/** @file The internal header file includes the common header files, defines internal structure and functions used by DxeCore module. Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at http://opensource.org/licenses/bsd-license.php THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. **/ #ifndef _DXE_MAIN_H_ #define _DXE_MAIN_H_ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include // // attributes for reserved memory before it is promoted to system memory // #define EFI_MEMORY_PRESENT 0x0100000000000000ULL #define EFI_MEMORY_INITIALIZED 0x0200000000000000ULL #define EFI_MEMORY_TESTED 0x0400000000000000ULL // // range for memory mapped port I/O on IPF // #define EFI_MEMORY_PORT_IO 0x4000000000000000ULL /// /// EFI_DEP_REPLACE_TRUE - Used to dynamically patch the dependecy expression /// to save time. A EFI_DEP_PUSH is evauated one an /// replaced with EFI_DEP_REPLACE_TRUE. If PI spec's Vol 2 /// Driver Execution Environment Core Interface use 0xff /// as new DEPEX opcode. EFI_DEP_REPLACE_TRUE should be /// defined to a new value that is not conflicting with PI spec. /// #define EFI_DEP_REPLACE_TRUE 0xff /// /// Define the initial size of the dependency expression evaluation stack /// #define DEPEX_STACK_SIZE_INCREMENT 0x1000 typedef struct { EFI_GUID *ProtocolGuid; VOID **Protocol; EFI_EVENT Event; VOID *Registration; BOOLEAN Present; } EFI_CORE_PROTOCOL_NOTIFY_ENTRY; // // DXE Dispatcher Data structures // #define KNOWN_HANDLE_SIGNATURE SIGNATURE_32('k','n','o','w') typedef struct { UINTN Signature; LIST_ENTRY Link; // mFvHandleList EFI_HANDLE Handle; EFI_GUID FvNameGuid; } KNOWN_HANDLE; #define EFI_CORE_DRIVER_ENTRY_SIGNATURE SIGNATURE_32('d','r','v','r') typedef struct { UINTN Signature; LIST_ENTRY Link; // mDriverList LIST_ENTRY ScheduledLink; // mScheduledQueue EFI_HANDLE FvHandle; EFI_GUID FileName; EFI_DEVICE_PATH_PROTOCOL *FvFileDevicePath; EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv; VOID *Depex; UINTN DepexSize; BOOLEAN Before; BOOLEAN After; EFI_GUID BeforeAfterGuid; BOOLEAN Dependent; BOOLEAN Unrequested; BOOLEAN Scheduled; BOOLEAN Untrusted; BOOLEAN Initialized; BOOLEAN DepexProtocolError; EFI_HANDLE ImageHandle; BOOLEAN IsFvImage; } EFI_CORE_DRIVER_ENTRY; // //The data structure of GCD memory map entry // #define EFI_GCD_MAP_SIGNATURE SIGNATURE_32('g','c','d','m') typedef struct { UINTN Signature; LIST_ENTRY Link; EFI_PHYSICAL_ADDRESS BaseAddress; UINT64 EndAddress; UINT64 Capabilities; UINT64 Attributes; EFI_GCD_MEMORY_TYPE GcdMemoryType; EFI_GCD_IO_TYPE GcdIoType; EFI_HANDLE ImageHandle; EFI_HANDLE DeviceHandle; } EFI_GCD_MAP_ENTRY; // // DXE Core Global Variables // extern EFI_SYSTEM_TABLE *gDxeCoreST; extern EFI_RUNTIME_SERVICES *gDxeCoreRT; extern EFI_DXE_SERVICES *gDxeCoreDS; extern EFI_HANDLE gDxeCoreImageHandle; extern EFI_DECOMPRESS_PROTOCOL gEfiDecompress; extern EFI_RUNTIME_ARCH_PROTOCOL *gRuntime; extern EFI_CPU_ARCH_PROTOCOL *gCpu; extern EFI_WATCHDOG_TIMER_ARCH_PROTOCOL *gWatchdogTimer; extern EFI_METRONOME_ARCH_PROTOCOL *gMetronome; extern EFI_TIMER_ARCH_PROTOCOL *gTimer; extern EFI_SECURITY_ARCH_PROTOCOL *gSecurity; extern EFI_SECURITY2_ARCH_PROTOCOL *gSecurity2; extern EFI_BDS_ARCH_PROTOCOL *gBds; extern EFI_SMM_BASE2_PROTOCOL *gSmmBase2; extern EFI_TPL gEfiCurrentTpl; extern EFI_GUID *gDxeCoreFileName; extern EFI_LOADED_IMAGE_PROTOCOL *gDxeCoreLoadedImage; extern EFI_MEMORY_TYPE_INFORMATION gMemoryTypeInformation[EfiMaxMemoryType + 1]; extern BOOLEAN gDispatcherRunning; extern EFI_RUNTIME_ARCH_PROTOCOL gRuntimeTemplate; extern EFI_LOAD_FIXED_ADDRESS_CONFIGURATION_TABLE gLoadModuleAtFixAddressConfigurationTable; extern BOOLEAN gLoadFixedAddressCodeMemoryReady; // // Service Initialization Functions // /** Called to initialize the pool. **/ VOID CoreInitializePool ( VOID ); /** Called to initialize the memory map and add descriptors to the current descriptor list. The first descriptor that is added must be general usable memory as the addition allocates heap. @param Type The type of memory to add @param Start The starting address in the memory range Must be page aligned @param NumberOfPages The number of pages in the range @param Attribute Attributes of the memory to add @return None. The range is added to the memory map **/ VOID CoreAddMemoryDescriptor ( IN EFI_MEMORY_TYPE Type, IN EFI_PHYSICAL_ADDRESS Start, IN UINT64 NumberOfPages, IN UINT64 Attribute ); /** Release memory lock on mGcdMemorySpaceLock. **/ VOID CoreReleaseGcdMemoryLock ( VOID ); /** Acquire memory lock on mGcdMemorySpaceLock. **/ VOID CoreAcquireGcdMemoryLock ( VOID ); /** External function. Initializes memory services based on the memory descriptor HOBs. This function is responsible for priming the memory map, so memory allocations and resource allocations can be made. The first part of this function can not depend on any memory services until at least one memory descriptor is provided to the memory services. @param HobStart The start address of the HOB. @param MemoryBaseAddress Start address of memory region found to init DXE core. @param MemoryLength Length of memory region found to init DXE core. @retval EFI_SUCCESS Memory services successfully initialized. **/ EFI_STATUS CoreInitializeMemoryServices ( IN VOID **HobStart, OUT EFI_PHYSICAL_ADDRESS *MemoryBaseAddress, OUT UINT64 *MemoryLength ); /** External function. Initializes the GCD and memory services based on the memory descriptor HOBs. This function is responsible for priming the GCD map and the memory map, so memory allocations and resource allocations can be made. The HobStart will be relocated to a pool buffer. @param HobStart The start address of the HOB @param MemoryBaseAddress Start address of memory region found to init DXE core. @param MemoryLength Length of memory region found to init DXE core. @retval EFI_SUCCESS GCD services successfully initialized. **/ EFI_STATUS CoreInitializeGcdServices ( IN OUT VOID **HobStart, IN EFI_PHYSICAL_ADDRESS MemoryBaseAddress, IN UINT64 MemoryLength ); /** Initializes "event" support. @retval EFI_SUCCESS Always return success **/ EFI_STATUS CoreInitializeEventServices ( VOID ); /** 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 ); /** Creates an event that is fired everytime a Protocol of a specific type is installed. **/ VOID CoreNotifyOnProtocolInstallation ( VOID ); /** Return TRUE if all AP services are availible. @retval EFI_SUCCESS All AP services are available @retval EFI_NOT_FOUND At least one AP service is not available **/ EFI_STATUS CoreAllEfiServicesAvailable ( VOID ); /** 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 ); /** Called by the platform code to process a tick. @param Duration The number of 100ns elasped since the last call to TimerTick **/ VOID EFIAPI CoreTimerTick ( IN UINT64 Duration ); /** Initialize the dispatcher. Initialize the notification function that runs when an FV2 protocol is added to the system. **/ VOID CoreInitializeDispatcher ( VOID ); /** This is the POSTFIX version of the dependency evaluator. This code does not need to handle Before or After, as it is not valid to call this routine in this case. The SOR is just ignored and is a nop in the grammer. POSTFIX means all the math is done on top of the stack. @param DriverEntry DriverEntry element to update. @retval TRUE If driver is ready to run. @retval FALSE If driver is not ready to run or some fatal error was found. **/ BOOLEAN CoreIsSchedulable ( IN EFI_CORE_DRIVER_ENTRY *DriverEntry ); /** Preprocess dependency expression and update DriverEntry to reflect the state of Before, After, and SOR dependencies. If DriverEntry->Before or DriverEntry->After is set it will never be cleared. If SOR is set it will be cleared by CoreSchedule(), and then the driver can be dispatched. @param DriverEntry DriverEntry element to update . @retval EFI_SUCCESS It always works. **/ EFI_STATUS CorePreProcessDepex ( IN EFI_CORE_DRIVER_ENTRY *DriverEntry ); /** 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 ); /** Make sure the memory map is following all the construction rules, it is the last time to check memory map error before exit boot services. @param MapKey Memory map key @retval EFI_INVALID_PARAMETER Memory map not consistent with construction rules. @retval EFI_SUCCESS Valid memory map. **/ EFI_STATUS CoreTerminateMemoryMap ( IN UINTN MapKey ); /** Signals all events in the EventGroup. @param EventGroup The list to signal **/ VOID CoreNotifySignalList ( IN EFI_GUID *EventGroup ); /** Boot Service called to add, modify, or remove a system configuration table from the EFI System Table. @param Guid Pointer to the GUID for the entry to add, update, or remove @param Table Pointer to the configuration table for the entry to add, update, or remove, may be NULL. @return EFI_SUCCESS Guid, Table pair added, updated, or removed. @return EFI_INVALID_PARAMETER Input GUID not valid. @return EFI_NOT_FOUND Attempted to delete non-existant entry @return EFI_OUT_OF_RESOURCES Not enough memory available **/ EFI_STATUS EFIAPI CoreInstallConfigurationTable ( IN EFI_GUID *Guid, IN VOID *Table ); /** Raise the task priority level to the new level. High level is implemented by disabling processor interrupts. @param NewTpl New task priority level @return The previous task priority level **/ EFI_TPL EFIAPI CoreRaiseTpl ( IN EFI_TPL NewTpl ); /** Lowers the task priority to the previous value. If the new priority unmasks events at a higher priority, they are dispatched. @param NewTpl New, lower, task priority **/ VOID EFIAPI CoreRestoreTpl ( IN EFI_TPL NewTpl ); /** Introduces a fine-grained stall. @param Microseconds The number of microseconds to stall execution. @retval EFI_SUCCESS Execution was stalled for at least the requested amount of microseconds. @retval EFI_NOT_AVAILABLE_YET gMetronome is not available yet **/ EFI_STATUS EFIAPI CoreStall ( IN UINTN Microseconds ); /** Sets the system's watchdog timer. @param Timeout The number of seconds to set the watchdog timer to. A value of zero disables the timer. @param WatchdogCode The numeric code to log on a watchdog timer timeout event. The firmware reserves codes 0x0000 to 0xFFFF. Loaders and operating systems may use other timeout codes. @param DataSize The size, in bytes, of WatchdogData. @param WatchdogData A data buffer that includes a Null-terminated Unicode string, optionally followed by additional binary data. The string is a description that the call may use to further indicate the reason to be logged with a watchdog event. @return EFI_SUCCESS Timeout has been set @return EFI_NOT_AVAILABLE_YET WatchdogTimer is not available yet @return EFI_UNSUPPORTED System does not have a timer (currently not used) @return EFI_DEVICE_ERROR Could not complete due to hardware error **/ EFI_STATUS EFIAPI CoreSetWatchdogTimer ( IN UINTN Timeout, IN UINT64 WatchdogCode, IN UINTN DataSize, IN CHAR16 *WatchdogData OPTIONAL ); /** Wrapper function to CoreInstallProtocolInterfaceNotify. This is the public API which Calls the private one which contains a BOOLEAN parameter for notifications @param UserHandle The handle to install the protocol handler on, or NULL if a new handle is to be allocated @param Protocol The protocol to add to the handle @param InterfaceType Indicates whether Interface is supplied in native form. @param Interface The interface for the protocol being added @return Status code **/ EFI_STATUS EFIAPI CoreInstallProtocolInterface ( IN OUT EFI_HANDLE *UserHandle, IN EFI_GUID *Protocol, IN EFI_INTERFACE_TYPE InterfaceType, IN VOID *Interface ); /** Installs a protocol interface into the boot services environment. @param UserHandle The handle to install the protocol handler on, or NULL if a new handle is to be allocated @param Protocol The protocol to add to the handle @param InterfaceType Indicates whether Interface is supplied in native form. @param Interface The interface for the protocol being added @param Notify indicates whether notify the notification list for this protocol @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate @retval EFI_SUCCESS Protocol interface successfully installed **/ EFI_STATUS CoreInstallProtocolInterfaceNotify ( IN OUT EFI_HANDLE *UserHandle, IN EFI_GUID *Protocol, IN EFI_INTERFACE_TYPE InterfaceType, IN VOID *Interface, IN BOOLEAN Notify ); /** Installs a list of protocol interface into the boot services environment. This function calls InstallProtocolInterface() in a loop. If any error occures all the protocols added by this function are removed. This is basically a lib function to save space. @param Handle The handle to install the protocol handlers on, or NULL if a new handle is to be allocated @param ... EFI_GUID followed by protocol instance. A NULL terminates the list. The pairs are the arguments to InstallProtocolInterface(). All the protocols are added to Handle. @retval EFI_SUCCESS All the protocol interface was installed. @retval EFI_OUT_OF_RESOURCES There was not enough memory in pool to install all the protocols. @retval EFI_ALREADY_STARTED A Device Path Protocol instance was passed in that is already present in the handle database. @retval EFI_INVALID_PARAMETER Handle is NULL. @retval EFI_SUCCESS Protocol interfaces successfully installed. **/ EFI_STATUS EFIAPI CoreInstallMultipleProtocolInterfaces ( IN OUT EFI_HANDLE *Handle, ... ); /** Uninstalls a list of protocol interface in the boot services environment. This function calls UnisatllProtocolInterface() in a loop. This is basically a lib function to save space. @param Handle The handle to uninstall the protocol @param ... EFI_GUID followed by protocol instance. A NULL terminates the list. The pairs are the arguments to UninstallProtocolInterface(). All the protocols are added to Handle. @return Status code **/ EFI_STATUS EFIAPI CoreUninstallMultipleProtocolInterfaces ( IN EFI_HANDLE Handle, ... ); /** Reinstall a protocol interface on a device handle. The