2 DXE Core Main Entry Point
4 Copyright (c) 2006 - 2016, 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
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.
18 // DXE Core Global Variables for Protocols from PEI
20 EFI_HANDLE mDecompressHandle
= NULL
;
23 // DXE Core globals for Architecture Protocols
25 EFI_SECURITY_ARCH_PROTOCOL
*gSecurity
= NULL
;
26 EFI_SECURITY2_ARCH_PROTOCOL
*gSecurity2
= NULL
;
27 EFI_CPU_ARCH_PROTOCOL
*gCpu
= NULL
;
28 EFI_METRONOME_ARCH_PROTOCOL
*gMetronome
= NULL
;
29 EFI_TIMER_ARCH_PROTOCOL
*gTimer
= NULL
;
30 EFI_BDS_ARCH_PROTOCOL
*gBds
= NULL
;
31 EFI_WATCHDOG_TIMER_ARCH_PROTOCOL
*gWatchdogTimer
= NULL
;
34 // DXE Core globals for optional protocol dependencies
36 EFI_SMM_BASE2_PROTOCOL
*gSmmBase2
= NULL
;
39 // DXE Core Global used to update core loaded image protocol handle
41 EFI_GUID
*gDxeCoreFileName
;
42 EFI_LOADED_IMAGE_PROTOCOL
*gDxeCoreLoadedImage
;
45 // DXE Core Module Variables
47 EFI_BOOT_SERVICES mBootServices
= {
49 EFI_BOOT_SERVICES_SIGNATURE
, // Signature
50 EFI_BOOT_SERVICES_REVISION
, // Revision
51 sizeof (EFI_BOOT_SERVICES
), // HeaderSize
55 (EFI_RAISE_TPL
) CoreRaiseTpl
, // RaiseTPL
56 (EFI_RESTORE_TPL
) CoreRestoreTpl
, // RestoreTPL
57 (EFI_ALLOCATE_PAGES
) CoreAllocatePages
, // AllocatePages
58 (EFI_FREE_PAGES
) CoreFreePages
, // FreePages
59 (EFI_GET_MEMORY_MAP
) CoreGetMemoryMap
, // GetMemoryMap
60 (EFI_ALLOCATE_POOL
) CoreAllocatePool
, // AllocatePool
61 (EFI_FREE_POOL
) CoreFreePool
, // FreePool
62 (EFI_CREATE_EVENT
) CoreCreateEvent
, // CreateEvent
63 (EFI_SET_TIMER
) CoreSetTimer
, // SetTimer
64 (EFI_WAIT_FOR_EVENT
) CoreWaitForEvent
, // WaitForEvent
65 (EFI_SIGNAL_EVENT
) CoreSignalEvent
, // SignalEvent
66 (EFI_CLOSE_EVENT
) CoreCloseEvent
, // CloseEvent
67 (EFI_CHECK_EVENT
) CoreCheckEvent
, // CheckEvent
68 (EFI_INSTALL_PROTOCOL_INTERFACE
) CoreInstallProtocolInterface
, // InstallProtocolInterface
69 (EFI_REINSTALL_PROTOCOL_INTERFACE
) CoreReinstallProtocolInterface
, // ReinstallProtocolInterface
70 (EFI_UNINSTALL_PROTOCOL_INTERFACE
) CoreUninstallProtocolInterface
, // UninstallProtocolInterface
71 (EFI_HANDLE_PROTOCOL
) CoreHandleProtocol
, // HandleProtocol
72 (VOID
*) NULL
, // Reserved
73 (EFI_REGISTER_PROTOCOL_NOTIFY
) CoreRegisterProtocolNotify
, // RegisterProtocolNotify
74 (EFI_LOCATE_HANDLE
) CoreLocateHandle
, // LocateHandle
75 (EFI_LOCATE_DEVICE_PATH
) CoreLocateDevicePath
, // LocateDevicePath
76 (EFI_INSTALL_CONFIGURATION_TABLE
) CoreInstallConfigurationTable
, // InstallConfigurationTable
77 (EFI_IMAGE_LOAD
) CoreLoadImage
, // LoadImage
78 (EFI_IMAGE_START
) CoreStartImage
, // StartImage
79 (EFI_EXIT
) CoreExit
, // Exit
80 (EFI_IMAGE_UNLOAD
) CoreUnloadImage
, // UnloadImage
81 (EFI_EXIT_BOOT_SERVICES
) CoreExitBootServices
, // ExitBootServices
82 (EFI_GET_NEXT_MONOTONIC_COUNT
) CoreEfiNotAvailableYetArg1
, // GetNextMonotonicCount
83 (EFI_STALL
) CoreStall
, // Stall
84 (EFI_SET_WATCHDOG_TIMER
) CoreSetWatchdogTimer
, // SetWatchdogTimer
