1 | /* $Id: DevPcBios.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * DevPcBios - PC BIOS Device.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | /*********************************************************************************************************************************
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30 | * Header Files *
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31 | *********************************************************************************************************************************/
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32 | #define LOG_GROUP LOG_GROUP_DEV_PC_BIOS
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33 | #include <VBox/vmm/pdmdev.h>
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34 | #include <VBox/vmm/pdmstorageifs.h>
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35 | #include <VBox/vmm/mm.h>
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36 | #include <VBox/vmm/pgm.h>
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37 | #include <VBox/vmm/cpum.h>
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38 |
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39 | #include <VBox/log.h>
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40 | #include <iprt/asm.h>
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41 | #include <iprt/assert.h>
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42 | #include <iprt/buildconfig.h>
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43 | #include <iprt/file.h>
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44 | #include <iprt/mem.h>
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45 | #include <iprt/string.h>
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46 | #include <iprt/uuid.h>
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47 | #include <iprt/cdefs.h>
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48 | #include <VBox/bios.h>
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49 | #include <VBox/err.h>
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50 | #include <VBox/param.h>
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51 |
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52 | #include "VBoxDD.h"
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53 | #include "VBoxDD2.h"
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54 | #include "DevPcBios.h"
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55 | #include "DevFwCommon.h"
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56 |
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57 | #define NET_BOOT_DEVS 4
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58 |
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59 |
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60 | /** @page pg_devbios_cmos_assign CMOS Assignments (BIOS)
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61 | *
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62 | * The BIOS uses a CMOS to store configuration data.
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63 | * It is currently used as follows:
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64 | *
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65 | * @verbatim
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66 | First CMOS bank (offsets 0x00 to 0x7f):
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67 | Floppy drive type:
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68 | 0x10
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69 | Hard disk type (old):
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70 | 0x12
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71 | Equipment byte:
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72 | 0x14
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73 | Base memory:
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74 | 0x15
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75 | 0x16
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76 | Extended memory:
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77 | 0x17
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78 | 0x18
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79 | 0x30
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80 | 0x31
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81 | First IDE HDD:
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82 | 0x19
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83 | 0x1e - 0x25
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84 | Second IDE HDD:
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85 | 0x1a
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86 | 0x26 - 0x2d
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87 | Checksum of 0x10-0x2d:
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88 | 0x2e
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89 | 0x2f
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90 | Amount of memory above 16M and below 4GB in 64KB units:
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91 | 0x34
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92 | 0x35
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93 | Boot device (BOCHS BIOS specific):
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94 | 0x38
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95 | 0x3c
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96 | 0x3d
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97 | PXE debug:
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98 | 0x3f
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99 | First SATA HDD:
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100 | 0x40 - 0x47
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101 | Second SATA HDD:
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102 | 0x48 - 0x4f
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103 | Third SATA HDD:
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104 | 0x50 - 0x57
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105 | Fourth SATA HDD:
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106 | 0x58 - 0x5f
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107 | Number of CPUs:
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108 | 0x60
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109 | RAM above 4G in 64KB units:
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110 | 0x61 - 0x65
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111 | Third IDE HDD:
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112 | 0x67 - 0x6e
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113 | Fourth IDE HDD:
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114 | 0x70 - 0x77
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115 | APIC/x2APIC settings:
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116 | 0x78
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117 |
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118 | Second CMOS bank (offsets 0x80 to 0xff):
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119 | Reserved for internal use by PXE ROM:
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120 | 0x80 - 0x81
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121 | First net boot device PCI bus/dev/fn:
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122 | 0x82 - 0x83
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123 | Second to third net boot devices:
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124 | 0x84 - 0x89
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125 | First SCSI HDD:
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126 | 0x90 - 0x97
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127 | Second SCSI HDD:
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128 | 0x98 - 0x9f
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129 | Third SCSI HDD:
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130 | 0xa0 - 0xa7
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131 | Fourth SCSI HDD:
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132 | 0xa8 - 0xaf
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133 |
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134 | @endverbatim
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135 | *
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136 | * @todo Mark which bits are compatible with which BIOSes and
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137 | * which are our own definitions.
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138 | */
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139 |
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140 |
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141 | /*********************************************************************************************************************************
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142 | * Structures and Typedefs *
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143 | *********************************************************************************************************************************/
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144 |
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145 | /**
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146 | * The boot device.
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147 | */
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148 | typedef enum DEVPCBIOSBOOT
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149 | {
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150 | DEVPCBIOSBOOT_NONE,
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151 | DEVPCBIOSBOOT_FLOPPY,
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152 | DEVPCBIOSBOOT_HD,
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153 | DEVPCBIOSBOOT_DVD,
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154 | DEVPCBIOSBOOT_LAN
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155 | } DEVPCBIOSBOOT;
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156 |
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157 | /**
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158 | * PC Bios instance data structure.
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159 | */
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160 | typedef struct DEVPCBIOS
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161 | {
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162 | /** Pointer back to the device instance. */
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163 | PPDMDEVINS pDevIns;
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164 |
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165 | /** Boot devices (ordered). */
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166 | DEVPCBIOSBOOT aenmBootDevice[4];
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167 | /** Bochs control string index. */
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168 | uint32_t iControl;
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169 | /** Floppy device. */
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170 | char *pszFDDevice;
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171 | /** Harddisk device. */
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172 | char *pszHDDevice;
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173 | /** Sata harddisk device. */
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174 | char *pszSataDevice;
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175 | /** LUNs of the four BIOS-accessible SATA disks. */
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176 | uint32_t iSataHDLUN[4];
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177 | /** SCSI harddisk device. */
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178 | char *pszScsiDevice;
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179 | /** LUNs of the four BIOS-accessible SCSI disks. */
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180 | uint32_t iScsiHDLUN[4];
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181 | /** Bios message buffer. */
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182 | char szMsg[256];
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183 | /** Bios message buffer index. */
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184 | uint32_t iMsg;
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185 | /** The system BIOS ROM data. */
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186 | uint8_t *pu8PcBios;
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187 | /** The size of the system BIOS ROM. */
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188 | uint32_t cbPcBios;
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189 | /** The name of the BIOS ROM file. */
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190 | char *pszPcBiosFile;
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191 | /** The LAN boot ROM data. */
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192 | uint8_t *pu8LanBoot;
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193 | /** The name of the LAN boot ROM file. */
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194 | char *pszLanBootFile;
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195 | /** The size of the LAN boot ROM. */
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196 | uint64_t cbLanBoot;
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197 | /** The DMI tables. */
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198 | uint8_t au8DMIPage[0x1000];
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199 | /** The boot countdown (in seconds). */
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200 | uint8_t uBootDelay;
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201 | /** I/O-APIC enabled? */
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202 | uint8_t u8IOAPIC;
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203 | /** APIC mode to be set up by BIOS */
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204 | uint8_t u8APICMode;
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205 | /** PXE debug logging enabled? */
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206 | uint8_t u8PXEDebug;
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207 | /** Physical address of the MP table. */
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208 | uint32_t u32MPTableAddr;
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209 | /** PXE boot PCI bus/dev/fn list. */
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210 | uint16_t au16NetBootDev[NET_BOOT_DEVS];
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211 | /** Number of logical CPUs in guest */
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212 | uint16_t cCpus;
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213 | /* Physical address of PCI config space MMIO region. Currently unused. */
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214 | uint64_t u64McfgBase;
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215 | /* Length of PCI config space MMIO region. Currently unused. */
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216 | uint64_t cbMcfgLength;
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217 |
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218 | /** Firmware registration structure. */
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219 | PDMFWREG FwReg;
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220 | /** Dummy. */
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221 | PCPDMFWHLPR3 pFwHlpR3;
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222 | /** Number of soft resets we've logged. */
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223 | uint32_t cLoggedSoftResets;
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224 | /** Whether to consult the shutdown status (CMOS[0xf]) for deciding upon soft
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225 | * or hard reset. */
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226 | bool fCheckShutdownStatusForSoftReset;
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227 | /** Whether to clear the shutdown status on hard reset. */
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228 | bool fClearShutdownStatusOnHardReset;
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229 | /** Current port number for BIOS control (used by APM). */
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230 | RTIOPORT ControlPort;
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231 | /** True=use new port number for BIOS control (used by APM). */
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232 | bool fNewControlPort;
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233 | bool afPadding[3+4];
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234 | /** The BIOS I/O port, either at 0x040f or 0x8900
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235 | * (old saved state). */
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236 | IOMMMIOHANDLE hIoPortControl;
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237 | } DEVPCBIOS;
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238 | /** Pointer to the BIOS device state. */
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239 | typedef DEVPCBIOS *PDEVPCBIOS;
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240 |
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241 |
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242 | /*********************************************************************************************************************************
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243 | * Defined Constants And Macros *
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244 | *********************************************************************************************************************************/
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245 | /** The saved state version. */
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246 | #define PCBIOS_SSM_VERSION 0
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247 |
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248 |
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249 | /*********************************************************************************************************************************
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250 | * Global Variables *
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251 | *********************************************************************************************************************************/
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252 | /** Saved state DEVPCBIOS field descriptors. */
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253 | static SSMFIELD const g_aPcBiosFields[] =
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254 | {
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255 | SSMFIELD_ENTRY( DEVPCBIOS, fNewControlPort),
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256 | SSMFIELD_ENTRY_TERM()
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257 | };
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258 |
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259 |
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260 | /**
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261 | * @callback_method_impl{FNIOMIOPORTNEWIN, Bochs Debug.}
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262 | */
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263 | static DECLCALLBACK(VBOXSTRICTRC)
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264 | pcbiosIOPortDebugRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb)
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265 | {
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266 | RT_NOREF5(pDevIns, pvUser, offPort, pu32, cb);
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267 | return VERR_IOM_IOPORT_UNUSED;
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268 | }
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269 |
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270 |
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271 | /**
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272 | * @callback_method_impl{FNIOMIOPORTNEWOUT, Bochs Debug.}
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273 | */
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274 | static DECLCALLBACK(VBOXSTRICTRC)
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275 | pcbiosIOPortDebugWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
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276 | {
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277 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
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278 | RT_NOREF(pvUser);
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279 | Assert(offPort < 4);
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280 |
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281 | /*
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282 | * Bochs BIOS char printing.
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283 | */
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284 | if ( cb == 1
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285 | && ( offPort == 2
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286 | || offPort == 3))
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287 | {
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288 | /* The raw version. */
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289 | switch (u32)
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290 | {
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291 | case '\r': Log2(("pcbios: <return>\n")); break;
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292 | case '\n': Log2(("pcbios: <newline>\n")); break;
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293 | case '\t': Log2(("pcbios: <tab>\n")); break;
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294 | default: Log2(("pcbios: %c (%02x)\n", u32, u32)); break;
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295 | }
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296 |
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297 | /* The readable, buffered version. */
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298 | uint32_t iMsg = pThis->iMsg;
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299 | if (u32 == '\n' || u32 == '\r')
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300 | {
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301 | AssertStmt(iMsg < sizeof(pThis->szMsg), iMsg = sizeof(pThis->szMsg) - 1);
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302 | pThis->szMsg[iMsg] = '\0';
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303 | if (iMsg)
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304 | Log(("pcbios: %s\n", pThis->szMsg));
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305 | iMsg = 0;
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306 | }
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307 | else
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308 | {
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309 | if (iMsg >= sizeof(pThis->szMsg) - 1)
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310 | {
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311 | pThis->szMsg[iMsg] = '\0';
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312 | Log(("pcbios: %s\n", pThis->szMsg));
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313 | iMsg = 0;
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314 | }
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315 | pThis->szMsg[iMsg] = (char)u32;
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316 | pThis->szMsg[++iMsg] = '\0';
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317 | }
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318 | pThis->iMsg = iMsg;
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319 | return VINF_SUCCESS;
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320 | }
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321 |
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322 | /* not in use. */
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323 | return VINF_SUCCESS;
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324 | }
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325 |
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326 |
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327 | /**
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328 | * @callback_method_impl{FNIOMIOPORTNEWIN, BIOS control port.}
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329 | */
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330 | static DECLCALLBACK(VBOXSTRICTRC)
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331 | pcbiosIOPortControlRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb)
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332 | {
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333 | RT_NOREF5(pDevIns, pvUser, offPort, pu32, cb);
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334 | return VERR_IOM_IOPORT_UNUSED;
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335 | }
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336 |
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337 |
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338 | static VBOXSTRICTRC pcbiosApmShutdown(PPDMDEVINS pDevIns)
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339 | {
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340 | LogRel(("PcBios: APM shutdown request\n"));
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341 | return PDMDevHlpVMPowerOff(pDevIns);
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342 | }
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343 |
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344 |
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345 | static VBOXSTRICTRC pcbiosApmIdle(PPDMDEVINS pDevIns)
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346 | {
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347 | Log3(("PcBios: APM idle request\n"));
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348 |
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349 | /* This request is used to put the CPU into a halted state *without* using
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350 | * a HLT instruction. This is especially useful for the APM BIOS
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351 | * in situations where executing HLT causes problems. See BIOS APM source
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352 | * code for comments.
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353 | * NB: The CPU will be woken up by an interrupt regardless of the
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354 | * state of rFLAGS.IF.
