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Fix the memory leak issue and enhance the check for CoreReadImageFile return.
[mirror_edk2.git] / MdeModulePkg / Core / Dxe / Image / Image.c
1 /** @file
2 Core image handling services to load and unload PeImage.
3
4 Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "DxeMain.h"
16 #include "Image.h"
17
18 //
19 // Module Globals
20 //
21 LOADED_IMAGE_PRIVATE_DATA *mCurrentImage = NULL;
22
23 LOAD_PE32_IMAGE_PRIVATE_DATA mLoadPe32PrivateData = {
24 LOAD_PE32_IMAGE_PRIVATE_DATA_SIGNATURE,
25 NULL,
26 {
27 CoreLoadImageEx,
28 CoreUnloadImageEx
29 }
30 };
31
32
33 //
34 // This code is needed to build the Image handle for the DXE Core
35 //
36 LOADED_IMAGE_PRIVATE_DATA mCorePrivateImage = {
37 LOADED_IMAGE_PRIVATE_DATA_SIGNATURE, // Signature
38 NULL, // Image handle
39 EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER, // Image type
40 TRUE, // If entrypoint has been called
41 NULL, // EntryPoint
42 {
43 EFI_LOADED_IMAGE_INFORMATION_REVISION, // Revision
44 NULL, // Parent handle
45 NULL, // System handle
46
47 NULL, // Device handle
48 NULL, // File path
49 NULL, // Reserved
50
51 0, // LoadOptionsSize
52 NULL, // LoadOptions
53
54 NULL, // ImageBase
55 0, // ImageSize
56 EfiBootServicesCode, // ImageCodeType
57 EfiBootServicesData // ImageDataType
58 },
59 (EFI_PHYSICAL_ADDRESS)0, // ImageBasePage
60 0, // NumberOfPages
61 NULL, // FixupData
62 0, // Tpl
63 EFI_SUCCESS, // Status
64 0, // ExitDataSize
65 NULL, // ExitData
66 NULL, // JumpBuffer
67 NULL, // JumpContext
68 0, // Machine
69 NULL, // Ebc
70 NULL, // RuntimeData
71 NULL // LoadedImageDevicePath
72 };
73 //
74 // The field is define for Loading modules at fixed address feature to tracker the PEI code
75 // memory range usage. It is a bit mapped array in which every bit indicates the correspoding memory page
76 // available or not.
77 //
78 GLOBAL_REMOVE_IF_UNREFERENCED UINT64 *mDxeCodeMemoryRangeUsageBitMap=NULL;
79
80 typedef struct {
81 UINT16 MachineType;
82 CHAR16 *MachineTypeName;
83 } MACHINE_TYPE_INFO;
84
85 //
86 // EBC machine is not listed in this table, because EBC is in the default supported scopes of other machine type.
87 //
88 GLOBAL_REMOVE_IF_UNREFERENCED MACHINE_TYPE_INFO mMachineTypeInfo[] = {
89 {EFI_IMAGE_MACHINE_IA32, L"IA32"},
90 {EFI_IMAGE_MACHINE_IA64, L"IA64"},
91 {EFI_IMAGE_MACHINE_X64, L"X64"},
92 {EFI_IMAGE_MACHINE_ARMTHUMB_MIXED, L"ARM"}
93 };
94
95 UINT16 mDxeCoreImageMachineType = 0;
96
97 /**
98 Return machine type name.
99
100 @param MachineType The machine type
101
102 @return machine type name
103 **/
104 CHAR16 *
105 GetMachineTypeName (
106 UINT16 MachineType
107 )
108 {
109 UINTN Index;
110
111 for (Index = 0; Index < sizeof(mMachineTypeInfo)/sizeof(mMachineTypeInfo[0]); Index++) {
112 if (mMachineTypeInfo[Index].MachineType == MachineType) {
113 return mMachineTypeInfo[Index].MachineTypeName;
114 }
115 }
116
117 return L"<Unknown>";
118 }
119
120 /**
121 Add the Image Services to EFI Boot Services Table and install the protocol
122 interfaces for this image.
123
124 @param HobStart The HOB to initialize
125
126 @return Status code.
127
128 **/
129 EFI_STATUS
130 CoreInitializeImageServices (
131 IN VOID *HobStart
132 )
133 {
134 EFI_STATUS Status;
135 LOADED_IMAGE_PRIVATE_DATA *Image;
136 EFI_PHYSICAL_ADDRESS DxeCoreImageBaseAddress;
137 UINT64 DxeCoreImageLength;
138 VOID *DxeCoreEntryPoint;
139 EFI_PEI_HOB_POINTERS DxeCoreHob;
140
141 //
142 // Searching for image hob
143 //
144 DxeCoreHob.Raw = HobStart;
145 while ((DxeCoreHob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, DxeCoreHob.Raw)) != NULL) {
146 if (CompareGuid (&DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.Name, &gEfiHobMemoryAllocModuleGuid)) {
147 //
148 // Find Dxe Core HOB
149 //
150 break;
151 }
152 DxeCoreHob.Raw = GET_NEXT_HOB (DxeCoreHob);
153 }
154 ASSERT (DxeCoreHob.Raw != NULL);
155
156 DxeCoreImageBaseAddress = DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.MemoryBaseAddress;
157 DxeCoreImageLength = DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.MemoryLength;
158 DxeCoreEntryPoint = (VOID *) (UINTN) DxeCoreHob.MemoryAllocationModule->EntryPoint;
159 gDxeCoreFileName = &DxeCoreHob.MemoryAllocationModule->ModuleName;
160
161 //
162 // Initialize the fields for an internal driver
163 //
164 Image = &mCorePrivateImage;
165
166 Image->EntryPoint = (EFI_IMAGE_ENTRY_POINT)(UINTN)DxeCoreEntryPoint;
167 Image->ImageBasePage = DxeCoreImageBaseAddress;
168 Image->NumberOfPages = (UINTN)(EFI_SIZE_TO_PAGES((UINTN)(DxeCoreImageLength)));
169 Image->Tpl = gEfiCurrentTpl;
170 Image->Info.SystemTable = gDxeCoreST;
171 Image->Info.ImageBase = (VOID *)(UINTN)DxeCoreImageBaseAddress;
172 Image->Info.ImageSize = DxeCoreImageLength;
173
174 //
175 // Install the protocol interfaces for this image
176 //
177 Status = CoreInstallProtocolInterface (
178 &Image->Handle,
179 &gEfiLoadedImageProtocolGuid,
180 EFI_NATIVE_INTERFACE,
181 &Image->Info
182 );
183 ASSERT_EFI_ERROR (Status);
184
185 mCurrentImage = Image;
186
187 //
188 // Fill in DXE globals
189 //
190 mDxeCoreImageMachineType = PeCoffLoaderGetMachineType (Image->Info.ImageBase);
191 gDxeCoreImageHandle = Image->Handle;
192 gDxeCoreLoadedImage = &Image->Info;
193
194 if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
195 //
196 // Export DXE Core PE Loader functionality for backward compatibility.
197 //
198 Status = CoreInstallProtocolInterface (
199 &mLoadPe32PrivateData.Handle,
200 &gEfiLoadPeImageProtocolGuid,
201 EFI_NATIVE_INTERFACE,
202 &mLoadPe32PrivateData.Pe32Image
203 );
204 }
205
206 return Status;
207 }
208
209 /**
210 Read image file (specified by UserHandle) into user specified buffer with specified offset
211 and length.
212
213 @param UserHandle Image file handle
214 @param Offset Offset to the source file
215 @param ReadSize For input, pointer of size to read; For output,
216 pointer of size actually read.
217 @param Buffer Buffer to write into
218
219 @retval EFI_SUCCESS Successfully read the specified part of file
220 into buffer.
221
222 **/
223 EFI_STATUS
224 EFIAPI
225 CoreReadImageFile (
226 IN VOID *UserHandle,
227 IN UINTN Offset,
228 IN OUT UINTN *ReadSize,
229 OUT VOID *Buffer
230 )
231 {
232 UINTN EndPosition;
233 IMAGE_FILE_HANDLE *FHand;
234
235 if (UserHandle == NULL || ReadSize == NULL || Buffer == NULL) {
236 return EFI_INVALID_PARAMETER;
237 }
238
239 if (MAX_ADDRESS - Offset < *ReadSize) {
240 return EFI_INVALID_PARAMETER;
241 }
242
243 FHand = (IMAGE_FILE_HANDLE *)UserHandle;
244 ASSERT (FHand->Signature == IMAGE_FILE_HANDLE_SIGNATURE);
245
246 //
247 // Move data from our local copy of the file
248 //
249 EndPosition = Offset + *ReadSize;
250 if (EndPosition > FHand->SourceSize) {
251 *ReadSize = (UINT32)(FHand->SourceSize - Offset);
252 }
253 if (Offset >= FHand->SourceSize) {
254 *ReadSize = 0;
255 }
256
257 CopyMem (Buffer, (CHAR8 *)FHand->Source + Offset, *ReadSize);
258 return EFI_SUCCESS;
259 }
260 /**
261 To check memory usage bit map arry to figure out if the memory range the image will be loaded in is available or not. If
262 memory range is avaliable, the function will mark the correponding bits to 1 which indicates the memory range is used.
