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1/** @file\r
2 EFI PEI Core dispatch services\r
3 \r
4Copyright (c) 2006 - 2010, Intel Corporation\r
5All rights reserved. This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14\r
15#include "PeiMain.h"\r
16\r
17///\r
18/// temporary memory is filled with this initial value during SEC phase\r
19///\r
20#define INIT_CAR_VALUE 0x5AA55AA5\r
21\r
22typedef struct {\r
23 EFI_STATUS_CODE_DATA DataHeader;\r
24 EFI_HANDLE Handle;\r
25} PEIM_FILE_HANDLE_EXTENDED_DATA;\r
26\r
27/**\r
28\r
29 Discover all Peims and optional Apriori file in one FV. There is at most one\r
30 Apriori file in one FV.\r
31\r
32\r
33 @param Private Pointer to the private data passed in from caller\r
34 @param CoreFileHandle The instance of PEI_CORE_FV_HANDLE.\r
35\r
36**/\r
37VOID\r
38DiscoverPeimsAndOrderWithApriori (\r
39 IN PEI_CORE_INSTANCE *Private,\r
40 IN PEI_CORE_FV_HANDLE *CoreFileHandle\r
41 )\r
42{\r
43 EFI_STATUS Status;\r
44 EFI_PEI_FV_HANDLE FileHandle;\r
45 EFI_PEI_FILE_HANDLE AprioriFileHandle;\r
46 EFI_GUID *Apriori;\r
47 UINTN Index;\r
48 UINTN Index2;\r
49 UINTN PeimIndex;\r
50 UINTN PeimCount;\r
51 EFI_GUID *Guid;\r
52 EFI_PEI_FV_HANDLE TempFileHandles[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv)];\r
53 EFI_GUID FileGuid[FixedPcdGet32 (PcdPeiCoreMaxPeimPerFv)];\r
54 EFI_PEI_FIRMWARE_VOLUME_PPI *FvPpi;\r
55 EFI_FV_FILE_INFO FileInfo;\r
56 \r
57 FvPpi = CoreFileHandle->FvPpi;\r
58 \r
59 //\r
60 // Walk the FV and find all the PEIMs and the Apriori file.\r
61 //\r
62 AprioriFileHandle = NULL;\r
63 Private->CurrentFvFileHandles[0] = NULL;\r
64 Guid = NULL;\r
65 FileHandle = NULL;\r
66\r
67 //\r
68 // If the current Fv has been scanned, directly get its cachable record.\r
69 //\r
70 if (Private->Fv[Private->CurrentPeimFvCount].ScanFv) {\r
71 CopyMem (Private->CurrentFvFileHandles, Private->Fv[Private->CurrentPeimFvCount].FvFileHandles, sizeof (Private->CurrentFvFileHandles));\r
72 return;\r
73 }\r
74\r
75 //\r
76 // Go ahead to scan this Fv, and cache FileHandles within it.\r
77 //\r
78 for (PeimCount = 0; PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv); PeimCount++) {\r
79 Status = FvPpi->FindFileByType (FvPpi, PEI_CORE_INTERNAL_FFS_FILE_DISPATCH_TYPE, CoreFileHandle->FvHandle, &FileHandle);\r
80 if (Status != EFI_SUCCESS) {\r
81 break;\r
82 }\r
83\r
84 Private->CurrentFvFileHandles[PeimCount] = FileHandle;\r
85 }\r
86 \r
87 //\r
88 // Check whether the count of Peims exceeds the max support PEIMs in a FV image\r
89 // If more Peims are required in a FV image, PcdPeiCoreMaxPeimPerFv can be set to a larger value in DSC file.\r
90 //\r
91 ASSERT (PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv));\r
92\r
93 //\r
94 // Get Apriori File handle\r
95 //\r
96 Private->AprioriCount = 0;\r
97 Status = FvPpi->FindFileByName (FvPpi, &gPeiAprioriFileNameGuid, &CoreFileHandle->FvHandle, &AprioriFileHandle);\r
98 if (!EFI_ERROR(Status) && AprioriFileHandle != NULL) {\r
99 //\r
100 // Read the Apriori file\r
101 //\r
102 Status = FvPpi->FindSectionByType (FvPpi, EFI_SECTION_RAW, AprioriFileHandle, (VOID **) &Apriori);\r
103 if (!EFI_ERROR (Status)) {\r
104 //\r
105 // Calculate the number of PEIMs in the A Priori list\r
106 //\r
107 Status = FvPpi->GetFileInfo (FvPpi, AprioriFileHandle, &FileInfo);\r
108 ASSERT_EFI_ERROR (Status);\r
109 Private->AprioriCount = FileInfo.BufferSize & 0x00FFFFFF;\r
110 Private->AprioriCount -= sizeof (EFI_COMMON_SECTION_HEADER);\r
111 Private->AprioriCount /= sizeof (EFI_GUID);\r
112\r
113 ZeroMem (FileGuid, sizeof (FileGuid));\r
114 for (Index = 0; Index < PeimCount; Index++) {\r
115 //\r
116 // Make an array of file name guids that matches the FileHandle array so we can convert\r
117 // quickly from file name to file handle\r
118 //\r
119 Status = FvPpi->GetFileInfo (FvPpi, Private->CurrentFvFileHandles[Index], &FileInfo);\r
120 CopyMem (&FileGuid[Index], &FileInfo.FileName, sizeof(EFI_GUID));\r
121 }\r
122\r
123 //\r
124 // Walk through FileGuid array to find out who is invalid PEIM guid in Apriori file.\r
125 // Add avalible PEIMs in Apriori file into TempFileHandles array at first.\r
126 //\r
127 Index2 = 0;\r
128 for (Index = 0; Index2 < Private->AprioriCount; Index++) {\r
129 while (Index2 < Private->AprioriCount) {\r
130 Guid = ScanGuid (FileGuid, PeimCount * sizeof (EFI_GUID), &Apriori[Index2++]);\r
131 if (Guid != NULL) {\r
132 break;\r
133 }\r
134 }\r
135 if (Guid == NULL) {\r
136 break;\r
137 }\r
138 PeimIndex = ((UINTN)Guid - (UINTN)&FileGuid[0])/sizeof (EFI_GUID);\r
139 TempFileHandles[Index] = Private->CurrentFvFileHandles[PeimIndex];\r
140\r
141 //\r
142 // Since we have copied the file handle we can remove it from this list.\r
143 //\r
144 Private->CurrentFvFileHandles[PeimIndex] = NULL;\r
145 }\r
146\r
147 //\r
148 // Update valid Aprioricount\r
149 //\r
150 Private->AprioriCount = Index;\r
151\r
152 //\r
153 // Add in any PEIMs not in the Apriori file\r
154 //\r
155 for (;Index < PeimCount; Index++) {\r
156 for (Index2 = 0; Index2 < PeimCount; Index2++) {\r
157 if (Private->CurrentFvFileHandles[Index2] != NULL) {\r
158 TempFileHandles[Index] = Private->CurrentFvFileHandles[Index2];\r
159 Private->CurrentFvFileHandles[Index2] = NULL;\r
160 break;\r
161 }\r
162 }\r
163 }\r
164 //\r
165 //Index the end of array contains re-range Pei moudle.\r
166 //\r
167 TempFileHandles[Index] = NULL;\r
168\r
169 //\r
