Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 73 insertions, 0 deletions

diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SwitchToRing0.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SwitchToRing0.asm
new file mode 100644
index 00000000..fd3f1135
--- /dev/null
+++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-SwitchToRing0.asm
@@ -0,0 +1,73 @@
+; $Id: bs3-cmn-SwitchToRing0.asm $
+;; @file
+; BS3Kit - Bs3SwitchToRing0
+;
+
+;
+; 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
+;
+
+;*********************************************************************************************************************************
+;*  Header Files                                                                                                                 *
+;*********************************************************************************************************************************
+%include "bs3kit-template-header.mac"
+
+
+;*********************************************************************************************************************************
+;*  External Symbols                                                                                                             *
+;*********************************************************************************************************************************
+BS3_EXTERN_CMN_FAR Bs3SwitchToRingX
+TMPL_BEGIN_TEXT
+
+
+;;
+; @cproto   BS3_DECL(void) Bs3SwitchToRing0(void);
+;
+; @remarks  Does not require 20h of parameter scratch space in 64-bit mode.
+; @uses     No GPRs.
+;
+BS3_PROC_BEGIN_CMN Bs3SwitchToRing0, BS3_PBC_HYBRID_0_ARGS
+%if TMPL_BITS == 64
+        push    rcx
+        sub     rsp, 20h
+        mov     ecx, 0
+        mov     [rsp], rcx
+        call    Bs3SwitchToRingX
+        add     rsp, 20h
+        pop     rcx
+%else
+        push    0
+TONLY16 push    cs
+        call    Bs3SwitchToRingX
+        add     xSP, xCB
+%endif
+        BS3_HYBRID_RET
+BS3_PROC_END_CMN   Bs3SwitchToRing0
+