263 The function is only invoked when load modules at fixed address feature is enabled.
264
265 @param ImageBase The base addres the image will be loaded at.
266 @param ImageSize The size of the image
267
268 @retval EFI_SUCCESS The memory range the image will be loaded in is available
269 @retval EFI_NOT_FOUND The memory range the image will be loaded in is not available
270 **/
271 EFI_STATUS
272 CheckAndMarkFixLoadingMemoryUsageBitMap (
273 IN EFI_PHYSICAL_ADDRESS ImageBase,
274 IN UINTN ImageSize
275 )
276 {
277 UINT32 DxeCodePageNumber;
278 UINT64 DxeCodeSize;
279 EFI_PHYSICAL_ADDRESS DxeCodeBase;
280 UINTN BaseOffsetPageNumber;
281 UINTN TopOffsetPageNumber;
282 UINTN Index;
283 //
284 // The DXE code range includes RuntimeCodePage range and Boot time code range.
285 //
286 DxeCodePageNumber = PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);
287 DxeCodePageNumber += PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);
288 DxeCodeSize = EFI_PAGES_TO_SIZE(DxeCodePageNumber);
289 DxeCodeBase = gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress - DxeCodeSize;
290
291 //
292 // If the memory usage bit map is not initialized, do it. Every bit in the array
293 // indicate the status of the corresponding memory page, available or not
294 //
295 if (mDxeCodeMemoryRangeUsageBitMap == NULL) {
296 mDxeCodeMemoryRangeUsageBitMap = AllocateZeroPool(((DxeCodePageNumber/64) + 1)*sizeof(UINT64));
297 }
298 //
299 // If the Dxe code memory range is not allocated or the bit map array allocation failed, return EFI_NOT_FOUND
300 //
301 if (!gLoadFixedAddressCodeMemoryReady || mDxeCodeMemoryRangeUsageBitMap == NULL) {
302 return EFI_NOT_FOUND;
303 }
304 //
305 // Test the memory range for loading the image in the DXE code range.
306 //
307 if (gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress < ImageBase + ImageSize ||
308 DxeCodeBase > ImageBase) {
309 return EFI_NOT_FOUND;
310 }
311 //
312 // Test if the memory is avalaible or not.
313 //
314 BaseOffsetPageNumber = (UINTN)EFI_SIZE_TO_PAGES((UINT32)(ImageBase - DxeCodeBase));
315 TopOffsetPageNumber = (UINTN)EFI_SIZE_TO_PAGES((UINT32)(ImageBase + ImageSize - DxeCodeBase));
316 for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {
317 if ((mDxeCodeMemoryRangeUsageBitMap[Index / 64] & LShiftU64(1, (Index % 64))) != 0) {
318 //
319 // This page is already used.
320 //
321 return EFI_NOT_FOUND;
322 }
323 }
324
325 //
326 // Being here means the memory range is available. So mark the bits for the memory range
327 //
328 for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {
329 mDxeCodeMemoryRangeUsageBitMap[Index / 64] |= LShiftU64(1, (Index % 64));
330 }
331 return EFI_SUCCESS;
332 }
333 /**
334
335 Get the fixed loadding address from image header assigned by build tool. This function only be called
336 when Loading module at Fixed address feature enabled.
337
338 @param ImageContext Pointer to the image context structure that describes the PE/COFF
339 image that needs to be examined by this function.
340 @retval EFI_SUCCESS An fixed loading address is assigned to this image by build tools .
341 @retval EFI_NOT_FOUND The image has no assigned fixed loadding address.
342
343 **/
344 EFI_STATUS
345 GetPeCoffImageFixLoadingAssignedAddress(
346 IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
347 )
348 {
349 UINTN SectionHeaderOffset;
350 EFI_STATUS Status;
351 EFI_IMAGE_SECTION_HEADER SectionHeader;
352 EFI_IMAGE_OPTIONAL_HEADER_UNION *ImgHdr;
353 UINT16 Index;
354 UINTN Size;
355 UINT16 NumberOfSections;
356 IMAGE_FILE_HANDLE *Handle;
357 UINT64 ValueInSectionHeader;
358
359
360 Status = EFI_NOT_FOUND;
361
362 //
363 // Get PeHeader pointer
364 //
365 Handle = (IMAGE_FILE_HANDLE*)ImageContext->Handle;
366 ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((CHAR8* )Handle->Source + ImageContext->PeCoffHeaderOffset);
367 SectionHeaderOffset = (UINTN)(
368 ImageContext->PeCoffHeaderOffset +
369 sizeof (UINT32) +
370 sizeof (EFI_IMAGE_FILE_HEADER) +
371 ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader
372 );
373 NumberOfSections = ImgHdr->Pe32.FileHeader.NumberOfSections;
374
375 //
376 // Get base address from the first section header that doesn't point to code section.
377 //
378 for (Index = 0; Index < NumberOfSections; Index++) {
379 //
380 // Read section header from file
381 //
382 Size = sizeof (EFI_IMAGE_SECTION_HEADER);
383 Status = ImageContext->ImageRead (
384 ImageContext->Handle,
385 SectionHeaderOffset,
386 &Size,
387 &SectionHeader
388 );
389 if (EFI_ERROR (Status)) {
390 return Status;
391 }
392 if (Size != sizeof (EFI_IMAGE_SECTION_HEADER)) {
393 return EFI_NOT_FOUND;
394 }
395
396 Status = EFI_NOT_FOUND;
397
398 if ((SectionHeader.Characteristics & EFI_IMAGE_SCN_CNT_CODE) == 0) {
399 //
400 // Build tool will save the address in PointerToRelocations & PointerToLineNumbers fields in the first section header
401 // that doesn't point to code section in image header, as well as ImageBase field of image header. And there is an
402 // assumption that when the feature is enabled, if a module is assigned a loading address by tools, PointerToRelocations
403 // & PointerToLineNumbers fields should NOT be Zero, or else, these 2 fileds should be set to Zero
404 //
405 ValueInSectionHeader = ReadUnaligned64((UINT64*)&SectionHeader.PointerToRelocations);
406 if (ValueInSectionHeader != 0) {
407 //
408 // When the feature is configured as load module at fixed absolute address, the ImageAddress field of ImageContext
409 // hold the spcified address. If the feature is configured as load module at fixed offset, ImageAddress hold an offset
410 // relative to top address
411 //
412 if ((INT64)PcdGet64(PcdLoadModuleAtFixAddressEnable) < 0) {
413 ImageContext->ImageAddress = gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress + (INT64)(INTN)ImageContext->ImageAddress;
414 }
415 //
416 // Check if the memory range is avaliable.
417 //
418 Status = CheckAndMarkFixLoadingMemoryUsageBitMap (ImageContext->ImageAddress, (UINTN)(ImageContext->ImageSize + ImageContext->SectionAlignment));
419 }
420 break;
421 }
422 SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);
423 }
424 DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED INFO: Loading module at fixed address 0x%11p. Status = %r \n", (VOID *)(UINTN)(ImageContext->ImageAddress), Status));
425 return Status;
426 }
427 /**
428 Loads, relocates, and invokes a PE/COFF image
429
430 @param BootPolicy If TRUE, indicates that the request originates
431 from the boot manager, and that the boot
432 manager is attempting to load FilePath as a
433 boot selection.
