| 1 | /* $Id: IOMAll.cpp 4071 2007-08-07 17:07:59Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IOM - Input / Output Monitor - Any Context.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 innotek GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | /*******************************************************************************
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| 19 | * Header Files *
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| 20 | *******************************************************************************/
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| 21 | #define LOG_GROUP LOG_GROUP_IOM
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| 22 | #include <VBox/iom.h>
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| 23 | #include <VBox/mm.h>
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| 24 | #include <VBox/param.h>
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| 25 | #include "IOMInternal.h"
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| 26 | #include <VBox/vm.h>
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| 27 | #include <VBox/selm.h>
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| 28 | #include <VBox/trpm.h>
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| 29 | #include <VBox/pgm.h>
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| 30 | #include <VBox/cpum.h>
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| 31 | #include <VBox/err.h>
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| 32 | #include <VBox/log.h>
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| 33 | #include <iprt/assert.h>
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| 34 |
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| 35 |
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| 36 | /*******************************************************************************
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| 37 | * Global Variables *
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| 38 | *******************************************************************************/
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| 39 |
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| 40 | /**
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| 41 | * Array for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
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| 42 | */
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| 43 | static const unsigned g_aSize2Shift[] =
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| 44 | {
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| 45 | ~0, /* 0 - invalid */
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| 46 | 0, /* *1 == 2^0 */
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| 47 | 1, /* *2 == 2^1 */
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| 48 | ~0, /* 3 - invalid */
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| 49 | 2, /* *4 == 2^2 */
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| 50 | ~0, /* 5 - invalid */
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| 51 | ~0, /* 6 - invalid */
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| 52 | ~0, /* 7 - invalid */
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| 53 | 3 /* *8 == 2^3 */
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| 54 | };
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| 55 |
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| 56 | /**
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| 57 | * Macro for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
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| 58 | */
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| 59 | #define SIZE2SHIFT(cb) (g_aSize2Shift[cb])
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| 60 |
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| 61 | /**
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| 62 | * Calculates the size of register parameter.
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| 63 | *
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| 64 | * @returns 1, 2, 4 on success.
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| 65 | * @returns 0 if non-register parameter.
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| 66 | * @param pCpu Pointer to current disassembler context.
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| 67 | * @param pParam Pointer to parameter of instruction to proccess.
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| 68 | */
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| 69 | static unsigned iomGCGetRegSize(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam)
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| 70 | {
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| 71 | if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32 | USE_IMMEDIATE8 | USE_IMMEDIATE16 | USE_IMMEDIATE32 | USE_IMMEDIATE16_SX8 | USE_IMMEDIATE32_SX8))
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| 72 | return 0;
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| 73 |
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| 74 | if (pParam->flags & USE_REG_GEN32)
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| 75 | return 4;
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| 76 |
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| 77 | if (pParam->flags & USE_REG_GEN16)
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| 78 | return 2;
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| 79 |
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| 80 | if (pParam->flags & USE_REG_GEN8)
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| 81 | return 1;
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| 82 |
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| 83 | if (pParam->flags & USE_REG_SEG)
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| 84 | return 2;
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| 85 | return 0;
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| 86 | }
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| 87 |
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| 88 | /**
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| 89 | * Returns the contents of register or immediate data of instruction's parameter.
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| 90 | *
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| 91 | * @returns true on success.
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| 92 | *
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| 93 | * @param pCpu Pointer to current disassembler context.
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| 94 | * @param pParam Pointer to parameter of instruction to proccess.
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| 95 | * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
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| 96 | * @param pu32Data Where to store retrieved data.
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| 97 | * @param pcbSize Where to store the size of data (1, 2, 4).
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| 98 | */
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| 99 | static bool iomGCGetRegImmData(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint32_t *pu32Data, unsigned *pcbSize)
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| 100 | {
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| 101 | if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32))
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| 102 | {
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| 103 | *pcbSize = 0;
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| 104 | *pu32Data = 0;
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| 105 | return false;
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| 106 | }
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| 107 |
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| 108 | if (pParam->flags & USE_REG_GEN32)
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| 109 | {
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| 110 | *pcbSize = 4;
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| 111 | DISFetchReg32(pRegFrame, pParam->base.reg_gen32, pu32Data);
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| 112 | return true;
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| 113 | }
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| 114 |
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| 115 | if (pParam->flags & USE_REG_GEN16)
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| 116 | {
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| 117 | *pcbSize = 2;
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| 118 | DISFetchReg16(pRegFrame, pParam->base.reg_gen16, (uint16_t *)pu32Data);
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| 119 | return true;
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| 120 | }
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| 121 |
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| 122 | if (pParam->flags & USE_REG_GEN8)
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| 123 | {
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| 124 | *pcbSize = 1;
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| 125 | DISFetchReg8(pRegFrame, pParam->base.reg_gen8, (uint8_t *)pu32Data);
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| 126 | return true;
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| 127 | }
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| 128 |
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| 129 | if (pParam->flags & (USE_IMMEDIATE32|USE_IMMEDIATE32_SX8))
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| 130 | {
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| 131 | *pcbSize = 4;
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| 132 | *pu32Data = (uint32_t)pParam->parval;
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| 133 | return true;
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| 134 | }
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| 135 |
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| 136 | if (pParam->flags & (USE_IMMEDIATE16|USE_IMMEDIATE16_SX8))
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| 137 | {
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| 138 | *pcbSize = 2;
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| 139 | *pu32Data = (uint16_t)pParam->parval;
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| 140 | return true;
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| 141 | }
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| 142 |
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| 143 | if (pParam->flags & USE_IMMEDIATE8)
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| 144 | {
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| 145 | *pcbSize = 1;
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| 146 | *pu32Data = (uint8_t)pParam->parval;
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| 147 | return true;
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| 148 | }
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| 149 |
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| 150 | if (pParam->flags & USE_REG_SEG)
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| 151 | {
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| 152 | *pcbSize = 2;
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| 153 | DISFetchRegSeg(pRegFrame, pParam->base.reg_seg, (RTSEL *)pu32Data);
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| 154 | return true;
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| 155 | } /* Else - error. */
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| 156 |
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| 157 | *pcbSize = 0;
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| 158 | *pu32Data = 0;
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| 159 | return false;
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| 160 | }
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| 161 |
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| 162 |
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| 163 | /**
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| 164 | * Saves data to 8/16/32 general purpose or segment register defined by
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| 165 | * instruction's parameter.
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| 166 | *
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| 167 | * @returns true on success.
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| 168 | * @param pCpu Pointer to current disassembler context.
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| 169 | * @param pParam Pointer to parameter of instruction to proccess.
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| 170 | * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
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| 171 | * @param u32Data 8/16/32 bit data to store.
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| 172 | */
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| 173 | static bool iomGCSaveDataToReg(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, unsigned u32Data)
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| 174 | {
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| 175 | if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32 | USE_IMMEDIATE8 | USE_IMMEDIATE16 | USE_IMMEDIATE32 | USE_IMMEDIATE32_SX8 | USE_IMMEDIATE16_SX8))
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| 176 | {
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| 177 | return false;
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| 178 | }
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| 179 |
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| 180 | if (pParam->flags & USE_REG_GEN32)
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| 181 | {
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| 182 | DISWriteReg32(pRegFrame, pParam->base.reg_gen32, u32Data);
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| 183 | return true;
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| 184 | }
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| 185 |
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| 186 | if (pParam->flags & USE_REG_GEN16)
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| 187 | {
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| 188 | DISWriteReg16(pRegFrame, pParam->base.reg_gen16, (uint16_t)u32Data);
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| 189 | return true;
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| 190 | }
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| 191 |
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| 192 | if (pParam->flags & USE_REG_GEN8)
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| 193 | {
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| 194 | DISWriteReg8(pRegFrame, pParam->base.reg_gen8, (uint8_t)u32Data);
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| 195 | return true;
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| 196 | }
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| 197 |
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| 198 | if (pParam->flags & USE_REG_SEG)
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| 199 | {
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| 200 | DISWriteRegSeg(pRegFrame, pParam->base.reg_seg, (RTSEL)u32Data);
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| 201 | return true;
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| 202 | }
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| 203 |
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| 204 | /* Else - error. */
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| 205 | return false;
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| 206 | }
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| 207 |
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| 208 | /*
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| 209 | * Internal - statistics only.
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| 210 | */
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| 211 | inline void iomGCMMIOStatLength(PVM pVM, unsigned cb)
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| 212 | {
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| 213 | #ifdef VBOX_WITH_STATISTICS
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| 214 | switch (cb)
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| 215 | {
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| 216 | case 1:
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| 217 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO1Byte);
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| 218 | break;
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| 219 | case 2:
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| 220 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO2Bytes);
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| 221 | break;
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| 222 | case 4:
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| 223 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO4Bytes);
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| 224 | break;
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| 225 | default:
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| 226 | /* No way. */
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| 227 | AssertMsgFailed(("Invalid data length %d\n", cb));
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| 228 | break;
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| 229 | }
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| 230 | #else
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| 231 | NOREF(pVM); NOREF(cb);
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| 232 | #endif
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| 233 | }
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| 234 |
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| 235 | /**
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| 236 | * Registers a Port IO GC handler.
