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e42e9404 | 1 | /** @file\r |
2 | SMM Core Main Entry Point\r | |
3 | \r | |
84edd20b | 4 | Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>\r |
e42e9404 | 5 | This program and the accompanying materials are licensed and made available \r |
6 | under the terms and conditions of the BSD License which accompanies this \r | |
7 | distribution. The full text of the license may be found at \r | |
8 | http://opensource.org/licenses/bsd-license.php \r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include "PiSmmCore.h"\r | |
16 | \r | |
17 | //\r | |
18 | // Physical pointer to private structure shared between SMM IPL and the SMM Core\r | |
19 | //\r | |
20 | SMM_CORE_PRIVATE_DATA *gSmmCorePrivate;\r | |
21 | \r | |
22 | //\r | |
23 | // SMM Core global variable for SMM System Table. Only accessed as a physical structure in SMRAM.\r | |
24 | //\r | |
25 | EFI_SMM_SYSTEM_TABLE2 gSmmCoreSmst = {\r | |
26 | {\r | |
27 | SMM_SMST_SIGNATURE,\r | |
28 | EFI_SMM_SYSTEM_TABLE2_REVISION,\r | |
29 | sizeof (gSmmCoreSmst.Hdr)\r | |
30 | },\r | |
31 | NULL, // SmmFirmwareVendor\r | |
32 | 0, // SmmFirmwareRevision\r | |
33 | SmmInstallConfigurationTable,\r | |
34 | {\r | |
35 | {\r | |
36 | (EFI_SMM_CPU_IO2) SmmEfiNotAvailableYetArg5, // SmmMemRead\r | |
37 | (EFI_SMM_CPU_IO2) SmmEfiNotAvailableYetArg5 // SmmMemWrite\r | |
38 | },\r | |
39 | {\r | |
40 | (EFI_SMM_CPU_IO2) SmmEfiNotAvailableYetArg5, // SmmIoRead\r | |
41 | (EFI_SMM_CPU_IO2) SmmEfiNotAvailableYetArg5 // SmmIoWrite\r | |
42 | }\r | |
43 | },\r | |
44 | SmmAllocatePool,\r | |
45 | SmmFreePool,\r | |
46 | SmmAllocatePages,\r | |
47 | SmmFreePages,\r | |
48 | NULL, // SmmStartupThisAp\r | |
49 | 0, // CurrentlyExecutingCpu\r | |
50 | 0, // NumberOfCpus\r | |
51 | NULL, // CpuSaveStateSize\r | |
52 | NULL, // CpuSaveState\r | |
53 | 0, // NumberOfTableEntries\r | |
54 | NULL, // SmmConfigurationTable\r | |
55 | SmmInstallProtocolInterface,\r | |
56 | SmmUninstallProtocolInterface,\r | |
57 | SmmHandleProtocol,\r | |
58 | SmmRegisterProtocolNotify,\r | |
59 | SmmLocateHandle,\r | |
60 | SmmLocateProtocol,\r | |
61 | SmiManage,\r | |
62 | SmiHandlerRegister,\r | |
63 | SmiHandlerUnRegister\r | |
64 | };\r | |
65 | \r | |
66 | //\r | |
67 | // Flag to determine if the platform has performed a legacy boot.\r | |
68 | // If this flag is TRUE, then the runtime code and runtime data associated with the \r | |
69 | // SMM IPL are converted to free memory, so the SMM COre must guarantee that is\r | |
70 | // does not touch of the code/data associated with the SMM IPL if this flag is TRUE.\r | |
71 | //\r | |
72 | BOOLEAN mInLegacyBoot = FALSE;\r | |
73 | \r | |
74 | //\r | |
75 | // Table of SMI Handlers that are registered by the SMM Core when it is initialized\r | |
76 | //\r | |
77 | SMM_CORE_SMI_HANDLERS mSmmCoreSmiHandlers[] = {\r | |
78 | { SmmDriverDispatchHandler, &gEfiEventDxeDispatchGuid, NULL, TRUE },\r | |
d5c3d1be | 79 | { SmmReadyToLockHandler, &gEfiDxeSmmReadyToLockProtocolGuid, NULL, TRUE }, \r |
e42e9404 | 80 | { SmmLegacyBootHandler, &gEfiEventLegacyBootGuid, NULL, FALSE },\r |
46ece1ff | 81 | { SmmEndOfDxeHandler, &gEfiEndOfDxeEventGroupGuid, NULL, FALSE },\r |
e42e9404 | 82 | { NULL, NULL, NULL, FALSE }\r |