434 @param Pe32Handle The handle of PE32 image
435 @param Image PE image to be loaded
436 @param DstBuffer The buffer to store the image
437 @param EntryPoint A pointer to the entry point
438 @param Attribute The bit mask of attributes to set for the load
439 PE image
440
441 @retval EFI_SUCCESS The file was loaded, relocated, and invoked
442 @retval EFI_OUT_OF_RESOURCES There was not enough memory to load and
443 relocate the PE/COFF file
444 @retval EFI_INVALID_PARAMETER Invalid parameter
445 @retval EFI_BUFFER_TOO_SMALL Buffer for image is too small
446
447 **/
448 EFI_STATUS
449 CoreLoadPeImage (
450 IN BOOLEAN BootPolicy,
451 IN VOID *Pe32Handle,
452 IN LOADED_IMAGE_PRIVATE_DATA *Image,
453 IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
454 OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
455 IN UINT32 Attribute
456 )
457 {
458 EFI_STATUS Status;
459 BOOLEAN DstBufAlocated;
460 UINTN Size;
461
462 ZeroMem (&Image->ImageContext, sizeof (Image->ImageContext));
463
464 Image->ImageContext.Handle = Pe32Handle;
465 Image->ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE)CoreReadImageFile;
466
467 //
468 // Get information about the image being loaded
469 //
470 Status = PeCoffLoaderGetImageInfo (&Image->ImageContext);
471 if (EFI_ERROR (Status)) {
472 return Status;
473 }
474
475 if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->ImageContext.Machine)) {
476 if (!EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Image->ImageContext.Machine)) {
477 //
478 // The PE/COFF loader can support loading image types that can be executed.
479 // If we loaded an image type that we can not execute return EFI_UNSUPORTED.
480 //
481 DEBUG ((EFI_D_ERROR, "Image type %s can't be loaded ", GetMachineTypeName(Image->ImageContext.Machine)));
482 DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n", GetMachineTypeName(mDxeCoreImageMachineType)));
483 return EFI_UNSUPPORTED;
484 }
485 }
486
487 //
488 // Set EFI memory type based on ImageType
489 //
490 switch (Image->ImageContext.ImageType) {
491 case EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION:
492 Image->ImageContext.ImageCodeMemoryType = EfiLoaderCode;
493 Image->ImageContext.ImageDataMemoryType = EfiLoaderData;
494 break;
495 case EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
496 Image->ImageContext.ImageCodeMemoryType = EfiBootServicesCode;
497 Image->ImageContext.ImageDataMemoryType = EfiBootServicesData;
498 break;
499 case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
500 case EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
501 Image->ImageContext.ImageCodeMemoryType = EfiRuntimeServicesCode;
502 Image->ImageContext.ImageDataMemoryType = EfiRuntimeServicesData;
503 break;
504 default:
505 Image->ImageContext.ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;
506 return EFI_UNSUPPORTED;
507 }
508
509 //
510 // Allocate memory of the correct memory type aligned on the required image boundry
511 //
512 DstBufAlocated = FALSE;
513 if (DstBuffer == 0) {
514 //
515 // Allocate Destination Buffer as caller did not pass it in
516 //
517
518 if (Image->ImageContext.SectionAlignment > EFI_PAGE_SIZE) {
519 Size = (UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment;
520 } else {
521 Size = (UINTN)Image->ImageContext.ImageSize;
522 }
523
524 Image->NumberOfPages = EFI_SIZE_TO_PAGES (Size);
525
526 //
527 // If the image relocations have not been stripped, then load at any address.
528 // Otherwise load at the address at which it was linked.
529 //
530 // Memory below 1MB should be treated reserved for CSM and there should be
531 // no modules whose preferred load addresses are below 1MB.
532 //
533 Status = EFI_OUT_OF_RESOURCES;
534 //
535 // If Loading Module At Fixed Address feature is enabled, the module should be loaded to
536 // a specified address.
537 //
538 if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0 ) {
539 Status = GetPeCoffImageFixLoadingAssignedAddress (&(Image->ImageContext));
540
541 if (EFI_ERROR (Status)) {
542 //
543 // If the code memory is not ready, invoke CoreAllocatePage with AllocateAnyPages to load the driver.
544 //
545 DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED ERROR: Loading module at fixed address failed since specified memory is not available.\n"));
546
547 Status = CoreAllocatePages (
548 AllocateAnyPages,
549 (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
550 Image->NumberOfPages,
551 &Image->ImageContext.ImageAddress
552 );
553 }
554 } else {
555 if (Image->ImageContext.ImageAddress >= 0x100000 || Image->ImageContext.RelocationsStripped) {
556 Status = CoreAllocatePages (
557 AllocateAddress,
558 (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
559 Image->NumberOfPages,
560 &Image->ImageContext.ImageAddress
561 );
562 }
563 if (EFI_ERROR (Status) && !Image->ImageContext.RelocationsStripped) {
564 Status = CoreAllocatePages (
565 AllocateAnyPages,
566 (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
567 Image->NumberOfPages,
568 &Image->ImageContext.ImageAddress
569 );
570 }
571 }
572 if (EFI_ERROR (Status)) {
573 return Status;
574 }
575 DstBufAlocated = TRUE;
576 } else {
577 //
578 // Caller provided the destination buffer
579 //
580
581 if (Image->ImageContext.RelocationsStripped && (Image->ImageContext.ImageAddress != DstBuffer)) {
582 //
583 // If the image relocations were stripped, and the caller provided a
584 // destination buffer address that does not match the address that the
585 // image is linked at, then the image cannot be loaded.
586 //
587 return EFI_INVALID_PARAMETER;
588 }
589
590 if (Image->NumberOfPages != 0 &&
591 Image->NumberOfPages <
592 (EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment))) {
593 Image->NumberOfPages = EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment);
594 return EFI_BUFFER_TOO_SMALL;
595 }
596
597 Image->NumberOfPages = EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment);
598 Image->ImageContext.ImageAddress = DstBuffer;
599 }
600
601 Image->ImageBasePage = Image->ImageContext.ImageAddress;
602 if (!Image->ImageContext.IsTeImage) {
603 Image->ImageContext.ImageAddress =
604 (Image->ImageContext.ImageAddress + Image->ImageContext.SectionAlignment - 1) &
605 ~((UINTN)Image->ImageContext.SectionAlignment - 1);
606 }
607
608 //
609 // Load the image from the file into the allocated memory
610 //
611 Status = PeCoffLoaderLoadImage (&Image->ImageContext);
612 if (EFI_ERROR (Status)) {
613 goto Done;
614 }
615
616 //
617 // If this is a Runtime Driver, then allocate memory for the FixupData that
618 // is used to relocate the image when SetVirtualAddressMap() is called. The
619 // relocation is done by the Runtime AP.
620 //
621 if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION) != 0) {
622 if (Image->ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {
623 Image->ImageContext.FixupData = AllocateRuntimePool ((UINTN)(Image->ImageContext.FixupDataSize));
624 if (Image->ImageContext.FixupData == NULL) {
625 Status = EFI_OUT_OF_RESOURCES;
626 goto Done;
627 }
628 }
629 }
630
631 //
632 // Relocate the image in memory
633 //
634 Status = PeCoffLoaderRelocateImage (&Image->ImageContext);
635 if (EFI_ERROR (Status)) {
636 goto Done;
637 }
638
639 //
640 // Flush the Instruction Cache
641 //
642 InvalidateInstructionCacheRange ((VOID *)(UINTN)Image->ImageContext.ImageAddress, (UINTN)Image->ImageContext.ImageSize);
643
644 //
645 // Copy the machine type from the context to the image private data. This
646 // is needed during image unload to know if we should call an EBC protocol
647 // to unload the image.
648 //
649 Image->Machine = Image->ImageContext.Machine;
650
651 //
652 // Get the image entry point. If it's an EBC image, then call into the
653 // interpreter to create a thunk for the entry point and use the returned
654 // value for the entry point.
655 //
656 Image->EntryPoint = (EFI_IMAGE_ENTRY_POINT)(UINTN)Image->ImageContext.EntryPoint;
657 if (Image->ImageContext.Machine == EFI_IMAGE_MACHINE_EBC) {
658 //
659 // Locate the EBC interpreter protocol
660 //
661 Status = CoreLocateProtocol (&gEfiEbcProtocolGuid, NULL, (VOID **)&Image->Ebc);
662 if (EFI_ERROR(Status) || Image->Ebc == NULL) {
663 DEBUG ((DEBUG_LOAD | DEBUG_ERROR, "CoreLoadPeImage: There is no EBC interpreter for an EBC image.\n"));
664 goto Done;
665 }
666
667 //
668 // Register a callback for flushing the instruction cache so that created
669 // thunks can be flushed.
670 //
671 Status = Image->Ebc->RegisterICacheFlush (Image->Ebc, (EBC_ICACHE_FLUSH)InvalidateInstructionCacheRange);
672 if (EFI_ERROR(Status)) {
673 goto Done;
674 }
675
676 //
677 // Create a thunk for the image's entry point. This will be the new
678 // entry point for the image.
