]>
Commit | Line | Data |
---|---|---|
1 | /** @file\r | |
2 | Pei Core Load Image Support\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r | |
5 | This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this 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 "PeiMain.h"\r | |
16 | \r | |
17 | \r | |
18 | EFI_PEI_LOAD_FILE_PPI mPeiLoadImagePpi = {\r | |
19 | PeiLoadImageLoadImageWrapper\r | |
20 | };\r | |
21 | \r | |
22 | \r | |
23 | EFI_PEI_PPI_DESCRIPTOR gPpiLoadFilePpiList = {\r | |
24 | (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),\r | |
25 | &gEfiPeiLoadFilePpiGuid,\r | |
26 | &mPeiLoadImagePpi\r | |
27 | };\r | |
28 | \r | |
29 | /**\r | |
30 | \r | |
31 | Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file.\r | |
32 | The function is used for XIP code to have optimized memory copy.\r | |
33 | \r | |
34 | @param FileHandle - The handle to the PE/COFF file\r | |
35 | @param FileOffset - The offset, in bytes, into the file to read\r | |
36 | @param ReadSize - The number of bytes to read from the file starting at FileOffset\r | |
37 | @param Buffer - A pointer to the buffer to read the data into.\r | |
38 | \r | |
39 | @return EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset\r | |
40 | \r | |
41 | **/\r | |
42 | EFI_STATUS\r | |
43 | EFIAPI\r | |
44 | PeiImageRead (\r | |
45 | IN VOID *FileHandle,\r | |
46 | IN UINTN FileOffset,\r | |
47 | IN UINTN *ReadSize,\r | |
48 | OUT VOID *Buffer\r | |
49 | )\r | |
50 | {\r | |
51 | CHAR8 *Destination8;\r | |
52 | CHAR8 *Source8;\r | |
53 | \r | |
54 | Destination8 = Buffer;\r | |
55 | Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset);\r | |
56 | if (Destination8 != Source8) {\r | |
57 | CopyMem (Destination8, Source8, *ReadSize);\r | |
58 | }\r | |
59 | \r | |
60 | return EFI_SUCCESS;\r | |
61 | }\r | |
62 | \r | |
63 | /**\r | |
64 | \r | |
65 | Support routine for the PE/COFF Loader that reads a buffer from a PE/COFF file.\r | |
66 | The function is implemented as PIC so as to support shadowing.\r | |
67 | \r | |
68 | @param FileHandle - The handle to the PE/COFF file\r | |
69 | @param FileOffset - The offset, in bytes, into the file to read\r | |
70 | @param ReadSize - The number of bytes to read from the file starting at FileOffset\r | |
71 | @param Buffer - A pointer to the buffer to read the data into.\r | |
72 | \r | |
73 | @return EFI_SUCCESS - ReadSize bytes of data were read into Buffer from the PE/COFF file starting at FileOffset\r | |
74 | \r | |
75 | **/\r | |
76 | EFI_STATUS\r | |
77 | EFIAPI\r | |
78 | PeiImageReadForShadow (\r | |
79 | IN VOID *FileHandle,\r | |
80 | IN UINTN FileOffset,\r | |
81 | IN UINTN *ReadSize,\r | |
82 | OUT VOID *Buffer\r | |
83 | )\r | |
84 | {\r | |
85 | volatile CHAR8 *Destination8;\r | |
86 | CHAR8 *Source8;\r | |
87 | UINTN Length;\r | |
88 | \r | |
89 | Destination8 = Buffer;\r | |
90 | Source8 = (CHAR8 *) ((UINTN) FileHandle + FileOffset);\r | |
91 | if (Destination8 != Source8) {\r | |
92 | Length = *ReadSize;\r | |
93 | while ((Length--) > 0) {\r | |
94 | *(Destination8++) = *(Source8++);\r | |
95 | }\r | |
96 | }\r | |
97 | \r | |
98 | return EFI_SUCCESS;\r | |
99 | }\r | |
100 | \r | |
101 | /**\r | |
102 | \r | |
103 | Support routine to get the Image read file function.\r | |
104 | \r | |
105 | @param ImageContext - The context of the image being loaded\r | |
106 | \r | |
107 | @retval EFI_SUCCESS - If Image function location is found\r | |
108 | \r | |
109 | **/\r | |
110 | EFI_STATUS\r | |
111 | GetImageReadFunction (\r | |
112 | IN PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext\r | |
113 | )\r | |
114 | {\r | |
115 | #if defined (MDE_CPU_IA32) || defined (MDE_CPU_X64)\r | |
116 | PEI_CORE_INSTANCE *Private;\r | |
117 | EFI_PHYSICAL_ADDRESS MemoryBuffer;\r | |
118 | \r | |
119 | Private = PEI_CORE_INSTANCE_FROM_PS_THIS (GetPeiServicesTablePointer ());\r | |
120 | MemoryBuffer = 0;\r | |
121 | \r | |
122 | if (Private->PeiMemoryInstalled && (((Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME) && PcdGetBool (PcdShadowPeimOnBoot)) ||\r | |
123 | ((Private->HobList.HandoffInformationTable->BootMode == BOOT_ON_S3_RESUME) && PcdGetBool (PcdShadowPeimOnS3Boot)))) {\r | |
124 | //\r | |
125 | // Shadow algorithm makes lots of non ANSI C assumptions and only works for IA32 and X64\r | |
126 | // compilers that have been tested\r | |
127 | //\r | |
128 | if (Private->ShadowedImageRead == NULL) {\r | |
129 | PeiServicesAllocatePages (EfiBootServicesCode, 0x400 / EFI_PAGE_SIZE + 1, &MemoryBuffer);\r | |
130 | ASSERT (MemoryBuffer != 0);\r | |
131 | CopyMem ((VOID *)(UINTN)MemoryBuffer, (CONST VOID *) (UINTN) PeiImageReadForShadow, 0x400);\r | |
132 | Private->ShadowedImageRead = (PE_COFF_LOADER_READ_FILE) (UINTN) MemoryBuffer;\r | |