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| 237 | *
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| 238 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
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| 239 | * using IOMIOPortRegisterR3() before calling this function.
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| 240 | *
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| 241 | *
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| 242 | * @returns VBox status code.
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| 243 | *
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| 244 | * @param pVM VM handle.
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| 245 | * @param pDevIns PDM device instance owning the port range.
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| 246 | * @param PortStart First port number in the range.
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| 247 | * @param cPorts Number of ports to register.
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| 248 | * @param pvUser User argument for the callbacks.
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| 249 | * @param pfnOutCallback Pointer to function which is gonna handle OUT operations in GC.
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| 250 | * @param pfnInCallback Pointer to function which is gonna handle IN operations in GC.
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| 251 | * @param pfnOutStrCallback Pointer to function which is gonna handle string OUT operations in GC.
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| 252 | * @param pfnInStrCallback Pointer to function which is gonna handle string IN operations in GC.
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| 253 | * @param pszDesc Pointer to description string. This must not be freed.
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| 254 | */
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| 255 | IOMDECL(int) IOMIOPortRegisterGC(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTGCPTR pvUser,
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| 256 | GCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, GCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
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| 257 | GCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, GCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback, const char *pszDesc)
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| 258 | {
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| 259 | LogFlow(("IOMIOPortRegisterGC: pDevIns=%p PortStart=%#x cPorts=%#x pvUser=%VGv pfnOutCallback=%VGv pfnInCallback=%VGv pfnOutStrCallback=%VGv pfnInStrCallback=%VGv pszDesc=%s\n",
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| 260 | pDevIns, PortStart, cPorts, pvUser, pfnOutCallback, pfnInCallback, pfnOutStrCallback, pfnInStrCallback, pszDesc));
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| 261 |
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| 262 | /*
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| 263 | * Validate input.
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| 264 | */
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| 265 | if ( (RTUINT)PortStart + cPorts <= (RTUINT)PortStart
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| 266 | || (RTUINT)PortStart + cPorts > 0x10000)
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| 267 | {
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| 268 | AssertMsgFailed(("Invalid port range %#x-%#x! (%s)\n", PortStart, (RTUINT)PortStart + (cPorts - 1), pszDesc));
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| 269 | return VERR_IOM_INVALID_IOPORT_RANGE;
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| 270 | }
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| 271 | RTIOPORT PortLast = PortStart + (cPorts - 1);
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| 272 | if (!pfnOutCallback && !pfnInCallback)
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| 273 | {
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| 274 | AssertMsgFailed(("Invalid port range %#x-%#x! No callbacks! (%s)\n", PortStart, PortLast, pszDesc));
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| 275 | return VERR_INVALID_PARAMETER;
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| 276 | }
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| 277 |
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| 278 | /*
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| 279 | * Validate that there are ring-3 ranges for the ports.
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| 280 | */
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| 281 | RTIOPORT Port = PortStart;
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| 282 | while (Port <= PortLast && Port >= PortStart)
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| 283 | {
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| 284 | PIOMIOPORTRANGER3 pRange = (PIOMIOPORTRANGER3)RTAvlroIOPortRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR3, Port);
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| 285 | if (!pRange)
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| 286 | {
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| 287 | AssertMsgFailed(("No R3! Port=#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 288 | return VERR_IOM_NO_HC_IOPORT_RANGE;
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| 289 | }
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| 290 | #ifndef IOM_NO_PDMINS_CHECKS
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| 291 | #ifndef IN_GC
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| 292 | if (pRange->pDevIns != pDevIns)
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| 293 | #else
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| 294 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
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| 295 | #endif
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| 296 | {
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| 297 | AssertMsgFailed(("Not owner! Port=%#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 298 | return VERR_IOM_NOT_IOPORT_RANGE_OWNER;
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| 299 | }
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| 300 | #endif
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| 301 | Port = pRange->Core.KeyLast + 1;
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| 302 | }
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| 303 |
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| 304 | /* Flush the IO port lookup cache */
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| 305 | IOMFlushCache(pVM);
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| 306 |
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| 307 | /*
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| 308 | * Allocate new range record and initialize it.
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| 309 | */
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| 310 | PIOMIOPORTRANGEGC pRange;
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| 311 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
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| 312 | if (VBOX_SUCCESS(rc))
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| 313 | {
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| 314 | pRange->Core.Key = PortStart;
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| 315 | pRange->Core.KeyLast = PortLast;
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| 316 | pRange->Port = PortStart;
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| 317 | pRange->cPorts = cPorts;
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| 318 | pRange->pvUser = pvUser;
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| 319 | pRange->pfnOutCallback = pfnOutCallback;
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| 320 | pRange->pfnInCallback = pfnInCallback;
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| 321 | pRange->pfnOutStrCallback = pfnOutStrCallback;
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| 322 | pRange->pfnInStrCallback = pfnInStrCallback;
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| 323 | #ifdef IN_GC
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| 324 | pRange->pDevIns = pDevIns;
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| 325 | pRange->pszDesc = MMHyperGC2HC(pVM, (void *)pszDesc);
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| 326 | #else
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| 327 | pRange->pDevIns = MMHyperHC2GC(pVM, pDevIns);
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| 328 | pRange->pszDesc = pszDesc;
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| 329 | #endif
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| 330 |
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| 331 | /*
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| 332 | * Insert it.
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| 333 | */
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| 334 | if (RTAvlroIOPortInsert(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeGC, &pRange->Core))
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| 335 | return VINF_SUCCESS;
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| 336 |
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| 337 | /* conflict. */
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| 338 | AssertMsgFailed(("Port range %#x-%#x (%s) conflicts with existing range(s)!\n", PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 339 | MMHyperFree(pVM, pRange);
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| 340 | rc = VERR_IOM_IOPORT_RANGE_CONFLICT;
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| 341 | }
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| 342 |
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| 343 | return rc;
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| 344 | }
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| 345 |
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| 346 |
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| 347 | /**
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| 348 | * Registers a Memory Mapped I/O GC handler range.
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| 349 | *
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| 350 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
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| 351 | * using IOMMMIORegisterR3() before calling this function.
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| 352 | *
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| 353 | *
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| 354 | * @returns VBox status code.
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| 355 | *
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| 356 | * @param pVM VM handle.
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| 357 | * @param pDevIns PDM device instance owning the MMIO range.
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| 358 | * @param GCPhysStart First physical address in the range.
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| 359 | * @param cbRange The size of the range (in bytes).
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| 360 | * @param pvUser User argument for the callbacks.
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| 361 | * @param pfnWriteCallback Pointer to function which is gonna handle Write operations.
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| 362 | * @param pfnReadCallback Pointer to function which is gonna handle Read operations.
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| 363 | * @param pfnFillCallback Pointer to function which is gonna handle Fill/memset operations.
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| 364 | * @param pszDesc Pointer to description string. This must not be freed.
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| 365 | */
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| 366 | IOMDECL(int) IOMMMIORegisterGC(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTGCPTR pvUser,
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| 367 | GCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback, GCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
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| 368 | GCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc)
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| 369 | {
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| 370 | LogFlow(("IOMMMIORegisterGC: pDevIns=%p GCPhysStart=%#x cbRange=%#x pvUser=%VGv pfnWriteCallback=%#x pfnReadCallback=%#x pfnFillCallback=%#x pszDesc=%s\n",
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| 371 | pDevIns, GCPhysStart, cbRange, pvUser, pfnWriteCallback, pfnReadCallback, pfnFillCallback, pszDesc));
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| 372 |
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| 373 | /*
|
|---|
| 374 | * Validate input.
|
|---|
| 375 | */
|
|---|
| 376 | if (!pfnWriteCallback && !pfnReadCallback)
|
|---|
| 377 | {
|
|---|
| 378 | AssertMsgFailed(("No callbacks! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 379 | return VERR_INVALID_PARAMETER;
|
|---|
| 380 | }
|
|---|
| 381 | RTGCPHYS GCPhysLast = GCPhysStart + (cbRange - 1);
|
|---|
| 382 | if (GCPhysLast < GCPhysStart)
|
|---|
| 383 | {
|
|---|
| 384 | AssertMsgFailed(("Wrapped! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 385 | return VERR_IOM_INVALID_MMIO_RANGE;
|
|---|
| 386 | }
|
|---|
| 387 |
|
|---|
| 388 | /*
|
|---|
| 389 | * Check that a ring-3 MMIO range exists.
