diff options
Diffstat (limited to 'roms/edk2/MdeModulePkg/Core/Dxe/Image')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.c | 1909 | ||||
| -rw-r--r-- | roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.h | 24 |
2 files changed, 1933 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.c b/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.c new file mode 100644 index 000000000..d86da89ee --- /dev/null +++ b/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.c @@ -0,0 +1,1909 @@ +/** @file
+ Core image handling services to load and unload PeImage.
+
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "DxeMain.h"
+#include "Image.h"
+
+//
+// Module Globals
+//
+LOADED_IMAGE_PRIVATE_DATA *mCurrentImage = NULL;
+
+typedef struct {
+ LIST_ENTRY Link;
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *Emulator;
+ UINT16 MachineType;
+} EMULATOR_ENTRY;
+
+STATIC LIST_ENTRY mAvailableEmulators;
+STATIC EFI_EVENT mPeCoffEmuProtocolRegistrationEvent;
+STATIC VOID *mPeCoffEmuProtocolNotifyRegistration;
+
+//
+// This code is needed to build the Image handle for the DXE Core
+//
+LOADED_IMAGE_PRIVATE_DATA mCorePrivateImage = {
+ LOADED_IMAGE_PRIVATE_DATA_SIGNATURE, // Signature
+ NULL, // Image handle
+ EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER, // Image type
+ TRUE, // If entrypoint has been called
+ NULL, // EntryPoint
+ {
+ EFI_LOADED_IMAGE_INFORMATION_REVISION, // Revision
+ NULL, // Parent handle
+ NULL, // System handle
+
+ NULL, // Device handle
+ NULL, // File path
+ NULL, // Reserved
+
+ 0, // LoadOptionsSize
+ NULL, // LoadOptions
+
+ NULL, // ImageBase
+ 0, // ImageSize
+ EfiBootServicesCode, // ImageCodeType
+ EfiBootServicesData // ImageDataType
+ },
+ (EFI_PHYSICAL_ADDRESS)0, // ImageBasePage
+ 0, // NumberOfPages
+ NULL, // FixupData
+ 0, // Tpl
+ EFI_SUCCESS, // Status
+ 0, // ExitDataSize
+ NULL, // ExitData
+ NULL, // JumpBuffer
+ NULL, // JumpContext
+ 0, // Machine
+ NULL, // PeCoffEmu
+ NULL, // RuntimeData
+ NULL // LoadedImageDevicePath
+};
+//
+// The field is define for Loading modules at fixed address feature to tracker the PEI code
+// memory range usage. It is a bit mapped array in which every bit indicates the correspoding memory page
+// available or not.
+//
+GLOBAL_REMOVE_IF_UNREFERENCED UINT64 *mDxeCodeMemoryRangeUsageBitMap=NULL;
+
+typedef struct {
+ UINT16 MachineType;
+ CHAR16 *MachineTypeName;
+} MACHINE_TYPE_INFO;
+
+GLOBAL_REMOVE_IF_UNREFERENCED MACHINE_TYPE_INFO mMachineTypeInfo[] = {
+ {EFI_IMAGE_MACHINE_IA32, L"IA32"},
+ {EFI_IMAGE_MACHINE_IA64, L"IA64"},
+ {EFI_IMAGE_MACHINE_X64, L"X64"},
+ {EFI_IMAGE_MACHINE_ARMTHUMB_MIXED, L"ARM"},
+ {EFI_IMAGE_MACHINE_AARCH64, L"AARCH64"}
+};
+
+UINT16 mDxeCoreImageMachineType = 0;
+
+/**
+ Return machine type name.
+
+ @param MachineType The machine type
+
+ @return machine type name
+**/
+CHAR16 *
+GetMachineTypeName (
+ UINT16 MachineType
+ )
+{
+ UINTN Index;
+
+ for (Index = 0; Index < sizeof(mMachineTypeInfo)/sizeof(mMachineTypeInfo[0]); Index++) {
+ if (mMachineTypeInfo[Index].MachineType == MachineType) {
+ return mMachineTypeInfo[Index].MachineTypeName;
+ }
+ }
+
+ return L"<Unknown>";
+}
+
+/**
+ Notification event handler registered by CoreInitializeImageServices () to
+ keep track of which PE/COFF image emulators are available.
+
+ @param Event The Event that is being processed, not used.
+ @param Context Event Context, not used.
+
+**/
+STATIC
+VOID
+EFIAPI
+PeCoffEmuProtocolNotify (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_HANDLE EmuHandle;
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *Emulator;
+ EMULATOR_ENTRY *Entry;
+
+ EmuHandle = NULL;
+ Emulator = NULL;
+
+ while (TRUE) {
+ BufferSize = sizeof (EmuHandle);
+ Status = CoreLocateHandle (
+ ByRegisterNotify,
+ NULL,
+ mPeCoffEmuProtocolNotifyRegistration,
+ &BufferSize,
+ &EmuHandle
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // If no more notification events exit
+ //
+ return;
+ }
+
+ Status = CoreHandleProtocol (
+ EmuHandle,
+ &gEdkiiPeCoffImageEmulatorProtocolGuid,
+ (VOID **)&Emulator
+ );
+ if (EFI_ERROR (Status) || Emulator == NULL) {
+ continue;
+ }
+
+ Entry = AllocateZeroPool (sizeof (*Entry));
+ ASSERT (Entry != NULL);
+
+ Entry->Emulator = Emulator;
+ Entry->MachineType = Entry->Emulator->MachineType;
+
+ InsertTailList (&mAvailableEmulators, &Entry->Link);
+ }
+}
+
+/**
+ Add the Image Services to EFI Boot Services Table and install the protocol
+ interfaces for this image.
+
+ @param HobStart The HOB to initialize
+
+ @return Status code.
+
+**/
+EFI_STATUS
+CoreInitializeImageServices (
+ IN VOID *HobStart
+ )
+{
+ EFI_STATUS Status;
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+ EFI_PHYSICAL_ADDRESS DxeCoreImageBaseAddress;
+ UINT64 DxeCoreImageLength;
+ VOID *DxeCoreEntryPoint;
+ EFI_PEI_HOB_POINTERS DxeCoreHob;
+
+ //
+ // Searching for image hob
+ //
+ DxeCoreHob.Raw = HobStart;
+ while ((DxeCoreHob.Raw = GetNextHob (EFI_HOB_TYPE_MEMORY_ALLOCATION, DxeCoreHob.Raw)) != NULL) {
+ if (CompareGuid (&DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.Name, &gEfiHobMemoryAllocModuleGuid)) {
+ //
+ // Find Dxe Core HOB
+ //
+ break;
+ }
+ DxeCoreHob.Raw = GET_NEXT_HOB (DxeCoreHob);
+ }
+ ASSERT (DxeCoreHob.Raw != NULL);
+
+ DxeCoreImageBaseAddress = DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.MemoryBaseAddress;
+ DxeCoreImageLength = DxeCoreHob.MemoryAllocationModule->MemoryAllocationHeader.MemoryLength;
+ DxeCoreEntryPoint = (VOID *) (UINTN) DxeCoreHob.MemoryAllocationModule->EntryPoint;
+ gDxeCoreFileName = &DxeCoreHob.MemoryAllocationModule->ModuleName;
+
+ //
+ // Initialize the fields for an internal driver
+ //
+ Image = &mCorePrivateImage;
+
+ Image->EntryPoint = (EFI_IMAGE_ENTRY_POINT)(UINTN)DxeCoreEntryPoint;
+ Image->ImageBasePage = DxeCoreImageBaseAddress;
+ Image->NumberOfPages = (UINTN)(EFI_SIZE_TO_PAGES((UINTN)(DxeCoreImageLength)));
+ Image->Tpl = gEfiCurrentTpl;
+ Image->Info.SystemTable = gDxeCoreST;
+ Image->Info.ImageBase = (VOID *)(UINTN)DxeCoreImageBaseAddress;
+ Image->Info.ImageSize = DxeCoreImageLength;
+
+ //
+ // Install the protocol interfaces for this image
+ //
+ Status = CoreInstallProtocolInterface (
+ &Image->Handle,
+ &gEfiLoadedImageProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &Image->Info
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ mCurrentImage = Image;
+
+ //
+ // Fill in DXE globals
+ //
+ mDxeCoreImageMachineType = PeCoffLoaderGetMachineType (Image->Info.ImageBase);
+ gDxeCoreImageHandle = Image->Handle;
+ gDxeCoreLoadedImage = &Image->Info;
+
+ //
+ // Create the PE/COFF emulator protocol registration event
+ //
+ Status = CoreCreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ PeCoffEmuProtocolNotify,
+ NULL,
+ &mPeCoffEmuProtocolRegistrationEvent
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // Register for protocol notifications on this event
+ //
+ Status = CoreRegisterProtocolNotify (
+ &gEdkiiPeCoffImageEmulatorProtocolGuid,
+ mPeCoffEmuProtocolRegistrationEvent,
+ &mPeCoffEmuProtocolNotifyRegistration
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ InitializeListHead (&mAvailableEmulators);
+
+ ProtectUefiImage (&Image->Info, Image->LoadedImageDevicePath);
+
+ return Status;
+}
+
+/**
+ Read image file (specified by UserHandle) into user specified buffer with specified offset
+ and length.