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355 | */
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356 | int rc = PDMDevHlpVMWaitForDeviceReady(pDevIns, PDMDevHlpGetCurrentCpuId(pDevIns));
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357 | return rc;
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358 | }
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359 |
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360 | static void pcbiosReportBootFail(PPDMDEVINS pDevIns)
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361 | {
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362 | LogRel(("PcBios: Boot failure\n"));
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363 | int rc = PDMDevHlpVMSetRuntimeError(pDevIns, 0 /*fFlags*/, "VMBootFail",
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364 | N_("The VM failed to boot. This is possibly caused by not having an operating system installed or a misconfigured boot order. Maybe picking a guest OS install DVD will resolve the situation"));
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365 | AssertRC(rc);
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366 | }
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367 |
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368 |
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369 | /**
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370 | * @callback_method_impl{FNIOMIOPORTNEWOUT, BIOS control port.}
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371 | */
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372 | static DECLCALLBACK(VBOXSTRICTRC)
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373 | pcbiosIOPortControlWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
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374 | {
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375 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
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376 | RT_NOREF(pvUser, offPort);
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377 | Assert(offPort == 0);
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378 |
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379 | if (cb == 1)
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380 | {
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381 | static const unsigned char s_szShutdown[] = "Shutdown";
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382 | static const unsigned char s_szBootfail[] = "Bootfail";
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383 | static const unsigned char s_szProchalt[] = "Prochalt";
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384 | AssertCompile(sizeof(s_szShutdown) == sizeof(s_szBootfail));
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385 | AssertCompile(sizeof(s_szShutdown) == sizeof(s_szProchalt));
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386 |
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387 | if (pThis->iControl < sizeof(s_szShutdown)) /* paranoia */
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388 | {
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389 | if (u32 == s_szShutdown[pThis->iControl])
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390 | {
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391 |
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392 | pThis->iControl++;
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393 | if (pThis->iControl >= 8)
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394 | {
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395 | pThis->iControl = 0;
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396 | return pcbiosApmShutdown(pDevIns);
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397 | }
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398 | }
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399 | else if (u32 == s_szBootfail[pThis->iControl])
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400 | {
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401 | pThis->iControl++;
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402 | if (pThis->iControl >= 8)
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403 | {
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404 | pThis->iControl = 0;
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405 | pcbiosReportBootFail(pDevIns);
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406 | }
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407 | }
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408 | else if (u32 == s_szProchalt[pThis->iControl])
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409 | {
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410 |
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411 | pThis->iControl++;
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412 | if (pThis->iControl >= 8)
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413 | {
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414 | pThis->iControl = 0;
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415 | return pcbiosApmIdle(pDevIns);
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416 | }
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417 | }
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418 | else
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419 | pThis->iControl = 0;
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420 | }
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421 | else
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422 | pThis->iControl = 0;
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423 | }
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424 | else if (cb == 2)
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425 | {
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426 | pThis->iControl = 0;
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427 | /* Shortcuts for BIOS control, allowing guest to use one simple 16-bit I/O port write. */
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428 | switch (u32)
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429 | {
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430 | case VBOX_BIOS_CTL_SHUTDOWN:
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431 | return pcbiosApmShutdown(pDevIns);
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432 | case VBOX_BIOS_CTL_BOOTFAIL:
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433 | pcbiosReportBootFail(pDevIns);
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434 | break;
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435 | case VBOX_BIOS_CTL_PROCHALT:
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436 | return pcbiosApmIdle(pDevIns);
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437 | default:
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438 | /* Ignore and do nothing. */
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439 | LogFunc(("unrecognized control value (u32=%X)\n", u32));
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440 | }
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441 | }
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442 | /* else: not in use. */
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443 |
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444 | return VINF_SUCCESS;
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445 | }
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446 |
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447 |
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448 | /**
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449 | * Register the BIOS control port.
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450 | * This is used by pcbiosConstruct, pcbiosReset and pcbiosLoadExec.
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451 | */
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452 | static int pcbiosRegisterControl(PPDMDEVINS pDevIns, PDEVPCBIOS pThis, bool fNewControlPort)
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453 | {
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454 | if (pThis->ControlPort != 0)
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---|
455 | {
|
---|
456 | int rc = PDMDevHlpIoPortUnmap(pDevIns, pThis->hIoPortControl);
|
---|
457 | AssertRC(rc);
|
---|
458 | }
|
---|
459 |
|
---|
460 | pThis->fNewControlPort = fNewControlPort;
|
---|
461 | if (fNewControlPort)
|
---|
462 | pThis->ControlPort = VBOX_BIOS_SHUTDOWN_PORT;
|
---|
463 | else
|
---|
464 | pThis->ControlPort = VBOX_BIOS_OLD_SHUTDOWN_PORT;
|
---|
465 | return PDMDevHlpIoPortMap(pDevIns, pThis->hIoPortControl, pThis->ControlPort);
|
---|
466 | }
|
---|
467 |
|
---|
468 |
|
---|
469 | /**
|
---|
470 | * @callback_method_impl{FNSSMDEVSAVEEXEC}
|
---|
471 | */
|
---|
472 | static DECLCALLBACK(int) pcbiosSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
|
---|
473 | {
|
---|
474 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
475 | return pDevIns->pHlpR3->pfnSSMPutStruct(pSSM, pThis, g_aPcBiosFields);
|
---|
476 | }
|
---|
477 |
|
---|
478 |
|
---|
479 | /**
|
---|
480 | * @callback_method_impl{FNSSMDEVLOADPREP,
|
---|
481 | * Clears the fNewControlPort flag prior to loading the state so that old
|
---|
482 | * saved VM states keeps using the old port address (no pcbios state)}
|
---|
483 | */
|
---|
484 | static DECLCALLBACK(int) pcbiosLoadPrep(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
|
---|
485 | {
|
---|
486 | RT_NOREF(pSSM);
|
---|
487 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
488 |
|
---|
489 | /* Since there are legacy saved state files without any SSM data for PCBIOS
|
---|
490 | * this is the only way to handle them correctly. */
|
---|
491 | pThis->fNewControlPort = false;
|
---|
492 |
|
---|
493 | return VINF_SUCCESS;
|
---|
494 | }
|
---|
495 |
|
---|
496 |
|
---|
497 | /**
|
---|
498 | * @callback_method_impl{FNSSMDEVLOADEXEC}
|
---|
499 | */
|
---|
500 | static DECLCALLBACK(int) pcbiosLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
---|
501 | {
|
---|
502 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
503 |
|
---|
504 | if (uVersion > PCBIOS_SSM_VERSION)
|
---|
505 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
---|
506 | Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
|
---|
507 |
|
---|
508 | return pDevIns->pHlpR3->pfnSSMGetStruct(pSSM, pThis, g_aPcBiosFields);
|
---|
509 | }
|
---|
510 |
|
---|
511 |
|
---|
512 | /**
|
---|
513 | * @callback_method_impl{FNSSMDEVLOADDONE,
|
---|
514 | * Updates the shutdown port registration to match the flag loaded (or not).}
|
---|
515 | */
|
---|
516 | static DECLCALLBACK(int) pcbiosLoadDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
|
---|
517 | {
|
---|
518 | RT_NOREF(pSSM);
|
---|
519 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
520 | return pcbiosRegisterControl(pDevIns, pThis, pThis->fNewControlPort);
|
---|
521 | }
|
---|
522 |
|
---|
523 |
|
---|
524 | /**
|
---|
525 | * Write to CMOS memory.
|
---|
526 | * This is used by the init complete code.
|
---|
527 | */
|
---|
528 | static void pcbiosCmosWrite(PPDMDEVINS pDevIns, int off, uint32_t u32Val)
|
---|
529 | {
|
---|
530 | Assert(off < 256);
|
---|
531 | Assert(u32Val < 256);
|
---|
532 |
|
---|
533 | int rc = PDMDevHlpCMOSWrite(pDevIns, off, u32Val);
|
---|
534 | AssertRC(rc);
|
---|
535 | }
|
---|
536 |
|
---|
537 |
|
---|
538 | /**
|
---|
539 | * Read from CMOS memory.
|
---|
540 | * This is used by the init complete code.
|
---|
541 | */
|
---|
542 | static uint8_t pcbiosCmosRead(PPDMDEVINS pDevIns, unsigned off)
|
---|
543 | {
|
---|
544 | Assert(off < 256);
|
---|
545 |
|
---|
546 | uint8_t u8val;
|
---|
547 | int rc = PDMDevHlpCMOSRead(pDevIns, off, &u8val);
|
---|
548 | AssertRC(rc);
|
---|
549 |
|
---|
550 | return u8val;
|
---|
551 | }
|
---|
552 |
|
---|
553 |
|
---|
554 | /**
|
---|
555 | * @interface_method_impl{PDMFWREG,pfnIsHardReset}
|
---|
556 | */
|
---|
557 | static DECLCALLBACK(bool) pcbiosFw_IsHardReset(PPDMDEVINS pDevIns, uint32_t fFlags)
|
---|
558 | {
|
---|
559 | RT_NOREF1(fFlags);
|
---|
560 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
561 | if (pThis->fCheckShutdownStatusForSoftReset)
|
---|
562 | {
|
---|
563 | uint8_t bShutdownStatus = pcbiosCmosRead(pDevIns, 0xf);
|
---|
564 | if ( bShutdownStatus == 0x5
|
---|
565 | || bShutdownStatus == 0x9
|
---|
566 | || bShutdownStatus == 0xa)
|
---|
567 | {
|
---|
568 | const uint32_t cMaxLogged = 10;
|
---|
569 | if (pThis->cLoggedSoftResets < cMaxLogged)
|
---|
570 | {
|
---|
571 | RTFAR16 Far16 = { 0xfeed, 0xface };
|
---|
572 | PDMDevHlpPhysRead(pDevIns, 0x467, &Far16, sizeof(Far16));
|
---|
573 | pThis->cLoggedSoftResets++;
|
---|
574 | LogRel(("PcBios: Soft reset #%u - shutdown status %#x, warm reset vector (0040:0067) is %04x:%04x%s\n",
|
---|
575 | pThis->cLoggedSoftResets, bShutdownStatus, Far16.sel, Far16.off,
|
---|
576 | pThis->cLoggedSoftResets < cMaxLogged ? "." : " - won't log any more!"));
|
---|
577 | }
|
---|
578 | return false;
|
---|
579 | }
|
---|
580 | }
|
---|
581 | return true;
|
---|
582 | }
|
---|
583 |
|
---|
584 |
|
---|
585 | /**
|
---|
586 | * @interface_method_impl{PDMDEVREG,pfnReset}
|
---|
587 | */
|
---|
588 | static DECLCALLBACK(void) pcbiosReset(PPDMDEVINS pDevIns)
|
---|
589 | {
|
---|
590 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
591 |
|
---|
592 | if (pThis->fClearShutdownStatusOnHardReset)
|
---|
593 | {
|
---|
594 | uint8_t bShutdownStatus = pcbiosCmosRead(pDevIns, 0xf);
|
---|
595 | if (bShutdownStatus != 0)
|
---|
596 | {
|
---|
597 | LogRel(("PcBios: Clearing shutdown status code %02x.\n", bShutdownStatus));
|
---|
598 | pcbiosCmosWrite(pDevIns, 0xf, 0);
|
---|
599 | }
|
---|
600 | }
|
---|
601 |
|
---|
602 | /* After reset the new BIOS code is active, use the new control port. */
|
---|
603 | pcbiosRegisterControl(pDevIns, pThis, true /* fNewControlPort */);
|
---|
604 | }
|
---|
605 |
|
---|
606 |
|
---|
607 | /**
|
---|
608 | * Attempt to guess the LCHS disk geometry from the MS-DOS master boot record
|
---|
609 | * (partition table).
|
---|
610 | *
|
---|
611 | * @returns VBox status code.
|
---|
612 | * @param pMedia The media device interface of the disk.
|
---|
613 | * @param pLCHSGeometry Where to return the disk geometry on success
|
---|
614 | */
|
---|
615 | static int biosGuessDiskLCHS(PPDMIMEDIA pMedia, PPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
616 | {
|
---|
617 | uint8_t aMBR[512], *p;
|
---|
618 | int rc;
|
---|
619 | uint32_t iEndHead, iEndSector, cLCHSCylinders, cLCHSHeads, cLCHSSectors;
|
---|
620 |
|
---|
621 | if (!pMedia)
|
---|
622 | return VERR_INVALID_PARAMETER;
|
---|
623 | rc = pMedia->pfnReadPcBios(pMedia, 0, aMBR, sizeof(aMBR));
|
---|
624 | if (RT_FAILURE(rc))
|
---|
625 | return rc;
|
---|
626 | /* Test MBR magic number. */
|
---|
627 | if (aMBR[510] != 0x55 || aMBR[511] != 0xaa)
|
---|
628 | return VERR_INVALID_PARAMETER;
|
---|
629 | for (uint32_t i = 0; i < 4; i++)
|
---|
630 | {
|
---|
631 | /* Figure out the start of a partition table entry. */
|
---|
632 | p = &aMBR[0x1be + i * 16];
|
---|
633 | iEndHead = p[5];
|
---|
634 | iEndSector = p[6] & 63;
|
---|
635 | if ((p[12] | p[13] | p[14] | p[15]) && iEndSector && iEndHead)
|
---|
636 | {
|
---|
637 | /* Assumption: partition terminates on a cylinder boundary. */
|
---|
638 | cLCHSHeads = iEndHead + 1;
|
---|
639 | cLCHSSectors = iEndSector;
|
---|
640 | cLCHSCylinders = RT_MIN(1024, pMedia->pfnGetSize(pMedia) / (512 * cLCHSHeads * cLCHSSectors));
|
---|
641 | if (cLCHSCylinders >= 1)
|
---|
642 | {
|
---|
643 | pLCHSGeometry->cCylinders = cLCHSCylinders;
|
---|
644 | pLCHSGeometry->cHeads = cLCHSHeads;
|
---|
645 | pLCHSGeometry->cSectors = cLCHSSectors;
|
---|
646 | Log(("%s: LCHS=%d %d %d\n", __FUNCTION__, cLCHSCylinders, cLCHSHeads, cLCHSSectors));
|
---|
647 | return VINF_SUCCESS;
|
---|
648 | }
|
---|
649 | }
|
---|
650 | }
|
---|
651 | return VERR_INVALID_PARAMETER;
|
---|
652 | }
|
---|
653 |
|
---|
654 |
|
---|
655 | /* Several common PC/AT BIOS drive types. Corresponds to IBM BIOS drive tables. */
|
---|
656 | PDMMEDIAGEOMETRY aGeomPCAT[] = {
|
---|
657 | /* cyls heads sectors */
|
---|
658 | { 0, 0, 0 }, /* Type 0 is not used */
|
---|
659 | { 306, 4, 17 }, /* Type 1, 10MB */
|
---|
660 | { 615, 4, 17 }, /* Type 2, 20MB */
|
---|
661 | { 615, 6, 17 }, /* Type 3, 30MB */
|
---|
662 | { 940, 8, 17 }, /* Type 4, 62MB */
|
---|
663 | { 940, 6, 17 }, /* Type 5, 47MB */
|
---|
664 | { 615, 4, 17 }, /* Type 6, 20MB (different WPCOMP from Type 2) */
|
---|
665 | { 462, 8, 17 }, /* Type 7, 30MB */
|
---|
666 | { 733, 5, 17 }, /* Type 8, 30MB */
|
---|
667 | { 900, 15, 17 }, /* Type 9, 117MB */
|
---|
668 |
|
---|
669 | { 820, 3, 17 }, /* Type 10, 21MB */
|
---|
670 | { 855, 5, 17 }, /* Type 11, 37MB */
|
---|
671 | { 855, 7, 17 }, /* Type 12, 52MB */
|
---|
672 | { 306, 8, 17 }, /* Type 13, 21MB */
|
---|
673 | { 733, 7, 17 }, /* Type 14, 45MB */
|
---|
674 | { 0, 0, 0 }, /* Type 15 is not used */
|
---|
675 | { 612, 4, 17 }, /* Type 16, 21MB */
|
---|
676 | { 977, 5, 17 }, /* Type 17, 43MB */
|
---|
677 | { 977, 7, 17 }, /* Type 18, 60MB */
|
---|
678 | { 1024, 7, 17 }, /* Type 19, 62MB */
|
---|
679 |
|
---|
680 | { 733, 5, 17 }, /* Type 20, 32MB */
|
---|
681 | { 733, 7, 17 }, /* Type 21, 45MB */
|
---|
682 | { 733, 5, 17 }, /* Type 22, 32MB */
|
---|
683 | { 306, 4, 17 }, /* Type 23, 10MB */
|
---|
684 | };
|
---|
685 |
|
---|
686 | /**
|
---|
687 | * Attempts to initialize CMOS data for a hard disk matching one of
|
---|
688 | * the PC/AT BIOS types. Only applicable to the first two drives.