679 //
680 Status = Image->Ebc->CreateThunk (
681 Image->Ebc,
682 Image->Handle,
683 (VOID *)(UINTN) Image->ImageContext.EntryPoint,
684 (VOID **) &Image->EntryPoint
685 );
686 if (EFI_ERROR(Status)) {
687 goto Done;
688 }
689 }
690
691 //
692 // Fill in the image information for the Loaded Image Protocol
693 //
694 Image->Type = Image->ImageContext.ImageType;
695 Image->Info.ImageBase = (VOID *)(UINTN)Image->ImageContext.ImageAddress;
696 Image->Info.ImageSize = Image->ImageContext.ImageSize;
697 Image->Info.ImageCodeType = (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType);
698 Image->Info.ImageDataType = (EFI_MEMORY_TYPE) (Image->ImageContext.ImageDataMemoryType);
699 if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION) != 0) {
700 if (Image->ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {
701 //
702 // Make a list off all the RT images so we can let the RT AP know about them.
703 //
704 Image->RuntimeData = AllocateRuntimePool (sizeof(EFI_RUNTIME_IMAGE_ENTRY));
705 if (Image->RuntimeData == NULL) {
706 goto Done;
707 }
708 Image->RuntimeData->ImageBase = Image->Info.ImageBase;
709 Image->RuntimeData->ImageSize = (UINT64) (Image->Info.ImageSize);
710 Image->RuntimeData->RelocationData = Image->ImageContext.FixupData;
711 Image->RuntimeData->Handle = Image->Handle;
712 InsertTailList (&gRuntime->ImageHead, &Image->RuntimeData->Link);
713 }
714 }
715
716 //
717 // Fill in the entry point of the image if it is available
718 //
719 if (EntryPoint != NULL) {
720 *EntryPoint = Image->ImageContext.EntryPoint;
721 }
722
723 //
724 // Print the load address and the PDB file name if it is available
725 //
726
727 DEBUG_CODE_BEGIN ();
728
729 UINTN Index;
730 UINTN StartIndex;
731 CHAR8 EfiFileName[256];
732
733
734 DEBUG ((DEBUG_INFO | DEBUG_LOAD,
735 "Loading driver at 0x%11p EntryPoint=0x%11p ",
736 (VOID *)(UINTN) Image->ImageContext.ImageAddress,
737 FUNCTION_ENTRY_POINT (Image->ImageContext.EntryPoint)));
738
739
740 //
741 // Print Module Name by Pdb file path.
742 // Windows and Unix style file path are all trimmed correctly.
743 //
744 if (Image->ImageContext.PdbPointer != NULL) {
745 StartIndex = 0;
746 for (Index = 0; Image->ImageContext.PdbPointer[Index] != 0; Index++) {
747 if ((Image->ImageContext.PdbPointer[Index] == '\\') || (Image->ImageContext.PdbPointer[Index] == '/')) {
748 StartIndex = Index + 1;
749 }
750 }
751 //
752 // Copy the PDB file name to our temporary string, and replace .pdb with .efi
753 // The PDB file name is limited in the range of 0~255.
754 // If the length is bigger than 255, trim the redudant characters to avoid overflow in array boundary.
755 //
756 for (Index = 0; Index < sizeof (EfiFileName) - 4; Index++) {
757 EfiFileName[Index] = Image->ImageContext.PdbPointer[Index + StartIndex];
758 if (EfiFileName[Index] == 0) {
759 EfiFileName[Index] = '.';
760 }
761 if (EfiFileName[Index] == '.') {
762 EfiFileName[Index + 1] = 'e';
763 EfiFileName[Index + 2] = 'f';
764 EfiFileName[Index + 3] = 'i';
765 EfiFileName[Index + 4] = 0;
766 break;
767 }
768 }
769
770 if (Index == sizeof (EfiFileName) - 4) {
771 EfiFileName[Index] = 0;
772 }
773 DEBUG ((DEBUG_INFO | DEBUG_LOAD, "%a", EfiFileName)); // &Image->ImageContext.PdbPointer[StartIndex]));
774 }
775 DEBUG ((DEBUG_INFO | DEBUG_LOAD, "\n"));
776
777 DEBUG_CODE_END ();
778
779 return EFI_SUCCESS;
780
781 Done:
782
783 //
784 // Free memory.
785 //
786
787 if (DstBufAlocated) {
788 CoreFreePages (Image->ImageContext.ImageAddress, Image->NumberOfPages);
789 }
790
791 if (Image->ImageContext.FixupData != NULL) {
792 CoreFreePool (Image->ImageContext.FixupData);
793 }
794
795 return Status;
796 }
797
798
799
800 /**
801 Get the image's private data from its handle.
802
803 @param ImageHandle The image handle
804
805 @return Return the image private data associated with ImageHandle.
806
807 **/
808 LOADED_IMAGE_PRIVATE_DATA *
809 CoreLoadedImageInfo (
810 IN EFI_HANDLE ImageHandle
811 )
812 {
813 EFI_STATUS Status;
814 EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
815 LOADED_IMAGE_PRIVATE_DATA *Image;
816
817 Status = CoreHandleProtocol (
818 ImageHandle,
819 &gEfiLoadedImageProtocolGuid,
820 (VOID **)&LoadedImage
821 );
822 if (!EFI_ERROR (Status)) {
823 Image = LOADED_IMAGE_PRIVATE_DATA_FROM_THIS (LoadedImage);
824 } else {
825 DEBUG ((DEBUG_LOAD, "CoreLoadedImageInfo: Not an ImageHandle %p\n", ImageHandle));
826 Image = NULL;
827 }
828
829 return Image;
830 }
831
832
833 /**
834 Unloads EFI image from memory.
835
836 @param Image EFI image
837 @param FreePage Free allocated pages
838
839 **/
840 VOID
841 CoreUnloadAndCloseImage (
842 IN LOADED_IMAGE_PRIVATE_DATA *Image,
843 IN BOOLEAN FreePage
844 )
845 {
846 EFI_STATUS Status;
847 UINTN HandleCount;
848 EFI_HANDLE *HandleBuffer;
849 UINTN HandleIndex;
850 EFI_GUID **ProtocolGuidArray;
851 UINTN ArrayCount;
852 UINTN ProtocolIndex;
853 EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfo;
854 UINTN OpenInfoCount;
855 UINTN OpenInfoIndex;
856
857 if (Image->Ebc != NULL) {
858 //
859 // If EBC protocol exists we must perform cleanups for this image.
860 //
861 Image->Ebc->UnloadImage (Image->Ebc, Image->Handle);
862 }
863
864 //
865 // Unload image, free Image->ImageContext->ModHandle
866 //
867 PeCoffLoaderUnloadImage (&Image->ImageContext);
868
869 //
870 // Free our references to the image handle
871 //
872 if (Image->Handle != NULL) {
873
874 Status = CoreLocateHandleBuffer (
875 AllHandles,
876 NULL,
877 NULL,
878 &HandleCount,
879 &HandleBuffer
880 );
881 if (!EFI_ERROR (Status)) {
882 for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
883 Status = CoreProtocolsPerHandle (
884 HandleBuffer[HandleIndex],
885 &ProtocolGuidArray,
886 &ArrayCount
887 );
888 if (!EFI_ERROR (Status)) {
889 for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
890 Status = CoreOpenProtocolInformation (
891 HandleBuffer[HandleIndex],
892 ProtocolGuidArray[ProtocolIndex],
893 &OpenInfo,
894 &OpenInfoCount
895 );
896 if (!EFI_ERROR (Status)) {
897 for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
898 if (OpenInfo[OpenInfoIndex].AgentHandle == Image->Handle) {
899 Status = CoreCloseProtocol (
900 HandleBuffer[HandleIndex],
901 ProtocolGuidArray[ProtocolIndex],
902 Image->Handle,
903 OpenInfo[OpenInfoIndex].ControllerHandle
904 );
905 }
906 }
907 if (OpenInfo != NULL) {
908 CoreFreePool(OpenInfo);
909 }
910 }
911 }
912 if (ProtocolGuidArray != NULL) {
913 CoreFreePool(ProtocolGuidArray);
914 }
915 }
916 }
917 if (HandleBuffer != NULL) {
918 CoreFreePool (HandleBuffer);
919 }
920 }
921
922 CoreRemoveDebugImageInfoEntry (Image->Handle);
923
924 Status = CoreUninstallProtocolInterface (
925 Image->Handle,
926 &gEfiLoadedImageDevicePathProtocolGuid,
927 Image->LoadedImageDevicePath
928 );
929
930 Status = CoreUninstallProtocolInterface (
931 Image->Handle,
932 &gEfiLoadedImageProtocolGuid,
933 &Image->Info
934 );
935
936 if (Image->ImageContext.HiiResourceData != 0) {
937 Status = CoreUninstallProtocolInterface (
938 Image->Handle,
939 &gEfiHiiPackageListProtocolGuid,
940 (VOID *) (UINTN) Image->ImageContext.HiiResourceData
941 );
942 }
943
944 }
945
946 if (Image->RuntimeData != NULL) {
947 if (Image->RuntimeData->Link.ForwardLink != NULL) {
948 //
949 // Remove the Image from the Runtime Image list as we are about to Free it!