+
+ @param UserHandle Image file handle
+ @param Offset Offset to the source file
+ @param ReadSize For input, pointer of size to read; For output,
+ pointer of size actually read.
+ @param Buffer Buffer to write into
+
+ @retval EFI_SUCCESS Successfully read the specified part of file
+ into buffer.
+
+**/
+EFI_STATUS
+EFIAPI
+CoreReadImageFile (
+ IN VOID *UserHandle,
+ IN UINTN Offset,
+ IN OUT UINTN *ReadSize,
+ OUT VOID *Buffer
+ )
+{
+ UINTN EndPosition;
+ IMAGE_FILE_HANDLE *FHand;
+
+ if (UserHandle == NULL || ReadSize == NULL || Buffer == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (MAX_ADDRESS - Offset < *ReadSize) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ FHand = (IMAGE_FILE_HANDLE *)UserHandle;
+ ASSERT (FHand->Signature == IMAGE_FILE_HANDLE_SIGNATURE);
+
+ //
+ // Move data from our local copy of the file
+ //
+ EndPosition = Offset + *ReadSize;
+ if (EndPosition > FHand->SourceSize) {
+ *ReadSize = (UINT32)(FHand->SourceSize - Offset);
+ }
+ if (Offset >= FHand->SourceSize) {
+ *ReadSize = 0;
+ }
+
+ CopyMem (Buffer, (CHAR8 *)FHand->Source + Offset, *ReadSize);
+ return EFI_SUCCESS;
+}
+/**
+ 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
+ memory range is available, the function will mark the corresponding bits to 1 which indicates the memory range is used.
+ The function is only invoked when load modules at fixed address feature is enabled.
+
+ @param ImageBase The base address the image will be loaded at.
+ @param ImageSize The size of the image
+
+ @retval EFI_SUCCESS The memory range the image will be loaded in is available
+ @retval EFI_NOT_FOUND The memory range the image will be loaded in is not available
+**/
+EFI_STATUS
+CheckAndMarkFixLoadingMemoryUsageBitMap (
+ IN EFI_PHYSICAL_ADDRESS ImageBase,
+ IN UINTN ImageSize
+ )
+{
+ UINT32 DxeCodePageNumber;
+ UINT64 DxeCodeSize;
+ EFI_PHYSICAL_ADDRESS DxeCodeBase;
+ UINTN BaseOffsetPageNumber;
+ UINTN TopOffsetPageNumber;
+ UINTN Index;
+ //
+ // The DXE code range includes RuntimeCodePage range and Boot time code range.
+ //
+ DxeCodePageNumber = PcdGet32(PcdLoadFixAddressRuntimeCodePageNumber);
+ DxeCodePageNumber += PcdGet32(PcdLoadFixAddressBootTimeCodePageNumber);
+ DxeCodeSize = EFI_PAGES_TO_SIZE(DxeCodePageNumber);
+ DxeCodeBase = gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress - DxeCodeSize;
+
+ //
+ // If the memory usage bit map is not initialized, do it. Every bit in the array
+ // indicate the status of the corresponding memory page, available or not
+ //
+ if (mDxeCodeMemoryRangeUsageBitMap == NULL) {
+ mDxeCodeMemoryRangeUsageBitMap = AllocateZeroPool(((DxeCodePageNumber/64) + 1)*sizeof(UINT64));
+ }
+ //
+ // If the Dxe code memory range is not allocated or the bit map array allocation failed, return EFI_NOT_FOUND
+ //
+ if (!gLoadFixedAddressCodeMemoryReady || mDxeCodeMemoryRangeUsageBitMap == NULL) {
+ return EFI_NOT_FOUND;
+ }
+ //
+ // Test the memory range for loading the image in the DXE code range.
+ //
+ if (gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress < ImageBase + ImageSize ||
+ DxeCodeBase > ImageBase) {
+ return EFI_NOT_FOUND;
+ }
+ //
+ // Test if the memory is avalaible or not.
+ //
+ BaseOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase - DxeCodeBase));
+ TopOffsetPageNumber = EFI_SIZE_TO_PAGES((UINT32)(ImageBase + ImageSize - DxeCodeBase));
+ for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {
+ if ((mDxeCodeMemoryRangeUsageBitMap[Index / 64] & LShiftU64(1, (Index % 64))) != 0) {
+ //
+ // This page is already used.
+ //
+ return EFI_NOT_FOUND;
+ }
+ }
+
+ //
+ // Being here means the memory range is available. So mark the bits for the memory range
+ //
+ for (Index = BaseOffsetPageNumber; Index < TopOffsetPageNumber; Index ++) {
+ mDxeCodeMemoryRangeUsageBitMap[Index / 64] |= LShiftU64(1, (Index % 64));
+ }
+ return EFI_SUCCESS;
+}
+/**
+
+ Get the fixed loading address from image header assigned by build tool. This function only be called
+ when Loading module at Fixed address feature enabled.
+
+ @param ImageContext Pointer to the image context structure that describes the PE/COFF
+ image that needs to be examined by this function.
+ @retval EFI_SUCCESS An fixed loading address is assigned to this image by build tools .
+ @retval EFI_NOT_FOUND The image has no assigned fixed loading address.
+
+**/
+EFI_STATUS
+GetPeCoffImageFixLoadingAssignedAddress(
+ IN OUT PE_COFF_LOADER_IMAGE_CONTEXT *ImageContext
+ )
+{
+ UINTN SectionHeaderOffset;
+ EFI_STATUS Status;
+ EFI_IMAGE_SECTION_HEADER SectionHeader;
+ EFI_IMAGE_OPTIONAL_HEADER_UNION *ImgHdr;
+ UINT16 Index;
+ UINTN Size;
+ UINT16 NumberOfSections;
+ IMAGE_FILE_HANDLE *Handle;
+ UINT64 ValueInSectionHeader;
+
+
+ Status = EFI_NOT_FOUND;
+
+ //
+ // Get PeHeader pointer
+ //
+ Handle = (IMAGE_FILE_HANDLE*)ImageContext->Handle;
+ ImgHdr = (EFI_IMAGE_OPTIONAL_HEADER_UNION *)((CHAR8* )Handle->Source + ImageContext->PeCoffHeaderOffset);
+ SectionHeaderOffset = ImageContext->PeCoffHeaderOffset +
+ sizeof (UINT32) +
+ sizeof (EFI_IMAGE_FILE_HEADER) +
+ ImgHdr->Pe32.FileHeader.SizeOfOptionalHeader;
+ NumberOfSections = ImgHdr->Pe32.FileHeader.NumberOfSections;
+
+ //
+ // Get base address from the first section header that doesn't point to code section.
+ //
+ for (Index = 0; Index < NumberOfSections; Index++) {
+ //
+ // Read section header from file
+ //
+ Size = sizeof (EFI_IMAGE_SECTION_HEADER);
+ Status = ImageContext->ImageRead (
+ ImageContext->Handle,
+ SectionHeaderOffset,
+ &Size,
+ &SectionHeader
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ if (Size != sizeof (EFI_IMAGE_SECTION_HEADER)) {
+ return EFI_NOT_FOUND;
+ }
+
+ Status = EFI_NOT_FOUND;
+
+ if ((SectionHeader.Characteristics & EFI_IMAGE_SCN_CNT_CODE) == 0) {
+ //
+ // Build tool will save the address in PointerToRelocations & PointerToLineNumbers fields in the first section header
+ // that doesn't point to code section in image header, as well as ImageBase field of image header. And there is an
+ // assumption that when the feature is enabled, if a module is assigned a loading address by tools, PointerToRelocations
+ // & PointerToLineNumbers fields should NOT be Zero, or else, these 2 fields should be set to Zero
+ //
+ ValueInSectionHeader = ReadUnaligned64((UINT64*)&SectionHeader.PointerToRelocations);
+ if (ValueInSectionHeader != 0) {
+ //
+ // When the feature is configured as load module at fixed absolute address, the ImageAddress field of ImageContext
+ // hold the spcified address. If the feature is configured as load module at fixed offset, ImageAddress hold an offset
+ // relative to top address
+ //
+ if ((INT64)PcdGet64(PcdLoadModuleAtFixAddressEnable) < 0) {
+ ImageContext->ImageAddress = gLoadModuleAtFixAddressConfigurationTable.DxeCodeTopAddress + (INT64)(INTN)ImageContext->ImageAddress;
+ }
+ //
+ // Check if the memory range is available.
