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615c6dd0 1/** @file\r
b1f6a7c6 2 Pei Core Main Entry Point\r
3 \r
cd5ebaa0
HT
4Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
5This program and the accompanying materials\r
192f6d4c 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
615c6dd0 13**/\r
192f6d4c 14\r
0d516397 15#include "PeiMain.h"\r
192f6d4c 16\r
fe1e36e5 17EFI_PEI_PPI_DESCRIPTOR mMemoryDiscoveredPpi = {\r
192f6d4c 18 (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r
19 &gEfiPeiMemoryDiscoveredPpiGuid,\r
20 NULL\r
21};\r
22\r
40f26b8f 23///\r
82b8c8df 24/// Pei service instance\r
40f26b8f 25///\r
fe1e36e5 26EFI_PEI_SERVICES gPs = {\r
192f6d4c 27 {\r
28 PEI_SERVICES_SIGNATURE,\r
29 PEI_SERVICES_REVISION,\r
30 sizeof (EFI_PEI_SERVICES),\r
31 0,\r
32 0\r
33 },\r
34 PeiInstallPpi,\r
35 PeiReInstallPpi,\r
36 PeiLocatePpi,\r
37 PeiNotifyPpi,\r
38\r
39 PeiGetBootMode,\r
40 PeiSetBootMode,\r
41\r
42 PeiGetHobList,\r
43 PeiCreateHob,\r
44\r
3b428ade 45 PeiFfsFindNextVolume,\r
192f6d4c 46 PeiFfsFindNextFile,\r
47 PeiFfsFindSectionData,\r
48\r
b0d803fe 49 PeiInstallPeiMemory, \r
192f6d4c 50 PeiAllocatePages,\r
51 PeiAllocatePool,\r
52 (EFI_PEI_COPY_MEM)CopyMem,\r
53 (EFI_PEI_SET_MEM)SetMem,\r
54\r
55 PeiReportStatusCode,\r
14e8823a 56 PeiResetSystem,\r
b0d803fe 57\r
8d415937 58 &gPeiDefaultCpuIoPpi,\r
59 &gPeiDefaultPciCfg2Ppi,\r
b0d803fe 60\r
61 PeiFfsFindFileByName,\r
62 PeiFfsGetFileInfo,\r
63 PeiFfsGetVolumeInfo,\r
14e8823a 64 PeiRegisterForShadow\r
192f6d4c 65};\r
66\r
ef05e063 67/**\r
68 Shadow PeiCore module from flash to installed memory.\r
69 \r
70 @param PrivateData PeiCore's private data structure\r
71\r
72 @return PeiCore function address after shadowing.\r
73**/\r
74PEICORE_FUNCTION_POINTER\r
75ShadowPeiCore (\r
76 IN PEI_CORE_INSTANCE *PrivateData\r
77 )\r
78{\r
79 EFI_PEI_FILE_HANDLE PeiCoreFileHandle;\r
80 EFI_PHYSICAL_ADDRESS EntryPoint;\r
81 EFI_STATUS Status;\r
82 UINT32 AuthenticationState;\r
83\r
84 PeiCoreFileHandle = NULL;\r
85\r
86 //\r
87 // Find the PEI Core in the BFV\r
88 //\r
89 Status = PrivateData->Fv[0].FvPpi->FindFileByType (\r
90 PrivateData->Fv[0].FvPpi,\r
91 EFI_FV_FILETYPE_PEI_CORE,\r
92 PrivateData->Fv[0].FvHandle,\r
93 &PeiCoreFileHandle\r
94 );\r
95 ASSERT_EFI_ERROR (Status);\r
96\r
97 //\r
98 // Shadow PEI Core into memory so it will run faster\r
99 //\r
100 Status = PeiLoadImage (\r
101 GetPeiServicesTablePointer (),\r
102 *((EFI_PEI_FILE_HANDLE*)&PeiCoreFileHandle),\r
103 PEIM_STATE_REGISITER_FOR_SHADOW,\r
104 &EntryPoint,\r
105 &AuthenticationState\r
106 );\r
107 ASSERT_EFI_ERROR (Status);\r
108\r
109 //\r
110 // Compute the PeiCore's function address after shaowed PeiCore.\r
111 // _ModuleEntryPoint is PeiCore main function entry\r
112 //\r
113 return (PEICORE_FUNCTION_POINTER)((UINTN) EntryPoint + (UINTN) PeiCore - (UINTN) _ModuleEntryPoint);\r
114}\r
115\r
b1f6a7c6 116/**\r
82b8c8df 117 This routine is invoked by main entry of PeiMain module during transition\r
192f6d4c 118 from SEC to PEI. After switching stack in the PEI core, it will restart\r
119 with the old core data.\r
120\r
b1f6a7c6 121 @param SecCoreData Points to a data structure containing information about the PEI core's operating\r
