1 | ; $Id: bootsector2-triple-fault-1.asm 82968 2020-02-04 10:35:17Z vboxsync $
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2 | ;; @file
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3 | ; Bootsector for testing triple faults.
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4 | ;
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5 |
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6 | ;
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7 | ; Copyright (C) 2007-2020 Oracle Corporation
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8 | ;
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9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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10 | ; available from http://www.virtualbox.org. This file is free software;
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11 | ; you can redistribute it and/or modify it under the terms of the GNU
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12 | ; General Public License (GPL) as published by the Free Software
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13 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | ;
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17 | ; The contents of this file may alternatively be used under the terms
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18 | ; of the Common Development and Distribution License Version 1.0
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19 | ; (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | ; VirtualBox OSE distribution, in which case the provisions of the
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21 | ; CDDL are applicable instead of those of the GPL.
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22 | ;
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23 | ; You may elect to license modified versions of this file under the
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24 | ; terms and conditions of either the GPL or the CDDL or both.
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25 | ;
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26 |
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27 |
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28 | %include "iprt/asmdefs.mac"
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29 | %include "iprt/x86.mac"
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30 | %include "VBox/VMMDevTesting.mac"
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31 |
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32 | ;; The number of instructions to test.
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33 | %define TEST_INSTRUCTION_COUNT_IO 2000000
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34 |
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35 | ;; The number of instructions to test.
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36 | %define TEST_INSTRUCTION_COUNT_MMIO 750000
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37 |
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38 | ;; Define this to drop unnecessary test variations.
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39 | %define QUICK_TEST
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40 |
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41 | ;
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42 | ; Include and execute the init code.
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43 | ;
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44 | %define BS2_INIT_RM
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45 | %define BS2_INC_PE16
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46 | %define BS2_INC_PE32
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47 | %define BS2_INC_PP32
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48 | %define BS2_INC_PAE32
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49 | %define BS2_INC_LM64
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50 | %include "bootsector2-common-init-code.mac"
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51 |
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52 |
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53 | ;
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54 | ; The test driver
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55 | ;
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56 | BEGINPROC main
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57 | ;
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58 | ; Test prologue.
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59 | ;
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60 | mov ax, .s_szTstName
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61 | call TestInit_r86
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62 | call Bs2EnableA20_r86
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63 |
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64 | ;
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65 | ; Did we get here from a reboot triggered below?
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66 | ;
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67 | push ds
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68 | mov ax, 2000h ; 128 KB is enough for the test program
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69 | .boot_check_loop:
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70 | mov ds, ax
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71 | cmp dword [0], 064726962h
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72 | jne .boot_check_next
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73 | cmp dword [4], 062697264h
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74 | je .warm_reset_broken
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75 |
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76 | .boot_check_next:
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77 | mov dword [0], 064726962h
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78 | mov dword [4], 062697264h
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79 | add ax, 1000h
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80 | cmp ax, 8000h
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81 | jbe .boot_check_loop
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82 | pop ds
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83 | jmp .fine
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84 |
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85 | .warm_reset_broken:
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86 | pop ds
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87 | mov ax, .s_szWarmResetBroken
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88 | call NAME(TestFailed_r86)
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89 | jmp .done
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90 | .s_szWarmResetBroken:
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91 | db 'Warm reset vector support is broken', 0dh, 0ah, 0
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92 | .fine:
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93 |
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94 | ;
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95 | ; Test that the warm reset interface works.
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96 | ;
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97 | mov ax, .s_szPrecondTest5
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98 | call NAME(TestSub_r86)
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99 | mov al, 05h
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100 | call NAME(SetWarmResetJmp)
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101 | cmp ax, 0
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102 | jne .precond_test_A
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103 | call NAME(TestReboot_r86)
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104 |
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105 | .precond_test_A:
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106 | mov ax, .s_szPrecondTestA
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107 | call NAME(TestSub_r86)
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108 | mov al, 0Ah
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109 | call NAME(SetWarmResetJmp)
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110 | cmp ax, 0
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111 | jne .precond_test_A_passed
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112 | call NAME(TestReboot_r86)
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113 | .precond_test_A_passed:
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114 | call NAME(TestSubDone_r86)
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115 |
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116 | ;
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117 | ; The real tests.
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118 | ;
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119 |
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120 |
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121 | ;
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122 | ; We're done.
