |
1116 | ASSERT (UsbContextSize == sizeof(EFI_SMM_USB_REGISTER_CONTEXT));\r | |
1117 | \r | |
1118 | DevicePathSize = GetDevicePathSize (UsbContext->Device);\r | |
1119 | SmiHandlerUsbContext = AllocatePool (sizeof (SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT) + DevicePathSize);\r | |
1120 | if (SmiHandlerUsbContext == NULL) {\r | |
1121 | *SmiHandlerUsbContextSize = 0;\r | |
1122 | return NULL;\r | |
1123 | }\r | |
1124 | SmiHandlerUsbContext->Type = UsbContext->Type;\r | |
1125 | SmiHandlerUsbContext->DevicePathSize = (UINT32)DevicePathSize;\r | |
1126 | CopyMem (SmiHandlerUsbContext + 1, UsbContext->Device, DevicePathSize);\r | |
1127 | *SmiHandlerUsbContextSize = sizeof (SMI_HANDLER_PROFILE_USB_REGISTER_CONTEXT) + DevicePathSize;\r | |
1128 | return SmiHandlerUsbContext;\r | |
1129 | }\r | |
1130 | \r | |
1131 | /**\r | |
1132 | Convert EFI_SMM_SW_REGISTER_CONTEXT to SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT.\r | |
1133 | \r | |
1134 | @param SwContext A pointer to EFI_SMM_SW_REGISTER_CONTEXT\r | |
1135 | @param SwContextSize The size of EFI_SMM_SW_REGISTER_CONTEXT in bytes\r | |
1136 | @param SmiHandlerSwContextSize The size of SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT in bytes\r | |
1137 | \r | |
1138 | @return SmiHandlerSwContext A pointer to SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT\r | |
1139 | **/\r | |
1140 | SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT *\r | |
1141 | ConvertSmiHandlerSwContext (\r | |
1142 | IN EFI_SMM_SW_REGISTER_CONTEXT *SwContext,\r | |
1143 | IN UINTN SwContextSize,\r | |
1144 | OUT UINTN *SmiHandlerSwContextSize\r | |
1145 | )\r | |
1146 | {\r | |
1147 | SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT *SmiHandlerSwContext;\r | |
1148 | \r | |
1149 | ASSERT (SwContextSize == sizeof(EFI_SMM_SW_REGISTER_CONTEXT));\r | |
1150 | \r | |
1151 | SmiHandlerSwContext = AllocatePool (sizeof (SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT));\r | |
1152 | if (SmiHandlerSwContext == NULL) {\r | |
1153 | *SmiHandlerSwContextSize = 0;\r | |
1154 | return NULL;\r | |
1155 | }\r | |
1156 | SmiHandlerSwContext->SwSmiInputValue = SwContext->SwSmiInputValue;\r | |
1157 | *SmiHandlerSwContextSize = sizeof (SMI_HANDLER_PROFILE_SW_REGISTER_CONTEXT);\r | |
1158 | return SmiHandlerSwContext;\r | |
1159 | }\r | |
1160 | \r | |
1161 | /**\r | |
1162 | This function is called by SmmChildDispatcher module to report\r | |
1163 | a new SMI handler is registered, to SmmCore.\r | |
1164 | \r | |
1165 | @param This The protocol instance\r | |
1166 | @param HandlerGuid The GUID to identify the type of the handler.\r | |
1167 | For the SmmChildDispatch protocol, the HandlerGuid\r | |
1168 | must be the GUID of SmmChildDispatch protocol.\r | |
1169 | @param Handler The SMI handler.\r | |
1170 | @param CallerAddress The address of the module who registers the SMI handler.\r | |
1171 | @param Context The context of the SMI handler.\r | |
1172 | For the SmmChildDispatch protocol, the Context\r | |
1173 | must match the one defined for SmmChildDispatch protocol.\r | |
1174 | @param ContextSize The size of the context in bytes.\r | |
1175 | For the SmmChildDispatch protocol, the Context\r | |
1176 | must match the one defined for SmmChildDispatch protocol.\r | |
1177 | \r | |
1178 | @retval EFI_SUCCESS The information is recorded.\r | |
1179 | @retval EFI_OUT_OF_RESOURCES There is no enough resource to record the information.\r | |
1180 | **/\r | |
1181 | EFI_STATUS\r | |
1182 | EFIAPI\r | |
1183 | SmiHandlerProfileRegisterHandler (\r | |
