diff --git a/include/kernel/pwmgnt.h b/include/kernel/pwmgnt.h
new file mode 100644
index 0000000..03fe1de
--- /dev/null
+++ b/include/kernel/pwmgnt.h
@@ -0,0 +1,42 @@
+//----------------------------------------------------------------------------//
+//                           GNU GPL OS/K                                     //
+//                                                                            //
+//  Desc:  Power Management related functions                                 //
+//                                                                            //
+//                                                                            //
+//  Copyright © 2018-2019 The OS/K Team                                       //
+//                                                                            //
+//  This file is part of OS/K.                                                //
+//                                                                            //
+//  OS/K is free software: you can redistribute it and/or modify              //
+//  it under the terms of the GNU General Public License as published by      //
+//  the Free Software Foundation, either version 3 of the License, or         //
+//  any later version.                                                        //
+//                                                                            //
+//  OS/K is distributed in the hope that it will be useful,                   //
+//  but WITHOUT ANY WARRANTY//without even the implied warranty of            //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
+//  GNU General Public License for more details.                              //
+//                                                                            //
+//  You should have received a copy of the GNU General Public License         //
+//  along with OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
+//----------------------------------------------------------------------------//
+
+#ifndef _KALKERN_BASE_H
+#include <kernel/base.h>
+#endif
+
+#ifndef _KALKERN_IDT_H
+#define _KALKERN_IDT_H
+
+//----------------------------------------------------------------------------//
+
+void PoShutdownQemu(void);
+
+void PoShutdownVirtualbox(void);
+
+void PoShutdownBochs(void);
+
+//----------------------------------------------------------------------------//
+
+#endif
diff --git a/kaleid/kernel/po/shtdwn.c b/kaleid/kernel/po/shtdwn.c
new file mode 100644
index 0000000..364621b
--- /dev/null
+++ b/kaleid/kernel/po/shtdwn.c
@@ -0,0 +1,54 @@
+//----------------------------------------------------------------------------//
+//                           GNU GPL OS/K                                     //
+//                                                                            //
+//  Desc:  Shutdown related function                                          //
+//                                                                            //
+//                                                                            //
+//  Copyright © 2018-2019 The OS/K Team                                       //
+//                                                                            //
+//  This file is part of OS/K.                                                //
+//                                                                            //
+//  OS/K is free software: you can redistribute it and/or modify              //
+//  it under the terms of the GNU General Public License as published by      //
+//  the Free Software Foundation, either version 3 of the License, or         //
+//  any later version.                                                        //
+//                                                                            //
+//  OS/K is distributed in the hope that it will be useful,                   //
+//  but WITHOUT ANY WARRANTY//without even the implied warranty of            //
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the             //
+//  GNU General Public License for more details.                              //
+//                                                                            //
+//  You should have received a copy of the GNU General Public License         //
+//  along with OS/K.  If not, see <https://www.gnu.org/licenses/>.            //
+//----------------------------------------------------------------------------//
+
+#include <kernel/base.h>
+#include <kernel/iomisc.h>
+#include <kernel/time.h>
+
+void PoShutdownQemu(void)
+{
+    KernLog("Shutdown QEMU at %s...\n", IoGetRtcTimeChar());
+
+    IoRtcWait(1000);
+
+    IoWriteWordOnPort(0x604, 0x2000);
+};
+
+void PoShutdownVirtualbox(void)
+{
+    KernLog("Shutdown VirtualBox at %s...\n", IoGetRtcTimeChar());
+
+    IoRtcWait(1000);
+
+    IoWriteWordOnPort(0x4004, 0x3400);
+};
+
+void PoShutdownBochs(void)
+{
+    KernLog("Shutdown Bochs at %s...\n", IoGetRtcTimeChar());
+
+    IoRtcWait(1000);
+
+    IoWriteWordOnPort(0xB004, 0x2000);
+};