170 // Private->CurrentFvFileHandles is currently in PEIM in the FV order.\r
171 // We need to update it to start with files in the A Priori list and\r
172 // then the remaining files in PEIM order.\r
173 //\r
174 CopyMem (Private->CurrentFvFileHandles, TempFileHandles, sizeof (Private->CurrentFvFileHandles));\r
175 }\r
176 }\r
177 //\r
178 // Cache the current Fv File Handle. So that we don't have to scan the Fv again.\r
179 // Instead, we can retrieve the file handles within this Fv from cachable data.\r
180 //\r
181 Private->Fv[Private->CurrentPeimFvCount].ScanFv = TRUE;\r
182 CopyMem (Private->Fv[Private->CurrentPeimFvCount].FvFileHandles, Private->CurrentFvFileHandles, sizeof (Private->CurrentFvFileHandles));\r
183\r
184}\r
185\r
186/**\r
187 Shadow PeiCore module from flash to installed memory.\r
188 \r
189 @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation.\r
190 @param PrivateInMem PeiCore's private data structure\r
191\r
192 @return PeiCore function address after shadowing.\r
193**/\r
194VOID*\r
195ShadowPeiCore(\r
196 IN CONST EFI_PEI_SERVICES **PeiServices,\r
197 IN PEI_CORE_INSTANCE *PrivateInMem\r
198 )\r
199{\r
200 EFI_PEI_FILE_HANDLE PeiCoreFileHandle;\r
201 EFI_PHYSICAL_ADDRESS EntryPoint;\r
202 EFI_STATUS Status;\r
203 UINT32 AuthenticationState;\r
204\r
205 PeiCoreFileHandle = NULL;\r
206\r
207 //\r
208 // Find the PEI Core in the BFV\r
209 //\r
210 Status = PrivateInMem->Fv[0].FvPpi->FindFileByType (\r
211 PrivateInMem->Fv[0].FvPpi,\r
212 EFI_FV_FILETYPE_PEI_CORE,\r
213 PrivateInMem->Fv[0].FvHandle,\r
214 &PeiCoreFileHandle\r
215 );\r
216 ASSERT_EFI_ERROR (Status);\r
217\r
218 //\r
219 // Shadow PEI Core into memory so it will run faster\r
220 //\r
221 Status = PeiLoadImage (\r
222 PeiServices,\r
223 *((EFI_PEI_FILE_HANDLE*)&PeiCoreFileHandle),\r
224 PEIM_STATE_REGISITER_FOR_SHADOW,\r
225 &EntryPoint,\r
226 &AuthenticationState\r
227 );\r
228 ASSERT_EFI_ERROR (Status);\r
229\r
230 //\r
231 // Compute the PeiCore's function address after shaowed PeiCore.\r
232 // _ModuleEntryPoint is PeiCore main function entry\r
233 //\r
234 return (VOID*) ((UINTN) EntryPoint + (UINTN) PeiCore - (UINTN) _ModuleEntryPoint);\r
235}\r
236//\r
237// This is the minimum memory required by DxeCore initialization. When LMFA feature enabled,\r
238// This part of memory still need reserved on the very top of memory so that the DXE Core could \r
239// use these memory for data initialization. This macro should be sync with the same marco\r
240// defined in DXE Core.\r
241//\r
242#define MINIMUM_INITIAL_MEMORY_SIZE 0x10000\r
243/**\r
244 Hook function for Loading Module at Fixed Address feature\r
245 \r
246 This function should only be invoked when Loading Module at Fixed Address(LMFA) feature is enabled. When feature is\r
247 configured as Load Modules at Fix Absolute Address, this function is to validate the top address assigned by user. When \r
248 feature is configured as Load Modules at Fixed Offset, the functino is to find the top address which is TOLM-TSEG in general. \r
249 And also the function will re-install PEI memory. \r
250\r
251 @param PrivateData Pointer to the private data passed in from caller\r
252\r
253**/\r
254VOID\r
255PeiLoadFixAddressHook(\r
256 IN PEI_CORE_INSTANCE *PrivateData\r
257 )\r
258{\r
259 EFI_PHYSICAL_ADDRESS TopLoadingAddress;\r
260 UINT64 PeiMemorySize;\r
261 UINT64 TotalReservedMemorySize;\r
262 UINT64 MemoryRangeEnd;\r
263 EFI_PHYSICAL_ADDRESS HighAddress; \r
264 EFI_HOB_RESOURCE_DESCRIPTOR *ResourceHob;\r
265 EFI_HOB_RESOURCE_DESCRIPTOR *NextResourceHob;\r
266 EFI_HOB_RESOURCE_DESCRIPTOR *CurrentResourceHob;\r
267 EFI_PEI_HOB_POINTERS CurrentHob;\r
268 EFI_PEI_HOB_POINTERS Hob;\r
269 EFI_PEI_HOB_POINTERS NextHob;\r
270 EFI_PHYSICAL_ADDRESS MaxMemoryBaseAddress;\r
271 UINT64 MaxMemoryLength;\r
272 //\r
273 // Initialize Local Variables\r
274 //\r
275 CurrentResourceHob = NULL;\r
276 ResourceHob = NULL;\r
277 NextResourceHob = NULL;\r
278 MaxMemoryBaseAddress = 0;\r
279 MaxMemoryLength = 0;\r
280 HighAddress = 0;\r
281 TopLoadingAddress = 0;\r
282 MemoryRangeEnd = 0;\r
283 CurrentHob.Raw = PrivateData->HobList.Raw;\r
284 PeiMemorySize = PrivateData->PhysicalMemoryLength;\r
285 //\r
286 // The top reserved memory include 3 parts: the topest range is for DXE core initialization with the size MINIMUM_INITIAL_MEMORY_SIZE\r
287 // then RuntimeCodePage range and Boot time code range.\r
288 // \r
289 TotalReservedMemorySize = EFI_PAGES_TO_SIZE(PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber)+ PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber))\r
290 + MINIMUM_INITIAL_MEMORY_SIZE; \r
291 \r
292 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: PcdLoadFixAddressRuntimeCodePageNumber= %x.\n", PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber)));\r
293 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: PcdLoadFixAddressBootTimeCodePageNumber= %x.\n", PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber)));\r
294 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: PcdLoadFixAddressPeiCodePageNumber= %x.\n", PcdGet32(PcdLoadFixAddressPeiCodePageNumber))); \r
295 //\r
296 // PEI memory range lies below the top reserved memory\r
297 // \r
298 TotalReservedMemorySize += PeiMemorySize;\r
299 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: Total Reserved Memory Size = %lx.\n", TotalReservedMemorySize));\r
300 //\r
301 // Loop through the system memory typed hob to merge the adjacent memory range \r