133 | }\r | |
134 | \r | |
135 | ImageContext->ImageRead = Private->ShadowedImageRead;\r | |
136 | } else {\r | |
137 | ImageContext->ImageRead = PeiImageRead;\r | |
138 | }\r | |
139 | #else\r | |
140 | ImageContext->ImageRead = PeiImageRead;\r | |
141 | #endif\r | |
142 | return EFI_SUCCESS;\r | |
143 | }\r | |
144 | /**\r | |
145 | To check memory usage bit map array to figure out if the memory range the image will be loaded in is available or not. If\r | |
146 | memory range is available, the function will mark the corresponding bits to 1 which indicates the memory range is used.\r | |
147 | The function is only invoked when load modules at fixed address feature is enabled.\r | |
148 | \r | |
149 | @param Private Pointer to the private data passed in from caller\r | |
150 | @param ImageBase The base address the image will be loaded at.\r | |
151 | @param ImageSize The size of the image\r | |
152 | \r | |
153 | @retval EFI_SUCCESS The memory range the image will be loaded in is available\r | |
154 | @retval EFI_NOT_FOUND The memory range the image will be loaded in is not available\r | |
155 | **/\r | |
156 | EFI_STATUS\r | |
157 | CheckAndMarkFixLoadingMemoryUsageBitMap (\r | |
158 | IN PEI_CORE_INSTANCE *Private,\r | |
159 | IN EFI_PHYSICAL_ADDRESS ImageBase,\r | |
160 | IN UINT32 ImageSize\r | |
161 | )\r | |
162 | {\r | |
163 | UINT32 DxeCodePageNumber;\r | |
164 | UINT64 ReservedCodeSize;\r | |
165 | EFI_PHYSICAL_ADDRESS PeiCodeBase;\r | |
166 | UINT32 BaseOffsetPageNumber;\r | |
167 | UINT32 TopOffsetPageNumber;\r | |
168 | UINT32 Index;\r | |
169 | UINT64 *MemoryUsageBitMap;\r | |
170 | \r | |
171 | \r | |
172 | //\r | |
173 | // The reserved code range includes RuntimeCodePage range, Boot time code range and PEI code range.\r | |
174 | //\r | |
175 | DxeCodePageNumber = PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);\r | |
176 | DxeCodePageNumber += PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);\r | |
177 | ReservedCodeSize = EFI_PAGES_TO_SIZE(DxeCodePageNumber + PcdGet32(PcdLoadFixAddressPeiCodePageNumber));\r | |
178 | PeiCodeBase = Private->LoadModuleAtFixAddressTopAddress - ReservedCodeSize;\r | |
179 | \r | |
180 | //\r | |
181 | // Test the memory range for loading the image in the PEI code range.\r | |
182 | //\r | |
183 | if ((Private->LoadModuleAtFixAddressTopAddress - EFI_PAGES_TO_SIZE(DxeCodePageNumber)) < (ImageBase + ImageSize) ||\r | |
184 | (PeiCodeBase > ImageBase)) {\r | |
185 | return EFI_NOT_FOUND;\r | |
186 | }\r | |
187 | \r | |
188 | //\r | |
189 | // Test if the memory is avalaible or not.\r | |
190 | //\r | |
191 | MemoryUsageBitMap = Private->PeiCodeMemoryRangeUsageBitMap;\r | |
192 | BaseOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase - PeiCodeBase));\r | |
193 | TopOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase + ImageSize - PeiCodeBase));\r | |
194 | for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {\r | |
195 | if ((MemoryUsageBitMap[Index / 64] & LShiftU64(1, (Index % 64))) != 0) {\r | |
196 | //\r | |
197 | // This page is already used.\r | |
198 | //\r | |
199 | return EFI_NOT_FOUND;\r | |
200 | }\r | |
201 | }\r | |
202 | \r | |
203 | //\r | |
204 | // Being here means the memory range is available. So mark the bits for the memory range\r | |
205 | //\r | |
206 | for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {\r | |
207 | MemoryUsageBitMap[Index / 64] |= LShiftU64(1, (Index % 64));\r | |
208 | }\r | |
209 | return EFI_SUCCESS;\r | |
210 | }\r | |
211 | /**\r | |
212 | \r | |
213 | Get the fixed loading address from image header assigned by build tool. This function only be called\r | |
214 | when Loading module at Fixed address feature enabled.\r | |
215 | \r | |
216 | @param ImageContext Pointer to the image context structure that describes the PE/COFF\r | |
217 | image that needs to be examined by this function.\r | |
218 | @param Private Pointer to the private data passed in from caller\r | |
219 | \r | |
220 | @retval EFI_SUCCESS An fixed loading address is assigned to this image by build tools .\r | |
221 | @retval EFI_NOT_FOUND The image has no assigned fixed loading address.\r | |
222 | \r | |
223 | **/\r | |
224 | EFI_STATUS\r | |
225 | GetPeCoffImageFixLoadingAssignedAddress(\r | |
226 | IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext,\r | |
227 | IN PEI_CORE_INSTANCE *Private\r | |
228 | )\r | |
229 | {\r | |
230 | UINTN SectionHeaderOffset;\r | |
231 | EFI_STATUS Status;\r | |
232 | EFI_IMAGE_SECTION_HEADER SectionHeader;\r | |
233 | EFI_IMAGE_OPTIONAL_HEADER_UNION *ImgHdr;\r | |
234 | EFI_PHYSICAL_ADDRESS FixLoadingAddress;\r | |
235 | UINT16 Index;\r | |
236 | UINTN Size;\r | |
237 | UINT16 NumberOfSections;\r | |
238 | UINT64 ValueInSectionHeader;\r | |