OldInterface for Protocol is replaced by the NewInterface. @param UserHandle Handle on which the interface is to be reinstalled @param Protocol The numeric ID of the interface @param OldInterface A pointer to the old interface @param NewInterface A pointer to the new interface @retval EFI_SUCCESS The protocol interface was installed @retval EFI_NOT_FOUND The OldInterface on the handle was not found @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value **/ EFI_STATUS EFIAPI CoreReinstallProtocolInterface ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, IN VOID *OldInterface, IN VOID *NewInterface ); /** Uninstalls all instances of a protocol:interfacer from a handle. If the last protocol interface is remove from the handle, the handle is freed. @param UserHandle The handle to remove the protocol handler from @param Protocol The protocol, of protocol:interface, to remove @param Interface The interface, of protocol:interface, to remove @retval EFI_INVALID_PARAMETER Protocol is NULL. @retval EFI_SUCCESS Protocol interface successfully uninstalled. **/ EFI_STATUS EFIAPI CoreUninstallProtocolInterface ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, IN VOID *Interface ); /** Queries a handle to determine if it supports a specified protocol. @param UserHandle The handle being queried. @param Protocol The published unique identifier of the protocol. @param Interface Supplies the address where a pointer to the corresponding Protocol Interface is returned. @return The requested protocol interface for the handle **/ EFI_STATUS EFIAPI CoreHandleProtocol ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, OUT VOID **Interface ); /** Locates the installed protocol handler for the handle, and invokes it to obtain the protocol interface. Usage information is registered in the protocol data base. @param UserHandle The handle to obtain the protocol interface on @param Protocol The ID of the protocol @param Interface The location to return the protocol interface @param ImageHandle The handle of the Image that is opening the protocol interface specified by Protocol and Interface. @param ControllerHandle The controller handle that is requiring this interface. @param Attributes The open mode of the protocol interface specified by Handle and Protocol. @retval EFI_INVALID_PARAMETER Protocol is NULL. @retval EFI_SUCCESS Get the protocol interface. **/ EFI_STATUS EFIAPI CoreOpenProtocol ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, OUT VOID **Interface OPTIONAL, IN EFI_HANDLE ImageHandle, IN EFI_HANDLE ControllerHandle, IN UINT32 Attributes ); /** Return information about Opened protocols in the system @param UserHandle The handle to close the protocol interface on @param Protocol The ID of the protocol @param EntryBuffer A pointer to a buffer of open protocol information in the form of EFI_OPEN_PROTOCOL_INFORMATION_ENTRY structures. @param EntryCount Number of EntryBuffer entries **/ EFI_STATUS EFIAPI CoreOpenProtocolInformation ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, OUT EFI_OPEN_PROTOCOL_INFORMATION_ENTRY **EntryBuffer, OUT UINTN *EntryCount ); /** Closes a protocol on a handle that was opened using OpenProtocol(). @param UserHandle The handle for the protocol interface that was previously opened with OpenProtocol(), and is now being closed. @param Protocol The published unique identifier of the protocol. It is the caller's responsibility to pass in a valid GUID. @param AgentHandle The handle of the agent that is closing the protocol interface. @param ControllerHandle If the agent that opened a protocol is a driver that follows the EFI Driver Model, then this parameter is the controller handle that required the protocol interface. If the agent does not follow the EFI Driver Model, then this parameter is optional and may be NULL. @retval EFI_SUCCESS The protocol instance was closed. @retval EFI_INVALID_PARAMETER Handle, AgentHandle or ControllerHandle is not a valid EFI_HANDLE. @retval EFI_NOT_FOUND Can not find the specified protocol or AgentHandle. **/ EFI_STATUS EFIAPI CoreCloseProtocol ( IN EFI_HANDLE UserHandle, IN EFI_GUID *Protocol, IN EFI_HANDLE AgentHandle, IN EFI_HANDLE ControllerHandle ); /** Retrieves the list of protocol interface GUIDs that are installed on a handle in a buffer allocated from pool. @param UserHandle The handle from which to retrieve the list of protocol interface GUIDs. @param ProtocolBuffer A pointer to the list of protocol interface GUID pointers that are installed on Handle. @param ProtocolBufferCount A pointer to the number of GUID pointers present in ProtocolBuffer. @retval EFI_SUCCESS The list of protocol interface GUIDs installed on Handle was returned in ProtocolBuffer. The number of protocol interface GUIDs was returned in ProtocolBufferCount. @retval EFI_INVALID_PARAMETER Handle is NULL. @retval EFI_INVALID_PARAMETER Handle is not a valid EFI_HANDLE. @retval EFI_INVALID_PARAMETER ProtocolBuffer is NULL. @retval EFI_INVALID_PARAMETER ProtocolBufferCount is NULL. @retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the results. **/ EFI_STATUS EFIAPI CoreProtocolsPerHandle ( IN EFI_HANDLE UserHandle, OUT EFI_GUID ***ProtocolBuffer, OUT UINTN *ProtocolBufferCount ); /** Add a new protocol notification record for the request protocol. @param Protocol The requested protocol to add the notify registration @param Event The event to signal @param Registration Returns the registration record @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_SUCCESS Successfully returned the registration record that has been added **/ EFI_STATUS EFIAPI CoreRegisterProtocolNotify ( IN EFI_GUID *Protocol, IN EFI_EVENT Event, OUT VOID **Registration ); /** Removes all the events in the protocol database that match Event. @param Event The event to search for in the protocol database. @return EFI_SUCCESS when done searching the entire database. **/ EFI_STATUS CoreUnregisterProtocolNotify ( IN EFI_EVENT Event ); /** Locates the requested handle(s) and returns them in Buffer. @param SearchType The type of search to perform to locate the handles @param Protocol The protocol to search for @param SearchKey Dependant on SearchType @param BufferSize On input the size of Buffer. On output the size of data returned. @param Buffer The buffer to return the results in @retval EFI_BUFFER_TOO_SMALL Buffer too small, required buffer size is returned in BufferSize. @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_SUCCESS Successfully found the requested handle(s) and returns them in Buffer. **/ EFI_STATUS EFIAPI CoreLocateHandle ( IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID *Protocol OPTIONAL, IN VOID *SearchKey OPTIONAL, IN OUT UINTN *BufferSize, OUT EFI_HANDLE *Buffer ); /** Locates the handle to a device on the device path that best matches the specified protocol. @param Protocol The protocol to search for. @param DevicePath On input, a pointer to a pointer