/** @file | |
DXE Core Main Entry Point | |
Copyright (c) 2006 - 2022, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#include "DxeMain.h" | |
// | |
// DXE Core Global Variables for Protocols from PEI | |
// | |
EFI_HANDLE mDecompressHandle = NULL; | |
// | |
// DXE Core globals for Architecture Protocols | |
// | |
EFI_SECURITY_ARCH_PROTOCOL *gSecurity = NULL; | |
EFI_SECURITY2_ARCH_PROTOCOL *gSecurity2 = NULL; | |
EFI_CPU_ARCH_PROTOCOL *gCpu = NULL; | |
EFI_METRONOME_ARCH_PROTOCOL *gMetronome = NULL; | |
EFI_TIMER_ARCH_PROTOCOL *gTimer = NULL; | |
EFI_BDS_ARCH_PROTOCOL *gBds = NULL; | |
EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *gWatchdogTimer = NULL; | |
// | |
// DXE Core globals for optional protocol dependencies | |
// | |
EFI_SMM_BASE2_PROTOCOL *gSmmBase2 = NULL; | |
// | |
// DXE Core Global used to update core loaded image protocol handle | |
// | |
EFI_GUID *gDxeCoreFileName; | |
EFI_LOADED_IMAGE_PROTOCOL *gDxeCoreLoadedImage; | |
// | |
// DXE Core Module Variables | |
// | |
EFI_BOOT_SERVICES mBootServices = { | |
{ | |
EFI_BOOT_SERVICES_SIGNATURE, // Signature | |
EFI_BOOT_SERVICES_REVISION, // Revision | |
sizeof (EFI_BOOT_SERVICES), // HeaderSize | |
0, // CRC32 | |
0 // Reserved | |
}, | |
(EFI_RAISE_TPL)CoreRaiseTpl, // RaiseTPL | |
(EFI_RESTORE_TPL)CoreRestoreTpl, // RestoreTPL | |
(EFI_ALLOCATE_PAGES)CoreAllocatePages, // AllocatePages | |
(EFI_FREE_PAGES)CoreFreePages, // FreePages | |
(EFI_GET_MEMORY_MAP)CoreGetMemoryMap, // GetMemoryMap | |
(EFI_ALLOCATE_POOL)CoreAllocatePool, // AllocatePool | |
(EFI_FREE_POOL)CoreFreePool, // FreePool | |
(EFI_CREATE_EVENT)CoreCreateEvent, // CreateEvent | |
(EFI_SET_TIMER)CoreSetTimer, // SetTimer | |
(EFI_WAIT_FOR_EVENT)CoreWaitForEvent, // WaitForEvent | |
(EFI_SIGNAL_EVENT)CoreSignalEvent, // SignalEvent | |
(EFI_CLOSE_EVENT)CoreCloseEvent, // CloseEvent | |
(EFI_CHECK_EVENT)CoreCheckEvent, // CheckEvent | |
(EFI_INSTALL_PROTOCOL_INTERFACE)CoreInstallProtocolInterface, // InstallProtocolInterface | |
(EFI_REINSTALL_PROTOCOL_INTERFACE)CoreReinstallProtocolInterface, // ReinstallProtocolInterface | |
(EFI_UNINSTALL_PROTOCOL_INTERFACE)CoreUninstallProtocolInterface, // UninstallProtocolInterface | |
(EFI_HANDLE_PROTOCOL)CoreHandleProtocol, // HandleProtocol | |
(VOID *)NULL, // Reserved | |
(EFI_REGISTER_PROTOCOL_NOTIFY)CoreRegisterProtocolNotify, // RegisterProtocolNotify | |
(EFI_LOCATE_HANDLE)CoreLocateHandle, // LocateHandle | |
(EFI_LOCATE_DEVICE_PATH)CoreLocateDevicePath, // LocateDevicePath | |
(EFI_INSTALL_CONFIGURATION_TABLE)CoreInstallConfigurationTable, // InstallConfigurationTable | |
(EFI_IMAGE_LOAD)CoreLoadImage, // LoadImage | |
(EFI_IMAGE_START)CoreStartImage, // StartImage | |
(EFI_EXIT)CoreExit, // Exit | |
(EFI_IMAGE_UNLOAD)CoreUnloadImage, // UnloadImage | |
(EFI_EXIT_BOOT_SERVICES)CoreExitBootServices, // ExitBootServices | |
(EFI_GET_NEXT_MONOTONIC_COUNT)CoreEfiNotAvailableYetArg1, // GetNextMonotonicCount | |
(EFI_STALL)CoreStall, // Stall | |
(EFI_SET_WATCHDOG_TIMER)CoreSetWatchdogTimer, // SetWatchdogTimer | |
(EFI_CONNECT_CONTROLLER)CoreConnectController, // ConnectController | |
(EFI_DISCONNECT_CONTROLLER)CoreDisconnectController, // DisconnectController | |
(EFI_OPEN_PROTOCOL)CoreOpenProtocol, // OpenProtocol | |
(EFI_CLOSE_PROTOCOL)CoreCloseProtocol, // CloseProtocol | |
(EFI_OPEN_PROTOCOL_INFORMATION)CoreOpenProtocolInformation, // OpenProtocolInformation | |
(EFI_PROTOCOLS_PER_HANDLE)CoreProtocolsPerHandle, // ProtocolsPerHandle | |
(EFI_LOCATE_HANDLE_BUFFER)CoreLocateHandleBuffer, // LocateHandleBuffer | |
(EFI_LOCATE_PROTOCOL)CoreLocateProtocol, // LocateProtocol | |
(EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES)CoreInstallMultipleProtocolInterfaces, // InstallMultipleProtocolInterfaces | |
(EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES)CoreUninstallMultipleProtocolInterfaces, // UninstallMultipleProtocolInterfaces | |
(EFI_CALCULATE_CRC32)CoreEfiNotAvailableYetArg3, // CalculateCrc32 | |
