VOID
EFIAPI
ExitDriver (
IN EFI_STATUS Status
)
{
if (EFI_ERROR (Status)) {
ProcessLibraryDestructorList (gImageHandle, gST);
}
gBS->Exit (gImageHandle, Status, 0, NULL);
}
/**
Invokes the library destructors for all dependent libraries and terminates
the UEFI Application.
This function calls ProcessLibraryDestructorList() and the EFI Boot Service Exit()
with a status specified by Status.
@param Status Status returned by the application that is exiting.
**/
VOID
EFIAPI
Exit (
IN EFI_STATUS Status
)
{
ProcessLibraryDestructorList (gImageHandle, gST);
gBS->Exit (gImageHandle, Status, 0, NULL);
}
/**
Unload function that is registered in the LoadImage protocol. It un-installs
protocols produced and deallocates pool used by the driver. Called by the core
when unloading the driver.
@param ImageHandle
@retval EFI_SUCCESS
**/
EFI_STATUS
EFIAPI
_DriverUnloadHandler (
EFI_HANDLE ImageHandle
)
{
EFI_STATUS Status;
//
// If an UnloadImage() handler is specified, then call it
//
Status = ProcessModuleUnloadList (ImageHandle);
//
// If the driver specific unload handler does not return an error, then call all of the
// library destructors. If the unload handler returned an error, then the driver can not be
// unloaded, and the library destructors should not be called
//
if (!EFI_ERROR (Status)) {
//
// Close our ExitBootServices () notify function
//
#if __EDKII_GLUE_HAVE_DRIVER_EXIT_BOOT_SERVICES_EVENT__
if (_gDriverExitBootServicesEvent[0] != NULL) {
ASSERT (gBS != NULL);
Status = gBS->CloseEvent (_mDriverExitBootServicesNotifyEvent);
ASSERT_EFI_ERROR (Status);
}
#endif
ProcessLibraryDestructorList (ImageHandle, gST);
}
//
// Return the status from the driver specific unload handler
//
return Status;
}
/**
Entry point to UEFI Application.
This function is the entry point for a UEFI Application. This function must call
ProcessLibraryConstructorList(), ProcessModuleEntryPointList(), and ProcessLibraryDestructorList().
The return value from ProcessModuleEntryPointList() is returned.
If _gUefiDriverRevision is not zero and SystemTable->Hdr.Revision is less than _gUefiDriverRevison,
then return EFI_INCOMPATIBLE_VERSION.
@param ImageHandle The image handle of the UEFI Application.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The UEFI Application exited normally.
@retval EFI_INCOMPATIBLE_VERSION _gUefiDriverRevision is greater than SystemTable->Hdr.Revision.
@retval Other Return value from ProcessModuleEntryPointList().
**/
EFI_STATUS
EFIAPI
_ModuleEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
if (_gUefiDriverRevision != 0) {
//
// Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the application.
//
if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {
return EFI_INCOMPATIBLE_VERSION;
}
}
//
// Call constructor for all libraries.
//
ProcessLibraryConstructorList (ImageHandle, SystemTable);
//
// Call the module's entry point
//
Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);
//
// Process destructor for all libraries.
//
ProcessLibraryDestructorList (ImageHandle, SystemTable);
//
// Return the return status code from the driver entry point
//
return Status;
}
/**
Enrty point to DXE SMM Driver.
@param ImageHandle ImageHandle of the loaded driver.
@param SystemTable Pointer to the EFI System Table.
@retval EFI_SUCCESS One or more of the drivers returned a success code.
@retval !EFI_SUCESS The return status from the last driver entry point in the list.
**/
EFI_STATUS
EFIAPI
_ModuleEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
EFI_SMM_BASE_PROTOCOL *SmmBase;
BOOLEAN InSmm;
EFI_DEVICE_PATH_PROTOCOL *CompleteFilePath;
EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath;
EFI_HANDLE Handle;
//
// Cache a pointer to the Boot Services Table
//
gBS = SystemTable->BootServices;
//
// Retrieve SMM Base Protocol
//
Status = gBS->LocateProtocol (
&gEfiSmmBaseProtocolGuid,
NULL,
(VOID **) &SmmBase
);
ASSERT_EFI_ERROR (Status);
//
// Check to see if we are already in SMM
//
SmmBase->InSmm (SmmBase, &InSmm);
//
//
//
if (!InSmm) {
//
// Retrieve the Loaded Image Protocol
//
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID*)&LoadedImage
);
ASSERT_EFI_ERROR (Status);
//
// Retrieve the Device Path Protocol from the DeviceHandle from which this driver was loaded
//
Status = gBS->HandleProtocol (
LoadedImage->DeviceHandle,
&gEfiDevicePathProtocolGuid,
(VOID*)&ImageDevicePath
);
ASSERT_EFI_ERROR (Status);
//
// Build the full device path to the currently execuing image
//
CompleteFilePath = SmmAppendDevicePath (ImageDevicePath, LoadedImage->FilePath);
//
// Load the image in memory to SMRAM; it will automatically generate the
// SMI.