85 (EFI_CONNECT_CONTROLLER
) CoreConnectController
, // ConnectController
86 (EFI_DISCONNECT_CONTROLLER
) CoreDisconnectController
, // DisconnectController
87 (EFI_OPEN_PROTOCOL
) CoreOpenProtocol
, // OpenProtocol
88 (EFI_CLOSE_PROTOCOL
) CoreCloseProtocol
, // CloseProtocol
89 (EFI_OPEN_PROTOCOL_INFORMATION
) CoreOpenProtocolInformation
, // OpenProtocolInformation
90 (EFI_PROTOCOLS_PER_HANDLE
) CoreProtocolsPerHandle
, // ProtocolsPerHandle
91 (EFI_LOCATE_HANDLE_BUFFER
) CoreLocateHandleBuffer
, // LocateHandleBuffer
92 (EFI_LOCATE_PROTOCOL
) CoreLocateProtocol
, // LocateProtocol
93 (EFI_INSTALL_MULTIPLE_PROTOCOL_INTERFACES
) CoreInstallMultipleProtocolInterfaces
, // InstallMultipleProtocolInterfaces
94 (EFI_UNINSTALL_MULTIPLE_PROTOCOL_INTERFACES
) CoreUninstallMultipleProtocolInterfaces
, // UninstallMultipleProtocolInterfaces
95 (EFI_CALCULATE_CRC32
) CoreEfiNotAvailableYetArg3
, // CalculateCrc32
96 (EFI_COPY_MEM
) CopyMem
, // CopyMem
97 (EFI_SET_MEM
) SetMem
, // SetMem
98 (EFI_CREATE_EVENT_EX
) CoreCreateEventEx
// CreateEventEx
101 EFI_DXE_SERVICES mDxeServices
= {
103 DXE_SERVICES_SIGNATURE
, // Signature
104 DXE_SERVICES_REVISION
, // Revision
105 sizeof (DXE_SERVICES
), // HeaderSize
109 (EFI_ADD_MEMORY_SPACE
) CoreAddMemorySpace
, // AddMemorySpace
110 (EFI_ALLOCATE_MEMORY_SPACE
) CoreAllocateMemorySpace
, // AllocateMemorySpace
111 (EFI_FREE_MEMORY_SPACE
) CoreFreeMemorySpace
, // FreeMemorySpace
112 (EFI_REMOVE_MEMORY_SPACE
) CoreRemoveMemorySpace
, // RemoveMemorySpace
113 (EFI_GET_MEMORY_SPACE_DESCRIPTOR
) CoreGetMemorySpaceDescriptor
, // GetMemorySpaceDescriptor
114 (EFI_SET_MEMORY_SPACE_ATTRIBUTES
) CoreSetMemorySpaceAttributes
, // SetMemorySpaceAttributes
115 (EFI_GET_MEMORY_SPACE_MAP
) CoreGetMemorySpaceMap
, // GetMemorySpaceMap
116 (EFI_ADD_IO_SPACE
) CoreAddIoSpace
, // AddIoSpace
117 (EFI_ALLOCATE_IO_SPACE
) CoreAllocateIoSpace
, // AllocateIoSpace
118 (EFI_FREE_IO_SPACE
) CoreFreeIoSpace
, // FreeIoSpace
119 (EFI_REMOVE_IO_SPACE
) CoreRemoveIoSpace
, // RemoveIoSpace
120 (EFI_GET_IO_SPACE_DESCRIPTOR
) CoreGetIoSpaceDescriptor
, // GetIoSpaceDescriptor
121 (EFI_GET_IO_SPACE_MAP
) CoreGetIoSpaceMap
, // GetIoSpaceMap
122 (EFI_DISPATCH
) CoreDispatcher
, // Dispatch
123 (EFI_SCHEDULE
) CoreSchedule
, // Schedule
124 (EFI_TRUST
) CoreTrust
, // Trust
125 (EFI_PROCESS_FIRMWARE_VOLUME
) CoreProcessFirmwareVolume
, // ProcessFirmwareVolume
126 (EFI_SET_MEMORY_SPACE_CAPABILITIES
)CoreSetMemorySpaceCapabilities
, // SetMemorySpaceCapabilities
129 EFI_SYSTEM_TABLE mEfiSystemTableTemplate
= {
131 EFI_SYSTEM_TABLE_SIGNATURE
, // Signature
132 EFI_SYSTEM_TABLE_REVISION
, // Revision
133 sizeof (EFI_SYSTEM_TABLE
), // HeaderSize
137 NULL
, // FirmwareVendor
138 0, // FirmwareRevision
139 NULL
, // ConsoleInHandle
141 NULL
, // ConsoleOutHandle
143 NULL
, // StandardErrorHandle
145 NULL
, // RuntimeServices
146 &mBootServices
, // BootServices
147 0, // NumberOfConfigurationTableEntries
148 NULL
// ConfigurationTable
