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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:17:27 +0000
commitf215e02bf85f68d3a6106c2a1f4f7f063f819064 (patch)
tree6bb5b92c046312c4e95ac2620b10ddf482d3fa8b /src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm
parentInitial commit. (diff)
downloadvirtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.tar.xz
virtualbox-f215e02bf85f68d3a6106c2a1f4f7f063f819064.zip
Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm')
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diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm
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@@ -0,0 +1,91 @@
+; $Id: bs3-first-init-all-lm64.asm $
+;; @file
+; BS3Kit - First Object, calling 32-bit paged protected mode main() after full init.
+;
+
+;
+; 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
+;
+
+
+;
+; Segment defs, grouping and related variables.
+; Defines the entry point 'start' as well, leaving us in BS3TEXT16.
+;
+%include "bs3-first-common.mac"
+
+extern NAME(Bs3InitAll_rm)
+extern NAME(Bs3SwitchToLM64_rm)
+extern NAME(Main_lm64)
+extern NAME(Bs3Shutdown_c64)
+extern BS3_DATA_NM(g_uBs3CpuDetected)
+extern NAME(Bs3PrintStrN_c16)
+extern NAME(Bs3Panic_c16)
+
+;; Entry point.
+ push word 0 ; zero return address.
+ push word 0 ; zero caller BP
+ mov bp, sp
+
+ ;
+ ; Init all while we're in real mode.
+ ;
+ mov ax, BS3_SEL_DATA16
+ mov es, ax
+ mov ds, ax
+ call NAME(Bs3InitAll_rm)
+
+ ;
+ ; Check that long mode is supported.
+ ;
+ test word [BS3_DATA_NM(g_uBs3CpuDetected)], BS3CPU_F_LONG_MODE
+ jnz .long_mode_supported
+ push .s_szLongModeError_End - .s_szLongModeError
+ push cs
+ push .s_szLongModeError wrt CGROUP16
+ call NAME(Bs3PrintStrN_c16)
+ call NAME(Bs3Panic_c16)
+.long_mode_supported:
+
+ ;
+ ; Switch to LM64 and call main.
+ ;
+ call _Bs3SwitchToLM64_rm
+ BITS 64
+ call NAME(Main_lm64)
+
+ ; Try shutdown if it returns.
+ call NAME(Bs3Shutdown_c64)
+
+.s_szLongModeError:
+ db 'BS3 Error! Long mode not supported!', 0ah, 0dh
+.s_szLongModeError_End:
+ db 00h
+