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 --- .../bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm | 78 ++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm (limited to 'src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm') diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm new file mode 100644 index 00000000..08c089db --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-TestIsVmmDevTestingPresent.asm @@ -0,0 +1,78 @@ +; $Id: bs3-cmn-TestIsVmmDevTestingPresent.asm $ +;; @file +; BS3Kit - bs3TestIsVmmDevTestingPresent +; + +; +; 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 "bs3kit-template-header.mac" +%include "VBox/VMMDevTesting.mac" + +;********************************************************************************************************************************* +;* External Symbols * +;********************************************************************************************************************************* +BS3_EXTERN_DATA16 g_uBs3CpuDetected +TMPL_BEGIN_TEXT + + +;; +; @cproto BS3_DECL(bool) bs3TestIsVmmDevTestingPresent_c16(void); +; +BS3_PROC_BEGIN_CMN bs3TestIsVmmDevTestingPresent, BS3_PBC_HYBRID_0_ARGS + BS3_CALL_CONV_PROLOG 2 + push xBP + mov xBP, xSP + push xDX + + ; Check the response from the NOP port. + mov dx, VMMDEV_TESTING_IOPORT_NOP + cmp byte [g_uBs3CpuDetected], BS3CPU_80386 + jb .ancient_cpu + in eax, dx + cmp eax, VMMDEV_TESTING_NOP_RET +.set_ax_and_return: + mov ax, 0 + jne .return + mov ax, 1 + +.return: + pop xDX + pop xBP + BS3_CALL_CONV_EPILOG 2 + BS3_HYBRID_RET + +.ancient_cpu: + in ax, dx + cmp ax, (VMMDEV_TESTING_NOP_RET & 0xffff) + jmp .set_ax_and_return +BS3_PROC_END_CMN bs3TestIsVmmDevTestingPresent + -- cgit v1.2.3