83 | };\r | |
84 | \r | |
84edd20b SZ |
85 | UINTN mFullSmramRangeCount;\r |
86 | EFI_SMRAM_DESCRIPTOR *mFullSmramRanges;\r | |
87 | \r | |
3720ee6d JF |
88 | //\r |
89 | // Maximum support address used to check input CommunicationBuffer\r | |
90 | //\r | |
91 | UINTN mMaximumSupportAddress = 0;\r | |
92 | \r | |
e42e9404 | 93 | /**\r |
94 | Place holder function until all the SMM System Table Service are available.\r | |
95 | \r | |
96 | Note: This function is only used by SMRAM invocation. It is never used by DXE invocation.\r | |
97 | \r | |
98 | @param Arg1 Undefined\r | |
99 | @param Arg2 Undefined\r | |
100 | @param Arg3 Undefined\r | |
101 | @param Arg4 Undefined\r | |
102 | @param Arg5 Undefined\r | |
103 | \r | |
104 | @return EFI_NOT_AVAILABLE_YET\r | |
105 | \r | |
106 | **/\r | |
107 | EFI_STATUS\r | |
108 | EFIAPI\r | |
109 | SmmEfiNotAvailableYetArg5 (\r | |
110 | UINTN Arg1,\r | |
111 | UINTN Arg2,\r | |
112 | UINTN Arg3,\r | |
113 | UINTN Arg4,\r | |
114 | UINTN Arg5\r | |
115 | )\r | |
116 | {\r | |
117 | //\r | |
118 | // This function should never be executed. If it does, then the architectural protocols\r | |
119 | // have not been designed correctly.\r | |
120 | //\r | |
121 | return EFI_NOT_AVAILABLE_YET;\r | |
122 | }\r | |
123 | \r | |
124 | /**\r | |
125 | Software SMI handler that is called when a Legacy Boot event is signalled. The SMM\r | |
126 | Core uses this signal to know that a Legacy Boot has been performed and that \r | |
127 | gSmmCorePrivate that is shared between the UEFI and SMM execution environments can\r | |
128 | not be accessed from SMM anymore since that structure is considered free memory by\r | |
129 | a legacy OS.\r | |
130 | \r | |
131 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
132 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
133 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
134 | be conveyed from a non-SMM environment into an SMM environment.\r | |
135 | @param CommBufferSize The size of the CommBuffer.\r | |
136 | \r | |
137 | @return Status Code\r | |
138 | \r | |
139 | **/\r | |
140 | EFI_STATUS\r | |
141 | EFIAPI\r | |
142 | SmmLegacyBootHandler (\r | |
143 | IN EFI_HANDLE DispatchHandle,\r | |
144 | IN CONST VOID *Context, OPTIONAL\r | |
145 | IN OUT VOID *CommBuffer, OPTIONAL\r | |
146 | IN OUT UINTN *CommBufferSize OPTIONAL\r | |
147 | )\r | |
148 | {\r | |
149 | mInLegacyBoot = TRUE;\r | |
150 | return EFI_SUCCESS;\r | |
151 | }\r | |
152 | \r | |
153 | /**\r | |
154 | Software SMI handler that is called when the DxeSmmReadyToLock protocol is added\r | |
155 | or if gEfiEventReadyToBootGuid is signalled. This function unregisters the \r | |
156 | Software SMIs that are nor required after SMRAM is locked and installs the \r | |
157 | SMM Ready To Lock Protocol so SMM Drivers are informed that SMRAM is about \r | |
158 | to be locked. It also verifies the the SMM CPU I/O 2 Protocol has been installed\r | |
159 | and NULLs gBS and gST because they can not longer be used after SMRAM is locked.\r | |
160 | \r | |
161 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
162 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
163 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
164 | be conveyed from a non-SMM environment into an SMM environment.\r | |
