| 1 | ; $Id: bs3-first-init-all-lm64.asm 83017 2020-02-07 13:12:36Z vboxsync $
|
|---|
| 2 | ;; @file
|
|---|
| 3 | ; BS3Kit - First Object, calling 32-bit paged protected mode main() after full init.
|
|---|
| 4 | ;
|
|---|
| 5 |
|
|---|
| 6 | ;
|
|---|
| 7 | ; Copyright (C) 2007-2020 Oracle Corporation
|
|---|
| 8 | ;
|
|---|
| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | ; available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | ; General Public License (GPL) as published by the Free Software
|
|---|
| 13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | ;
|
|---|
| 17 | ; The contents of this file may alternatively be used under the terms
|
|---|
| 18 | ; of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | ; VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | ; CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | ;
|
|---|
| 23 | ; You may elect to license modified versions of this file under the
|
|---|
| 24 | ; terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | ;
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | ;
|
|---|
| 29 | ; Segment defs, grouping and related variables.
|
|---|
| 30 | ; Defines the entry point 'start' as well, leaving us in BS3TEXT16.
|
|---|
| 31 | ;
|
|---|
| 32 | %include "bs3-first-common.mac"
|
|---|
| 33 |
|
|---|
| 34 | extern NAME(Bs3InitAll_rm)
|
|---|
| 35 | extern NAME(Bs3SwitchToLM64_rm)
|
|---|
| 36 | extern NAME(Main_lm64)
|
|---|
| 37 | extern NAME(Bs3Shutdown_c64)
|
|---|
| 38 | extern BS3_DATA_NM(g_uBs3CpuDetected)
|
|---|
| 39 | extern NAME(Bs3PrintStrN_c16)
|
|---|
| 40 | extern NAME(Bs3Panic_c16)
|
|---|
| 41 |
|
|---|
| 42 | ;; Entry point.
|
|---|
| 43 | push word 0 ; zero return address.
|
|---|
| 44 | push word 0 ; zero caller BP
|
|---|
| 45 | mov bp, sp
|
|---|
| 46 |
|
|---|
| 47 | ;
|
|---|
| 48 | ; Init all while we're in real mode.
|
|---|
| 49 | ;
|
|---|
| 50 | mov ax, BS3_SEL_DATA16
|
|---|
| 51 | mov es, ax
|
|---|
| 52 | mov ds, ax
|
|---|
| 53 | call NAME(Bs3InitAll_rm)
|
|---|
| 54 |
|
|---|
| 55 | ;
|
|---|
| 56 | ; Check that long mode is supported.
|
|---|
| 57 | ;
|
|---|
| 58 | test word [BS3_DATA_NM(g_uBs3CpuDetected)], BS3CPU_F_LONG_MODE
|
|---|
| 59 | jnz .long_mode_supported
|
|---|
| 60 | push .s_szLongModeError_End - .s_szLongModeError
|
|---|
| 61 | push cs
|
|---|
| 62 | push .s_szLongModeError wrt CGROUP16
|
|---|
| 63 | call NAME(Bs3PrintStrN_c16)
|
|---|
| 64 | call NAME(Bs3Panic_c16)
|
|---|
| 65 | .long_mode_supported:
|
|---|
| 66 |
|
|---|
| 67 | ;
|
|---|
| 68 | ; Switch to LM64 and call main.
|
|---|
| 69 | ;
|
|---|
| 70 | call _Bs3SwitchToLM64_rm
|
|---|
| 71 | BITS 64
|
|---|
| 72 | call NAME(Main_lm64)
|
|---|
| 73 |
|
|---|
| 74 | ; Try shutdown if it returns.
|
|---|
| 75 | call NAME(Bs3Shutdown_c64)
|
|---|
| 76 |
|
|---|
| 77 | .s_szLongModeError:
|
|---|
| 78 | db 'BS3 Error! Long mode not supported!', 0ah, 0dh
|
|---|
| 79 | .s_szLongModeError_End:
|
|---|
| 80 | db 00h
|
|---|
| 81 |
|
|---|