to the device path. On output, the device path pointer is modified to point to the remaining part of the devicepath. @param Device A pointer to the returned device handle. @retval EFI_SUCCESS The resulting handle was returned. @retval EFI_NOT_FOUND No handles matched the search. @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value. **/ EFI_STATUS EFIAPI CoreLocateDevicePath ( IN EFI_GUID *Protocol, IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath, OUT EFI_HANDLE *Device ); /** Function returns an array of handles that support the requested protocol in a buffer allocated from pool. This is a version of CoreLocateHandle() that allocates a buffer for the caller. @param SearchType Specifies which handle(s) are to be returned. @param Protocol Provides the protocol to search by. This parameter is only valid for SearchType ByProtocol. @param SearchKey Supplies the search key depending on the SearchType. @param NumberHandles The number of handles returned in Buffer. @param Buffer A pointer to the buffer to return the requested array of handles that support Protocol. @retval EFI_SUCCESS The result array of handles was returned. @retval EFI_NOT_FOUND No handles match the search. @retval EFI_OUT_OF_RESOURCES There is not enough pool memory to store the matching results. @retval EFI_INVALID_PARAMETER One or more paramters are not valid. **/ EFI_STATUS EFIAPI CoreLocateHandleBuffer ( IN EFI_LOCATE_SEARCH_TYPE SearchType, IN EFI_GUID *Protocol OPTIONAL, IN VOID *SearchKey OPTIONAL, IN OUT UINTN *NumberHandles, OUT EFI_HANDLE **Buffer ); /** Return the first Protocol Interface that matches the Protocol GUID. If Registration is passed in, return a Protocol Instance that was just add to the system. If Registration is NULL return the first Protocol Interface you find. @param Protocol The protocol to search for @param Registration Optional Registration Key returned from RegisterProtocolNotify() @param Interface Return the Protocol interface (instance). @retval EFI_SUCCESS If a valid Interface is returned @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_NOT_FOUND Protocol interface not found **/ EFI_STATUS EFIAPI CoreLocateProtocol ( IN EFI_GUID *Protocol, IN VOID *Registration OPTIONAL, OUT VOID **Interface ); /** return handle database key. @return Handle database key. **/ UINT64 CoreGetHandleDatabaseKey ( VOID ); /** Go connect any handles that were created or modified while a image executed. @param Key The Key to show that the handle has been created/modified **/ VOID CoreConnectHandlesByKey ( UINT64 Key ); /** Connects one or more drivers to a controller. @param ControllerHandle The handle of the controller to which driver(s) are to be connected. @param DriverImageHandle A pointer to an ordered list handles that support the EFI_DRIVER_BINDING_PROTOCOL. @param RemainingDevicePath A pointer to the device path that specifies a child of the controller specified by ControllerHandle. @param Recursive If TRUE, then ConnectController() is called recursively until the entire tree of controllers below the controller specified by ControllerHandle have been created. If FALSE, then the tree of controllers is only expanded one level. @retval EFI_SUCCESS 1) One or more drivers were connected to ControllerHandle. 2) No drivers were connected to ControllerHandle, but RemainingDevicePath is not NULL, and it is an End Device Path Node. @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. @retval EFI_NOT_FOUND 1) There are no EFI_DRIVER_BINDING_PROTOCOL instances present in the system. 2) No drivers were connected to ControllerHandle. @retval EFI_SECURITY_VIOLATION The user has no permission to start UEFI device drivers on the device path associated with the ControllerHandle or specified by the RemainingDevicePath. **/ EFI_STATUS EFIAPI CoreConnectController ( IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE *DriverImageHandle OPTIONAL, IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL, IN BOOLEAN Recursive ); /** Disonnects a controller from a driver @param ControllerHandle ControllerHandle The handle of the controller from which driver(s) are to be disconnected. @param DriverImageHandle DriverImageHandle The driver to disconnect from ControllerHandle. @param ChildHandle ChildHandle The handle of the child to destroy. @retval EFI_SUCCESS One or more drivers were disconnected from the controller. @retval EFI_SUCCESS On entry, no drivers are managing ControllerHandle. @retval EFI_SUCCESS DriverImageHandle is not NULL, and on entry DriverImageHandle is not managing ControllerHandle. @retval EFI_INVALID_PARAMETER ControllerHandle is NULL. @retval EFI_INVALID_PARAMETER DriverImageHandle is not NULL, and it is not a valid EFI_HANDLE. @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid EFI_HANDLE. @retval EFI_OUT_OF_RESOURCES There are not enough resources available to disconnect any drivers from ControllerHandle. @retval EFI_DEVICE_ERROR The controller could not be disconnected because of a device error. **/ EFI_STATUS EFIAPI CoreDisconnectController ( IN EFI_HANDLE ControllerHandle, IN EFI_HANDLE DriverImageHandle OPTIONAL, IN EFI_HANDLE ChildHandle OPTIONAL ); /** Allocates pages from the memory map. @param Type The type of allocation to perform @param MemoryType The type of memory to turn the allocated pages into @param NumberOfPages The number of pages to allocate @param Memory A pointer to receive the base allocated memory address @return Status. On success, Memory is filled in with the base address allocated @retval EFI_INVALID_PARAMETER Parameters violate checking rules defined in spec. @retval EFI_NOT_FOUND Could not allocate pages match the requirement. @retval EFI_OUT_OF_RESOURCES No enough pages to allocate. @retval EFI_SUCCESS Pages successfully allocated. **/ EFI_STATUS EFIAPI CoreAllocatePages ( IN EFI_ALLOCATE_TYPE Type, IN EFI_MEMORY_TYPE MemoryType, IN UINTN NumberOfPages, IN OUT EFI_PHYSICAL_ADDRESS *Memory ); /** Frees previous allocated pages. @param Memory Base address of memory being freed @param NumberOfPages The number of pages to free @retval EFI_NOT_FOUND Could not find the entry that covers the range @retval EFI_INVALID_PARAMETER Address not aligned @return EFI_SUCCESS -Pages successfully freed. **/ EFI_STATUS EFIAPI CoreFreePages ( IN EFI_PHYSICAL_ADDRESS Memory, IN UINTN NumberOfPages ); /** This function returns a copy of the current memory map. The map is an array of memory descriptors, each of which describes a contiguous block of memory. @param MemoryMapSize A pointer to the size, in bytes, of the MemoryMap buffer. On input, this is the size of the buffer allocated by the caller. On output, it is the size of the buffer returned by the firmware if the buffer was large enough, or the size of the buffer needed to contain the map if the buffer was too small. @param MemoryMap A pointer to the buffer in which firmware places the current memory map. @param MapKey A pointer to