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e42e9404 | 1 | /** @file\r |
2 | SMM Core Main Entry Point\r | |
3 | \r | |
bb2c9ccb | 4 | Copyright (c) 2009 - 2019, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e42e9404 | 6 | \r |
7 | **/\r | |
8 | \r | |
9 | #include "PiSmmCore.h"\r | |
10 | \r | |
11 | //\r | |
12 | // Physical pointer to private structure shared between SMM IPL and the SMM Core\r | |
13 | //\r | |
14 | SMM_CORE_PRIVATE_DATA *gSmmCorePrivate;\r | |
15 | \r | |
16 | //\r | |
17 | // SMM Core global variable for SMM System Table. Only accessed as a physical structure in SMRAM.\r | |
18 | //\r | |
19 | EFI_SMM_SYSTEM_TABLE2 gSmmCoreSmst = {\r | |
20 | {\r | |
21 | SMM_SMST_SIGNATURE,\r | |
22 | EFI_SMM_SYSTEM_TABLE2_REVISION,\r | |
23 | sizeof (gSmmCoreSmst.Hdr)\r | |
24 | },\r | |
25 | NULL, // SmmFirmwareVendor\r | |
26 | 0, // SmmFirmwareRevision\r | |
27 | SmmInstallConfigurationTable,\r | |
28 | {\r | |
29 | {\r | |
1436aea4 MK |
30 | (EFI_SMM_CPU_IO2)SmmEfiNotAvailableYetArg5, // SmmMemRead\r |
31 | (EFI_SMM_CPU_IO2)SmmEfiNotAvailableYetArg5 // SmmMemWrite\r | |
e42e9404 | 32 | },\r |
33 | {\r | |
1436aea4 MK |
34 | (EFI_SMM_CPU_IO2)SmmEfiNotAvailableYetArg5, // SmmIoRead\r |
35 | (EFI_SMM_CPU_IO2)SmmEfiNotAvailableYetArg5 // SmmIoWrite\r | |
e42e9404 | 36 | }\r |
37 | },\r | |
38 | SmmAllocatePool,\r | |
39 | SmmFreePool,\r | |
40 | SmmAllocatePages,\r | |
41 | SmmFreePages,\r | |
42 | NULL, // SmmStartupThisAp\r | |
43 | 0, // CurrentlyExecutingCpu\r | |
44 | 0, // NumberOfCpus\r | |
45 | NULL, // CpuSaveStateSize\r | |
46 | NULL, // CpuSaveState\r | |
47 | 0, // NumberOfTableEntries\r | |
48 | NULL, // SmmConfigurationTable\r | |
49 | SmmInstallProtocolInterface,\r | |
50 | SmmUninstallProtocolInterface,\r | |
51 | SmmHandleProtocol,\r | |
52 | SmmRegisterProtocolNotify,\r | |
53 | SmmLocateHandle,\r | |
54 | SmmLocateProtocol,\r | |
55 | SmiManage,\r | |
56 | SmiHandlerRegister,\r | |
57 | SmiHandlerUnRegister\r | |
58 | };\r | |
59 | \r | |
60 | //\r | |
61 | // Flag to determine if the platform has performed a legacy boot.\r | |
d1102dba | 62 | // If this flag is TRUE, then the runtime code and runtime data associated with the\r |
53ec4d7f | 63 | // SMM IPL are converted to free memory, so the SMM Core must guarantee that is\r |
e42e9404 | 64 | // does not touch of the code/data associated with the SMM IPL if this flag is TRUE.\r |
65 | //\r | |
66 | BOOLEAN mInLegacyBoot = FALSE;\r | |
67 | \r | |
7b9b55b2 SZ |
68 | //\r |
69 | // Flag to determine if it is during S3 resume.\r | |
70 | // It will be set in S3 entry callback and cleared at EndOfS3Resume.\r | |
71 | //\r | |
72 | BOOLEAN mDuringS3Resume = FALSE;\r | |
73 | \r | |
bb2c9ccb ED |
74 | //\r |
75 | // Flag to determine if platform enabled S3.\r | |
76 | // Get the value from PcdAcpiS3Enable.\r | |
77 | //\r | |
78 | BOOLEAN mAcpiS3Enable = FALSE;\r | |
79 | \r | |
e42e9404 | 80 | //\r |
81 | // Table of SMI Handlers that are registered by the SMM Core when it is initialized\r | |
82 | //\r | |
83 | SMM_CORE_SMI_HANDLERS mSmmCoreSmiHandlers[] = {\r | |
1436aea4 MK |
84 | { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },\r |
85 | { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE },\r | |
86 | { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },\r | |
87 | { SmmExitBootServicesHandler, &gEfiEventExitBootServicesGuid, NULL, FALSE },\r | |
88 | { SmmReadyToBootHandler, &gEfiEventReadyToBootGuid, NULL, FALSE },\r | |
89 | { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, TRUE },\r | |
90 | { NULL, NULL, NULL, FALSE }\r | |
bb2c9ccb ED |
91 | };\r |
92 | \r | |
93 | //\r | |
94 | // Table of SMI Handlers that are registered by the SMM Core when it is initialized\r | |
95 | //\r | |
96 | SMM_CORE_SMI_HANDLERS mSmmCoreS3SmiHandlers[] = {\r | |
1436aea4 MK |
97 | { SmmS3SmmInitDoneHandler, &gEdkiiS3SmmInitDoneGuid, NULL, FALSE },\r |
98 | { SmmEndOfS3ResumeHandler, &gEdkiiEndOfS3ResumeGuid, NULL, FALSE },\r | |
99 | { NULL, NULL, NULL, FALSE }\r | |
e42e9404 | 100 | };\r |
101 | \r | |
1436aea4 MK |
102 | UINTN mFullSmramRangeCount;\r |
103 | EFI_SMRAM_DESCRIPTOR *mFullSmramRanges;\r | |
84edd20b | 104 | \r |
1436aea4 | 105 | EFI_SMM_DRIVER_ENTRY *mSmmCoreDriverEntry;\r |
285a682c | 106 | \r |
1436aea4 | 107 | EFI_LOADED_IMAGE_PROTOCOL *mSmmCoreLoadedImage;\r |
0b256fb1 | 108 | \r |
e42e9404 | 109 | /**\r |
110 | Place holder function until all the SMM System Table Service are available.\r | |
111 | \r | |
112 | Note: This function is only used by SMRAM invocation. It is never used by DXE invocation.\r | |
113 | \r | |
114 | @param Arg1 Undefined\r | |
115 | @param Arg2 Undefined\r | |
116 | @param Arg3 Undefined\r | |
117 | @param Arg4 Undefined\r | |