302 //\r
303 for (Hob.Raw = PrivateData->HobList.Raw; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
304 // \r
305 // See if this is a resource descriptor HOB \r
306 //\r
307 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
308 \r
309 ResourceHob = Hob.ResourceDescriptor; \r
310 //\r
311 // If range described in this hob is not system memory or heigher than MAX_ADDRESS, ignored.\r
312 //\r
313 if (ResourceHob->ResourceType != EFI_RESOURCE_SYSTEM_MEMORY &&\r
314 ResourceHob->PhysicalStart + ResourceHob->ResourceLength > MAX_ADDRESS) {\r
315 continue;\r
316 } \r
317 \r
318 for (NextHob.Raw = PrivateData->HobList.Raw; !END_OF_HOB_LIST(NextHob); NextHob.Raw = GET_NEXT_HOB(NextHob)) { \r
319 if (NextHob.Raw == Hob.Raw){\r
320 continue;\r
321 } \r
322 //\r
323 // See if this is a resource descriptor HOB\r
324 //\r
325 if (GET_HOB_TYPE (NextHob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
326 \r
327 NextResourceHob = NextHob.ResourceDescriptor;\r
328 //\r
329 // test if range described in this NextResourceHob is system memory and have the same attribute.\r
330 // Note: Here is a assumption that system memory should always be healthy even without test.\r
331 // \r
332 if (NextResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r
333 (((NextResourceHob->ResourceAttribute^ResourceHob->ResourceAttribute)&(~EFI_RESOURCE_ATTRIBUTE_TESTED)) == 0)){\r
334 \r
335 //\r
336 // See if the memory range described in ResourceHob and NextResourceHob is adjacent\r
337 //\r
338 if ((ResourceHob->PhysicalStart <= NextResourceHob->PhysicalStart && \r
339 ResourceHob->PhysicalStart + ResourceHob->ResourceLength >= NextResourceHob->PhysicalStart)|| \r
340 (ResourceHob->PhysicalStart >= NextResourceHob->PhysicalStart&&\r
341 ResourceHob->PhysicalStart <= NextResourceHob->PhysicalStart + NextResourceHob->ResourceLength)) {\r
342 \r
343 MemoryRangeEnd = ((ResourceHob->PhysicalStart + ResourceHob->ResourceLength)>(NextResourceHob->PhysicalStart + NextResourceHob->ResourceLength)) ?\r
344 (ResourceHob->PhysicalStart + ResourceHob->ResourceLength):(NextResourceHob->PhysicalStart + NextResourceHob->ResourceLength);\r
345 \r
346 ResourceHob->PhysicalStart = (ResourceHob->PhysicalStart < NextResourceHob->PhysicalStart) ? \r
347 ResourceHob->PhysicalStart : NextResourceHob->PhysicalStart;\r
348 \r
349 \r
350 ResourceHob->ResourceLength = (MemoryRangeEnd - ResourceHob->PhysicalStart);\r
351 \r
352 ResourceHob->ResourceAttribute = ResourceHob->ResourceAttribute & (~EFI_RESOURCE_ATTRIBUTE_TESTED);\r
353 //\r
354 // Delete the NextResourceHob by marking it as unused.\r
355 //\r
356 GET_HOB_TYPE (NextHob) = EFI_HOB_TYPE_UNUSED;\r
357 \r
358 }\r
359 }\r
360 } \r
361 }\r
362 } \r
363 }\r
364 //\r
365 // Try to find and validate the TOP address.\r
366 // \r
367 if ((INT64)FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) > 0 ) {\r
368 //\r
369 // The LMFA feature is enabled as load module at fixed absolute address.\r
370 //\r
371 TopLoadingAddress = (EFI_PHYSICAL_ADDRESS)FixedPcdGet64(PcdLoadModuleAtFixAddressEnable);\r
372 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: Loading module at fixed absolute address.\n"));\r
373 //\r
374 // validate the Address. Loop the resource descriptor HOB to make sure the address is in valid memory range\r
375 //\r
376 if ((TopLoadingAddress & EFI_PAGE_MASK) != 0) {\r
377 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED ERROR:Top Address %lx is invalid since top address should be page align. \n", TopLoadingAddress)); \r
378 ASSERT (FALSE); \r
379 }\r
380 //\r
381 // Search for a memory region that is below MAX_ADDRESS and in which TopLoadingAddress lies \r
382 //\r
383 for (Hob.Raw = PrivateData->HobList.Raw; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
384 //\r
385 // See if this is a resource descriptor HOB\r
386 //\r
387 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
388\r
389 ResourceHob = Hob.ResourceDescriptor;\r
390 //\r
391 // See if this resource descrior HOB describes tested system memory below MAX_ADDRESS\r
392 // \r
393 if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r
394 ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MAX_ADDRESS) {\r
395 //\r
396 // See if Top address specified by user is valid.\r
397 //\r
398 if (ResourceHob->PhysicalStart + TotalReservedMemorySize < TopLoadingAddress && \r
399 (ResourceHob->PhysicalStart + ResourceHob->ResourceLength - MINIMUM_INITIAL_MEMORY_SIZE) >= TopLoadingAddress) {\r
400 CurrentResourceHob = ResourceHob; \r
401 CurrentHob = Hob;\r
402 break;\r
403 }\r
404 }\r
405 } \r
406 } \r
407 if (CurrentResourceHob != NULL) {\r
408 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO:Top Address %lx is valid \n", TopLoadingAddress));\r
409 TopLoadingAddress += MINIMUM_INITIAL_MEMORY_SIZE; \r
410 } else {\r
411 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED ERROR:Top Address %lx is invalid \n", TopLoadingAddress)); \r
412 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED ERROR:The recommended Top Address for the platform is: \n")); \r
413 //\r
414 // Print the recomended Top address range.\r
415 // \r
416 for (Hob.Raw = PrivateData->HobList.Raw; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
417 //\r
418 // See if this is a resource descriptor HOB\r
419 //\r
420 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
421 \r
422 ResourceHob = Hob.ResourceDescriptor;\r
423 //\r