|
|---|
| 390 | */
|
|---|
| 391 | RTGCPHYS GCPhys = GCPhysStart;
|
|---|
| 392 | while (GCPhys <= GCPhysLast && GCPhys >= GCPhysStart)
|
|---|
| 393 | {
|
|---|
| 394 | PIOMMMIORANGER3 pRange = (PIOMMMIORANGER3)RTAvlroGCPhysRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR3, GCPhys);
|
|---|
| 395 | if (!pRange)
|
|---|
| 396 | {
|
|---|
| 397 | AssertMsgFailed(("No R3 range! GCPhys=%#x %#x LB%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc));
|
|---|
| 398 | return VERR_IOM_NO_HC_MMIO_RANGE;
|
|---|
| 399 | }
|
|---|
| 400 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 401 | #ifndef IN_GC
|
|---|
| 402 | if (pRange->pDevIns != pDevIns)
|
|---|
| 403 | #else
|
|---|
| 404 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 405 | #endif
|
|---|
| 406 | {
|
|---|
| 407 | AssertMsgFailed(("Not owner! GCPhys=%#x %#x LB%#x %s / %#x-%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc,
|
|---|
| 408 | pRange->Core.Key, pRange->Core.KeyLast, MMHyper2HC(pVM, (uintptr_t)pRange->pszDesc)));
|
|---|
| 409 | return VERR_IOM_NOT_MMIO_RANGE_OWNER;
|
|---|
| 410 | }
|
|---|
| 411 | #endif /* !IOM_NO_PDMINS_CHECKS */
|
|---|
| 412 | /* next */
|
|---|
| 413 | Assert(GCPhys <= pRange->Core.KeyLast);
|
|---|
| 414 | GCPhys = pRange->Core.KeyLast + 1;
|
|---|
| 415 | }
|
|---|
| 416 |
|
|---|
| 417 |
|
|---|
| 418 | /*
|
|---|
| 419 | * Allocate new range record and initialize it.
|
|---|
| 420 | */
|
|---|
| 421 | PIOMMMIORANGEGC pRange;
|
|---|
| 422 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 423 | if (VBOX_SUCCESS(rc))
|
|---|
| 424 | {
|
|---|
| 425 | pRange->Core.Key = GCPhysStart;
|
|---|
| 426 | pRange->Core.KeyLast = GCPhysStart + (cbRange - 1);
|
|---|
| 427 | pRange->GCPhys = GCPhysStart;
|
|---|
| 428 | pRange->cbSize = cbRange;
|
|---|
| 429 | pRange->pvUser = pvUser;
|
|---|
| 430 | pRange->pfnReadCallback = pfnReadCallback;
|
|---|
| 431 | pRange->pfnWriteCallback= pfnWriteCallback;
|
|---|
| 432 | pRange->pfnFillCallback = pfnFillCallback;
|
|---|
| 433 | #ifdef IN_GC
|
|---|
| 434 | pRange->pDevIns = pDevIns;
|
|---|
| 435 | pRange->pszDesc = MMHyperGC2HC(pVM, (void *)pszDesc);
|
|---|
| 436 | #else
|
|---|
| 437 | pRange->pDevIns = MMHyperHC2GC(pVM, pDevIns);
|
|---|
| 438 | pRange->pszDesc = pszDesc;
|
|---|
| 439 | #endif
|
|---|
| 440 |
|
|---|
| 441 | /*
|
|---|
| 442 | * Try insert it.
|
|---|
| 443 | */
|
|---|
| 444 | if (RTAvlroGCPhysInsert(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeGC, &pRange->Core))
|
|---|
| 445 | return VINF_SUCCESS;
|
|---|
| 446 |
|
|---|
| 447 | AssertMsgFailed(("Conflict! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 448 | MMHyperFree(pVM, pRange);
|
|---|
| 449 | rc = VERR_IOM_MMIO_RANGE_CONFLICT;
|
|---|
| 450 | }
|
|---|
| 451 |
|
|---|
| 452 | return rc;
|
|---|
| 453 | }
|
|---|
| 454 |
|
|---|
| 455 |
|
|---|
| 456 | /**
|
|---|
| 457 | * Registers a Port IO R0 handler.
|
|---|
| 458 | *
|
|---|
| 459 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
|
|---|
| 460 | * using IOMR3IOPortRegisterR3() before calling this function.
|
|---|
| 461 | *
|
|---|
| 462 | *
|
|---|
| 463 | * @returns VBox status code.
|
|---|
| 464 | *
|
|---|
| 465 | * @param pVM VM handle.
|
|---|
| 466 | * @param pDevIns PDM device instance owning the port range.
|
|---|
| 467 | * @param PortStart First port number in the range.
|
|---|
| 468 | * @param cPorts Number of ports to register.
|
|---|
| 469 | * @param pvUser User argument for the callbacks.
|
|---|
| 470 | * @param pfnOutCallback Pointer to function which is gonna handle OUT operations in GC.
|
|---|
| 471 | * @param pfnInCallback Pointer to function which is gonna handle IN operations in GC.
|
|---|
| 472 | * @param pfnOutStrCallback Pointer to function which is gonna handle OUT operations in GC.
|
|---|
| 473 | * @param pfnInStrCallback Pointer to function which is gonna handle IN operations in GC.
|
|---|
| 474 | * @param pszDesc Pointer to description string. This must not be freed.
|
|---|
| 475 | */
|
|---|
| 476 | IOMDECL(int) IOMIOPortRegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTR0PTR pvUser,
|
|---|
| 477 | R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
|
|---|
| 478 | R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
|
|---|
| 479 | const char *pszDesc)
|
|---|
| 480 | {
|
|---|
| 481 | LogFlow(("IOMIOPortRegisterR0: pDevIns=%p PortStart=%#x cPorts=%#x pvUser=%VHv pfnOutCallback=%VGv pfnInCallback=%VGv pfnOutStrCallback=%VGv pfnInStrCallback=%VGv pszDesc=%s\n",
|
|---|
| 482 | pDevIns, PortStart, cPorts, pvUser, pfnOutCallback, pfnInCallback, pfnOutStrCallback, pfnInStrCallback, pszDesc));
|
|---|
| 483 |
|
|---|
| 484 | /*
|
|---|
| 485 | * Validate input.
|
|---|
| 486 | */
|
|---|
| 487 | if ( (RTUINT)PortStart + cPorts <= (RTUINT)PortStart
|
|---|
| 488 | || (RTUINT)PortStart + cPorts > 0x10000)
|
|---|
| 489 | {
|
|---|
| 490 | AssertMsgFailed(("Invalid port range %#x-%#x! (%s)\n", PortStart, (RTUINT)PortStart + (cPorts - 1), pszDesc));
|
|---|
| 491 | return VERR_IOM_INVALID_IOPORT_RANGE;
|
|---|
| 492 | }
|
|---|
| 493 | RTIOPORT PortLast = PortStart + (cPorts - 1);
|
|---|
| 494 | if (!pfnOutCallback && !pfnInCallback)
|
|---|
| 495 | {
|
|---|
| 496 | AssertMsgFailed(("Invalid port range %#x-%#x! No callbacks! (%s)\n", PortStart, PortLast, pszDesc));
|
|---|
| 497 | return VERR_INVALID_PARAMETER;
|
|---|
| 498 | }
|
|---|
| 499 |
|
|---|
| 500 | /*
|
|---|
| 501 | * Validate that there are ring-3 ranges for the ports.
|
|---|
| 502 | */
|
|---|
| 503 | RTIOPORT Port = PortStart;
|
|---|
| 504 | while (Port <= PortLast && Port >= PortStart)
|
|---|
| 505 | {
|
|---|
| 506 | PIOMIOPORTRANGER3 pRange = (PIOMIOPORTRANGER3)RTAvlroIOPortRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR3, Port);
|
|---|
| 507 | if (!pRange)
|
|---|
| 508 | {
|
|---|
| 509 | AssertMsgFailed(("No R3! Port=#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 510 | return VERR_IOM_NO_HC_IOPORT_RANGE;
|
|---|
| 511 | }
|
|---|
| 512 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 513 | # ifndef IN_GC
|
|---|
| 514 | if (pRange->pDevIns != pDevIns)
|
|---|
| 515 | # else
|
|---|
| 516 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 517 | # endif
|
|---|
| 518 | {
|
|---|
| 519 | AssertMsgFailed(("Not owner! Port=%#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 520 | return VERR_IOM_NOT_IOPORT_RANGE_OWNER;
|
|---|
| 521 | }
|
|---|
| 522 | #endif
|
|---|
| 523 | Port = pRange->Core.KeyLast + 1;
|
|---|
| 524 | }
|
|---|
| 525 |
|
|---|
| 526 | /* Flush the IO port lookup cache */
|
|---|
| 527 | IOMFlushCache(pVM);
|
|---|
| 528 |
|
|---|
| 529 | /*
|
|---|
| 530 | * Allocate new range record and initialize it.
|
|---|
| 531 | */
|
|---|
| 532 | PIOMIOPORTRANGER0 pRange;
|
|---|
| 533 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 534 | if (VBOX_SUCCESS(rc))
|
|---|
| 535 | {
|
|---|
| 536 | pRange->Core.Key = PortStart;
|
|---|
| 537 | pRange->Core.KeyLast = PortLast;
|
|---|
| 538 | pRange->Port = PortStart;
|
|---|
| 539 | pRange->cPorts = cPorts;
|
|---|
| 540 | pRange->pvUser = pvUser;
|
|---|
| 541 | pRange->pfnOutCallback = pfnOutCallback;
|
|---|
| 542 | pRange->pfnInCallback = pfnInCallback;
|
|---|
| 543 | pRange->pfnOutStrCallback = pfnOutStrCallback;
|
|---|
| 544 | pRange->pfnInStrCallback = pfnInStrCallback;
|
|---|
| 545 | #ifdef IN_GC
|
|---|
| 546 | pRange->pDevIns = MMHyperGCToR0(pVM, pDevIns);
|
|---|
| 547 | pRange->pszDesc = MMHyperGCToR3(pVM, (void *)pszDesc);
|
|---|
| 548 | #elif defined(IN_RING3)
|
|---|
| 549 | pRange->pDevIns = MMHyperR3ToR0(pVM, pDevIns);
|
|---|
| 550 | pRange->pszDesc = pszDesc;
|
|---|
| 551 | #else
|
|---|
| 552 | pRange->pDevIns = pDevIns;
|
|---|
| 553 | pRange->pszDesc = MMHyperR0ToR3(pVM, (RTR0PTR)pszDesc);
|
|---|
| 554 | #endif
|
|---|
| 555 |
|
|---|
| 556 | /*
|
|---|
| 557 | * Insert it.