the location in which firmware returns the key for the current memory map. @param DescriptorSize A pointer to the location in which firmware returns the size, in bytes, of an individual EFI_MEMORY_DESCRIPTOR. @param DescriptorVersion A pointer to the location in which firmware returns the version number associated with the EFI_MEMORY_DESCRIPTOR. @retval EFI_SUCCESS The memory map was returned in the MemoryMap buffer. @retval EFI_BUFFER_TOO_SMALL The MemoryMap buffer was too small. The current buffer size needed to hold the memory map is returned in MemoryMapSize. @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value. **/ EFI_STATUS EFIAPI CoreGetMemoryMap ( IN OUT UINTN *MemoryMapSize, IN OUT EFI_MEMORY_DESCRIPTOR *MemoryMap, OUT UINTN *MapKey, OUT UINTN *DescriptorSize, OUT UINT32 *DescriptorVersion ); /** Allocate pool of a particular type. @param PoolType Type of pool to allocate @param Size The amount of pool to allocate @param Buffer The address to return a pointer to the allocated pool @retval EFI_INVALID_PARAMETER PoolType not valid or Buffer is NULL @retval EFI_OUT_OF_RESOURCES Size exceeds max pool size or allocation failed. @retval EFI_SUCCESS Pool successfully allocated. **/ EFI_STATUS EFIAPI CoreAllocatePool ( IN EFI_MEMORY_TYPE PoolType, IN UINTN Size, OUT VOID **Buffer ); /** Frees pool. @param Buffer The allocated pool entry to free @retval EFI_INVALID_PARAMETER Buffer is not a valid value. @retval EFI_SUCCESS Pool successfully freed. **/ EFI_STATUS EFIAPI CoreFreePool ( IN VOID *Buffer ); /** 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 ); /** 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 sarted, and does not support unload. @retval EFI_INVALID_PARAMPETER ImageHandle is not a valid image handle. **/ EFI_STATUS EFIAPI CoreUnloadImage ( IN EFI_HANDLE ImageHandle ); /** 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 ); /** 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 ); /** Creates an event. @param Type The type of event to create and its mode and attributes @param NotifyTpl The task priority level of event notifications @param NotifyFunction Pointer to the events notification function @param NotifyContext Pointer to the notification functions context; corresponds to parameter "Context" in the notification function @param Event Pointer to the newly created event if the call succeeds; undefined otherwise @retval EFI_SUCCESS The event structure was created @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value @retval EFI_OUT_OF_RESOURCES The event could not be allocated **/ EFI_STATUS EFIAPI CoreCreateEvent ( IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL IN VOID *NotifyContext, OPTIONAL OUT EFI_EVENT *Event ); /** Creates an event in a group. @param Type The type of event to create and its mode and attributes @param NotifyTpl The task priority level of event notifications @param NotifyFunction Pointer to the events notification function @param NotifyContext Pointer to the notification functions context; corresponds to parameter "Context" in the notification function @param EventGroup GUID for EventGroup if NULL act the same as gBS->CreateEvent(). @param Event Pointer to the newly created event if the call succeeds; undefined otherwise @retval EFI_SUCCESS The event structure was created @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value @retval EFI_OUT_OF_RESOURCES The event could not be allocated **/ EFI_STATUS EFIAPI CoreCreateEventEx ( IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL IN CONST VOID *NotifyContext, OPTIONAL IN CONST EFI_GUID *EventGroup, OPTIONAL OUT EFI_EVENT *Event ); /** Creates a general-purpose event structure @param Type The type of event to create and its mode and attributes @param NotifyTpl The task priority level of event notifications @param NotifyFunction Pointer to the events notification function @param NotifyContext Pointer to the notification functions context; corresponds to parameter "Context" in the notification function @param EventGroup GUID for EventGroup if NULL act the same as gBS->CreateEvent(). @param Event Pointer to the newly created event if the call succeeds; undefined otherwise @retval EFI_SUCCESS The event structure was created @retval EFI_INVALID_PARAMETER One of the parameters has an invalid value @retval EFI_OUT_OF_RESOURCES The event could not be allocated **/ EFI_STATUS EFIAPI CoreCreateEventInternal ( IN UINT32 Type, IN EFI_TPL NotifyTpl, IN EFI_EVENT_NOTIFY NotifyFunction, OPTIONAL IN CONST VOID *NotifyContext, OPTIONAL IN CONST EFI_GUID *EventGroup, OPTIONAL OUT EFI_EVENT *Event ); /** Sets the type of timer and the trigger time for a timer event. @param UserEvent The timer event that is to be signaled at the specified time @param Type The type of time that is specified in TriggerTime @param TriggerTime The number of 100ns units until the timer expires @retval EFI_SUCCESS The event has been set to be signaled at the requested time @retval EFI_INVALID_PARAMETER Event or Type is not valid **/ EFI_STATUS EFIAPI CoreSetTimer ( IN EFI_EVENT UserEvent, IN EFI_TIMER_DELAY Type, IN UINT64 TriggerTime ); /** Signals the event. Queues the event to be notified if needed. @param UserEvent The event to signal . @retval EFI_INVALID_PARAMETER Parameters are not valid. @retval EFI_SUCCESS The event was signaled. **/ EFI_STATUS EFIAPI CoreSignalEvent ( IN EFI_EVENT UserEvent ); /** Stops execution until an event is signaled. @param NumberOfEvents The number of events in the UserEvents array @param UserEvents An array of EFI_EVENT @param UserIndex Pointer to the index of the event which satisfied the wait condition @retval EFI_SUCCESS The event indicated by Index was signaled. @retval EFI_INVALID_PARAMETER The event indicated by Index has a notification function or Event was not a valid type @retval EFI_UNSUPPORTED The current TPL is not TPL_APPLICATION **/ EFI_STATUS EFIAPI CoreWaitForEvent ( IN UINTN NumberOfEvents, IN EFI_EVENT *UserEvents, OUT UINTN *UserIndex ); /** Closes an event and frees the event structure. @param UserEvent Event to close @retval EFI_INVALID_PARAMETER Parameters are not valid. @retval EFI_SUCCESS The event has been closed **/ EFI_STATUS EFIAPI CoreCloseEvent ( IN EFI_EVENT UserEvent ); /** Check the status of an event. @param UserEvent The event to check @retval EFI_SUCCESS The event is in the signaled state @retval EFI_NOT_READY The event is not in the signaled state @retval EFI_INVALID_PARAMETER Event is of type EVT_NOTIFY_SIGNAL **/ EFI_STATUS EFIAPI CoreCheckEvent ( IN EFI_EVENT UserEvent ); /** Adds reserved memory, system memory, or memory-mapped I/O resources to the global coherency domain of the processor. @param GcdMemoryType Memory type of the memory space. @param BaseAddress Base address of the memory space. @param Length Length of the memory space. @param Capabilities alterable attributes of the memory space. @retval EFI_SUCCESS Merged this memory