(EFI_COPY_MEM)CopyMem, // CopyMem | |
(EFI_SET_MEM)SetMem, // SetMem | |
(EFI_CREATE_EVENT_EX)CoreCreateEventEx // CreateEventEx | |
}; | |
EFI_DXE_SERVICES mDxeServices = { | |
{ | |
DXE_SERVICES_SIGNATURE, // Signature | |
DXE_SERVICES_REVISION, // Revision | |
sizeof (DXE_SERVICES), // HeaderSize | |
0, // CRC32 | |
0 // Reserved | |
}, | |
(EFI_ADD_MEMORY_SPACE)CoreAddMemorySpace, // AddMemorySpace | |
(EFI_ALLOCATE_MEMORY_SPACE)CoreAllocateMemorySpace, // AllocateMemorySpace | |
(EFI_FREE_MEMORY_SPACE)CoreFreeMemorySpace, // FreeMemorySpace | |
(EFI_REMOVE_MEMORY_SPACE)CoreRemoveMemorySpace, // RemoveMemorySpace | |
(EFI_GET_MEMORY_SPACE_DESCRIPTOR)CoreGetMemorySpaceDescriptor, // GetMemorySpaceDescriptor | |
(EFI_SET_MEMORY_SPACE_ATTRIBUTES)CoreSetMemorySpaceAttributes, // SetMemorySpaceAttributes | |
(EFI_GET_MEMORY_SPACE_MAP)CoreGetMemorySpaceMap, // GetMemorySpaceMap | |
(EFI_ADD_IO_SPACE)CoreAddIoSpace, // AddIoSpace | |
(EFI_ALLOCATE_IO_SPACE)CoreAllocateIoSpace, // AllocateIoSpace | |
(EFI_FREE_IO_SPACE)CoreFreeIoSpace, // FreeIoSpace | |
(EFI_REMOVE_IO_SPACE)CoreRemoveIoSpace, // RemoveIoSpace | |
(EFI_GET_IO_SPACE_DESCRIPTOR)CoreGetIoSpaceDescriptor, // GetIoSpaceDescriptor | |
(EFI_GET_IO_SPACE_MAP)CoreGetIoSpaceMap, // GetIoSpaceMap | |
(EFI_DISPATCH)CoreDispatcher, // Dispatch | |
(EFI_SCHEDULE)CoreSchedule, // Schedule | |
(EFI_TRUST)CoreTrust, // Trust | |
(EFI_PROCESS_FIRMWARE_VOLUME)CoreProcessFirmwareVolume, // ProcessFirmwareVolume | |
(EFI_SET_MEMORY_SPACE_CAPABILITIES)CoreSetMemorySpaceCapabilities, // SetMemorySpaceCapabilities | |
}; | |
EFI_SYSTEM_TABLE mEfiSystemTableTemplate = { | |
{ | |
EFI_SYSTEM_TABLE_SIGNATURE, // Signature | |
EFI_SYSTEM_TABLE_REVISION, // Revision | |
sizeof (EFI_SYSTEM_TABLE), // HeaderSize | |
0, // CRC32 | |
0 // Reserved | |
}, | |
NULL, // FirmwareVendor | |
0, // FirmwareRevision | |
NULL, // ConsoleInHandle | |
NULL, // ConIn | |
NULL, // ConsoleOutHandle | |
NULL, // ConOut | |
NULL, // StandardErrorHandle | |
NULL, // StdErr | |
NULL, // RuntimeServices | |
&mBootServices, // BootServices | |
0, // NumberOfConfigurationTableEntries | |
NULL // ConfigurationTable | |
}; | |
EFI_RUNTIME_SERVICES mEfiRuntimeServicesTableTemplate = { | |
{ | |
EFI_RUNTIME_SERVICES_SIGNATURE, // Signature | |
EFI_RUNTIME_SERVICES_REVISION, // Revision | |
sizeof (EFI_RUNTIME_SERVICES), // HeaderSize | |
0, // CRC32 | |
0 // Reserved | |
}, | |
(EFI_GET_TIME)CoreEfiNotAvailableYetArg2, // GetTime | |
(EFI_SET_TIME)CoreEfiNotAvailableYetArg1, // SetTime | |
(EFI_GET_WAKEUP_TIME)CoreEfiNotAvailableYetArg3, // GetWakeupTime | |
(EFI_SET_WAKEUP_TIME)CoreEfiNotAvailableYetArg2, // SetWakeupTime | |
(EFI_SET_VIRTUAL_ADDRESS_MAP)CoreEfiNotAvailableYetArg4, // SetVirtualAddressMap | |
(EFI_CONVERT_POINTER)CoreEfiNotAvailableYetArg2, // ConvertPointer | |
(EFI_GET_VARIABLE)CoreEfiNotAvailableYetArg5, // GetVariable | |
(EFI_GET_NEXT_VARIABLE_NAME)CoreEfiNotAvailableYetArg3, // GetNextVariableName | |
(EFI_SET_VARIABLE)CoreEfiNotAvailableYetArg5, // SetVariable | |
(EFI_GET_NEXT_HIGH_MONO_COUNT)CoreEfiNotAvailableYetArg1, // GetNextHighMonotonicCount | |
(EFI_RESET_SYSTEM)CoreEfiNotAvailableYetArg4, // ResetSystem | |
(EFI_UPDATE_CAPSULE)CoreEfiNotAvailableYetArg3, // UpdateCapsule | |
(EFI_QUERY_CAPSULE_CAPABILITIES)CoreEfiNotAvailableYetArg4, // QueryCapsuleCapabilities | |
(EFI_QUERY_VARIABLE_INFO)CoreEfiNotAvailableYetArg4 // QueryVariableInfo | |
}; | |
EFI_RUNTIME_ARCH_PROTOCOL gRuntimeTemplate = { | |
INITIALIZE_LIST_HEAD_VARIABLE (gRuntimeTemplate.ImageHead), | |
INITIALIZE_LIST_HEAD_VARIABLE (gRuntimeTemplate.EventHead), | |
// | |
// Make sure Size != sizeof (EFI_MEMORY_DESCRIPTOR). This will | |
// prevent people from having pointer math bugs in their code. | |
// now you have to use *DescriptorSize to make things work. | |
// | |
sizeof (EFI_MEMORY_DESCRIPTOR) + sizeof (UINT64) - (sizeof (EFI_MEMORY_DESCRIPTOR) % sizeof (UINT64)), | |