|
|---|
| 558 | */
|
|---|
| 559 | if (RTAvlroIOPortInsert(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR0, &pRange->Core))
|
|---|
| 560 | return VINF_SUCCESS;
|
|---|
| 561 |
|
|---|
| 562 | /* conflict. */
|
|---|
| 563 | AssertMsgFailed(("Port range %#x-%#x (%s) conflicts with existing range(s)!\n", PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 564 | MMHyperFree(pVM, pRange);
|
|---|
| 565 | rc = VERR_IOM_IOPORT_RANGE_CONFLICT;
|
|---|
| 566 | }
|
|---|
| 567 |
|
|---|
| 568 | return rc;
|
|---|
| 569 | }
|
|---|
| 570 |
|
|---|
| 571 |
|
|---|
| 572 | /**
|
|---|
| 573 | * Registers a Memory Mapped I/O R0 handler range.
|
|---|
| 574 | *
|
|---|
| 575 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
|
|---|
| 576 | * using IOMMR3MIORegisterHC() before calling this function.
|
|---|
| 577 | *
|
|---|
| 578 | *
|
|---|
| 579 | * @returns VBox status code.
|
|---|
| 580 | *
|
|---|
| 581 | * @param pVM VM handle.
|
|---|
| 582 | * @param pDevIns PDM device instance owning the MMIO range.
|
|---|
| 583 | * @param GCPhysStart First physical address in the range.
|
|---|
| 584 | * @param cbRange The size of the range (in bytes).
|
|---|
| 585 | * @param pvUser User argument for the callbacks.
|
|---|
| 586 | * @param pfnWriteCallback Pointer to function which is gonna handle Write operations.
|
|---|
| 587 | * @param pfnReadCallback Pointer to function which is gonna handle Read operations.
|
|---|
| 588 | * @param pfnFillCallback Pointer to function which is gonna handle Fill/memset operations.
|
|---|
| 589 | * @param pszDesc Pointer to description string. This must not be freed.
|
|---|
| 590 | */
|
|---|
| 591 | IOMDECL(int) IOMMMIORegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTR0PTR pvUser,
|
|---|
| 592 | R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback, R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
|
|---|
| 593 | R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc)
|
|---|
| 594 | {
|
|---|
| 595 | LogFlow(("IOMMMIORegisterR0: pDevIns=%p GCPhysStart=%#x cbRange=%#x pvUser=%VHv pfnWriteCallback=%#x pfnReadCallback=%#x pfnFillCallback=%#x pszDesc=%s\n",
|
|---|
| 596 | pDevIns, GCPhysStart, cbRange, pvUser, pfnWriteCallback, pfnReadCallback, pfnFillCallback, pszDesc));
|
|---|
| 597 |
|
|---|
| 598 | /*
|
|---|
| 599 | * Validate input.
|
|---|
| 600 | */
|
|---|
| 601 | if (!pfnWriteCallback && !pfnReadCallback)
|
|---|
| 602 | {
|
|---|
| 603 | AssertMsgFailed(("No callbacks! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 604 | return VERR_INVALID_PARAMETER;
|
|---|
| 605 | }
|
|---|
| 606 | RTGCPHYS GCPhysLast = GCPhysStart + (cbRange - 1);
|
|---|
| 607 | if (GCPhysLast < GCPhysStart)
|
|---|
| 608 | {
|
|---|
| 609 | AssertMsgFailed(("Wrapped! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 610 | return VERR_IOM_INVALID_MMIO_RANGE;
|
|---|
| 611 | }
|
|---|
| 612 |
|
|---|
| 613 | /*
|
|---|
| 614 | * Check that a ring-3 MMIO range exists.
|
|---|
| 615 | */
|
|---|
| 616 | RTGCPHYS GCPhys = GCPhysStart;
|
|---|
| 617 | while (GCPhys <= GCPhysLast && GCPhys >= GCPhysStart)
|
|---|
| 618 | {
|
|---|
| 619 | PIOMMMIORANGER3 pRange = (PIOMMMIORANGER3)RTAvlroGCPhysRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR3, GCPhys);
|
|---|
| 620 | if (!pRange)
|
|---|
| 621 | {
|
|---|
| 622 | AssertMsgFailed(("No R3 range! GCPhys=%#x %#x LB%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc));
|
|---|
| 623 | return VERR_IOM_NO_HC_MMIO_RANGE;
|
|---|
| 624 | }
|
|---|
| 625 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 626 | # ifndef IN_GC
|
|---|
| 627 | if (pRange->pDevIns != pDevIns)
|
|---|
| 628 | # else
|
|---|
| 629 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 630 | # endif
|
|---|
| 631 | {
|
|---|
| 632 | AssertMsgFailed(("Not owner! GCPhys=%#x %#x LB%#x %s / %#x-%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc,
|
|---|
| 633 | pRange->Core.Key, pRange->Core.KeyLast, MMHyper2HC(pVM, (uintptr_t)pRange->pszDesc)));
|
|---|
| 634 | return VERR_IOM_NOT_MMIO_RANGE_OWNER;
|
|---|
| 635 | }
|
|---|
| 636 | #endif /* !IOM_NO_PDMINS_CHECKS */
|
|---|
| 637 | /* next */
|
|---|
| 638 | Assert(GCPhys <= pRange->Core.KeyLast);
|
|---|
| 639 | GCPhys = pRange->Core.KeyLast + 1;
|
|---|
| 640 | }
|
|---|
| 641 |
|
|---|
| 642 |
|
|---|
| 643 | /*
|
|---|
| 644 | * Allocate new range record and initialize it.
|
|---|
| 645 | */
|
|---|
| 646 | PIOMMMIORANGER0 pRange;
|
|---|
| 647 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 648 | if (VBOX_SUCCESS(rc))
|
|---|
| 649 | {
|
|---|
| 650 | pRange->Core.Key = GCPhysStart;
|
|---|
| 651 | pRange->Core.KeyLast = GCPhysStart + (cbRange - 1);
|
|---|
| 652 | pRange->GCPhys = GCPhysStart;
|
|---|
| 653 | pRange->cbSize = cbRange;
|
|---|
| 654 | pRange->pvUser = pvUser;
|
|---|
| 655 | pRange->pfnReadCallback = pfnReadCallback;
|
|---|
| 656 | pRange->pfnWriteCallback= pfnWriteCallback;
|
|---|
| 657 | pRange->pfnFillCallback = pfnFillCallback;
|
|---|
| 658 | #ifdef IN_GC
|
|---|
| 659 | pRange->pDevIns = MMHyperGCToR0(pVM, pDevIns);
|
|---|
| 660 | pRange->pszDesc = MMHyperGCToR3(pVM, (void *)pszDesc);
|
|---|
| 661 | #elif defined(IN_RING3)
|
|---|
| 662 | pRange->pDevIns = MMHyperR3ToR0(pVM, pDevIns);
|
|---|
| 663 | pRange->pszDesc = pszDesc;
|
|---|
| 664 | #else
|
|---|
| 665 | pRange->pDevIns = pDevIns;
|
|---|
| 666 | pRange->pszDesc = MMHyperR0ToR3(pVM, (RTR0PTR)pszDesc);
|
|---|
| 667 | #endif
|
|---|
| 668 |
|
|---|
| 669 | /*
|
|---|
| 670 | * Try insert it.
|
|---|
| 671 | */
|
|---|
| 672 | if (RTAvlroGCPhysInsert(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR0, &pRange->Core))
|
|---|
| 673 | return VINF_SUCCESS;
|
|---|
| 674 |
|
|---|
| 675 | AssertMsgFailed(("Conflict! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 676 | MMHyperFree(pVM, pRange);
|
|---|
| 677 | rc = VERR_IOM_MMIO_RANGE_CONFLICT;
|
|---|
| 678 | }
|
|---|
| 679 |
|
|---|
| 680 | return rc;
|
|---|
| 681 | }
|
|---|
| 682 |
|
|---|
| 683 |
|
|---|
| 684 | /**
|
|---|
| 685 | * Flushes the IOM port & statistics lookup cache
|
|---|
| 686 | *
|
|---|
| 687 | * @param pVM The VM.