424 // See if this resource descrior HOB describes tested system memory below MAX_ADDRESS\r
425 // \r
426 if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY &&\r
427 ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MAX_ADDRESS) {\r
428 //\r
429 // See if Top address specified by user is valid.\r
430 //\r
431 if (ResourceHob->ResourceLength > TotalReservedMemorySize) {\r
432 DEBUG ((EFI_D_INFO, "(%lx, %lx)\n", \r
433 (ResourceHob->PhysicalStart + TotalReservedMemorySize -MINIMUM_INITIAL_MEMORY_SIZE), \r
434 (ResourceHob->PhysicalStart + ResourceHob->ResourceLength -MINIMUM_INITIAL_MEMORY_SIZE) \r
435 )); \r
436 }\r
437 }\r
438 }\r
439 } \r
440 //\r
441 // Assert here \r
442 //\r
443 ASSERT (FALSE); \r
444 } \r
445 } else {\r
446 //\r
447 // The LMFA feature is enabled as load module at fixed offset relative to TOLM\r
448 // Parse the Hob list to find the topest available memory. Generally it is (TOLM - TSEG)\r
449 //\r
450 //\r
451 // Search for a tested memory region that is below MAX_ADDRESS\r
452 //\r
453 for (Hob.Raw = PrivateData->HobList.Raw; !END_OF_HOB_LIST(Hob); Hob.Raw = GET_NEXT_HOB(Hob)) {\r
454 //\r
455 // See if this is a resource descriptor HOB \r
456 //\r
457 if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_RESOURCE_DESCRIPTOR) {\r
458 \r
459 ResourceHob = Hob.ResourceDescriptor; \r
460 //\r
461 // See if this resource descrior HOB describes tested system memory below MAX_ADDRESS\r
462 //\r
463 if (ResourceHob->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY && \r
464 ResourceHob->PhysicalStart + ResourceHob->ResourceLength <= MAX_ADDRESS &&\r
465 ResourceHob->ResourceLength > TotalReservedMemorySize) {\r
466 //\r
467 // See if this is the highest largest system memory region below MaxAddress\r
468 //\r
469 if (ResourceHob->PhysicalStart > HighAddress) {\r
470 CurrentResourceHob = ResourceHob;\r
471 CurrentHob = Hob;\r
472 HighAddress = CurrentResourceHob->PhysicalStart;\r
473 }\r
474 }\r
475 } \r
476 }\r
477 if (CurrentResourceHob == NULL) {\r
478 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED ERROR:The System Memory is too small\n")); \r
479 //\r
480 // Assert here \r
481 //\r
482 ASSERT (FALSE); \r
483 } else {\r
484 TopLoadingAddress = CurrentResourceHob->PhysicalStart + CurrentResourceHob->ResourceLength ; \r
485 } \r
486 }\r
487 \r
488 if (CurrentResourceHob != NULL) {\r
489 //\r
490 // rebuild hob for PEI memmory and reserved memory\r
491 //\r
492 BuildResourceDescriptorHob (\r
493 EFI_RESOURCE_SYSTEM_MEMORY, // MemoryType,\r
494 (\r
495 EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
496 EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
497 EFI_RESOURCE_ATTRIBUTE_TESTED |\r
498 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
499 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
500 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
501 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r
502 ),\r
503 (TopLoadingAddress - TotalReservedMemorySize), // MemoryBegin\r
504 TotalReservedMemorySize // MemoryLength\r
505 );\r
506 //\r
507 // rebuild hob for the remain memory if necessary\r
508 //\r
509 if (CurrentResourceHob->PhysicalStart < TopLoadingAddress - TotalReservedMemorySize) {\r
510 BuildResourceDescriptorHob (\r
511 EFI_RESOURCE_SYSTEM_MEMORY, // MemoryType,\r
512 (\r
513 EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
514 EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
515 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
516 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
517 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
518 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r
519 ),\r
520 CurrentResourceHob->PhysicalStart, // MemoryBegin\r
521 (TopLoadingAddress - TotalReservedMemorySize - CurrentResourceHob->PhysicalStart) // MemoryLength\r
522 );\r
523 }\r
524 if (CurrentResourceHob->PhysicalStart + CurrentResourceHob->ResourceLength > TopLoadingAddress ) {\r
525 BuildResourceDescriptorHob (\r
526 EFI_RESOURCE_SYSTEM_MEMORY, \r
527 (\r
528 EFI_RESOURCE_ATTRIBUTE_PRESENT |\r
529 EFI_RESOURCE_ATTRIBUTE_INITIALIZED |\r
530 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |\r
531 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |\r
532 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |\r
533 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE\r
534 ),\r
535 TopLoadingAddress, \r
536 (CurrentResourceHob->PhysicalStart + CurrentResourceHob->ResourceLength - TopLoadingAddress) \r
537 );\r
538 }\r
539 //\r
540 // Delete CurrentHob by marking it as unused since the the memory range described by is rebuilt.\r
541 //\r
542 GET_HOB_TYPE (CurrentHob) = EFI_HOB_TYPE_UNUSED; \r
543 }\r
544\r
545 //\r
546 // Cache the top address for Loading Module at Fixed Address feature\r
547 //\r
548 PrivateData->LoadModuleAtFixAddressTopAddress = TopLoadingAddress - MINIMUM_INITIAL_MEMORY_SIZE;\r
549 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: Top address = %lx\n", PrivateData->LoadModuleAtFixAddressTopAddress)); \r
550 //\r
551 // reinstall the PEI memory relative to TopLoadingAddress\r
552 //\r
553 PrivateData->PhysicalMemoryBegin = TopLoadingAddress - TotalReservedMemorySize;\r
554 PrivateData->FreePhysicalMemoryTop = PrivateData->PhysicalMemoryBegin + PeiMemorySize;\r
555}\r
556/**\r
557 Conduct PEIM dispatch.\r
558\r
559 @param SecCoreData Points to a data structure containing information about the PEI core's operating\r
