1 | /** @file
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2 | * IOM - Input / Output Monitor. (VMM)
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3 | */
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4 |
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5 | /*
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6 | * Copyright (C) 2006-2007 Oracle Corporation
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7 | *
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8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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9 | * available from http://www.virtualbox.org. This file is free software;
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10 | * you can redistribute it and/or modify it under the terms of the GNU
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11 | * General Public License (GPL) as published by the Free Software
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12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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15 | *
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16 | * The contents of this file may alternatively be used under the terms
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17 | * of the Common Development and Distribution License Version 1.0
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18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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19 | * VirtualBox OSE distribution, in which case the provisions of the
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20 | * CDDL are applicable instead of those of the GPL.
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21 | *
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22 | * You may elect to license modified versions of this file under the
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23 | * terms and conditions of either the GPL or the CDDL or both.
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24 | */
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25 |
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26 | #ifndef ___VBox_iom_h
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27 | #define ___VBox_iom_h
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28 |
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29 | #include <VBox/cdefs.h>
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30 | #include <VBox/types.h>
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31 | #include <VBox/dis.h>
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32 |
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33 | RT_C_DECLS_BEGIN
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34 |
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35 |
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36 | /** @defgroup grp_iom The Input / Ouput Monitor API
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37 | * @{
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38 | */
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39 |
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40 | /** @def IOM_NO_PDMINS_CHECKS
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41 | * Until all devices have been fully adjusted to PDM style, the pPdmIns
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42 | * parameter is not checked by IOM.
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43 | * @todo Check this again, now.
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44 | */
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45 | #define IOM_NO_PDMINS_CHECKS
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46 |
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47 | /**
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48 | * Macro for checking if an I/O or MMIO emulation call succeeded.
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49 | *
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50 | * This macro shall only be used with the IOM APIs where it's mentioned
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51 | * in the return value description. And there is must be used to correctly
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52 | * determin if the call succeeded and things like the EIP needs updating.
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53 | *
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54 | *
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55 | * @returns Success indicator (true/false).
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56 | *
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57 | * @param rc The status code. This may be evaluated
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58 | * more than once!
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59 | *
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60 | * @remark To avoid making assumptions about the layout of the
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61 | * VINF_EM_FIRST...VINF_EM_LAST range we're checking
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62 | * explicitly for each for exach the exceptions.
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63 | * However, for efficieny we ASSUME that the
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64 | * VINF_EM_LAST is smaller than most of the relevant
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65 | * status codes. We also ASSUME that the
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66 | * VINF_EM_RESCHEDULE_REM status code is the most
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67 | * frequent status code we'll enounter in this range.
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68 | *
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69 | * @todo Will have to add VINF_EM_DBG_HYPER_BREAKPOINT if the
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70 | * I/O port and MMIO breakpoints should trigger before
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71 | * the I/O is done. Currently, we don't implement these
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72 | * kind of breakpoints.
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73 | */
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74 | #define IOM_SUCCESS(rc) ( (rc) == VINF_SUCCESS \
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75 | || ( (rc) <= VINF_EM_LAST \
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76 | && (rc) != VINF_EM_RESCHEDULE_REM \
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77 | && (rc) >= VINF_EM_FIRST \
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78 | && (rc) != VINF_EM_RESCHEDULE_RAW \
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79 | && (rc) != VINF_EM_RESCHEDULE_HWACC \
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80 | ) \
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81 | )
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82 |
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83 |
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84 | /**
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85 | * Port I/O Handler for IN operations.
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86 | *
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87 | * @returns VINF_SUCCESS or VINF_EM_*.
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88 | * @returns VERR_IOM_IOPORT_UNUSED if the port is really unused and a ~0 value should be returned.
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89 | *
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90 | * @param pDevIns The device instance.
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91 | * @param pvUser User argument.
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92 | * @param uPort Port number used for the IN operation.
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93 | * @param pu32 Where to store the result.
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94 | * @param cb Number of bytes read.
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95 | */
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96 | typedef DECLCALLBACK(int) FNIOMIOPORTIN(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb);
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97 | /** Pointer to a FNIOMIOPORTIN(). */
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98 | typedef FNIOMIOPORTIN *PFNIOMIOPORTIN;
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99 |
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100 | /**
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101 | * Port I/O Handler for string IN operations.
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102 | *
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103 | * @returns VINF_SUCCESS or VINF_EM_*.
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104 | * @returns VERR_IOM_IOPORT_UNUSED if the port is really unused and a ~0 value should be returned.
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105 | *
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106 | * @param pDevIns The device instance.
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107 | * @param pvUser User argument.
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108 | * @param uPort Port number used for the IN operation.
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109 | * @param pGCPtrDst Pointer to the destination buffer (GC, incremented appropriately).
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110 | * @param pcTransfers Pointer to the number of transfer units to read, on return remaining transfer units.
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111 | * @param cb Size of the transfer unit (1, 2 or 4 bytes).