|
|---|
| 688 | */
|
|---|
| 689 | IOMDECL(void) IOMFlushCache(PVM pVM)
|
|---|
| 690 | {
|
|---|
| 691 | /*
|
|---|
| 692 | * Caching of port and statistics (saves some time in rep outs/ins instruction emulation)
|
|---|
| 693 | */
|
|---|
| 694 | pVM->iom.s.pRangeLastReadGC = 0;
|
|---|
| 695 | pVM->iom.s.pRangeLastWriteGC = 0;
|
|---|
| 696 | pVM->iom.s.pStatsLastReadGC = 0;
|
|---|
| 697 | pVM->iom.s.pStatsLastWriteGC = 0;
|
|---|
| 698 |
|
|---|
| 699 | pVM->iom.s.pRangeLastReadR3 = 0;
|
|---|
| 700 | pVM->iom.s.pRangeLastWriteR3 = 0;
|
|---|
| 701 | pVM->iom.s.pStatsLastReadR3 = 0;
|
|---|
| 702 | pVM->iom.s.pStatsLastWriteR3 = 0;
|
|---|
| 703 |
|
|---|
| 704 | pVM->iom.s.pRangeLastReadR0 = 0;
|
|---|
| 705 | pVM->iom.s.pRangeLastWriteR0 = 0;
|
|---|
| 706 | pVM->iom.s.pStatsLastReadR0 = 0;
|
|---|
| 707 | pVM->iom.s.pStatsLastWriteR0 = 0;
|
|---|
| 708 | }
|
|---|
| 709 |
|
|---|
| 710 |
|
|---|
| 711 | //#undef LOG_GROUP
|
|---|
| 712 | //#define LOG_GROUP LOG_GROUP_IOM_IOPORT
|
|---|
| 713 |
|
|---|
| 714 | /**
|
|---|
| 715 | * Reads an I/O port register.
|
|---|
| 716 | *
|
|---|
| 717 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 718 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 719 | * @retval VINF_SUCCESS Success.
|
|---|
| 720 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 721 | * status code must be passed on to EM.
|
|---|
| 722 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 723 | *
|
|---|
| 724 | * @param pVM VM handle.
|
|---|
| 725 | * @param Port The port to read.
|
|---|
| 726 | * @param pu32Value Where to store the value read.
|
|---|
| 727 | * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
|
|---|
| 728 | */
|
|---|
| 729 | IOMDECL(int) IOMIOPortRead(PVM pVM, RTIOPORT Port, uint32_t *pu32Value, size_t cbValue)
|
|---|
| 730 | {
|
|---|
| 731 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 732 | /*
|
|---|
| 733 | * Get the statistics record.
|
|---|
| 734 | */
|
|---|
| 735 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastRead);
|
|---|
| 736 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 737 | {
|
|---|
| 738 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 739 | if (pStats)
|
|---|
| 740 | CTXALLSUFF(pVM->iom.s.pStatsLastRead) = pStats;
|
|---|
| 741 | }
|
|---|
| 742 | #endif
|
|---|
| 743 |
|
|---|
| 744 | /*
|
|---|
| 745 | * Get handler for current context.
|
|---|
| 746 | */
|
|---|
| 747 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastRead);
|
|---|
| 748 | if ( !pRange
|
|---|
| 749 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 750 | {
|
|---|
| 751 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 752 | if (pRange)
|
|---|
| 753 | CTXALLSUFF(pVM->iom.s.pRangeLastRead) = pRange;
|
|---|
| 754 | }
|
|---|
| 755 | #ifdef IN_GC
|
|---|
| 756 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange)); /** @todo r=bird: there is a macro for this which skips the #if'ing. */
|
|---|
| 757 | #endif
|
|---|
| 758 |
|
|---|
| 759 | if (pRange)
|
|---|
| 760 | {
|
|---|
| 761 | /*
|
|---|
| 762 | * Found a range.
|
|---|
| 763 | */
|
|---|
| 764 | #ifndef IN_RING3
|
|---|
| 765 | if (!pRange->pfnInCallback)
|
|---|
| 766 | {
|
|---|
| 767 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 768 | if (pStats)
|
|---|
| 769 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 770 | # endif
|
|---|
| 771 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 772 | }
|
|---|
| 773 | #endif
|
|---|
| 774 | /* call the device. */
|
|---|
| 775 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 776 | if (pStats)
|
|---|
| 777 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 778 | #endif
|
|---|
| 779 | int rc = pRange->pfnInCallback(pRange->pDevIns, pRange->pvUser, Port, pu32Value, cbValue);
|
|---|
| 780 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 781 | if (pStats)
|
|---|
| 782 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 783 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 784 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 785 | # ifndef IN_RING3
|
|---|
| 786 | else if (rc == VINF_IOM_HC_IOPORT_READ && pStats)
|
|---|
| 787 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 788 | # endif
|
|---|
| 789 | #endif
|
|---|
| 790 | if (rc == VERR_IOM_IOPORT_UNUSED)
|
|---|
| 791 | {
|
|---|
| 792 | /* make return value */
|
|---|
| 793 | rc = VINF_SUCCESS;
|
|---|
| 794 | switch (cbValue)
|
|---|
| 795 | {
|
|---|
| 796 | case 1: *(uint8_t *)pu32Value = 0xff; break;
|
|---|
| 797 | case 2: *(uint16_t *)pu32Value = 0xffff; break;
|
|---|
| 798 | case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
|
|---|
| 799 | default:
|
|---|
| 800 | AssertMsgFailed(("Invalid I/O port size %d. Port=%d\n", cbValue, Port));
|
|---|
| 801 | return VERR_IOM_INVALID_IOPORT_SIZE;
|
|---|
| 802 | }
|
|---|
| 803 | }
|
|---|
| 804 | Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=%Vrc\n", Port, *pu32Value, cbValue, rc));
|
|---|
| 805 | return rc;
|
|---|
| 806 | }
|
|---|
| 807 |
|
|---|
| 808 | #ifndef IN_RING3
|
|---|
| 809 | /*
|
|---|
| 810 | * Handler in ring-3?
|
|---|
| 811 | */
|
|---|
| 812 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 813 | if (pRangeR3)
|
|---|
| 814 | {
|
|---|
| 815 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 816 | if (pStats)
|
|---|
| 817 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 818 | # endif
|
|---|
| 819 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 820 | }
|
|---|
| 821 | #endif
|
|---|
| 822 |
|
|---|
| 823 | /*
|
|---|
| 824 | * Ok, no handler for this port.
|
|---|
| 825 | */
|
|---|
| 826 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 827 | if (pStats)
|
|---|
| 828 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 829 | else
|
|---|
| 830 | {
|
|---|
| 831 | # ifndef IN_RING3
|
|---|
| 832 | /* Ring-3 will have to create the statistics record. */
|
|---|
| 833 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 834 | # else
|
|---|
| 835 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 836 | if (pStats)
|
|---|
| 837 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 838 | # endif
|
|---|
| 839 | }
|
|---|
| 840 | #endif
|
|---|
| 841 |
|
|---|
| 842 | /* make return value */
|
|---|
| 843 | switch (cbValue)
|
|---|
| 844 | {
|
|---|
| 845 | case 1: *(uint8_t *)pu32Value = 0xff; break;
|
|---|
| 846 | case 2: *(uint16_t *)pu32Value = 0xffff; break;
|
|---|
| 847 | case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
|
|---|
| 848 | default:
|
|---|
| 849 | AssertMsgFailed(("Invalid I/O port size %d. Port=%d\n", cbValue, Port));
|
|---|
| 850 | return VERR_IOM_INVALID_IOPORT_SIZE;
|
|---|
| 851 | }
|
|---|
| 852 | Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=VINF_SUCCESS\n", Port, *pu32Value, cbValue));
|
|---|
| 853 | return VINF_SUCCESS;
|
|---|
| 854 | }
|
|---|
| 855 |
|
|---|
| 856 |
|
|---|
| 857 | /**
|
|---|
| 858 | * Reads the string buffer of an I/O port register.
|
|---|
| 859 | *
|
|---|
| 860 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 861 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 862 | * @retval VINF_SUCCESS Success.
|
|---|
| 863 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 864 | * status code must be passed on to EM.
|
|---|
| 865 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 866 | *
|
|---|
| 867 | * @param pVM VM handle.
|
|---|
| 868 | * @param Port The port to read.
|
|---|
| 869 | * @param pGCPtrDst Pointer to the destination buffer (GC, incremented appropriately).
|
|---|
| 870 | * @param pcTransfers Pointer to the number of transfer units to read, on return remaining transfer units.
|
|---|
| 871 | * @param cb Size of the transfer unit (1, 2 or 4 bytes).
|
|---|
| 872 | * */
|
|---|
| 873 | IOMDECL(int) IOMIOPortReadString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb)
|
|---|
| 874 | {
|
|---|
| 875 | #ifdef LOG_ENABLED
|
|---|
| 876 | const RTGCUINTREG cTransfers = *pcTransfers;
|
|---|
| 877 | #endif
|
|---|
| 878 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 879 | /*
|
|---|
| 880 | * Get the statistics record.