165 | @param CommBufferSize The size of the CommBuffer.\r | |
166 | \r | |
167 | @return Status Code\r | |
168 | \r | |
169 | **/\r | |
170 | EFI_STATUS\r | |
171 | EFIAPI\r | |
172 | SmmReadyToLockHandler (\r | |
173 | IN EFI_HANDLE DispatchHandle,\r | |
174 | IN CONST VOID *Context, OPTIONAL\r | |
175 | IN OUT VOID *CommBuffer, OPTIONAL\r | |
176 | IN OUT UINTN *CommBufferSize OPTIONAL\r | |
177 | )\r | |
178 | {\r | |
179 | EFI_STATUS Status;\r | |
180 | UINTN Index;\r | |
181 | EFI_HANDLE SmmHandle;\r | |
182 | VOID *Interface;\r | |
183 | \r | |
184 | //\r | |
185 | // Unregister SMI Handlers that are no required after the SMM driver dispatch is stopped\r | |
186 | //\r | |
187 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
188 | if (mSmmCoreSmiHandlers[Index].UnRegister) {\r | |
189 | SmiHandlerUnRegister (mSmmCoreSmiHandlers[Index].DispatchHandle);\r | |
190 | }\r | |
191 | }\r | |
192 | \r | |
193 | //\r | |
194 | // Install SMM Ready to lock protocol\r | |
195 | //\r | |
196 | SmmHandle = NULL;\r | |
197 | Status = SmmInstallProtocolInterface (\r | |
198 | &SmmHandle,\r | |
199 | &gEfiSmmReadyToLockProtocolGuid,\r | |
200 | EFI_NATIVE_INTERFACE,\r | |
201 | NULL\r | |
202 | );\r | |
203 | \r | |
204 | //\r | |
205 | // Make sure SMM CPU I/O 2 Procol has been installed into the handle database\r | |
206 | //\r | |
207 | Status = SmmLocateProtocol (&gEfiSmmCpuIo2ProtocolGuid, NULL, &Interface);\r | |
208 | \r | |
209 | //\r | |
210 | // Print a message on a debug build if the SMM CPU I/O 2 Protocol is not installed\r | |
211 | //\r | |
212 | DEBUG_CODE_BEGIN ();\r | |
213 | if (EFI_ERROR (Status)) {\r | |
214 | DEBUG ((DEBUG_ERROR, "\nSMM: SmmCpuIo Arch Protocol not present!!\n"));\r | |
215 | }\r | |
216 | DEBUG_CODE_END ();\r | |
217 | \r | |
218 | //\r | |
219 | // Assert if the CPU I/O 2 Protocol is not installed\r | |
220 | //\r | |
221 | ASSERT_EFI_ERROR (Status);\r | |
222 | \r | |
223 | //\r | |
224 | // Display any drivers that were not dispatched because dependency expression\r | |
225 | // evaluated to false if this is a debug build\r | |
226 | //\r | |
227 | DEBUG_CODE_BEGIN ();\r | |
228 | SmmDisplayDiscoveredNotDispatched ();\r | |
229 | DEBUG_CODE_END ();\r | |
230 | \r | |
231 | //\r | |
232 | // Not allowed to use gST or gBS after lock\r | |
233 | //\r | |
234 | gST = NULL;\r | |
235 | gBS = NULL;\r | |
236 | \r | |
84edd20b SZ |
237 | SmramProfileReadyToLock ();\r |
238 | \r | |
e42e9404 | 239 | return Status;\r |
240 | }\r | |
241 | \r | |
46ece1ff JY |
242 | /**\r |
243 | Software SMI handler that is called when the EndOfDxe event is signalled.\r | |
244 | This function installs the SMM EndOfDxe Protocol so SMM Drivers are informed that\r | |
245 | platform code will invoke 3rd part code.\r | |
246 | \r | |
247 | @param DispatchHandle The unique handle assigned to this handler by SmiHandlerRegister().\r | |
248 | @param Context Points to an optional handler context which was specified when the handler was registered.\r | |
249 | @param CommBuffer A pointer to a collection of data in memory that will\r | |
250 | be conveyed from a non-SMM environment into an SMM environment.\r | |
251 | @param CommBufferSize The size of the CommBuffer.\r | |
252 | \r | |
253 | @return Status Code\r | |