950 //
951 RemoveEntryList (&Image->RuntimeData->Link);
952 }
953 CoreFreePool (Image->RuntimeData);
954 }
955
956 //
957 // Free the Image from memory
958 //
959 if ((Image->ImageBasePage != 0) && FreePage) {
960 CoreFreePages (Image->ImageBasePage, Image->NumberOfPages);
961 }
962
963 //
964 // Done with the Image structure
965 //
966 if (Image->Info.FilePath != NULL) {
967 CoreFreePool (Image->Info.FilePath);
968 }
969
970 if (Image->LoadedImageDevicePath != NULL) {
971 CoreFreePool (Image->LoadedImageDevicePath);
972 }
973
974 if (Image->FixupData != NULL) {
975 CoreFreePool (Image->FixupData);
976 }
977
978 CoreFreePool (Image);
979 }
980
981
982 /**
983 Loads an EFI image into memory and returns a handle to the image.
984
985 @param BootPolicy If TRUE, indicates that the request originates
986 from the boot manager, and that the boot
987 manager is attempting to load FilePath as a
988 boot selection.
989 @param ParentImageHandle The caller's image handle.
990 @param FilePath The specific file path from which the image is
991 loaded.
992 @param SourceBuffer If not NULL, a pointer to the memory location
993 containing a copy of the image to be loaded.
994 @param SourceSize The size in bytes of SourceBuffer.
995 @param DstBuffer The buffer to store the image
996 @param NumberOfPages If not NULL, it inputs a pointer to the page
997 number of DstBuffer and outputs a pointer to
998 the page number of the image. If this number is
999 not enough, return EFI_BUFFER_TOO_SMALL and
1000 this parameter contains the required number.
1001 @param ImageHandle Pointer to the returned image handle that is
1002 created when the image is successfully loaded.
1003 @param EntryPoint A pointer to the entry point
1004 @param Attribute The bit mask of attributes to set for the load
1005 PE image
1006
1007 @retval EFI_SUCCESS The image was loaded into memory.
1008 @retval EFI_NOT_FOUND The FilePath was not found.
1009 @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
1010 @retval EFI_BUFFER_TOO_SMALL The buffer is too small
1011 @retval EFI_UNSUPPORTED The image type is not supported, or the device
1012 path cannot be parsed to locate the proper
1013 protocol for loading the file.
1014 @retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient
1015 resources.
1016 @retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
1017 understood.
1018 @retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
1019 @retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
1020 image from being loaded. NULL is returned in *ImageHandle.
1021 @retval EFI_SECURITY_VIOLATION Image was loaded and an ImageHandle was created with a
1022 valid EFI_LOADED_IMAGE_PROTOCOL. However, the current
1023 platform policy specifies that the image should not be started.
1024
1025 **/
1026 EFI_STATUS
1027 CoreLoadImageCommon (
1028 IN BOOLEAN BootPolicy,
1029 IN EFI_HANDLE ParentImageHandle,
1030 IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
1031 IN VOID *SourceBuffer OPTIONAL,
1032 IN UINTN SourceSize,
1033 IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
1034 IN OUT UINTN *NumberOfPages OPTIONAL,
1035 OUT EFI_HANDLE *ImageHandle,
1036 OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
1037 IN UINT32 Attribute
1038 )
1039 {
1040 LOADED_IMAGE_PRIVATE_DATA *Image;
1041 LOADED_IMAGE_PRIVATE_DATA *ParentImage;
1042 IMAGE_FILE_HANDLE FHand;
1043 EFI_STATUS Status;
1044 EFI_STATUS SecurityStatus;
1045 EFI_HANDLE DeviceHandle;
1046 UINT32 AuthenticationStatus;
1047 EFI_DEVICE_PATH_PROTOCOL *OriginalFilePath;
1048 EFI_DEVICE_PATH_PROTOCOL *HandleFilePath;
1049 UINTN FilePathSize;
1050 BOOLEAN ImageIsFromFv;
1051
1052 SecurityStatus = EFI_SUCCESS;
1053
1054 ASSERT (gEfiCurrentTpl < TPL_NOTIFY);
1055 ParentImage = NULL;
1056
1057 //
1058 // The caller must pass in a valid ParentImageHandle
1059 //
1060 if (ImageHandle == NULL || ParentImageHandle == NULL) {
1061 return EFI_INVALID_PARAMETER;
1062 }
1063
1064 ParentImage = CoreLoadedImageInfo (ParentImageHandle);
1065 if (ParentImage == NULL) {
1066 DEBUG((DEBUG_LOAD|DEBUG_ERROR, "LoadImageEx: Parent handle not an image handle\n"));
1067 return EFI_INVALID_PARAMETER;
1068 }
1069
1070 ZeroMem (&FHand, sizeof (IMAGE_FILE_HANDLE));
1071 FHand.Signature = IMAGE_FILE_HANDLE_SIGNATURE;
1072 OriginalFilePath = FilePath;
1073 HandleFilePath = FilePath;
1074 DeviceHandle = NULL;
1075 Status = EFI_SUCCESS;
1076 AuthenticationStatus = 0;
1077 ImageIsFromFv = FALSE;
1078
1079 //
1080 // If the caller passed a copy of the file, then just use it
1081 //
1082 if (SourceBuffer != NULL) {
1083 FHand.Source = SourceBuffer;
1084 FHand.SourceSize = SourceSize;
1085 Status = CoreLocateDevicePath (&gEfiDevicePathProtocolGuid, &HandleFilePath, &DeviceHandle);
1086 if (EFI_ERROR (Status)) {
1087 DeviceHandle = NULL;
1088 }
1089 if (SourceSize > 0) {
1090 Status = EFI_SUCCESS;
1091 } else {
1092 Status = EFI_LOAD_ERROR;
1093 }
1094 } else {
1095 if (FilePath == NULL) {
1096 return EFI_INVALID_PARAMETER;
1097 }
1098 //
1099 // Get the source file buffer by its device path.
1100 //
1101 FHand.Source = GetFileBufferByFilePath (
1102 BootPolicy,
1103 FilePath,
1104 &FHand.SourceSize,
1105 &AuthenticationStatus
1106 );
1107 if (FHand.Source == NULL) {
1108 Status = EFI_NOT_FOUND;
1109 } else {
1110 //
1111 // Try to get the image device handle by checking the match protocol.
1112 //
1113 FHand.FreeBuffer = TRUE;
1114 Status = CoreLocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &HandleFilePath, &DeviceHandle);
1115 if (!EFI_ERROR (Status)) {
1116 ImageIsFromFv = TRUE;
1117 } else {
1118 HandleFilePath = FilePath;
1119 Status = CoreLocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &HandleFilePath, &DeviceHandle);
1120 if (EFI_ERROR (Status)) {
1121 if (!BootPolicy) {
1122 HandleFilePath = FilePath;
1123 Status = CoreLocateDevicePath (&gEfiLoadFile2ProtocolGuid, &HandleFilePath, &DeviceHandle);
1124 }
1125 if (EFI_ERROR (Status)) {
1126 HandleFilePath = FilePath;
1127 Status = CoreLocateDevicePath (&gEfiLoadFileProtocolGuid, &HandleFilePath, &DeviceHandle);
1128 }
1129 }
1130 }
1131 }
1132 }
1133
1134 if (EFI_ERROR (Status)) {
1135 Image = NULL;
1136 goto Done;
1137 }
1138
1139 if (gSecurity2 != NULL) {
1140 //
1141 // Verify File Authentication through the Security2 Architectural Protocol
1142 //
1143 SecurityStatus = gSecurity2->FileAuthentication (
1144 gSecurity2,
1145 OriginalFilePath,
1146 FHand.Source,
1147 FHand.SourceSize,
1148 BootPolicy
1149 );
1150 if (!EFI_ERROR (SecurityStatus) && ImageIsFromFv) {
1151 //
1152 // When Security2 is installed, Security Architectural Protocol must be published.
1153 //
1154 ASSERT (gSecurity != NULL);
1155
1156 //
1157 // Verify the Authentication Status through the Security Architectural Protocol
1158 // Only on images that have been read using Firmware Volume protocol.