|
|---|
| 881 | */
|
|---|
| 882 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastRead);
|
|---|
| 883 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 884 | {
|
|---|
| 885 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 886 | if (pStats)
|
|---|
| 887 | CTXALLSUFF(pVM->iom.s.pStatsLastRead) = pStats;
|
|---|
| 888 | }
|
|---|
| 889 | #endif
|
|---|
| 890 |
|
|---|
| 891 | /*
|
|---|
| 892 | * Get handler for current context.
|
|---|
| 893 | */
|
|---|
| 894 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastRead);
|
|---|
| 895 | if ( !pRange
|
|---|
| 896 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 897 | {
|
|---|
| 898 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 899 | if (pRange)
|
|---|
| 900 | CTXALLSUFF(pVM->iom.s.pRangeLastRead) = pRange;
|
|---|
| 901 | }
|
|---|
| 902 | #ifdef IN_GC
|
|---|
| 903 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange)); /** @todo r=bird: there is a macro for this which skips the #if'ing. */
|
|---|
| 904 | #endif
|
|---|
| 905 |
|
|---|
| 906 | if (pRange)
|
|---|
| 907 | {
|
|---|
| 908 | /*
|
|---|
| 909 | * Found a range.
|
|---|
| 910 | */
|
|---|
| 911 | #ifndef IN_RING3
|
|---|
| 912 | if (!pRange->pfnInStrCallback)
|
|---|
| 913 | {
|
|---|
| 914 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 915 | if (pStats)
|
|---|
| 916 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 917 | # endif
|
|---|
| 918 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 919 | }
|
|---|
| 920 | #endif
|
|---|
| 921 | /* call the device. */
|
|---|
| 922 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 923 | if (pStats)
|
|---|
| 924 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 925 | #endif
|
|---|
| 926 |
|
|---|
| 927 | int rc = pRange->pfnInStrCallback(pRange->pDevIns, pRange->pvUser, Port, pGCPtrDst, pcTransfers, cb);
|
|---|
| 928 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 929 | if (pStats)
|
|---|
| 930 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 931 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 932 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 933 | # ifndef IN_RING3
|
|---|
| 934 | else if (rc == VINF_IOM_HC_IOPORT_READ && pStats)
|
|---|
| 935 | STAM_COUNTER_INC(&pStats->CTXALLMID(In, ToR3));
|
|---|
| 936 | # endif
|
|---|
| 937 | #endif
|
|---|
| 938 | Log3(("IOMIOPortReadStr: Port=%RTiop pGCPtrDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=%Vrc\n",
|
|---|
| 939 | Port, pGCPtrDst, pcTransfers, cTransfers, *pcTransfers, cb, rc));
|
|---|
| 940 | return rc;
|
|---|
| 941 | }
|
|---|
| 942 |
|
|---|
| 943 | #ifndef IN_RING3
|
|---|
| 944 | /*
|
|---|
| 945 | * Handler in ring-3?
|
|---|
| 946 | */
|
|---|
| 947 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 948 | if (pRangeR3)
|
|---|
| 949 | {
|
|---|
| 950 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 951 | if (pStats)
|
|---|
| 952 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 953 | # endif
|
|---|
| 954 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 955 | }
|
|---|
| 956 | #endif
|
|---|
| 957 |
|
|---|
| 958 | /*
|
|---|
| 959 | * Ok, no handler for this port.
|
|---|
| 960 | */
|
|---|
| 961 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 962 | if (pStats)
|
|---|
| 963 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 964 | else
|
|---|
| 965 | {
|
|---|
| 966 | # ifndef IN_RING3
|
|---|
| 967 | /* Ring-3 will have to create the statistics record. */
|
|---|
| 968 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 969 | # else
|
|---|
| 970 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 971 | if (pStats)
|
|---|
| 972 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 973 | # endif
|
|---|
| 974 | }
|
|---|
| 975 | #endif
|
|---|
| 976 |
|
|---|
| 977 | Log3(("IOMIOPortReadStr: Port=%RTiop pGCPtrDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=VINF_SUCCESS\n",
|
|---|
| 978 | Port, pGCPtrDst, pcTransfers, cTransfers, *pcTransfers, cb));
|
|---|
| 979 | return VINF_SUCCESS;
|
|---|
| 980 | }
|
|---|
| 981 |
|
|---|
| 982 |
|
|---|
| 983 | /**
|
|---|
| 984 | * Writes to an I/O port register.
|
|---|
| 985 | *
|
|---|
| 986 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 987 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 988 | * @retval VINF_SUCCESS Success.
|
|---|
| 989 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 990 | * status code must be passed on to EM.
|
|---|
| 991 | * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
|
|---|
| 992 | *
|
|---|
| 993 | * @param pVM VM handle.
|
|---|
| 994 | * @param Port The port to write to.
|
|---|
| 995 | * @param u32Value The value to write.
|
|---|
| 996 | * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
|
|---|
| 997 | */
|
|---|
| 998 | IOMDECL(int) IOMIOPortWrite(PVM pVM, RTIOPORT Port, uint32_t u32Value, size_t cbValue)
|
|---|
| 999 | {
|
|---|
| 1000 | /** @todo bird: When I get time, I'll remove the GC tree and link the GC entries to the ring-3 node. */
|
|---|
| 1001 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1002 | /*
|
|---|
| 1003 | * Find the statistics record.
|
|---|
| 1004 | */
|
|---|
| 1005 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastWrite);
|
|---|
| 1006 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 1007 | {
|
|---|
| 1008 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 1009 | if (pStats)
|
|---|
| 1010 | CTXALLSUFF(pVM->iom.s.pStatsLastWrite) = pStats;
|
|---|
| 1011 | }
|
|---|
| 1012 | #endif
|
|---|
| 1013 |
|
|---|
| 1014 | /*
|
|---|
| 1015 | * Get handler for current context.
|
|---|
| 1016 | */
|
|---|
| 1017 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastWrite);
|
|---|
| 1018 | if ( !pRange
|
|---|
| 1019 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 1020 | {
|
|---|
| 1021 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 1022 | if (pRange)
|
|---|
| 1023 | CTXALLSUFF(pVM->iom.s.pRangeLastWrite) = pRange;
|
|---|
| 1024 | }
|
|---|
| 1025 | #ifdef IN_GC
|
|---|
| 1026 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange));
|
|---|
| 1027 | #endif
|
|---|
| 1028 |
|
|---|
| 1029 | if (pRange)
|
|---|
| 1030 | {
|
|---|
| 1031 | /*
|
|---|
| 1032 | * Found a range.
|
|---|
| 1033 | */
|
|---|
| 1034 | #ifndef IN_RING3
|
|---|
| 1035 | if (!pRange->pfnOutCallback)
|
|---|
| 1036 | {
|
|---|
| 1037 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1038 | if (pStats)
|
|---|
| 1039 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1040 | # endif
|
|---|
| 1041 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1042 | }
|
|---|
| 1043 | #endif
|
|---|
| 1044 | /* call the device. */
|
|---|
| 1045 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1046 | if (pStats)
|
|---|
| 1047 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1048 | #endif
|
|---|
| 1049 | int rc = pRange->pfnOutCallback(pRange->pDevIns, pRange->pvUser, Port, u32Value, cbValue);
|
|---|
| 1050 |
|
|---|
| 1051 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1052 | if (pStats)
|
|---|
| 1053 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1054 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 1055 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1056 | # ifndef IN_RING3
|
|---|
| 1057 | else if (rc == VINF_IOM_HC_IOPORT_WRITE && pStats)
|
|---|
| 1058 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out, ToR3));
|
|---|
| 1059 | # endif
|
|---|
| 1060 | #endif
|
|---|
| 1061 | Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d rc=%Vrc\n", Port, u32Value, cbValue, rc));
|
|---|
| 1062 | return rc;
|
|---|
| 1063 | }
|
|---|
| 1064 |
|
|---|
| 1065 | #ifndef IN_RING3
|
|---|
| 1066 | /*
|
|---|
| 1067 | * Handler in ring-3?
|
|---|
| 1068 | */
|
|---|
| 1069 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 1070 | if (pRangeR3)
|
|---|
| 1071 | {
|
|---|
| 1072 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1073 | if (pStats)
|
|---|
| 1074 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1075 | # endif
|
|---|
| 1076 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1077 | }
|
|---|
| 1078 | #endif
|
|---|
| 1079 |
|
|---|
| 1080 | /*
|
|---|
| 1081 | * Ok, no handler for that port.
|
|---|
| 1082 | */
|
|---|
| 1083 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1084 | /* statistics. */
|
|---|
| 1085 | if (pStats)
|
|---|
| 1086 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1087 | else
|
|---|
| 1088 | {
|
|---|
| 1089 | # ifndef IN_RING3
|
|---|
| 1090 | /* R3 will have to create the statistics record. */
|
|---|
| 1091 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1092 | # else
|
|---|
| 1093 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 1094 | if (pStats)
|
|---|
| 1095 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1096 | # endif
|
|---|
| 1097 | }
|
|---|
| 1098 | #endif
|
|---|
| 1099 | Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d nop\n", Port, u32Value, cbValue));
|
|---|
| 1100 | return VINF_SUCCESS;
|
|---|
| 1101 | }
|
|---|
| 1102 |
|
|---|
| 1103 |
|
|---|
| 1104 | /**
|
|---|
| 1105 | * Writes the string buffer of an I/O port register.
