| 1 | /* $Id: IOMAll.cpp 2504 2007-05-04 18:12:30Z 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 InnoTek Systemberatung 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 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | /*******************************************************************************
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| 23 | * Header Files *
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| 24 | *******************************************************************************/
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| 25 | #define LOG_GROUP LOG_GROUP_IOM
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| 26 | #include <VBox/iom.h>
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| 27 | #include <VBox/mm.h>
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| 28 | #include <VBox/param.h>
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| 29 | #include "IOMInternal.h"
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| 30 | #include <VBox/vm.h>
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| 31 | #include <VBox/selm.h>
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| 32 | #include <VBox/trpm.h>
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| 33 | #include <VBox/pgm.h>
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| 34 | #include <VBox/cpum.h>
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| 35 | #include <VBox/err.h>
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| 36 | #include <VBox/log.h>
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| 37 | #include <iprt/assert.h>
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| 38 |
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| 39 |
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| 40 | /*******************************************************************************
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| 41 | * Global Variables *
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| 42 | *******************************************************************************/
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| 43 |
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| 44 | /**
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| 45 | * Array for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
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| 46 | */
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| 47 | static const unsigned g_aSize2Shift[] =
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| 48 | {
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| 49 | ~0, /* 0 - invalid */
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| 50 | 0, /* *1 == 2^0 */
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| 51 | 1, /* *2 == 2^1 */
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| 52 | ~0, /* 3 - invalid */
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| 53 | 2, /* *4 == 2^2 */
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| 54 | ~0, /* 5 - invalid */
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| 55 | ~0, /* 6 - invalid */
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| 56 | ~0, /* 7 - invalid */
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| 57 | 3 /* *8 == 2^3 */
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| 58 | };
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| 59 |
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| 60 | /**
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| 61 | * Macro for fast recode of the operand size (1/2/4/8 bytes) to bit shift value.
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| 62 | */
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| 63 | #define SIZE2SHIFT(cb) (g_aSize2Shift[cb])
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| 64 |
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| 65 | /**
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| 66 | * Calculates the size of register parameter.
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| 67 | *
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| 68 | * @returns 1, 2, 4 on success.
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| 69 | * @returns 0 if non-register parameter.
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| 70 | * @param pCpu Pointer to current disassembler context.
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| 71 | * @param pParam Pointer to parameter of instruction to proccess.
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| 72 | */
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| 73 | static unsigned iomGCGetRegSize(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam)
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| 74 | {
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| 75 | 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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| 76 | return 0;
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| 77 |
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| 78 | if (pParam->flags & USE_REG_GEN32)
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| 79 | return 4;
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| 80 |
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| 81 | if (pParam->flags & USE_REG_GEN16)
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| 82 | return 2;
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| 83 |
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| 84 | if (pParam->flags & USE_REG_GEN8)
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| 85 | return 1;
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| 86 |
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| 87 | if (pParam->flags & USE_REG_SEG)
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| 88 | return 2;
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| 89 | return 0;
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| 90 | }
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| 91 |
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| 92 | /**
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| 93 | * Returns the contents of register or immediate data of instruction's parameter.
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| 94 | *
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| 95 | * @returns true on success.
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| 96 | *
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| 97 | * @param pCpu Pointer to current disassembler context.
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| 98 | * @param pParam Pointer to parameter of instruction to proccess.
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| 99 | * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
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| 100 | * @param pu32Data Where to store retrieved data.
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| 101 | * @param pcbSize Where to store the size of data (1, 2, 4).