239 | \r | |
240 | \r | |
241 | FixLoadingAddress = 0;\r | |
242 | Status = EFI_NOT_FOUND;\r | |
243 | \r | |
244 | //\r | |
245 | // Get PeHeader pointer\r | |
246 | //\r | |
247 | ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((CHAR8* )ImageContext->Handle + ImageContext->PeCoffHeaderOffset);\r | |
248 | if (ImageContext->IsTeImage) {\r | |
249 | //\r | |
250 | // for TE image, the fix loading address is saved in first section header that doesn't point\r | |
251 | // to code section.\r | |
252 | //\r | |
253 | SectionHeaderOffset = sizeof (EFI_TE_IMAGE_HEADER);\r | |
254 | NumberOfSections = ImgHdr->Te.NumberOfSections;\r | |
255 | } else {\r | |
256 | SectionHeaderOffset = ImageContext->PeCoffHeaderOffset +\r | |
257 | sizeof (UINT32) +\r | |
258 | sizeof (EFI_IMAGE_FILE_HEADER) +\r | |
259 | ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader;\r | |
260 | NumberOfSections = ImgHdr->Pe32.FileHeader.NumberOfSections;\r | |
261 | }\r | |
262 | //\r | |
263 | // Get base address from the first section header that doesn't point to code section.\r | |
264 | //\r | |
265 | for (Index = 0; Index < NumberOfSections; Index++) {\r | |
266 | //\r | |
267 | // Read section header from file\r | |
268 | //\r | |
269 | Size = sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
270 | Status = ImageContext->ImageRead (\r | |
271 | ImageContext->Handle,\r | |
272 | SectionHeaderOffset,\r | |
273 | &Size,\r | |
274 | &SectionHeader\r | |
275 | );\r | |
276 | if (EFI_ERROR (Status)) {\r | |
277 | return Status;\r | |
278 | }\r | |
279 | \r | |
280 | Status = EFI_NOT_FOUND;\r | |
281 | \r | |
282 | if ((SectionHeader.Characteristics & EFI_IMAGE_SCN_CNT_CODE) == 0) {\r | |
283 | //\r | |
284 | // Build tool will save the address in PointerToRelocations & PointerToLineNumbers fields in the first section header\r | |
285 | // that doesn't point to code section in image header, as well as ImageBase field of image header. A notable thing is\r | |
286 | // that for PEIM, the value in ImageBase field may not be equal to the value in PointerToRelocations & PointerToLineNumbers because\r | |
287 | // for XIP PEIM, ImageBase field holds the image base address running on the Flash. And PointerToRelocations & PointerToLineNumbers\r | |
288 | // hold the image base address when it is shadow to the memory. And there is an assumption that when the feature is enabled, if a\r | |
289 | // module is assigned a loading address by tools, PointerToRelocations & PointerToLineNumbers fields should NOT be Zero, or\r | |
290 | // else, these 2 fields should be set to Zero\r | |
291 | //\r | |
292 | ValueInSectionHeader = ReadUnaligned64((UINT64*)&SectionHeader.PointerToRelocations);\r | |
293 | if (ValueInSectionHeader != 0) {\r | |
294 | //\r | |
295 | // Found first section header that doesn't point to code section.\r | |
296 | //\r | |
297 | if ((INT64)PcdGet64(PcdLoadModuleAtFixAddressEnable) > 0) {\r | |
298 | //\r | |
299 | // When LMFA feature is configured as Load Module at Fixed Absolute Address mode, PointerToRelocations & PointerToLineNumbers field\r | |
300 | // hold the absolute address of image base running in memory\r | |
301 | //\r | |
302 | FixLoadingAddress = ValueInSectionHeader;\r | |
303 | } else {\r | |
304 | //\r | |
305 | // When LMFA feature is configured as Load Module at Fixed offset mode, PointerToRelocations & PointerToLineNumbers field\r | |
306 | // hold the offset relative to a platform-specific top address.\r | |
307 | //\r | |
308 | FixLoadingAddress = (EFI_PHYSICAL_ADDRESS)(Private->LoadModuleAtFixAddressTopAddress + (INT64)ValueInSectionHeader);\r | |
309 | }\r | |
310 | //\r | |
311 | // Check if the memory range is available.\r | |
312 | //\r | |
313 | Status = CheckAndMarkFixLoadingMemoryUsageBitMap (Private, FixLoadingAddress, (UINT32) ImageContext->ImageSize);\r | |
314 | if (!EFI_ERROR(Status)) {\r | |
315 | //\r | |
316 | // The assigned address is valid. Return the specified loading address\r | |
317 | //\r | |
318 | ImageContext->ImageAddress = FixLoadingAddress;\r | |
319 | }\r | |
320 | }\r | |
321 | break;\r | |
322 | }\r | |
323 | SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);\r | |
324 | }\r | |
325 | DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED INFO: Loading module at fixed address 0x%11p. Status= %r \n", (VOID *)(UINTN)FixLoadingAddress, Status));\r | |
326 | return Status;\r | |
327 | }\r | |
328 | /**\r | |
329 | \r | |
330 | Loads and relocates a PE/COFF image into memory.\r | |
331 | If the image is not relocatable, it will not be loaded into memory and be loaded as XIP image.\r | |
332 | \r | |
333 | @param FileHandle - Pointer to the FFS file header of the image.\r | |