5aae0aa7 122 environment, such as the size and location of temporary RAM, the stack location and\r
123 the BFV location.\r
b1f6a7c6 124 @param PpiList Points to a list of one or more PPI descriptors to be installed initially by the PEI core.\r
5aae0aa7 125 An empty PPI list consists of a single descriptor with the end-tag\r
126 EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST. As part of its initialization\r
127 phase, the PEI Foundation will add these SEC-hosted PPIs to its PPI database such\r
128 that both the PEI Foundation and any modules can leverage the associated service\r
129 calls and/or code in these early PPIs\r
b1f6a7c6 130 @param Data Pointer to old core data that is used to initialize the\r
192f6d4c 131 core's data areas.\r
82b8c8df 132 If NULL, it is first PeiCore entering.\r
192f6d4c 133\r
b1f6a7c6 134**/\r
0308e20d 135VOID\r
b1f6a7c6 136EFIAPI\r
137PeiCore (\r
138 IN CONST EFI_SEC_PEI_HAND_OFF *SecCoreData,\r
139 IN CONST EFI_PEI_PPI_DESCRIPTOR *PpiList,\r
140 IN VOID *Data\r
141 )\r
192f6d4c 142{\r
ef05e063 143 PEI_CORE_INSTANCE PrivateData;\r
144 EFI_STATUS Status;\r
145 PEI_CORE_TEMP_POINTERS TempPtr;\r
ef05e063 146 PEI_CORE_INSTANCE *OldCoreData;\r
147 EFI_PEI_CPU_IO_PPI *CpuIo;\r
148 EFI_PEI_PCI_CFG2_PPI *PciCfg;\r
149 EFI_HOB_HANDOFF_INFO_TABLE *HandoffInformationTable;\r
192f6d4c 150\r
6b22483f 151 //\r
152 // Retrieve context passed into PEI Core\r
153 //\r
ef05e063 154 OldCoreData = (PEI_CORE_INSTANCE *)Data;\r
192f6d4c 155\r
40f26b8f 156 //\r
6b22483f 157 // Perform PEI Core phase specific actions.\r
158 //\r
159 if (OldCoreData == NULL) {\r
160 //\r
161 // If OldCoreData is NULL, means current is the first entry into the PEI Core before memory is available.\r
162 //\r
163 ZeroMem (&PrivateData, sizeof (PEI_CORE_INSTANCE));\r
164 PrivateData.Signature = PEI_CORE_HANDLE_SIGNATURE;\r
165 CopyMem (&PrivateData.ServiceTableShadow, &gPs, sizeof (gPs));\r
166 } else {\r
167 //\r
168 // Memory is available to the PEI Core. See if the PEI Core has been shadowed to memory yet.\r
169 //\r
ef05e063 170 if (OldCoreData->ShadowedPeiCore == NULL) {\r
ef05e063 171 //\r
172 // Fixup the PeiCore's private data\r
173 //\r
6b22483f 174 OldCoreData->Ps = &OldCoreData->ServiceTableShadow;\r
175 OldCoreData->CpuIo = &OldCoreData->ServiceTableShadow.CpuIo;\r
ef05e063 176 if (OldCoreData->HeapOffsetPositive) {\r
177 OldCoreData->HobList.Raw = (VOID *)(OldCoreData->HobList.Raw + OldCoreData->HeapOffset);\r
178 } else {\r
179 OldCoreData->HobList.Raw = (VOID *)(OldCoreData->HobList.Raw - OldCoreData->HeapOffset);\r
180 }\r
181\r
6b22483f 182 //\r
183 // Initialize libraries that the PEI Core is linked against\r
184 //\r
185 ProcessLibraryConstructorList (NULL, (CONST EFI_PEI_SERVICES **)&OldCoreData->Ps);\r
186 \r
ef05e063 187 //\r
188 // Fixup for PeiService's address\r
189 //\r
190 SetPeiServicesTablePointer ((CONST EFI_PEI_SERVICES **)&OldCoreData->Ps);\r
191\r
192 //\r
193 // Update HandOffHob for new installed permenent memory\r
194 //\r
195 HandoffInformationTable = OldCoreData->HobList.HandoffInformationTable;\r
196 if (OldCoreData->HeapOffsetPositive) {\r
197 HandoffInformationTable->EfiEndOfHobList = HandoffInformationTable->EfiEndOfHobList + OldCoreData->HeapOffset;\r