EFI_MEMORY_DESCRIPTOR_VERSION, | |
0, | |
NULL, | |
NULL, | |
FALSE, | |
FALSE | |
}; | |
EFI_RUNTIME_ARCH_PROTOCOL *gRuntime = &gRuntimeTemplate; | |
// | |
// DXE Core Global Variables for the EFI System Table, Boot Services Table, | |
// DXE Services Table, and Runtime Services Table | |
// | |
EFI_DXE_SERVICES *gDxeCoreDS = &mDxeServices; | |
EFI_SYSTEM_TABLE *gDxeCoreST = NULL; | |
// | |
// For debug initialize gDxeCoreRT to template. gDxeCoreRT must be allocated from RT memory | |
// but gDxeCoreRT is used for ASSERT () and DEBUG () type macros so lets give it | |
// a value that will not cause debug infrastructure to crash early on. | |
// | |
EFI_RUNTIME_SERVICES *gDxeCoreRT = &mEfiRuntimeServicesTableTemplate; | |
EFI_HANDLE gDxeCoreImageHandle = NULL; | |
BOOLEAN gMemoryMapTerminated = FALSE; | |
// | |
// EFI Decompress Protocol | |
// | |
EFI_DECOMPRESS_PROTOCOL gEfiDecompress = { | |
DxeMainUefiDecompressGetInfo, | |
DxeMainUefiDecompress | |
}; | |
// | |
// For Loading modules at fixed address feature, the configuration table is to cache the top address below which to load | |
// Runtime code&boot time code | |
// | |
GLOBAL_REMOVE_IF_UNREFERENCED EFI_LOAD_FIXED_ADDRESS_CONFIGURATION_TABLE gLoadModuleAtFixAddressConfigurationTable = { 0, 0 }; | |
// Main entry point to the DXE Core | |
// | |
/** | |
Main entry point to DXE Core. | |
@param HobStart Pointer to the beginning of the HOB List from PEI. | |
@return This function should never return. | |
**/ | |
VOID | |
EFIAPI | |
DxeMain ( | |
IN VOID *HobStart | |
) | |
{ | |
EFI_STATUS Status; | |
EFI_PHYSICAL_ADDRESS MemoryBaseAddress; | |
UINT64 MemoryLength; | |
PE_COFF_LOADER_IMAGE_CONTEXT ImageContext; | |
UINTN Index; | |
EFI_HOB_GUID_TYPE *GuidHob; | |
EFI_VECTOR_HANDOFF_INFO *VectorInfoList; | |
EFI_VECTOR_HANDOFF_INFO *VectorInfo; | |
VOID *EntryPoint; | |
// | |
// Setup the default exception handlers | |
// | |
VectorInfoList = NULL; | |
GuidHob = GetNextGuidHob (&gEfiVectorHandoffInfoPpiGuid, HobStart); | |
if (GuidHob != NULL) { | |
VectorInfoList = (EFI_VECTOR_HANDOFF_INFO *)(GET_GUID_HOB_DATA (GuidHob)); | |
} | |
Status = InitializeCpuExceptionHandlers (VectorInfoList); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Setup Stack Guard | |
// | |
if (PcdGetBool (PcdCpuStackGuard)) { | |
Status = InitializeSeparateExceptionStacks (NULL, NULL); | |
ASSERT_EFI_ERROR (Status); | |
} | |
// | |
// Initialize Debug Agent to support source level debug in DXE phase | |
// | |
InitializeDebugAgent (DEBUG_AGENT_INIT_DXE_CORE, HobStart, NULL); | |
// | |
// Initialize Memory Services | |
// | |
CoreInitializeMemoryServices (&HobStart, &MemoryBaseAddress, &MemoryLength); | |
MemoryProfileInit (HobStart); | |
// | |
// Allocate the EFI System Table and EFI Runtime Service Table from EfiRuntimeServicesData | |
// Use the templates to initialize the contents of the EFI System Table and EFI Runtime Services Table | |
// | |
gDxeCoreST = AllocateRuntimeCopyPool (sizeof (EFI_SYSTEM_TABLE), &mEfiSystemTableTemplate); | |
ASSERT (gDxeCoreST != NULL); | |
gDxeCoreRT = AllocateRuntimeCopyPool (sizeof (EFI_RUNTIME_SERVICES), &mEfiRuntimeServicesTableTemplate); | |
ASSERT (gDxeCoreRT != NULL); | |
gDxeCoreST->RuntimeServices = gDxeCoreRT; | |
// | |
// Start the Image Services. | |
// | |
Status = CoreInitializeImageServices (HobStart); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Initialize the Global Coherency Domain Services | |
// | |
Status = CoreInitializeGcdServices (&HobStart, MemoryBaseAddress, MemoryLength); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Call constructor for all libraries | |
// | |
ProcessLibraryConstructorList (gDxeCoreImageHandle, gDxeCoreST); | |
PERF_CROSSMODULE_END ("PEI"); | |
PERF_CROSSMODULE_BEGIN ("DXE"); | |
// | |
// Log MemoryBaseAddress and MemoryLength again (from | |
// CoreInitializeMemoryServices()), now that library constructors have | |
// executed. | |
// | |
DEBUG (( | |
DEBUG_INFO, | |