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112 | */
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113 | typedef DECLCALLBACK(int) FNIOMIOPORTINSTRING(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb);
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114 | /** Pointer to a FNIOMIOPORTINSTRING(). */
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115 | typedef FNIOMIOPORTINSTRING *PFNIOMIOPORTINSTRING;
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116 |
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117 | /**
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118 | * Port I/O Handler for OUT operations.
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119 | *
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120 | * @returns VINF_SUCCESS or VINF_EM_*.
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121 | *
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122 | * @param pDevIns The device instance.
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123 | * @param pvUser User argument.
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124 | * @param uPort Port number used for the OUT operation.
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125 | * @param u32 The value to output.
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126 | * @param cb The value size in bytes.
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127 | */
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128 | typedef DECLCALLBACK(int) FNIOMIOPORTOUT(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb);
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129 | /** Pointer to a FNIOMIOPORTOUT(). */
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130 | typedef FNIOMIOPORTOUT *PFNIOMIOPORTOUT;
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131 |
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132 | /**
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133 | * Port I/O Handler for string OUT operations.
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134 | *
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135 | * @returns VINF_SUCCESS or VINF_EM_*.
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136 | *
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137 | * @param pDevIns The device instance.
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138 | * @param pvUser User argument.
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139 | * @param uPort Port number used for the OUT operation.
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140 | * @param pGCPtrSrc Pointer to the source buffer (GC, incremented appropriately).
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141 | * @param pcTransfers Pointer to the number of transfer units to write, on return remaining transfer units.
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142 | * @param cb Size of the transfer unit (1, 2 or 4 bytes).
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143 | */
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144 | typedef DECLCALLBACK(int) FNIOMIOPORTOUTSTRING(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, RTGCPTR *pGCPtrSrc, PRTGCUINTREG pcTransfers, unsigned cb);
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145 | /** Pointer to a FNIOMIOPORTOUTSTRING(). */
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146 | typedef FNIOMIOPORTOUTSTRING *PFNIOMIOPORTOUTSTRING;
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147 |
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148 |
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149 | /**
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150 | * Memory mapped I/O Handler for read operations.
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151 | *
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152 | * @returns VBox status code.
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153 | *
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154 | * @param pDevIns The device instance.
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155 | * @param pvUser User argument.
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156 | * @param GCPhysAddr Physical address (in GC) where the read starts.
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157 | * @param pv Where to store the result.
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158 | * @param cb Number of bytes read.
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159 | *
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160 | * @remark wonder if we could merge the IOMMMIO* and IOMPORT* callbacks...
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161 | */
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162 | typedef DECLCALLBACK(int) FNIOMMMIOREAD(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
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163 | /** Pointer to a FNIOMMMIOREAD(). */
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164 | typedef FNIOMMMIOREAD *PFNIOMMMIOREAD;
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165 |
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166 | /**
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167 | * Port I/O Handler for write operations.
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168 | *
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169 | * @returns VBox status code.
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170 | *
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171 | * @param pDevIns The device instance.
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172 | * @param pvUser User argument.
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173 | * @param GCPhysAddr Physical address (in GC) where the read starts.
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174 | * @param pv Where to fetch the result.
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175 | * @param cb Number of bytes to write.
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176 | *
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177 | * @remark wonder if we could merge the IOMMMIO* and IOMPORT* callbacks...
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178 | */
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179 | typedef DECLCALLBACK(int) FNIOMMMIOWRITE(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, void *pv, unsigned cb);
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180 | /** Pointer to a FNIOMMMIOWRITE(). */
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181 | typedef FNIOMMMIOWRITE *PFNIOMMMIOWRITE;
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182 |
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183 | /**
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184 | * Port I/O Handler for memset operations, actually for REP STOS* instructions handling.
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185 | *
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186 | * @returns VBox status code.
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187 | *
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188 | * @param pDevIns The device instance.
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189 | * @param pvUser User argument.
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190 | * @param GCPhysAddr Physical address (in GC) where the write starts.
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191 | * @param u32Item Byte/Word/Dword data to fill.
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192 | * @param cbItem Size of data in u32Item parameter, restricted to 1/2/4 bytes.
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193 | * @param cItems Number of iterations.
