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; $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
|