118 | @param Arg5 Undefined\r | |
119 | \r | |
120 | @return EFI_NOT_AVAILABLE_YET\r | |
121 | \r | |
122 | **/\r | |
123 | EFI_STATUS\r | |
124 | EFIAPI\r | |
125 | SmmEfiNotAvailableYetArg5 (\r | |
1436aea4 MK |
126 | UINTN Arg1,\r |
127 | UINTN Arg2,\r | |
128 | UINTN Arg3,\r | |
129 | UINTN Arg4,\r | |
130 | UINTN Arg5\r | |
e42e9404 | 131 | )\r |
132 | {\r | |
133 | //\r | |
134 | // This function should never be executed. If it does, then the architectural protocols\r | |
135 | // have not been designed correctly.\r | |
136 | //\r | |
137 | return EFI_NOT_AVAILABLE_YET;\r | |
138 | }\r | |
139 | \r | |
140 | /**\r | |
141 | Software SMI handler that is called when a Legacy Boot event is signalled. The SMM\r | |
d1102dba | 142 | Core uses this signal to know that a Legacy Boot has been performed and that\r |
e42e9404 | 143 | gSmmCorePrivate that is shared between the UEFI and SMM execution environments can\r |
144 | not be accessed from SMM anymore since that structure is considered free memory by\r | |
53ec4d7f SZ |
145 | a legacy OS. Then the SMM Core also install SMM Legacy Boot protocol to notify SMM\r |
146 | driver that system enter legacy boot.\r | |
e42e9404 | 147 | \r |
148 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
149 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
150 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
151 | be conveyed from a non-SMM environment into an SMM environment.\r | |
152 | @param CommBufferSize The size of the CommBuffer.\r | |
153 | \r | |
154 | @return Status Code\r | |
155 | \r | |
156 | **/\r | |
157 | EFI_STATUS\r | |
158 | EFIAPI\r | |
159 | SmmLegacyBootHandler (\r | |
160 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
161 | IN CONST VOID *Context OPTIONAL,\r |
162 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
e42e9404 | 163 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
164 | )\r | |
165 | {\r | |
1436aea4 MK |
166 | EFI_STATUS Status;\r |
167 | EFI_HANDLE SmmHandle;\r | |
168 | UINTN Index;\r | |
53ec4d7f SZ |
169 | \r |
170 | //\r | |
171 | // Install SMM Legacy Boot protocol.\r | |
172 | //\r | |
173 | SmmHandle = NULL;\r | |
1436aea4 MK |
174 | Status = SmmInstallProtocolInterface (\r |
175 | &SmmHandle,\r | |
176 | &gEdkiiSmmLegacyBootProtocolGuid,\r | |
177 | EFI_NATIVE_INTERFACE,\r | |
178 | NULL\r | |
179 | );\r | |
53ec4d7f | 180 | \r |
e42e9404 | 181 | mInLegacyBoot = TRUE;\r |
53ec4d7f SZ |
182 | \r |
183 | SmiHandlerUnRegister (DispatchHandle);\r | |
184 | \r | |
c6ded48c SZ |
185 | //\r |
186 | // It is legacy boot, unregister ExitBootService SMI handler.\r | |
187 | //\r | |
188 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
189 | if (CompareGuid (mSmmCoreSmiHandlers[Index].HandlerType, &gEfiEventExitBootServicesGuid)) {\r | |
190 | SmiHandlerUnRegister (mSmmCoreSmiHandlers[Index].DispatchHandle);\r | |
191 | break;\r | |
192 | }\r | |
193 | }\r | |
194 | \r | |
53ec4d7f SZ |
195 | return Status;\r |
196 | }\r | |
197 | \r | |
198 | /**\r | |
199 | Software SMI handler that is called when an Exit Boot Services event is signalled.\r | |
200 | Then the SMM Core also install SMM Exit Boot Services protocol to notify SMM driver\r | |
201 | that system enter exit boot services.\r | |
202 | \r | |
203 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
204 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
205 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
206 | be conveyed from a non-SMM environment into an SMM environment.\r | |
207 | @param CommBufferSize The size of the CommBuffer.\r | |
208 | \r | |
209 | @return Status Code\r | |
210 | \r | |
211 | **/\r | |
212 | EFI_STATUS\r | |
213 | EFIAPI\r | |
214 | SmmExitBootServicesHandler (\r | |
215 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
216 | IN CONST VOID *Context OPTIONAL,\r |
217 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
53ec4d7f SZ |
218 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
219 | )\r | |
220 | {\r | |
1436aea4 MK |
221 | EFI_STATUS Status;\r |
222 | EFI_HANDLE SmmHandle;\r | |
223 | UINTN Index;\r | |
53ec4d7f SZ |
224 | \r |
225 | //\r | |
226 | // Install SMM Exit Boot Services protocol.\r | |
227 | //\r | |
228 | SmmHandle = NULL;\r | |
1436aea4 MK |
229 | Status = SmmInstallProtocolInterface (\r |
230 | &SmmHandle,\r | |
231 | &gEdkiiSmmExitBootServicesProtocolGuid,\r | |
232 | EFI_NATIVE_INTERFACE,\r | |
233 | NULL\r | |
234 | );\r | |
53ec4d7f SZ |
235 | \r |
236 | SmiHandlerUnRegister (DispatchHandle);\r | |
237 | \r | |
c6ded48c SZ |
238 | //\r |
239 | // It is UEFI boot, unregister LegacyBoot SMI handler.\r | |
240 | //\r | |
241 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
242 | if (CompareGuid (mSmmCoreSmiHandlers[Index].HandlerType, &gEfiEventLegacyBootGuid)) {\r | |