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| 102 | */
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| 103 | static bool iomGCGetRegImmData(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint32_t *pu32Data, unsigned *pcbSize)
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| 104 | {
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| 105 | if (pParam->flags & (USE_BASE | USE_INDEX | USE_SCALE | USE_DISPLACEMENT8 | USE_DISPLACEMENT16 | USE_DISPLACEMENT32))
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| 106 | {
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| 107 | *pcbSize = 0;
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| 108 | *pu32Data = 0;
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| 109 | return false;
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| 110 | }
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| 111 |
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| 112 | if (pParam->flags & USE_REG_GEN32)
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| 113 | {
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| 114 | *pcbSize = 4;
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| 115 | DISFetchReg32(pRegFrame, pParam->base.reg_gen32, pu32Data);
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| 116 | return true;
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| 117 | }
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| 118 |
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| 119 | if (pParam->flags & USE_REG_GEN16)
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| 120 | {
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| 121 | *pcbSize = 2;
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| 122 | DISFetchReg16(pRegFrame, pParam->base.reg_gen16, (uint16_t *)pu32Data);
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| 123 | return true;
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| 124 | }
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| 125 |
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| 126 | if (pParam->flags & USE_REG_GEN8)
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| 127 | {
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| 128 | *pcbSize = 1;
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| 129 | DISFetchReg8(pRegFrame, pParam->base.reg_gen8, (uint8_t *)pu32Data);
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| 130 | return true;
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| 131 | }
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| 132 |
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| 133 | if (pParam->flags & (USE_IMMEDIATE32|USE_IMMEDIATE32_SX8))
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| 134 | {
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| 135 | *pcbSize = 4;
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| 136 | *pu32Data = (uint32_t)pParam->parval;
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| 137 | return true;
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| 138 | }
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| 139 |
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| 140 | if (pParam->flags & (USE_IMMEDIATE16|USE_IMMEDIATE16_SX8))
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| 141 | {
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| 142 | *pcbSize = 2;
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| 143 | *pu32Data = (uint16_t)pParam->parval;
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| 144 | return true;
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| 145 | }
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| 146 |
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| 147 | if (pParam->flags & USE_IMMEDIATE8)
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| 148 | {
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| 149 | *pcbSize = 1;
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| 150 | *pu32Data = (uint8_t)pParam->parval;
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| 151 | return true;
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| 152 | }
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| 153 |
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| 154 | if (pParam->flags & USE_REG_SEG)
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| 155 | {
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| 156 | *pcbSize = 2;
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| 157 | DISFetchRegSeg(pRegFrame, pParam->base.reg_seg, (RTSEL *)pu32Data);
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| 158 | return true;
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| 159 | } /* Else - error. */
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| 160 |
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| 161 | *pcbSize = 0;
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| 162 | *pu32Data = 0;
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| 163 | return false;
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| 164 | }
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| 165 |
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| 166 |
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| 167 | /**
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| 168 | * Saves data to 8/16/32 general purpose or segment register defined by
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| 169 | * instruction's parameter.
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| 170 | *
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| 171 | * @returns true on success.
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| 172 | * @param pCpu Pointer to current disassembler context.
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| 173 | * @param pParam Pointer to parameter of instruction to proccess.
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| 174 | * @param pRegFrame Pointer to CPUMCTXCORE guest structure.
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| 175 | * @param u32Data 8/16/32 bit data to store.
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| 176 | */
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| 177 | static bool iomGCSaveDataToReg(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, unsigned u32Data)
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| 178 | {
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| 179 | 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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| 180 | {
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| 181 | return false;
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| 182 | }
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| 183 |
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| 184 | if (pParam->flags & USE_REG_GEN32)
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| 185 | {
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| 186 | DISWriteReg32(pRegFrame, pParam->base.reg_gen32, u32Data);
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| 187 | return true;
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| 188 | }
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| 189 |
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| 190 | if (pParam->flags & USE_REG_GEN16)
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| 191 | {
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| 192 | DISWriteReg16(pRegFrame, pParam->base.reg_gen16, (uint16_t)u32Data);
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| 193 | return true;
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| 194 | }
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| 195 |
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| 196 | if (pParam->flags & USE_REG_GEN8)
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| 197 | {
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| 198 | DISWriteReg8(pRegFrame, pParam->base.reg_gen8, (uint8_t)u32Data);
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| 199 | return true;
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| 200 | }
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| 201 |
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| 202 | if (pParam->flags & USE_REG_SEG)
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| 203 | {
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| 204 | DISWriteRegSeg(pRegFrame, pParam->base.reg_seg, (RTSEL)u32Data);
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| 205 | return true;
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| 206 | }
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| 207 |
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| 208 | /* Else - error. */
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| 209 | return false;
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| 210 | }
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| 211 |
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| 212 | /*
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| 213 | * Internal - statistics only.