198 } else {\r
199 HandoffInformationTable->EfiEndOfHobList = HandoffInformationTable->EfiEndOfHobList - OldCoreData->HeapOffset;\r
200 }\r
201 HandoffInformationTable->EfiMemoryTop = OldCoreData->PhysicalMemoryBegin + OldCoreData->PhysicalMemoryLength;\r
202 HandoffInformationTable->EfiMemoryBottom = OldCoreData->PhysicalMemoryBegin;\r
203 HandoffInformationTable->EfiFreeMemoryTop = OldCoreData->FreePhysicalMemoryTop;\r
204 HandoffInformationTable->EfiFreeMemoryBottom = HandoffInformationTable->EfiEndOfHobList + sizeof (EFI_HOB_GENERIC_HEADER);\r
205\r
206 //\r
207 // We need convert the PPI desciptor's pointer\r
208 //\r
209 ConvertPpiPointers (OldCoreData, (UINTN)SecCoreData->TemporaryRamBase, (UINTN)SecCoreData->TemporaryRamBase + SecCoreData->TemporaryRamSize, OldCoreData->HeapOffset, OldCoreData->HeapOffsetPositive);\r
210\r
211 //\r
212 // After the whole temporary memory is migrated, then we can allocate page in\r
213 // permenent memory.\r
214 //\r
215 OldCoreData->PeiMemoryInstalled = TRUE;\r
216\r
217 //\r
218 // Indicate that PeiCore reenter\r
219 //\r
220 OldCoreData->PeimDispatcherReenter = TRUE;\r
221 \r
222 if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0 && (OldCoreData->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r
223 //\r
224 // if Loading Module at Fixed Address is enabled, allocate the PEI code memory range usage bit map array.\r
225 // Every bit in the array indicate the status of the corresponding memory page available or not\r
226 //\r
227 OldCoreData->PeiCodeMemoryRangeUsageBitMap = AllocateZeroPool (((PcdGet32(PcdLoadFixAddressPeiCodePageNumber)>>6) + 1)*sizeof(UINT64));\r
228 }\r
229\r
ef05e063 230 //\r
231 // Shadow PEI Core. When permanent memory is avaiable, shadow\r
232 // PEI Core and PEIMs to get high performance.\r
233 //\r
234 OldCoreData->ShadowedPeiCore = ShadowPeiCore (OldCoreData);\r
235 \r
236 //\r
6b22483f 237 // PEI Core has now been shadowed to memory. Restart PEI Core in memory.\r
ef05e063 238 //\r
239 OldCoreData->ShadowedPeiCore (SecCoreData, PpiList, OldCoreData);\r
6b22483f 240 \r
241 //\r
242 // Should never reach here.\r
243 //\r
244 ASSERT (FALSE);\r
245 CpuDeadLoop();\r
58dcdada 246 }\r
247\r
6b22483f 248 //\r
249 // Memory is available to the PEI Core and the PEI Core has been shadowed to memory.\r
250 //\r
251 \r
ef05e063 252 CopyMem (&PrivateData, OldCoreData, sizeof (PrivateData));\r
b0d803fe 253 \r
254 CpuIo = (VOID*)PrivateData.ServiceTableShadow.CpuIo;\r
255 PciCfg = (VOID*)PrivateData.ServiceTableShadow.PciCfg;\r
256 \r
b1f6a7c6 257 CopyMem (&PrivateData.ServiceTableShadow, &gPs, sizeof (gPs));\r
b0d803fe 258 \r
259 PrivateData.ServiceTableShadow.CpuIo = CpuIo;\r
260 PrivateData.ServiceTableShadow.PciCfg = PciCfg;\r
192f6d4c 261 }\r
6b22483f 262 \r
263 //\r
264 // Cache a pointer to the PEI Services Table that is either in temporary memory or permanent memory\r
265 //\r
4140a663 266 PrivateData.Ps = &PrivateData.ServiceTableShadow;\r
192f6d4c 267\r
268 //\r
6b22483f 269 // Initialize libraries that the PEI Core is linked against\r
192f6d4c 270 //\r
4140a663 271 ProcessLibraryConstructorList (NULL, (CONST EFI_PEI_SERVICES **)&PrivateData.Ps);\r
192f6d4c 272\r
81c7803c 273 //\r