+ //
+ Status = CheckAndMarkFixLoadingMemoryUsageBitMap (ImageContext->ImageAddress, (UINTN)(ImageContext->ImageSize + ImageContext->SectionAlignment));
+ }
+ break;
+ }
+ SectionHeaderOffset += sizeof (EFI_IMAGE_SECTION_HEADER);
+ }
+ 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));
+ return Status;
+}
+
+/**
+ Decides whether a PE/COFF image can execute on this system, either natively
+ or via emulation/interpretation. In the latter case, the PeCoffEmu member
+ of the LOADED_IMAGE_PRIVATE_DATA struct pointer is populated with a pointer
+ to the emulator protocol that supports this image.
+
+ @param[in, out] Image LOADED_IMAGE_PRIVATE_DATA struct pointer
+
+ @retval TRUE The image is supported
+ @retval FALSE The image is not supported
+
+**/
+STATIC
+BOOLEAN
+CoreIsImageTypeSupported (
+ IN OUT LOADED_IMAGE_PRIVATE_DATA *Image
+ )
+{
+ LIST_ENTRY *Link;
+ EMULATOR_ENTRY *Entry;
+
+ for (Link = GetFirstNode (&mAvailableEmulators);
+ !IsNull (&mAvailableEmulators, Link);
+ Link = GetNextNode (&mAvailableEmulators, Link)) {
+
+ Entry = BASE_CR (Link, EMULATOR_ENTRY, Link);
+ if (Entry->MachineType != Image->ImageContext.Machine) {
+ continue;
+ }
+
+ if (Entry->Emulator->IsImageSupported (Entry->Emulator,
+ Image->ImageContext.ImageType,
+ Image->Info.FilePath)) {
+ Image->PeCoffEmu = Entry->Emulator;
+ return TRUE;
+ }
+ }
+
+ return EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->ImageContext.Machine) ||
+ EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Image->ImageContext.Machine);
+}
+
+/**
+ Loads, relocates, and invokes a PE/COFF image
+
+ @param BootPolicy If TRUE, indicates that the request originates
+ from the boot manager, and that the boot
+ manager is attempting to load FilePath as a
+ boot selection.
+ @param Pe32Handle The handle of PE32 image
+ @param Image PE image to be loaded
+ @param DstBuffer The buffer to store the image
+ @param EntryPoint A pointer to the entry point
+ @param Attribute The bit mask of attributes to set for the load
+ PE image
+
+ @retval EFI_SUCCESS The file was loaded, relocated, and invoked
+ @retval EFI_OUT_OF_RESOURCES There was not enough memory to load and
+ relocate the PE/COFF file
+ @retval EFI_INVALID_PARAMETER Invalid parameter
+ @retval EFI_BUFFER_TOO_SMALL Buffer for image is too small
+
+**/
+EFI_STATUS
+CoreLoadPeImage (
+ IN BOOLEAN BootPolicy,
+ IN VOID *Pe32Handle,
+ IN LOADED_IMAGE_PRIVATE_DATA *Image,
+ IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
+ OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
+ IN UINT32 Attribute
+ )
+{
+ EFI_STATUS Status;
+ BOOLEAN DstBufAlocated;
+ UINTN Size;
+
+ ZeroMem (&Image->ImageContext, sizeof (Image->ImageContext));
+
+ Image->ImageContext.Handle = Pe32Handle;
+ Image->ImageContext.ImageRead = (PE_COFF_LOADER_READ_FILE)CoreReadImageFile;
+
+ //
+ // Get information about the image being loaded
+ //
+ Status = PeCoffLoaderGetImageInfo (&Image->ImageContext);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (!CoreIsImageTypeSupported (Image)) {
+ //
+ // The PE/COFF loader can support loading image types that can be executed.
+ // If we loaded an image type that we can not execute return EFI_UNSUPPORTED.
+ //
+ DEBUG ((DEBUG_ERROR, "Image type %s can't be loaded on %s UEFI system.\n",
+ GetMachineTypeName (Image->ImageContext.Machine),
+ GetMachineTypeName (mDxeCoreImageMachineType)));
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Set EFI memory type based on ImageType
+ //
+ switch (Image->ImageContext.ImageType) {
+ case EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION:
+ Image->ImageContext.ImageCodeMemoryType = EfiLoaderCode;
+ Image->ImageContext.ImageDataMemoryType = EfiLoaderData;
+ break;
+ case EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER:
+ Image->ImageContext.ImageCodeMemoryType = EfiBootServicesCode;
+ Image->ImageContext.ImageDataMemoryType = EfiBootServicesData;
+ break;
+ case EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER:
+ case EFI_IMAGE_SUBSYSTEM_SAL_RUNTIME_DRIVER:
+ Image->ImageContext.ImageCodeMemoryType = EfiRuntimeServicesCode;
+ Image->ImageContext.ImageDataMemoryType = EfiRuntimeServicesData;
+ break;
+ default:
+ Image->ImageContext.ImageError = IMAGE_ERROR_INVALID_SUBSYSTEM;
+ return EFI_UNSUPPORTED;
+ }
+
+ //
+ // Allocate memory of the correct memory type aligned on the required image boundary
+ //
+ DstBufAlocated = FALSE;
+ if (DstBuffer == 0) {
+ //
+ // Allocate Destination Buffer as caller did not pass it in
+ //
+
+ if (Image->ImageContext.SectionAlignment > EFI_PAGE_SIZE) {
+ Size = (UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment;
+ } else {
+ Size = (UINTN)Image->ImageContext.ImageSize;
+ }
+
+ Image->NumberOfPages = EFI_SIZE_TO_PAGES (Size);
+
+ //
+ // If the image relocations have not been stripped, then load at any address.
+ // Otherwise load at the address at which it was linked.
+ //
+ // Memory below 1MB should be treated reserved for CSM and there should be
+ // no modules whose preferred load addresses are below 1MB.
+ //
+ Status = EFI_OUT_OF_RESOURCES;
+ //
+ // If Loading Module At Fixed Address feature is enabled, the module should be loaded to
+ // a specified address.
+ //
+ if (PcdGet64(PcdLoadModuleAtFixAddressEnable) != 0 ) {
+ Status = GetPeCoffImageFixLoadingAssignedAddress (&(Image->ImageContext));
+
+ if (EFI_ERROR (Status)) {
+ //
+ // If the code memory is not ready, invoke CoreAllocatePage with AllocateAnyPages to load the driver.
+ //
+ DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED ERROR: Loading module at fixed address failed since specified memory is not available.\n"));
+
+ Status = CoreAllocatePages (
+ AllocateAnyPages,
+ (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
+ Image->NumberOfPages,
+ &Image->ImageContext.ImageAddress
+ );
+ }
+ } else {
+ if (Image->ImageContext.ImageAddress >= 0x100000 || Image->ImageContext.RelocationsStripped) {
+ Status = CoreAllocatePages (
+ AllocateAddress,
+ (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
+ Image->NumberOfPages,
+ &Image->ImageContext.ImageAddress
+ );
+ }
+ if (EFI_ERROR (Status) && !Image->ImageContext.RelocationsStripped) {
+ Status = CoreAllocatePages (
+ AllocateAnyPages,
+ (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType),
+ Image->NumberOfPages,
+ &Image->ImageContext.ImageAddress
+ );
+ }
+ }
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ DstBufAlocated = TRUE;
+ } else {
+ //
+ // Caller provided the destination buffer
+ //
+
+ if (Image->ImageContext.RelocationsStripped && (Image->ImageContext.ImageAddress != DstBuffer)) {
+ //
+ // If the image relocations were stripped, and the caller provided a
+ // destination buffer address that does not match the address that the
+ // image is linked at, then the image cannot be loaded.