334 | @param Pe32Data - The base address of the PE/COFF file that is to be loaded and relocated\r | |
335 | @param ImageAddress - The base address of the relocated PE/COFF image\r | |
336 | @param ImageSize - The size of the relocated PE/COFF image\r | |
337 | @param EntryPoint - The entry point of the relocated PE/COFF image\r | |
338 | \r | |
339 | @retval EFI_SUCCESS The file was loaded and relocated\r | |
340 | @retval EFI_OUT_OF_RESOURCES There was not enough memory to load and relocate the PE/COFF file\r | |
341 | @retval EFI_WARN_BUFFER_TOO_SMALL\r | |
342 | There is not enough heap to allocate the requested size.\r | |
343 | This will not prevent the XIP image from being invoked.\r | |
344 | \r | |
345 | **/\r | |
346 | EFI_STATUS\r | |
347 | LoadAndRelocatePeCoffImage (\r | |
348 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
349 | IN VOID *Pe32Data,\r | |
350 | OUT EFI_PHYSICAL_ADDRESS *ImageAddress,\r | |
351 | OUT UINT64 *ImageSize,\r | |
352 | OUT EFI_PHYSICAL_ADDRESS *EntryPoint\r | |
353 | )\r | |
354 | {\r | |
355 | EFI_STATUS Status;\r | |
356 | PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r | |
357 | PEI_CORE_INSTANCE *Private;\r | |
358 | UINT64 AlignImageSize;\r | |
359 | BOOLEAN IsXipImage;\r | |
360 | EFI_STATUS ReturnStatus;\r | |
361 | BOOLEAN IsS3Boot;\r | |
362 | BOOLEAN IsPeiModule;\r | |
363 | BOOLEAN IsRegisterForShadow;\r | |
364 | EFI_FV_FILE_INFO FileInfo;\r | |
365 | \r | |
366 | Private = PEI_CORE_INSTANCE_FROM_PS_THIS (GetPeiServicesTablePointer ());\r | |
367 | \r | |
368 | ReturnStatus = EFI_SUCCESS;\r | |
369 | IsXipImage = FALSE;\r | |
370 | ZeroMem (&ImageContext, sizeof (ImageContext));\r | |
371 | ImageContext.Handle = Pe32Data;\r | |
372 | Status = GetImageReadFunction (&ImageContext);\r | |
373 | \r | |
374 | ASSERT_EFI_ERROR (Status);\r | |
375 | \r | |
376 | Status = PeCoffLoaderGetImageInfo (&ImageContext);\r | |
377 | if (EFI_ERROR (Status)) {\r | |
378 | return Status;\r | |
379 | }\r | |
380 | \r | |
381 | //\r | |
382 | // Initilize local IsS3Boot and IsRegisterForShadow variable\r | |
383 | //\r | |
384 | IsS3Boot = FALSE;\r | |
385 | if (Private->HobList.HandoffInformationTable->BootMode == BOOT_ON_S3_RESUME) {\r | |
386 | IsS3Boot = TRUE;\r | |
387 | }\r | |
388 | IsRegisterForShadow = FALSE;\r | |
389 | if ((Private->CurrentFileHandle == FileHandle)\r | |
390 | && (Private->Fv[Private->CurrentPeimFvCount].PeimState[Private->CurrentPeimCount] == PEIM_STATE_REGISTER_FOR_SHADOW)) {\r | |
391 | IsRegisterForShadow = TRUE;\r | |
392 | }\r | |
393 | \r | |
394 | //\r | |
395 | // XIP image that ImageAddress is same to Image handle.\r | |
396 | //\r | |
397 | if (ImageContext.ImageAddress == (EFI_PHYSICAL_ADDRESS)(UINTN) Pe32Data) {\r | |
398 | IsXipImage = TRUE;\r | |
399 | }\r | |
400 | \r | |
401 | //\r | |
402 | // Get file type first\r | |
403 | //\r | |
404 | Status = PeiServicesFfsGetFileInfo (FileHandle, &FileInfo);\r | |
405 | ASSERT_EFI_ERROR (Status);\r | |
406 | \r | |
407 | //\r | |
408 | // Check whether the file type is PEI module.\r | |
409 | //\r | |
410 | IsPeiModule = FALSE;\r | |
411 | if (FileInfo.FileType == EFI_FV_FILETYPE_PEI_CORE ||\r | |
412 | FileInfo.FileType == EFI_FV_FILETYPE_PEIM ||\r | |
413 | FileInfo.FileType == EFI_FV_FILETYPE_COMBINED_PEIM_DRIVER) {\r | |
414 | IsPeiModule = TRUE;\r | |
415 | }\r | |
416 | \r | |
417 | //\r | |
418 | // When Image has no reloc section, it can't be relocated into memory.\r | |
419 | //\r | |
420 | if (ImageContext.RelocationsStripped && (Private->PeiMemoryInstalled) && ((!IsPeiModule) ||\r | |
421 | (!IsS3Boot && (PcdGetBool (PcdShadowPeimOnBoot) || IsRegisterForShadow)) || (IsS3Boot && PcdGetBool (PcdShadowPeimOnS3Boot)))) {\r | |
422 | DEBUG ((EFI_D_INFO|EFI_D_LOAD, "The image at 0x%08x without reloc section can't be loaded into memory\n", (UINTN) Pe32Data));\r | |
423 | }\r | |
424 | \r | |
425 | //\r | |
426 | // Set default base address to current image address.\r | |
427 | //\r | |
428 | ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Pe32Data;\r | |
429 | \r | |
430 | //\r | |
431 | // Allocate Memory for the image when memory is ready, and image is relocatable.\r | |
432 | // On normal boot, PcdShadowPeimOnBoot decides whether load PEIM or PeiCore into memory.\r | |
433 | // On S3 boot, PcdShadowPeimOnS3Boot decides whether load PEIM or PeiCore into memory.\r | |
434 | //\r | |
435 | if ((!ImageContext.RelocationsStripped) && (Private->PeiMemoryInstalled) && ((!IsPeiModule) ||\r | |
436 | (!IsS3Boot && (PcdGetBool (PcdShadowPeimOnBoot) || IsRegisterForShadow)) || (IsS3Boot && PcdGetBool (PcdShadowPeimOnS3Boot)))) {\r | |
437 | //\r | |
438 | // Allocate more buffer to avoid buffer overflow.\r | |
439 | //\r | |
440 | if (ImageContext.IsTeImage) {\r | |