151 EFI_RUNTIME_SERVICES mEfiRuntimeServicesTableTemplate
= {
153 EFI_RUNTIME_SERVICES_SIGNATURE
, // Signature
154 EFI_RUNTIME_SERVICES_REVISION
, // Revision
155 sizeof (EFI_RUNTIME_SERVICES
), // HeaderSize
159 (EFI_GET_TIME
) CoreEfiNotAvailableYetArg2
, // GetTime
160 (EFI_SET_TIME
) CoreEfiNotAvailableYetArg1
, // SetTime
161 (EFI_GET_WAKEUP_TIME
) CoreEfiNotAvailableYetArg3
, // GetWakeupTime
162 (EFI_SET_WAKEUP_TIME
) CoreEfiNotAvailableYetArg2
, // SetWakeupTime
163 (EFI_SET_VIRTUAL_ADDRESS_MAP
) CoreEfiNotAvailableYetArg4
, // SetVirtualAddressMap
164 (EFI_CONVERT_POINTER
) CoreEfiNotAvailableYetArg2
, // ConvertPointer
165 (EFI_GET_VARIABLE
) CoreEfiNotAvailableYetArg5
, // GetVariable
166 (EFI_GET_NEXT_VARIABLE_NAME
) CoreEfiNotAvailableYetArg3
, // GetNextVariableName
167 (EFI_SET_VARIABLE
) CoreEfiNotAvailableYetArg5
, // SetVariable
168 (EFI_GET_NEXT_HIGH_MONO_COUNT
) CoreEfiNotAvailableYetArg1
, // GetNextHighMonotonicCount
169 (EFI_RESET_SYSTEM
) CoreEfiNotAvailableYetArg4
, // ResetSystem
170 (EFI_UPDATE_CAPSULE
) CoreEfiNotAvailableYetArg3
, // UpdateCapsule
171 (EFI_QUERY_CAPSULE_CAPABILITIES
) CoreEfiNotAvailableYetArg4
, // QueryCapsuleCapabilities
172 (EFI_QUERY_VARIABLE_INFO
) CoreEfiNotAvailableYetArg4
// QueryVariableInfo
175 EFI_RUNTIME_ARCH_PROTOCOL gRuntimeTemplate
= {
176 INITIALIZE_LIST_HEAD_VARIABLE (gRuntimeTemplate
.ImageHead
),
177 INITIALIZE_LIST_HEAD_VARIABLE (gRuntimeTemplate
.EventHead
),
180 // Make sure Size != sizeof (EFI_MEMORY_DESCRIPTOR). This will
181 // prevent people from having pointer math bugs in their code.
182 // now you have to use *DescriptorSize to make things work.
184 sizeof (EFI_MEMORY_DESCRIPTOR
) + sizeof (UINT64
) - (sizeof (EFI_MEMORY_DESCRIPTOR
) % sizeof (UINT64
)),
185 EFI_MEMORY_DESCRIPTOR_VERSION
,
193 EFI_RUNTIME_ARCH_PROTOCOL
*gRuntime
= &gRuntimeTemplate
;
196 // DXE Core Global Variables for the EFI System Table, Boot Services Table,
197 // DXE Services Table, and Runtime Services Table
199 EFI_DXE_SERVICES
*gDxeCoreDS
= &mDxeServices
;
200 EFI_SYSTEM_TABLE
*gDxeCoreST
= NULL
;
203 // For debug initialize gDxeCoreRT to template. gDxeCoreRT must be allocated from RT memory
204 // but gDxeCoreRT is used for ASSERT () and DEBUG () type macros so lets give it
205 // a value that will not cause debug infrastructure to crash early on.
207 EFI_RUNTIME_SERVICES
*gDxeCoreRT
= &mEfiRuntimeServicesTableTemplate
;
208 EFI_HANDLE gDxeCoreImageHandle
= NULL
;
212 // EFI Decompress Protocol
214 EFI_DECOMPRESS_PROTOCOL gEfiDecompress
= {
215 DxeMainUefiDecompressGetInfo
,
216 DxeMainUefiDecompress
220 // For Loading modules at fixed address feature, the configuration table is to cache the top address below which to load
221 // Runtime code&boot time code
223 GLOBAL_REMOVE_IF_UNREFERENCED EFI_LOAD_FIXED_ADDRESS_CONFIGURATION_TABLE gLoadModuleAtFixAddressConfigurationTable
= {0, 0};
225 // Main entry point to the DXE Core
229 Main entry point to DXE Core.
231 @param HobStart Pointer to the beginning of the HOB List from PEI.