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123 | ;
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124 | .done:
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125 | call NAME(TestTerm_r86)
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126 | call Bs2Panic
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127 |
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128 | .s_szTstName:
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129 | db 'tstTriple', 0
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130 | .s_szPrecondTest5:
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131 | db 'Shutdown Action 5', 0
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132 | .s_szPrecondTestA:
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133 | db 'Shutdown Action A', 0
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134 | ENDPROC main
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135 |
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136 |
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137 |
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138 | ;;
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139 | ; Sets up the warm reset vector.
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140 | ;
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141 | ; @param ax Where to resume exeuction.
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142 | ; @param dl Shutdown action command to use, 5h or Fh.
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143 | ;
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144 | ; @uses nothing
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145 | ;
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146 | BEGINPROC SetUpWarmReset
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147 | push bp
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148 | mov bp, sp
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149 | push eax
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150 | push ebx
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151 | push ecx
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152 | push edx
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153 | push edi
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154 | push esi
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155 | push es
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156 |
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157 | ;
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158 | ; Set up the warm reboot vector.
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159 | ;
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160 | mov bx, 40h
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161 | mov es, bx
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162 |
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163 | mov ecx, [es:67h] ; debug
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164 | mov word [es:67h], ax
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165 | mov bx, cs
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166 | mov word [es:67h+2], bx
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167 |
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168 | mov bx, [es:72h] ; debug
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169 | mov word [es:72h], 1234h ; warm reboot
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170 |
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171 | wbinvd
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172 |
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173 | mov al, 0fh
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174 | out 70h, al ; set register index
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175 | in al, 71h
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176 | mov ah, al ; debug
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177 | mov al, dl ; shutdown action command
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178 | out 71h, al ; set cmos[f] = a - invoke testResume as early as possible.
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179 | in al, 71h ; debug / paranoia
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180 | movzx si, al
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181 |
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182 | ; Debug print.
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183 | %if 1
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184 | mov di, sp ; save sp (lazy bird)
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185 | in al, 64h
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186 | push ax ; kbd status
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187 | push si ; cmos[f] after
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188 | mov al, ah ; cmos[f] before
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189 | push ax
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190 | push word [0472h] ; 40:72 word after
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191 | push bx ; 40:72 word before
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192 | push word [0467h] ; 40:67 far addr after
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193 | push word [0469h]
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194 | push cx ; 40:67 far addr before
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195 | shr ecx, 16
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196 | push dx
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197 | push ds
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198 | push .s_szDebugFmt
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199 | call NAME(PrintF_r86)
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200 | mov sp, di ; restore sp.
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201 | ;.forever:
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202 | ; cli
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203 | ; hlt
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204 | ; jmp .forever
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205 | %endif
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206 |
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207 | pop es
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208 | pop esi
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209 | pop edi
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210 | pop edx
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211 | pop ecx
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212 | pop ebx
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213 | pop eax
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214 | leave
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215 | ret
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216 |
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217 | .s_szDebugFmt:
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218 | db 'dbg: 40:67=%RX16:%RX16 (%RX16:%RX16) 40:72=%RX16 (%RX16) cmos[f]=%RX8 (%RX8) kbdsts=%RX8', 0dh, 0ah, 0
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219 | ENDPROC SetUpWarmReset
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220 |
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221 |
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222 | ;;
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223 | ; Sets up the warm reset vector.
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224 | ;
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225 | ; @returns ax = 0 on setup call, ax = 1 on resume return.
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226 | ; @param al Shutdown action command to use, 5h or Fh.