+ //
+ return EFI_INVALID_PARAMETER;
+ }
+
+ if (Image->NumberOfPages != 0 &&
+ Image->NumberOfPages <
+ (EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment))) {
+ Image->NumberOfPages = EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment);
+ return EFI_BUFFER_TOO_SMALL;
+ }
+
+ Image->NumberOfPages = EFI_SIZE_TO_PAGES ((UINTN)Image->ImageContext.ImageSize + Image->ImageContext.SectionAlignment);
+ Image->ImageContext.ImageAddress = DstBuffer;
+ }
+
+ Image->ImageBasePage = Image->ImageContext.ImageAddress;
+ if (!Image->ImageContext.IsTeImage) {
+ Image->ImageContext.ImageAddress =
+ (Image->ImageContext.ImageAddress + Image->ImageContext.SectionAlignment - 1) &
+ ~((UINTN)Image->ImageContext.SectionAlignment - 1);
+ }
+
+ //
+ // Load the image from the file into the allocated memory
+ //
+ Status = PeCoffLoaderLoadImage (&Image->ImageContext);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // If this is a Runtime Driver, then allocate memory for the FixupData that
+ // is used to relocate the image when SetVirtualAddressMap() is called. The
+ // relocation is done by the Runtime AP.
+ //
+ if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION) != 0) {
+ if (Image->ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {
+ Image->ImageContext.FixupData = AllocateRuntimePool ((UINTN)(Image->ImageContext.FixupDataSize));
+ if (Image->ImageContext.FixupData == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+ }
+ }
+
+ //
+ // Relocate the image in memory
+ //
+ Status = PeCoffLoaderRelocateImage (&Image->ImageContext);
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Flush the Instruction Cache
+ //
+ InvalidateInstructionCacheRange ((VOID *)(UINTN)Image->ImageContext.ImageAddress, (UINTN)Image->ImageContext.ImageSize);
+
+ //
+ // Copy the machine type from the context to the image private data.
+ //
+ Image->Machine = Image->ImageContext.Machine;
+
+ //
+ // Get the image entry point.
+ //
+ Image->EntryPoint = (EFI_IMAGE_ENTRY_POINT)(UINTN)Image->ImageContext.EntryPoint;
+
+ //
+ // Fill in the image information for the Loaded Image Protocol
+ //
+ Image->Type = Image->ImageContext.ImageType;
+ Image->Info.ImageBase = (VOID *)(UINTN)Image->ImageContext.ImageAddress;
+ Image->Info.ImageSize = Image->ImageContext.ImageSize;
+ Image->Info.ImageCodeType = (EFI_MEMORY_TYPE) (Image->ImageContext.ImageCodeMemoryType);
+ Image->Info.ImageDataType = (EFI_MEMORY_TYPE) (Image->ImageContext.ImageDataMemoryType);
+ if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION) != 0) {
+ if (Image->ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_RUNTIME_DRIVER) {
+ //
+ // Make a list off all the RT images so we can let the RT AP know about them.
+ //
+ Image->RuntimeData = AllocateRuntimePool (sizeof(EFI_RUNTIME_IMAGE_ENTRY));
+ if (Image->RuntimeData == NULL) {
+ goto Done;
+ }
+ Image->RuntimeData->ImageBase = Image->Info.ImageBase;
+ Image->RuntimeData->ImageSize = (UINT64) (Image->Info.ImageSize);
+ Image->RuntimeData->RelocationData = Image->ImageContext.FixupData;
+ Image->RuntimeData->Handle = Image->Handle;
+ InsertTailList (&gRuntime->ImageHead, &Image->RuntimeData->Link);
+ InsertImageRecord (Image->RuntimeData);
+ }
+ }
+
+ //
+ // Fill in the entry point of the image if it is available
+ //
+ if (EntryPoint != NULL) {
+ *EntryPoint = Image->ImageContext.EntryPoint;
+ }
+
+ //
+ // Print the load address and the PDB file name if it is available
+ //
+
+ DEBUG_CODE_BEGIN ();
+
+ UINTN Index;
+ UINTN StartIndex;
+ CHAR8 EfiFileName[256];
+
+
+ DEBUG ((DEBUG_INFO | DEBUG_LOAD,
+ "Loading driver at 0x%11p EntryPoint=0x%11p ",
+ (VOID *)(UINTN) Image->ImageContext.ImageAddress,
+ FUNCTION_ENTRY_POINT (Image->ImageContext.EntryPoint)));
+
+
+ //
+ // Print Module Name by Pdb file path.
+ // Windows and Unix style file path are all trimmed correctly.
+ //
+ if (Image->ImageContext.PdbPointer != NULL) {
+ StartIndex = 0;
+ for (Index = 0; Image->ImageContext.PdbPointer[Index] != 0; Index++) {
+ if ((Image->ImageContext.PdbPointer[Index] == '\\') || (Image->ImageContext.PdbPointer[Index] == '/')) {
+ StartIndex = Index + 1;
+ }
+ }
+ //
+ // Copy the PDB file name to our temporary string, and replace .pdb with .efi
+ // The PDB file name is limited in the range of 0~255.
+ // If the length is bigger than 255, trim the redudant characters to avoid overflow in array boundary.
+ //
+ for (Index = 0; Index < sizeof (EfiFileName) - 4; Index++) {
+ EfiFileName[Index] = Image->ImageContext.PdbPointer[Index + StartIndex];
+ if (EfiFileName[Index] == 0) {
+ EfiFileName[Index] = '.';
+ }
+ if (EfiFileName[Index] == '.') {
+ EfiFileName[Index + 1] = 'e';
+ EfiFileName[Index + 2] = 'f';
+ EfiFileName[Index + 3] = 'i';
+ EfiFileName[Index + 4] = 0;
+ break;
+ }
+ }
+
+ if (Index == sizeof (EfiFileName) - 4) {
+ EfiFileName[Index] = 0;
+ }
+ DEBUG ((DEBUG_INFO | DEBUG_LOAD, "%a", EfiFileName)); // &Image->ImageContext.PdbPointer[StartIndex]));
+ }
+ DEBUG ((DEBUG_INFO | DEBUG_LOAD, "\n"));
+
+ DEBUG_CODE_END ();
+
+ return EFI_SUCCESS;
+
+Done:
+
+ //
+ // Free memory.
+ //
+
+ if (DstBufAlocated) {
+ CoreFreePages (Image->ImageContext.ImageAddress, Image->NumberOfPages);
+ Image->ImageContext.ImageAddress = 0;
+ Image->ImageBasePage = 0;
+ }
+
+ if (Image->ImageContext.FixupData != NULL) {
+ CoreFreePool (Image->ImageContext.FixupData);
+ }
+
+ return Status;
+}
+
+
+
+/**
+ Get the image's private data from its handle.
+
+ @param ImageHandle The image handle
+
+ @return Return the image private data associated with ImageHandle.
+
+**/
+LOADED_IMAGE_PRIVATE_DATA *
+CoreLoadedImageInfo (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+
+ Status = CoreHandleProtocol (
+ ImageHandle,
+ &gEfiLoadedImageProtocolGuid,
+ (VOID **)&LoadedImage
+ );
+ if (!EFI_ERROR (Status)) {
+ Image = LOADED_IMAGE_PRIVATE_DATA_FROM_THIS (LoadedImage);
+ } else {
+ DEBUG ((DEBUG_LOAD, "CoreLoadedImageInfo: Not an ImageHandle %p\n", ImageHandle));
+ Image = NULL;
+ }
+
+ return Image;
+}
+
+
+/**
+ Unloads EFI image from memory.
+
+ @param Image EFI image
+ @param FreePage Free allocated pages
+
+**/
+VOID
+CoreUnloadAndCloseImage (
+ IN LOADED_IMAGE_PRIVATE_DATA *Image,
+ IN BOOLEAN FreePage
+ )
+{
+ EFI_STATUS Status;
+ UINTN HandleCount;
+ EFI_HANDLE *HandleBuffer;
+ UINTN HandleIndex;
+ EFI_GUID **ProtocolGuidArray;
+ UINTN ArrayCount;
+ UINTN ProtocolIndex;
+ EFI_OPEN_PROTOCOL_INFORMATION_ENTRY *OpenInfo;
+ UINTN OpenInfoCount;
+ UINTN OpenInfoIndex;
+
+ HandleBuffer = NULL;
+ ProtocolGuidArray = NULL;
+
+ if (Image->Started) {
+ UnregisterMemoryProfileImage (Image);
+ }
+
+ UnprotectUefiImage (&Image->Info, Image->LoadedImageDevicePath);
+
+ if (Image->PeCoffEmu != NULL) {
+ //
+ // If the PE/COFF Emulator protocol exists we must unregister the image.