560 environment, such as the size and location of temporary RAM, the stack location and\r
561 the BFV location.\r
562 @param Private Pointer to the private data passed in from caller\r
563\r
564**/\r
565VOID\r
566PeiDispatcher (\r
567 IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,\r
568 IN PEI_CORE_INSTANCE *Private\r
569 )\r
570{\r
571 EFI_STATUS Status;\r
572 UINT32 Index1;\r
573 UINT32 Index2;\r
574 CONST EFI_PEI_SERVICES **PeiServices;\r
575 EFI_PEI_FILE_HANDLE PeimFileHandle;\r
576 UINTN FvCount;\r
577 UINTN PeimCount;\r
578 UINT32 AuthenticationState;\r
579 EFI_PHYSICAL_ADDRESS EntryPoint;\r
580 EFI_PEIM_ENTRY_POINT2 PeimEntryPoint;\r
581 UINTN SaveCurrentPeimCount;\r
582 UINTN SaveCurrentFvCount;\r
583 EFI_PEI_FILE_HANDLE SaveCurrentFileHandle;\r
584 PEIM_FILE_HANDLE_EXTENDED_DATA ExtendedData;\r
585 EFI_PHYSICAL_ADDRESS NewPermenentMemoryBase;\r
586 TEMPORARY_RAM_SUPPORT_PPI *TemporaryRamSupportPpi;\r
587 EFI_HOB_HANDOFF_INFO_TABLE *OldHandOffTable;\r
588 EFI_HOB_HANDOFF_INFO_TABLE *NewHandOffTable;\r
589 INTN StackOffset;\r
590 INTN HeapOffset;\r
591 PEI_CORE_INSTANCE *PrivateInMem;\r
592 UINT64 NewPeiStackSize;\r
593 UINT64 OldPeiStackSize;\r
594 UINT64 StackGap;\r
595 EFI_FV_FILE_INFO FvFileInfo;\r
596 UINTN OldCheckingTop;\r
597 UINTN OldCheckingBottom;\r
598 PEI_CORE_FV_HANDLE *CoreFvHandle;\r
599 VOID *LoadFixPeiCodeBegin;\r
600\r
601 PeiServices = (CONST EFI_PEI_SERVICES **) &Private->PS;\r
602 PeimEntryPoint = NULL;\r
603 PeimFileHandle = NULL;\r
604 EntryPoint = 0;\r
605\r
606 if ((Private->PeiMemoryInstalled) && (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
607 //\r
608 // Once real memory is available, shadow the RegisterForShadow modules. And meanwhile\r
609 // update the modules' status from PEIM_STATE_REGISITER_FOR_SHADOW to PEIM_STATE_DONE.\r
610 //\r
611 SaveCurrentPeimCount = Private->CurrentPeimCount;\r
612 SaveCurrentFvCount = Private->CurrentPeimFvCount;\r
613 SaveCurrentFileHandle = Private->CurrentFileHandle;\r
614\r
615 for (Index1 = 0; Index1 <= SaveCurrentFvCount; Index1++) {\r
616 for (Index2 = 0; (Index2 < PcdGet32 (PcdPeiCoreMaxPeimPerFv)) && (Private->Fv[Index1].FvFileHandles[Index2] != NULL); Index2++) {\r
617 if (Private->Fv[Index1].PeimState[Index2] == PEIM_STATE_REGISITER_FOR_SHADOW) {\r
618 PeimFileHandle = Private->Fv[Index1].FvFileHandles[Index2];\r
619 Status = PeiLoadImage (\r
620 (CONST EFI_PEI_SERVICES **) &Private->PS,\r
621 PeimFileHandle,\r
622 PEIM_STATE_REGISITER_FOR_SHADOW,\r
623 &EntryPoint,\r
624 &AuthenticationState\r
625 );\r
626 if (Status == EFI_SUCCESS) {\r
627 //\r
628 // PEIM_STATE_REGISITER_FOR_SHADOW move to PEIM_STATE_DONE\r
629 //\r
630 Private->Fv[Index1].PeimState[Index2]++;\r
631 Private->CurrentFileHandle = PeimFileHandle;\r
632 Private->CurrentPeimFvCount = Index1;\r
633 Private->CurrentPeimCount = Index2;\r
634 //\r
635 // Call the PEIM entry point\r
636 //\r
637 PeimEntryPoint = (EFI_PEIM_ENTRY_POINT2)(UINTN)EntryPoint;\r
638\r
639 PERF_START (PeimFileHandle, "PEIM", NULL, 0);\r
640 PeimEntryPoint(PeimFileHandle, (const EFI_PEI_SERVICES **) &Private->PS);\r
641 PERF_END (PeimFileHandle, "PEIM", NULL, 0);\r
642 }\r
643\r
644 //\r
645 // Process the Notify list and dispatch any notifies for\r
646 // newly installed PPIs.\r
647 //\r
648 ProcessNotifyList (Private);\r
649 }\r
650 }\r
651 }\r
652 Private->CurrentFileHandle = SaveCurrentFileHandle;\r
653 Private->CurrentPeimFvCount = SaveCurrentFvCount;\r
654 Private->CurrentPeimCount = SaveCurrentPeimCount;\r
655 }\r
656\r
657 //\r
658 // This is the main dispatch loop. It will search known FVs for PEIMs and\r
659 // attempt to dispatch them. If any PEIM gets dispatched through a single\r
660 // pass of the dispatcher, it will start over from the Bfv again to see\r
661 // if any new PEIMs dependencies got satisfied. With a well ordered\r
662 // FV where PEIMs are found in the order their dependencies are also\r
663 // satisfied, this dipatcher should run only once.\r
664 //\r
665 do {\r
666 //\r
667 // In case that reenter PeiCore happens, the last pass record is still available. \r
668 //\r
669 if (!Private->PeimDispatcherReenter) {\r
670 Private->PeimNeedingDispatch = FALSE;\r
671 Private->PeimDispatchOnThisPass = FALSE;\r
672 } else {\r
673 Private->PeimDispatcherReenter = FALSE;\r
674 }\r
675 \r
676 for (FvCount = Private->CurrentPeimFvCount; FvCount < Private->FvCount; FvCount++) {\r
677 CoreFvHandle = FindNextCoreFvHandle (Private, FvCount);\r
678 ASSERT (CoreFvHandle != NULL);\r
679 \r
680 //\r
681 // If the FV has corresponding EFI_PEI_FIRMWARE_VOLUME_PPI instance, then dispatch it.\r
682 //\r
683 if (CoreFvHandle->FvPpi == NULL) {\r
684 continue;\r
685 }\r
686 \r
687 Private->CurrentPeimFvCount = FvCount;\r
688\r
689 if (Private->CurrentPeimCount == 0) {\r
690 //\r
691 // When going through each FV, at first, search Apriori file to\r
692 // reorder all PEIMs to ensure the PEIMs in Apriori file to get\r
693 // dispatch at first.\r
694 //\r
695 DiscoverPeimsAndOrderWithApriori (Private, CoreFvHandle);\r
696 }\r
697\r
698 //\r
699 // Start to dispatch all modules within the current Fv.\r
700 //\r
701 for (PeimCount = Private->CurrentPeimCount;\r
702 (PeimCount < PcdGet32 (PcdPeiCoreMaxPeimPerFv)) && (Private->CurrentFvFileHandles[PeimCount] != NULL);\r
703 PeimCount++) {\r
704 Private->CurrentPeimCount = PeimCount;\r
705 PeimFileHandle = Private->CurrentFileHandle = Private->CurrentFvFileHandles[PeimCount];\r