1159 //
1160 SecurityStatus = gSecurity->FileAuthenticationState (
1161 gSecurity,
1162 AuthenticationStatus,
1163 OriginalFilePath
1164 );
1165 }
1166 } else if ((gSecurity != NULL) && (OriginalFilePath != NULL)) {
1167 //
1168 // Verify the Authentication Status through the Security Architectural Protocol
1169 //
1170 SecurityStatus = gSecurity->FileAuthenticationState (
1171 gSecurity,
1172 AuthenticationStatus,
1173 OriginalFilePath
1174 );
1175 }
1176
1177 //
1178 // Check Security Status.
1179 //
1180 if (EFI_ERROR (SecurityStatus) && SecurityStatus != EFI_SECURITY_VIOLATION) {
1181 if (SecurityStatus == EFI_ACCESS_DENIED) {
1182 //
1183 // Image was not loaded because the platform policy prohibits the image from being loaded.
1184 // It's the only place we could meet EFI_ACCESS_DENIED.
1185 //
1186 *ImageHandle = NULL;
1187 }
1188 Status = SecurityStatus;
1189 Image = NULL;
1190 goto Done;
1191 }
1192
1193 //
1194 // Allocate a new image structure
1195 //
1196 Image = AllocateZeroPool (sizeof(LOADED_IMAGE_PRIVATE_DATA));
1197 if (Image == NULL) {
1198 Status = EFI_OUT_OF_RESOURCES;
1199 goto Done;
1200 }
1201
1202 //
1203 // Pull out just the file portion of the DevicePath for the LoadedImage FilePath
1204 //
1205 FilePath = OriginalFilePath;
1206 if (DeviceHandle != NULL) {
1207 Status = CoreHandleProtocol (DeviceHandle, &gEfiDevicePathProtocolGuid, (VOID **)&HandleFilePath);
1208 if (!EFI_ERROR (Status)) {
1209 FilePathSize = GetDevicePathSize (HandleFilePath) - sizeof(EFI_DEVICE_PATH_PROTOCOL);
1210 FilePath = (EFI_DEVICE_PATH_PROTOCOL *) (((UINT8 *)FilePath) + FilePathSize );
1211 }
1212 }
1213 //
1214 // Initialize the fields for an internal driver
1215 //
1216 Image->Signature = LOADED_IMAGE_PRIVATE_DATA_SIGNATURE;
1217 Image->Info.SystemTable = gDxeCoreST;
1218 Image->Info.DeviceHandle = DeviceHandle;
1219 Image->Info.Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;
1220 Image->Info.FilePath = DuplicateDevicePath (FilePath);
1221 Image->Info.ParentHandle = ParentImageHandle;
1222
1223
1224 if (NumberOfPages != NULL) {
1225 Image->NumberOfPages = *NumberOfPages ;
1226 } else {
1227 Image->NumberOfPages = 0 ;
1228 }
1229
1230 //
1231 // Install the protocol interfaces for this image
1232 // don't fire notifications yet
1233 //
1234 Status = CoreInstallProtocolInterfaceNotify (
1235 &Image->Handle,
1236 &gEfiLoadedImageProtocolGuid,
1237 EFI_NATIVE_INTERFACE,
1238 &Image->Info,
1239 FALSE
1240 );
1241 if (EFI_ERROR (Status)) {
1242 goto Done;
1243 }
1244
1245 //
1246 // Load the image. If EntryPoint is Null, it will not be set.
1247 //
1248 Status = CoreLoadPeImage (BootPolicy, &FHand, Image, DstBuffer, EntryPoint, Attribute);
1249 if (EFI_ERROR (Status)) {
1250 if ((Status == EFI_BUFFER_TOO_SMALL) || (Status == EFI_OUT_OF_RESOURCES)) {
1251 if (NumberOfPages != NULL) {
1252 *NumberOfPages = Image->NumberOfPages;
1253 }
1254 }
1255 goto Done;
1256 }
1257
1258 if (NumberOfPages != NULL) {
1259 *NumberOfPages = Image->NumberOfPages;
1260 }
1261
1262 //
1263 // Register the image in the Debug Image Info Table if the attribute is set
1264 //
1265 if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_DEBUG_IMAGE_INFO_TABLE_REGISTRATION) != 0) {
1266 CoreNewDebugImageInfoEntry (EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL, &Image->Info, Image->Handle);
1267 }
1268
1269 //
1270 //Reinstall loaded image protocol to fire any notifications
1271 //
1272 Status = CoreReinstallProtocolInterface (
1273 Image->Handle,
1274 &gEfiLoadedImageProtocolGuid,
1275 &Image->Info,
1276 &Image->Info
1277 );
1278 if (EFI_ERROR (Status)) {
1279 goto Done;
1280 }
1281
1282 //
1283 // If DevicePath parameter to the LoadImage() is not NULL, then make a copy of DevicePath,
1284 // otherwise Loaded Image Device Path Protocol is installed with a NULL interface pointer.
1285 //
1286 if (OriginalFilePath != NULL) {
1287 Image->LoadedImageDevicePath = DuplicateDevicePath (OriginalFilePath);
1288 }
1289
1290 //
1291 // Install Loaded Image Device Path Protocol onto the image handle of a PE/COFE image
1292 //
1293 Status = CoreInstallProtocolInterface (
1294 &Image->Handle,
1295 &gEfiLoadedImageDevicePathProtocolGuid,
1296 EFI_NATIVE_INTERFACE,
1297 Image->LoadedImageDevicePath
1298 );
1299 if (EFI_ERROR (Status)) {
1300 goto Done;
1301 }
1302
1303 //
1304 // Install HII Package List Protocol onto the image handle
1305 //
1306 if (Image->ImageContext.HiiResourceData != 0) {
1307 Status = CoreInstallProtocolInterface (
1308 &Image->Handle,
1309 &gEfiHiiPackageListProtocolGuid,
1310 EFI_NATIVE_INTERFACE,
1311 (VOID *) (UINTN) Image->ImageContext.HiiResourceData
1312 );
1313 if (EFI_ERROR (Status)) {
1314 goto Done;
1315 }
1316 }
1317
1318 //
1319 // Success. Return the image handle
1320 //
1321 *ImageHandle = Image->Handle;
1322
1323 Done:
1324 //
1325 // All done accessing the source file
1326 // If we allocated the Source buffer, free it
1327 //
1328 if (FHand.FreeBuffer) {
1329 CoreFreePool (FHand.Source);
1330 }
1331
1332 //
1333 // There was an error. If there's an Image structure, free it
1334 //
1335 if (EFI_ERROR (Status)) {
1336 if (Image != NULL) {
1337 CoreUnloadAndCloseImage (Image, (BOOLEAN)(DstBuffer == 0));
1338 Image = NULL;
1339 }
1340 } else if (EFI_ERROR (SecurityStatus)) {
1341 Status = SecurityStatus;
1342 }
1343
1344 //
1345 // Track the return status from LoadImage.
1346 //
1347 if (Image != NULL) {
1348 Image->LoadImageStatus = Status;
1349 }
1350
1351 return Status;
1352 }
1353
1354
1355
1356
1357 /**
1358 Loads an EFI image into memory and returns a handle to the image.
1359
1360 @param BootPolicy If TRUE, indicates that the request originates
1361 from the boot manager, and that the boot
1362 manager is attempting to load FilePath as a
1363 boot selection.
1364 @param ParentImageHandle The caller's image handle.
1365 @param FilePath The specific file path from which the image is
1366 loaded.
1367 @param SourceBuffer If not NULL, a pointer to the memory location
1368 containing a copy of the image to be loaded.
1369 @param SourceSize The size in bytes of SourceBuffer.
1370 @param ImageHandle Pointer to the returned image handle that is
1371 created when the image is successfully loaded.
1372
1373 @retval EFI_SUCCESS The image was loaded into memory.
1374 @retval EFI_NOT_FOUND The FilePath was not found.
1375 @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
1376 @retval EFI_UNSUPPORTED The image type is not supported, or the device
1377 path cannot be parsed to locate the proper
1378 protocol for loading the file.
1379 @retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient
1380 resources.
1381 @retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
1382 understood.
1383 @retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
1384 @retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
1385 image from being loaded. NULL is returned in *ImageHandle.
1386 @retval EFI_SECURITY_VIOLATION Image was loaded and an ImageHandle was created with a
1387 valid EFI_LOADED_IMAGE_PROTOCOL. However, the current
1388 platform policy specifies that the image should not be started.