+ //
+ Image->PeCoffEmu->UnregisterImage (Image->PeCoffEmu, Image->ImageBasePage);
+ }
+
+ //
+ // Unload image, free Image->ImageContext->ModHandle
+ //
+ PeCoffLoaderUnloadImage (&Image->ImageContext);
+
+ //
+ // Free our references to the image handle
+ //
+ if (Image->Handle != NULL) {
+
+ Status = CoreLocateHandleBuffer (
+ AllHandles,
+ NULL,
+ NULL,
+ &HandleCount,
+ &HandleBuffer
+ );
+ if (!EFI_ERROR (Status)) {
+ for (HandleIndex = 0; HandleIndex < HandleCount; HandleIndex++) {
+ Status = CoreProtocolsPerHandle (
+ HandleBuffer[HandleIndex],
+ &ProtocolGuidArray,
+ &ArrayCount
+ );
+ if (!EFI_ERROR (Status)) {
+ for (ProtocolIndex = 0; ProtocolIndex < ArrayCount; ProtocolIndex++) {
+ Status = CoreOpenProtocolInformation (
+ HandleBuffer[HandleIndex],
+ ProtocolGuidArray[ProtocolIndex],
+ &OpenInfo,
+ &OpenInfoCount
+ );
+ if (!EFI_ERROR (Status)) {
+ for (OpenInfoIndex = 0; OpenInfoIndex < OpenInfoCount; OpenInfoIndex++) {
+ if (OpenInfo[OpenInfoIndex].AgentHandle == Image->Handle) {
+ Status = CoreCloseProtocol (
+ HandleBuffer[HandleIndex],
+ ProtocolGuidArray[ProtocolIndex],
+ Image->Handle,
+ OpenInfo[OpenInfoIndex].ControllerHandle
+ );
+ }
+ }
+ if (OpenInfo != NULL) {
+ CoreFreePool(OpenInfo);
+ }
+ }
+ }
+ if (ProtocolGuidArray != NULL) {
+ CoreFreePool(ProtocolGuidArray);
+ }
+ }
+ }
+ if (HandleBuffer != NULL) {
+ CoreFreePool (HandleBuffer);
+ }
+ }
+
+ CoreRemoveDebugImageInfoEntry (Image->Handle);
+
+ Status = CoreUninstallProtocolInterface (
+ Image->Handle,
+ &gEfiLoadedImageDevicePathProtocolGuid,
+ Image->LoadedImageDevicePath
+ );
+
+ Status = CoreUninstallProtocolInterface (
+ Image->Handle,
+ &gEfiLoadedImageProtocolGuid,
+ &Image->Info
+ );
+
+ if (Image->ImageContext.HiiResourceData != 0) {
+ Status = CoreUninstallProtocolInterface (
+ Image->Handle,
+ &gEfiHiiPackageListProtocolGuid,
+ (VOID *) (UINTN) Image->ImageContext.HiiResourceData
+ );
+ }
+
+ }
+
+ if (Image->RuntimeData != NULL) {
+ if (Image->RuntimeData->Link.ForwardLink != NULL) {
+ //
+ // Remove the Image from the Runtime Image list as we are about to Free it!
+ //
+ RemoveEntryList (&Image->RuntimeData->Link);
+ RemoveImageRecord (Image->RuntimeData);
+ }
+ CoreFreePool (Image->RuntimeData);
+ }
+
+ //
+ // Free the Image from memory
+ //
+ if ((Image->ImageBasePage != 0) && FreePage) {
+ CoreFreePages (Image->ImageBasePage, Image->NumberOfPages);
+ }
+
+ //
+ // Done with the Image structure
+ //
+ if (Image->Info.FilePath != NULL) {
+ CoreFreePool (Image->Info.FilePath);
+ }
+
+ if (Image->LoadedImageDevicePath != NULL) {
+ CoreFreePool (Image->LoadedImageDevicePath);
+ }
+
+ if (Image->FixupData != NULL) {
+ CoreFreePool (Image->FixupData);
+ }
+
+ CoreFreePool (Image);
+}
+
+
+/**
+ Loads an EFI image into memory and returns a handle to the image.
+
+ @param BootPolicy If TRUE, indicates that the request originates
+ from the boot manager, and that the boot
+ manager is attempting to load FilePath as a
+ boot selection.
+ @param ParentImageHandle The caller's image handle.
+ @param FilePath The specific file path from which the image is
+ loaded.
+ @param SourceBuffer If not NULL, a pointer to the memory location
+ containing a copy of the image to be loaded.
+ @param SourceSize The size in bytes of SourceBuffer.
+ @param DstBuffer The buffer to store the image
+ @param NumberOfPages If not NULL, it inputs a pointer to the page
+ number of DstBuffer and outputs a pointer to
+ the page number of the image. If this number is
+ not enough, return EFI_BUFFER_TOO_SMALL and
+ this parameter contains the required number.
+ @param ImageHandle Pointer to the returned image handle that is
+ created when the image is successfully loaded.
+ @param EntryPoint A pointer to the entry point
+ @param Attribute The bit mask of attributes to set for the load
+ PE image
+
+ @retval EFI_SUCCESS The image was loaded into memory.
+ @retval EFI_NOT_FOUND The FilePath was not found.
+ @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
+ @retval EFI_BUFFER_TOO_SMALL The buffer is too small
+ @retval EFI_UNSUPPORTED The image type is not supported, or the device
+ path cannot be parsed to locate the proper
+ protocol for loading the file.
+ @retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient
+ resources.
+ @retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
+ understood.
+ @retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
+ @retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
+ image from being loaded. NULL is returned in *ImageHandle.
+ @retval EFI_SECURITY_VIOLATION Image was loaded and an ImageHandle was created with a
+ valid EFI_LOADED_IMAGE_PROTOCOL. However, the current
+ platform policy specifies that the image should not be started.
+
+**/
+EFI_STATUS
+CoreLoadImageCommon (
+ IN BOOLEAN BootPolicy,
+ IN EFI_HANDLE ParentImageHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
+ IN VOID *SourceBuffer OPTIONAL,
+ IN UINTN SourceSize,
+ IN EFI_PHYSICAL_ADDRESS DstBuffer OPTIONAL,
+ IN OUT UINTN *NumberOfPages OPTIONAL,
+ OUT EFI_HANDLE *ImageHandle,
+ OUT EFI_PHYSICAL_ADDRESS *EntryPoint OPTIONAL,
+ IN UINT32 Attribute
+ )
+{
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+ LOADED_IMAGE_PRIVATE_DATA *ParentImage;
+ IMAGE_FILE_HANDLE FHand;
+ EFI_STATUS Status;
+ EFI_STATUS SecurityStatus;
+ EFI_HANDLE DeviceHandle;
+ UINT32 AuthenticationStatus;
+ EFI_DEVICE_PATH_PROTOCOL *OriginalFilePath;
+ EFI_DEVICE_PATH_PROTOCOL *HandleFilePath;
+ EFI_DEVICE_PATH_PROTOCOL *InputFilePath;
+ EFI_DEVICE_PATH_PROTOCOL *Node;
+ UINTN FilePathSize;
+ BOOLEAN ImageIsFromFv;
+ BOOLEAN ImageIsFromLoadFile;
+
+ SecurityStatus = EFI_SUCCESS;
+
+ ASSERT (gEfiCurrentTpl < TPL_NOTIFY);
+ ParentImage = NULL;
+
+ //
+ // The caller must pass in a valid ParentImageHandle
+ //
+ if (ImageHandle == NULL || ParentImageHandle == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ParentImage = CoreLoadedImageInfo (ParentImageHandle);
+ if (ParentImage == NULL) {
+ DEBUG((DEBUG_LOAD|DEBUG_ERROR, "LoadImageEx: Parent handle not an image handle\n"));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ ZeroMem (&FHand, sizeof (IMAGE_FILE_HANDLE));
+ FHand.Signature = IMAGE_FILE_HANDLE_SIGNATURE;
+ OriginalFilePath = FilePath;
+ InputFilePath = FilePath;
+ HandleFilePath = FilePath;
+ DeviceHandle = NULL;
+ Status = EFI_SUCCESS;
+ AuthenticationStatus = 0;
+ ImageIsFromFv = FALSE;
+ ImageIsFromLoadFile = FALSE;
+
+ //
+ // If the caller passed a copy of the file, then just use it
+ //
+ if (SourceBuffer != NULL) {
+ FHand.Source = SourceBuffer;
+ FHand.SourceSize = SourceSize;
+ Status = CoreLocateDevicePath (&gEfiDevicePathProtocolGuid, &HandleFilePath, &DeviceHandle);
+ if (EFI_ERROR (Status)) {
+ DeviceHandle = NULL;
+ }
+ if (SourceSize > 0) {
+ Status = EFI_SUCCESS;
+ } else {
+ Status = EFI_LOAD_ERROR;
+ }
+ } else {
+ if (FilePath == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
+ //
+ // Try to get the image device handle by checking the match protocol.