441 | AlignImageSize = ImageContext.ImageSize + ((EFI_TE_IMAGE_HEADER *) Pe32Data)->StrippedSize - sizeof (EFI_TE_IMAGE_HEADER);\r | |
442 | } else {\r | |
443 | AlignImageSize = ImageContext.ImageSize;\r | |
444 | }\r | |
445 | \r | |
446 | if (ImageContext.SectionAlignment > EFI_PAGE_SIZE) {\r | |
447 | AlignImageSize += ImageContext.SectionAlignment;\r | |
448 | }\r | |
449 | \r | |
450 | if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0 && (Private->HobList.HandoffInformationTable->BootMode != BOOT_ON_S3_RESUME)) {\r | |
451 | Status = GetPeCoffImageFixLoadingAssignedAddress(&ImageContext, Private);\r | |
452 | if (EFI_ERROR (Status)){\r | |
453 | DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED ERROR: Failed to load module at fixed address. \n"));\r | |
454 | //\r | |
455 | // The PEIM is not assiged valid address, try to allocate page to load it.\r | |
456 | //\r | |
457 | Status = PeiServicesAllocatePages (EfiBootServicesCode,\r | |
458 | EFI_SIZE_TO_PAGES ((UINT32) AlignImageSize),\r | |
459 | &ImageContext.ImageAddress);\r | |
460 | }\r | |
461 | } else {\r | |
462 | Status = PeiServicesAllocatePages (EfiBootServicesCode,\r | |
463 | EFI_SIZE_TO_PAGES ((UINT32) AlignImageSize),\r | |
464 | &ImageContext.ImageAddress);\r | |
465 | }\r | |
466 | if (!EFI_ERROR (Status)) {\r | |
467 | //\r | |
468 | // Adjust the Image Address to make sure it is section alignment.\r | |
469 | //\r | |
470 | if (ImageContext.SectionAlignment > EFI_PAGE_SIZE) {\r | |
471 | ImageContext.ImageAddress =\r | |
472 | (ImageContext.ImageAddress + ImageContext.SectionAlignment - 1) &\r | |
473 | ~((UINTN)ImageContext.SectionAlignment - 1);\r | |
474 | }\r | |
475 | //\r | |
476 | // Fix alignment requirement when Load IPF TeImage into memory.\r | |
477 | // Skip the reserved space for the stripped PeHeader when load TeImage into memory.\r | |
478 | //\r | |
479 | if (ImageContext.IsTeImage) {\r | |
480 | ImageContext.ImageAddress = ImageContext.ImageAddress +\r | |
481 | ((EFI_TE_IMAGE_HEADER *) Pe32Data)->StrippedSize -\r | |
482 | sizeof (EFI_TE_IMAGE_HEADER);\r | |
483 | }\r | |
484 | } else {\r | |
485 | //\r | |
486 | // No enough memory resource.\r | |
487 | //\r | |
488 | if (IsXipImage) {\r | |
489 | //\r | |
490 | // XIP image can still be invoked.\r | |
491 | //\r | |
492 | ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN) Pe32Data;\r | |
493 | ReturnStatus = EFI_WARN_BUFFER_TOO_SMALL;\r | |
494 | } else {\r | |
495 | //\r | |
496 | // Non XIP image can't be loaded because no enough memory is allocated.\r | |
497 | //\r | |
498 | ASSERT (FALSE);\r | |
499 | return EFI_OUT_OF_RESOURCES;\r | |
500 | }\r | |
501 | }\r | |
502 | }\r | |
503 | \r | |
504 | //\r | |
505 | // Load the image to our new buffer\r | |
506 | //\r | |
507 | Status = PeCoffLoaderLoadImage (&ImageContext);\r | |
508 | if (EFI_ERROR (Status)) {\r | |
509 | if (ImageContext.ImageError == IMAGE_ERROR_INVALID_SECTION_ALIGNMENT) {\r | |
510 | DEBUG ((DEBUG_ERROR, "PEIM Image Address 0x%11p doesn't meet with section alignment 0x%x.\n", (VOID*)(UINTN)ImageContext.ImageAddress, ImageContext.SectionAlignment));\r | |
511 | }\r | |
512 | return Status;\r | |
513 | }\r | |
514 | //\r | |
515 | // Relocate the image in our new buffer\r | |
516 | //\r | |
517 | Status = PeCoffLoaderRelocateImage (&ImageContext);\r | |
518 | if (EFI_ERROR (Status)) {\r | |
519 | return Status;\r | |
520 | }\r | |
521 | \r | |
522 | //\r | |
523 | // Flush the instruction cache so the image data is written before we execute it\r | |
524 | //\r | |
525 | if (ImageContext.ImageAddress != (EFI_PHYSICAL_ADDRESS)(UINTN) Pe32Data) {\r | |
526 | InvalidateInstructionCacheRange ((VOID *)(UINTN)ImageContext.ImageAddress, (UINTN)ImageContext.ImageSize);\r | |
527 | }\r | |
528 | \r | |
529 | *ImageAddress = ImageContext.ImageAddress;\r | |
530 | *ImageSize = ImageContext.ImageSize;\r | |
531 | *EntryPoint = ImageContext.EntryPoint;\r | |
532 | \r | |
533 | return ReturnStatus;\r | |
534 | }\r | |
535 | \r | |
536 | /**\r | |
537 | Loads a PEIM into memory for subsequent execution. If there are compressed\r | |
538 | images or images that need to be relocated into memory for performance reasons,\r | |
539 | this service performs that transformation.\r | |
540 | \r | |
541 | @param PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
542 | @param FileHandle Pointer to the FFS file header of the image.\r | |
543 | @param ImageAddressArg Pointer to PE/TE image.\r | |
544 | @param ImageSizeArg Size of PE/TE image.\r | |
545 | @param EntryPoint Pointer to entry point of specified image file for output.\r | |
546 | @param AuthenticationState - Pointer to attestation authentication state of image.\r | |
547 | \r | |