233 @return This function should never return.
243 EFI_PHYSICAL_ADDRESS MemoryBaseAddress
;
245 PE_COFF_LOADER_IMAGE_CONTEXT ImageContext
;
247 EFI_HOB_GUID_TYPE
*GuidHob
;
248 EFI_VECTOR_HANDOFF_INFO
*VectorInfoList
;
249 EFI_VECTOR_HANDOFF_INFO
*VectorInfo
;
253 // Setup the default exception handlers
255 VectorInfoList
= NULL
;
256 GuidHob
= GetNextGuidHob (&gEfiVectorHandoffInfoPpiGuid
, HobStart
);
257 if (GuidHob
!= NULL
) {
258 VectorInfoList
= (EFI_VECTOR_HANDOFF_INFO
*) (GET_GUID_HOB_DATA(GuidHob
));
260 Status
= InitializeCpuExceptionHandlers (VectorInfoList
);
261 ASSERT_EFI_ERROR (Status
);
264 // Initialize Debug Agent to support source level debug in DXE phase
266 InitializeDebugAgent (DEBUG_AGENT_INIT_DXE_CORE
, HobStart
, NULL
);
269 // Initialize Memory Services
271 CoreInitializeMemoryServices (&HobStart
, &MemoryBaseAddress
, &MemoryLength
);
273 MemoryProfileInit (HobStart
);
276 // Allocate the EFI System Table and EFI Runtime Service Table from EfiRuntimeServicesData
277 // Use the templates to initialize the contents of the EFI System Table and EFI Runtime Services Table
279 gDxeCoreST
= AllocateRuntimeCopyPool (sizeof (EFI_SYSTEM_TABLE
), &mEfiSystemTableTemplate
);
280 ASSERT (gDxeCoreST
!= NULL
);
282 gDxeCoreRT
= AllocateRuntimeCopyPool (sizeof (EFI_RUNTIME_SERVICES
), &mEfiRuntimeServicesTableTemplate
);
283 ASSERT (gDxeCoreRT
!= NULL
);
285 gDxeCoreST
->RuntimeServices
= gDxeCoreRT
;
288 // Start the Image Services.
290 Status
= CoreInitializeImageServices (HobStart
);
291 ASSERT_EFI_ERROR (Status
);
294 // Initialize the Global Coherency Domain Services
296 Status
= CoreInitializeGcdServices (&HobStart
, MemoryBaseAddress
, MemoryLength
);
297 ASSERT_EFI_ERROR (Status
);
300 // Call constructor for all libraries
302 ProcessLibraryConstructorList (gDxeCoreImageHandle
, gDxeCoreST
);
303 PERF_END (NULL
,"PEI", NULL
, 0) ;
304 PERF_START (NULL
,"DXE", NULL
, 0) ;
307 // Report DXE Core image information to the PE/COFF Extra Action Library
309 ZeroMem (&ImageContext
, sizeof (ImageContext
));
310 ImageContext
.ImageAddress
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)gDxeCoreLoadedImage
->ImageBase
;
311 ImageContext
.PdbPointer
= PeCoffLoaderGetPdbPointer ((VOID
*)(UINTN
)ImageContext
.ImageAddress
);
312 ImageContext
.SizeOfHeaders
= PeCoffGetSizeOfHeaders ((VOID
*)(UINTN
)ImageContext
.ImageAddress
);
313 Status
= PeCoffLoaderGetEntryPoint ((VOID
*)(UINTN
)ImageContext
.ImageAddress
, &EntryPoint
);
314 if (Status
== EFI_SUCCESS
) {
315 ImageContext
.EntryPoint
= (EFI_PHYSICAL_ADDRESS
)(UINTN
)EntryPoint
;
317 PeCoffLoaderRelocateImageExtraAction (&ImageContext
);
320 // Install the DXE Services Table into the EFI System Tables's Configuration Table
322 Status
= CoreInstallConfigurationTable (&gEfiDxeServicesTableGuid
, gDxeCoreDS
);
323 ASSERT_EFI_ERROR (Status
);
326 // Install the HOB List into the EFI System Tables's Configuration Table
328 Status
= CoreInstallConfigurationTable (&gEfiHobListGuid
, HobStart
);
329 ASSERT_EFI_ERROR (Status
);
332 // Install Memory Type Information Table into the EFI System Tables's Configuration Table
334 Status
= CoreInstallConfigurationTable (&gEfiMemoryTypeInformationGuid
, &gMemoryTypeInformation
);
335 ASSERT_EFI_ERROR (Status
);
338 // If Loading modules At fixed address feature is enabled, install Load moduels at fixed address
339 // Configuration Table so that user could easily to retrieve the top address to load Dxe and PEI
340 // Code and Tseg base to load SMM driver.