243 | SmiHandlerUnRegister (mSmmCoreSmiHandlers[Index].DispatchHandle);\r | |
244 | break;\r | |
245 | }\r | |
246 | }\r | |
247 | \r | |
53ec4d7f SZ |
248 | return Status;\r |
249 | }\r | |
250 | \r | |
7b9b55b2 SZ |
251 | /**\r |
252 | Main entry point for an SMM handler dispatch or communicate-based callback.\r | |
253 | \r | |
254 | @param[in] DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
255 | @param[in] Context Points to an optional handler context which was specified when the\r | |
256 | handler was registered.\r | |
257 | @param[in,out] CommBuffer A pointer to a collection of data in memory that will\r | |
258 | be conveyed from a non-SMM environment into an SMM environment.\r | |
259 | @param[in,out] CommBufferSize The size of the CommBuffer.\r | |
260 | \r | |
261 | @retval EFI_SUCCESS The interrupt was handled and quiesced. No other handlers\r | |
262 | should still be called.\r | |
263 | @retval EFI_WARN_INTERRUPT_SOURCE_QUIESCED The interrupt has been quiesced but other handlers should\r | |
264 | still be called.\r | |
265 | @retval EFI_WARN_INTERRUPT_SOURCE_PENDING The interrupt is still pending and other handlers should still\r | |
266 | be called.\r | |
267 | @retval EFI_INTERRUPT_PENDING The interrupt could not be quiesced.\r | |
268 | **/\r | |
269 | EFI_STATUS\r | |
270 | EFIAPI\r | |
271 | SmmS3EntryCallBack (\r | |
1436aea4 MK |
272 | IN EFI_HANDLE DispatchHandle,\r |
273 | IN CONST VOID *Context OPTIONAL,\r | |
274 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
275 | IN OUT UINTN *CommBufferSize OPTIONAL\r | |
7b9b55b2 SZ |
276 | )\r |
277 | {\r | |
278 | mDuringS3Resume = TRUE;\r | |
279 | return EFI_SUCCESS;\r | |
280 | }\r | |
281 | \r | |
53ec4d7f SZ |
282 | /**\r |
283 | Software SMI handler that is called when an Ready To Boot event is signalled.\r | |
284 | Then the SMM Core also install SMM Ready To Boot protocol to notify SMM driver\r | |
285 | that system enter ready to boot.\r | |
286 | \r | |
287 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
288 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
289 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
290 | be conveyed from a non-SMM environment into an SMM environment.\r | |
291 | @param CommBufferSize The size of the CommBuffer.\r | |
292 | \r | |
293 | @return Status Code\r | |
294 | \r | |
295 | **/\r | |
296 | EFI_STATUS\r | |
297 | EFIAPI\r | |
298 | SmmReadyToBootHandler (\r | |
299 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
300 | IN CONST VOID *Context OPTIONAL,\r |
301 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
53ec4d7f SZ |
302 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
303 | )\r | |
304 | {\r | |
1436aea4 MK |
305 | EFI_STATUS Status;\r |
306 | EFI_HANDLE SmmHandle;\r | |
53ec4d7f SZ |
307 | \r |
308 | //\r | |
309 | // Install SMM Ready To Boot protocol.\r | |
310 | //\r | |
311 | SmmHandle = NULL;\r | |
1436aea4 MK |
312 | Status = SmmInstallProtocolInterface (\r |
313 | &SmmHandle,\r | |
314 | &gEdkiiSmmReadyToBootProtocolGuid,\r | |
315 | EFI_NATIVE_INTERFACE,\r | |
316 | NULL\r | |
317 | );\r | |
53ec4d7f SZ |
318 | \r |
319 | SmiHandlerUnRegister (DispatchHandle);\r | |
320 | \r | |
b36acb21 | 321 | return Status;\r |
e42e9404 | 322 | }\r |
323 | \r | |
324 | /**\r | |
325 | Software SMI handler that is called when the DxeSmmReadyToLock protocol is added\r | |
d1102dba LG |
326 | or if gEfiEventReadyToBootGuid is signalled. This function unregisters the\r |
327 | Software SMIs that are nor required after SMRAM is locked and installs the\r | |
328 | SMM Ready To Lock Protocol so SMM Drivers are informed that SMRAM is about\r | |
2048c585 | 329 | to be locked. It also verifies the SMM CPU I/O 2 Protocol has been installed\r |
e42e9404 | 330 | and NULLs gBS and gST because they can not longer be used after SMRAM is locked.\r |
331 | \r | |
332 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
333 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
334 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
335 | be conveyed from a non-SMM environment into an SMM environment.\r | |
336 | @param CommBufferSize The size of the CommBuffer.\r | |
337 | \r | |
338 | @return Status Code\r | |
339 | \r | |
340 | **/\r | |
341 | EFI_STATUS\r | |
342 | EFIAPI\r | |
343 | SmmReadyToLockHandler (\r | |
344 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
345 | IN CONST VOID *Context OPTIONAL,\r |
346 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
e42e9404 | 347 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
348 | )\r | |
349 | {\r | |
350 | EFI_STATUS Status;\r | |
351 | UINTN Index;\r | |
352 | EFI_HANDLE SmmHandle;\r | |
353 | VOID *Interface;\r | |
354 | \r | |