space into GCD map. **/ EFI_STATUS EFIAPI CoreAddMemorySpace ( IN EFI_GCD_MEMORY_TYPE GcdMemoryType, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Capabilities ); /** Allocates nonexistent memory, reserved memory, system memory, or memorymapped I/O resources from the global coherency domain of the processor. @param GcdAllocateType The type of allocate operation @param GcdMemoryType The desired memory type @param Alignment Align with 2^Alignment @param Length Length to allocate @param BaseAddress Base address to allocate @param ImageHandle The image handle consume the allocated space. @param DeviceHandle The device handle consume the allocated space. @retval EFI_INVALID_PARAMETER Invalid parameter. @retval EFI_NOT_FOUND No descriptor contains the desired space. @retval EFI_SUCCESS Memory space successfully allocated. **/ EFI_STATUS EFIAPI CoreAllocateMemorySpace ( IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType, IN EFI_GCD_MEMORY_TYPE GcdMemoryType, IN UINTN Alignment, IN UINT64 Length, IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, IN EFI_HANDLE ImageHandle, IN EFI_HANDLE DeviceHandle OPTIONAL ); /** Frees nonexistent memory, reserved memory, system memory, or memory-mapped I/O resources from the global coherency domain of the processor. @param BaseAddress Base address of the memory space. @param Length Length of the memory space. @retval EFI_SUCCESS Space successfully freed. **/ EFI_STATUS EFIAPI CoreFreeMemorySpace ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length ); /** Removes reserved memory, system memory, or memory-mapped I/O resources from the global coherency domain of the processor. @param BaseAddress Base address of the memory space. @param Length Length of the memory space. @retval EFI_SUCCESS Successfully remove a segment of memory space. **/ EFI_STATUS EFIAPI CoreRemoveMemorySpace ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length ); /** Retrieves the descriptor for a memory region containing a specified address. @param BaseAddress Specified start address @param Descriptor Specified length @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_SUCCESS Successfully get memory space descriptor. **/ EFI_STATUS EFIAPI CoreGetMemorySpaceDescriptor ( IN EFI_PHYSICAL_ADDRESS BaseAddress, OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR *Descriptor ); /** Modifies the attributes for a memory region in the global coherency domain of the processor. @param BaseAddress Specified start address @param Length Specified length @param Attributes Specified attributes @retval EFI_SUCCESS The attributes were set for the memory region. @retval EFI_INVALID_PARAMETER Length is zero. @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory resource range specified by BaseAddress and Length. @retval EFI_UNSUPPORTED The bit mask of attributes is not support for the memory resource range specified by BaseAddress and Length. @retval EFI_ACCESS_DEFINED The attributes for the memory resource range specified by BaseAddress and Length cannot be modified. @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of the memory resource range. @retval EFI_NOT_AVAILABLE_YET The attributes cannot be set because CPU architectural protocol is not available yet. **/ EFI_STATUS EFIAPI CoreSetMemorySpaceAttributes ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN UINT64 Attributes ); /** Returns a map of the memory resources in the global coherency domain of the processor. @param NumberOfDescriptors Number of descriptors. @param MemorySpaceMap Descriptor array @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate @retval EFI_SUCCESS Successfully get memory space map. **/ EFI_STATUS EFIAPI CoreGetMemorySpaceMap ( OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_MEMORY_SPACE_DESCRIPTOR **MemorySpaceMap ); /** Adds reserved I/O or I/O resources to the global coherency domain of the processor. @param GcdIoType IO type of the segment. @param BaseAddress Base address of the segment. @param Length Length of the segment. @retval EFI_SUCCESS Merged this segment into GCD map. @retval EFI_INVALID_PARAMETER Parameter not valid **/ EFI_STATUS EFIAPI CoreAddIoSpace ( IN EFI_GCD_IO_TYPE GcdIoType, IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length ); /** Allocates nonexistent I/O, reserved I/O, or I/O resources from the global coherency domain of the processor. @param GcdAllocateType The type of allocate operation @param GcdIoType The desired IO type @param Alignment Align with 2^Alignment @param Length Length to allocate @param BaseAddress Base address to allocate @param ImageHandle The image handle consume the allocated space. @param DeviceHandle The device handle consume the allocated space. @retval EFI_INVALID_PARAMETER Invalid parameter. @retval EFI_NOT_FOUND No descriptor contains the desired space. @retval EFI_SUCCESS IO space successfully allocated. **/ EFI_STATUS EFIAPI CoreAllocateIoSpace ( IN EFI_GCD_ALLOCATE_TYPE GcdAllocateType, IN EFI_GCD_IO_TYPE GcdIoType, IN UINTN Alignment, IN UINT64 Length, IN OUT EFI_PHYSICAL_ADDRESS *BaseAddress, IN EFI_HANDLE ImageHandle, IN EFI_HANDLE DeviceHandle OPTIONAL ); /** Frees nonexistent I/O, reserved I/O, or I/O resources from the global coherency domain of the processor. @param BaseAddress Base address of the segment. @param Length Length of the segment. @retval EFI_SUCCESS Space successfully freed. **/ EFI_STATUS EFIAPI CoreFreeIoSpace ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length ); /** Removes reserved I/O or I/O resources from the global coherency domain of the processor. @param BaseAddress Base address of the segment. @param Length Length of the segment. @retval EFI_SUCCESS Successfully removed a segment of IO space. **/ EFI_STATUS EFIAPI CoreRemoveIoSpace ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length ); /** Retrieves the descriptor for an I/O region containing a specified address. @param BaseAddress Specified start address @param Descriptor Specified length @retval EFI_INVALID_PARAMETER Descriptor is NULL. @retval EFI_SUCCESS Successfully get the IO space descriptor. **/ EFI_STATUS EFIAPI CoreGetIoSpaceDescriptor ( IN EFI_PHYSICAL_ADDRESS BaseAddress, OUT EFI_GCD_IO_SPACE_DESCRIPTOR *Descriptor ); /** Returns a map of the I/O resources in the global coherency domain of the processor. @param NumberOfDescriptors Number of descriptors. @param IoSpaceMap Descriptor array @retval EFI_INVALID_PARAMETER Invalid parameter @retval EFI_OUT_OF_RESOURCES No enough buffer to allocate @retval EFI_SUCCESS Successfully get IO space map. **/ EFI_STATUS EFIAPI CoreGetIoSpaceMap ( OUT UINTN *NumberOfDescriptors, OUT EFI_GCD_IO_SPACE_DESCRIPTOR **IoSpaceMap ); /** This is the main Dispatcher for DXE and it exits when there are no more drivers to run. Drain the mScheduledQueue and load and start a PE image for each driver. Search the mDiscoveredList to see if any driver can be placed on the mScheduledQueue. If no