|
---|
689 | * Returns true if drive is one of the few recognized types.
|
---|
690 | */
|
---|
691 | static bool pcbiosCmosTryPCATHardDisk(PPDMDEVINS pDevIns, int drive, PCPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
692 | {
|
---|
693 | unsigned type;
|
---|
694 | unsigned typeLow;
|
---|
695 | bool fCompatGeom = false;
|
---|
696 |
|
---|
697 | Assert((drive == 0) || (drive == 1));
|
---|
698 |
|
---|
699 | /* See if drive geometry is one of the ancient PC/AT BIOS types. */
|
---|
700 | for (type = 0; type < RT_ELEMENTS(aGeomPCAT); ++type) {
|
---|
701 | if ( (aGeomPCAT[type].cCylinders == pLCHSGeometry->cCylinders)
|
---|
702 | && (aGeomPCAT[type].cHeads == pLCHSGeometry->cHeads )
|
---|
703 | && (aGeomPCAT[type].cSectors == pLCHSGeometry->cSectors )) {
|
---|
704 | LogRel(("PcBios: Recognized ATA hard disk %d as PC/AT BIOS type %d\n", drive, type));
|
---|
705 | fCompatGeom = true;
|
---|
706 | break;
|
---|
707 | }
|
---|
708 | }
|
---|
709 |
|
---|
710 | if (fCompatGeom) {
|
---|
711 | uint32_t u32;
|
---|
712 |
|
---|
713 | /* For types below 15, the type is in CMOS byte 0x12.
|
---|
714 | * NB: The type for drive 0 is in the high nibble, drive 1
|
---|
715 | * is in the low nibble.
|
---|
716 | * For drive types above 15, CMOS byte 0x12 is set to 15
|
---|
717 | * and actual drive type is in byte 0x19 (drive 0) or
|
---|
718 | * byte 0x1a (drive 1).
|
---|
719 | */
|
---|
720 | typeLow = type < 15 ? type : 15;
|
---|
721 |
|
---|
722 | /* Always update CMOS byte 0x12. */
|
---|
723 | u32 = pcbiosCmosRead(pDevIns, 0x12);
|
---|
724 | u32 &= 0x0f << (4 * drive);
|
---|
725 | u32 |= typeLow << (4 - 4 * drive);
|
---|
726 | pcbiosCmosWrite(pDevIns, 0x12, u32);
|
---|
727 |
|
---|
728 | /* For higher drive types, also update CMOS byte 0x19/0x1a. */
|
---|
729 | if (type > 15) {
|
---|
730 | u32 = type;
|
---|
731 | pcbiosCmosWrite(pDevIns, 0x19 + drive, u32);
|
---|
732 | }
|
---|
733 | }
|
---|
734 |
|
---|
735 | return fCompatGeom;
|
---|
736 | }
|
---|
737 |
|
---|
738 |
|
---|
739 | /**
|
---|
740 | * Initializes the CMOS data for one harddisk.
|
---|
741 | */
|
---|
742 | static void pcbiosCmosInitHardDisk(PPDMDEVINS pDevIns, int offType, int offInfo, PCPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
743 | {
|
---|
744 | Log2(("%s: offInfo=%#x: LCHS=%d/%d/%d\n", __FUNCTION__, offInfo, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
|
---|
745 | if (offType) {
|
---|
746 | uint32_t u32;
|
---|
747 | int drive;
|
---|
748 |
|
---|
749 | Assert(offType == 0x1a || offType == 0x19);
|
---|
750 | drive = offType == 0x19 ? 0 : 1;
|
---|
751 |
|
---|
752 | /* Update CMOS byte 12h. It will always be set to type 0fh for this disk. */
|
---|
753 | u32 = pcbiosCmosRead(pDevIns, 0x12);
|
---|
754 | u32 &= 0x0f << (4 * drive);
|
---|
755 | u32 |= 0x0f << (4 - 4 * drive);
|
---|
756 | pcbiosCmosWrite(pDevIns, 0x12, u32);
|
---|
757 |
|
---|
758 | /* Now write the extended drive type at offset 19h or 1Ah. */
|
---|
759 | pcbiosCmosWrite(pDevIns, offType, 47);
|
---|
760 | }
|
---|
761 | /* Cylinders low */
|
---|
762 | pcbiosCmosWrite(pDevIns, offInfo + 0, RT_MIN(pLCHSGeometry->cCylinders, 1024) & 0xff);
|
---|
763 | /* Cylinders high */
|
---|
764 | pcbiosCmosWrite(pDevIns, offInfo + 1, RT_MIN(pLCHSGeometry->cCylinders, 1024) >> 8);
|
---|
765 | /* Heads */
|
---|
766 | pcbiosCmosWrite(pDevIns, offInfo + 2, pLCHSGeometry->cHeads);
|
---|
767 | /* Landing zone low */
|
---|
768 | pcbiosCmosWrite(pDevIns, offInfo + 3, 0xff);
|
---|
769 | /* Landing zone high */
|
---|
770 | pcbiosCmosWrite(pDevIns, offInfo + 4, 0xff);
|
---|
771 | /* Write precomp low */
|
---|
772 | pcbiosCmosWrite(pDevIns, offInfo + 5, 0xff);
|
---|
773 | /* Write precomp high */
|
---|
774 | pcbiosCmosWrite(pDevIns, offInfo + 6, 0xff);
|
---|
775 | /* Sectors */
|
---|
776 | pcbiosCmosWrite(pDevIns, offInfo + 7, pLCHSGeometry->cSectors);
|
---|
777 | }
|
---|
778 |
|
---|
779 |
|
---|
780 | /**
|
---|
781 | * Set logical CHS geometry for a hard disk
|
---|
782 | *
|
---|
783 | * @returns VBox status code.
|
---|
784 | * @param pBase Base interface for the device.
|
---|
785 | * @param pHardDisk The hard disk.
|
---|
786 | * @param pLCHSGeometry Where to store the geometry settings.
|
---|
787 | */
|
---|
788 | static int setLogicalDiskGeometry(PPDMIBASE pBase, PPDMIMEDIA pHardDisk, PPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
789 | {
|
---|
790 | RT_NOREF1(pBase);
|
---|
791 |
|
---|
792 | PDMMEDIAGEOMETRY LCHSGeometry;
|
---|
793 | int rc = pHardDisk->pfnBiosGetLCHSGeometry(pHardDisk, &LCHSGeometry);
|
---|
794 | if ( rc == VERR_PDM_GEOMETRY_NOT_SET
|
---|
795 | || LCHSGeometry.cCylinders == 0
|
---|
796 | || LCHSGeometry.cHeads == 0
|
---|
797 | || LCHSGeometry.cHeads > 255
|
---|
798 | || LCHSGeometry.cSectors == 0
|
---|
799 | || LCHSGeometry.cSectors > 63)
|
---|
800 | {
|
---|
801 | /* No LCHS geometry, autodetect and set. */
|
---|
802 | rc = biosGuessDiskLCHS(pHardDisk, &LCHSGeometry);
|
---|
803 | if (RT_FAILURE(rc))
|
---|
804 | {
|
---|
805 | /* Try if PCHS geometry works, otherwise fall back. */
|
---|
806 | rc = pHardDisk->pfnBiosGetPCHSGeometry(pHardDisk, &LCHSGeometry);
|
---|
807 | }
|
---|
808 | if ( RT_FAILURE(rc)
|
---|
809 | || LCHSGeometry.cCylinders == 0
|
---|
810 | || LCHSGeometry.cCylinders > 1024
|
---|
811 | || LCHSGeometry.cHeads == 0
|
---|
812 | || LCHSGeometry.cHeads > 255
|
---|
813 | || LCHSGeometry.cSectors == 0
|
---|
814 | || LCHSGeometry.cSectors > 63)
|
---|
815 | {
|
---|
816 | uint64_t cSectors = pHardDisk->pfnGetSize(pHardDisk) / 512;
|
---|
817 | if (cSectors / 16 / 63 <= 1024)
|
---|
818 | {
|
---|
819 | LCHSGeometry.cCylinders = RT_MAX(cSectors / 16 / 63, 1);
|
---|
820 | LCHSGeometry.cHeads = 16;
|
---|
821 | }
|
---|
822 | else if (cSectors / 32 / 63 <= 1024)
|
---|
823 | {
|
---|
824 | LCHSGeometry.cCylinders = RT_MAX(cSectors / 32 / 63, 1);
|
---|
825 | LCHSGeometry.cHeads = 32;
|
---|
826 | }
|
---|
827 | else if (cSectors / 64 / 63 <= 1024)
|
---|
828 | {
|
---|
829 | LCHSGeometry.cCylinders = cSectors / 64 / 63;
|
---|
830 | LCHSGeometry.cHeads = 64;
|
---|
831 | }
|
---|
832 | else if (cSectors / 128 / 63 <= 1024)
|
---|
833 | {
|
---|
834 | LCHSGeometry.cCylinders = cSectors / 128 / 63;
|
---|
835 | LCHSGeometry.cHeads = 128;
|
---|
836 | }
|
---|
837 | else
|
---|
838 | {
|
---|
839 | LCHSGeometry.cCylinders = RT_MIN(cSectors / 255 / 63, 1024);
|
---|
840 | LCHSGeometry.cHeads = 255;
|
---|
841 | }
|
---|
842 | LCHSGeometry.cSectors = 63;
|
---|
843 |
|
---|
844 | }
|
---|
845 | rc = pHardDisk->pfnBiosSetLCHSGeometry(pHardDisk, &LCHSGeometry);
|
---|
846 | if (rc == VERR_VD_IMAGE_READ_ONLY)
|
---|
847 | {
|
---|
848 | LogRel(("PcBios: ATA failed to update LCHS geometry, read only\n"));
|
---|
849 | rc = VINF_SUCCESS;
|
---|
850 | }
|
---|
851 | else if (rc == VERR_PDM_GEOMETRY_NOT_SET)
|
---|
852 | {
|
---|
853 | LogRel(("PcBios: ATA failed to update LCHS geometry, backend refused\n"));
|
---|
854 | rc = VINF_SUCCESS;
|
---|
855 | }
|
---|
856 | }
|
---|
857 |
|
---|
858 | *pLCHSGeometry = LCHSGeometry;
|
---|
859 |
|
---|
860 | return rc;
|
---|
861 | }
|
---|
862 |
|
---|
863 |
|
---|
864 | /**
|
---|
865 | * Get logical CHS geometry for a hard disk, intended for SCSI/SAS drives
|
---|
866 | * with no physical geometry.
|
---|
867 | *
|
---|
868 | * @returns VBox status code.
|
---|
869 | * @param pHardDisk The hard disk.
|
---|
870 | * @param pLCHSGeometry Where to store the geometry settings.
|
---|
871 | */
|
---|
872 | static int getLogicalDiskGeometry(PPDMIMEDIA pHardDisk, PPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
873 | {
|
---|
874 | PDMMEDIAGEOMETRY LCHSGeometry;
|
---|
875 | int rc = VINF_SUCCESS;
|
---|
876 |
|
---|
877 | rc = pHardDisk->pfnBiosGetLCHSGeometry(pHardDisk, &LCHSGeometry);
|
---|
878 | if ( rc == VERR_PDM_GEOMETRY_NOT_SET
|
---|
879 | || LCHSGeometry.cCylinders == 0
|
---|
880 | || LCHSGeometry.cHeads == 0
|
---|
881 | || LCHSGeometry.cHeads > 255
|
---|
882 | || LCHSGeometry.cSectors == 0
|
---|
883 | || LCHSGeometry.cSectors > 63)
|
---|
884 | {
|
---|
885 | /* Unlike the ATA case, if the image does not provide valid logical
|
---|
886 | * geometry, we leave things alone and let the BIOS decide what the
|
---|
887 | * logical geometry should be.
|
---|
888 | */
|
---|
889 | rc = VERR_PDM_GEOMETRY_NOT_SET;
|
---|
890 | }
|
---|
891 | else
|
---|
892 | *pLCHSGeometry = LCHSGeometry;
|
---|
893 |
|
---|
894 | return rc;
|
---|
895 | }
|
---|
896 |
|
---|
897 |
|
---|
898 | /**
|
---|
899 | * Get BIOS boot code from enmBootDevice in order
|
---|
900 | *
|
---|
901 | * @todo r=bird: This is a rather silly function since the conversion is 1:1.
