#include #include EFI_STATUS efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab) { SIMPLE_TEXT_OUTPUT_INTERFACE *conout; InitializeLib(image, systab); conout = systab->ConOut; uefi_call_wrapper(conout->OutputString, 2, conout, L"Hello World!\r\n"); return EFI_SUCCESS; }