/**
Initialize OEM status code device .
@return Always return EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
OemHookStatusCodeInitialize (
VOID
)
{
PEI_NT_THUNK_PPI *NtThunkPpi;
EFI_STATUS Status;
//
// Locate NtThunkPpi for retrieving standard output handle
//
Status = PeiServicesLocatePpi (
&gPeiNtThunkPpiGuid,
0,
NULL,
(VOID **) &NtThunkPpi
);
ASSERT_EFI_ERROR (Status);
mWinNt = (EFI_WIN_NT_THUNK_PROTOCOL *) NtThunkPpi->NtThunk ();
//
// Cache standard output handle.
//
mStdOut = mWinNt->GetStdHandle (STD_OUTPUT_HANDLE);
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
PeimInitializeWinNtStuff (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Perform a call-back into the SEC simulator to get NT Stuff
Arguments:
PeiServices - General purpose services available to every PEIM.
Returns:
None
--*/
// TODO: FfsHeader - add argument and description to function comment
{
EFI_STATUS Status;
EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
PEI_NT_THUNK_PPI *PeiNtService;
UINT64 InterfaceSize;
EFI_PHYSICAL_ADDRESS InterfaceBase;
Status = (**PeiServices).LocatePpi (
PeiServices,
&gPeiNtThunkPpiGuid, // GUID
0, // INSTANCE
&PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
&PeiNtService // PPI
);
ASSERT_PEI_ERROR (PeiServices, Status);
Status = PeiNtService->NtThunk (&InterfaceSize, &InterfaceBase);
ASSERT_PEI_ERROR (PeiServices, Status);
Status = PeiBuildHobGuidData (
PeiServices,
&mEfiPeiWinNtThunkProtocolGuid, // Guid
&InterfaceBase, // Buffer
(UINTN) InterfaceSize // BufferSize
);
return Status;
}
EFI_STATUS
EFIAPI
PeimInitializeWinNtThunkPPIToProtocolPeim (
IN EFI_FFS_FILE_HEADER *FfsHeader,
IN EFI_PEI_SERVICES **PeiServices
)
/*++
Routine Description:
Perform a call-back into the SEC simulator to get NT Stuff
Arguments:
PeiServices - General purpose services available to every PEIM.
Returns:
None
--*/
// TODO: FfsHeader - add argument and description to function comment
{
EFI_STATUS Status;
EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
PEI_NT_THUNK_PPI *PeiNtService;
VOID *Ptr;
DEBUG ((EFI_D_ERROR, "NT 32 WinNT Stuff PEIM Loaded\n"));
Status = (**PeiServices).LocatePpi (
(const EFI_PEI_SERVICES **)PeiServices,
&gPeiNtThunkPpiGuid, // GUID
0, // INSTANCE
&PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
(VOID**)&PeiNtService // PPI
);
ASSERT_EFI_ERROR (Status);
Ptr = PeiNtService->NtThunk ();
BuildGuidDataHob (
&gEfiWinNtThunkProtocolGuid, // Guid
&Ptr, // Buffer
sizeof (VOID *) // Sizeof Buffer
);
return Status;
}