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| 214 | */
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| 215 | inline void iomGCMMIOStatLength(PVM pVM, unsigned cb)
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| 216 | {
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| 217 | #ifdef VBOX_WITH_STATISTICS
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| 218 | switch (cb)
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| 219 | {
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| 220 | case 1:
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| 221 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO1Byte);
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| 222 | break;
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| 223 | case 2:
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| 224 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO2Bytes);
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| 225 | break;
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| 226 | case 4:
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| 227 | STAM_COUNTER_INC(&pVM->iom.s.StatGCMMIO4Bytes);
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| 228 | break;
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| 229 | default:
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| 230 | /* No way. */
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| 231 | AssertMsgFailed(("Invalid data length %d\n", cb));
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| 232 | break;
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| 233 | }
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| 234 | #else
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| 235 | NOREF(pVM); NOREF(cb);
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| 236 | #endif
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| 237 | }
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| 238 |
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| 239 | /**
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| 240 | * Registers a Port IO GC handler.
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| 241 | *
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| 242 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
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| 243 | * using IOMIOPortRegisterR3() before calling this function.
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| 244 | *
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| 245 | *
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| 246 | * @returns VBox status code.
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| 247 | *
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| 248 | * @param pVM VM handle.
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| 249 | * @param pDevIns PDM device instance owning the port range.
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| 250 | * @param PortStart First port number in the range.
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| 251 | * @param cPorts Number of ports to register.
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| 252 | * @param pvUser User argument for the callbacks.
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| 253 | * @param pfnOutCallback Pointer to function which is gonna handle OUT operations in GC.
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| 254 | * @param pfnInCallback Pointer to function which is gonna handle IN operations in GC.
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| 255 | * @param pfnOutStrCallback Pointer to function which is gonna handle string OUT operations in GC.
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| 256 | * @param pfnInStrCallback Pointer to function which is gonna handle string IN operations in GC.
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| 257 | * @param pszDesc Pointer to description string. This must not be freed.
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| 258 | */
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| 259 | IOMDECL(int) IOMIOPortRegisterGC(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTGCPTR pvUser,
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| 260 | GCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, GCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
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| 261 | GCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, GCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback, const char *pszDesc)
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| 262 | {
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| 263 | 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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| 264 | pDevIns, PortStart, cPorts, pvUser, pfnOutCallback, pfnInCallback, pfnOutStrCallback, pfnInStrCallback, pszDesc));
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| 265 |
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| 266 | /*
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| 267 | * Validate input.
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| 268 | */
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| 269 | if ( (RTUINT)PortStart + cPorts <= (RTUINT)PortStart
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| 270 | || (RTUINT)PortStart + cPorts > 0x10000)
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| 271 | {
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| 272 | AssertMsgFailed(("Invalid port range %#x-%#x! (%s)\n", PortStart, (RTUINT)PortStart + (cPorts - 1), pszDesc));
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| 273 | return VERR_IOM_INVALID_IOPORT_RANGE;
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| 274 | }
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| 275 | RTIOPORT PortLast = PortStart + (cPorts - 1);
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| 276 | if (!pfnOutCallback && !pfnInCallback)
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| 277 | {
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| 278 | AssertMsgFailed(("Invalid port range %#x-%#x! No callbacks! (%s)\n", PortStart, PortLast, pszDesc));
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| 279 | return VERR_INVALID_PARAMETER;
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| 280 | }
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| 281 |
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| 282 | /*
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| 283 | * Validate that there are ring-3 ranges for the ports.