706\r
707 if (Private->Fv[FvCount].PeimState[PeimCount] == PEIM_STATE_NOT_DISPATCHED) {\r
708 if (!DepexSatisfied (Private, PeimFileHandle, PeimCount)) {\r
709 Private->PeimNeedingDispatch = TRUE;\r
710 } else {\r
711 Status = CoreFvHandle->FvPpi->GetFileInfo (CoreFvHandle->FvPpi, PeimFileHandle, &FvFileInfo);\r
712 ASSERT_EFI_ERROR (Status);\r
713 if (FvFileInfo.FileType == EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) {\r
714 //\r
715 // For Fv type file, Produce new FV PPI and FV hob\r
716 //\r
717 Status = ProcessFvFile (&Private->Fv[FvCount], PeimFileHandle);\r
718 AuthenticationState = 0;\r
719 } else {\r
720 //\r
721 // For PEIM driver, Load its entry point\r
722 //\r
723 Status = PeiLoadImage (\r
724 PeiServices,\r
725 PeimFileHandle,\r
726 PEIM_STATE_NOT_DISPATCHED,\r
727 &EntryPoint,\r
728 &AuthenticationState\r
729 );\r
730 }\r
731\r
732 if ((Status == EFI_SUCCESS)) {\r
733 //\r
734 // The PEIM has its dependencies satisfied, and its entry point\r
735 // has been found, so invoke it.\r
736 //\r
737 PERF_START (PeimFileHandle, "PEIM", NULL, 0);\r
738\r
739 ExtendedData.Handle = (EFI_HANDLE)PeimFileHandle;\r
740\r
741 REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r
742 EFI_PROGRESS_CODE,\r
743 (EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_BEGIN),\r
744 (VOID *)(&ExtendedData),\r
745 sizeof (ExtendedData)\r
746 );\r
747\r
748 Status = VerifyPeim (Private, CoreFvHandle->FvHandle, PeimFileHandle);\r
749 if (Status != EFI_SECURITY_VIOLATION && (AuthenticationState == 0)) {\r
750 //\r
751 // PEIM_STATE_NOT_DISPATCHED move to PEIM_STATE_DISPATCHED\r
752 //\r
753 Private->Fv[FvCount].PeimState[PeimCount]++;\r
754\r
755 if (FvFileInfo.FileType != EFI_FV_FILETYPE_FIRMWARE_VOLUME_IMAGE) {\r
756 //\r
757 // Call the PEIM entry point for PEIM driver\r
758 //\r
759 PeimEntryPoint = (EFI_PEIM_ENTRY_POINT2)(UINTN)EntryPoint;\r
760 PeimEntryPoint (PeimFileHandle, (const EFI_PEI_SERVICES **) PeiServices);\r
761 }\r
762\r
763 Private->PeimDispatchOnThisPass = TRUE;\r
764 }\r
765\r
766 REPORT_STATUS_CODE_WITH_EXTENDED_DATA (\r
767 EFI_PROGRESS_CODE,\r
768 (EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT_BEGIN),\r
769 (VOID *)(&ExtendedData),\r
770 sizeof (ExtendedData)\r
771 );\r
772 PERF_END (PeimFileHandle, "PEIM", NULL, 0);\r
773\r
774 }\r
775\r
776 if (Private->SwitchStackSignal) {\r
777 //\r
778 // Before switch stack from temporary memory to permenent memory, caculate the heap and stack\r
779 // usage in temporary memory for debuging.\r
780 //\r
781 DEBUG_CODE_BEGIN ();\r
782 UINT32 *StackPointer;\r
783 \r
784 for (StackPointer = (UINT32*)SecCoreData->StackBase;\r
785 (StackPointer < (UINT32*)((UINTN)SecCoreData->StackBase + SecCoreData->StackSize)) \\r
786 && (*StackPointer == INIT_CAR_VALUE);\r
787 StackPointer ++);\r
788 \r
789 DEBUG ((EFI_D_INFO, "Total temporary memory: %d bytes.\n", (UINT32)SecCoreData->TemporaryRamSize));\r
790 DEBUG ((EFI_D_INFO, " temporary memory stack ever used: %d bytes.\n",\r
791 (SecCoreData->StackSize - ((UINTN) StackPointer - (UINTN)SecCoreData->StackBase))\r
792 ));\r
793 DEBUG ((EFI_D_INFO, " temporary memory heap used: %d bytes.\n",\r
794 ((UINTN) Private->HobList.HandoffInformationTable->EfiFreeMemoryBottom -\r
795 (UINTN) Private->HobList.Raw)\r
796 ));\r
797 DEBUG_CODE_END ();\r
798 \r
799 if (FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) != 0) {\r
800 //\r
801 // Loading Module at Fixed Address is enabled\r
802 //\r
803 PeiLoadFixAddressHook(Private);\r
804 }\r
805 \r
806 //\r
807 // Reserve the size of new stack at bottom of physical memory\r
808 //\r
809 OldPeiStackSize = (UINT64) SecCoreData->StackSize;\r
810 NewPeiStackSize = (RShiftU64 (Private->PhysicalMemoryLength, 1) + EFI_PAGE_MASK) & ~EFI_PAGE_MASK;\r
811 if (PcdGet32(PcdPeiCoreMaxPeiStackSize) > (UINT32) NewPeiStackSize) {\r
812 Private->StackSize = NewPeiStackSize;\r
813 } else {\r
814 Private->StackSize = PcdGet32(PcdPeiCoreMaxPeiStackSize);\r
815 }\r
816\r
817 //\r
818 // In theory, the size of new stack in permenent memory should large than\r
819 // size of old stack in temporary memory.\r
820 // But if new stack is smaller than the size of old stack, we also reserve\r
821 // the size of old stack at bottom of permenent memory.\r
822 //\r
823 DEBUG ((EFI_D_INFO, "Old Stack size %d, New stack size %d\n", (INT32) OldPeiStackSize, (INT32) Private->StackSize));\r
824 ASSERT (Private->StackSize >= OldPeiStackSize);\r
825 StackGap = Private->StackSize - OldPeiStackSize;\r
826\r
827 //\r
828 // Update HandOffHob for new installed permenent memory\r
829 //\r
830 OldHandOffTable = Private->HobList.HandoffInformationTable;\r
831 OldCheckingBottom = (UINTN)(SecCoreData->TemporaryRamBase);\r
832 OldCheckingTop = (UINTN)(OldCheckingBottom + SecCoreData->TemporaryRamSize);\r
833\r
834 //\r
835 // The whole temporary memory will be migrated to physical memory.\r
836 // CAUTION: The new base is computed accounding to gap of new stack.\r
837 //\r
838 NewPermenentMemoryBase = Private->PhysicalMemoryBegin + StackGap;\r
839 \r
840 //\r
841 // Caculate stack offset and heap offset between temporary memory and new permement \r
842 // memory seperately.\r
843 //\r
844 StackOffset = (UINTN) NewPermenentMemoryBase - (UINTN) SecCoreData->StackBase;\r
845 HeapOffset = (INTN) ((UINTN) Private->PhysicalMemoryBegin + Private->StackSize - \\r
846 (UINTN) SecCoreData->PeiTemporaryRamBase);\r