342 if (PcdGet64(PcdLoadModuleAtFixAddressEnable
) != 0) {
343 Status
= CoreInstallConfigurationTable (&gLoadFixedAddressConfigurationTableGuid
, &gLoadModuleAtFixAddressConfigurationTable
);
344 ASSERT_EFI_ERROR (Status
);
347 // Report Status Code here for DXE_ENTRY_POINT once it is available
351 (EFI_SOFTWARE_DXE_CORE
| EFI_SW_DXE_CORE_PC_ENTRY_POINT
)
355 // Create the aligned system table pointer structure that is used by external
356 // debuggers to locate the system table... Also, install debug image info
357 // configuration table.
359 CoreInitializeDebugImageInfoTable ();
360 CoreNewDebugImageInfoEntry (
361 EFI_DEBUG_IMAGE_INFO_TYPE_NORMAL
,
366 DEBUG ((DEBUG_INFO
| DEBUG_LOAD
, "HOBLIST address in DXE = 0x%p\n", HobStart
));
369 EFI_PEI_HOB_POINTERS Hob
;
371 for (Hob
.Raw
= HobStart
; !END_OF_HOB_LIST(Hob
); Hob
.Raw
= GET_NEXT_HOB(Hob
)) {
372 if (GET_HOB_TYPE (Hob
) == EFI_HOB_TYPE_MEMORY_ALLOCATION
) {
373 DEBUG ((DEBUG_INFO
| DEBUG_LOAD
, "Memory Allocation 0x%08x 0x%0lx - 0x%0lx\n", \
374 Hob
.MemoryAllocation
->AllocDescriptor
.MemoryType
, \
375 Hob
.MemoryAllocation
->AllocDescriptor
.MemoryBaseAddress
, \
376 Hob
.MemoryAllocation
->AllocDescriptor
.MemoryBaseAddress
+ Hob
.MemoryAllocation
->AllocDescriptor
.MemoryLength
- 1));
379 for (Hob
.Raw
= HobStart
; !END_OF_HOB_LIST(Hob
); Hob
.Raw
= GET_NEXT_HOB(Hob
)) {
380 if (GET_HOB_TYPE (Hob
) == EFI_HOB_TYPE_FV2
) {
381 DEBUG ((DEBUG_INFO
| DEBUG_LOAD
, "FV2 Hob 0x%0lx - 0x%0lx\n", Hob
.FirmwareVolume2
->BaseAddress
, Hob
.FirmwareVolume2
->BaseAddress
+ Hob
.FirmwareVolume2
->Length
- 1));
382 } else if (GET_HOB_TYPE (Hob
) == EFI_HOB_TYPE_FV
) {
383 DEBUG ((DEBUG_INFO
| DEBUG_LOAD
, "FV Hob 0x%0lx - 0x%0lx\n", Hob
.FirmwareVolume
->BaseAddress
, Hob
.FirmwareVolume
->BaseAddress
+ Hob
.FirmwareVolume
->Length
- 1));
389 // Initialize the Event Services
391 Status
= CoreInitializeEventServices ();
392 ASSERT_EFI_ERROR (Status
);
394 MemoryProfileInstallProtocol ();
396 CoreInitializePropertiesTable ();
397 CoreInitializeMemoryAttributesTable ();
400 // Get persisted vector hand-off info from GUIDeed HOB again due to HobStart may be updated,
401 // and install configuration table
403 GuidHob
= GetNextGuidHob (&gEfiVectorHandoffInfoPpiGuid
, HobStart
);
404 if (GuidHob
!= NULL
) {
405 VectorInfoList
= (EFI_VECTOR_HANDOFF_INFO
*) (GET_GUID_HOB_DATA(GuidHob
));
406 VectorInfo
= VectorInfoList
;
408 while (VectorInfo
->Attribute
!= EFI_VECTOR_HANDOFF_LAST_ENTRY
) {
412 VectorInfo
= AllocateCopyPool (sizeof (EFI_VECTOR_HANDOFF_INFO
) * Index
, (VOID
*) VectorInfoList
);
413 ASSERT (VectorInfo
!= NULL
);
414 Status
= CoreInstallConfigurationTable (&gEfiVectorHandoffTableGuid
, (VOID
*) VectorInfo
);
415 ASSERT_EFI_ERROR (Status
);
419 // Get the Protocols that were passed in from PEI to DXE through GUIDed HOBs
421 // These Protocols are not architectural. This implementation is sharing code between
422 // PEI and DXE in order to save FLASH space. These Protocols could also be implemented
423 // as part of the DXE Core. However, that would also require the DXE Core to be ported
424 // each time a different CPU is used, a different Decompression algorithm is used, or a
425 // different Image type is used. By placing these Protocols in PEI, the DXE Core remains
426 // generic, and only PEI and the Arch Protocols need to be ported from Platform to Platform,
427 // and from CPU to CPU.
