1 files changed, 63 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-Shutdown.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-Shutdown.asm
new file mode 100644
index 00000000..fbe82287
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-Shutdown.asm
@@ -0,0 +1,63 @@
+; $Id: bs3-cmn-Shutdown.asm $
+;; @file
+; BS3Kit - Bs3Shutdown
+;
+
+;
+; Copyright (C) 2007-2023 Oracle and/or its affiliates.
+;
+; This file is part of VirtualBox base platform packages, as
+; available from https://www.virtualbox.org.
+;
+; This program 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, in version 3 of the
+; License.
+;
+; This program 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 this program; if not, see <https://www.gnu.org/licenses>.
+;
+; The contents of this file may alternatively be used under the terms
+; of the Common Development and Distribution License Version 1.0
+; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+; in the VirtualBox distribution, in which case the provisions of the
+; CDDL are applicable instead of those of the GPL.
+;
+; You may elect to license modified versions of this file under the
+; terms and conditions of either the GPL or the CDDL or both.
+;
+; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+;
+
+%include "bs3kit-template-header.mac"
+%include "VBox/bios.mac"
+
+BS3_EXTERN_CMN Bs3Panic
+
+BS3_PROC_BEGIN_CMN Bs3Shutdown, BS3_PBC_HYBRID_0_ARGS
+        cli
+%ifdef TMPL_16BIT
+        mov     ax, cs
+        mov     ds, ax
+%endif
+        mov     bl, 64
+        mov     dx, VBOX_BIOS_SHUTDOWN_PORT
+        mov     ax, VBOX_BIOS_OLD_SHUTDOWN_PORT
+.retry:
+        mov     ecx, 8
+        mov     esi, .s_szShutdown
+        rep outsb
+        xchg    ax, dx                  ; alternate between the new (VBox) and old (Bochs) ports.
+        dec     bl
+        jnz     .retry
+        ; Shutdown failed!
+        jmp     Bs3Panic
+.s_szShutdown:
+        db      'Shutdown', 0
+BS3_PROC_END_CMN Bs3Shutdown
+