1389
1390 **/
1391 EFI_STATUS
1392 EFIAPI
1393 CoreLoadImage (
1394 IN BOOLEAN BootPolicy,
1395 IN EFI_HANDLE ParentImageHandle,
1396 IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
1397 IN VOID *SourceBuffer OPTIONAL,
1398 IN UINTN SourceSize,
1399 OUT EFI_HANDLE *ImageHandle
1400 )
1401 {
1402 EFI_STATUS Status;
1403 UINT64 Tick;
1404 EFI_HANDLE Handle;
1405
1406 Tick = 0;
1407 PERF_CODE (
1408 Tick = GetPerformanceCounter ();
1409 );
1410
1411 Status = CoreLoadImageCommon (
1412 BootPolicy,
1413 ParentImageHandle,
1414 FilePath,
1415 SourceBuffer,
1416 SourceSize,
1417 (EFI_PHYSICAL_ADDRESS) (UINTN) NULL,
1418 NULL,
1419 ImageHandle,
1420 NULL,
1421 EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION | EFI_LOAD_PE_IMAGE_ATTRIBUTE_DEBUG_IMAGE_INFO_TABLE_REGISTRATION
1422 );
1423
1424 Handle = NULL;
1425 if (!EFI_ERROR (Status)) {
1426 //
1427 // ImageHandle will be valid only Status is success.
1428 //
1429 Handle = *ImageHandle;
1430 }
1431
1432 PERF_START (Handle, "LoadImage:", NULL, Tick);
1433 PERF_END (Handle, "LoadImage:", NULL, 0);
1434
1435 return Status;
1436 }
1437
1438
1439
1440 /**
1441 Loads an EFI image into memory and returns a handle to the image with extended parameters.
1442
1443 @param This Calling context
1444 @param ParentImageHandle The caller's image handle.
1445 @param FilePath The specific file path from which the image is
1446 loaded.
1447 @param SourceBuffer If not NULL, a pointer to the memory location
1448 containing a copy of the image to be loaded.
1449 @param SourceSize The size in bytes of SourceBuffer.
1450 @param DstBuffer The buffer to store the image.
1451 @param NumberOfPages For input, specifies the space size of the
1452 image by caller if not NULL. For output,
1453 specifies the actual space size needed.
1454 @param ImageHandle Image handle for output.
1455 @param EntryPoint Image entry point for output.
1456 @param Attribute The bit mask of attributes to set for the load
1457 PE image.
1458
1459 @retval EFI_SUCCESS The image was loaded into memory.
1460 @retval EFI_NOT_FOUND The FilePath was not found.
1461 @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
1462 @retval EFI_UNSUPPORTED The image type is not supported, or the device
1463 path cannot be parsed to locate the proper
1464 protocol for loading the file.
1465 @retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient
1466 resources.
1467 @retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
1468 understood.
1469 @retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
1470 @retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
1471 image from being loaded. NULL is returned in *ImageHandle.
1472 @retval EFI_SECURITY_VIOLATION Image was loaded and an ImageHandle was created with a
1473 valid EFI_LOADED_IMAGE_PROTOCOL. However, the current
1474 platform policy specifies that the image should not be started.
1475
1476 **/
1477 EFI_STATUS
1478 EFIAPI
1479 CoreLoadImageEx (
1480 IN EFI_PE32_IMAGE_PROTOCOL *This,
1481 IN EFI_HANDLE ParentImageHandle,
1482 IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
1483 IN VOID *SourceBuffer OPTIONAL,
1484 IN UINTN SourceSize,
1485 IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
1486 OUT UINTN *NumberOfPages OPTIONAL,
1487 OUT EFI_HANDLE *ImageHandle,
1488 OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
1489 IN UINT32 Attribute
1490 )
1491 {
1492 EFI_STATUS Status;
1493 UINT64 Tick;
1494 EFI_HANDLE Handle;
1495
1496 Tick = 0;
1497 PERF_CODE (
1498 Tick = GetPerformanceCounter ();
1499 );
1500
1501 Status = CoreLoadImageCommon (
1502 TRUE,
1503 ParentImageHandle,
1504 FilePath,
1505 SourceBuffer,
1506 SourceSize,
1507 DstBuffer,
1508 NumberOfPages,
1509 ImageHandle,
1510 EntryPoint,
1511 Attribute
1512 );
1513
1514 Handle = NULL;
1515 if (!EFI_ERROR (Status)) {
1516 //
1517 // ImageHandle will be valid only Status is success.
1518 //
1519 Handle = *ImageHandle;
1520 }
1521
1522 PERF_START (Handle, "LoadImage:", NULL, Tick);
1523 PERF_END (Handle, "LoadImage:", NULL, 0);
1524
1525 return Status;
1526 }
1527
1528
1529 /**
1530 Transfer control to a loaded image's entry point.
1531
1532 @param ImageHandle Handle of image to be started.
1533 @param ExitDataSize Pointer of the size to ExitData
1534 @param ExitData Pointer to a pointer to a data buffer that
1535 includes a Null-terminated string,
1536 optionally followed by additional binary data.
1537 The string is a description that the caller may
1538 use to further indicate the reason for the
1539 image's exit.
1540
1541 @retval EFI_INVALID_PARAMETER Invalid parameter
1542 @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate
1543 @retval EFI_SECURITY_VIOLATION The current platform policy specifies that the image should not be started.
1544 @retval EFI_SUCCESS Successfully transfer control to the image's
1545 entry point.
1546
1547 **/
1548 EFI_STATUS
1549 EFIAPI
1550 CoreStartImage (
1551 IN EFI_HANDLE ImageHandle,
1552 OUT UINTN *ExitDataSize,
1553 OUT CHAR16 **ExitData OPTIONAL
1554 )
1555 {
1556 EFI_STATUS Status;
1557 LOADED_IMAGE_PRIVATE_DATA *Image;
1558 LOADED_IMAGE_PRIVATE_DATA *LastImage;
1559 UINT64 HandleDatabaseKey;
1560 UINTN SetJumpFlag;
1561 UINT64 Tick;
1562 EFI_HANDLE Handle;
1563
1564 Tick = 0;
1565 Handle = ImageHandle;
1566
1567 Image = CoreLoadedImageInfo (ImageHandle);
1568 if (Image == NULL || Image->Started) {
1569 return EFI_INVALID_PARAMETER;
1570 }
1571 if (EFI_ERROR (Image->LoadImageStatus)) {
1572 return Image->LoadImageStatus;
1573 }
1574
1575 //
1576 // The image to be started must have the machine type supported by DxeCore.
1577 //
1578 if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->Machine)) {
1579 //
1580 // Do not ASSERT here, because image might be loaded via EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
1581 // But it can not be started.
1582 //
1583 DEBUG ((EFI_D_ERROR, "Image type %s can't be started ", GetMachineTypeName(Image->Machine)));
1584 DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n", GetMachineTypeName(mDxeCoreImageMachineType)));
1585 return EFI_UNSUPPORTED;
1586 }
1587
1588 PERF_CODE (
1589 Tick = GetPerformanceCounter ();
1590 );
1591
1592
1593 //
1594 // Push the current start image context, and
1595 // link the current image to the head. This is the
1596 // only image that can call Exit()
1597 //
1598 HandleDatabaseKey = CoreGetHandleDatabaseKey ();
1599 LastImage = mCurrentImage;
1600 mCurrentImage = Image;
1601 Image->Tpl = gEfiCurrentTpl;
1602
1603 //
1604 // Set long jump for Exit() support
1605 // JumpContext must be aligned on a CPU specific boundary.
1606 // Overallocate the buffer and force the required alignment
1607 //
1608 Image->JumpBuffer = AllocatePool (sizeof (BASE_LIBRARY_JUMP_BUFFER) + BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT);
1609 if (Image->JumpBuffer == NULL) {
1610 //
1611 // Image may be unloaded after return with failure,
1612 // then ImageHandle may be invalid, so use NULL handle to record perf log.
1613 //
1614 PERF_START (NULL, "StartImage:", NULL, Tick);
1615 PERF_END (NULL, "StartImage:", NULL, 0);
1616 return EFI_OUT_OF_RESOURCES;
1617 }
1618 Image->JumpContext = ALIGN_POINTER (Image->JumpBuffer, BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT);
1619
1620 SetJumpFlag = SetJump (Image->JumpContext);
1621 //
1622 // The initial call to SetJump() must always return 0.
1623 // Subsequent calls to LongJump() cause a non-zero value to be returned by SetJump().
1624 //
1625 if (SetJumpFlag == 0) {
1626 //
1627 // Call the image's entry point
1628 //
1629 Image->Started = TRUE;
1630 Image->Status = Image->EntryPoint (ImageHandle, Image->Info.SystemTable);
1631
1632 //
1633 // Add some debug information if the image returned with error.
1634 // This make the user aware and check if the driver image have already released
1635 // all the resource in this situation.