+ //
+ Node = NULL;
+ Status = CoreLocateDevicePath (&gEfiFirmwareVolume2ProtocolGuid, &HandleFilePath, &DeviceHandle);
+ if (!EFI_ERROR (Status)) {
+ ImageIsFromFv = TRUE;
+ } else {
+ HandleFilePath = FilePath;
+ Status = CoreLocateDevicePath (&gEfiSimpleFileSystemProtocolGuid, &HandleFilePath, &DeviceHandle);
+ if (EFI_ERROR (Status)) {
+ if (!BootPolicy) {
+ HandleFilePath = FilePath;
+ Status = CoreLocateDevicePath (&gEfiLoadFile2ProtocolGuid, &HandleFilePath, &DeviceHandle);
+ }
+ if (EFI_ERROR (Status)) {
+ HandleFilePath = FilePath;
+ Status = CoreLocateDevicePath (&gEfiLoadFileProtocolGuid, &HandleFilePath, &DeviceHandle);
+ if (!EFI_ERROR (Status)) {
+ ImageIsFromLoadFile = TRUE;
+ Node = HandleFilePath;
+ }
+ }
+ }
+ }
+
+ //
+ // Get the source file buffer by its device path.
+ //
+ FHand.Source = GetFileBufferByFilePath (
+ BootPolicy,
+ FilePath,
+ &FHand.SourceSize,
+ &AuthenticationStatus
+ );
+ if (FHand.Source == NULL) {
+ Status = EFI_NOT_FOUND;
+ } else {
+ FHand.FreeBuffer = TRUE;
+ if (ImageIsFromLoadFile) {
+ //
+ // LoadFile () may cause the device path of the Handle be updated.
+ //
+ OriginalFilePath = AppendDevicePath (DevicePathFromHandle (DeviceHandle), Node);
+ }
+ }
+ }
+
+ if (EFI_ERROR (Status)) {
+ Image = NULL;
+ goto Done;
+ }
+
+ if (gSecurity2 != NULL) {
+ //
+ // Verify File Authentication through the Security2 Architectural Protocol
+ //
+ SecurityStatus = gSecurity2->FileAuthentication (
+ gSecurity2,
+ OriginalFilePath,
+ FHand.Source,
+ FHand.SourceSize,
+ BootPolicy
+ );
+ if (!EFI_ERROR (SecurityStatus) && ImageIsFromFv) {
+ //
+ // When Security2 is installed, Security Architectural Protocol must be published.
+ //
+ ASSERT (gSecurity != NULL);
+
+ //
+ // Verify the Authentication Status through the Security Architectural Protocol
+ // Only on images that have been read using Firmware Volume protocol.
+ //
+ SecurityStatus = gSecurity->FileAuthenticationState (
+ gSecurity,
+ AuthenticationStatus,
+ OriginalFilePath
+ );
+ }
+ } else if ((gSecurity != NULL) && (OriginalFilePath != NULL)) {
+ //
+ // Verify the Authentication Status through the Security Architectural Protocol
+ //
+ SecurityStatus = gSecurity->FileAuthenticationState (
+ gSecurity,
+ AuthenticationStatus,
+ OriginalFilePath
+ );
+ }
+
+ //
+ // Check Security Status.
+ //
+ if (EFI_ERROR (SecurityStatus) && SecurityStatus != EFI_SECURITY_VIOLATION) {
+ if (SecurityStatus == EFI_ACCESS_DENIED) {
+ //
+ // Image was not loaded because the platform policy prohibits the image from being loaded.
+ // It's the only place we could meet EFI_ACCESS_DENIED.
+ //
+ *ImageHandle = NULL;
+ }
+ Status = SecurityStatus;
+ Image = NULL;
+ goto Done;
+ }
+
+ //
+ // Allocate a new image structure
+ //
+ Image = AllocateZeroPool (sizeof(LOADED_IMAGE_PRIVATE_DATA));
+ if (Image == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+
+ //
+ // Pull out just the file portion of the DevicePath for the LoadedImage FilePath
+ //
+ FilePath = OriginalFilePath;
+ if (DeviceHandle != NULL) {
+ Status = CoreHandleProtocol (DeviceHandle, &gEfiDevicePathProtocolGuid, (VOID **)&HandleFilePath);
+ if (!EFI_ERROR (Status)) {
+ FilePathSize = GetDevicePathSize (HandleFilePath) - sizeof(EFI_DEVICE_PATH_PROTOCOL);
+ FilePath = (EFI_DEVICE_PATH_PROTOCOL *) (((UINT8 *)FilePath) + FilePathSize );
+ }
+ }
+ //
+ // Initialize the fields for an internal driver
+ //
+ Image->Signature = LOADED_IMAGE_PRIVATE_DATA_SIGNATURE;
+ Image->Info.SystemTable = gDxeCoreST;
+ Image->Info.DeviceHandle = DeviceHandle;
+ Image->Info.Revision = EFI_LOADED_IMAGE_PROTOCOL_REVISION;
+ Image->Info.FilePath = DuplicateDevicePath (FilePath);
+ Image->Info.ParentHandle = ParentImageHandle;
+
+
+ if (NumberOfPages != NULL) {
+ Image->NumberOfPages = *NumberOfPages ;
+ } else {
+ Image->NumberOfPages = 0 ;
+ }
+
+ //
+ // Install the protocol interfaces for this image
+ // don't fire notifications yet
+ //
+ Status = CoreInstallProtocolInterfaceNotify (
+ &Image->Handle,
+ &gEfiLoadedImageProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &Image->Info,
+ FALSE
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Load the image. If EntryPoint is Null, it will not be set.
+ //
+ Status = CoreLoadPeImage (BootPolicy, &FHand, Image, DstBuffer, EntryPoint, Attribute);
+ if (EFI_ERROR (Status)) {
+ if ((Status == EFI_BUFFER_TOO_SMALL) || (Status == EFI_OUT_OF_RESOURCES)) {
+ if (NumberOfPages != NULL) {
+ *NumberOfPages = Image->NumberOfPages;
+ }
+ }
+ goto Done;
+ }
+
+ if (NumberOfPages != NULL) {
+ *NumberOfPages = Image->NumberOfPages;
+ }
+
+ //
+ // Register the image in the Debug Image Info Table if the attribute is set
+ //
+ if ((Attribute & EFI_LOAD_PE_IMAGE_ATTRIBUTE_DEBUG_IMAGE_INFO_TABLE_REGISTRATION) != 0) {
+ CoreNewDebugImageInfoEntry (EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL, &Image->Info, Image->Handle);
+ }
+
+ //
+ //Reinstall loaded image protocol to fire any notifications
+ //
+ Status = CoreReinstallProtocolInterface (
+ Image->Handle,
+ &gEfiLoadedImageProtocolGuid,
+ &Image->Info,
+ &Image->Info
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // If DevicePath parameter to the LoadImage() is not NULL, then make a copy of DevicePath,
+ // otherwise Loaded Image Device Path Protocol is installed with a NULL interface pointer.