"%a: MemoryBaseAddress=0x%Lx MemoryLength=0x%Lx\n", | |
__func__, | |
MemoryBaseAddress, | |
MemoryLength | |
)); | |
// | |
// Report DXE Core image information to the PE/COFF Extra Action Library | |
// | |
ZeroMem (&ImageContext, sizeof (ImageContext)); | |
ImageContext.ImageAddress = (EFI_PHYSICAL_ADDRESS)(UINTN)gDxeCoreLoadedImage->ImageBase; | |
ImageContext.PdbPointer = PeCoffLoaderGetPdbPointer ((VOID *)(UINTN)ImageContext.ImageAddress); | |
ImageContext.SizeOfHeaders = PeCoffGetSizeOfHeaders ((VOID *)(UINTN)ImageContext.ImageAddress); | |
Status = PeCoffLoaderGetEntryPoint ((VOID *)(UINTN)ImageContext.ImageAddress, &EntryPoint); | |
if (Status == EFI_SUCCESS) { | |
ImageContext.EntryPoint = (EFI_PHYSICAL_ADDRESS)(UINTN)EntryPoint; | |
} | |
ImageContext.Handle = (VOID *)(UINTN)gDxeCoreLoadedImage->ImageBase; | |
ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory; | |
PeCoffLoaderRelocateImageExtraAction (&ImageContext); | |
// | |
// Install the DXE Services Table into the EFI System Tables's Configuration Table | |
// | |
Status = CoreInstallConfigurationTable (&gEfiDxeServicesTableGuid, gDxeCoreDS); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Install the HOB List into the EFI System Tables's Configuration Table | |
// | |
Status = CoreInstallConfigurationTable (&gEfiHobListGuid, HobStart); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Install Memory Type Information Table into the EFI System Tables's Configuration Table | |
// | |
Status = CoreInstallConfigurationTable (&gEfiMemoryTypeInformationGuid, &gMemoryTypeInformation); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// If Loading modules At fixed address feature is enabled, install Load moduels at fixed address | |
// Configuration Table so that user could easily to retrieve the top address to load Dxe and PEI | |
// Code and Tseg base to load SMM driver. | |
// | |
if (PcdGet64 (PcdLoadModuleAtFixAddressEnable) != 0) { | |
Status = CoreInstallConfigurationTable (&gLoadFixedAddressConfigurationTableGuid, &gLoadModuleAtFixAddressConfigurationTable); | |
ASSERT_EFI_ERROR (Status); | |
} | |
// | |
// Report Status Code here for DXE_ENTRY_POINT once it is available | |
// | |
REPORT_STATUS_CODE ( | |
EFI_PROGRESS_CODE, | |
(EFI_SOFTWARE_DXE_CORE | EFI_SW_DXE_CORE_PC_ENTRY_POINT) | |
); | |
// | |
// Create the aligned system table pointer structure that is used by external | |
// debuggers to locate the system table... Also, install debug image info | |
// configuration table. | |
// | |
CoreInitializeDebugImageInfoTable (); | |
CoreNewDebugImageInfoEntry ( | |
EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL, | |
gDxeCoreLoadedImage, | |
gDxeCoreImageHandle | |
); | |
DEBUG ((DEBUG_INFO | DEBUG_LOAD, "HOBLIST address in DXE = 0x%p\n", HobStart)); | |
DEBUG_CODE_BEGIN (); | |
EFI_PEI_HOB_POINTERS Hob; | |
for (Hob.Raw = HobStart; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) { | |
if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_MEMORY_ALLOCATION) { | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
"Memory Allocation 0x%08x 0x%0lx - 0x%0lx\n", \ | |
Hob.MemoryAllocation->AllocDescriptor.MemoryType, \ | |
Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress, \ | |
Hob.MemoryAllocation->AllocDescriptor.MemoryBaseAddress + Hob.MemoryAllocation->AllocDescriptor.MemoryLength - 1 | |
)); | |
} | |
} | |
for (Hob.Raw = HobStart; !END_OF_HOB_LIST (Hob); Hob.Raw = GET_NEXT_HOB (Hob)) { | |
if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV) { | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
"FV Hob 0x%0lx - 0x%0lx\n", | |
Hob.FirmwareVolume->BaseAddress, | |
Hob.FirmwareVolume->BaseAddress + Hob.FirmwareVolume->Length - 1 | |
)); | |
} else if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV2) { | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
"FV2 Hob 0x%0lx - 0x%0lx\n", | |
Hob.FirmwareVolume2->BaseAddress, | |
Hob.FirmwareVolume2->BaseAddress + Hob.FirmwareVolume2->Length - 1 | |
)); | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
" %g - %g\n", | |
&Hob.FirmwareVolume2->FvName, | |
&Hob.FirmwareVolume2->FileName | |
)); | |
} else if (GET_HOB_TYPE (Hob) == EFI_HOB_TYPE_FV3) { | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
"FV3 Hob 0x%0lx - 0x%0lx - 0x%x - 0x%x\n", | |
Hob.FirmwareVolume3->BaseAddress, | |
Hob.FirmwareVolume3->BaseAddress + Hob.FirmwareVolume3->Length - 1, | |
Hob.FirmwareVolume3->AuthenticationStatus, | |
Hob.FirmwareVolume3->ExtractedFv | |
)); | |
if (Hob.FirmwareVolume3->ExtractedFv) { | |
DEBUG (( | |
DEBUG_INFO | DEBUG_LOAD, | |
" %g - %g\n", | |
&Hob.FirmwareVolume3->FvName, | |
&Hob.FirmwareVolume3->FileName | |
)); | |
} | |
} | |
} | |
DEBUG_CODE_END (); | |
// | |
// Initialize the Event Services | |
// | |
Status = CoreInitializeEventServices (); | |
ASSERT_EFI_ERROR (Status); | |
MemoryProfileInstallProtocol (); | |
CoreInitializeMemoryAttributesTable (); | |
CoreInitializeMemoryProtection (); | |
// | |
// Get persisted vector hand-off info from GUIDeed HOB again due to HobStart may be updated, | |
// and install configuration table | |
// | |
GuidHob = GetNextGuidHob (&gEfiVectorHandoffInfoPpiGuid, HobStart); | |
if (GuidHob != NULL) { | |
VectorInfoList = (EFI_VECTOR_HANDOFF_INFO *)(GET_GUID_HOB_DATA (GuidHob)); | |
VectorInfo = VectorInfoList; | |
Index = 1; | |
while (VectorInfo->Attribute != EFI_VECTOR_HANDOFF_LAST_ENTRY) { | |
VectorInfo++; | |
Index++; | |
} | |
VectorInfo = AllocateCopyPool (sizeof (EFI_VECTOR_HANDOFF_INFO) * Index, (VOID *)VectorInfoList); | |
ASSERT (VectorInfo != NULL); | |
Status = CoreInstallConfigurationTable (&gEfiVectorHandoffTableGuid, (VOID *)VectorInfo); | |
ASSERT_EFI_ERROR (Status); | |
} | |
// | |
// Get the Protocols that were passed in from PEI to DXE through GUIDed HOBs | |
// | |
// These Protocols are not architectural. This implementation is sharing code between | |
// PEI and DXE in order to save FLASH space. These Protocols could also be implemented | |
// as part of the DXE Core. However, that would also require the DXE Core to be ported | |
// each time a different CPU is used, a different Decompression algorithm is used, or a | |
// different Image type is used. By placing these Protocols in PEI, the DXE Core remains | |
// generic, and only PEI and the Arch Protocols need to be ported from Platform to Platform, | |
// and from CPU to CPU. | |
// | |
// | |
// Publish the EFI, Tiano, and Custom Decompress protocols for use by other DXE components | |
// | |
Status = CoreInstallMultipleProtocolInterfaces ( | |
&mDecompressHandle, | |
&gEfiDecompressProtocolGuid, | |
&gEfiDecompress, | |
NULL | |
); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Register for the GUIDs of the Architectural Protocols, so the rest of the | |
// EFI Boot Services and EFI Runtime Services tables can be filled in. | |
// Also register for the GUIDs of optional protocols. | |
// | |
CoreNotifyOnProtocolInstallation (); | |
// | |
// Produce Firmware Volume Protocols, one for each FV in the HOB list. | |
// | |
Status = FwVolBlockDriverInit (gDxeCoreImageHandle, gDxeCoreST); | |
ASSERT_EFI_ERROR (Status); | |
Status = FwVolDriverInit (gDxeCoreImageHandle, gDxeCoreST); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Produce the Section Extraction Protocol | |
// | |
Status = InitializeSectionExtraction (gDxeCoreImageHandle, gDxeCoreST); | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Initialize the DXE Dispatcher | |
// | |
CoreInitializeDispatcher (); | |
// | |
// Invoke the DXE Dispatcher | |
// | |
CoreDispatcher (); | |
// | |
// Display Architectural protocols that were not loaded if this is DEBUG build | |
// | |
DEBUG_CODE_BEGIN (); | |
CoreDisplayMissingArchProtocols (); | |
DEBUG_CODE_END (); | |
// | |
// Display any drivers that were not dispatched because dependency expression | |
// evaluated to false if this is a debug build | |
// | |
DEBUG_CODE_BEGIN (); | |
CoreDisplayDiscoveredNotDispatched (); | |