431 // Publish the EFI, Tiano, and Custom Decompress protocols for use by other DXE components
433 Status
= CoreInstallMultipleProtocolInterfaces (
435 &gEfiDecompressProtocolGuid
, &gEfiDecompress
,
438 ASSERT_EFI_ERROR (Status
);
441 // Register for the GUIDs of the Architectural Protocols, so the rest of the
442 // EFI Boot Services and EFI Runtime Services tables can be filled in.
443 // Also register for the GUIDs of optional protocols.
445 CoreNotifyOnProtocolInstallation ();
448 // Produce Firmware Volume Protocols, one for each FV in the HOB list.
450 Status
= FwVolBlockDriverInit (gDxeCoreImageHandle
, gDxeCoreST
);
451 ASSERT_EFI_ERROR (Status
);
453 Status
= FwVolDriverInit (gDxeCoreImageHandle
, gDxeCoreST
);
454 ASSERT_EFI_ERROR (Status
);
457 // Produce the Section Extraction Protocol
459 Status
= InitializeSectionExtraction (gDxeCoreImageHandle
, gDxeCoreST
);
460 ASSERT_EFI_ERROR (Status
);
463 // Initialize the DXE Dispatcher
465 PERF_START (NULL
,"CoreInitializeDispatcher", "DxeMain", 0) ;
466 CoreInitializeDispatcher ();
467 PERF_END (NULL
,"CoreInitializeDispatcher", "DxeMain", 0) ;
470 // Invoke the DXE Dispatcher
472 PERF_START (NULL
, "CoreDispatcher", "DxeMain", 0);
474 PERF_END (NULL
, "CoreDispatcher", "DxeMain", 0);
477 // Display Architectural protocols that were not loaded if this is DEBUG build
480 CoreDisplayMissingArchProtocols ();
484 // Display any drivers that were not dispatched because dependency expression
485 // evaluated to false if this is a debug build
488 CoreDisplayDiscoveredNotDispatched ();
492 // Assert if the Architectural Protocols are not present.
494 Status
= CoreAllEfiServicesAvailable ();
495 if (EFI_ERROR(Status
)) {
497 // Report Status code that some Architectural Protocols are not present.
500 EFI_ERROR_CODE
| EFI_ERROR_MAJOR
,
501 (EFI_SOFTWARE_DXE_CORE
| EFI_SW_DXE_CORE_EC_NO_ARCH
)
504 ASSERT_EFI_ERROR (Status
);
507 // Report Status code before transfer control to BDS
511 (EFI_SOFTWARE_DXE_CORE
| EFI_SW_DXE_CORE_PC_HANDOFF_TO_NEXT
)
515 // Transfer control to the BDS Architectural Protocol
520 // BDS should never return
529 Place holder function until all the Boot Services and Runtime Services are
532 @return EFI_NOT_AVAILABLE_YET
537 CoreEfiNotAvailableYetArg0 (
542 // This function should never be executed. If it does, then the architectural protocols
543 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
544 // DXE Core and all the Architectural Protocols are complete.
547 return EFI_NOT_AVAILABLE_YET
;
552 Place holder function until all the Boot Services and Runtime Services are
555 @param Arg1 Undefined
557 @return EFI_NOT_AVAILABLE_YET
562 CoreEfiNotAvailableYetArg1 (
567 // This function should never be executed. If it does, then the architectural protocols
568 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
569 // DXE Core and all the Architectural Protocols are complete.
572 return EFI_NOT_AVAILABLE_YET
;
577 Place holder function until all the Boot Services and Runtime Services are available.
579 @param Arg1 Undefined
580 @param Arg2 Undefined
582 @return EFI_NOT_AVAILABLE_YET
587 CoreEfiNotAvailableYetArg2 (
593 // This function should never be executed. If it does, then the architectural protocols
594 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
595 // DXE Core and all the Architectural Protocols are complete.