+ //
+ if (OriginalFilePath != NULL) {
+ Image->LoadedImageDevicePath = DuplicateDevicePath (OriginalFilePath);
+ }
+
+ //
+ // Install Loaded Image Device Path Protocol onto the image handle of a PE/COFE image
+ //
+ Status = CoreInstallProtocolInterface (
+ &Image->Handle,
+ &gEfiLoadedImageDevicePathProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ Image->LoadedImageDevicePath
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Install HII Package List Protocol onto the image handle
+ //
+ if (Image->ImageContext.HiiResourceData != 0) {
+ Status = CoreInstallProtocolInterface (
+ &Image->Handle,
+ &gEfiHiiPackageListProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ (VOID *) (UINTN) Image->ImageContext.HiiResourceData
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+ }
+ ProtectUefiImage (&Image->Info, Image->LoadedImageDevicePath);
+
+ //
+ // Success. Return the image handle
+ //
+ *ImageHandle = Image->Handle;
+
+Done:
+ //
+ // All done accessing the source file
+ // If we allocated the Source buffer, free it
+ //
+ if (FHand.FreeBuffer) {
+ CoreFreePool (FHand.Source);
+ }
+ if (OriginalFilePath != InputFilePath) {
+ CoreFreePool (OriginalFilePath);
+ }
+
+ //
+ // There was an error. If there's an Image structure, free it
+ //
+ if (EFI_ERROR (Status)) {
+ if (Image != NULL) {
+ CoreUnloadAndCloseImage (Image, (BOOLEAN)(DstBuffer == 0));
+ Image = NULL;
+ }
+ } else if (EFI_ERROR (SecurityStatus)) {
+ Status = SecurityStatus;
+ }
+
+ //
+ // Track the return status from LoadImage.
+ //
+ if (Image != NULL) {
+ Image->LoadImageStatus = Status;
+ }
+
+ return Status;
+}
+
+
+
+
+/**
+ Loads an EFI image into memory and returns a handle to the image.
+
+ @param BootPolicy If TRUE, indicates that the request originates
+ from the boot manager, and that the boot
+ manager is attempting to load FilePath as a
+ boot selection.
+ @param ParentImageHandle The caller's image handle.
+ @param FilePath The specific file path from which the image is
+ loaded.
+ @param SourceBuffer If not NULL, a pointer to the memory location
+ containing a copy of the image to be loaded.
+ @param SourceSize The size in bytes of SourceBuffer.
+ @param ImageHandle Pointer to the returned image handle that is
+ created when the image is successfully loaded.
+
+ @retval EFI_SUCCESS The image was loaded into memory.
+ @retval EFI_NOT_FOUND The FilePath was not found.
+ @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value.
+ @retval EFI_UNSUPPORTED The image type is not supported, or the device
+ path cannot be parsed to locate the proper
+ protocol for loading the file.
+ @retval EFI_OUT_OF_RESOURCES Image was not loaded due to insufficient
+ resources.
+ @retval EFI_LOAD_ERROR Image was not loaded because the image format was corrupt or not
+ understood.
+ @retval EFI_DEVICE_ERROR Image was not loaded because the device returned a read error.
+ @retval EFI_ACCESS_DENIED Image was not loaded because the platform policy prohibits the
+ image from being loaded. NULL is returned in *ImageHandle.
+ @retval EFI_SECURITY_VIOLATION Image was loaded and an ImageHandle was created with a
+ valid EFI_LOADED_IMAGE_PROTOCOL. However, the current
+ platform policy specifies that the image should not be started.
+
+**/
+EFI_STATUS
+EFIAPI
+CoreLoadImage (
+ IN BOOLEAN BootPolicy,
+ IN EFI_HANDLE ParentImageHandle,
+ IN EFI_DEVICE_PATH_PROTOCOL *FilePath,
+ IN VOID *SourceBuffer OPTIONAL,
+ IN UINTN SourceSize,
+ OUT EFI_HANDLE *ImageHandle
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+ PERF_LOAD_IMAGE_BEGIN (NULL);
+
+ Status = CoreLoadImageCommon (
+ BootPolicy,
+ ParentImageHandle,
+ FilePath,
+ SourceBuffer,
+ SourceSize,
+ (EFI_PHYSICAL_ADDRESS) (UINTN) NULL,
+ NULL,
+ ImageHandle,
+ NULL,
+ EFI_LOAD_PE_IMAGE_ATTRIBUTE_RUNTIME_REGISTRATION | EFI_LOAD_PE_IMAGE_ATTRIBUTE_DEBUG_IMAGE_INFO_TABLE_REGISTRATION
+ );
+
+ Handle = NULL;
+ if (!EFI_ERROR (Status)) {
+ //
+ // ImageHandle will be valid only Status is success.
+ //
+ Handle = *ImageHandle;
+ }
+
+ PERF_LOAD_IMAGE_END (Handle);
+
+ return Status;
+}
+
+/**
+ Transfer control to a loaded image's entry point.
+
+ @param ImageHandle Handle of image to be started.
+ @param ExitDataSize Pointer of the size to ExitData
+ @param ExitData Pointer to a pointer to a data buffer that
+ includes a Null-terminated string,
+ optionally followed by additional binary data.
+ The string is a description that the caller may
+ use to further indicate the reason for the
+ image's exit.
+
+ @retval EFI_INVALID_PARAMETER Invalid parameter
+ @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate
+ @retval EFI_SECURITY_VIOLATION The current platform policy specifies that the image should not be started.
+ @retval EFI_SUCCESS Successfully transfer control to the image's
+ entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+CoreStartImage (
+ IN EFI_HANDLE ImageHandle,
+ OUT UINTN *ExitDataSize,
+ OUT CHAR16 **ExitData OPTIONAL
+ )
+{
+ EFI_STATUS Status;
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+ LOADED_IMAGE_PRIVATE_DATA *LastImage;
+ UINT64 HandleDatabaseKey;
+ UINTN SetJumpFlag;
+ EFI_HANDLE Handle;
+
+ Handle = ImageHandle;
+
+ Image = CoreLoadedImageInfo (ImageHandle);
+ if (Image == NULL || Image->Started) {
+ return EFI_INVALID_PARAMETER;
+ }
+ if (EFI_ERROR (Image->LoadImageStatus)) {
+ return Image->LoadImageStatus;
+ }
+
+ //
+ // The image to be started must have the machine type supported by DxeCore.
+ //
+ if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->Machine) &&
+ Image->PeCoffEmu == NULL) {
+ //
+ // Do not ASSERT here, because image might be loaded via EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
+ // But it can not be started.
+ //
+ DEBUG ((EFI_D_ERROR, "Image type %s can't be started ", GetMachineTypeName(Image->Machine)));
+ DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n", GetMachineTypeName(mDxeCoreImageMachineType)));
+ return EFI_UNSUPPORTED;
+ }
+
+ if (Image->PeCoffEmu != NULL) {
+ Status = Image->PeCoffEmu->RegisterImage (Image->PeCoffEmu,
+ Image->ImageBasePage,
+ EFI_PAGES_TO_SIZE (Image->NumberOfPages),
+ &Image->EntryPoint);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_LOAD | DEBUG_ERROR,
+ "CoreLoadPeImage: Failed to register foreign image with emulator - %r\n",
+ Status));
+ return Status;
+ }
+ }
+
+ PERF_START_IMAGE_BEGIN (Handle);
+
+
+ //
+ // Push the current start image context, and
+ // link the current image to the head. This is the
+ // only image that can call Exit()
+ //
+ HandleDatabaseKey = CoreGetHandleDatabaseKey ();
+ LastImage = mCurrentImage;
+ mCurrentImage = Image;
+ Image->Tpl = gEfiCurrentTpl;
+
+ //
+ // Set long jump for Exit() support
+ // JumpContext must be aligned on a CPU specific boundary.
+ // Overallocate the buffer and force the required alignment
+ //
+ Image->JumpBuffer = AllocatePool (sizeof (BASE_LIBRARY_JUMP_BUFFER) + BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT);
+ if (Image->JumpBuffer == NULL) {
+ //
+ // Image may be unloaded after return with failure,
+ // then ImageHandle may be invalid, so use NULL handle to record perf log.
+ //
+ PERF_START_IMAGE_END (NULL);
+
+ //
+ // Pop the current start image context
+ //
+ mCurrentImage = LastImage;
+
+ return EFI_OUT_OF_RESOURCES;
+ }
+ Image->JumpContext = ALIGN_POINTER (Image->JumpBuffer, BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT);
+
+ SetJumpFlag = SetJump (Image->JumpContext);
+ //
+ // The initial call to SetJump() must always return 0.
+ // Subsequent calls to LongJump() cause a non-zero value to be returned by SetJump().
+ //
+ if (SetJumpFlag == 0) {
+ RegisterMemoryProfileImage (Image, (Image->ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION ? EFI_FV_FILETYPE_APPLICATION : EFI_FV_FILETYPE_DRIVER));
+ //
+ // Call the image's entry point
+ //
+ Image->Started = TRUE;
+ Image->Status = Image->EntryPoint (ImageHandle, Image->Info.SystemTable);
+
+ //
+ // Add some debug information if the image returned with error.