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| 284 | */
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| 285 | RTIOPORT Port = PortStart;
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| 286 | while (Port <= PortLast && Port >= PortStart)
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| 287 | {
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| 288 | PIOMIOPORTRANGER3 pRange = (PIOMIOPORTRANGER3)RTAvlroIOPortRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR3, Port);
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| 289 | if (!pRange)
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| 290 | {
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| 291 | AssertMsgFailed(("No R3! Port=#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 292 | return VERR_IOM_NO_HC_IOPORT_RANGE;
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| 293 | }
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| 294 | #ifndef IOM_NO_PDMINS_CHECKS
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| 295 | #ifndef IN_GC
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| 296 | if (pRange->pDevIns != pDevIns)
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| 297 | #else
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| 298 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
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| 299 | #endif
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| 300 | {
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| 301 | AssertMsgFailed(("Not owner! Port=%#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 302 | return VERR_IOM_NOT_IOPORT_RANGE_OWNER;
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| 303 | }
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| 304 | #endif
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| 305 | Port = pRange->Core.KeyLast + 1;
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| 306 | }
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| 307 |
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| 308 | /* Flush the IO port lookup cache */
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| 309 | IOMFlushCache(pVM);
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| 310 |
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| 311 | /*
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| 312 | * Allocate new range record and initialize it.
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| 313 | */
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| 314 | PIOMIOPORTRANGEGC pRange;
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| 315 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
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| 316 | if (VBOX_SUCCESS(rc))
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| 317 | {
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| 318 | pRange->Core.Key = PortStart;
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| 319 | pRange->Core.KeyLast = PortLast;
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| 320 | pRange->Port = PortStart;
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| 321 | pRange->cPorts = cPorts;
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| 322 | pRange->pvUser = pvUser;
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| 323 | pRange->pfnOutCallback = pfnOutCallback;
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| 324 | pRange->pfnInCallback = pfnInCallback;
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| 325 | pRange->pfnOutStrCallback = pfnOutStrCallback;
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| 326 | pRange->pfnInStrCallback = pfnInStrCallback;
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| 327 | #ifdef IN_GC
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| 328 | pRange->pDevIns = pDevIns;
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| 329 | pRange->pszDesc = MMHyperGC2HC(pVM, (void *)pszDesc);
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| 330 | #else
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| 331 | pRange->pDevIns = MMHyperHC2GC(pVM, pDevIns);
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| 332 | pRange->pszDesc = pszDesc;
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| 333 | #endif
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| 334 |
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| 335 | /*
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| 336 | * Insert it.
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| 337 | */
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| 338 | if (RTAvlroIOPortInsert(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeGC, &pRange->Core))
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| 339 | return VINF_SUCCESS;
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| 340 |
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| 341 | /* conflict. */
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| 342 | AssertMsgFailed(("Port range %#x-%#x (%s) conflicts with existing range(s)!\n", PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
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| 343 | MMHyperFree(pVM, pRange);
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| 344 | rc = VERR_IOM_IOPORT_RANGE_CONFLICT;
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| 345 | }
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| 346 |
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| 347 | return rc;
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| 348 | }
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| 349 |
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| 350 |
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| 351 | /**
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| 352 | * Registers a Memory Mapped I/O GC handler range.
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| 353 | *
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| 354 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
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| 355 | * using IOMMMIORegisterR3() before calling this function.
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| 356 | *
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| 357 | *
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| 358 | * @returns VBox status code.
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| 359 | *
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| 360 | * @param pVM VM handle.
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| 361 | * @param pDevIns PDM device instance owning the MMIO range.
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| 362 | * @param GCPhysStart First physical address in the range.
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| 363 | * @param cbRange The size of the range (in bytes).