|
---|
902 | */
|
---|
903 | static uint8_t getBiosBootCode(PDEVPCBIOS pThis, unsigned iOrder)
|
---|
904 | {
|
---|
905 | switch (pThis->aenmBootDevice[iOrder])
|
---|
906 | {
|
---|
907 | case DEVPCBIOSBOOT_NONE:
|
---|
908 | return 0;
|
---|
909 | case DEVPCBIOSBOOT_FLOPPY:
|
---|
910 | return 1;
|
---|
911 | case DEVPCBIOSBOOT_HD:
|
---|
912 | return 2;
|
---|
913 | case DEVPCBIOSBOOT_DVD:
|
---|
914 | return 3;
|
---|
915 | case DEVPCBIOSBOOT_LAN:
|
---|
916 | return 4;
|
---|
917 | default:
|
---|
918 | AssertMsgFailed(("aenmBootDevice[%d]=%d\n", iOrder, pThis->aenmBootDevice[iOrder]));
|
---|
919 | return 0;
|
---|
920 | }
|
---|
921 | }
|
---|
922 |
|
---|
923 |
|
---|
924 | /**
|
---|
925 | * @interface_method_impl{PDMDEVREG,pfnInitComplete}
|
---|
926 | *
|
---|
927 | * This routine will write information needed by the bios to the CMOS.
|
---|
928 | *
|
---|
929 | * @see http://www.brl.ntt.co.jp/people/takehiko/interrupt/CMOS.LST.txt for
|
---|
930 | * a description of standard and non-standard CMOS registers.
|
---|
931 | */
|
---|
932 | static DECLCALLBACK(int) pcbiosInitComplete(PPDMDEVINS pDevIns)
|
---|
933 | {
|
---|
934 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
935 | uint32_t u32;
|
---|
936 | unsigned i;
|
---|
937 | PPDMIMEDIA apHDs[4] = {0};
|
---|
938 | LogFlow(("pcbiosInitComplete:\n"));
|
---|
939 |
|
---|
940 | uint64_t const cbRamSize = PDMDevHlpMMPhysGetRamSize(pDevIns);
|
---|
941 | uint32_t const cbBelow4GB = PDMDevHlpMMPhysGetRamSizeBelow4GB(pDevIns);
|
---|
942 | uint64_t const cbAbove4GB = PDMDevHlpMMPhysGetRamSizeAbove4GB(pDevIns);
|
---|
943 |
|
---|
944 | /*
|
---|
945 | * Memory sizes.
|
---|
946 | */
|
---|
947 | /* base memory. */
|
---|
948 | u32 = cbRamSize > 640 ? 640 : (uint32_t)cbRamSize / _1K; /* <-- this test is wrong, but it doesn't matter since we never assign less than 1MB */
|
---|
949 | pcbiosCmosWrite(pDevIns, 0x15, RT_BYTE1(u32)); /* 15h - Base Memory in K, Low Byte */
|
---|
950 | pcbiosCmosWrite(pDevIns, 0x16, RT_BYTE2(u32)); /* 16h - Base Memory in K, High Byte */
|
---|
951 |
|
---|
952 | /* Extended memory, up to 65MB */
|
---|
953 | u32 = cbRamSize >= 65 * _1M ? 0xffff : ((uint32_t)cbRamSize - _1M) / _1K;
|
---|
954 | pcbiosCmosWrite(pDevIns, 0x17, RT_BYTE1(u32)); /* 17h - Extended Memory in K, Low Byte */
|
---|
955 | pcbiosCmosWrite(pDevIns, 0x18, RT_BYTE2(u32)); /* 18h - Extended Memory in K, High Byte */
|
---|
956 | pcbiosCmosWrite(pDevIns, 0x30, RT_BYTE1(u32)); /* 30h - Extended Memory in K, Low Byte */
|
---|
957 | pcbiosCmosWrite(pDevIns, 0x31, RT_BYTE2(u32)); /* 31h - Extended Memory in K, High Byte */
|
---|
958 |
|
---|
959 | /* Bochs BIOS specific? Anyway, it's the amount of memory above 16MB
|
---|
960 | and below 4GB (as it can only hold 4GB-16M). We have to chop off the
|
---|
961 | top 32MB or it conflict with what the ACPI tables return. (Should these
|
---|
962 | be adjusted, we still have to chop it at 0xfffc0000 or it'll conflict
|
---|
963 | with the high BIOS mapping.) */
|
---|
964 | if (cbRamSize > 16 * _1M)
|
---|
965 | u32 = (RT_MIN(cbBelow4GB, UINT32_C(0xfe000000)) - 16U * _1M) / _64K;
|
---|
966 | else
|
---|
967 | u32 = 0;
|
---|
968 | pcbiosCmosWrite(pDevIns, 0x34, RT_BYTE1(u32));
|
---|
969 | pcbiosCmosWrite(pDevIns, 0x35, RT_BYTE2(u32));
|
---|
970 |
|
---|
971 | /* Bochs/VBox BIOS specific way of specifying memory above 4GB in 64KB units.
|
---|
972 | Bochs got these in a different location which we've already used for SATA,
|
---|
973 | it also lacks the last two. */
|
---|
974 | uint64_t c64KBAbove4GB = cbAbove4GB / _64K;
|
---|
975 | /* Make sure it doesn't hit the limits of the current BIOS code (RAM limit of ~255TB). */
|
---|
976 | AssertLogRelMsgReturn((c64KBAbove4GB >> (3 * 8)) < 255, ("%#RX64\n", c64KBAbove4GB), VERR_OUT_OF_RANGE);
|
---|
977 | pcbiosCmosWrite(pDevIns, 0x61, RT_BYTE1(c64KBAbove4GB));
|
---|
978 | pcbiosCmosWrite(pDevIns, 0x62, RT_BYTE2(c64KBAbove4GB));
|
---|
979 | pcbiosCmosWrite(pDevIns, 0x63, RT_BYTE3(c64KBAbove4GB));
|
---|
980 | pcbiosCmosWrite(pDevIns, 0x64, RT_BYTE4(c64KBAbove4GB));
|
---|
981 | pcbiosCmosWrite(pDevIns, 0x65, RT_BYTE5(c64KBAbove4GB));
|
---|
982 |
|
---|
983 | /*
|
---|
984 | * Number of CPUs.
|
---|
985 | */
|
---|
986 | pcbiosCmosWrite(pDevIns, 0x60, pThis->cCpus & 0xff);
|
---|
987 |
|
---|
988 | /*
|
---|
989 | * APIC mode.
|
---|
990 | */
|
---|
991 | pcbiosCmosWrite(pDevIns, 0x78, pThis->u8APICMode);
|
---|
992 |
|
---|
993 | /*
|
---|
994 | * Bochs BIOS specifics - boot device.
|
---|
995 | * We do both new and old (ami-style) settings.
|
---|
996 | * See rombios.c line ~7215 (int19_function).
|
---|
997 | */
|
---|
998 |
|
---|
999 | uint8_t reg3d = getBiosBootCode(pThis, 0) | (getBiosBootCode(pThis, 1) << 4);
|
---|
1000 | uint8_t reg38 = /* pcbiosCmosRead(pDevIns, 0x38) | */ getBiosBootCode(pThis, 2) << 4;
|
---|
1001 | /* This is an extension. Bochs BIOS normally supports only 3 boot devices. */
|
---|
1002 | uint8_t reg3c = getBiosBootCode(pThis, 3) | (pThis->uBootDelay << 4);
|
---|
1003 | pcbiosCmosWrite(pDevIns, 0x3d, reg3d);
|
---|
1004 | pcbiosCmosWrite(pDevIns, 0x38, reg38);
|
---|
1005 | pcbiosCmosWrite(pDevIns, 0x3c, reg3c);
|
---|
1006 |
|
---|
1007 | /*
|
---|
1008 | * PXE debug option.
|
---|
1009 | */
|
---|
1010 | pcbiosCmosWrite(pDevIns, 0x3f, pThis->u8PXEDebug);
|
---|
1011 |
|
---|
1012 | /*
|
---|
1013 | * Network boot device list.
|
---|
1014 | */
|
---|
1015 | for (i = 0; i < NET_BOOT_DEVS; ++i)
|
---|
1016 | {
|
---|
1017 | pcbiosCmosWrite(pDevIns, 0x82 + i * 2, RT_BYTE1(pThis->au16NetBootDev[i]));
|
---|
1018 | pcbiosCmosWrite(pDevIns, 0x83 + i * 2, RT_BYTE2(pThis->au16NetBootDev[i]));
|
---|
1019 | }
|
---|
1020 |
|
---|
1021 | /*
|
---|
1022 | * Floppy drive type.
|
---|
1023 | */
|
---|
1024 | uint32_t cFDs = 0;
|
---|
1025 | u32 = 0;
|
---|
1026 | for (i = 0; i < 2; i++)
|
---|
1027 | {
|
---|
1028 | PPDMIBASE pBase;
|
---|
1029 | int rc = PDMDevHlpQueryLun(pDevIns, pThis->pszFDDevice, 0, i, &pBase);
|
---|
1030 | if (RT_SUCCESS(rc))
|
---|
1031 | {
|
---|
1032 | PPDMIMEDIA pFD = PDMIBASE_QUERY_INTERFACE(pBase, PDMIMEDIA);
|
---|
1033 | if (pFD)
|
---|
1034 | {
|
---|
1035 | cFDs++;
|
---|
1036 | unsigned cShift = i == 0 ? 4 : 0;
|
---|
1037 | switch (pFD->pfnGetType(pFD))
|
---|
1038 | {
|
---|
1039 | case PDMMEDIATYPE_FLOPPY_360: u32 |= 1 << cShift; break;
|
---|
1040 | case PDMMEDIATYPE_FLOPPY_1_20: u32 |= 2 << cShift; break;
|
---|
1041 | case PDMMEDIATYPE_FLOPPY_720: u32 |= 3 << cShift; break;
|
---|
1042 | case PDMMEDIATYPE_FLOPPY_1_44: u32 |= 4 << cShift; break;
|
---|
1043 | case PDMMEDIATYPE_FLOPPY_2_88: u32 |= 5 << cShift; break;
|
---|
1044 | case PDMMEDIATYPE_FLOPPY_FAKE_15_6: u32 |= 14 << cShift; break;
|
---|
1045 | case PDMMEDIATYPE_FLOPPY_FAKE_63_5: u32 |= 15 << cShift; break;
|
---|
1046 | default: AssertFailed(); break;
|
---|
1047 | }
|
---|
1048 | }
|
---|
1049 | }
|
---|
1050 | }
|
---|
1051 | pcbiosCmosWrite(pDevIns, 0x10, u32); /* 10h - Floppy Drive Type */
|
---|
1052 |
|
---|
1053 | /*
|
---|
1054 | * Equipment byte.
|
---|
1055 | */
|
---|
1056 | if (cFDs > 0)
|
---|
1057 | u32 = ((cFDs - 1) << 6) | 0x01; /* floppy installed, additional drives. */
|
---|
1058 | else
|
---|
1059 | u32 = 0x00; /* floppy not installed. */
|
---|
1060 | u32 |= RT_BIT(1); /* math coprocessor installed */
|
---|
1061 | u32 |= RT_BIT(2); /* keyboard enabled (or mouse?) */
|
---|
1062 | u32 |= RT_BIT(3); /* display enabled (monitory type is 0, i.e. vga) */
|
---|
1063 | pcbiosCmosWrite(pDevIns, 0x14, u32); /* 14h - Equipment Byte */
|
---|
1064 |
|
---|
1065 | /*
|
---|
1066 | * IDE harddisks.
|
---|
1067 | */
|
---|
1068 | for (i = 0; i < RT_ELEMENTS(apHDs); i++)
|
---|
1069 | {
|
---|
1070 | PPDMIBASE pBase;
|
---|
1071 | int rc = PDMDevHlpQueryLun(pDevIns, pThis->pszHDDevice, 0, i, &pBase);
|
---|
1072 | if (RT_SUCCESS(rc))
|
---|
1073 | apHDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIMEDIA);
|
---|
1074 | if ( apHDs[i]
|
---|
1075 | && ( apHDs[i]->pfnGetType(apHDs[i]) != PDMMEDIATYPE_HARD_DISK
|
---|
1076 | || !apHDs[i]->pfnBiosIsVisible(apHDs[i])))
|
---|
1077 | apHDs[i] = NULL;
|
---|
1078 | if (apHDs[i])
|
---|
1079 | {
|
---|
1080 | PDMMEDIAGEOMETRY LCHSGeometry;
|
---|
1081 | int rc2 = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
|
---|
1082 | AssertRC(rc2);
|
---|
1083 |
|
---|
1084 | if (i < 4)
|
---|
1085 | {
|
---|
1086 | /* Award BIOS extended drive types for first to fourth disk.
|
---|
1087 | * Used by the BIOS for setting the logical geometry. */
|
---|
1088 | int offType, offInfo;
|
---|
1089 | switch (i)
|
---|
1090 | {
|
---|
1091 | case 0:
|
---|
1092 | offType = 0x19;
|
---|
1093 | offInfo = 0x1e;
|
---|
1094 | break;
|
---|
1095 | case 1:
|
---|
1096 | offType = 0x1a;
|
---|
1097 | offInfo = 0x26;
|
---|
1098 | break;
|
---|
1099 | case 2:
|
---|
1100 | offType = 0x00;
|
---|
1101 | offInfo = 0x67;
|
---|
1102 | break;
|
---|
1103 | case 3:
|
---|
1104 | default:
|
---|
1105 | offType = 0x00;
|
---|
1106 | offInfo = 0x70;
|
---|
1107 | break;
|
---|
1108 | }
|
---|
1109 | pcbiosCmosInitHardDisk(pDevIns, offType, offInfo, &LCHSGeometry);
|
---|
1110 | if (i < 2)
|
---|
1111 | pcbiosCmosTryPCATHardDisk(pDevIns, i, &LCHSGeometry);
|
---|
1112 | }
|
---|
1113 | LogRel(("PcBios: ATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
|
---|
1114 | }
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 | /*
|
---|
1118 | * SATA harddisks.