254 | \r | |
255 | **/\r | |
256 | EFI_STATUS\r | |
257 | EFIAPI\r | |
258 | SmmEndOfDxeHandler (\r | |
259 | IN EFI_HANDLE DispatchHandle,\r | |
260 | IN CONST VOID *Context, OPTIONAL\r | |
261 | IN OUT VOID *CommBuffer, OPTIONAL\r | |
262 | IN OUT UINTN *CommBufferSize OPTIONAL\r | |
263 | )\r | |
264 | {\r | |
265 | EFI_STATUS Status;\r | |
266 | EFI_HANDLE SmmHandle;\r | |
267 | \r | |
268 | DEBUG ((EFI_D_INFO, "SmmEndOfDxeHandler\n"));\r | |
269 | //\r | |
270 | // Install SMM EndOfDxe protocol\r | |
271 | //\r | |
272 | SmmHandle = NULL;\r | |
273 | Status = SmmInstallProtocolInterface (\r | |
274 | &SmmHandle,\r | |
275 | &gEfiSmmEndOfDxeProtocolGuid,\r | |
276 | EFI_NATIVE_INTERFACE,\r | |
277 | NULL\r | |
278 | );\r | |
42e2ff2e | 279 | return Status;\r |
46ece1ff JY |
280 | }\r |
281 | \r | |
3720ee6d JF |
282 | /**\r |
283 | Caculate and save the maximum support address.\r | |
284 | \r | |
285 | **/\r | |
286 | VOID\r | |
287 | CaculateMaximumSupportAddress (\r | |
288 | VOID\r | |
289 | )\r | |
290 | {\r | |
291 | VOID *Hob;\r | |
292 | UINT32 RegEax;\r | |
293 | UINT8 PhysicalAddressBits;\r | |
294 | \r | |
295 | //\r | |
296 | // Get physical address bits supported.\r | |
297 | //\r | |
298 | Hob = GetFirstHob (EFI_HOB_TYPE_CPU);\r | |
299 | if (Hob != NULL) {\r | |
300 | PhysicalAddressBits = ((EFI_HOB_CPU *) Hob)->SizeOfMemorySpace;\r | |
301 | } else {\r | |
302 | AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);\r | |
303 | if (RegEax >= 0x80000008) {\r | |
304 | AsmCpuid (0x80000008, &RegEax, NULL, NULL, NULL);\r | |
305 | PhysicalAddressBits = (UINT8) RegEax;\r | |
306 | } else {\r | |
307 | PhysicalAddressBits = 36;\r | |
308 | }\r | |
309 | }\r | |
310 | //\r | |
311 | // IA-32e paging translates 48-bit linear addresses to 52-bit physical addresses.\r | |
312 | //\r | |
313 | ASSERT (PhysicalAddressBits <= 52);\r | |
314 | if (PhysicalAddressBits > 48) {\r | |
315 | PhysicalAddressBits = 48;\r | |
316 | }\r | |
317 | \r | |
318 | //\r | |
319 | // Save the maximum support address in one global variable \r | |
320 | //\r | |
321 | mMaximumSupportAddress = (UINTN) (LShiftU64 (1, PhysicalAddressBits) - 1);\r | |
322 | DEBUG ((EFI_D_INFO, "mMaximumSupportAddress = 0x%lx\n", mMaximumSupportAddress));\r | |
323 | }\r | |
324 | \r | |
325 | /**\r | |
326 | Check if input buffer is in valid address scope or not.\r | |
327 | \r | |
328 | @param[in] Pointer Pointer to the input buffer.\r | |
329 | @param[in] BufferSize Input buffer size in bytes.\r | |
330 | \r | |
331 | @retval TRUE The input buffer is in valid address scope. \r | |
332 | @retval FALSE The input buffer is not in valid address scope. \r | |
333 | \r | |
334 | **/\r | |
335 | BOOLEAN\r | |
336 | IsValidPointer (\r | |
337 | IN VOID *Pointer,\r | |
338 | IN UINTN BufferSize\r | |
339 | )\r | |
340 | {\r | |
341 | if ((UINTN) Pointer > mMaximumSupportAddress) {\r | |
342 | return FALSE;\r | |
343 | }\r | |
344 | \r | |
345 | if (BufferSize > (mMaximumSupportAddress - (UINTN) Pointer)) {\r | |
346 | return FALSE;\r | |
347 | }\r | |
348 | \r | |
349 | return TRUE;\r | |
350 | }\r | |
351 | \r | |
e42e9404 | 352 | /**\r |
353 | The main entry point to SMM Foundation.\r | |
354 | \r | |
355 | Note: This function is only used by SMRAM invocation. It is never used by DXE invocation.\r | |