1184 | IN SMI_HANDLER_PROFILE_PROTOCOL *This,\r | |
1185 | IN EFI_GUID *HandlerGuid,\r | |
1186 | IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,\r | |
1187 | IN PHYSICAL_ADDRESS CallerAddress,\r | |
1188 | IN VOID *Context, OPTIONAL\r | |
1189 | IN UINTN ContextSize OPTIONAL\r | |
1190 | )\r | |
1191 | {\r | |
1192 | SMI_HANDLER *SmiHandler;\r | |
1193 | SMI_ENTRY *SmiEntry;\r | |
1194 | LIST_ENTRY *List;\r | |
1195 | \r | |
1196 | if (((ContextSize == 0) && (Context != NULL)) ||\r | |
1197 | ((ContextSize != 0) && (Context == NULL))) {\r | |
1198 | return EFI_INVALID_PARAMETER;\r | |
1199 | }\r | |
1200 | \r | |
1201 | SmiHandler = AllocateZeroPool (sizeof (SMI_HANDLER));\r | |
1202 | if (SmiHandler == NULL) {\r | |
1203 | return EFI_OUT_OF_RESOURCES;\r | |
1204 | }\r | |
1205 | \r | |
1206 | SmiHandler->Signature = SMI_HANDLER_SIGNATURE;\r | |
1207 | SmiHandler->Handler = Handler;\r | |
1208 | SmiHandler->CallerAddr = (UINTN)CallerAddress;\r | |
1209 | SmiHandler->Context = Context;\r | |
1210 | SmiHandler->ContextSize = ContextSize;\r | |
1211 | \r | |
1212 | if (Context != NULL) {\r | |
1213 | if (CompareGuid (HandlerGuid, &gEfiSmmUsbDispatch2ProtocolGuid)) {\r | |
1214 | SmiHandler->Context = ConvertSmiHandlerUsbContext (Context, ContextSize, &SmiHandler->ContextSize);\r | |
1215 | } else if (CompareGuid (HandlerGuid, &gEfiSmmSwDispatch2ProtocolGuid)) {\r | |
1216 | SmiHandler->Context = ConvertSmiHandlerSwContext (Context, ContextSize, &SmiHandler->ContextSize);\r | |
1217 | } else {\r | |
1218 | SmiHandler->Context = AllocateCopyPool (ContextSize, Context);\r | |
1219 | }\r | |
1220 | }\r | |
1221 | if (SmiHandler->Context == NULL) {\r | |
1222 | SmiHandler->ContextSize = 0;\r | |
1223 | }\r | |
1224 | \r | |
1225 | SmiEntry = SmmCoreFindHardwareSmiEntry (HandlerGuid, TRUE);\r | |
1226 | if (SmiEntry == NULL) {\r | |
1227 | if (SmiHandler->Context != NULL) {\r | |
1228 | FreePool (SmiHandler->Context);\r | |
1229 | }\r | |
1230 | FreePool (SmiHandler);\r | |
1231 | return EFI_OUT_OF_RESOURCES;\r | |
1232 | }\r | |
1233 | \r | |
1234 | List = &SmiEntry->SmiHandlers;\r | |
1235 | \r | |
1236 | SmiHandler->SmiEntry = SmiEntry;\r | |
1237 | InsertTailList (List, &SmiHandler->Link);\r | |
1238 | \r | |
1239 | return EFI_SUCCESS;\r | |
1240 | }\r | |
1241 | \r | |
1242 | /**\r | |
1243 | This function is called by SmmChildDispatcher module to report\r | |
1244 | an existing SMI handler is unregistered, to SmmCore.\r | |
1245 | \r | |
1246 | @param This The protocol instance\r | |
1247 | @param HandlerGuid The GUID to identify the type of the handler.\r | |
1248 | For the SmmChildDispatch protocol, the HandlerGuid\r | |
1249 | must be the GUID of SmmChildDispatch protocol.\r | |
1250 | @param Handler The SMI handler.\r | |
1251 | @param Context The context of the SMI handler.\r | |
1252 | If it is NOT NULL, it will be used to check what is registered.\r | |
1253 | @param ContextSize The size of the context in bytes.\r | |
1254 | If Context is NOT NULL, it will be used to check what is registered.\r | |
1255 | \r | |
1256 | @retval EFI_SUCCESS The original record is removed.\r | |
1257 | @retval EFI_NOT_FOUND There is no record for the HandlerGuid and handler.\r | |
1258 | **/\r | |
1259 | EFI_STATUS\r | |
1260 | EFIAPI\r | |
1261 | SmiHandlerProfileUnregisterHandler (\r | |
1262 | IN SMI_HANDLER_PROFILE_PROTOCOL *This,\r | |
1263 | IN EFI_GUID *HandlerGuid,\r | |
1264 | IN EFI_SMM_HANDLER_ENTRY_POINT2 Handler,\r | |
1265 | IN VOID *Context, OPTIONAL\r | |
1266 | IN UINTN ContextSize OPTIONAL\r | |
1267 | )\r | |
1268 | {\r | |