|
---|
1119 | */
|
---|
1120 | if (pThis->pszSataDevice)
|
---|
1121 | {
|
---|
1122 | /* Clear pointers to the block devices. */
|
---|
1123 | for (i = 0; i < RT_ELEMENTS(apHDs); i++)
|
---|
1124 | apHDs[i] = NULL;
|
---|
1125 |
|
---|
1126 | for (i = 0; i < RT_ELEMENTS(apHDs); i++)
|
---|
1127 | {
|
---|
1128 | PPDMIBASE pBase;
|
---|
1129 | int rc = PDMDevHlpQueryLun(pDevIns, pThis->pszSataDevice, 0, pThis->iSataHDLUN[i], &pBase);
|
---|
1130 | if (RT_SUCCESS(rc))
|
---|
1131 | apHDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIMEDIA);
|
---|
1132 | if ( apHDs[i]
|
---|
1133 | && ( apHDs[i]->pfnGetType(apHDs[i]) != PDMMEDIATYPE_HARD_DISK
|
---|
1134 | || !apHDs[i]->pfnBiosIsVisible(apHDs[i])))
|
---|
1135 | apHDs[i] = NULL;
|
---|
1136 | if (apHDs[i])
|
---|
1137 | {
|
---|
1138 | PDMMEDIAGEOMETRY LCHSGeometry;
|
---|
1139 | rc = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
|
---|
1140 | AssertRC(rc);
|
---|
1141 |
|
---|
1142 | if (i < 4)
|
---|
1143 | {
|
---|
1144 | /* Award BIOS extended drive types for first to fourth disk.
|
---|
1145 | * Used by the BIOS for setting the logical geometry. */
|
---|
1146 | int offInfo;
|
---|
1147 | switch (i)
|
---|
1148 | {
|
---|
1149 | case 0:
|
---|
1150 | offInfo = 0x40;
|
---|
1151 | break;
|
---|
1152 | case 1:
|
---|
1153 | offInfo = 0x48;
|
---|
1154 | break;
|
---|
1155 | case 2:
|
---|
1156 | offInfo = 0x50;
|
---|
1157 | break;
|
---|
1158 | case 3:
|
---|
1159 | default:
|
---|
1160 | offInfo = 0x58;
|
---|
1161 | break;
|
---|
1162 | }
|
---|
1163 | pcbiosCmosInitHardDisk(pDevIns, 0x00, offInfo,
|
---|
1164 | &LCHSGeometry);
|
---|
1165 | }
|
---|
1166 | LogRel(("PcBios: SATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
|
---|
1167 | }
|
---|
1168 | }
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 | /*
|
---|
1172 | * SCSI harddisks. Not handled quite the same as SATA.
|
---|
1173 | */
|
---|
1174 | if (pThis->pszScsiDevice)
|
---|
1175 | {
|
---|
1176 | /* Clear pointers to the block devices. */
|
---|
1177 | for (i = 0; i < RT_ELEMENTS(apHDs); i++)
|
---|
1178 | apHDs[i] = NULL;
|
---|
1179 |
|
---|
1180 | for (i = 0; i < RT_ELEMENTS(apHDs); i++)
|
---|
1181 | {
|
---|
1182 | PPDMIBASE pBase;
|
---|
1183 | int rc = PDMDevHlpQueryLun(pDevIns, pThis->pszScsiDevice, 0, pThis->iScsiHDLUN[i], &pBase);
|
---|
1184 | if (RT_SUCCESS(rc))
|
---|
1185 | apHDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIMEDIA);
|
---|
1186 | if ( apHDs[i]
|
---|
1187 | && ( apHDs[i]->pfnGetType(apHDs[i]) != PDMMEDIATYPE_HARD_DISK
|
---|
1188 | || !apHDs[i]->pfnBiosIsVisible(apHDs[i])))
|
---|
1189 | apHDs[i] = NULL;
|
---|
1190 | if (apHDs[i])
|
---|
1191 | {
|
---|
1192 | PDMMEDIAGEOMETRY LCHSGeometry;
|
---|
1193 | rc = getLogicalDiskGeometry(apHDs[i], &LCHSGeometry);
|
---|
1194 |
|
---|
1195 | if (i < 4 && RT_SUCCESS(rc))
|
---|
1196 | {
|
---|
1197 | /* Extended drive information (for SCSI disks).
|
---|
1198 | * Used by the BIOS for setting the logical geometry, but
|
---|
1199 | * only if the image provided valid data.
|
---|
1200 | */
|
---|
1201 | int offInfo;
|
---|
1202 | switch (i)
|
---|
1203 | {
|
---|
1204 | case 0:
|
---|
1205 | offInfo = 0x90;
|
---|
1206 | break;
|
---|
1207 | case 1:
|
---|
1208 | offInfo = 0x98;
|
---|
1209 | break;
|
---|
1210 | case 2:
|
---|
1211 | offInfo = 0xa0;
|
---|
1212 | break;
|
---|
1213 | case 3:
|
---|
1214 | default:
|
---|
1215 | offInfo = 0xa8;
|
---|
1216 | break;
|
---|
1217 | }
|
---|
1218 | pcbiosCmosInitHardDisk(pDevIns, 0x00, offInfo, &LCHSGeometry);
|
---|
1219 | LogRel(("PcBios: SCSI LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
|
---|
1220 | }
|
---|
1221 | else
|
---|
1222 | LogRel(("PcBios: SCSI LUN#%d LCHS not provided\n", i));
|
---|
1223 | }
|
---|
1224 | }
|
---|
1225 | }
|
---|
1226 |
|
---|
1227 | /* Calculate and store AT-style CMOS checksum. */
|
---|
1228 | uint16_t cksum = 0;
|
---|
1229 | for (i = 0x10; i < 0x2e; ++i)
|
---|
1230 | cksum += pcbiosCmosRead(pDevIns, i);
|
---|
1231 | pcbiosCmosWrite(pDevIns, 0x2e, RT_BYTE1(cksum));
|
---|
1232 | pcbiosCmosWrite(pDevIns, 0x2f, RT_BYTE2(cksum));
|
---|
1233 |
|
---|
1234 | LogFlow(("%s: returns VINF_SUCCESS\n", __FUNCTION__));
|
---|
1235 | return VINF_SUCCESS;
|
---|
1236 | }
|
---|
1237 |
|
---|
1238 |
|
---|
1239 | /**
|
---|
1240 | * @interface_method_impl{PDMDEVREG,pfnMemSetup}
|
---|
1241 | */
|
---|
1242 | static DECLCALLBACK(void) pcbiosMemSetup(PPDMDEVINS pDevIns, PDMDEVMEMSETUPCTX enmCtx)
|
---|
1243 | {
|
---|
1244 | RT_NOREF1(enmCtx);
|
---|
1245 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
1246 | LogFlow(("pcbiosMemSetup:\n"));
|
---|
1247 |
|
---|
1248 | if (pThis->u8IOAPIC)
|
---|
1249 | FwCommonPlantMpsFloatPtr(pDevIns, pThis->u32MPTableAddr);
|
---|
1250 |
|
---|
1251 | /*
|
---|
1252 | * Re-shadow the LAN ROM image and make it RAM/RAM.
|
---|
1253 | *
|
---|
1254 | * This is normally done by the BIOS code, but since we're currently lacking
|
---|
1255 | * the chipset support for this we do it here (and in the constructor).
|
---|
1256 | */
|
---|
1257 | uint32_t cPages = RT_ALIGN_64(pThis->cbLanBoot, GUEST_PAGE_SIZE) >> GUEST_PAGE_SHIFT;
|
---|
1258 | RTGCPHYS GCPhys = VBOX_LANBOOT_SEG << 4;
|
---|
1259 | while (cPages > 0)
|
---|
1260 | {
|
---|
1261 | uint8_t abPage[GUEST_PAGE_SIZE];
|
---|
1262 | int rc;
|
---|
1263 |
|
---|
1264 | /* Read the (original) ROM page and write it back to the RAM page. */
|
---|
1265 | rc = PDMDevHlpROMProtectShadow(pDevIns, GCPhys, GUEST_PAGE_SIZE, PGMROMPROT_READ_ROM_WRITE_RAM);
|
---|
1266 | AssertLogRelRC(rc);
|
---|
1267 |
|
---|
1268 | rc = PDMDevHlpPhysRead(pDevIns, GCPhys, abPage, GUEST_PAGE_SIZE);
|
---|
1269 | AssertLogRelRC(rc);
|
---|
1270 | if (RT_FAILURE(rc))
|
---|
1271 | memset(abPage, 0xcc, sizeof(abPage));
|
---|
1272 |
|
---|
1273 | rc = PDMDevHlpPhysWrite(pDevIns, GCPhys, abPage, GUEST_PAGE_SIZE);
|
---|
1274 | AssertLogRelRC(rc);
|
---|
1275 |
|
---|
1276 | /* Switch to the RAM/RAM mode. */
|
---|
1277 | rc = PDMDevHlpROMProtectShadow(pDevIns, GCPhys, GUEST_PAGE_SIZE, PGMROMPROT_READ_RAM_WRITE_RAM);
|
---|
1278 | AssertLogRelRC(rc);
|
---|
1279 |
|
---|
1280 | /* Advance */
|
---|
1281 | GCPhys += GUEST_PAGE_SIZE;
|
---|
1282 | cPages--;
|
---|
1283 | }
|
---|
1284 | }
|
---|
1285 |
|
---|
1286 |
|
---|
1287 | /**
|
---|
1288 | * @interface_method_impl{PDMDEVREG,pfnDestruct}
|
---|
1289 | */
|
---|
1290 | static DECLCALLBACK(int) pcbiosDestruct(PPDMDEVINS pDevIns)
|
---|
1291 | {
|
---|
1292 | PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
|
---|
1293 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
1294 | LogFlow(("pcbiosDestruct:\n"));
|
---|
1295 |
|
---|
1296 | /*
|
---|
1297 | * Free MM heap pointers.
|
---|
1298 | */
|
---|
1299 | if (pThis->pu8PcBios)
|
---|
1300 | {
|
---|
1301 | PDMDevHlpMMHeapFree(pDevIns, pThis->pu8PcBios);
|
---|
1302 | pThis->pu8PcBios = NULL;
|
---|
1303 | }
|
---|
1304 |
|
---|
1305 | if (pThis->pszPcBiosFile)
|
---|
1306 | {
|
---|
1307 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszPcBiosFile);
|
---|
1308 | pThis->pszPcBiosFile = NULL;
|
---|
1309 | }
|
---|
1310 |
|
---|
1311 | if (pThis->pu8LanBoot)
|
---|
1312 | {
|
---|
1313 | PDMDevHlpMMHeapFree(pDevIns, pThis->pu8LanBoot);
|
---|
1314 | pThis->pu8LanBoot = NULL;
|
---|
1315 | }
|
---|
1316 |
|
---|
1317 | if (pThis->pszLanBootFile)
|
---|
1318 | {
|
---|
1319 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszLanBootFile);
|
---|
1320 | pThis->pszLanBootFile = NULL;
|
---|
1321 | }
|
---|
1322 |
|
---|
1323 | if (pThis->pszHDDevice)
|
---|
1324 | {
|
---|
1325 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszHDDevice);
|
---|
1326 | pThis->pszHDDevice = NULL;
|
---|
1327 | }
|
---|
1328 |
|
---|
1329 | if (pThis->pszFDDevice)
|
---|
1330 | {
|
---|
1331 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszFDDevice);
|
---|
1332 | pThis->pszFDDevice = NULL;
|
---|
1333 | }
|
---|
1334 |
|
---|
1335 | if (pThis->pszSataDevice)
|
---|
1336 | {
|
---|
1337 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszSataDevice);
|
---|
1338 | pThis->pszSataDevice = NULL;
|
---|
1339 | }
|
---|
1340 |
|
---|
1341 | if (pThis->pszScsiDevice)
|
---|
1342 | {
|
---|
1343 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszScsiDevice);
|
---|
1344 | pThis->pszScsiDevice = NULL;
|
---|
1345 | }
|
---|
1346 |
|
---|
1347 | return VINF_SUCCESS;
|
---|
1348 | }
|
---|
1349 |
|
---|
1350 |
|
---|
1351 | /**
|
---|
1352 | * Convert config value to DEVPCBIOSBOOT.
|
---|
1353 | *
|
---|
1354 | * @returns VBox status code.
|
---|
1355 | * @param pDevIns Device instance data.
|
---|
1356 | * @param pCfg Configuration handle.
|
---|
1357 | * @param pszParam The name of the value to read.
|
---|
1358 | * @param penmBoot Where to store the boot method.
|
---|
1359 | */
|
---|
1360 | static int pcbiosBootFromCfg(PPDMDEVINS pDevIns, PCFGMNODE pCfg, const char *pszParam, DEVPCBIOSBOOT *penmBoot)
|
---|
1361 | {
|
---|
1362 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
1363 |
|
---|
1364 | char szBuf[64];
|
---|
1365 | int rc = pHlp->pfnCFGMQueryString(pCfg, pszParam, szBuf, sizeof(szBuf));
|
---|
1366 | if (RT_FAILURE(rc))
|
---|
1367 | return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1368 | N_("Configuration error: Querying \"%s\" as a string failed"), pszParam);
|
---|
1369 |
|
---|
1370 | if (!strcmp(szBuf, "DVD") || !strcmp(szBuf, "CDROM"))
|
---|
1371 | *penmBoot = DEVPCBIOSBOOT_DVD;
|
---|
1372 | else if (!strcmp(szBuf, "IDE"))
|
---|
1373 | *penmBoot = DEVPCBIOSBOOT_HD;
|
---|
1374 | else if (!strcmp(szBuf, "FLOPPY"))
|
---|
1375 | *penmBoot = DEVPCBIOSBOOT_FLOPPY;
|
---|
1376 | else if (!strcmp(szBuf, "LAN"))
|
---|
1377 | *penmBoot = DEVPCBIOSBOOT_LAN;
|
---|
1378 | else if (!strcmp(szBuf, "NONE"))
|
---|
1379 | *penmBoot = DEVPCBIOSBOOT_NONE;
|
---|
1380 | else
|
---|
1381 | rc = PDMDevHlpVMSetError(pDevIns, VERR_INVALID_PARAMETER, RT_SRC_POS,
|
---|
1382 | N_("Configuration error: The \"%s\" value \"%s\" is unknown"), pszParam, szBuf);
|
---|
1383 | return rc;
|
---|
1384 | }
|
---|
1385 |
|
---|
1386 |
|
---|
1387 | /**
|
---|
1388 | * @interface_method_impl{PDMDEVREG,pfnConstruct}
|
---|
1389 | */
|
---|
1390 | static DECLCALLBACK(int) pcbiosConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
|
---|
1391 | {
|
---|
1392 | PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
|
---|
1393 | PDEVPCBIOS pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPCBIOS);
|
---|
1394 | PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
|
---|
1395 | int rc;
|
---|
1396 | int cb;
|
---|
1397 | Assert(iInstance == 0); RT_NOREF(iInstance);
|
---|
1398 |
|
---|
1399 | /*
|
---|
1400 | * Validate configuration.