drivers are placed on the mScheduledQueue exit the function. On exit it is assumed the Bds() will be called, and when the Bds() exits the Dispatcher will be called again. @retval EFI_ALREADY_STARTED The DXE Dispatcher is already running @retval EFI_NOT_FOUND No DXE Drivers were dispatched @retval EFI_SUCCESS One or more DXE Drivers were dispatched **/ EFI_STATUS EFIAPI CoreDispatcher ( VOID ); /** Check every driver and locate a matching one. If the driver is found, the Unrequested state flag is cleared. @param FirmwareVolumeHandle The handle of the Firmware Volume that contains the firmware file specified by DriverName. @param DriverName The Driver name to put in the Dependent state. @retval EFI_SUCCESS The DriverName was found and it's SOR bit was cleared @retval EFI_NOT_FOUND The DriverName does not exist or it's SOR bit was not set. **/ EFI_STATUS EFIAPI CoreSchedule ( IN EFI_HANDLE FirmwareVolumeHandle, IN EFI_GUID *DriverName ); /** Convert a driver from the Untrused back to the Scheduled state. @param FirmwareVolumeHandle The handle of the Firmware Volume that contains the firmware file specified by DriverName. @param DriverName The Driver name to put in the Scheduled state @retval EFI_SUCCESS The file was found in the untrusted state, and it was promoted to the trusted state. @retval EFI_NOT_FOUND The file was not found in the untrusted state. **/ EFI_STATUS EFIAPI CoreTrust ( IN EFI_HANDLE FirmwareVolumeHandle, IN EFI_GUID *DriverName ); /** This routine is the driver initialization entry point. It initializes the libraries, and registers two notification functions. These notification functions are responsible for building the FV stack dynamically. @param ImageHandle The image handle. @param SystemTable The system table. @retval EFI_SUCCESS Function successfully returned. **/ EFI_STATUS EFIAPI FwVolDriverInit ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** Entry point of the section extraction code. Initializes an instance of the section extraction interface and installs it on a new handle. @param ImageHandle A handle for the image that is initializing this driver @param SystemTable A pointer to the EFI system table @retval EFI_SUCCESS Driver initialized successfully @retval EFI_OUT_OF_RESOURCES Could not allocate needed resources **/ EFI_STATUS EFIAPI InitializeSectionExtraction ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** This DXE service routine is used to process a firmware volume. In particular, it can be called by BDS to process a single firmware volume found in a capsule. @param FvHeader pointer to a firmware volume header @param Size the size of the buffer pointed to by FvHeader @param FVProtocolHandle the handle on which a firmware volume protocol was produced for the firmware volume passed in. @retval EFI_OUT_OF_RESOURCES if an FVB could not be produced due to lack of system resources @retval EFI_VOLUME_CORRUPTED if the volume was corrupted @retval EFI_SUCCESS a firmware volume protocol was produced for the firmware volume **/ EFI_STATUS EFIAPI CoreProcessFirmwareVolume ( IN VOID *FvHeader, IN UINTN Size, OUT EFI_HANDLE *FVProtocolHandle ); // //Functions used during debug buils // /** Displays Architectural protocols that were not loaded and are required for DXE core to function. Only used in Debug Builds. **/ VOID CoreDisplayMissingArchProtocols ( VOID ); /** Traverse the discovered list for any drivers that were discovered but not loaded because the dependency experessions evaluated to false. **/ VOID CoreDisplayDiscoveredNotDispatched ( VOID ); /** Place holder function until all the Boot Services and Runtime Services are available. @return EFI_NOT_AVAILABLE_YET **/ EFI_STATUS EFIAPI CoreEfiNotAvailableYetArg0 ( VOID ); /** 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 ); /** 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 ); /** 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 ); /** 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 ); /** 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 ); /** 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 ); /** 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 sucessfully 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 ); /** SEP member function. This function creates and returns a new section stream handle to represent the new section stream. @param SectionStreamLength Size in bytes of the section stream. @param SectionStream Buffer containing the new section stream. @param SectionStreamHandle A pointer to a caller allocated UINTN that on output contains the new section stream handle. @retval EFI_SUCCESS The section stream is created successfully. @retval EFI_OUT_OF_RESOURCES memory allocation failed. @retval EFI_INVALID_PARAMETER Section stream does not end concident with end of last section. **/ EFI_STATUS EFIAPI OpenSectionStream ( IN UINTN SectionStreamLength, IN VOID *SectionStream, OUT UINTN *SectionStreamHandle ); /** SEP member function. Retrieves requested section from section stream. @param SectionStreamHandle The section stream from which to extract the requested section. @param SectionType A pointer to the type of section to search for. @param SectionDefinitionGuid If the section type is EFI_SECTION_GUID_DEFINED, then SectionDefinitionGuid indicates which of these types of sections to search for. @param SectionInstance Indicates which instance of the requested section to return. @param Buffer Double indirection to buffer. If *Buffer is non-null on input, then the buffer is caller allocated. If Buffer is NULL, then the buffer is callee allocated. In either case, the requried buffer size is returned in *BufferSize. @param BufferSize On input, indicates the size of *Buffer if *Buffer is non-null on input. On output, indicates the required size (allocated size if callee allocated) of *Buffer. @param AuthenticationStatus A pointer to a caller-allocated UINT32 that indicates the authentication status of the output buffer. If the input section's GuidedSectionHeader.Attributes field has the EFI_GUIDED_SECTION_AUTH_STATUS_VALID bit as clear, AuthenticationStatus must return zero. Both local bits (19:16) and aggregate bits (3:0) in AuthenticationStatus are returned by ExtractSection(). These bits reflect the status of the extraction operation. The bit pattern in both regions must be the same, as the local and aggregate authentication statuses have equivalent meaning at this level. If the function returns anything other than EFI_SUCCESS, the value of *AuthenticationStatus is undefined. @param IsFfs3Fv Indicates the FV format. @retval EFI_SUCCESS Section was retrieved successfully @retval EFI_PROTOCOL_ERROR A GUID defined section was encountered in the section stream with its EFI_GUIDED_SECTION_PROCESSING_REQUIRED bit set, but there was no corresponding GUIDed Section Extraction Protocol in the handle database. *Buffer is unmodified. @retval EFI_NOT_FOUND An error was encountered