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| 364 | * @param pvUser User argument for the callbacks.
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| 365 | * @param pfnWriteCallback Pointer to function which is gonna handle Write operations.
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| 366 | * @param pfnReadCallback Pointer to function which is gonna handle Read operations.
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| 367 | * @param pfnFillCallback Pointer to function which is gonna handle Fill/memset operations.
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| 368 | * @param pszDesc Pointer to description string. This must not be freed.
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| 369 | */
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| 370 | IOMDECL(int) IOMMMIORegisterGC(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTGCPTR pvUser,
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| 371 | GCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback, GCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
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| 372 | GCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc)
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| 373 | {
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| 374 | LogFlow(("IOMMMIORegisterGC: pDevIns=%p GCPhysStart=%#x cbRange=%#x pvUser=%VGv pfnWriteCallback=%#x pfnReadCallback=%#x pfnFillCallback=%#x pszDesc=%s\n",
|
|---|
| 375 | pDevIns, GCPhysStart, cbRange, pvUser, pfnWriteCallback, pfnReadCallback, pfnFillCallback, pszDesc));
|
|---|
| 376 |
|
|---|
| 377 | /*
|
|---|
| 378 | * Validate input.
|
|---|
| 379 | */
|
|---|
| 380 | if (!pfnWriteCallback && !pfnReadCallback)
|
|---|
| 381 | {
|
|---|
| 382 | AssertMsgFailed(("No callbacks! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 383 | return VERR_INVALID_PARAMETER;
|
|---|
| 384 | }
|
|---|
| 385 | RTGCPHYS GCPhysLast = GCPhysStart + (cbRange - 1);
|
|---|
| 386 | if (GCPhysLast < GCPhysStart)
|
|---|
| 387 | {
|
|---|
| 388 | AssertMsgFailed(("Wrapped! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 389 | return VERR_IOM_INVALID_MMIO_RANGE;
|
|---|
| 390 | }
|
|---|
| 391 |
|
|---|
| 392 | /*
|
|---|
| 393 | * Check that a ring-3 MMIO range exists.
|
|---|
| 394 | */
|
|---|
| 395 | RTGCPHYS GCPhys = GCPhysStart;
|
|---|
| 396 | while (GCPhys <= GCPhysLast && GCPhys >= GCPhysStart)
|
|---|
| 397 | {
|
|---|
| 398 | PIOMMMIORANGER3 pRange = (PIOMMMIORANGER3)RTAvlroGCPhysRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR3, GCPhys);
|
|---|
| 399 | if (!pRange)
|
|---|
| 400 | {
|
|---|
| 401 | AssertMsgFailed(("No R3 range! GCPhys=%#x %#x LB%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc));
|
|---|
| 402 | return VERR_IOM_NO_HC_MMIO_RANGE;
|
|---|
| 403 | }
|
|---|
| 404 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 405 | #ifndef IN_GC
|
|---|
| 406 | if (pRange->pDevIns != pDevIns)
|
|---|
| 407 | #else
|
|---|
| 408 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 409 | #endif
|
|---|
| 410 | {
|
|---|
| 411 | AssertMsgFailed(("Not owner! GCPhys=%#x %#x LB%#x %s / %#x-%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc,
|
|---|
| 412 | pRange->Core.Key, pRange->Core.KeyLast, MMHyper2HC(pVM, (uintptr_t)pRange->pszDesc)));
|
|---|
| 413 | return VERR_IOM_NOT_MMIO_RANGE_OWNER;
|
|---|
| 414 | }
|
|---|
| 415 | #endif /* !IOM_NO_PDMINS_CHECKS */
|
|---|
| 416 | /* next */
|
|---|
| 417 | Assert(GCPhys <= pRange->Core.KeyLast);
|
|---|
| 418 | GCPhys = pRange->Core.KeyLast + 1;
|
|---|
| 419 | }
|
|---|
| 420 |
|
|---|
| 421 |
|
|---|
| 422 | /*
|
|---|
| 423 | * Allocate new range record and initialize it.