|
---|
1401 | */
|
---|
1402 | PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns,
|
---|
1403 | "BootDevice0"
|
---|
1404 | "|BootDevice1"
|
---|
1405 | "|BootDevice2"
|
---|
1406 | "|BootDevice3"
|
---|
1407 | "|HardDiskDevice"
|
---|
1408 | "|SataHardDiskDevice"
|
---|
1409 | "|SataLUN1"
|
---|
1410 | "|SataLUN2"
|
---|
1411 | "|SataLUN3"
|
---|
1412 | "|SataLUN4"
|
---|
1413 | "|ScsiHardDiskDevice"
|
---|
1414 | "|ScsiLUN1"
|
---|
1415 | "|ScsiLUN2"
|
---|
1416 | "|ScsiLUN3"
|
---|
1417 | "|ScsiLUN4"
|
---|
1418 | "|FloppyDevice"
|
---|
1419 | "|DelayBoot"
|
---|
1420 | "|BiosRom"
|
---|
1421 | "|LanBootRom"
|
---|
1422 | "|PXEDebug"
|
---|
1423 | "|UUID"
|
---|
1424 | "|UuidLe"
|
---|
1425 | "|IOAPIC"
|
---|
1426 | "|APIC"
|
---|
1427 | "|NumCPUs"
|
---|
1428 | "|McfgBase"
|
---|
1429 | "|McfgLength"
|
---|
1430 | "|DmiBIOSFirmwareMajor"
|
---|
1431 | "|DmiBIOSFirmwareMinor"
|
---|
1432 | "|DmiBIOSReleaseDate"
|
---|
1433 | "|DmiBIOSReleaseMajor"
|
---|
1434 | "|DmiBIOSReleaseMinor"
|
---|
1435 | "|DmiBIOSVendor"
|
---|
1436 | "|DmiBIOSVersion"
|
---|
1437 | "|DmiSystemFamily"
|
---|
1438 | "|DmiSystemProduct"
|
---|
1439 | "|DmiSystemSerial"
|
---|
1440 | "|DmiSystemSKU"
|
---|
1441 | "|DmiSystemUuid"
|
---|
1442 | "|DmiSystemVendor"
|
---|
1443 | "|DmiSystemVersion"
|
---|
1444 | "|DmiBoardAssetTag"
|
---|
1445 | "|DmiBoardBoardType"
|
---|
1446 | "|DmiBoardLocInChass"
|
---|
1447 | "|DmiBoardProduct"
|
---|
1448 | "|DmiBoardSerial"
|
---|
1449 | "|DmiBoardVendor"
|
---|
1450 | "|DmiBoardVersion"
|
---|
1451 | "|DmiChassisAssetTag"
|
---|
1452 | "|DmiChassisSerial"
|
---|
1453 | "|DmiChassisType"
|
---|
1454 | "|DmiChassisVendor"
|
---|
1455 | "|DmiChassisVersion"
|
---|
1456 | "|DmiProcManufacturer"
|
---|
1457 | "|DmiProcVersion"
|
---|
1458 | "|DmiOEMVBoxVer"
|
---|
1459 | "|DmiOEMVBoxRev"
|
---|
1460 | "|DmiUseHostInfo"
|
---|
1461 | "|DmiExposeMemoryTable"
|
---|
1462 | "|DmiExposeProcInf"
|
---|
1463 | "|CheckShutdownStatusForSoftReset"
|
---|
1464 | "|ClearShutdownStatusOnHardReset"
|
---|
1465 | ,
|
---|
1466 | "NetBoot");
|
---|
1467 | /*
|
---|
1468 | * Init the data.
|
---|
1469 | */
|
---|
1470 | rc = pHlp->pfnCFGMQueryU16Def(pCfg, "NumCPUs", &pThis->cCpus, 1);
|
---|
1471 | if (RT_FAILURE(rc))
|
---|
1472 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"NumCPUs\" as integer failed"));
|
---|
1473 |
|
---|
1474 | rc = pHlp->pfnCFGMQueryU64Def(pCfg, "McfgBase", &pThis->u64McfgBase, 0);
|
---|
1475 | if (RT_FAILURE(rc))
|
---|
1476 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"\" as integer failed"));
|
---|
1477 | rc = pHlp->pfnCFGMQueryU64Def(pCfg, "McfgLength", &pThis->cbMcfgLength, 0);
|
---|
1478 | if (RT_FAILURE(rc))
|
---|
1479 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"McfgLength\" as integer failed"));
|
---|
1480 |
|
---|
1481 |
|
---|
1482 | LogRel(("PcBios: [SMP] BIOS with %u CPUs\n", pThis->cCpus));
|
---|
1483 |
|
---|
1484 | rc = pHlp->pfnCFGMQueryU8Def(pCfg, "IOAPIC", &pThis->u8IOAPIC, 1);
|
---|
1485 | if (RT_FAILURE (rc))
|
---|
1486 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"IOAPIC\""));
|
---|
1487 |
|
---|
1488 | rc = pHlp->pfnCFGMQueryU8Def(pCfg, "APIC", &pThis->u8APICMode, 1);
|
---|
1489 | if (RT_FAILURE (rc))
|
---|
1490 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"APIC\""));
|
---|
1491 |
|
---|
1492 | static const char * const s_apszBootDevices[] = { "BootDevice0", "BootDevice1", "BootDevice2", "BootDevice3" };
|
---|
1493 | Assert(RT_ELEMENTS(s_apszBootDevices) == RT_ELEMENTS(pThis->aenmBootDevice));
|
---|
1494 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->aenmBootDevice); i++)
|
---|
1495 | {
|
---|
1496 | rc = pcbiosBootFromCfg(pDevIns, pCfg, s_apszBootDevices[i], &pThis->aenmBootDevice[i]);
|
---|
1497 | if (RT_FAILURE(rc))
|
---|
1498 | return rc;
|
---|
1499 | }
|
---|
1500 |
|
---|
1501 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "HardDiskDevice", &pThis->pszHDDevice);
|
---|
1502 | if (RT_FAILURE(rc))
|
---|
1503 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"HardDiskDevice\" as a string failed"));
|
---|
1504 |
|
---|
1505 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "FloppyDevice", &pThis->pszFDDevice);
|
---|
1506 | if (RT_FAILURE(rc))
|
---|
1507 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"FloppyDevice\" as a string failed"));
|
---|
1508 |
|
---|
1509 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "SataHardDiskDevice", &pThis->pszSataDevice);
|
---|
1510 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1511 | pThis->pszSataDevice = NULL;
|
---|
1512 | else if (RT_FAILURE(rc))
|
---|
1513 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"SataHardDiskDevice\" as a string failed"));
|
---|
1514 |
|
---|
1515 | if (pThis->pszSataDevice)
|
---|
1516 | {
|
---|
1517 | static const char * const s_apszSataDisks[] = { "SataLUN1", "SataLUN2", "SataLUN3", "SataLUN4" };
|
---|
1518 | Assert(RT_ELEMENTS(s_apszSataDisks) == RT_ELEMENTS(pThis->iSataHDLUN));
|
---|
1519 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->iSataHDLUN); i++)
|
---|
1520 | {
|
---|
1521 | rc = pHlp->pfnCFGMQueryU32(pCfg, s_apszSataDisks[i], &pThis->iSataHDLUN[i]);
|
---|
1522 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1523 | pThis->iSataHDLUN[i] = i;
|
---|
1524 | else if (RT_FAILURE(rc))
|
---|
1525 | return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1526 | N_("Configuration error: Querying \"%s\" as a string failed"), s_apszSataDisks);
|
---|
1527 | }
|
---|
1528 | }
|
---|
1529 |
|
---|
1530 | /* Repeat the exercise for SCSI drives. */
|
---|
1531 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "ScsiHardDiskDevice", &pThis->pszScsiDevice);
|
---|
1532 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1533 | pThis->pszScsiDevice = NULL;
|
---|
1534 | else if (RT_FAILURE(rc))
|
---|
1535 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"ScsiHardDiskDevice\" as a string failed"));
|
---|
1536 |
|
---|
1537 | if (pThis->pszScsiDevice)
|
---|
1538 | {
|
---|
1539 | static const char * const s_apszScsiDisks[] = { "ScsiLUN1", "ScsiLUN2", "ScsiLUN3", "ScsiLUN4" };
|
---|
1540 | Assert(RT_ELEMENTS(s_apszScsiDisks) == RT_ELEMENTS(pThis->iScsiHDLUN));
|
---|
1541 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->iScsiHDLUN); i++)
|
---|
1542 | {
|
---|
1543 | rc = pHlp->pfnCFGMQueryU32(pCfg, s_apszScsiDisks[i], &pThis->iScsiHDLUN[i]);
|
---|
1544 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1545 | pThis->iScsiHDLUN[i] = i;
|
---|
1546 | else if (RT_FAILURE(rc))
|
---|
1547 | return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1548 | N_("Configuration error: Querying \"%s\" as a string failed"), s_apszScsiDisks);
|
---|
1549 | }
|
---|
1550 | }
|
---|
1551 |
|
---|
1552 | /* PXE debug logging option. */
|
---|
1553 | rc = pHlp->pfnCFGMQueryU8Def(pCfg, "PXEDebug", &pThis->u8PXEDebug, false);
|
---|
1554 | if (RT_FAILURE(rc))
|
---|
1555 | return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Querying \"PXEDebug\" as integer failed"));
|
---|
1556 |
|
---|
1557 |
|
---|
1558 | /*
|
---|
1559 | * Register the I/O Ports.
|
---|
1560 | */
|
---|
1561 | IOMIOPORTHANDLE hIoPorts;
|
---|
1562 | rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x400 /*uPort*/, 4 /*cPorts*/, pcbiosIOPortDebugWrite, pcbiosIOPortDebugRead,
|
---|
1563 | "Bochs PC BIOS - Panic & Debug", NULL, &hIoPorts);
|
---|
1564 | AssertRCReturn(rc, rc);
|
---|
1565 |
|
---|
1566 | rc = PDMDevHlpIoPortCreateIsa(pDevIns, 1 /*cPorts*/, pcbiosIOPortControlWrite, pcbiosIOPortControlRead, NULL /*pvUser*/,
|
---|
1567 | "PC BIOS - Control", NULL /*paExtDescs*/, &pThis->hIoPortControl);
|
---|
1568 | AssertRCReturn(rc, rc);
|
---|
1569 | rc = pcbiosRegisterControl(pDevIns, pThis, true /* fNewControlPort */);
|
---|
1570 | AssertRCReturn(rc, rc);
|
---|
1571 |
|
---|
1572 | /*
|
---|
1573 | * Register SSM handlers, for remembering which shutdown port to use.
|
---|
1574 | */
|
---|
1575 | rc = PDMDevHlpSSMRegisterEx(pDevIns, PCBIOS_SSM_VERSION, 1 /* cbGuess */, NULL,
|
---|
1576 | NULL, NULL, NULL,
|
---|
1577 | NULL, pcbiosSaveExec, NULL,
|
---|
1578 | pcbiosLoadPrep, pcbiosLoadExec, pcbiosLoadDone);
|
---|
1579 |
|
---|
1580 | /* Clear the net boot device list. All bits set invokes old behavior,
|
---|
1581 | * as if no second CMOS bank was present.
|
---|
1582 | */
|
---|
1583 | memset(&pThis->au16NetBootDev, 0xff, sizeof(pThis->au16NetBootDev));
|
---|
1584 |
|
---|
1585 | /*
|
---|
1586 | * Determine the network boot order.
|
---|
1587 | */
|
---|
1588 | PCFGMNODE pCfgNetBoot = pHlp->pfnCFGMGetChild(pCfg, "NetBoot");
|
---|
1589 | if (pCfgNetBoot == NULL)
|
---|
1590 | {
|
---|
1591 | /* Do nothing. */
|
---|
1592 | rc = VINF_SUCCESS;
|
---|
1593 | }
|
---|
1594 | else
|
---|
1595 | {
|
---|
1596 | PCFGMNODE pCfgNetBootDevice;
|
---|
1597 | uint8_t u8PciBus;
|
---|
1598 | uint8_t u8PciDev;
|
---|
1599 | uint8_t u8PciFn;
|
---|
1600 | uint16_t u16BusDevFn;
|
---|
1601 | char szIndex[] = "?";
|
---|
1602 |
|
---|
1603 | Assert(pCfgNetBoot);
|
---|
1604 | for (unsigned i = 0; i < NET_BOOT_DEVS; ++i)
|
---|
1605 | {
|
---|
1606 | szIndex[0] = '0' + i;
|
---|
1607 | pCfgNetBootDevice = pHlp->pfnCFGMGetChild(pCfgNetBoot, szIndex);
|
---|
1608 |
|
---|
1609 | rc = pHlp->pfnCFGMQueryU8(pCfgNetBootDevice, "PCIBusNo", &u8PciBus);
|
---|
1610 | if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
|
---|
1611 | {
|
---|
1612 | /* Do nothing and stop iterating. */
|
---|
1613 | rc = VINF_SUCCESS;
|
---|
1614 | break;
|
---|
1615 | }
|
---|
1616 | else if (RT_FAILURE(rc))
|
---|
1617 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1618 | N_("Configuration error: Querying \"Netboot/x/PCIBusNo\" as integer failed"));
|
---|
1619 | rc = pHlp->pfnCFGMQueryU8(pCfgNetBootDevice, "PCIDeviceNo", &u8PciDev);
|
---|
1620 | if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
|
---|
1621 | {
|
---|
1622 | /* Do nothing and stop iterating. */
|
---|
1623 | rc = VINF_SUCCESS;
|
---|
1624 | break;
|
---|
1625 | }
|
---|
1626 | else if (RT_FAILURE(rc))
|
---|
1627 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1628 | N_("Configuration error: Querying \"Netboot/x/PCIDeviceNo\" as integer failed"));
|
---|
1629 | rc = pHlp->pfnCFGMQueryU8(pCfgNetBootDevice, "PCIFunctionNo", &u8PciFn);
|
---|
1630 | if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT)
|
---|
1631 | {
|
---|
1632 | /* Do nothing and stop iterating. */
|
---|
1633 | rc = VINF_SUCCESS;
|
---|
1634 | break;
|
---|
1635 | }
|
---|
1636 | else if (RT_FAILURE(rc))
|
---|
1637 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1638 | N_("Configuration error: Querying \"Netboot/x/PCIFunctionNo\" as integer failed"));
|
---|
1639 | u16BusDevFn = (((uint16_t)u8PciBus) << 8) | ((u8PciDev & 0x1F) << 3) | (u8PciFn & 0x7);
|
---|
1640 | pThis->au16NetBootDev[i] = u16BusDevFn;
|
---|
1641 | }
|
---|
1642 | }
|
---|
1643 |
|
---|
1644 | /*
|
---|
1645 | * Get the system BIOS ROM file name.