355 | //\r | |
356 | // Unregister SMI Handlers that are no required after the SMM driver dispatch is stopped\r | |
357 | //\r | |
358 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
359 | if (mSmmCoreSmiHandlers[Index].UnRegister) {\r | |
360 | SmiHandlerUnRegister (mSmmCoreSmiHandlers[Index].DispatchHandle);\r | |
361 | }\r | |
362 | }\r | |
363 | \r | |
364 | //\r | |
365 | // Install SMM Ready to lock protocol\r | |
366 | //\r | |
367 | SmmHandle = NULL;\r | |
1436aea4 MK |
368 | Status = SmmInstallProtocolInterface (\r |
369 | &SmmHandle,\r | |
370 | &gEfiSmmReadyToLockProtocolGuid,\r | |
371 | EFI_NATIVE_INTERFACE,\r | |
372 | NULL\r | |
373 | );\r | |
e42e9404 | 374 | \r |
375 | //\r | |
4be497df | 376 | // Make sure SMM CPU I/O 2 Protocol has been installed into the handle database\r |
e42e9404 | 377 | //\r |
378 | Status = SmmLocateProtocol (&gEfiSmmCpuIo2ProtocolGuid, NULL, &Interface);\r | |
379 | \r | |
380 | //\r | |
381 | // Print a message on a debug build if the SMM CPU I/O 2 Protocol is not installed\r | |
382 | //\r | |
383 | DEBUG_CODE_BEGIN ();\r | |
1436aea4 MK |
384 | if (EFI_ERROR (Status)) {\r |
385 | DEBUG ((DEBUG_ERROR, "\nSMM: SmmCpuIo Arch Protocol not present!!\n"));\r | |
386 | }\r | |
387 | \r | |
e42e9404 | 388 | DEBUG_CODE_END ();\r |
389 | \r | |
390 | //\r | |
391 | // Assert if the CPU I/O 2 Protocol is not installed\r | |
392 | //\r | |
393 | ASSERT_EFI_ERROR (Status);\r | |
394 | \r | |
395 | //\r | |
396 | // Display any drivers that were not dispatched because dependency expression\r | |
397 | // evaluated to false if this is a debug build\r | |
398 | //\r | |
399 | DEBUG_CODE_BEGIN ();\r | |
1436aea4 | 400 | SmmDisplayDiscoveredNotDispatched ();\r |
e42e9404 | 401 | DEBUG_CODE_END ();\r |
402 | \r | |
403 | //\r | |
404 | // Not allowed to use gST or gBS after lock\r | |
405 | //\r | |
406 | gST = NULL;\r | |
407 | gBS = NULL;\r | |
408 | \r | |
84edd20b SZ |
409 | SmramProfileReadyToLock ();\r |
410 | \r | |
e42e9404 | 411 | return Status;\r |
412 | }\r | |
413 | \r | |
46ece1ff JY |
414 | /**\r |
415 | Software SMI handler that is called when the EndOfDxe event is signalled.\r | |
416 | This function installs the SMM EndOfDxe Protocol so SMM Drivers are informed that\r | |
417 | platform code will invoke 3rd part code.\r | |
418 | \r | |
419 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
420 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
421 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
422 | be conveyed from a non-SMM environment into an SMM environment.\r | |
423 | @param CommBufferSize The size of the CommBuffer.\r | |
424 | \r | |
425 | @return Status Code\r | |
426 | \r | |
427 | **/\r | |
428 | EFI_STATUS\r | |
429 | EFIAPI\r | |
430 | SmmEndOfDxeHandler (\r | |
431 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
432 | IN CONST VOID *Context OPTIONAL,\r |
433 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
46ece1ff JY |
434 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
435 | )\r | |
436 | {\r | |
1436aea4 MK |
437 | EFI_STATUS Status;\r |
438 | EFI_HANDLE SmmHandle;\r | |
439 | EFI_SMM_SX_DISPATCH2_PROTOCOL *SxDispatch;\r | |
440 | EFI_SMM_SX_REGISTER_CONTEXT EntryRegisterContext;\r | |
441 | EFI_HANDLE S3EntryHandle;\r | |
46ece1ff | 442 | \r |
87000d77 | 443 | DEBUG ((DEBUG_INFO, "SmmEndOfDxeHandler\n"));\r |
b36acb21 | 444 | \r |
46ece1ff JY |
445 | //\r |
446 | // Install SMM EndOfDxe protocol\r | |
447 | //\r | |
448 | SmmHandle = NULL;\r | |
1436aea4 MK |
449 | Status = SmmInstallProtocolInterface (\r |
450 | &SmmHandle,\r | |
451 | &gEfiSmmEndOfDxeProtocolGuid,\r | |
452 | EFI_NATIVE_INTERFACE,\r | |
453 | NULL\r | |
454 | );\r | |
b36acb21 | 455 | \r |
bb2c9ccb | 456 | if (mAcpiS3Enable) {\r |
b36acb21 | 457 | //\r |
bb2c9ccb | 458 | // Locate SmmSxDispatch2 protocol.\r |
b36acb21 | 459 | //\r |
bb2c9ccb ED |
460 | Status = SmmLocateProtocol (\r |
461 | &gEfiSmmSxDispatch2ProtocolGuid,\r | |
462 | NULL,\r | |
463 | (VOID **)&SxDispatch\r | |
464 | );\r | |
465 | if (!EFI_ERROR (Status) && (SxDispatch != NULL)) {\r | |
466 | //\r | |
467 | // Register a S3 entry callback function to\r | |
468 | // determine if it will be during S3 resume.\r | |
469 | //\r | |
470 | EntryRegisterContext.Type = SxS3;\r | |
471 | EntryRegisterContext.Phase = SxEntry;\r | |
1436aea4 MK |
472 | Status = SxDispatch->Register (\r |
473 | SxDispatch,\r | |
474 | SmmS3EntryCallBack,\r | |
475 | &EntryRegisterContext,\r | |
476 | &S3EntryHandle\r | |
477 | );\r | |
bb2c9ccb ED |
478 | ASSERT_EFI_ERROR (Status);\r |
479 | }\r | |
b36acb21 SZ |
480 | }\r |
481 | \r | |
482 | return EFI_SUCCESS;\r | |
46ece1ff JY |
483 | }\r |
484 | \r | |
1bae3e0e SZ |
485 | /**\r |