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194 | */
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195 | typedef DECLCALLBACK(int) FNIOMMMIOFILL(PPDMDEVINS pDevIns, void *pvUser, RTGCPHYS GCPhysAddr, uint32_t u32Item, unsigned cbItem, unsigned cItems);
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196 | /** Pointer to a FNIOMMMIOFILL(). */
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197 | typedef FNIOMMMIOFILL *PFNIOMMMIOFILL;
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198 |
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199 | VMMDECL(VBOXSTRICTRC) IOMIOPortRead(PVM pVM, RTIOPORT Port, uint32_t *pu32Value, size_t cbValue);
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200 | VMMDECL(VBOXSTRICTRC) IOMIOPortWrite(PVM pVM, RTIOPORT Port, uint32_t u32Value, size_t cbValue);
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201 | VMMDECL(VBOXSTRICTRC) IOMInterpretOUT(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
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202 | VMMDECL(VBOXSTRICTRC) IOMInterpretIN(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
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203 | VMMDECL(VBOXSTRICTRC) IOMIOPortReadString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb);
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204 | VMMDECL(VBOXSTRICTRC) IOMIOPortWriteString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrSrc, PRTGCUINTREG pcTransfers, unsigned cb);
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205 | VMMDECL(VBOXSTRICTRC) IOMInterpretINS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
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206 | VMMDECL(VBOXSTRICTRC) IOMInterpretINSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer);
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207 | VMMDECL(VBOXSTRICTRC) IOMInterpretOUTS(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
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208 | VMMDECL(VBOXSTRICTRC) IOMInterpretOUTSEx(PVM pVM, PCPUMCTXCORE pRegFrame, uint32_t uPort, uint32_t uPrefix, uint32_t cbTransfer);
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209 | VMMDECL(VBOXSTRICTRC) IOMMMIORead(PVM pVM, RTGCPHYS GCPhys, uint32_t *pu32Value, size_t cbValue);
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210 | VMMDECL(VBOXSTRICTRC) IOMMMIOWrite(PVM pVM, RTGCPHYS GCPhys, uint32_t u32Value, size_t cbValue);
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211 | VMMDECL(VBOXSTRICTRC) IOMMMIOPhysHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pCtxCore, RTGCPHYS GCPhysFault);
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212 | VMMDECL(VBOXSTRICTRC) IOMInterpretCheckPortIOAccess(PVM pVM, PCPUMCTXCORE pCtxCore, RTIOPORT Port, unsigned cb);
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213 | VMMDECL(int) IOMMMIOMapMMIO2Page(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysRemapped, uint64_t fPageFlags);
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214 | VMMDECL(int) IOMMMIOMapMMIOHCPage(PVM pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint64_t fPageFlags);
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215 | VMMDECL(int) IOMMMIOResetRegion(PVM pVM, RTGCPHYS GCPhys);
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216 | VMMDECL(bool) IOMIsLockOwner(PVM pVM);
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217 |
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218 | #ifdef IN_RC
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219 | /** @defgroup grp_iom_gc The IOM Guest Context API
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220 | * @ingroup grp_iom
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221 | * @{
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222 | */
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223 | VMMRCDECL(VBOXSTRICTRC) IOMGCIOPortHandler(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu);
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224 | /** @} */
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225 | #endif /* IN_RC */
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226 |
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227 |
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228 |
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229 | #ifdef IN_RING3
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230 | /** @defgroup grp_iom_r3 The IOM Host Context Ring-3 API
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231 | * @ingroup grp_iom
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232 | * @{
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233 | */
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234 | VMMR3DECL(int) IOMR3Init(PVM pVM);
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235 | VMMR3DECL(void) IOMR3Reset(PVM pVM);
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236 | VMMR3DECL(void) IOMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
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237 | VMMR3DECL(int) IOMR3Term(PVM pVM);
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238 | VMMR3DECL(int) IOMR3IOPortRegisterR3(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTHCPTR pvUser,
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239 | R3PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R3PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
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240 | R3PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStringCallback, R3PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStringCallback,
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241 | const char *pszDesc);
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242 | VMMR3DECL(int) IOMR3IOPortRegisterRC(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTRCPTR pvUser,
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243 | RCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, RCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
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244 | RCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, RCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
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245 | const char *pszDesc);
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246 | VMMR3DECL(int) IOMR3IOPortRegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTR0PTR pvUser,
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247 | R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
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248 | R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
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249 | const char *pszDesc);
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250 | VMMR3DECL(int) IOMR3IOPortDeregister(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts);
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251 |
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252 | VMMR3DECL(int) IOMR3MMIORegisterR3(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTHCPTR pvUser,
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253 | R3PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
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254 | R3PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
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255 | R3PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc);
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256 | VMMR3DECL(int) IOMR3MMIORegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTR0PTR pvUser,
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257 | R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
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258 | R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
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259 | R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback);
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260 | VMMR3DECL(int) IOMR3MMIORegisterRC(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTGCPTR pvUser,
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261 | RCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback,
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262 | RCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
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263 | RCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallback);
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264 | VMMR3DECL(int) IOMR3MMIODeregister(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange);
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265 |
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266 | VMMR3DECL(void) IOMR3ReleaseOwnedLocks(PVM pVM);
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267 | VMMR3DECL(PPDMCRITSECT) IOMR3GetCritSect(PVM pVM);
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268 |
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269 | /** @} */
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270 | #endif /* IN_RING3 */
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271 |
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272 |
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273 | /** @} */
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274 |
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275 | RT_C_DECLS_END
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276 |
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277 | #endif
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278 |
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