548 | @retval EFI_SUCCESS Image is successfully loaded.\r | |
549 | @retval EFI_NOT_FOUND Fail to locate necessary PPI.\r | |
550 | @retval EFI_UNSUPPORTED Image Machine Type is not supported.\r | |
551 | @retval EFI_WARN_BUFFER_TOO_SMALL\r | |
552 | There is not enough heap to allocate the requested size.\r | |
553 | This will not prevent the XIP image from being invoked.\r | |
554 | \r | |
555 | **/\r | |
556 | EFI_STATUS\r | |
557 | PeiLoadImageLoadImage (\r | |
558 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
559 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
560 | OUT EFI_PHYSICAL_ADDRESS *ImageAddressArg, OPTIONAL\r | |
561 | OUT UINT64 *ImageSizeArg, OPTIONAL\r | |
562 | OUT EFI_PHYSICAL_ADDRESS *EntryPoint,\r | |
563 | OUT UINT32 *AuthenticationState\r | |
564 | )\r | |
565 | {\r | |
566 | EFI_STATUS Status;\r | |
567 | VOID *Pe32Data;\r | |
568 | EFI_PHYSICAL_ADDRESS ImageAddress;\r | |
569 | UINT64 ImageSize;\r | |
570 | EFI_PHYSICAL_ADDRESS ImageEntryPoint;\r | |
571 | UINT16 Machine;\r | |
572 | EFI_SECTION_TYPE SearchType1;\r | |
573 | EFI_SECTION_TYPE SearchType2;\r | |
574 | \r | |
575 | *EntryPoint = 0;\r | |
576 | ImageSize = 0;\r | |
577 | *AuthenticationState = 0;\r | |
578 | \r | |
579 | if (FeaturePcdGet (PcdPeiCoreImageLoaderSearchTeSectionFirst)) {\r | |
580 | SearchType1 = EFI_SECTION_TE;\r | |
581 | SearchType2 = EFI_SECTION_PE32;\r | |
582 | } else {\r | |
583 | SearchType1 = EFI_SECTION_PE32;\r | |
584 | SearchType2 = EFI_SECTION_TE;\r | |
585 | }\r | |
586 | \r | |
587 | //\r | |
588 | // Try to find a first exe section (if PcdPeiCoreImageLoaderSearchTeSectionFirst\r | |
589 | // is true, TE will be searched first).\r | |
590 | //\r | |
591 | Status = PeiServicesFfsFindSectionData3 (\r | |
592 | SearchType1,\r | |
593 | 0,\r | |
594 | FileHandle,\r | |
595 | &Pe32Data,\r | |
596 | AuthenticationState\r | |
597 | );\r | |
598 | //\r | |
599 | // If we didn't find a first exe section, try to find the second exe section.\r | |
600 | //\r | |
601 | if (EFI_ERROR (Status)) {\r | |
602 | Status = PeiServicesFfsFindSectionData3 (\r | |
603 | SearchType2,\r | |
604 | 0,\r | |
605 | FileHandle,\r | |
606 | &Pe32Data,\r | |
607 | AuthenticationState\r | |
608 | );\r | |
609 | if (EFI_ERROR (Status)) {\r | |
610 | //\r | |
611 | // PEI core only carry the loader function for TE and PE32 executables\r | |
612 | // If this two section does not exist, just return.\r | |
613 | //\r | |
614 | return Status;\r | |
615 | }\r | |
616 | }\r | |
617 | \r | |
618 | DEBUG ((DEBUG_INFO, "Loading PEIM %g\n", FileHandle));\r | |
619 | \r | |
620 | //\r | |
621 | // If memory is installed, perform the shadow operations\r | |
622 | //\r | |
623 | Status = LoadAndRelocatePeCoffImage (\r | |
624 | FileHandle,\r | |
625 | Pe32Data,\r | |
626 | &ImageAddress,\r | |
627 | &ImageSize,\r | |
628 | &ImageEntryPoint\r | |
629 | );\r | |
630 | \r | |
631 | ASSERT_EFI_ERROR (Status);\r | |
632 | \r | |
633 | \r | |
634 | if (EFI_ERROR (Status)) {\r | |
635 | return Status;\r | |
636 | }\r | |
637 | \r | |
638 | //\r | |
639 | // Got the entry point from the loaded Pe32Data\r | |
640 | //\r | |
641 | Pe32Data = (VOID *) ((UINTN) ImageAddress);\r | |
642 | *EntryPoint = ImageEntryPoint;\r | |
643 | \r | |
644 | Machine = PeCoffLoaderGetMachineType (Pe32Data);\r | |
645 | \r | |
646 | if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Machine)) {\r | |
647 | if (!EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Machine)) {\r | |
648 | return EFI_UNSUPPORTED;\r | |
649 | }\r | |
650 | }\r | |
651 | \r | |
652 | if (ImageAddressArg != NULL) {\r | |
653 | *ImageAddressArg = ImageAddress;\r | |
654 | }\r | |
655 | \r | |
656 | if (ImageSizeArg != NULL) {\r | |
657 | *ImageSizeArg = ImageSize;\r | |
658 | }\r | |
659 | \r | |
660 | DEBUG_CODE_BEGIN ();\r | |
661 | CHAR8 *AsciiString;\r | |
662 | CHAR8 EfiFileName[512];\r | |
663 | INT32 Index;\r | |
664 | INT32 StartIndex;\r | |
665 | \r | |
666 | //\r | |
667 | // Print debug message: Loading PEIM at 0x12345678 EntryPoint=0x12345688 Driver.efi\r | |
668 | //\r | |
669 | if (Machine != EFI_IMAGE_MACHINE_IA64) {\r | |
670 | DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Loading PEIM at 0x%11p EntryPoint=0x%11p ", (VOID *)(UINTN)ImageAddress, (VOID *)(UINTN)*EntryPoint));\r | |
671 | } else {\r | |
672 | //\r | |
673 | // For IPF Image, the real entry point should be print.\r | |
674 | //\r | |
675 | DEBUG ((EFI_D_INFO | EFI_D_LOAD, "Loading PEIM at 0x%11p EntryPoint=0x%11p ", (VOID *)(UINTN)ImageAddress, (VOID *)(UINTN)(*(UINT64 *)(UINTN)*EntryPoint)));\r | |
676 | }\r | |
677 | \r | |
678 | //\r | |
679 | // Print Module Name by PeImage PDB file name.\r | |
680 | //\r | |
681 | AsciiString = PeCoffLoaderGetPdbPointer (Pe32Data);\r | |