486 | Software SMI handler that is called when the S3SmmInitDone signal is triggered.\r | |
487 | This function installs the SMM S3SmmInitDone Protocol so SMM Drivers are informed that\r | |
488 | S3 SMM initialization has been done.\r | |
489 | \r | |
490 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
491 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
492 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
493 | be conveyed from a non-SMM environment into an SMM environment.\r | |
494 | @param CommBufferSize The size of the CommBuffer.\r | |
495 | \r | |
496 | @return Status Code\r | |
497 | \r | |
498 | **/\r | |
499 | EFI_STATUS\r | |
500 | EFIAPI\r | |
501 | SmmS3SmmInitDoneHandler (\r | |
502 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
503 | IN CONST VOID *Context OPTIONAL,\r |
504 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
1bae3e0e SZ |
505 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
506 | )\r | |
507 | {\r | |
508 | EFI_STATUS Status;\r | |
509 | EFI_HANDLE SmmHandle;\r | |
510 | \r | |
511 | DEBUG ((DEBUG_INFO, "SmmS3SmmInitDoneHandler\n"));\r | |
512 | \r | |
513 | if (!mDuringS3Resume) {\r | |
514 | DEBUG ((DEBUG_ERROR, "It is not during S3 resume\n"));\r | |
515 | return EFI_SUCCESS;\r | |
516 | }\r | |
517 | \r | |
518 | //\r | |
519 | // Install SMM S3SmmInitDone protocol\r | |
520 | //\r | |
521 | SmmHandle = NULL;\r | |
1436aea4 MK |
522 | Status = SmmInstallProtocolInterface (\r |
523 | &SmmHandle,\r | |
524 | &gEdkiiS3SmmInitDoneGuid,\r | |
525 | EFI_NATIVE_INTERFACE,\r | |
526 | NULL\r | |
527 | );\r | |
1bae3e0e SZ |
528 | ASSERT_EFI_ERROR (Status);\r |
529 | \r | |
530 | //\r | |
531 | // Uninstall the protocol here because the comsumer just hook the\r | |
532 | // installation event.\r | |
533 | //\r | |
534 | Status = SmmUninstallProtocolInterface (\r | |
1436aea4 MK |
535 | SmmHandle,\r |
536 | &gEdkiiS3SmmInitDoneGuid,\r | |
537 | NULL\r | |
538 | );\r | |
1bae3e0e SZ |
539 | ASSERT_EFI_ERROR (Status);\r |
540 | \r | |
541 | return Status;\r | |
542 | }\r | |
543 | \r | |
d76c2da8 | 544 | /**\r |
a85e7127 | 545 | Software SMI handler that is called when the EndOfS3Resume signal is triggered.\r |
d76c2da8 ED |
546 | This function installs the SMM EndOfS3Resume Protocol so SMM Drivers are informed that\r |
547 | S3 resume has finished.\r | |
548 | \r | |
549 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
550 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
551 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
552 | be conveyed from a non-SMM environment into an SMM environment.\r | |
553 | @param CommBufferSize The size of the CommBuffer.\r | |
554 | \r | |
555 | @return Status Code\r | |
556 | \r | |
557 | **/\r | |
558 | EFI_STATUS\r | |
559 | EFIAPI\r | |
560 | SmmEndOfS3ResumeHandler (\r | |
561 | IN EFI_HANDLE DispatchHandle,\r | |
e3917e22 MK |
562 | IN CONST VOID *Context OPTIONAL,\r |
563 | IN OUT VOID *CommBuffer OPTIONAL,\r | |
d76c2da8 ED |
564 | IN OUT UINTN *CommBufferSize OPTIONAL\r |
565 | )\r | |
566 | {\r | |
567 | EFI_STATUS Status;\r | |
568 | EFI_HANDLE SmmHandle;\r | |
569 | \r | |
7b9b55b2 SZ |
570 | DEBUG ((DEBUG_INFO, "SmmEndOfS3ResumeHandler\n"));\r |
571 | \r | |
572 | if (!mDuringS3Resume) {\r | |
573 | DEBUG ((DEBUG_ERROR, "It is not during S3 resume\n"));\r | |
574 | return EFI_SUCCESS;\r | |
575 | }\r | |
d76c2da8 ED |
576 | \r |
577 | //\r | |
578 | // Install SMM EndOfS3Resume protocol\r | |
579 | //\r | |
580 | SmmHandle = NULL;\r | |
1436aea4 MK |
581 | Status = SmmInstallProtocolInterface (\r |
582 | &SmmHandle,\r | |
583 | &gEdkiiEndOfS3ResumeGuid,\r | |
584 | EFI_NATIVE_INTERFACE,\r | |
585 | NULL\r | |
586 | );\r | |
d76c2da8 ED |
587 | ASSERT_EFI_ERROR (Status);\r |
588 | \r | |
589 | //\r | |
4be497df | 590 | // Uninstall the protocol here because the consumer just hook the\r |
d76c2da8 ED |
591 | // installation event.\r |
592 | //\r | |
593 | Status = SmmUninstallProtocolInterface (\r | |
1436aea4 MK |
594 | SmmHandle,\r |
595 | &gEdkiiEndOfS3ResumeGuid,\r | |
596 | NULL\r | |
597 | );\r | |
d76c2da8 ED |
598 | ASSERT_EFI_ERROR (Status);\r |
599 | \r | |
7b9b55b2 | 600 | mDuringS3Resume = FALSE;\r |
d76c2da8 ED |
601 | return Status;\r |
602 | }\r | |
603 | \r | |
3b657538 SZ |
604 | /**\r |
605 | Determine if two buffers overlap in memory.\r | |
606 | \r | |
607 | @param[in] Buff1 Pointer to first buffer\r | |
608 | @param[in] Size1 Size of Buff1\r | |
609 | @param[in] Buff2 Pointer to second buffer\r | |
610 | @param[in] Size2 Size of Buff2\r | |
611 | \r | |
612 | @retval TRUE Buffers overlap in memory.\r | |
cab1f025 | 613 | @retval TRUE Math error. Prevents potential math over and underflows.\r |
3b657538 SZ |
614 | @retval FALSE Buffer doesn't overlap.\r |
615 | \r | |