when parsing the SectionStream. This indicates the SectionStream is not correctly formatted. @retval EFI_NOT_FOUND The requested section does not exist. @retval EFI_OUT_OF_RESOURCES The system has insufficient resources to process the request. @retval EFI_INVALID_PARAMETER The SectionStreamHandle does not exist. @retval EFI_WARN_TOO_SMALL The size of the caller allocated input buffer is insufficient to contain the requested section. The input buffer is filled and section contents are truncated. **/ EFI_STATUS EFIAPI GetSection ( IN UINTN SectionStreamHandle, IN EFI_SECTION_TYPE *SectionType, IN EFI_GUID *SectionDefinitionGuid, IN UINTN SectionInstance, IN VOID **Buffer, IN OUT UINTN *BufferSize, OUT UINT32 *AuthenticationStatus, IN BOOLEAN IsFfs3Fv ); /** SEP member function. Deletes an existing section stream @param StreamHandleToClose Indicates the stream to close @retval EFI_SUCCESS The section stream is closed sucessfully. @retval EFI_OUT_OF_RESOURCES Memory allocation failed. @retval EFI_INVALID_PARAMETER Section stream does not end concident with end of last section. **/ EFI_STATUS EFIAPI CloseSectionStream ( IN UINTN StreamHandleToClose ); /** Creates and initializes the DebugImageInfo Table. Also creates the configuration table and registers it into the system table. Note: This function allocates memory, frees it, and then allocates memory at an address within the initial allocation. Since this function is called early in DXE core initialization (before drivers are dispatched), this should not be a problem. **/ VOID CoreInitializeDebugImageInfoTable ( VOID ); /** Update the CRC32 in the Debug Table. Since the CRC32 service is made available by the Runtime driver, we have to wait for the Runtime Driver to be installed before the CRC32 can be computed. This function is called elsewhere by the core when the runtime architectural protocol is produced. **/ VOID CoreUpdateDebugTableCrc32 ( VOID ); /** Adds a new DebugImageInfo structure to the DebugImageInfo Table. Re-Allocates the table if it's not large enough to accomidate another entry. @param ImageInfoType type of debug image information @param LoadedImage pointer to the loaded image protocol for the image being loaded @param ImageHandle image handle for the image being loaded **/ VOID CoreNewDebugImageInfoEntry ( IN UINT32 ImageInfoType, IN EFI_LOADED_IMAGE_PROTOCOL *LoadedImage, IN EFI_HANDLE ImageHandle ); /** Removes and frees an entry from the DebugImageInfo Table. @param ImageHandle image handle for the image being unloaded **/ VOID CoreRemoveDebugImageInfoEntry ( EFI_HANDLE ImageHandle ); /** This routine consumes FV hobs and produces instances of FW_VOL_BLOCK_PROTOCOL as appropriate. @param ImageHandle The image handle. @param SystemTable The system table. @retval EFI_SUCCESS Successfully initialized firmware volume block driver. **/ EFI_STATUS EFIAPI FwVolBlockDriverInit ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ); /** Get FVB authentication status @param FvbProtocol FVB protocol. @return Authentication status. **/ UINT32 GetFvbAuthenticationStatus ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvbProtocol ); /** This routine produces a firmware volume block protocol on a given buffer. @param BaseAddress base address of the firmware volume image @param Length length of the firmware volume image @param ParentHandle handle of parent firmware volume, if this image came from an FV image file and section in another firmware volume (ala capsules) @param AuthenticationStatus Authentication status inherited, if this image came from an FV image file and section in another firmware volume. @param FvProtocol Firmware volume block protocol produced. @retval EFI_VOLUME_CORRUPTED Volume corrupted. @retval EFI_OUT_OF_RESOURCES No enough buffer to be allocated. @retval EFI_SUCCESS Successfully produced a FVB protocol on given buffer. **/ EFI_STATUS ProduceFVBProtocolOnBuffer ( IN EFI_PHYSICAL_ADDRESS BaseAddress, IN UINT64 Length, IN EFI_HANDLE ParentHandle, IN UINT32 AuthenticationStatus, OUT EFI_HANDLE *FvProtocol OPTIONAL ); /** Raising to the task priority level of the mutual exclusion lock, and then acquires ownership of the lock. @param Lock The lock to acquire @return Lock owned **/ VOID CoreAcquireLock ( IN EFI_LOCK *Lock ); /** Initialize a basic mutual exclusion lock. Each lock provides mutual exclusion access at it's task priority level. Since there is no-premption (at any TPL) or multiprocessor support, acquiring the lock only consists of raising to the locks TPL. @param Lock The EFI_LOCK structure to initialize @retval EFI_SUCCESS Lock Owned. @retval EFI_ACCESS_DENIED Reentrant Lock Acquisition, Lock not Owned. **/ EFI_STATUS CoreAcquireLockOrFail ( IN EFI_LOCK *Lock ); /** Releases ownership of the mutual exclusion lock, and restores the previous task priority level. @param Lock The lock to release @return Lock unowned **/ VOID CoreReleaseLock ( IN EFI_LOCK *Lock ); /** An empty function to pass error checking of CreateEventEx (). @param Event Event whose notification function is being invoked. @param Context Pointer to the notification function's context, which is implementation-dependent. **/ VOID EFIAPI CoreEmptyCallbackFunction ( IN EFI_EVENT Event, IN VOID *Context ); /** Read data from Firmware Block by FVB protocol Read. The data may cross the multi block ranges. @param Fvb The FW_VOL_BLOCK_PROTOCOL instance from which to read data. @param StartLba Pointer to StartLba. On input, the start logical block index from which to read. On output,the end logical block index after reading. @param Offset Pointer to Offset On input, offset into the block at which to begin reading. On output, offset into the end block after reading. @param DataSize Size of data to be read. @param Data Pointer to Buffer that the data will be read into. @retval EFI_SUCCESS Successfully read data from firmware block. @retval others **/ EFI_STATUS ReadFvbData ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb, IN OUT EFI_LBA *StartLba, IN OUT UINTN *Offset, IN UINTN DataSize, OUT UINT8 *Data ); /** Given the supplied FW_VOL_BLOCK_PROTOCOL, allocate a buffer for output and copy the real length volume header into it. @param Fvb The FW_VOL_BLOCK_PROTOCOL instance from which to read the volume header @param FwVolHeader Pointer to pointer to allocated buffer in which the volume header is returned. @retval EFI_OUT_OF_RESOURCES No enough buffer could be allocated. @retval EFI_SUCCESS Successfully read volume header to the allocated buffer. **/ EFI_STATUS GetFwVolHeader ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *Fvb, OUT EFI_FIRMWARE_VOLUME_HEADER **FwVolHeader ); /** Verify checksum of the firmware volume header. @param FvHeader Points to the firmware volume header to be checked @retval TRUE Checksum verification passed @retval FALSE Checksum verification failed **/ BOOLEAN VerifyFvHeaderChecksum ( IN EFI_FIRMWARE_VOLUME_HEADER *FvHeader ); #endif