+ // This make the user aware and check if the driver image have already released
+ // all the resource in this situation.
+ //
+ DEBUG_CODE_BEGIN ();
+ if (EFI_ERROR (Image->Status)) {
+ DEBUG ((DEBUG_ERROR, "Error: Image at %11p start failed: %r\n", Image->Info.ImageBase, Image->Status));
+ }
+ DEBUG_CODE_END ();
+
+ //
+ // If the image returns, exit it through Exit()
+ //
+ CoreExit (ImageHandle, Image->Status, 0, NULL);
+ }
+
+ //
+ // Image has completed. Verify the tpl is the same
+ //
+ ASSERT (Image->Tpl == gEfiCurrentTpl);
+ CoreRestoreTpl (Image->Tpl);
+
+ CoreFreePool (Image->JumpBuffer);
+
+ //
+ // Pop the current start image context
+ //
+ mCurrentImage = LastImage;
+
+ //
+ // UEFI Specification - StartImage() - EFI 1.10 Extension
+ // To maintain compatibility with UEFI drivers that are written to the EFI
+ // 1.02 Specification, StartImage() must monitor the handle database before
+ // and after each image is started. If any handles are created or modified
+ // when an image is started, then EFI_BOOT_SERVICES.ConnectController() must
+ // be called with the Recursive parameter set to TRUE for each of the newly
+ // created or modified handles before StartImage() returns.
+ //
+ if (Image->Type != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {
+ CoreConnectHandlesByKey (HandleDatabaseKey);
+ }
+
+ //
+ // Handle the image's returned ExitData
+ //
+ DEBUG_CODE_BEGIN ();
+ if (Image->ExitDataSize != 0 || Image->ExitData != NULL) {
+
+ DEBUG ((DEBUG_LOAD, "StartImage: ExitDataSize %d, ExitData %p", (UINT32)Image->ExitDataSize, Image->ExitData));
+ if (Image->ExitData != NULL) {
+ DEBUG ((DEBUG_LOAD, " (%hs)", Image->ExitData));
+ }
+ DEBUG ((DEBUG_LOAD, "\n"));
+ }
+ DEBUG_CODE_END ();
+
+ //
+ // Return the exit data to the caller
+ //
+ if (ExitData != NULL && ExitDataSize != NULL) {
+ *ExitDataSize = Image->ExitDataSize;
+ *ExitData = Image->ExitData;
+ } else {
+ //
+ // Caller doesn't want the exit data, free it
+ //
+ CoreFreePool (Image->ExitData);
+ Image->ExitData = NULL;
+ }
+
+ //
+ // Save the Status because Image will get destroyed if it is unloaded.
+ //
+ Status = Image->Status;
+
+ //
+ // If the image returned an error, or if the image is an application
+ // unload it
+ //
+ if (EFI_ERROR (Image->Status) || Image->Type == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION) {
+ CoreUnloadAndCloseImage (Image, TRUE);
+ //
+ // ImageHandle may be invalid after the image is unloaded, so use NULL handle to record perf log.
+ //
+ Handle = NULL;
+ }
+
+ //
+ // Done
+ //
+ PERF_START_IMAGE_END (Handle);
+ return Status;
+}
+
+/**
+ Terminates the currently loaded EFI image and returns control to boot services.
+
+ @param ImageHandle Handle that identifies the image. This
+ parameter is passed to the image on entry.
+ @param Status The image's exit code.
+ @param ExitDataSize The size, in bytes, of ExitData. Ignored if
+ ExitStatus is EFI_SUCCESS.
+ @param ExitData Pointer to a data buffer that includes a
+ Null-terminated Unicode string, optionally
+ followed by additional binary data. The string
+ is a description that the caller may use to
+ further indicate the reason for the image's
+ exit.
+
+ @retval EFI_INVALID_PARAMETER Image handle is NULL or it is not current
+ image.
+ @retval EFI_SUCCESS Successfully terminates the currently loaded
+ EFI image.
+ @retval EFI_ACCESS_DENIED Should never reach there.
+ @retval EFI_OUT_OF_RESOURCES Could not allocate pool
+
+**/
+EFI_STATUS
+EFIAPI
+CoreExit (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_STATUS Status,
+ IN UINTN ExitDataSize,
+ IN CHAR16 *ExitData OPTIONAL
+ )
+{
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+ EFI_TPL OldTpl;
+
+ //
+ // Prevent possible reentrance to this function
+ // for the same ImageHandle
+ //
+ OldTpl = CoreRaiseTpl (TPL_NOTIFY);
+
+ Image = CoreLoadedImageInfo (ImageHandle);
+ if (Image == NULL) {
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ if (!Image->Started) {
+ //
+ // The image has not been started so just free its resources
+ //
+ CoreUnloadAndCloseImage (Image, TRUE);
+ Status = EFI_SUCCESS;
+ goto Done;
+ }
+
+ //
+ // Image has been started, verify this image can exit
+ //
+ if (Image != mCurrentImage) {
+ DEBUG ((DEBUG_LOAD|DEBUG_ERROR, "Exit: Image is not exitable image\n"));
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ //
+ // Set status
+ //
+ Image->Status = Status;
+
+ //
+ // If there's ExitData info, move it
+ //
+ if (ExitData != NULL) {
+ Image->ExitDataSize = ExitDataSize;
+ Image->ExitData = AllocatePool (Image->ExitDataSize);
+ if (Image->ExitData == NULL) {
+ Status = EFI_OUT_OF_RESOURCES;
+ goto Done;
+ }
+ CopyMem (Image->ExitData, ExitData, Image->ExitDataSize);
+ }
+
+ CoreRestoreTpl (OldTpl);
+ //
+ // return to StartImage
+ //
+ LongJump (Image->JumpContext, (UINTN)-1);
+
+ //
+ // If we return from LongJump, then it is an error
+ //
+ ASSERT (FALSE);
+ Status = EFI_ACCESS_DENIED;
+Done:
+ CoreRestoreTpl (OldTpl);
+ return Status;
+}
+
+
+
+
+/**
+ Unloads an image.
+
+ @param ImageHandle Handle that identifies the image to be
+ unloaded.
+
+ @retval EFI_SUCCESS The image has been unloaded.
+ @retval EFI_UNSUPPORTED The image has been started, and does not support
+ unload.
+ @retval EFI_INVALID_PARAMPETER ImageHandle is not a valid image handle.
+
+**/
+EFI_STATUS
+EFIAPI
+CoreUnloadImage (
+ IN EFI_HANDLE ImageHandle
+ )
+{
+ EFI_STATUS Status;
+ LOADED_IMAGE_PRIVATE_DATA *Image;
+
+ Image = CoreLoadedImageInfo (ImageHandle);
+ if (Image == NULL ) {
+ //
+ // The image handle is not valid
+ //
+ Status = EFI_INVALID_PARAMETER;
+ goto Done;
+ }
+
+ if (Image->Started) {
+ //
+ // The image has been started, request it to unload.
+ //
+ Status = EFI_UNSUPPORTED;
+ if (Image->Info.Unload != NULL) {
+ Status = Image->Info.Unload (ImageHandle);
+ }
+
+ } else {
+ //
+ // This Image hasn't been started, thus it can be unloaded
+ //
+ Status = EFI_SUCCESS;
+ }
+
+
+ if (!EFI_ERROR (Status)) {
+ //
+ // if the Image was not started or Unloaded O.K. then clean up
+ //
+ CoreUnloadAndCloseImage (Image, TRUE);
+ }
+
+Done:
+ return Status;
+}
diff --git a/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.h b/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.h new file mode 100644 index 000000000..e9c44ab2a --- /dev/null +++ b/roms/edk2/MdeModulePkg/Core/Dxe/Image/Image.h @@ -0,0 +1,24 @@ +/** @file
+ Data structure and functions to load and unload PeImage.
+
+Copyright (c) 2006 - 2019, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#ifndef _IMAGE_H_
+#define _IMAGE_H_
+
+//
+// Private Data Types
+//
+#define IMAGE_FILE_HANDLE_SIGNATURE SIGNATURE_32('i','m','g','f')
+typedef struct {
+ UINTN Signature;
+ BOOLEAN FreeBuffer;
+ VOID *Source;
+ UINTN SourceSize;
+} IMAGE_FILE_HANDLE;
+
+#endif
|