616 | **/\r | |
617 | BOOLEAN\r | |
618 | InternalIsBufferOverlapped (\r | |
1436aea4 MK |
619 | IN UINT8 *Buff1,\r |
620 | IN UINTN Size1,\r | |
621 | IN UINT8 *Buff2,\r | |
622 | IN UINTN Size2\r | |
3b657538 SZ |
623 | )\r |
624 | {\r | |
cab1f025 MD |
625 | UINTN End1;\r |
626 | UINTN End2;\r | |
627 | BOOLEAN IsOverUnderflow1;\r | |
628 | BOOLEAN IsOverUnderflow2;\r | |
629 | \r | |
630 | // Check for over or underflow\r | |
631 | IsOverUnderflow1 = EFI_ERROR (SafeUintnAdd ((UINTN)Buff1, Size1, &End1));\r | |
632 | IsOverUnderflow2 = EFI_ERROR (SafeUintnAdd ((UINTN)Buff2, Size2, &End2));\r | |
633 | \r | |
634 | if (IsOverUnderflow1 || IsOverUnderflow2) {\r | |
635 | return TRUE;\r | |
636 | }\r | |
637 | \r | |
3b657538 SZ |
638 | //\r |
639 | // If buff1's end is less than the start of buff2, then it's ok.\r | |
640 | // Also, if buff1's start is beyond buff2's end, then it's ok.\r | |
641 | //\r | |
cab1f025 | 642 | if ((End1 <= (UINTN)Buff2) || ((UINTN)Buff1 >= End2)) {\r |
3b657538 SZ |
643 | return FALSE;\r |
644 | }\r | |
645 | \r | |
646 | return TRUE;\r | |
647 | }\r | |
648 | \r | |
e42e9404 | 649 | /**\r |
650 | The main entry point to SMM Foundation.\r | |
651 | \r | |
652 | Note: This function is only used by SMRAM invocation. It is never used by DXE invocation.\r | |
653 | \r | |
654 | @param SmmEntryContext Processor information and functionality\r | |
655 | needed by SMM Foundation.\r | |
656 | \r | |
657 | **/\r | |
658 | VOID\r | |
659 | EFIAPI\r | |
660 | SmmEntryPoint (\r | |
661 | IN CONST EFI_SMM_ENTRY_CONTEXT *SmmEntryContext\r | |
1436aea4 | 662 | )\r |
e42e9404 | 663 | {\r |
664 | EFI_STATUS Status;\r | |
665 | EFI_SMM_COMMUNICATE_HEADER *CommunicateHeader;\r | |
a25cb9f6 | 666 | BOOLEAN InLegacyBoot;\r |
3b657538 | 667 | BOOLEAN IsOverlapped;\r |
cab1f025 | 668 | BOOLEAN IsOverUnderflow;\r |
eaae7b33 JF |
669 | VOID *CommunicationBuffer;\r |
670 | UINTN BufferSize;\r | |
e42e9404 | 671 | \r |
672 | //\r | |
229fd9e7 | 673 | // Update SMST with contents of the SmmEntryContext structure\r |
e42e9404 | 674 | //\r |
229fd9e7 MK |
675 | gSmmCoreSmst.SmmStartupThisAp = SmmEntryContext->SmmStartupThisAp;\r |
676 | gSmmCoreSmst.CurrentlyExecutingCpu = SmmEntryContext->CurrentlyExecutingCpu;\r | |
677 | gSmmCoreSmst.NumberOfCpus = SmmEntryContext->NumberOfCpus;\r | |
678 | gSmmCoreSmst.CpuSaveStateSize = SmmEntryContext->CpuSaveStateSize;\r | |
679 | gSmmCoreSmst.CpuSaveState = SmmEntryContext->CpuSaveState;\r | |
e42e9404 | 680 | \r |
495797c5 | 681 | //\r |
682 | // Call platform hook before Smm Dispatch\r | |
683 | //\r | |
684 | PlatformHookBeforeSmmDispatch ();\r | |
685 | \r | |
e63da9f0 JW |
686 | //\r |
687 | // Call memory management hook function\r | |
688 | //\r | |
689 | SmmEntryPointMemoryManagementHook ();\r | |
690 | \r | |
e42e9404 | 691 | //\r |
4be497df | 692 | // If a legacy boot has occurred, then make sure gSmmCorePrivate is not accessed\r |
e42e9404 | 693 | //\r |
a25cb9f6 | 694 | InLegacyBoot = mInLegacyBoot;\r |
695 | if (!InLegacyBoot) {\r | |
e42e9404 | 696 | //\r |
9fa90bb4 | 697 | // Mark the InSmm flag as TRUE, it will be used by SmmBase2 protocol\r |
e42e9404 | 698 | //\r |
9fa90bb4 | 699 | gSmmCorePrivate->InSmm = TRUE;\r |
e42e9404 | 700 | \r |
701 | //\r | |
d1102dba | 702 | // Check to see if this is a Synchronous SMI sent through the SMM Communication\r |
9fa90bb4 | 703 | // Protocol or an Asynchronous SMI\r |
e42e9404 | 704 | //\r |
eaae7b33 JF |
705 | CommunicationBuffer = gSmmCorePrivate->CommunicationBuffer;\r |
706 | BufferSize = gSmmCorePrivate->BufferSize;\r | |
707 | if (CommunicationBuffer != NULL) {\r | |
9fa90bb4 | 708 | //\r |
709 | // Synchronous SMI for SMM Core or request from Communicate protocol\r | |
710 | //\r | |
3b657538 | 711 | IsOverlapped = InternalIsBufferOverlapped (\r |
1436aea4 | 712 | (UINT8 *)CommunicationBuffer,\r |
eaae7b33 | 713 | BufferSize,\r |
1436aea4 | 714 | (UINT8 *)gSmmCorePrivate,\r |
3b657538 SZ |
715 | sizeof (*gSmmCorePrivate)\r |
716 | );\r | |
cab1f025 MD |
717 | //\r |
718 | // Check for over or underflows\r | |
719 | //\r | |
720 | IsOverUnderflow = EFI_ERROR (SafeUintnSub (BufferSize, OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data), &BufferSize));\r | |
721 | \r | |
722 | if (!SmmIsBufferOutsideSmmValid ((UINTN)CommunicationBuffer, BufferSize) ||\r | |
723 | IsOverlapped || IsOverUnderflow)\r | |
724 | {\r | |
3720ee6d | 725 | //\r |
3b657538 SZ |
726 | // If CommunicationBuffer is not in valid address scope,\r |
727 | // or there is overlap between gSmmCorePrivate and CommunicationBuffer,\r | |
cab1f025 | 728 | // or there is over or underflow,\r |
3b657538 | 729 | // return EFI_INVALID_PARAMETER\r |
3720ee6d JF |
730 | //\r |