//
Status = SmmBase->Register (SmmBase, CompleteFilePath, LoadedImage->ImageBase, 0, &Handle, FALSE);
ASSERT_EFI_ERROR (Status);
//
// Optionally install the unload handler
//
if (_gDriverUnloadImageCount > 0) {
Status = gBS->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage
);
ASSERT_EFI_ERROR (Status);
LoadedImage->Unload = _DriverUnloadHandler;
}
return Status;
}
//
// Call constructor for all libraries
//
ProcessLibraryConstructorList (ImageHandle, SystemTable);
//
// Call the list of driver entry points
//
Status = ProcessModuleEntryPointList (ImageHandle, SystemTable);
if (EFI_ERROR (Status)) {
ProcessLibraryDestructorList (ImageHandle, SystemTable);
}
return Status;
}
/**
Enrty point to DXE Driver.
@param ImageHandle ImageHandle of the loaded driver.
@param SystemTable Pointer to the EFI System Table.
@retval EFI_SUCCESS One or more of the drivers returned a success code.
@retval !EFI_SUCESS The return status from the last driver entry point in the list.
**/
EFI_STATUS
EFIAPI
_ModuleEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
// if (_gUefiDriverRevision != 0) {
// //
// // Make sure that the EFI/UEFI spec revision of the platform is >= EFI/UEFI spec revision of the driver
// //
// if (SystemTable->Hdr.Revision < _gUefiDriverRevision) {
// return EFI_INCOMPATIBLE_VERSION;
// }
// }
// DEBUG ((EFI_D_ERROR, "EdkII Glue Driver Entry - 0\n"));
//
// Call constructor for all libraries
//
ProcessLibraryConstructorList (ImageHandle, SystemTable);
//
// Register our ExitBootServices () notify function
//
#if __EDKII_GLUE_HAVE_DRIVER_EXIT_BOOT_SERVICES_EVENT__
if (_gDriverExitBootServicesEvent[0] != NULL) {
Status = SystemTable->BootServices->CreateEvent (
EFI_EVENT_SIGNAL_EXIT_BOOT_SERVICES,
EFI_TPL_NOTIFY,
_DriverExitBootServices,
NULL,
&_mDriverExitBootServicesNotifyEvent
);
ASSERT_EFI_ERROR (Status);
}
#endif
//
// Install unload handler...
//
//
// Add conditional macro to save size. The 4 macros check against
// potential functions which may be invoked, if there is no function
// to be called, we don't register Unload callback.
//
#if ( defined(__EDKII_GLUE_MODULE_UNLOAD_HANDLER__) \
|| defined(__EDKII_GLUE_UEFI_DRIVER_MODEL_LIB__) \
|| defined(__EDKII_GLUE_EDK_DXE_RUNTIME_DRIVER_LIB__) ) \
|| __EDKII_GLUE_HAVE_DRIVER_EXIT_BOOT_SERVICES_EVENT__
do {
EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;
Status = SystemTable->BootServices->HandleProtocol (
ImageHandle,
&gEfiLoadedImageProtocolGuid,
(VOID **)&LoadedImage
);
ASSERT_EFI_ERROR (Status);
LoadedImage->Unload = _DriverUnloadHandler;
} while(0);
#endif
//
// Call the driver entry point
//
#ifdef __EDKII_GLUE_MODULE_ENTRY_POINT__
Status = (__EDKII_GLUE_MODULE_ENTRY_POINT__ (ImageHandle, SystemTable));
#else
Status = EFI_SUCCESS;
#endif
//
// If all of the drivers returned errors, then invoke all of the library destructors
//
if (EFI_ERROR (Status)) {
//
// Close our ExitBootServices () notify function
//
#if __EDKII_GLUE_HAVE_DRIVER_EXIT_BOOT_SERVICES_EVENT__
if (_gDriverExitBootServicesEvent[0] != NULL) {
EFI_STATUS CloseEventStatus;
CloseEventStatus = SystemTable->BootServices->CloseEvent (_mDriverExitBootServicesNotifyEvent);
ASSERT_EFI_ERROR (CloseEventStatus);
}
#endif
ProcessLibraryDestructorList (ImageHandle, SystemTable);
}
//
// Return the cummalative return status code from all of the driver entry points
//
return Status;
}