356 | \r | |
357 | @param SmmEntryContext Processor information and functionality\r | |
358 | needed by SMM Foundation.\r | |
359 | \r | |
360 | **/\r | |
361 | VOID\r | |
362 | EFIAPI\r | |
363 | SmmEntryPoint (\r | |
364 | IN CONST EFI_SMM_ENTRY_CONTEXT *SmmEntryContext\r | |
365 | )\r | |
366 | {\r | |
367 | EFI_STATUS Status;\r | |
368 | EFI_SMM_COMMUNICATE_HEADER *CommunicateHeader;\r | |
a25cb9f6 | 369 | BOOLEAN InLegacyBoot;\r |
e42e9404 | 370 | \r |
495797c5 | 371 | PERF_START (NULL, "SMM", NULL, 0) ;\r |
372 | \r | |
e42e9404 | 373 | //\r |
374 | // Update SMST using the context\r | |
375 | //\r | |
376 | CopyMem (&gSmmCoreSmst.SmmStartupThisAp, SmmEntryContext, sizeof (EFI_SMM_ENTRY_CONTEXT));\r | |
377 | \r | |
495797c5 | 378 | //\r |
379 | // Call platform hook before Smm Dispatch\r | |
380 | //\r | |
381 | PlatformHookBeforeSmmDispatch ();\r | |
382 | \r | |
e42e9404 | 383 | //\r |
384 | // If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed\r | |
385 | //\r | |
a25cb9f6 | 386 | InLegacyBoot = mInLegacyBoot;\r |
387 | if (!InLegacyBoot) {\r | |
e42e9404 | 388 | //\r |
9fa90bb4 | 389 | // Mark the InSmm flag as TRUE, it will be used by SmmBase2 protocol\r |
e42e9404 | 390 | //\r |
9fa90bb4 | 391 | gSmmCorePrivate->InSmm = TRUE;\r |
e42e9404 | 392 | \r |
393 | //\r | |
9fa90bb4 | 394 | // Check to see if this is a Synchronous SMI sent through the SMM Communication \r |
395 | // Protocol or an Asynchronous SMI\r | |
e42e9404 | 396 | //\r |
9fa90bb4 | 397 | if (gSmmCorePrivate->CommunicationBuffer != NULL) {\r |
398 | //\r | |
399 | // Synchronous SMI for SMM Core or request from Communicate protocol\r | |
400 | //\r | |
3720ee6d JF |
401 | if (!IsValidPointer (gSmmCorePrivate->CommunicationBuffer, gSmmCorePrivate->BufferSize)) {\r |
402 | //\r | |
403 | // If CommunicationBuffer is not in valid address scope, return EFI_INVALID_PARAMETER\r | |
404 | //\r | |
405 | gSmmCorePrivate->CommunicationBuffer = NULL;\r | |
406 | gSmmCorePrivate->ReturnStatus = EFI_INVALID_PARAMETER;\r | |
407 | } else {\r | |
408 | CommunicateHeader = (EFI_SMM_COMMUNICATE_HEADER *)gSmmCorePrivate->CommunicationBuffer;\r | |
409 | gSmmCorePrivate->BufferSize -= OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r | |
410 | Status = SmiManage (\r | |
411 | &CommunicateHeader->HeaderGuid, \r | |
412 | NULL, \r | |
413 | CommunicateHeader->Data, \r | |
414 | &gSmmCorePrivate->BufferSize\r | |
415 | );\r | |
416 | //\r | |
417 | // Update CommunicationBuffer, BufferSize and ReturnStatus\r | |
418 | // Communicate service finished, reset the pointer to CommBuffer to NULL\r | |
419 | //\r | |
420 | gSmmCorePrivate->BufferSize += OFFSET_OF (EFI_SMM_COMMUNICATE_HEADER, Data);\r | |
421 | gSmmCorePrivate->CommunicationBuffer = NULL;\r | |
422 | gSmmCorePrivate->ReturnStatus = (Status == EFI_SUCCESS) ? EFI_SUCCESS : EFI_NOT_FOUND;\r | |
423 | }\r | |
9fa90bb4 | 424 | }\r |
e42e9404 | 425 | }\r |
9fa90bb4 | 426 | \r |
427 | //\r | |
428 | // Process Asynchronous SMI sources\r | |
429 | //\r | |
430 | SmiManage (NULL, NULL, NULL, NULL);\r | |
495797c5 | 431 | \r |
432 | //\r | |
433 | // Call platform hook after Smm Dispatch\r | |
434 | //\r | |
435 | PlatformHookAfterSmmDispatch ();\r | |
e42e9404 | 436 | \r |