274 // Save PeiServicePointer so that it can be retrieved anywhere.\r
275 //\r
6b22483f 276 SetPeiServicesTablePointer ((CONST EFI_PEI_SERVICES **)&PrivateData.Ps);\r
192f6d4c 277\r
6b22483f 278 //\r
279 // Initialize PEI Core Services\r
280 // \r
281 InitializeMemoryServices (&PrivateData, SecCoreData, OldCoreData);\r
282 InitializePpiServices (&PrivateData, OldCoreData);\r
283 \r
284 //\r
285 // Update performance measurements \r
286 //\r
287 if (OldCoreData == NULL) {\r
288 PERF_START (NULL, "SEC", NULL, 1);\r
289 PERF_END (NULL, "SEC", NULL, 0);\r
192f6d4c 290\r
192f6d4c 291 //\r
6b22483f 292 // If first pass, start performance measurement.\r
192f6d4c 293 //\r
6b22483f 294 PERF_START (NULL,"PEI", NULL, 0);\r
295 PERF_START (NULL,"PreMem", NULL, 0);\r
192f6d4c 296\r
297 } else {\r
6b22483f 298 PERF_END (NULL,"PreMem", NULL, 0);\r
299 PERF_START (NULL,"PostMem", NULL, 0);\r
300 }\r
301\r
302 //\r
303 // Complete PEI Core Service initialization\r
304 // \r
305 InitializeSecurityServices (&PrivateData.Ps, OldCoreData);\r
306 InitializeDispatcherData (&PrivateData, OldCoreData, SecCoreData);\r
307 InitializeImageServices (&PrivateData, OldCoreData);\r
192f6d4c 308\r
6b22483f 309 //\r
310 // Perform PEI Core Phase specific actions\r
311 // \r
312 if (OldCoreData == NULL) {\r
192f6d4c 313 //\r
314 // Report Status Code EFI_SW_PC_INIT\r
315 //\r
316 REPORT_STATUS_CODE (\r
317 EFI_PROGRESS_CODE,\r
f9876ecf 318 (EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT)\r
192f6d4c 319 );\r
008d4018 320 \r
192f6d4c 321 //\r
322 // If SEC provided any PPI services to PEI, install them.\r
323 //\r
5088e385 324 if (PpiList != NULL) {\r
325 Status = PeiServicesInstallPpi (PpiList);\r
192f6d4c 326 ASSERT_EFI_ERROR (Status);\r
327 }\r
6b22483f 328 } else {\r
329 //\r
330 // Alert any listeners that there is permanent memory available\r
331 //\r
332 PERF_START (NULL,"DisMem", NULL, 0);\r
333 Status = PeiServicesInstallPpi (&mMemoryDiscoveredPpi);\r
b0d803fe 334\r
6b22483f 335 //\r
336 // Process the Notify list and dispatch any notifies for the Memory Discovered PPI\r
337 //\r
338 ProcessNotifyList (&PrivateData);\r
b0d803fe 339\r
6b22483f 340 PERF_END (NULL,"DisMem", NULL, 0);\r
341 }\r
192f6d4c 342\r
343 //\r
344 // Call PEIM dispatcher\r
345 //\r
b0d803fe 346 PeiDispatcher (SecCoreData, &PrivateData);\r
192f6d4c 347\r
348 //\r
349 // Check if InstallPeiMemory service was called.\r
350 //\r
351 ASSERT(PrivateData.PeiMemoryInstalled == TRUE);\r
352\r
40f26b8f 353 //\r
6b22483f 354 // Measure PEI Core execution time.\r
40f26b8f 355 //\r
192f6d4c 356 PERF_END (NULL, "PostMem", NULL, 0);\r
357\r
6b22483f 358 //\r
359 // Lookup DXE IPL PPI\r
360 //\r
192f6d4c 361 Status = PeiServicesLocatePpi (\r
362 &gEfiDxeIplPpiGuid,\r
363 0,\r
364 NULL,\r
365 (VOID **)&TempPtr.DxeIpl\r
366 );\r
367 ASSERT_EFI_ERROR (Status);\r
368\r
40f26b8f 369 //\r
370 // Enter DxeIpl to load Dxe core.\r
371 //\r
192f6d4c 372 DEBUG ((EFI_D_INFO, "DXE IPL Entry\n"));\r
373 Status = TempPtr.DxeIpl->Entry (\r
374 TempPtr.DxeIpl,\r
4140a663 375 &PrivateData.Ps,\r
192f6d4c 376 PrivateData.HobList\r
377 );\r
0308e20d 378 //\r
379 // Should never reach here.\r
380 //\r
192f6d4c 381 ASSERT_EFI_ERROR (Status);\r
0308e20d 382 CpuDeadLoop();\r
192f6d4c 383}\r