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227 | ; @uses ax
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228 | ;
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229 | BEGINPROC SetWarmResetJmp
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230 | push bp
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231 | mov bp, sp
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232 | push dx
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233 |
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234 | mov dl, al
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235 | mov ax, .resume
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236 | call NAME(SetUpWarmReset)
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237 |
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238 | %ifdef DEBUG
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239 | push cs
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240 | push .s_szDbg1
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241 | call NAME(PrintF_r86)
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242 | add sp, 4
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243 | %endif
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244 |
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245 | mov ax, .s_ResumeRegs
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246 | call NAME(TestSaveRegisters_r86)
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247 |
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248 | %ifdef DEBUG
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249 | push cs
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250 | push .s_szDbg2
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251 | call NAME(PrintF_r86)
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252 | add sp, 4
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253 | %endif
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254 |
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255 | mov dx, [bp - 2]
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256 | mov [.s_ResumeRegs + BS2REGS.rdx], dx
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257 | mov ax, bp
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258 | add ax, 4
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259 | mov [.s_ResumeRegs + BS2REGS.rsp], ax
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260 | mov ax, [bp]
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261 | mov [.s_ResumeRegs + BS2REGS.rbp], ax
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262 | mov ax, [bp + 2]
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263 | mov [.s_ResumeRegs + BS2REGS.rip], ax
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264 | mov word [.s_ResumeRegs + BS2REGS.rax], 1
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265 |
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266 | %ifdef DEBUG
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267 | push cs
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268 | push .s_szDbg3
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269 | call NAME(PrintF_r86)
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270 | add sp, 4
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271 | %endif
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272 |
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273 | xor ax, ax
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274 | .done:
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275 | pop dx
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276 | leave
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277 | ret
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278 |
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279 | .resume:
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280 | cli
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281 | xor ax, ax
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282 | mov ds, ax
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283 | mov es, ax
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284 | mov ax, [.s_ResumeRegs + BS2REGS.ss]
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285 | mov ss, ax
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286 | mov esp, [.s_ResumeRegs + BS2REGS.rsp]
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287 | mov ebp, [.s_ResumeRegs + BS2REGS.rbp]
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288 |
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289 | %ifdef DEBUG
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290 | push ds
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291 | push .s_szDbg4
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292 | call NAME(PrintF_r86)
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293 | add sp, 4
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294 | %endif
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295 |
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296 | mov ax, .s_ResumeRegs
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297 | call NAME(TestRestoreRegisters_r86)
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298 | mov ax, [.s_ResumeRegs + BS2REGS.rip]
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299 | push ax
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300 | mov ax, 1
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301 | ret
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302 | ;jmp word [.s_ResumeRegs + BS2REGS.rip]
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303 |
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304 | .s_ResumeRegs:
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305 | times (BS2REGS_size) db 0
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306 | %ifdef DEBUG
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307 | .s_szDbg1:
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308 | db 'dbg 1', 0dh, 0ah, 0
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309 | .s_szDbg2:
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310 | db 'dbg 2', 0dh, 0ah, 0
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311 | .s_szDbg3:
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312 | db 'dbg 3', 0dh, 0ah, 0
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313 | .s_szDbg4:
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314 | db 'dbg 4', 0dh, 0ah, 0
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315 | %endif
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316 | ENDPROC SetWarmResetJmp
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317 |
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318 |
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319 | ;;
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320 | ; Reboot the machine. Will not return.
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321 | ;
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322 | BEGINPROC TestReboot_r86
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323 | %ifdef DEBUG
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324 | ; Debug
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325 | push ds
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326 | push .s_szDbg
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327 | call NAME(PrintF_r86)
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328 | %endif
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329 | ; Via port A
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330 | in al, 92h
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331 | and al, ~1
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332 | out 92h, al
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333 | or al, 1
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334 | out 92h, al
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335 | in al, 92h
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336 | .forever:
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337 | cli
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338 | hlt
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339 | jmp .forever
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340 | %ifdef DEBUG
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341 | .s_szDbg:
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342 | db 'Rebooting...', 0dh, 0ah, 0
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343 | %endif
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344 | ENDPROC TestReboot_r86
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345 |
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346 |
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347 | ;
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348 | ; Instantiate the template code.
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349 | ;
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350 | %include "bootsector2-template-footer.mac" ; reset the initial environemnt.
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351 |
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352 | ;%define TMPL_RM
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353 | ;%include "bootsector2-test1-template.mac"
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354 | ;%define TMPL_CMN_V86
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355 | ;%include "bootsector2-test1-template.mac"
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356 | ;%define TMPL_PE16
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357 | ;%include "bootsector2-test1-template.mac"
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358 | ;%define TMPL_PE32
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359 | ;%include "bootsector2-test1-template.mac"
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360 | ;%define TMPL_PP16
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361 | ;%include "bootsector2-test1-template.mac"
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362 | ;%define TMPL_PP32
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363 | ;%include "bootsector2-test1-template.mac"
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364 | ;%define TMPL_PAE16
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365 | ;%include "bootsector2-test1-template.mac"
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366 | ;%define TMPL_PAE32
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367 | ;%include "bootsector2-test1-template.mac"
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368 | ;%define TMPL_LM16
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369 | ;%include "bootsector2-test1-template.mac"
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370 | ;%define TMPL_LM32
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371 | ;%include "bootsector2-test1-template.mac"
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372 | ;%define TMPL_LM64
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373 | ;%include "bootsector2-test1-template.mac"
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374 |
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375 |
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376 | ;
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377 | ; End sections and image.
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378 | ;
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379 | %include "bootsector2-common-end.mac"
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380 |
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