DEBUG_CODE_END (); | |
// | |
// Assert if the Architectural Protocols are not present. | |
// | |
Status = CoreAllEfiServicesAvailable (); | |
if (EFI_ERROR (Status)) { | |
// | |
// Report Status code that some Architectural Protocols are not present. | |
// | |
REPORT_STATUS_CODE ( | |
EFI_ERROR_CODE | EFI_ERROR_MAJOR, | |
(EFI_SOFTWARE_DXE_CORE | EFI_SW_DXE_CORE_EC_NO_ARCH) | |
); | |
} | |
ASSERT_EFI_ERROR (Status); | |
// | |
// Report Status code before transfer control to BDS | |
// | |
REPORT_STATUS_CODE ( | |
EFI_PROGRESS_CODE, | |
(EFI_SOFTWARE_DXE_CORE | EFI_SW_DXE_CORE_PC_HANDOFF_TO_NEXT) | |
); | |
// | |
// Transfer control to the BDS Architectural Protocol | |
// | |
gBds->Entry (gBds); | |
// | |
// BDS should never return | |
// | |
ASSERT (FALSE); | |
CpuDeadLoop (); | |
UNREACHABLE (); | |
} | |
/** | |
Place holder function until all the Boot Services and Runtime Services are | |
available. | |
@param Arg1 Undefined | |
@return EFI_NOT_AVAILABLE_YET | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreEfiNotAvailableYetArg1 ( | |
UINTN Arg1 | |
) | |
{ | |
// | |
// This function should never be executed. If it does, then the architectural protocols | |
// have not been designed correctly. The CpuBreakpoint () is commented out for now until the | |
// DXE Core and all the Architectural Protocols are complete. | |
// | |
return EFI_NOT_AVAILABLE_YET; | |
} | |
/** | |
Place holder function until all the Boot Services and Runtime Services are available. | |
@param Arg1 Undefined | |
@param Arg2 Undefined | |
@return EFI_NOT_AVAILABLE_YET | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreEfiNotAvailableYetArg2 ( | |
UINTN Arg1, | |
UINTN Arg2 | |
) | |
{ | |
// | |
// This function should never be executed. If it does, then the architectural protocols | |
// have not been designed correctly. The CpuBreakpoint () is commented out for now until the | |
// DXE Core and all the Architectural Protocols are complete. | |
// | |
return EFI_NOT_AVAILABLE_YET; | |
} | |
/** | |
Place holder function until all the Boot Services and Runtime Services are available. | |
@param Arg1 Undefined | |
@param Arg2 Undefined | |
@param Arg3 Undefined | |
@return EFI_NOT_AVAILABLE_YET | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreEfiNotAvailableYetArg3 ( | |
UINTN Arg1, | |
UINTN Arg2, | |
UINTN Arg3 | |
) | |
{ | |
// | |
// This function should never be executed. If it does, then the architectural protocols | |
// have not been designed correctly. The CpuBreakpoint () is commented out for now until the | |
// DXE Core and all the Architectural Protocols are complete. | |
// | |
return EFI_NOT_AVAILABLE_YET; | |
} | |
/** | |
Place holder function until all the Boot Services and Runtime Services are available. | |
@param Arg1 Undefined | |
@param Arg2 Undefined | |
@param Arg3 Undefined | |
@param Arg4 Undefined | |
@return EFI_NOT_AVAILABLE_YET | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreEfiNotAvailableYetArg4 ( | |
UINTN Arg1, | |
UINTN Arg2, | |
UINTN Arg3, | |
UINTN Arg4 | |
) | |
{ | |
// | |
// This function should never be executed. If it does, then the architectural protocols | |
// have not been designed correctly. The CpuBreakpoint () is commented out for now until the | |
// DXE Core and all the Architectural Protocols are complete. | |
// | |
return EFI_NOT_AVAILABLE_YET; | |
} | |
/** | |
Place holder function until all the Boot Services and Runtime Services are available. | |
@param Arg1 Undefined | |
@param Arg2 Undefined | |
@param Arg3 Undefined | |
@param Arg4 Undefined | |
@param Arg5 Undefined | |
@return EFI_NOT_AVAILABLE_YET | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreEfiNotAvailableYetArg5 ( | |
UINTN Arg1, | |
UINTN Arg2, | |
UINTN Arg3, | |
UINTN Arg4, | |
UINTN Arg5 | |
) | |
{ | |
// | |
// This function should never be executed. If it does, then the architectural protocols | |