|
|---|
| 1106 | *
|
|---|
| 1107 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 1108 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 1109 | * @retval VINF_SUCCESS Success.
|
|---|
| 1110 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 1111 | * status code must be passed on to EM.
|
|---|
| 1112 | * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
|
|---|
| 1113 | *
|
|---|
| 1114 | * @param pVM VM handle.
|
|---|
| 1115 | * @param Port The port to write.
|
|---|
| 1116 | * @param pGCPtrSrc Pointer to the source buffer (GC, incremented appropriately).
|
|---|
| 1117 | * @param pcTransfers Pointer to the number of transfer units to write, on return remaining transfer units.
|
|---|
| 1118 | * @param cb Size of the transfer unit (1, 2 or 4 bytes).
|
|---|
| 1119 | * */
|
|---|
| 1120 | IOMDECL(int) IOMIOPortWriteString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrSrc, PRTGCUINTREG pcTransfers, unsigned cb)
|
|---|
| 1121 | {
|
|---|
| 1122 | #ifdef LOG_ENABLED
|
|---|
| 1123 | const RTGCUINTREG cTransfers = *pcTransfers;
|
|---|
| 1124 | #endif
|
|---|
| 1125 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1126 | /*
|
|---|
| 1127 | * Get the statistics record.
|
|---|
| 1128 | */
|
|---|
| 1129 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastWrite);
|
|---|
| 1130 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 1131 | {
|
|---|
| 1132 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 1133 | if (pStats)
|
|---|
| 1134 | CTXALLSUFF(pVM->iom.s.pStatsLastWrite) = pStats;
|
|---|
| 1135 | }
|
|---|
| 1136 | #endif
|
|---|
| 1137 |
|
|---|
| 1138 | /*
|
|---|
| 1139 | * Get handler for current context.
|
|---|
| 1140 | */
|
|---|
| 1141 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastWrite);
|
|---|
| 1142 | if ( !pRange
|
|---|
| 1143 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 1144 | {
|
|---|
| 1145 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 1146 | if (pRange)
|
|---|
| 1147 | CTXALLSUFF(pVM->iom.s.pRangeLastWrite) = pRange;
|
|---|
| 1148 | }
|
|---|
| 1149 | #ifdef IN_GC
|
|---|
| 1150 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange)); /** @todo r=bird: there is a macro for this which skips the #if'ing. */
|
|---|
| 1151 | #endif
|
|---|
| 1152 |
|
|---|
| 1153 | if (pRange)
|
|---|
| 1154 | {
|
|---|
| 1155 | /*
|
|---|
| 1156 | * Found a range.
|
|---|
| 1157 | */
|
|---|
| 1158 | #ifndef IN_RING3
|
|---|
| 1159 | if (!pRange->pfnOutStrCallback)
|
|---|
| 1160 | {
|
|---|
| 1161 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1162 | if (pStats)
|
|---|
| 1163 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1164 | # endif
|
|---|
| 1165 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1166 | }
|
|---|
| 1167 | #endif
|
|---|
| 1168 | /* call the device. */
|
|---|
| 1169 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1170 | if (pStats)
|
|---|
| 1171 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1172 | #endif
|
|---|
| 1173 | int rc = pRange->pfnOutStrCallback(pRange->pDevIns, pRange->pvUser, Port, pGCPtrSrc, pcTransfers, cb);
|
|---|
| 1174 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1175 | if (pStats)
|
|---|
| 1176 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1177 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 1178 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1179 | # ifndef IN_RING3
|
|---|
| 1180 | else if (rc == VINF_IOM_HC_IOPORT_WRITE && pStats)
|
|---|
| 1181 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out, ToR3));
|
|---|
| 1182 | # endif
|
|---|
| 1183 | #endif
|
|---|
| 1184 | Log3(("IOMIOPortWriteStr: Port=%RTiop pGCPtrSrc=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=%Vrc\n",
|
|---|
| 1185 | Port, pGCPtrSrc, pcTransfers, cTransfers, *pcTransfers, cb, rc));
|
|---|
| 1186 | return rc;
|
|---|
| 1187 | }
|
|---|
| 1188 |
|
|---|
| 1189 | #ifndef IN_RING3
|
|---|
| 1190 | /*
|
|---|
| 1191 | * Handler in ring-3?
|
|---|
| 1192 | */
|
|---|
| 1193 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 1194 | if (pRangeR3)
|
|---|
| 1195 | {
|
|---|
| 1196 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1197 | if (pStats)
|
|---|
| 1198 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1199 | # endif
|
|---|
| 1200 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1201 | }
|
|---|
| 1202 | #endif
|
|---|
| 1203 |
|
|---|
| 1204 | /*
|
|---|
| 1205 | * Ok, no handler for this port.
|
|---|
| 1206 | */
|
|---|
| 1207 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1208 | if (pStats)
|
|---|
| 1209 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1210 | else
|
|---|
| 1211 | {
|
|---|
| 1212 | # ifndef IN_RING3
|
|---|
| 1213 | /* Ring-3 will have to create the statistics record. */
|
|---|
| 1214 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1215 | # else
|
|---|
| 1216 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 1217 | if (pStats)
|
|---|
| 1218 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1219 | # endif
|
|---|
| 1220 | }
|
|---|
| 1221 | #endif
|
|---|
| 1222 |
|
|---|
| 1223 | Log3(("IOMIOPortWriteStr: Port=%RTiop pGCPtrSrc=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=VINF_SUCCESS\n",
|
|---|
| 1224 | Port, pGCPtrSrc, pcTransfers, cTransfers, *pcTransfers, cb));
|
|---|
| 1225 | return VINF_SUCCESS;
|
|---|
| 1226 | }
|
|---|
| 1227 |
|
|---|
| 1228 |
|
|---|
| 1229 | /**
|
|---|
| 1230 | * Checks that the operation is allowed according to the IOPL
|
|---|
| 1231 | * level and I/O bitmap.
|
|---|
| 1232 | *
|
|---|
| 1233 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 1234 | * here are to be treated as internal failure.
|
|---|
| 1235 | * @retval VINF_SUCCESS Success.
|
|---|
| 1236 | * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
|
|---|
| 1237 | * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
|
|---|
| 1238 | * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
|
|---|
| 1239 | *
|
|---|
| 1240 | * @param pVM VM handle.
|
|---|
| 1241 | * @param pCtxCore Pointer to register frame.
|
|---|
| 1242 | * @param Port The I/O port number.
|
|---|
| 1243 | * @param cb The access size.
|
|---|
| 1244 | */
|
|---|
| 1245 | IOMDECL(int) IOMInterpretCheckPortIOAccess(PVM pVM, PCPUMCTXCORE pCtxCore, RTIOPORT Port, unsigned cb)
|
|---|
| 1246 | {
|
|---|
| 1247 | /*
|
|---|
| 1248 | * If this isn't ring-0, we have to check for I/O privileges.
|
|---|
| 1249 | */
|
|---|
| 1250 | uint32_t efl = CPUMRawGetEFlags(pVM, pCtxCore);
|
|---|
| 1251 | uint32_t cpl = CPUMGetGuestCPL(pVM, pCtxCore);
|
|---|
| 1252 |
|
|---|
| 1253 | if ( ( cpl > 0
|
|---|
| 1254 | && X86_EFL_GET_IOPL(efl) < cpl)
|
|---|
| 1255 | || pCtxCore->eflags.Bits.u1VM /* IOPL is ignored in V86 mode; always check TSS bitmap */
|
|---|
| 1256 | )
|
|---|
| 1257 | {
|
|---|
| 1258 | /*
|
|---|
| 1259 | * Get TSS location and check if there can be a I/O bitmap.
|
|---|
| 1260 | */
|
|---|
| 1261 | RTGCUINTPTR GCPtrTss;
|
|---|
| 1262 | RTGCUINTPTR cbTss;
|
|---|
| 1263 | bool fCanHaveIOBitmap;
|
|---|
| 1264 | int rc = SELMGetTSSInfo(pVM, &GCPtrTss, &cbTss, &fCanHaveIOBitmap);
|
|---|
| 1265 | if (VBOX_FAILURE(rc))
|
|---|
| 1266 | {
|
|---|
| 1267 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d %Vrc -> #GP(0)\n", Port, cb, rc));
|
|---|
| 1268 | return TRPMRaiseXcptErr(pVM, pCtxCore, X86_XCPT_GP, 0);
|
|---|
| 1269 | }
|
|---|
| 1270 |
|
|---|
| 1271 | if ( !fCanHaveIOBitmap
|
|---|
| 1272 | || cbTss <= sizeof(VBOXTSS))
|
|---|
| 1273 | {
|
|---|
| 1274 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d cbTss=%#x fCanHaveIOBitmap=%RTbool -> #GP(0)\n",
|
|---|
| 1275 | Port, cb, cbTss, fCanHaveIOBitmap));
|
|---|
| 1276 | return TRPMRaiseXcptErr(pVM, pCtxCore, X86_XCPT_GP, 0);
|
|---|
| 1277 | }
|
|---|
| 1278 |
|
|---|
| 1279 | /*
|
|---|
| 1280 | * Fetch the I/O bitmap offset.
