From f215e02bf85f68d3a6106c2a1f4f7f063f819064 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:17:27 +0200 Subject: Adding upstream version 7.0.14-dfsg. Signed-off-by: Daniel Baumann --- .../bootsectors/bootsector-shutdown.asm | 90 ++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 src/VBox/ValidationKit/bootsectors/bootsector-shutdown.asm (limited to 'src/VBox/ValidationKit/bootsectors/bootsector-shutdown.asm') diff --git a/src/VBox/ValidationKit/bootsectors/bootsector-shutdown.asm b/src/VBox/ValidationKit/bootsectors/bootsector-shutdown.asm new file mode 100644 index 00000000..93ab5ff4 --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bootsector-shutdown.asm @@ -0,0 +1,90 @@ +; $Id: bootsector-shutdown.asm $ +;; @file +; Bootsector for grub chainloading that shutdowns the VM. +; + +; +; 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 . +; +; 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 "VBox/bios.mac" + + +BITS 16 +start: + ; Start with a jump just to follow the convention. + jmp short the_code + nop +times 3ah db 0 + +the_code: + cli + + ; + ; VBox/Bochs shutdown request - write "Shutdown" byte by byte to shutdown port. + ; + mov cx, 64 + mov dx, VBOX_BIOS_SHUTDOWN_PORT + mov bx, VBOX_BIOS_OLD_SHUTDOWN_PORT +retry: + mov al, 'S' + out dx, al + mov al, 'h' + out dx, al + mov al, 'u' + out dx, al + mov al, 't' + out dx, al + mov al, 'd' + out dx, al + mov al, 'o' + out dx, al + mov al, 'w' + out dx, al + mov al, 'n' + out dx, al + xchg dx, bx ; alternate between the new (VBox) and old (Bochs) ports. + loop retry + + ; + ; Shutdown failed! + ; + + ;; @todo print some message before halting. + hlt + + ; + ; Padd the remainder of the sector with zeros and + ; end it with the dos signature. + ; +padding: +times 510 - (padding - start) db 0 + db 055h, 0aah + -- cgit v1.2.3