// have not been designed correctly. The CpuBreakpoint () is commented out for now until the | |
// DXE Core and all the Architectural Protocols are complete. | |
// | |
return EFI_NOT_AVAILABLE_YET; | |
} | |
/** | |
Calcualte the 32-bit CRC in a EFI table using the service provided by the | |
gRuntime service. | |
@param Hdr Pointer to an EFI standard header | |
**/ | |
VOID | |
CalculateEfiHdrCrc ( | |
IN OUT EFI_TABLE_HEADER *Hdr | |
) | |
{ | |
UINT32 Crc; | |
Hdr->CRC32 = 0; | |
// | |
// If gBS->CalculateCrce32 () == CoreEfiNotAvailableYet () then | |
// Crc will come back as zero if we set it to zero here | |
// | |
Crc = 0; | |
gBS->CalculateCrc32 ((UINT8 *)Hdr, Hdr->HeaderSize, &Crc); | |
Hdr->CRC32 = Crc; | |
} | |
/** | |
Terminates all boot services. | |
@param ImageHandle Handle that identifies the exiting image. | |
@param MapKey Key to the latest memory map. | |
@retval EFI_SUCCESS Boot Services terminated | |
@retval EFI_INVALID_PARAMETER MapKey is incorrect. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
CoreExitBootServices ( | |
IN EFI_HANDLE ImageHandle, | |
IN UINTN MapKey | |
) | |
{ | |
EFI_STATUS Status; | |
// | |
// Notify other drivers of their last chance to use boot services | |
// before the memory map is terminated. | |
// | |
CoreNotifySignalList (&gEfiEventBeforeExitBootServicesGuid); | |
// | |
// Disable Timer | |
// | |
gTimer->SetTimerPeriod (gTimer, 0); | |
// | |
// Terminate memory services if the MapKey matches | |
// | |
Status = CoreTerminateMemoryMap (MapKey); | |
if (EFI_ERROR (Status)) { | |
// | |
// Notify other drivers that ExitBootServices fail | |
// | |
CoreNotifySignalList (&gEventExitBootServicesFailedGuid); | |
return Status; | |
} | |
gMemoryMapTerminated = TRUE; | |
// | |
// Notify other drivers that we are exiting boot services. | |
// | |
CoreNotifySignalList (&gEfiEventExitBootServicesGuid); | |
// | |
// Report that ExitBootServices() has been called | |
// | |
REPORT_STATUS_CODE ( | |
EFI_PROGRESS_CODE, | |
(EFI_SOFTWARE_EFI_BOOT_SERVICE | EFI_SW_BS_PC_EXIT_BOOT_SERVICES) | |
); | |
MemoryProtectionExitBootServicesCallback (); | |
// | |
// Disable interrupt of Debug timer. | |
// | |
SaveAndSetDebugTimerInterrupt (FALSE); | |
// | |
// Disable CPU Interrupts | |
// | |
gCpu->DisableInterrupt (gCpu); | |
// | |
// Clear the non-runtime values of the EFI System Table | |
// | |
gDxeCoreST->BootServices = NULL; | |
gDxeCoreST->ConIn = NULL; | |
gDxeCoreST->ConsoleInHandle = NULL; | |
gDxeCoreST->ConOut = NULL; | |
gDxeCoreST->ConsoleOutHandle = NULL; | |
gDxeCoreST->StdErr = NULL; | |
gDxeCoreST->StandardErrorHandle = NULL; | |
// | |
// Recompute the 32-bit CRC of the EFI System Table | |
// | |
CalculateEfiHdrCrc (&gDxeCoreST->Hdr); | |
// | |
// Zero out the Boot Service Table | |
// | |
ZeroMem (gBS, sizeof (EFI_BOOT_SERVICES)); | |
gBS = NULL; | |
// | |
// Update the AtRuntime field in Runtiem AP. | |
// | |
gRuntime->AtRuntime = TRUE; | |
return Status; | |
} | |
/** | |
Given a compressed source buffer, this function retrieves the size of the | |
uncompressed buffer and the size of the scratch buffer required to decompress | |
the compressed source buffer. | |
The GetInfo() function retrieves the size of the uncompressed buffer and the | |
temporary scratch buffer required to decompress the buffer specified by Source | |
and SourceSize. If the size of the uncompressed buffer or the size of the | |
scratch buffer cannot be determined from the compressed data specified by | |
Source and SourceData, then EFI_INVALID_PARAMETER is returned. Otherwise, the | |
size of the uncompressed buffer is returned in DestinationSize, the size of | |
the scratch buffer is returned in ScratchSize, and EFI_SUCCESS is returned. | |
The GetInfo() function does not have scratch buffer available to perform a | |
thorough checking of the validity of the source data. It just retrieves the | |
"Original Size" field from the beginning bytes of the source data and output | |