1269 | LIST_ENTRY *Link;\r | |
1270 | LIST_ENTRY *Head;\r | |
1271 | SMI_HANDLER *SmiHandler;\r | |
1272 | SMI_ENTRY *SmiEntry;\r | |
1273 | SMI_HANDLER *TargetSmiHandler;\r | |
1274 | VOID *SearchContext;\r | |
1275 | UINTN SearchContextSize;\r | |
1276 | \r | |
1277 | if (((ContextSize == 0) && (Context != NULL)) ||\r | |
1278 | ((ContextSize != 0) && (Context == NULL))) {\r | |
1279 | return EFI_INVALID_PARAMETER;\r | |
1280 | }\r | |
1281 | \r | |
1282 | SmiEntry = SmmCoreFindHardwareSmiEntry (HandlerGuid, FALSE);\r | |
1283 | if (SmiEntry == NULL) {\r | |
1284 | return EFI_NOT_FOUND;\r | |
1285 | }\r | |
1286 | \r | |
1287 | SearchContext = Context;\r | |
1288 | SearchContextSize = ContextSize;\r | |
1289 | if (Context != NULL) {\r | |
1290 | if (CompareGuid (HandlerGuid, &gEfiSmmUsbDispatch2ProtocolGuid)) {\r | |
1291 | SearchContext = ConvertSmiHandlerUsbContext (Context, ContextSize, &SearchContextSize);\r | |
1292 | } else if (CompareGuid (HandlerGuid, &gEfiSmmSwDispatch2ProtocolGuid)) {\r | |
1293 | SearchContext = ConvertSmiHandlerSwContext (Context, ContextSize, &SearchContextSize);\r | |
1294 | }\r | |
1295 | }\r | |
1296 | \r | |
1297 | TargetSmiHandler = NULL;\r | |
1298 | Head = &SmiEntry->SmiHandlers;\r | |
1299 | for (Link = Head->ForwardLink; Link != Head; Link = Link->ForwardLink) {\r | |
1300 | SmiHandler = CR (Link, SMI_HANDLER, Link, SMI_HANDLER_SIGNATURE);\r | |
1301 | if (SmiHandler->Handler == Handler) {\r | |
1302 | if ((SearchContext == NULL) ||\r | |
1303 | ((SearchContextSize == SmiHandler->ContextSize) && (CompareMem (SearchContext, SmiHandler->Context, SearchContextSize) == 0))) {\r | |
1304 | TargetSmiHandler = SmiHandler;\r | |
1305 | break;\r | |
1306 | }\r | |
1307 | }\r | |
1308 | }\r | |
1309 | \r | |
1310 | if (SearchContext != NULL) {\r | |
1311 | if (CompareGuid (HandlerGuid, &gEfiSmmUsbDispatch2ProtocolGuid)) {\r | |
1312 | FreePool (SearchContext);\r | |
1313 | }\r | |
1314 | }\r | |
1315 | \r | |
1316 | if (TargetSmiHandler == NULL) {\r | |
1317 | return EFI_NOT_FOUND;\r | |
1318 | }\r | |
1319 | SmiHandler = TargetSmiHandler;\r | |
1320 | \r | |
1321 | RemoveEntryList (&SmiHandler->Link);\r | |
1322 | if (SmiHandler->Context != NULL) {\r | |
1323 | FreePool (SmiHandler->Context);\r | |
1324 | }\r | |
1325 | FreePool (SmiHandler);\r | |
1326 | \r | |
1327 | if (IsListEmpty (&SmiEntry->SmiHandlers)) {\r | |
1328 | RemoveEntryList (&SmiEntry->AllEntries);\r | |
1329 | FreePool (SmiEntry);\r | |
1330 | }\r | |
1331 | \r | |
1332 | return EFI_SUCCESS;\r | |
1333 | }\r | |
1334 | \r | |
1335 | /**\r | |
1336 | Initialize SmiHandler profile feature.\r | |
1337 | **/\r | |
1338 | VOID\r | |
1339 | SmmCoreInitializeSmiHandlerProfile (\r | |
1340 | VOID\r | |
1341 | )\r | |
1342 | {\r | |
1343 | EFI_STATUS Status;\r | |
1344 | VOID *Registration;\r | |
1345 | EFI_HANDLE Handle;\r | |
1346 | \r | |
1347 | if ((PcdGet8 (PcdSmiHandlerProfilePropertyMask) & 0x1) != 0) {\r | |
1348 | InsertTailList (&mRootSmiEntryList, &mRootSmiEntry.AllEntries);\r | |
1349 | \r | |
1350 | Status = gSmst->SmmRegisterProtocolNotify (\r | |
1351 | &gEfiSmmReadyToLockProtocolGuid,\r | |
1352 | SmmReadyToLockInSmiHandlerProfile,\r | |
1353 | &Registration\r | |
1354 | );\r | |
1355 | ASSERT_EFI_ERROR (Status);\r | |
1356 | \r | |
1357 | Handle = NULL;\r | |
1358 | Status = gSmst->SmmInstallProtocolInterface (\r | |
1359 | &Handle,\r | |
1360 | &gSmiHandlerProfileGuid,\r | |
1361 | EFI_NATIVE_INTERFACE,\r | |
1362 | &mSmiHandlerProfile\r | |
1363 | );\r | |
1364 | ASSERT_EFI_ERROR (Status);\r | |
1365 | }\r | |
1366 | }\r | |
1367 | \r |