682 | \r | |
683 | if (AsciiString != NULL) {\r | |
684 | StartIndex = 0;\r | |
685 | for (Index = 0; AsciiString[Index] != 0; Index++) {\r | |
686 | if (AsciiString[Index] == '\\' || AsciiString[Index] == '/') {\r | |
687 | StartIndex = Index + 1;\r | |
688 | }\r | |
689 | }\r | |
690 | \r | |
691 | //\r | |
692 | // Copy the PDB file name to our temporary string, and replace .pdb with .efi\r | |
693 | // The PDB file name is limited in the range of 0~511.\r | |
694 | // If the length is bigger than 511, trim the redudant characters to avoid overflow in array boundary.\r | |
695 | //\r | |
696 | for (Index = 0; Index < sizeof (EfiFileName) - 4; Index++) {\r | |
697 | EfiFileName[Index] = AsciiString[Index + StartIndex];\r | |
698 | if (EfiFileName[Index] == 0) {\r | |
699 | EfiFileName[Index] = '.';\r | |
700 | }\r | |
701 | if (EfiFileName[Index] == '.') {\r | |
702 | EfiFileName[Index + 1] = 'e';\r | |
703 | EfiFileName[Index + 2] = 'f';\r | |
704 | EfiFileName[Index + 3] = 'i';\r | |
705 | EfiFileName[Index + 4] = 0;\r | |
706 | break;\r | |
707 | }\r | |
708 | }\r | |
709 | \r | |
710 | if (Index == sizeof (EfiFileName) - 4) {\r | |
711 | EfiFileName[Index] = 0;\r | |
712 | }\r | |
713 | \r | |
714 | DEBUG ((EFI_D_INFO | EFI_D_LOAD, "%a", EfiFileName));\r | |
715 | }\r | |
716 | \r | |
717 | DEBUG_CODE_END ();\r | |
718 | \r | |
719 | DEBUG ((EFI_D_INFO | EFI_D_LOAD, "\n"));\r | |
720 | \r | |
721 | return EFI_SUCCESS;\r | |
722 | \r | |
723 | }\r | |
724 | \r | |
725 | \r | |
726 | /**\r | |
727 | The wrapper function of PeiLoadImageLoadImage().\r | |
728 | \r | |
729 | @param This - Pointer to EFI_PEI_LOAD_FILE_PPI.\r | |
730 | @param FileHandle - Pointer to the FFS file header of the image.\r | |
731 | @param ImageAddressArg - Pointer to PE/TE image.\r | |
732 | @param ImageSizeArg - Size of PE/TE image.\r | |
733 | @param EntryPoint - Pointer to entry point of specified image file for output.\r | |
734 | @param AuthenticationState - Pointer to attestation authentication state of image.\r | |
735 | \r | |
736 | @return Status of PeiLoadImageLoadImage().\r | |
737 | \r | |
738 | **/\r | |
739 | EFI_STATUS\r | |
740 | EFIAPI\r | |
741 | PeiLoadImageLoadImageWrapper (\r | |
742 | IN CONST EFI_PEI_LOAD_FILE_PPI *This,\r | |
743 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
744 | OUT EFI_PHYSICAL_ADDRESS *ImageAddressArg, OPTIONAL\r | |
745 | OUT UINT64 *ImageSizeArg, OPTIONAL\r | |
746 | OUT EFI_PHYSICAL_ADDRESS *EntryPoint,\r | |
747 | OUT UINT32 *AuthenticationState\r | |
748 | )\r | |
749 | {\r | |
750 | return PeiLoadImageLoadImage (\r | |
751 | GetPeiServicesTablePointer (),\r | |
752 | FileHandle,\r | |
753 | ImageAddressArg,\r | |
754 | ImageSizeArg,\r | |
755 | EntryPoint,\r | |
756 | AuthenticationState\r | |
757 | );\r | |
758 | }\r | |
759 | \r | |
760 | /**\r | |
761 | Check whether the input image has the relocation.\r | |
762 | \r | |
763 | @param Pe32Data Pointer to the PE/COFF or TE image.\r | |
764 | \r | |
765 | @retval TRUE Relocation is stripped.\r | |
766 | @retval FALSE Relocation is not stripped.\r | |
767 | \r | |
768 | **/\r | |
769 | BOOLEAN\r | |
770 | RelocationIsStrip (\r | |
771 | IN VOID *Pe32Data\r | |
772 | )\r | |
773 | {\r | |
774 | EFI_IMAGE_OPTIONAL_HEADER_PTR_UNION Hdr;\r | |
775 | EFI_IMAGE_DOS_HEADER *DosHdr;\r | |
776 | \r | |
777 | ASSERT (Pe32Data != NULL);\r | |
778 | \r | |
779 | DosHdr = (EFI_IMAGE_DOS_HEADER *)Pe32Data;\r | |
780 | if (DosHdr->e_magic == EFI_IMAGE_DOS_SIGNATURE) {\r | |
781 | //\r | |
782 | // DOS image header is present, so read the PE header after the DOS image header.\r | |
783 | //\r | |
784 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)((UINTN) Pe32Data + (UINTN) ((DosHdr->e_lfanew) & 0x0ffff));\r | |
785 | } else {\r | |
786 | //\r | |
787 | // DOS image header is not present, so PE header is at the image base.\r | |
788 | //\r | |
789 | Hdr.Pe32 = (EFI_IMAGE_NT_HEADERS32 *)Pe32Data;\r | |
790 | }\r | |
791 | \r | |
792 | //\r | |
793 | // Three cases with regards to relocations:\r | |
794 | // - Image has base relocs, RELOCS_STRIPPED==0 => image is relocatable\r | |
795 | // - Image has no base relocs, RELOCS_STRIPPED==1 => Image is not relocatable\r | |
796 | // - Image has no base relocs, RELOCS_STRIPPED==0 => Image is relocatable but\r | |
797 | // has no base relocs to apply\r | |
798 | // Obviously having base relocations with RELOCS_STRIPPED==1 is invalid.\r | |
799 | //\r | |
800 | // Look at the file header to determine if relocations have been stripped, and\r | |
801 | // save this info in the image context for later use.\r | |
802 | //\r | |
803 | if (Hdr.Te->Signature == EFI_TE_IMAGE_HEADER_SIGNATURE) {\r | |
804 | if ((Hdr.Te->DataDirectory[0].Size == 0) && (Hdr.Te->DataDirectory[0].VirtualAddress == 0)) {\r | |