847 DEBUG ((EFI_D_INFO, "Heap Offset = 0x%lX Stack Offset = 0x%lX\n", (INT64)HeapOffset, (INT64)StackOffset));\r
848 \r
849 //\r
850 // Caculate new HandOffTable and PrivateData address in permenet memory's stack\r
851 //\r
852 NewHandOffTable = (EFI_HOB_HANDOFF_INFO_TABLE *)((UINTN)OldHandOffTable + HeapOffset);\r
853 PrivateInMem = (PEI_CORE_INSTANCE *)((UINTN) (VOID*) Private + StackOffset);\r
854\r
855 //\r
856 // TemporaryRamSupportPpi is produced by platform's SEC\r
857 //\r
858 Status = PeiLocatePpi (\r
859 (CONST EFI_PEI_SERVICES **) PeiServices,\r
860 &gEfiTemporaryRamSupportPpiGuid,\r
861 0,\r
862 NULL,\r
863 (VOID**)&TemporaryRamSupportPpi\r
864 );\r
865\r
866\r
867 if (!EFI_ERROR (Status)) {\r
868 //\r
869 // Temporary Ram support Ppi is provided by platform, it will copy \r
870 // temporary memory to permenent memory and do stack switching.\r
871 // After invoken temporary Ram support, following code's stack is in \r
872 // memory but not in temporary memory.\r
873 //\r
874 TemporaryRamSupportPpi->TemporaryRamMigration (\r
875 (CONST EFI_PEI_SERVICES **) PeiServices,\r
876 (EFI_PHYSICAL_ADDRESS)(UINTN) SecCoreData->TemporaryRamBase,\r
877 (EFI_PHYSICAL_ADDRESS)(UINTN) NewPermenentMemoryBase,\r
878 SecCoreData->TemporaryRamSize\r
879 );\r
880\r
881 } else {\r
882 //\r
883 // In IA32/x64/Itanium architecture, we need platform provide\r
884 // TEMPORAY_RAM_MIGRATION_PPI.\r
885 //\r
886 ASSERT (FALSE);\r
887 }\r
888\r
889\r
890 //\r
891 //\r
892 // Fixup the PeiCore's private data\r
893 //\r
894 PrivateInMem->PS = &PrivateInMem->ServiceTableShadow;\r
895 PrivateInMem->CpuIo = &PrivateInMem->ServiceTableShadow.CpuIo;\r
896 PrivateInMem->HobList.Raw = (VOID*) ((UINTN) PrivateInMem->HobList.Raw + HeapOffset);\r
897 PrivateInMem->StackBase = (EFI_PHYSICAL_ADDRESS)(((UINTN)PrivateInMem->PhysicalMemoryBegin + EFI_PAGE_MASK) & ~EFI_PAGE_MASK);\r
898\r
899 PeiServices = (CONST EFI_PEI_SERVICES **) &PrivateInMem->PS;\r
900\r
901 //\r
902 // Fixup for PeiService's address\r
903 //\r
904 SetPeiServicesTablePointer(PeiServices);\r
905\r
906 //\r
907 // Update HandOffHob for new installed permenent memory\r
908 //\r
909 NewHandOffTable->EfiEndOfHobList =\r
910 (EFI_PHYSICAL_ADDRESS)((UINTN) NewHandOffTable->EfiEndOfHobList + HeapOffset);\r
911 NewHandOffTable->EfiMemoryTop = PrivateInMem->PhysicalMemoryBegin +\r
912 PrivateInMem->PhysicalMemoryLength;\r
913 NewHandOffTable->EfiMemoryBottom = PrivateInMem->PhysicalMemoryBegin;\r
914 NewHandOffTable->EfiFreeMemoryTop = PrivateInMem->FreePhysicalMemoryTop;\r
915 NewHandOffTable->EfiFreeMemoryBottom = NewHandOffTable->EfiEndOfHobList +\r
916 sizeof (EFI_HOB_GENERIC_HEADER);\r
917\r
918 //\r
919 // We need convert the PPI desciptor's pointer\r
920 //\r
921 ConvertPpiPointers (PrivateInMem, \r
922 OldCheckingBottom, \r
923 OldCheckingTop, \r
924 HeapOffset\r
925 );\r
926\r
927 DEBUG ((EFI_D_INFO, "Stack Hob: BaseAddress=0x%lX Length=0x%lX\n",\r
928 PrivateInMem->StackBase,\r
929 PrivateInMem->StackSize));\r
930 BuildStackHob (PrivateInMem->StackBase, PrivateInMem->StackSize);\r
931\r
932 //\r
933 // After the whole temporary memory is migrated, then we can allocate page in\r
934 // permenent memory.\r
935 //\r
936 PrivateInMem->PeiMemoryInstalled = TRUE;\r
937\r
938 //\r
939 // Indicate that PeiCore reenter\r
940 //\r
941 PrivateInMem->PeimDispatcherReenter = TRUE;\r
942 \r
943 if (FixedPcdGet64(PcdLoadModuleAtFixAddressEnable) != 0) {\r
944 //\r
945 // if Loading Module at Fixed Address is enabled, This is the first invoke to page \r
946 // allocation for Pei Core segment. This memory segment should be reserved for loading PEIM\r
947 //\r
948 LoadFixPeiCodeBegin = AllocatePages((UINTN)PcdGet32(PcdLoadFixAddressPeiCodePageNumber));\r
949 DEBUG ((EFI_D_INFO, "LOADING MODULE FIXED INFO: PeiCodeBegin = %x, PeiCodeTop= %x\n", (UINTN)LoadFixPeiCodeBegin, ((UINTN)LoadFixPeiCodeBegin) + PcdGet32(PcdLoadFixAddressPeiCodePageNumber) * EFI_PAGE_SIZE)); \r
950 //\r
951 // if Loading Module at Fixed Address is enabled, allocate the PEI code memory range usage bit map array.\r
952 // Every bit in the array indicate the status of the corresponding memory page, available or not\r
953 //\r
954 PrivateInMem->PeiCodeMemoryRangeUsageBitMap = AllocateZeroPool (((PcdGet32(PcdLoadFixAddressPeiCodePageNumber)>>6) + 1)*sizeof(UINT64));\r
955 }\r
956 //\r
957 // Shadow PEI Core. When permanent memory is avaiable, shadow\r
958 // PEI Core and PEIMs to get high performance.\r
959 //\r
960 PrivateInMem->ShadowedPeiCore = ShadowPeiCore (\r
961 PeiServices,\r
962 PrivateInMem\r
963 );\r
964 //\r
965 // Process the Notify list and dispatch any notifies for\r
966 // newly installed PPIs.\r
967 //\r
968 ProcessNotifyList (PrivateInMem);\r
969\r
970 //\r
971 // Entry PEI Phase 2\r
972 //\r
973 PeiCore (SecCoreData, NULL, PrivateInMem);\r
974\r
975 //\r
976 // Code should not come here\r
977 //\r
978 ASSERT_EFI_ERROR(FALSE);\r
979 }\r
980\r
981 //\r
982 // Process the Notify list and dispatch any notifies for\r
983 // newly installed PPIs.\r
984 //\r
985 ProcessNotifyList (Private);\r
986\r
987 if ((Private->PeiMemoryInstalled) && (Private->Fv[FvCount].PeimState[PeimCount] == PEIM_STATE_REGISITER_FOR_SHADOW) && \\r
988 (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
989 //\r
990 // If memory is availble we shadow images by default for performance reasons.\r
991 // We call the entry point a 2nd time so the module knows it's shadowed.\r