1636 //
1637 DEBUG_CODE_BEGIN ();
1638 if (EFI_ERROR (Image->Status)) {
1639 DEBUG ((DEBUG_ERROR, "Error: Image at %11p start failed: %r\n", Image->Info.ImageBase, Image->Status));
1640 }
1641 DEBUG_CODE_END ();
1642
1643 //
1644 // If the image returns, exit it through Exit()
1645 //
1646 CoreExit (ImageHandle, Image->Status, 0, NULL);
1647 }
1648
1649 //
1650 // Image has completed. Verify the tpl is the same
1651 //
1652 ASSERT (Image->Tpl == gEfiCurrentTpl);
1653 CoreRestoreTpl (Image->Tpl);
1654
1655 CoreFreePool (Image->JumpBuffer);
1656
1657 //
1658 // Pop the current start image context
1659 //
1660 mCurrentImage = LastImage;
1661
1662 //
1663 // Go connect any handles that were created or modified while the image executed.
1664 //
1665 CoreConnectHandlesByKey (HandleDatabaseKey);
1666
1667 //
1668 // Handle the image's returned ExitData
1669 //
1670 DEBUG_CODE_BEGIN ();
1671 if (Image->ExitDataSize != 0 || Image->ExitData != NULL) {
1672
1673 DEBUG ((DEBUG_LOAD, "StartImage: ExitDataSize %d, ExitData %p", (UINT32)Image->ExitDataSize, Image->ExitData));
1674 if (Image->ExitData != NULL) {
1675 DEBUG ((DEBUG_LOAD, " (%hs)", Image->ExitData));
1676 }
1677 DEBUG ((DEBUG_LOAD, "\n"));
1678 }
1679 DEBUG_CODE_END ();
1680
1681 //
1682 // Return the exit data to the caller
1683 //
1684 if (ExitData != NULL && ExitDataSize != NULL) {
1685 *ExitDataSize = Image->ExitDataSize;
1686 *ExitData = Image->ExitData;
1687 } else {
1688 //
1689 // Caller doesn't want the exit data, free it
1690 //
1691 CoreFreePool (Image->ExitData);
1692 Image->ExitData = NULL;
1693 }
1694
1695 //
1696 // Save the Status because Image will get destroyed if it is unloaded.
1697 //
1698 Status = Image->Status;
1699
1700 //
1701 // If the image returned an error, or if the image is an application
1702 // unload it
1703 //
1704 if (EFI_ERROR (Image->Status) || Image->Type == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {
1705 CoreUnloadAndCloseImage (Image, TRUE);
1706 //
1707 // ImageHandle may be invalid after the image is unloaded, so use NULL handle to record perf log.
1708 //
1709 Handle = NULL;
1710 }
1711
1712 //
1713 // Done
1714 //
1715 PERF_START (Handle, "StartImage:", NULL, Tick);
1716 PERF_END (Handle, "StartImage:", NULL, 0);
1717 return Status;
1718 }
1719
1720 /**
1721 Terminates the currently loaded EFI image and returns control to boot services.
1722
1723 @param ImageHandle Handle that identifies the image. This
1724 parameter is passed to the image on entry.
1725 @param Status The image's exit code.
1726 @param ExitDataSize The size, in bytes, of ExitData. Ignored if
1727 ExitStatus is EFI_SUCCESS.
1728 @param ExitData Pointer to a data buffer that includes a
1729 Null-terminated Unicode string, optionally
1730 followed by additional binary data. The string
1731 is a description that the caller may use to
1732 further indicate the reason for the image's
1733 exit.
1734
1735 @retval EFI_INVALID_PARAMETER Image handle is NULL or it is not current
1736 image.
1737 @retval EFI_SUCCESS Successfully terminates the currently loaded
1738 EFI image.
1739 @retval EFI_ACCESS_DENIED Should never reach there.
1740 @retval EFI_OUT_OF_RESOURCES Could not allocate pool
1741
1742 **/
1743 EFI_STATUS
1744 EFIAPI
1745 CoreExit (
1746 IN EFI_HANDLE ImageHandle,
1747 IN EFI_STATUS Status,
1748 IN UINTN ExitDataSize,
1749 IN CHAR16 *ExitData OPTIONAL
1750 )
1751 {
1752 LOADED_IMAGE_PRIVATE_DATA *Image;
1753 EFI_TPL OldTpl;
1754
1755 //
1756 // Prevent possible reentrance to this function
1757 // for the same ImageHandle
1758 //
1759 OldTpl = CoreRaiseTpl (TPL_NOTIFY);
1760
1761 Image = CoreLoadedImageInfo (ImageHandle);
1762 if (Image == NULL) {
1763 Status = EFI_INVALID_PARAMETER;
1764 goto Done;
1765 }
1766
1767 if (!Image->Started) {
1768 //
1769 // The image has not been started so just free its resources
1770 //
1771 CoreUnloadAndCloseImage (Image, TRUE);
1772 Status = EFI_SUCCESS;
1773 goto Done;
1774 }
1775
1776 //
1777 // Image has been started, verify this image can exit
1778 //
1779 if (Image != mCurrentImage) {
1780 DEBUG ((DEBUG_LOAD|DEBUG_ERROR, "Exit: Image is not exitable image\n"));
1781 Status = EFI_INVALID_PARAMETER;
1782 goto Done;
1783 }
1784
1785 //
1786 // Set status
1787 //
1788 Image->Status = Status;
1789
1790 //
1791 // If there's ExitData info, move it
1792 //
1793 if (ExitData != NULL) {
1794 Image->ExitDataSize = ExitDataSize;
1795 Image->ExitData = AllocatePool (Image->ExitDataSize);
1796 if (Image->ExitData == NULL) {
1797 Status = EFI_OUT_OF_RESOURCES;
1798 goto Done;
1799 }
1800 CopyMem (Image->ExitData, ExitData, Image->ExitDataSize);
1801 }
1802
1803 CoreRestoreTpl (OldTpl);
1804 //
1805 // return to StartImage
1806 //
1807 LongJump (Image->JumpContext, (UINTN)-1);
1808
1809 //
1810 // If we return from LongJump, then it is an error
1811 //
1812 ASSERT (FALSE);
1813 Status = EFI_ACCESS_DENIED;
1814 Done:
1815 CoreRestoreTpl (OldTpl);
1816 return Status;
1817 }
1818
1819
1820
1821
1822 /**
1823 Unloads an image.
1824
1825 @param ImageHandle Handle that identifies the image to be
1826 unloaded.
1827
1828 @retval EFI_SUCCESS The image has been unloaded.
1829 @retval EFI_UNSUPPORTED The image has been sarted, and does not support
1830 unload.
1831 @retval EFI_INVALID_PARAMPETER ImageHandle is not a valid image handle.
1832
1833 **/
1834 EFI_STATUS
1835 EFIAPI
1836 CoreUnloadImage (
1837 IN EFI_HANDLE ImageHandle
1838 )
1839 {
1840 EFI_STATUS Status;
1841 LOADED_IMAGE_PRIVATE_DATA *Image;
1842
1843 Image = CoreLoadedImageInfo (ImageHandle);
1844 if (Image == NULL ) {
1845 //
1846 // The image handle is not valid
1847 //
1848 Status = EFI_INVALID_PARAMETER;
1849 goto Done;
1850 }
1851
1852 if (Image->Started) {
1853 //
1854 // The image has been started, request it to unload.
1855 //
1856 Status = EFI_UNSUPPORTED;
1857 if (Image->Info.Unload != NULL) {
1858 Status = Image->Info.Unload (ImageHandle);
1859 }
1860
1861 } else {
1862 //
1863 // This Image hasn't been started, thus it can be unloaded
1864 //
1865 Status = EFI_SUCCESS;
1866 }
1867
1868
1869 if (!EFI_ERROR (Status)) {
1870 //
1871 // if the Image was not started or Unloaded O.K. then clean up
1872 //
1873 CoreUnloadAndCloseImage (Image, TRUE);
1874 }
1875
1876 Done:
1877 return Status;
1878 }
1879
1880
1881
1882 /**
1883 Unload the specified image.
1884
1885 @param This Indicates the calling context.
1886 @param ImageHandle The specified image handle.
1887
1888 @retval EFI_INVALID_PARAMETER Image handle is NULL.
1889 @retval EFI_UNSUPPORTED Attempt to unload an unsupported image.
1890 @retval EFI_SUCCESS Image successfully unloaded.
1891
1892 **/
1893 EFI_STATUS
1894 EFIAPI
1895 CoreUnloadImageEx (
1896 IN EFI_PE32_IMAGE_PROTOCOL *This,
1897 IN EFI_HANDLE ImageHandle
1898 )
1899 {
1900 return CoreUnloadImage (ImageHandle);
1901 }
EFI Development Kit II mirror for PVE