it as DestinationSize. And ScratchSize is specific to the decompression | |
implementation. | |
@param This A pointer to the EFI_DECOMPRESS_PROTOCOL instance. | |
@param Source The source buffer containing the compressed data. | |
@param SourceSize The size, in bytes, of the source buffer. | |
@param DestinationSize A pointer to the size, in bytes, of the | |
uncompressed buffer that will be generated when the | |
compressed buffer specified by Source and | |
SourceSize is decompressed. | |
@param ScratchSize A pointer to the size, in bytes, of the scratch | |
buffer that is required to decompress the | |
compressed buffer specified by Source and | |
SourceSize. | |
@retval EFI_SUCCESS The size of the uncompressed data was returned in | |
DestinationSize and the size of the scratch buffer | |
was returned in ScratchSize. | |
@retval EFI_INVALID_PARAMETER The size of the uncompressed data or the size of | |
the scratch buffer cannot be determined from the | |
compressed data specified by Source and | |
SourceSize. | |
**/ | |
EFI_STATUS | |
EFIAPI | |
DxeMainUefiDecompressGetInfo ( | |
IN EFI_DECOMPRESS_PROTOCOL *This, | |
IN VOID *Source, | |
IN UINT32 SourceSize, | |
OUT UINT32 *DestinationSize, | |
OUT UINT32 *ScratchSize | |
) | |
{ | |
if ((Source == NULL) || (DestinationSize == NULL) || (ScratchSize == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
return UefiDecompressGetInfo (Source, SourceSize, DestinationSize, ScratchSize); | |
} | |
/** | |
Decompresses a compressed source buffer. | |
The Decompress() function extracts decompressed data to its original form. | |
This protocol is designed so that the decompression algorithm can be | |
implemented without using any memory services. As a result, the Decompress() | |
Function is not allowed to call AllocatePool() or AllocatePages() in its | |
implementation. It is the caller's responsibility to allocate and free the | |
Destination and Scratch buffers. | |
If the compressed source data specified by Source and SourceSize is | |
successfully decompressed into Destination, then EFI_SUCCESS is returned. If | |
the compressed source data specified by Source and SourceSize is not in a | |
valid compressed data format, then EFI_INVALID_PARAMETER is returned. | |
@param This A pointer to the EFI_DECOMPRESS_PROTOCOL instance. | |
@param Source The source buffer containing the compressed data. | |
@param SourceSize SourceSizeThe size of source data. | |
@param Destination On output, the destination buffer that contains | |
the uncompressed data. | |
@param DestinationSize The size of the destination buffer. The size of | |
the destination buffer needed is obtained from | |
EFI_DECOMPRESS_PROTOCOL.GetInfo(). | |
@param Scratch A temporary scratch buffer that is used to perform | |
the decompression. | |
@param ScratchSize The size of scratch buffer. The size of the | |
scratch buffer needed is obtained from GetInfo(). | |
@retval EFI_SUCCESS Decompression completed successfully, and the | |
uncompressed buffer is returned in Destination. | |
@retval EFI_INVALID_PARAMETER The source buffer specified by Source and | |
SourceSize is corrupted (not in a valid | |
compressed format). | |
**/ | |
EFI_STATUS | |
EFIAPI | |
DxeMainUefiDecompress ( | |
IN EFI_DECOMPRESS_PROTOCOL *This, | |
IN VOID *Source, | |
IN UINT32 SourceSize, | |
IN OUT VOID *Destination, | |
IN UINT32 DestinationSize, | |
IN OUT VOID *Scratch, | |
IN UINT32 ScratchSize | |
) | |
{ | |
EFI_STATUS Status; | |
UINT32 TestDestinationSize; | |
UINT32 TestScratchSize; | |
if ((Source == NULL) || (Destination == NULL) || (Scratch == NULL)) { | |
return EFI_INVALID_PARAMETER; | |
} | |
Status = UefiDecompressGetInfo (Source, SourceSize, &TestDestinationSize, &TestScratchSize); | |
if (EFI_ERROR (Status)) { | |
return Status; | |
} | |
if ((ScratchSize < TestScratchSize) || (DestinationSize < TestDestinationSize)) { | |
return RETURN_INVALID_PARAMETER; | |
} | |
return UefiDecompress (Source, Destination, Scratch); | |
} |