|
---|
1646 | */
|
---|
1647 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "BiosRom", &pThis->pszPcBiosFile);
|
---|
1648 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1649 | {
|
---|
1650 | pThis->pszPcBiosFile = NULL;
|
---|
1651 | rc = VINF_SUCCESS;
|
---|
1652 | }
|
---|
1653 | else if (RT_FAILURE(rc))
|
---|
1654 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1655 | N_("Configuration error: Querying \"BiosRom\" as a string failed"));
|
---|
1656 | else if (!*pThis->pszPcBiosFile)
|
---|
1657 | {
|
---|
1658 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszPcBiosFile);
|
---|
1659 | pThis->pszPcBiosFile = NULL;
|
---|
1660 | }
|
---|
1661 |
|
---|
1662 | /*
|
---|
1663 | * Get the CPU arch so we can load the appropriate ROMs.
|
---|
1664 | */
|
---|
1665 | CPUMMICROARCH const enmMicroarch = PDMDevHlpCpuGetGuestMicroarch(pDevIns);
|
---|
1666 |
|
---|
1667 | if (pThis->pszPcBiosFile)
|
---|
1668 | {
|
---|
1669 | /*
|
---|
1670 | * Load the BIOS ROM.
|
---|
1671 | */
|
---|
1672 | RTFILE hFilePcBios;
|
---|
1673 | rc = RTFileOpen(&hFilePcBios, pThis->pszPcBiosFile,
|
---|
1674 | RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE);
|
---|
1675 | if (RT_SUCCESS(rc))
|
---|
1676 | {
|
---|
1677 | /* Figure the size and check restrictions. */
|
---|
1678 | uint64_t cbPcBios;
|
---|
1679 | rc = RTFileQuerySize(hFilePcBios, &cbPcBios);
|
---|
1680 | if (RT_SUCCESS(rc))
|
---|
1681 | {
|
---|
1682 | pThis->cbPcBios = (uint32_t)cbPcBios;
|
---|
1683 | if ( RT_ALIGN(pThis->cbPcBios, _64K) == pThis->cbPcBios
|
---|
1684 | && pThis->cbPcBios == cbPcBios
|
---|
1685 | && pThis->cbPcBios <= 32 * _64K
|
---|
1686 | && pThis->cbPcBios >= _64K)
|
---|
1687 | {
|
---|
1688 | pThis->pu8PcBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThis->cbPcBios);
|
---|
1689 | if (pThis->pu8PcBios)
|
---|
1690 | {
|
---|
1691 | rc = RTFileRead(hFilePcBios, pThis->pu8PcBios, pThis->cbPcBios, NULL);
|
---|
1692 | if (RT_FAILURE(rc))
|
---|
1693 | rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1694 | N_("Error reading the BIOS image ('%s)"), pThis->pszPcBiosFile);
|
---|
1695 | }
|
---|
1696 | else
|
---|
1697 | rc = PDMDevHlpVMSetError(pDevIns, VERR_NO_MEMORY, RT_SRC_POS,
|
---|
1698 | N_("Failed to allocate %#x bytes for loading the BIOS image"),
|
---|
1699 | pThis->cbPcBios);
|
---|
1700 | }
|
---|
1701 | else
|
---|
1702 | rc = PDMDevHlpVMSetError(pDevIns, VERR_OUT_OF_RANGE, RT_SRC_POS,
|
---|
1703 | N_("Invalid system BIOS file size ('%s'): %#llx (%llu)"),
|
---|
1704 | pThis->pszPcBiosFile, cbPcBios, cbPcBios);
|
---|
1705 | }
|
---|
1706 | else
|
---|
1707 | rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1708 | N_("Failed to query the system BIOS file size ('%s')"),
|
---|
1709 | pThis->pszPcBiosFile);
|
---|
1710 | RTFileClose(hFilePcBios);
|
---|
1711 | }
|
---|
1712 | else
|
---|
1713 | rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
|
---|
1714 | N_("Failed to open system BIOS file '%s'"), pThis->pszPcBiosFile);
|
---|
1715 | if (RT_FAILURE(rc))
|
---|
1716 | return rc;
|
---|
1717 |
|
---|
1718 | LogRel(("PcBios: Using BIOS ROM '%s' with a size of %#x bytes\n", pThis->pszPcBiosFile, pThis->cbPcBios));
|
---|
1719 | }
|
---|
1720 | else
|
---|
1721 | {
|
---|
1722 | /*
|
---|
1723 | * Use one of the embedded BIOS ROM images.
|
---|
1724 | */
|
---|
1725 | uint8_t const *pbBios;
|
---|
1726 | uint32_t cbBios;
|
---|
1727 | if ( enmMicroarch == kCpumMicroarch_Intel_8086
|
---|
1728 | || enmMicroarch == kCpumMicroarch_Intel_80186
|
---|
1729 | || enmMicroarch == kCpumMicroarch_NEC_V20
|
---|
1730 | || enmMicroarch == kCpumMicroarch_NEC_V30)
|
---|
1731 | {
|
---|
1732 | pbBios = g_abPcBiosBinary8086;
|
---|
1733 | cbBios = g_cbPcBiosBinary8086;
|
---|
1734 | LogRel(("PcBios: Using the 8086 BIOS image!\n"));
|
---|
1735 | }
|
---|
1736 | else if (enmMicroarch == kCpumMicroarch_Intel_80286)
|
---|
1737 | {
|
---|
1738 | pbBios = g_abPcBiosBinary286;
|
---|
1739 | cbBios = g_cbPcBiosBinary286;
|
---|
1740 | LogRel(("PcBios: Using the 286 BIOS image!\n"));
|
---|
1741 | }
|
---|
1742 | else
|
---|
1743 | {
|
---|
1744 | pbBios = g_abPcBiosBinary386;
|
---|
1745 | cbBios = g_cbPcBiosBinary386;
|
---|
1746 | LogRel(("PcBios: Using the 386+ BIOS image.\n"));
|
---|
1747 | }
|
---|
1748 | pThis->pu8PcBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, cbBios);
|
---|
1749 | if (pThis->pu8PcBios)
|
---|
1750 | {
|
---|
1751 | pThis->cbPcBios = cbBios;
|
---|
1752 | memcpy(pThis->pu8PcBios, pbBios, cbBios);
|
---|
1753 | }
|
---|
1754 | else
|
---|
1755 | return PDMDevHlpVMSetError(pDevIns, VERR_NO_MEMORY, RT_SRC_POS,
|
---|
1756 | N_("Failed to allocate %#x bytes for loading the embedded BIOS image"), cbBios);
|
---|
1757 | }
|
---|
1758 | const uint8_t *pu8PcBiosBinary = pThis->pu8PcBios;
|
---|
1759 | uint32_t cbPcBiosBinary = pThis->cbPcBios;
|
---|
1760 |
|
---|
1761 | /*
|
---|
1762 | * Query the machine's UUID for SMBIOS/DMI use.
|
---|
1763 | */
|
---|
1764 | RTUUID uuid;
|
---|
1765 | rc = pHlp->pfnCFGMQueryBytes(pCfg, "UUID", &uuid, sizeof(uuid));
|
---|
1766 | if (RT_FAILURE(rc))
|
---|
1767 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1768 | N_("Configuration error: Querying \"UUID\" failed"));
|
---|
1769 |
|
---|
1770 | bool fUuidLe;
|
---|
1771 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "UuidLe", &fUuidLe, false);
|
---|
1772 | if (RT_FAILURE(rc))
|
---|
1773 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1774 | N_("Configuration error: Querying \"UuidLe\" failed"));
|
---|
1775 |
|
---|
1776 | if (!fUuidLe)
|
---|
1777 | {
|
---|
1778 | /*
|
---|
1779 | * UUIDs are stored little endian actually (see chapter 7.2.1 System — UUID
|
---|
1780 | * of the DMI/SMBIOS spec) but to not force reactivation of existing guests we have
|
---|
1781 | * to carry this bug along... (see also DevEFI.cpp when changing this)
|
---|
1782 | *
|
---|
1783 | * Convert the UUID to network byte order. Not entirely straightforward as
|
---|
1784 | * parts are MSB already...
|
---|
1785 | */
|
---|
1786 | uuid.Gen.u32TimeLow = RT_H2BE_U32(uuid.Gen.u32TimeLow);
|
---|
1787 | uuid.Gen.u16TimeMid = RT_H2BE_U16(uuid.Gen.u16TimeMid);
|
---|
1788 | uuid.Gen.u16TimeHiAndVersion = RT_H2BE_U16(uuid.Gen.u16TimeHiAndVersion);
|
---|
1789 | }
|
---|
1790 |
|
---|
1791 | uint16_t cbDmiTables = 0;
|
---|
1792 | uint16_t cDmiTables = 0;
|
---|
1793 | rc = FwCommonPlantDMITable(pDevIns, pThis->au8DMIPage, VBOX_DMI_TABLE_SIZE,
|
---|
1794 | &uuid, pCfg, pThis->cCpus, &cbDmiTables, &cDmiTables,
|
---|
1795 | false /*fUefi*/);
|
---|
1796 | if (RT_FAILURE(rc))
|
---|
1797 | return rc;
|
---|
1798 |
|
---|
1799 | /* Look for _SM_/_DMI_ anchor strings within the BIOS and replace the table headers. */
|
---|
1800 | unsigned offAnchor = ~0U;
|
---|
1801 | unsigned const cbToSearch = pThis->cbPcBios - 32;
|
---|
1802 | for (unsigned off = 0; off <= cbToSearch; off += 16)
|
---|
1803 | {
|
---|
1804 | if ( pThis->pu8PcBios[off + 0x00] != '_'
|
---|
1805 | || pThis->pu8PcBios[off + 0x01] != 'S'
|
---|
1806 | || pThis->pu8PcBios[off + 0x02] != 'M'
|
---|
1807 | || pThis->pu8PcBios[off + 0x03] != '_'
|
---|
1808 | || pThis->pu8PcBios[off + 0x10] != '_'
|
---|
1809 | || pThis->pu8PcBios[off + 0x11] != 'D'
|
---|
1810 | || pThis->pu8PcBios[off + 0x12] != 'M'
|
---|
1811 | || pThis->pu8PcBios[off + 0x13] != 'I'
|
---|
1812 | || pThis->pu8PcBios[off + 0x14] != '_')
|
---|
1813 | { /* likely */ }
|
---|
1814 | else
|
---|
1815 | {
|
---|
1816 | offAnchor = off;
|
---|
1817 | FwCommonPlantSmbiosAndDmiHdrs(pDevIns, pThis->pu8PcBios + off, cbDmiTables, cDmiTables);
|
---|
1818 | break;
|
---|
1819 | }
|
---|
1820 | }
|
---|
1821 | AssertLogRel(offAnchor <= cbToSearch);
|
---|
1822 |
|
---|
1823 | if (pThis->u8IOAPIC)
|
---|
1824 | {
|
---|
1825 | pThis->u32MPTableAddr = VBOX_DMI_TABLE_BASE + VBOX_DMI_TABLE_SIZE;
|
---|
1826 | FwCommonPlantMpsTable(pDevIns, pThis->au8DMIPage /* aka VBOX_DMI_TABLE_BASE */ + VBOX_DMI_TABLE_SIZE,
|
---|
1827 | _4K - VBOX_DMI_TABLE_SIZE, pThis->cCpus);
|
---|
1828 | LogRel(("PcBios: MPS table at %08x\n", pThis->u32MPTableAddr));
|
---|
1829 | }
|
---|
1830 |
|
---|
1831 | rc = PDMDevHlpROMRegister(pDevIns, VBOX_DMI_TABLE_BASE, _4K, pThis->au8DMIPage, _4K,
|
---|
1832 | PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "DMI tables");
|
---|
1833 | if (RT_FAILURE(rc))
|
---|
1834 | return rc;
|
---|
1835 |
|
---|
1836 | /*
|
---|
1837 | * Map the BIOS into memory.
|
---|
1838 | * There are two mappings:
|
---|
1839 | * 1. 0x000e0000 to 0x000fffff contains the last 128 kb of the bios.
|
---|
1840 | * The bios code might be 64 kb in size, and will then start at 0xf0000.
|
---|
1841 | * 2. 0xfffxxxxx to 0xffffffff contains the entire bios.
|
---|
1842 | */
|
---|
1843 | AssertReleaseMsg(cbPcBiosBinary >= _64K, ("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
|
---|
1844 | AssertReleaseMsg(RT_ALIGN_Z(cbPcBiosBinary, _64K) == cbPcBiosBinary,
|
---|
1845 | ("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
|
---|
1846 | cb = RT_MIN(cbPcBiosBinary, 128 * _1K); /* Effectively either 64 or 128K. */
|
---|
1847 | rc = PDMDevHlpROMRegister(pDevIns, 0x00100000 - cb, cb, &pu8PcBiosBinary[cbPcBiosBinary - cb], cb,
|
---|
1848 | PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "PC BIOS - 0xfffff");
|
---|
1849 | if (RT_FAILURE(rc))
|
---|
1850 | return rc;
|
---|
1851 | rc = PDMDevHlpROMRegister(pDevIns, (uint32_t)-(int32_t)cbPcBiosBinary, cbPcBiosBinary, pu8PcBiosBinary, cbPcBiosBinary,
|
---|
1852 | PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "PC BIOS - 0xffffffff");
|
---|
1853 | if (RT_FAILURE(rc))
|
---|
1854 | return rc;
|
---|
1855 |
|
---|
1856 | /*
|
---|
1857 | * Get the LAN boot ROM file name.