|
|---|
| 1281 | */
|
|---|
| 1282 | uint16_t offIOPB;
|
|---|
| 1283 | rc = PGMPhysInterpretedRead(pVM, pCtxCore, &offIOPB, GCPtrTss + RT_OFFSETOF(VBOXTSS, offIoBitmap), sizeof(offIOPB));
|
|---|
| 1284 | if (rc != VINF_SUCCESS)
|
|---|
| 1285 | {
|
|---|
| 1286 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d GCPtrTss=%VGv %Vrc\n",
|
|---|
| 1287 | Port, cb, GCPtrTss, rc));
|
|---|
| 1288 | return rc;
|
|---|
| 1289 | }
|
|---|
| 1290 |
|
|---|
| 1291 | /*
|
|---|
| 1292 | * Check the limit and read the two bitmap bytes.
|
|---|
| 1293 | */
|
|---|
| 1294 | uint32_t offTss = offIOPB + (Port >> 3);
|
|---|
| 1295 | if (offTss + 1 >= cbTss)
|
|---|
| 1296 | {
|
|---|
| 1297 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d offTss=%#x cbTss=%#x -> #GP(0)\n",
|
|---|
| 1298 | Port, cb, offTss, cbTss));
|
|---|
| 1299 | return TRPMRaiseXcptErr(pVM, pCtxCore, X86_XCPT_GP, 0);
|
|---|
| 1300 | }
|
|---|
| 1301 | uint16_t u16;
|
|---|
| 1302 | rc = PGMPhysInterpretedRead(pVM, pCtxCore, &u16, GCPtrTss + offTss, sizeof(u16));
|
|---|
| 1303 | if (rc != VINF_SUCCESS)
|
|---|
| 1304 | {
|
|---|
| 1305 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d GCPtrTss=%VGv offTss=%#x -> %Vrc\n",
|
|---|
| 1306 | Port, cb, GCPtrTss, offTss, rc));
|
|---|
| 1307 | return rc;
|
|---|
| 1308 | }
|
|---|
| 1309 |
|
|---|
| 1310 | /*
|
|---|
| 1311 | * All the bits must be clear.
|
|---|
| 1312 | */
|
|---|
| 1313 | if ((u16 >> (Port & 7)) & ((1 << cb) - 1))
|
|---|
| 1314 | {
|
|---|
| 1315 | Log(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d u16=%#x -> #GP(0)\n",
|
|---|
| 1316 | Port, cb, u16, offTss));
|
|---|
| 1317 | return TRPMRaiseXcptErr(pVM, pCtxCore, X86_XCPT_GP, 0);
|
|---|
| 1318 | }
|
|---|
| 1319 | LogFlow(("iomInterpretCheckPortIOAccess: Port=%RTiop cb=%d offTss=%#x cbTss=%#x u16=%#x -> OK\n",
|
|---|
| 1320 | Port, cb, u16, offTss, cbTss));
|
|---|
| 1321 | }
|
|---|
| 1322 | return VINF_SUCCESS;
|
|---|
| 1323 | }
|
|---|
| 1324 |
|
|---|
| 1325 | /**
|
|---|
| 1326 | * IN <AL|AX|EAX>, <DX|imm16>
|
|---|
| 1327 | *
|
|---|
| 1328 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 1329 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 1330 | * @retval VINF_SUCCESS Success.
|
|---|
| 1331 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 1332 | * status code must be passed on to EM.
|
|---|
| 1333 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 1334 | * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
|
|---|
| 1335 | * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
|
|---|
| 1336 | * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
|
|---|
| 1337 | *
|
|---|
| 1338 | * @param pVM The virtual machine (GC pointer ofcourse).
|
|---|
| 1339 | * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
|
|---|
| 1340 | * @param pCpu Disassembler CPU state.
|
|---|
| 1341 | */
|
|---|
| 1342 | IOMDECL(int) IOMInterpretIN(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
|
|---|
| 1343 | {
|
|---|
| 1344 | #ifdef IN_GC
|
|---|
| 1345 | STAM_COUNTER_INC(&pVM->iom.s.StatGCInstIn);
|
|---|
| 1346 | #endif
|
|---|
| 1347 |
|
|---|
| 1348 | /*
|
|---|
| 1349 | * Get port number from second parameter.
|
|---|
| 1350 | * And get the register size from the first parameter.
|
|---|
| 1351 | */
|
|---|
| 1352 | uint32_t uPort = 0;
|
|---|
| 1353 | unsigned cbSize = 0;
|
|---|
| 1354 | bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uPort, &cbSize);
|
|---|
| 1355 | AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
|
|---|
| 1356 |
|
|---|
| 1357 | cbSize = iomGCGetRegSize(pCpu, &pCpu->param1);
|
|---|
| 1358 | Assert(cbSize > 0);
|
|---|
| 1359 | int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
|
|---|
| 1360 | if (rc == VINF_SUCCESS)
|
|---|
| 1361 | {
|
|---|
| 1362 | /*
|
|---|
| 1363 | * Attemp to read the port.
|
|---|
| 1364 | */
|
|---|
| 1365 | uint32_t u32Data = ~0U;
|
|---|
| 1366 | rc = IOMIOPortRead(pVM, uPort, &u32Data, cbSize);
|
|---|
| 1367 | if (IOM_SUCCESS(rc))
|
|---|
| 1368 | {
|
|---|
| 1369 | /*
|
|---|
| 1370 | * Store the result in the AL|AX|EAX register.
|
|---|
| 1371 | */
|
|---|
| 1372 | fRc = iomGCSaveDataToReg(pCpu, &pCpu->param1, pRegFrame, u32Data);
|
|---|
| 1373 | AssertMsg(fRc, ("Failed to store register value!\n")); NOREF(fRc);
|
|---|
| 1374 | }
|
|---|
| 1375 | else
|
|---|
| 1376 | AssertMsg(rc == VINF_IOM_HC_IOPORT_READ || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1377 | }
|
|---|
| 1378 | else
|
|---|
| 1379 | AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP || rc == VINF_TRPM_XCPT_DISPATCHED || rc == VINF_TRPM_XCPT_DISPATCHED || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1380 | return rc;
|
|---|
| 1381 | }
|
|---|
| 1382 |
|
|---|
| 1383 |
|
|---|
| 1384 | /**
|
|---|
| 1385 | * OUT <DX|imm16>, <AL|AX|EAX>
|
|---|
| 1386 | *
|
|---|
| 1387 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 1388 | * here are to be treated as internal failure. Use IOM_SUCCESS() to check for success.
|
|---|
| 1389 | * @retval VINF_SUCCESS Success.
|
|---|
| 1390 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success with some exceptions (see IOM_SUCCESS()), the
|
|---|
| 1391 | * status code must be passed on to EM.
|
|---|
| 1392 | * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
|
|---|
| 1393 | * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
|
|---|
| 1394 | * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
|
|---|
| 1395 | * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
|
|---|
| 1396 | *
|
|---|
| 1397 | * @param pVM The virtual machine (GC pointer ofcourse).
|
|---|
| 1398 | * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
|
|---|
| 1399 | * @param pCpu Disassembler CPU state.
|
|---|
| 1400 | */
|
|---|
| 1401 | IOMDECL(int) IOMInterpretOUT(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
|
|---|
| 1402 | {
|
|---|
| 1403 | #ifdef IN_GC
|
|---|
| 1404 | STAM_COUNTER_INC(&pVM->iom.s.StatGCInstOut);
|
|---|
| 1405 | #endif
|
|---|
| 1406 |
|
|---|
| 1407 | /*
|
|---|
| 1408 | * Get port number from first parameter.
|
|---|
| 1409 | * And get the register size and value from the second parameter.
|
|---|
| 1410 | */
|
|---|
| 1411 | uint32_t uPort = 0;
|
|---|
| 1412 | unsigned cbSize = 0;
|
|---|
| 1413 | bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uPort, &cbSize);
|
|---|
| 1414 | AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
|
|---|
| 1415 |
|
|---|
| 1416 | int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
|
|---|
| 1417 | if (rc == VINF_SUCCESS)
|
|---|
| 1418 | {
|
|---|
| 1419 | uint32_t u32Data = 0;
|
|---|
| 1420 | fRc = iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &u32Data, &cbSize);
|
|---|
| 1421 | AssertMsg(fRc, ("Failed to get reg value!\n")); NOREF(fRc);
|
|---|
| 1422 |
|
|---|
| 1423 | /*
|
|---|
| 1424 | * Attempt to write to the port.
|
|---|
| 1425 | */
|
|---|
| 1426 | rc = IOMIOPortWrite(pVM, uPort, u32Data, cbSize);
|
|---|
| 1427 | AssertMsg(rc == VINF_SUCCESS || rc == VINF_IOM_HC_IOPORT_WRITE || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST) || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1428 | }
|
|---|
| 1429 | else
|
|---|
| 1430 | AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP || rc == VINF_TRPM_XCPT_DISPATCHED || rc == VINF_TRPM_XCPT_DISPATCHED || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1431 | return rc;
|
|---|
| 1432 | }
|
|---|