731 | gSmmCorePrivate->CommunicationBuffer = NULL;\r | |
1436aea4 | 732 | gSmmCorePrivate->ReturnStatus = EFI_ACCESS_DENIED;\r |
3720ee6d | 733 | } else {\r |
eaae7b33 | 734 | CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)CommunicationBuffer;\r |
cab1f025 MD |
735 | // BufferSize was updated by the SafeUintnSub() call above.\r |
736 | Status = SmiManage (\r | |
737 | &CommunicateHeader->HeaderGuid,\r | |
738 | NULL,\r | |
739 | CommunicateHeader->Data,\r | |
740 | &BufferSize\r | |
741 | );\r | |
3720ee6d JF |
742 | //\r |
743 | // Update CommunicationBuffer, BufferSize and ReturnStatus\r | |
744 | // Communicate service finished, reset the pointer to CommBuffer to NULL\r | |
745 | //\r | |
1436aea4 | 746 | gSmmCorePrivate->BufferSize = BufferSize + OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r |
3720ee6d | 747 | gSmmCorePrivate->CommunicationBuffer = NULL;\r |
1436aea4 | 748 | gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;\r |
3720ee6d | 749 | }\r |
9fa90bb4 | 750 | }\r |
e42e9404 | 751 | }\r |
9fa90bb4 | 752 | \r |
753 | //\r | |
754 | // Process Asynchronous SMI sources\r | |
755 | //\r | |
756 | SmiManage (NULL, NULL, NULL, NULL);\r | |
d1102dba | 757 | \r |
495797c5 | 758 | //\r |
759 | // Call platform hook after Smm Dispatch\r | |
760 | //\r | |
761 | PlatformHookAfterSmmDispatch ();\r | |
e42e9404 | 762 | \r |
763 | //\r | |
4be497df | 764 | // If a legacy boot has occurred, then make sure gSmmCorePrivate is not accessed\r |
e42e9404 | 765 | //\r |
a25cb9f6 | 766 | if (!InLegacyBoot) {\r |
9fa90bb4 | 767 | //\r |
768 | // Clear the InSmm flag as we are going to leave SMM\r | |
769 | //\r | |
770 | gSmmCorePrivate->InSmm = FALSE;\r | |
771 | }\r | |
e42e9404 | 772 | }\r |
773 | \r | |
0b256fb1 JY |
774 | /**\r |
775 | Install LoadedImage protocol for SMM Core.\r | |
776 | **/\r | |
777 | VOID\r | |
778 | SmmCoreInstallLoadedImage (\r | |
779 | VOID\r | |
780 | )\r | |
781 | {\r | |
1436aea4 MK |
782 | EFI_STATUS Status;\r |
783 | EFI_HANDLE Handle;\r | |
0b256fb1 JY |
784 | \r |
785 | //\r | |
786 | // Allocate a Loaded Image Protocol in EfiBootServicesData\r | |
787 | //\r | |
1436aea4 | 788 | Status = gBS->AllocatePool (EfiBootServicesData, sizeof (EFI_LOADED_IMAGE_PROTOCOL), (VOID **)&mSmmCoreLoadedImage);\r |
0b256fb1 JY |
789 | ASSERT_EFI_ERROR (Status);\r |
790 | \r | |
791 | ZeroMem (mSmmCoreLoadedImage, sizeof (EFI_LOADED_IMAGE_PROTOCOL));\r | |
792 | //\r | |
793 | // Fill in the remaining fields of the Loaded Image Protocol instance.\r | |
794 | // Note: ImageBase is an SMRAM address that can not be accessed outside of SMRAM if SMRAM window is closed.\r | |
795 | //\r | |
1436aea4 MK |
796 | mSmmCoreLoadedImage->Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;\r |
797 | mSmmCoreLoadedImage->ParentHandle = gSmmCorePrivate->SmmIplImageHandle;\r | |
798 | mSmmCoreLoadedImage->SystemTable = gST;\r | |
0b256fb1 JY |
799 | \r |
800 | mSmmCoreLoadedImage->ImageBase = (VOID *)(UINTN)gSmmCorePrivate->PiSmmCoreImageBase;\r | |
801 | mSmmCoreLoadedImage->ImageSize = gSmmCorePrivate->PiSmmCoreImageSize;\r | |
802 | mSmmCoreLoadedImage->ImageCodeType = EfiRuntimeServicesCode;\r | |
803 | mSmmCoreLoadedImage->ImageDataType = EfiRuntimeServicesData;\r | |
804 | \r | |
805 | //\r | |
806 | // Create a new image handle in the UEFI handle database for the SMM Driver\r | |
807 | //\r | |
808 | Handle = NULL;\r | |
809 | Status = gBS->InstallMultipleProtocolInterfaces (\r | |
810 | &Handle,\r | |
1436aea4 MK |
811 | &gEfiLoadedImageProtocolGuid,\r |
812 | mSmmCoreLoadedImage,\r | |
0b256fb1 JY |
813 | NULL\r |
814 | );\r | |
815 | ASSERT_EFI_ERROR (Status);\r | |
816 | \r | |
285a682c JY |
817 | //\r |
818 | // Allocate a Loaded Image Protocol in SMM\r | |
819 | //\r | |
1436aea4 MK |
820 | Status = SmmAllocatePool (EfiRuntimeServicesData, sizeof (EFI_SMM_DRIVER_ENTRY), (VOID **)&mSmmCoreDriverEntry);\r |
821 | ASSERT_EFI_ERROR (Status);\r | |
285a682c | 822 | \r |
1436aea4 | 823 | ZeroMem (mSmmCoreDriverEntry, sizeof (EFI_SMM_DRIVER_ENTRY));\r |
285a682c JY |
824 | //\r |
825 | // Fill in the remaining fields of the Loaded Image Protocol instance.\r | |
826 | //\r | |
1436aea4 MK |
827 | mSmmCoreDriverEntry->Signature = EFI_SMM_DRIVER_ENTRY_SIGNATURE;\r |
828 | mSmmCoreDriverEntry->SmmLoadedImage.Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;\r | |
285a682c | 829 | mSmmCoreDriverEntry->SmmLoadedImage.ParentHandle = gSmmCorePrivate->SmmIplImageHandle;\r |
1436aea4 | 830 | mSmmCoreDriverEntry->SmmLoadedImage.SystemTable = gST;\r |
285a682c | 831 | \r |
1436aea4 MK |
832 | mSmmCoreDriverEntry->SmmLoadedImage.ImageBase = (VOID *)(UINTN)gSmmCorePrivate->PiSmmCoreImageBase;\r |
833 | mSmmCoreDriverEntry->SmmLoadedImage.ImageSize = gSmmCorePrivate->PiSmmCoreImageSize;\r | |