805 | return TRUE;\r | |
806 | } else {\r | |
807 | return FALSE;\r | |
808 | }\r | |
809 | } else if (Hdr.Pe32->Signature == EFI_IMAGE_NT_SIGNATURE) {\r | |
810 | if ((Hdr.Pe32->FileHeader.Characteristics & EFI_IMAGE_FILE_RELOCS_STRIPPED) != 0) {\r | |
811 | return TRUE;\r | |
812 | } else {\r | |
813 | return FALSE;\r | |
814 | }\r | |
815 | }\r | |
816 | \r | |
817 | return FALSE;\r | |
818 | }\r | |
819 | \r | |
820 | /**\r | |
821 | Routine to load image file for subsequent execution by LoadFile Ppi.\r | |
822 | If any LoadFile Ppi is not found, the build-in support function for the PE32+/TE\r | |
823 | XIP image format is used.\r | |
824 | \r | |
825 | @param PeiServices - An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation\r | |
826 | @param FileHandle - Pointer to the FFS file header of the image.\r | |
827 | @param PeimState - The dispatch state of the input PEIM handle.\r | |
828 | @param EntryPoint - Pointer to entry point of specified image file for output.\r | |
829 | @param AuthenticationState - Pointer to attestation authentication state of image.\r | |
830 | \r | |
831 | @retval EFI_SUCCESS - Image is successfully loaded.\r | |
832 | @retval EFI_NOT_FOUND - Fail to locate necessary PPI\r | |
833 | @retval Others - Fail to load file.\r | |
834 | \r | |
835 | **/\r | |
836 | EFI_STATUS\r | |
837 | PeiLoadImage (\r | |
838 | IN CONST EFI_PEI_SERVICES **PeiServices,\r | |
839 | IN EFI_PEI_FILE_HANDLE FileHandle,\r | |
840 | IN UINT8 PeimState,\r | |
841 | OUT EFI_PHYSICAL_ADDRESS *EntryPoint,\r | |
842 | OUT UINT32 *AuthenticationState\r | |
843 | )\r | |
844 | {\r | |
845 | EFI_STATUS PpiStatus;\r | |
846 | EFI_STATUS Status;\r | |
847 | UINTN Index;\r | |
848 | EFI_PEI_LOAD_FILE_PPI *LoadFile;\r | |
849 | EFI_PHYSICAL_ADDRESS ImageAddress;\r | |
850 | UINT64 ImageSize;\r | |
851 | BOOLEAN IsStrip;\r | |
852 | \r | |
853 | IsStrip = FALSE;\r | |
854 | //\r | |
855 | // If any instances of PEI_LOAD_FILE_PPI are installed, they are called.\r | |
856 | // one at a time, until one reports EFI_SUCCESS.\r | |
857 | //\r | |
858 | Index = 0;\r | |
859 | do {\r | |
860 | PpiStatus = PeiServicesLocatePpi (\r | |
861 | &gEfiPeiLoadFilePpiGuid,\r | |
862 | Index,\r | |
863 | NULL,\r | |
864 | (VOID **)&LoadFile\r | |
865 | );\r | |
866 | if (!EFI_ERROR (PpiStatus)) {\r | |
867 | Status = LoadFile->LoadFile (\r | |
868 | LoadFile,\r | |
869 | FileHandle,\r | |
870 | &ImageAddress,\r | |
871 | &ImageSize,\r | |
872 | EntryPoint,\r | |
873 | AuthenticationState\r | |
874 | );\r | |
875 | if (!EFI_ERROR (Status) || Status == EFI_WARN_BUFFER_TOO_SMALL) {\r | |
876 | //\r | |
877 | // The shadowed PEIM must be relocatable.\r | |
878 | //\r | |
879 | if (PeimState == PEIM_STATE_REGISTER_FOR_SHADOW) {\r | |
880 | IsStrip = RelocationIsStrip ((VOID *) (UINTN) ImageAddress);\r | |
881 | ASSERT (!IsStrip);\r | |
882 | if (IsStrip) {\r | |
883 | return EFI_UNSUPPORTED;\r | |
884 | }\r | |
885 | }\r | |
886 | \r | |
887 | //\r | |
888 | // The image to be started must have the machine type supported by PeiCore.\r | |
889 | //\r | |
890 | ASSERT (EFI_IMAGE_MACHINE_TYPE_SUPPORTED (PeCoffLoaderGetMachineType ((VOID *) (UINTN) ImageAddress)));\r | |
891 | if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (PeCoffLoaderGetMachineType ((VOID *) (UINTN) ImageAddress))) {\r | |
892 | return EFI_UNSUPPORTED;\r | |
893 | }\r | |
894 | return EFI_SUCCESS;\r | |
895 | }\r | |
896 | }\r | |
897 | Index++;\r | |
898 | } while (!EFI_ERROR (PpiStatus));\r | |
899 | \r | |
900 | return PpiStatus;\r | |
901 | }\r | |
902 | \r | |
903 | \r | |
904 | /**\r | |
905 | \r | |
906 | Install Pei Load File PPI.\r | |
907 | \r | |
908 | \r | |
909 | @param PrivateData - Pointer to PEI_CORE_INSTANCE.\r | |
910 | @param OldCoreData - Pointer to PEI_CORE_INSTANCE.\r | |
911 | \r | |
912 | **/\r | |
913 | VOID\r | |
914 | InitializeImageServices (\r | |
915 | IN PEI_CORE_INSTANCE *PrivateData,\r | |
916 | IN PEI_CORE_INSTANCE *OldCoreData\r | |
917 | )\r | |
918 | {\r | |
919 | if (OldCoreData == NULL) {\r | |
920 | //\r | |
921 | // The first time we are XIP (running from FLASH). We need to remember the\r | |
922 | // FLASH address so we can reinstall the memory version that runs faster\r | |
923 | //\r | |
924 | PrivateData->XipLoadFile = &gPpiLoadFilePpiList;\r | |
925 | PeiServicesInstallPpi (PrivateData->XipLoadFile);\r | |
926 | } else {\r | |
927 | //\r | |
928 | // 2nd time we are running from memory so replace the XIP version with the\r | |
929 | // new memory version.\r | |
930 | //\r | |
931 | PeiServicesReInstallPpi (PrivateData->XipLoadFile, &gPpiLoadFilePpiList);\r | |
932 | }\r | |
933 | }\r | |
934 | \r | |
935 | \r | |
936 | \r | |
937 | \r |