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Diffstat (limited to '')
-rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm | 91 |
1 files changed, 91 insertions, 0 deletions
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 new file mode 100644 index 00000000..21227cf9 --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-first-init-all-lm64.asm @@ -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 + |