992 //\r
993 //PERF_START (PeiServices, L"PEIM", PeimFileHandle, 0);\r
994 ASSERT (PeimEntryPoint != NULL);\r
995 PeimEntryPoint (PeimFileHandle, (const EFI_PEI_SERVICES **) PeiServices);\r
996 //PERF_END (PeiServices, L"PEIM", PeimFileHandle, 0);\r
997\r
998 //\r
999 // PEIM_STATE_REGISITER_FOR_SHADOW move to PEIM_STATE_DONE\r
1000 //\r
1001 Private->Fv[FvCount].PeimState[PeimCount]++;\r
1002\r
1003 //\r
1004 // Process the Notify list and dispatch any notifies for\r
1005 // newly installed PPIs.\r
1006 //\r
1007 ProcessNotifyList (Private);\r
1008 }\r
1009 }\r
1010 }\r
1011 }\r
1012\r
1013 //\r
1014 // We set to NULL here to optimize the 2nd entry to this routine after\r
1015 // memory is found. This reprevents rescanning of the FV. We set to\r
1016 // NULL here so we start at the begining of the next FV\r
1017 //\r
1018 Private->CurrentFileHandle = NULL;\r
1019 Private->CurrentPeimCount = 0;\r
1020 //\r
1021 // Before walking through the next FV,Private->CurrentFvFileHandles[]should set to NULL\r
1022 //\r
1023 SetMem (Private->CurrentFvFileHandles, sizeof (Private->CurrentFvFileHandles), 0);\r
1024 }\r
1025\r
1026 //\r
1027 // Before making another pass, we should set Private->CurrentPeimFvCount =0 to go\r
1028 // through all the FV.\r
1029 //\r
1030 Private->CurrentPeimFvCount = 0;\r
1031\r
1032 //\r
1033 // PeimNeedingDispatch being TRUE means we found a PEIM that did not get\r
1034 // dispatched. So we need to make another pass\r
1035 //\r
1036 // PeimDispatchOnThisPass being TRUE means we dispatched a PEIM on this\r
1037 // pass. If we did not dispatch a PEIM there is no point in trying again\r
1038 // as it will fail the next time too (nothing has changed).\r
1039 //\r
1040 } while (Private->PeimNeedingDispatch && Private->PeimDispatchOnThisPass);\r
1041\r
1042}\r
1043\r
1044/**\r
1045 Initialize the Dispatcher's data members\r
1046\r
1047 @param PrivateData PeiCore's private data structure\r
1048 @param OldCoreData Old data from SecCore\r
1049 NULL if being run in non-permament memory mode.\r
1050 @param SecCoreData Points to a data structure containing information about the PEI core's operating\r
1051 environment, such as the size and location of temporary RAM, the stack location and\r
1052 the BFV location.\r
1053\r
1054 @return None.\r
1055\r
1056**/\r
1057VOID\r
1058InitializeDispatcherData (\r
1059 IN PEI_CORE_INSTANCE *PrivateData,\r
1060 IN PEI_CORE_INSTANCE *OldCoreData,\r
1061 IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData\r
1062 )\r
1063{\r
1064 if (OldCoreData == NULL) {\r
1065 PrivateData->PeimDispatcherReenter = FALSE;\r
1066 PeiInitializeFv (PrivateData, SecCoreData);\r
1067 } else {\r
1068 PeiReinitializeFv (PrivateData);\r
1069 }\r
1070\r
1071 return;\r
1072}\r
1073\r
1074/**\r
1075 This routine parses the Dependency Expression, if available, and\r
1076 decides if the module can be executed.\r
1077\r
1078\r
1079 @param Private PeiCore's private data structure\r
1080 @param FileHandle PEIM's file handle\r
1081 @param PeimCount Peim count in all dispatched PEIMs.\r
1082\r
1083 @retval TRUE Can be dispatched\r
1084 @retval FALSE Cannot be dispatched\r
1085\r
1086**/\r
1087BOOLEAN\r
1088DepexSatisfied (\r
1089 IN PEI_CORE_INSTANCE *Private,\r
1090 IN EFI_PEI_FILE_HANDLE FileHandle,\r
1091 IN UINTN PeimCount\r
1092 )\r
1093{\r
1094 EFI_STATUS Status;\r
1095 VOID *DepexData;\r
1096\r
1097 if (PeimCount < Private->AprioriCount) {\r
1098 //\r
1099 // If its in the A priori file then we set Depex to TRUE\r
1100 //\r
1101 return TRUE;\r
1102 }\r
1103\r
1104 //\r
1105 // Depex section not in the encapsulated section.\r
1106 //\r
1107 Status = PeiServicesFfsFindSectionData (\r
1108 EFI_SECTION_PEI_DEPEX,\r
1109 FileHandle,\r
1110 (VOID **)&DepexData\r
1111 );\r
1112\r
1113 if (EFI_ERROR (Status)) {\r
1114 //\r
1115 // If there is no DEPEX, assume the module can be executed\r
1116 //\r
1117 return TRUE;\r
1118 }\r
1119\r
1120 //\r
1121 // Evaluate a given DEPEX\r
1122 //\r
1123 return PeimDispatchReadiness (&Private->PS, DepexData);\r
1124}\r
1125\r
1126/**\r
1127 This routine enable a PEIM to register itself to shadow when PEI Foundation\r
1128 discovery permanent memory.\r
1129\r
1130 @param FileHandle File handle of a PEIM.\r
1131\r
1132 @retval EFI_NOT_FOUND The file handle doesn't point to PEIM itself.\r
1133 @retval EFI_ALREADY_STARTED Indicate that the PEIM has been registered itself.\r
1134 @retval EFI_SUCCESS Successfully to register itself.\r
1135\r
1136**/\r
1137EFI_STATUS\r
1138EFIAPI\r
1139PeiRegisterForShadow (\r
1140 IN EFI_PEI_FILE_HANDLE FileHandle\r
1141 )\r
1142{\r
1143 PEI_CORE_INSTANCE *Private;\r
1144 Private = PEI_CORE_INSTANCE_FROM_PS_THIS (GetPeiServicesTablePointer ());\r
1145\r
1146 if (Private->CurrentFileHandle != FileHandle) {\r
1147 //\r
1148 // The FileHandle must be for the current PEIM\r
1149 //\r
1150 return EFI_NOT_FOUND;\r
1151 }\r
1152\r
1153 if (Private->Fv[Private->CurrentPeimFvCount].PeimState[Private->CurrentPeimCount] >= PEIM_STATE_REGISITER_FOR_SHADOW) {\r
1154 //\r
1155 // If the PEIM has already entered the PEIM_STATE_REGISTER_FOR_SHADOW or PEIM_STATE_DONE then it's already been started\r
1156 //\r
1157 return EFI_ALREADY_STARTED;\r
1158 }\r
1159\r
1160 Private->Fv[Private->CurrentPeimFvCount].PeimState[Private->CurrentPeimCount] = PEIM_STATE_REGISITER_FOR_SHADOW;\r
1161\r
1162 return EFI_SUCCESS;\r
1163}\r
1164\r
1165\r
1166\r
EFI Development Kit II mirror for PVE