|
---|
1858 | */
|
---|
1859 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "LanBootRom", &pThis->pszLanBootFile);
|
---|
1860 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
1861 | {
|
---|
1862 | pThis->pszLanBootFile = NULL;
|
---|
1863 | rc = VINF_SUCCESS;
|
---|
1864 | }
|
---|
1865 | else if (RT_FAILURE(rc))
|
---|
1866 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1867 | N_("Configuration error: Querying \"LanBootRom\" as a string failed"));
|
---|
1868 | else if (!*pThis->pszLanBootFile)
|
---|
1869 | {
|
---|
1870 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszLanBootFile);
|
---|
1871 | pThis->pszLanBootFile = NULL;
|
---|
1872 | }
|
---|
1873 |
|
---|
1874 | /*
|
---|
1875 | * Not loading LAN ROM for old CPUs.
|
---|
1876 | */
|
---|
1877 | if ( enmMicroarch != kCpumMicroarch_Intel_8086
|
---|
1878 | && enmMicroarch != kCpumMicroarch_Intel_80186
|
---|
1879 | && enmMicroarch != kCpumMicroarch_NEC_V20
|
---|
1880 | && enmMicroarch != kCpumMicroarch_NEC_V30
|
---|
1881 | && enmMicroarch != kCpumMicroarch_Intel_80286)
|
---|
1882 | {
|
---|
1883 | const uint8_t *pu8LanBootBinary = NULL;
|
---|
1884 | uint64_t cbLanBootBinary;
|
---|
1885 | uint64_t cbFileLanBoot = 0;
|
---|
1886 |
|
---|
1887 | /*
|
---|
1888 | * Open the LAN boot ROM and figure it size.
|
---|
1889 | * Determine the LAN boot ROM size, open specified ROM file in the process.
|
---|
1890 | */
|
---|
1891 | if (pThis->pszLanBootFile)
|
---|
1892 | {
|
---|
1893 | RTFILE hFileLanBoot = NIL_RTFILE;
|
---|
1894 | rc = RTFileOpen(&hFileLanBoot, pThis->pszLanBootFile,
|
---|
1895 | RTFILE_O_READ | RTFILE_O_OPEN | RTFILE_O_DENY_WRITE);
|
---|
1896 | if (RT_SUCCESS(rc))
|
---|
1897 | {
|
---|
1898 | rc = RTFileQuerySize(hFileLanBoot, &cbFileLanBoot);
|
---|
1899 | if (RT_SUCCESS(rc))
|
---|
1900 | {
|
---|
1901 | if (cbFileLanBoot <= _64K - (VBOX_LANBOOT_SEG << 4 & 0xffff))
|
---|
1902 | {
|
---|
1903 | LogRel(("PcBios: Using LAN ROM '%s' with a size of %#x bytes\n", pThis->pszLanBootFile, cbFileLanBoot));
|
---|
1904 |
|
---|
1905 | /*
|
---|
1906 | * Allocate buffer for the LAN boot ROM data and load it.
|
---|
1907 | */
|
---|
1908 | pThis->pu8LanBoot = (uint8_t *)PDMDevHlpMMHeapAllocZ(pDevIns, cbFileLanBoot);
|
---|
1909 | if (pThis->pu8LanBoot)
|
---|
1910 | {
|
---|
1911 | rc = RTFileRead(hFileLanBoot, pThis->pu8LanBoot, cbFileLanBoot, NULL);
|
---|
1912 | AssertLogRelRCReturnStmt(rc, RTFileClose(hFileLanBoot), rc);
|
---|
1913 | }
|
---|
1914 | else
|
---|
1915 | rc = VERR_NO_MEMORY;
|
---|
1916 | }
|
---|
1917 | else
|
---|
1918 | rc = VERR_TOO_MUCH_DATA;
|
---|
1919 | }
|
---|
1920 | RTFileClose(hFileLanBoot);
|
---|
1921 | }
|
---|
1922 | if (RT_FAILURE(rc))
|
---|
1923 | {
|
---|
1924 | /*
|
---|
1925 | * Play stupid and ignore failures, falling back to the built-in LAN boot ROM.
|
---|
1926 | */
|
---|
1927 | /** @todo r=bird: This should have some kind of rational. We don't usually
|
---|
1928 | * ignore the VM configuration. */
|
---|
1929 | LogRel(("PcBios: Failed to open LAN boot ROM file '%s', rc=%Rrc!\n", pThis->pszLanBootFile, rc));
|
---|
1930 | PDMDevHlpMMHeapFree(pDevIns, pThis->pszLanBootFile);
|
---|
1931 | pThis->pszLanBootFile = NULL;
|
---|
1932 | }
|
---|
1933 | }
|
---|
1934 |
|
---|
1935 | /* If we were unable to get the data from file for whatever reason, fall
|
---|
1936 | * back to the built-in LAN boot ROM image.
|
---|
1937 | */
|
---|
1938 | if (pThis->pu8LanBoot == NULL)
|
---|
1939 | {
|
---|
1940 | #ifdef VBOX_WITH_PXE_ROM
|
---|
1941 | pu8LanBootBinary = g_abNetBiosBinary;
|
---|
1942 | cbLanBootBinary = g_cbNetBiosBinary;
|
---|
1943 | #endif
|
---|
1944 | }
|
---|
1945 | else
|
---|
1946 | {
|
---|
1947 | pu8LanBootBinary = pThis->pu8LanBoot;
|
---|
1948 | cbLanBootBinary = cbFileLanBoot;
|
---|
1949 | }
|
---|
1950 |
|
---|
1951 | /*
|
---|
1952 | * Map the Network Boot ROM into memory.
|
---|
1953 | *
|
---|
1954 | * Currently there is a fixed mapping: 0x000e2000 to 0x000effff contains
|
---|
1955 | * the (up to) 56 kb ROM image. The mapping size is fixed to trouble with
|
---|
1956 | * the saved state (in PGM).
|
---|
1957 | */
|
---|
1958 | if (pu8LanBootBinary)
|
---|
1959 | {
|
---|
1960 | pThis->cbLanBoot = cbLanBootBinary;
|
---|
1961 |
|
---|
1962 | rc = PDMDevHlpROMRegister(pDevIns, VBOX_LANBOOT_SEG << 4,
|
---|
1963 | RT_MAX(cbLanBootBinary, _64K - (VBOX_LANBOOT_SEG << 4 & 0xffff)),
|
---|
1964 | pu8LanBootBinary, cbLanBootBinary,
|
---|
1965 | PGMPHYS_ROM_FLAGS_SHADOWED, "Net Boot ROM");
|
---|
1966 | AssertRCReturn(rc, rc);
|
---|
1967 | }
|
---|
1968 | }
|
---|
1969 | else if (pThis->pszLanBootFile)
|
---|
1970 | LogRel(("PcBios: Skipping LAN ROM '%s' due to ancient target CPU.\n", pThis->pszLanBootFile));
|
---|
1971 | #ifdef VBOX_WITH_PXE_ROM
|
---|
1972 | else
|
---|
1973 | LogRel(("PcBios: Skipping built in ROM due to ancient target CPU.\n"));
|
---|
1974 | #endif
|
---|
1975 |
|
---|
1976 | /*
|
---|
1977 | * Configure Boot delay.
|
---|
1978 | */
|
---|
1979 | rc = pHlp->pfnCFGMQueryU8Def(pCfg, "DelayBoot", &pThis->uBootDelay, 0);
|
---|
1980 | if (RT_FAILURE(rc))
|
---|
1981 | return PDMDEV_SET_ERROR(pDevIns, rc,
|
---|
1982 | N_("Configuration error: Querying \"DelayBoot\" as integer failed"));
|
---|
1983 | if (pThis->uBootDelay > 15)
|
---|
1984 | pThis->uBootDelay = 15;
|
---|
1985 |
|
---|
1986 |
|
---|
1987 | /*
|
---|
1988 | * Read shutdown status code config and register ourselves as the firmware device.
|
---|
1989 | */
|
---|
1990 |
|
---|
1991 | /** @cfgm{CheckShutdownStatusForSoftReset, boolean, true}
|
---|
1992 | * Whether to consult the shutdown status code (CMOS register 0Fh) to
|
---|
1993 | * determine whether the guest intended a soft or hard reset. Currently only
|
---|
1994 | * shutdown status codes 05h, 09h and 0Ah are considered soft reset. */
|
---|
1995 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "CheckShutdownStatusForSoftReset", &pThis->fCheckShutdownStatusForSoftReset, true);
|
---|
1996 | AssertLogRelRCReturn(rc, rc);
|
---|
1997 |
|
---|
1998 | /** @cfgm{ClearShutdownStatusOnHardReset, boolean, true}
|
---|
1999 | * Whether to clear the shutdown status code (CMOS register 0Fh) on hard reset. */
|
---|
2000 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "ClearShutdownStatusOnHardReset", &pThis->fClearShutdownStatusOnHardReset, true);
|
---|
2001 | AssertLogRelRCReturn(rc, rc);
|
---|
2002 |
|
---|
2003 | LogRel(("PcBios: fCheckShutdownStatusForSoftReset=%RTbool fClearShutdownStatusOnHardReset=%RTbool\n",
|
---|
2004 | pThis->fCheckShutdownStatusForSoftReset, pThis->fClearShutdownStatusOnHardReset));
|
---|
2005 |
|
---|
2006 | static PDMFWREG const s_FwReg = { PDM_FWREG_VERSION, pcbiosFw_IsHardReset, PDM_FWREG_VERSION };
|
---|
2007 | rc = PDMDevHlpFirmwareRegister(pDevIns, &s_FwReg, &pThis->pFwHlpR3);
|
---|
2008 | AssertLogRelRCReturn(rc, rc);
|
---|
2009 |
|
---|
2010 | return VINF_SUCCESS;
|
---|
2011 | }
|
---|
2012 |
|
---|
2013 |
|
---|
2014 | /**
|
---|
2015 | * The device registration structure.
|
---|
2016 | */
|
---|
2017 | const PDMDEVREG g_DevicePcBios =
|
---|
2018 | {
|
---|
2019 | /* .u32Version = */ PDM_DEVREG_VERSION,
|
---|
2020 | /* .uReserved0 = */ 0,
|
---|
2021 | /* .szName = */ "pcbios",
|
---|
2022 | /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_NEW_STYLE,
|
---|
2023 | /* .fClass = */ PDM_DEVREG_CLASS_ARCH_BIOS,
|
---|
2024 | /* .cMaxInstances = */ 1,
|
---|
2025 | /* .uSharedVersion = */ 42,
|
---|
2026 | /* .cbInstanceShared = */ sizeof(DEVPCBIOS),
|
---|
2027 | /* .cbInstanceCC = */ 0,
|
---|
2028 | /* .cbInstanceRC = */ 0,
|
---|
2029 | /* .cMaxPciDevices = */ 0,
|
---|
2030 | /* .cMaxMsixVectors = */ 0,
|
---|
2031 | /* .pszDescription = */ "PC BIOS Device",
|
---|
2032 | #if defined(IN_RING3)
|
---|
2033 | /* .pszRCMod = */ "",
|
---|
2034 | /* .pszR0Mod = */ "",
|
---|
2035 | /* .pfnConstruct = */ pcbiosConstruct,
|
---|
2036 | /* .pfnDestruct = */ pcbiosDestruct,
|
---|
2037 | /* .pfnRelocate = */ NULL,
|
---|
2038 | /* .pfnMemSetup = */ pcbiosMemSetup,
|
---|
2039 | /* .pfnPowerOn = */ NULL,
|
---|
2040 | /* .pfnReset = */ pcbiosReset,
|
---|
2041 | /* .pfnSuspend = */ NULL,
|
---|
2042 | /* .pfnResume = */ NULL,
|
---|
2043 | /* .pfnAttach = */ NULL,
|
---|
2044 | /* .pfnDetach = */ NULL,
|
---|
2045 | /* .pfnQueryInterface = */ NULL,
|
---|
2046 | /* .pfnInitComplete = */ pcbiosInitComplete,
|
---|
2047 | /* .pfnPowerOff = */ NULL,
|
---|
2048 | /* .pfnSoftReset = */ NULL,
|
---|
2049 | /* .pfnReserved0 = */ NULL,
|
---|
2050 | /* .pfnReserved1 = */ NULL,
|
---|
2051 | /* .pfnReserved2 = */ NULL,
|
---|
2052 | /* .pfnReserved3 = */ NULL,
|
---|
2053 | /* .pfnReserved4 = */ NULL,
|
---|
2054 | /* .pfnReserved5 = */ NULL,
|
---|
2055 | /* .pfnReserved6 = */ NULL,
|
---|
2056 | /* .pfnReserved7 = */ NULL,
|
---|
2057 | #elif defined(IN_RING0)
|
---|
2058 | /* .pfnEarlyConstruct = */ NULL,
|
---|
2059 | /* .pfnConstruct = */ NULL,
|
---|
2060 | /* .pfnDestruct = */ NULL,
|
---|
2061 | /* .pfnFinalDestruct = */ NULL,
|
---|
2062 | /* .pfnRequest = */ NULL,
|
---|
2063 | /* .pfnReserved0 = */ NULL,
|
---|
2064 | /* .pfnReserved1 = */ NULL,
|
---|
2065 | /* .pfnReserved2 = */ NULL,
|
---|
2066 | /* .pfnReserved3 = */ NULL,
|
---|
2067 | /* .pfnReserved4 = */ NULL,
|
---|
2068 | /* .pfnReserved5 = */ NULL,
|
---|
2069 | /* .pfnReserved6 = */ NULL,
|
---|
2070 | /* .pfnReserved7 = */ NULL,
|
---|
2071 | #elif defined(IN_RC)
|
---|
2072 | /* .pfnConstruct = */ NULL,
|
---|
2073 | /* .pfnReserved0 = */ NULL,
|
---|
2074 | /* .pfnReserved1 = */ NULL,
|
---|
2075 | /* .pfnReserved2 = */ NULL,
|
---|
2076 | /* .pfnReserved3 = */ NULL,
|
---|
2077 | /* .pfnReserved4 = */ NULL,
|
---|
2078 | /* .pfnReserved5 = */ NULL,
|
---|
2079 | /* .pfnReserved6 = */ NULL,
|
---|
2080 | /* .pfnReserved7 = */ NULL,
|
---|
2081 | #else
|
---|
2082 | # error "Not in IN_RING3, IN_RING0 or IN_RC!"
|
---|
2083 | #endif
|
---|
2084 | /* .u32VersionEnd = */ PDM_DEVREG_VERSION
|
---|
2085 | };
|
---|
2086 |
|
---|