285a682c JY |
834 | mSmmCoreDriverEntry->SmmLoadedImage.ImageCodeType = EfiRuntimeServicesCode;\r |
835 | mSmmCoreDriverEntry->SmmLoadedImage.ImageDataType = EfiRuntimeServicesData;\r | |
836 | \r | |
837 | mSmmCoreDriverEntry->ImageEntryPoint = gSmmCorePrivate->PiSmmCoreEntryPoint;\r | |
838 | mSmmCoreDriverEntry->ImageBuffer = gSmmCorePrivate->PiSmmCoreImageBase;\r | |
1436aea4 | 839 | mSmmCoreDriverEntry->NumberOfPage = EFI_SIZE_TO_PAGES ((UINTN)gSmmCorePrivate->PiSmmCoreImageSize);\r |
285a682c JY |
840 | \r |
841 | //\r | |
842 | // Create a new image handle in the SMM handle database for the SMM Driver\r | |
843 | //\r | |
844 | mSmmCoreDriverEntry->SmmImageHandle = NULL;\r | |
1436aea4 MK |
845 | Status = SmmInstallProtocolInterface (\r |
846 | &mSmmCoreDriverEntry->SmmImageHandle,\r | |
847 | &gEfiLoadedImageProtocolGuid,\r | |
848 | EFI_NATIVE_INTERFACE,\r | |
849 | &mSmmCoreDriverEntry->SmmLoadedImage\r | |
850 | );\r | |
851 | ASSERT_EFI_ERROR (Status);\r | |
285a682c | 852 | \r |
1436aea4 | 853 | return;\r |
0b256fb1 JY |
854 | }\r |
855 | \r | |
e42e9404 | 856 | /**\r |
857 | The Entry Point for SMM Core\r | |
858 | \r | |
d1102dba | 859 | Install DXE Protocols and reload SMM Core into SMRAM and register SMM Core\r |
e42e9404 | 860 | EntryPoint on the SMI vector.\r |
861 | \r | |
862 | Note: This function is called for both DXE invocation and SMRAM invocation.\r | |
863 | \r | |
864 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
865 | @param SystemTable A pointer to the EFI System Table.\r | |
866 | \r | |
867 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
868 | @retval Other Some error occurred when executing this entry point.\r | |
869 | \r | |
870 | **/\r | |
871 | EFI_STATUS\r | |
872 | EFIAPI\r | |
873 | SmmMain (\r | |
874 | IN EFI_HANDLE ImageHandle,\r | |
875 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
876 | )\r | |
877 | {\r | |
878 | EFI_STATUS Status;\r | |
879 | UINTN Index;\r | |
880 | \r | |
881 | //\r | |
882 | // Get SMM Core Private context passed in from SMM IPL in ImageHandle.\r | |
883 | //\r | |
884 | gSmmCorePrivate = (SMM_CORE_PRIVATE_DATA *)ImageHandle;\r | |
885 | \r | |
886 | //\r | |
887 | // Fill in SMRAM physical address for the SMM Services Table and the SMM Entry Point.\r | |
888 | //\r | |
889 | gSmmCorePrivate->Smst = &gSmmCoreSmst;\r | |
890 | gSmmCorePrivate->SmmEntryPoint = SmmEntryPoint;\r | |
e63da9f0 | 891 | \r |
e42e9404 | 892 | //\r |
842b1242 JY |
893 | // No need to initialize memory service.\r |
894 | // It is done in constructor of PiSmmCoreMemoryAllocationLib(),\r | |
4be497df | 895 | // so that the library linked with PiSmmCore can use AllocatePool() in constructor.\r |
e42e9404 | 896 | //\r |
e42e9404 | 897 | \r |
84edd20b SZ |
898 | SmramProfileInit ();\r |
899 | \r | |
900 | //\r | |
901 | // Copy FullSmramRanges to SMRAM\r | |
902 | //\r | |
c03beb76 | 903 | mFullSmramRangeCount = gSmmCorePrivate->SmramRangeCount;\r |
1436aea4 | 904 | mFullSmramRanges = AllocatePool (mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));\r |
84edd20b | 905 | ASSERT (mFullSmramRanges != NULL);\r |
c03beb76 | 906 | CopyMem (mFullSmramRanges, gSmmCorePrivate->SmramRanges, mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));\r |
84edd20b | 907 | \r |
e42e9404 | 908 | //\r |
909 | // Register all SMI Handlers required by the SMM Core\r | |
910 | //\r | |
911 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
912 | Status = SmiHandlerRegister (\r | |
913 | mSmmCoreSmiHandlers[Index].Handler,\r | |
914 | mSmmCoreSmiHandlers[Index].HandlerType,\r | |
915 | &mSmmCoreSmiHandlers[Index].DispatchHandle\r | |
916 | );\r | |
917 | ASSERT_EFI_ERROR (Status);\r | |
918 | }\r | |
84edd20b | 919 | \r |
bb2c9ccb ED |
920 | mAcpiS3Enable = PcdGetBool (PcdAcpiS3Enable);\r |
921 | if (mAcpiS3Enable) {\r | |
922 | //\r | |
923 | // Register all S3 related SMI Handlers required by the SMM Core\r | |
924 | //\r | |
925 | for (Index = 0; mSmmCoreS3SmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
926 | Status = SmiHandlerRegister (\r | |
927 | mSmmCoreS3SmiHandlers[Index].Handler,\r | |
928 | mSmmCoreS3SmiHandlers[Index].HandlerType,\r | |
929 | &mSmmCoreS3SmiHandlers[Index].DispatchHandle\r | |
930 | );\r | |
931 | ASSERT_EFI_ERROR (Status);\r | |
932 | }\r | |
933 | }\r | |
934 | \r | |
84edd20b | 935 | RegisterSmramProfileHandler ();\r |
e524f680 | 936 | SmramProfileInstallProtocol ();\r |
84edd20b | 937 | \r |
0b256fb1 JY |
938 | SmmCoreInstallLoadedImage ();\r |
939 | \r | |
285a682c JY |
940 | SmmCoreInitializeMemoryAttributesTable ();\r |
941 | \r | |
ca41f3f4 JY |
942 | SmmCoreInitializeSmiHandlerProfile ();\r |
943 | \r | |
e42e9404 | 944 | return EFI_SUCCESS;\r |
945 | }\r |