598 return EFI_NOT_AVAILABLE_YET
;
603 Place holder function until all the Boot Services and Runtime Services are available.
605 @param Arg1 Undefined
606 @param Arg2 Undefined
607 @param Arg3 Undefined
609 @return EFI_NOT_AVAILABLE_YET
614 CoreEfiNotAvailableYetArg3 (
621 // This function should never be executed. If it does, then the architectural protocols
622 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
623 // DXE Core and all the Architectural Protocols are complete.
626 return EFI_NOT_AVAILABLE_YET
;
631 Place holder function until all the Boot Services and Runtime Services are available.
633 @param Arg1 Undefined
634 @param Arg2 Undefined
635 @param Arg3 Undefined
636 @param Arg4 Undefined
638 @return EFI_NOT_AVAILABLE_YET
643 CoreEfiNotAvailableYetArg4 (
651 // This function should never be executed. If it does, then the architectural protocols
652 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
653 // DXE Core and all the Architectural Protocols are complete.
656 return EFI_NOT_AVAILABLE_YET
;
661 Place holder function until all the Boot Services and Runtime Services are available.
663 @param Arg1 Undefined
664 @param Arg2 Undefined
665 @param Arg3 Undefined
666 @param Arg4 Undefined
667 @param Arg5 Undefined
669 @return EFI_NOT_AVAILABLE_YET
674 CoreEfiNotAvailableYetArg5 (
683 // This function should never be executed. If it does, then the architectural protocols
684 // have not been designed correctly. The CpuBreakpoint () is commented out for now until the
685 // DXE Core and all the Architectural Protocols are complete.
688 return EFI_NOT_AVAILABLE_YET
;
693 Calcualte the 32-bit CRC in a EFI table using the service provided by the
696 @param Hdr Pointer to an EFI standard header
701 IN OUT EFI_TABLE_HEADER
*Hdr
709 // If gBS->CalculateCrce32 () == CoreEfiNotAvailableYet () then
710 // Crc will come back as zero if we set it to zero here
713 gBS
->CalculateCrc32 ((UINT8
*)Hdr
, Hdr
->HeaderSize
, &Crc
);
719 Terminates all boot services.
721 @param ImageHandle Handle that identifies the exiting image.
722 @param MapKey Key to the latest memory map.
724 @retval EFI_SUCCESS Boot Services terminated
725 @retval EFI_INVALID_PARAMETER MapKey is incorrect.
730 CoreExitBootServices (
731 IN EFI_HANDLE ImageHandle
,
740 gTimer
->SetTimerPeriod (gTimer
, 0);
743 // Terminate memory services if the MapKey matches
745 Status
= CoreTerminateMemoryMap (MapKey
);
746 if (EFI_ERROR (Status
)) {
748 // Notify other drivers that ExitBootServices fail
750 CoreNotifySignalList (&gEventExitBootServicesFailedGuid
);
755 // Notify other drivers that we are exiting boot services.
757 CoreNotifySignalList (&gEfiEventExitBootServicesGuid
);
760 // Report that ExitBootServices() has been called
764 (EFI_SOFTWARE_EFI_BOOT_SERVICE
| EFI_SW_BS_PC_EXIT_BOOT_SERVICES
)
768 // Disable interrupt of Debug timer.
770 SaveAndSetDebugTimerInterrupt (FALSE
);
773 // Disable CPU Interrupts
775 gCpu
->DisableInterrupt (gCpu
);
778 // Clear the non-runtime values of the EFI System Table
780 gDxeCoreST
->BootServices
= NULL
;
781 gDxeCoreST
->ConIn
= NULL
;
782 gDxeCoreST
->ConsoleInHandle
= NULL
;
783 gDxeCoreST
->ConOut
= NULL
;
784 gDxeCoreST
->ConsoleOutHandle
= NULL
;
785 gDxeCoreST
->StdErr
= NULL
;
786 gDxeCoreST
->StandardErrorHandle
= NULL
;
789 // Recompute the 32-bit CRC of the EFI System Table
791 CalculateEfiHdrCrc (&gDxeCoreST
->Hdr
);
794 // Zero out the Boot Service Table
796 ZeroMem (gBS
, sizeof (EFI_BOOT_SERVICES
));
800 // Update the AtRuntime field in Runtiem AP.
802 gRuntime
->AtRuntime
= TRUE
;
809 Given a compressed source buffer, this function retrieves the size of the
810 uncompressed buffer and the size of the scratch buffer required to decompress
811 the compressed source buffer.