437 | //\r | |
9fa90bb4 | 438 | // If a legacy boot has occured, then make sure gSmmCorePrivate is not accessed\r |
e42e9404 | 439 | //\r |
a25cb9f6 | 440 | if (!InLegacyBoot) {\r |
9fa90bb4 | 441 | //\r |
442 | // Clear the InSmm flag as we are going to leave SMM\r | |
443 | //\r | |
444 | gSmmCorePrivate->InSmm = FALSE;\r | |
445 | }\r | |
495797c5 | 446 | \r |
447 | PERF_END (NULL, "SMM", NULL, 0) ;\r | |
e42e9404 | 448 | }\r |
449 | \r | |
450 | /**\r | |
451 | The Entry Point for SMM Core\r | |
452 | \r | |
453 | Install DXE Protocols and reload SMM Core into SMRAM and register SMM Core \r | |
454 | EntryPoint on the SMI vector.\r | |
455 | \r | |
456 | Note: This function is called for both DXE invocation and SMRAM invocation.\r | |
457 | \r | |
458 | @param ImageHandle The firmware allocated handle for the EFI image.\r | |
459 | @param SystemTable A pointer to the EFI System Table.\r | |
460 | \r | |
461 | @retval EFI_SUCCESS The entry point is executed successfully.\r | |
462 | @retval Other Some error occurred when executing this entry point.\r | |
463 | \r | |
464 | **/\r | |
465 | EFI_STATUS\r | |
466 | EFIAPI\r | |
467 | SmmMain (\r | |
468 | IN EFI_HANDLE ImageHandle,\r | |
469 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
470 | )\r | |
471 | {\r | |
472 | EFI_STATUS Status;\r | |
473 | UINTN Index;\r | |
474 | \r | |
475 | //\r | |
476 | // Get SMM Core Private context passed in from SMM IPL in ImageHandle.\r | |
477 | //\r | |
478 | gSmmCorePrivate = (SMM_CORE_PRIVATE_DATA *)ImageHandle;\r | |
479 | \r | |
480 | //\r | |
481 | // Fill in SMRAM physical address for the SMM Services Table and the SMM Entry Point.\r | |
482 | //\r | |
483 | gSmmCorePrivate->Smst = &gSmmCoreSmst;\r | |
484 | gSmmCorePrivate->SmmEntryPoint = SmmEntryPoint;\r | |
485 | \r | |
486 | //\r | |
487 | // Initialize memory service using free SMRAM\r | |
488 | //\r | |
489 | SmmInitializeMemoryServices (gSmmCorePrivate->SmramRangeCount, gSmmCorePrivate->SmramRanges);\r | |
490 | \r | |
84edd20b SZ |
491 | SmramProfileInit ();\r |
492 | \r | |
493 | //\r | |
494 | // Copy FullSmramRanges to SMRAM\r | |
495 | //\r | |
496 | mFullSmramRangeCount = gSmmCorePrivate->FullSmramRangeCount;\r | |
497 | mFullSmramRanges = AllocatePool (mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));\r | |
498 | ASSERT (mFullSmramRanges != NULL);\r | |
499 | CopyMem (mFullSmramRanges, gSmmCorePrivate->FullSmramRanges, mFullSmramRangeCount * sizeof (EFI_SMRAM_DESCRIPTOR));\r | |
500 | \r | |
e42e9404 | 501 | //\r |
502 | // Register all SMI Handlers required by the SMM Core\r | |
503 | //\r | |
504 | for (Index = 0; mSmmCoreSmiHandlers[Index].HandlerType != NULL; Index++) {\r | |
505 | Status = SmiHandlerRegister (\r | |
506 | mSmmCoreSmiHandlers[Index].Handler,\r | |
507 | mSmmCoreSmiHandlers[Index].HandlerType,\r | |
508 | &mSmmCoreSmiHandlers[Index].DispatchHandle\r | |
509 | );\r | |
510 | ASSERT_EFI_ERROR (Status);\r | |
511 | }\r | |
84edd20b SZ |
512 | \r |
513 | RegisterSmramProfileHandler ();\r | |
514 | \r | |
3720ee6d JF |
515 | //\r |
516 | // Caculate and save maximum support address used in SmmEntryPoint().\r | |
517 | //\r | |
518 | CaculateMaximumSupportAddress ();\r | |
519 | \r | |
e42e9404 | 520 | return EFI_SUCCESS;\r |
521 | }\r |