813 The GetInfo() function retrieves the size of the uncompressed buffer and the
814 temporary scratch buffer required to decompress the buffer specified by Source
815 and SourceSize. If the size of the uncompressed buffer or the size of the
816 scratch buffer cannot be determined from the compressed data specified by
817 Source and SourceData, then EFI_INVALID_PARAMETER is returned. Otherwise, the
818 size of the uncompressed buffer is returned in DestinationSize, the size of
819 the scratch buffer is returned in ScratchSize, and EFI_SUCCESS is returned.
820 The GetInfo() function does not have scratch buffer available to perform a
821 thorough checking of the validity of the source data. It just retrieves the
822 "Original Size" field from the beginning bytes of the source data and output
823 it as DestinationSize. And ScratchSize is specific to the decompression
826 @param This A pointer to the EFI_DECOMPRESS_PROTOCOL instance.
827 @param Source The source buffer containing the compressed data.
828 @param SourceSize The size, in bytes, of the source buffer.
829 @param DestinationSize A pointer to the size, in bytes, of the
830 uncompressed buffer that will be generated when the
831 compressed buffer specified by Source and
832 SourceSize is decompressed.
833 @param ScratchSize A pointer to the size, in bytes, of the scratch
834 buffer that is required to decompress the
835 compressed buffer specified by Source and
838 @retval EFI_SUCCESS The size of the uncompressed data was returned in
839 DestinationSize and the size of the scratch buffer
840 was returned in ScratchSize.
841 @retval EFI_INVALID_PARAMETER The size of the uncompressed data or the size of
842 the scratch buffer cannot be determined from the
843 compressed data specified by Source and
849 DxeMainUefiDecompressGetInfo (
850 IN EFI_DECOMPRESS_PROTOCOL
*This
,
852 IN UINT32 SourceSize
,
853 OUT UINT32
*DestinationSize
,
854 OUT UINT32
*ScratchSize
857 if (Source
== NULL
|| DestinationSize
== NULL
|| ScratchSize
== NULL
) {
858 return EFI_INVALID_PARAMETER
;
860 return UefiDecompressGetInfo (Source
, SourceSize
, DestinationSize
, ScratchSize
);
865 Decompresses a compressed source buffer.
867 The Decompress() function extracts decompressed data to its original form.
868 This protocol is designed so that the decompression algorithm can be
869 implemented without using any memory services. As a result, the Decompress()
870 Function is not allowed to call AllocatePool() or AllocatePages() in its
871 implementation. It is the caller's responsibility to allocate and free the
872 Destination and Scratch buffers.
873 If the compressed source data specified by Source and SourceSize is
874 successfully decompressed into Destination, then EFI_SUCCESS is returned. If
875 the compressed source data specified by Source and SourceSize is not in a
876 valid compressed data format, then EFI_INVALID_PARAMETER is returned.
878 @param This A pointer to the EFI_DECOMPRESS_PROTOCOL instance.
879 @param Source The source buffer containing the compressed data.
880 @param SourceSize SourceSizeThe size of source data.
881 @param Destination On output, the destination buffer that contains
882 the uncompressed data.
883 @param DestinationSize The size of the destination buffer. The size of
884 the destination buffer needed is obtained from
885 EFI_DECOMPRESS_PROTOCOL.GetInfo().
886 @param Scratch A temporary scratch buffer that is used to perform
888 @param ScratchSize The size of scratch buffer. The size of the
889 scratch buffer needed is obtained from GetInfo().
891 @retval EFI_SUCCESS Decompression completed successfully, and the
892 uncompressed buffer is returned in Destination.
893 @retval EFI_INVALID_PARAMETER The source buffer specified by Source and
894 SourceSize is corrupted (not in a valid
900 DxeMainUefiDecompress (
901 IN EFI_DECOMPRESS_PROTOCOL
*This
,
903 IN UINT32 SourceSize
,
904 IN OUT VOID
*Destination
,
905 IN UINT32 DestinationSize
,
906 IN OUT VOID
*Scratch
,
907 IN UINT32 ScratchSize
911 UINT32 TestDestinationSize
;
912 UINT32 TestScratchSize
;
914 if (Source
== NULL
|| Destination
== NULL
|| Scratch
== NULL
) {
915 return EFI_INVALID_PARAMETER
;
918 Status
= UefiDecompressGetInfo (Source
, SourceSize
, &TestDestinationSize
, &TestScratchSize
);
919 if (EFI_ERROR (Status
)) {
923 if (ScratchSize
< TestScratchSize
|| DestinationSize
< TestDestinationSize
) {
924 return RETURN_INVALID_PARAMETER
;
927 return UefiDecompress (Source
, Destination
, Scratch
);