|
|---|
| 424 | */
|
|---|
| 425 | PIOMMMIORANGEGC pRange;
|
|---|
| 426 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 427 | if (VBOX_SUCCESS(rc))
|
|---|
| 428 | {
|
|---|
| 429 | pRange->Core.Key = GCPhysStart;
|
|---|
| 430 | pRange->Core.KeyLast = GCPhysStart + (cbRange - 1);
|
|---|
| 431 | pRange->GCPhys = GCPhysStart;
|
|---|
| 432 | pRange->cbSize = cbRange;
|
|---|
| 433 | pRange->pvUser = pvUser;
|
|---|
| 434 | pRange->pfnReadCallback = pfnReadCallback;
|
|---|
| 435 | pRange->pfnWriteCallback= pfnWriteCallback;
|
|---|
| 436 | pRange->pfnFillCallback = pfnFillCallback;
|
|---|
| 437 | #ifdef IN_GC
|
|---|
| 438 | pRange->pDevIns = pDevIns;
|
|---|
| 439 | pRange->pszDesc = MMHyperGC2HC(pVM, (void *)pszDesc);
|
|---|
| 440 | #else
|
|---|
| 441 | pRange->pDevIns = MMHyperHC2GC(pVM, pDevIns);
|
|---|
| 442 | pRange->pszDesc = pszDesc;
|
|---|
| 443 | #endif
|
|---|
| 444 |
|
|---|
| 445 | /*
|
|---|
| 446 | * Try insert it.
|
|---|
| 447 | */
|
|---|
| 448 | if (RTAvlroGCPhysInsert(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeGC, &pRange->Core))
|
|---|
| 449 | return VINF_SUCCESS;
|
|---|
| 450 |
|
|---|
| 451 | AssertMsgFailed(("Conflict! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 452 | MMHyperFree(pVM, pRange);
|
|---|
| 453 | rc = VERR_IOM_MMIO_RANGE_CONFLICT;
|
|---|
| 454 | }
|
|---|
| 455 |
|
|---|
| 456 | return rc;
|
|---|
| 457 | }
|
|---|
| 458 |
|
|---|
| 459 |
|
|---|
| 460 | /**
|
|---|
| 461 | * Registers a Port IO R0 handler.
|
|---|
| 462 | *
|
|---|
| 463 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
|
|---|
| 464 | * using IOMR3IOPortRegisterR3() before calling this function.
|
|---|
| 465 | *
|
|---|
| 466 | *
|
|---|
| 467 | * @returns VBox status code.
|
|---|
| 468 | *
|
|---|
| 469 | * @param pVM VM handle.
|
|---|
| 470 | * @param pDevIns PDM device instance owning the port range.
|
|---|
| 471 | * @param PortStart First port number in the range.
|
|---|
| 472 | * @param cPorts Number of ports to register.
|
|---|
| 473 | * @param pvUser User argument for the callbacks.
|
|---|
| 474 | * @param pfnOutCallback Pointer to function which is gonna handle OUT operations in GC.
|
|---|
| 475 | * @param pfnInCallback Pointer to function which is gonna handle IN operations in GC.
|
|---|
| 476 | * @param pfnOutStrCallback Pointer to function which is gonna handle OUT operations in GC.
|
|---|
| 477 | * @param pfnInStrCallback Pointer to function which is gonna handle IN operations in GC.
|
|---|
| 478 | * @param pszDesc Pointer to description string. This must not be freed.
|
|---|
| 479 | */
|
|---|
| 480 | IOMDECL(int) IOMIOPortRegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTIOPORT PortStart, RTUINT cPorts, RTR0PTR pvUser,
|
|---|
| 481 | R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback, R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback,
|
|---|
| 482 | R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback, R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback,
|
|---|
| 483 | const char *pszDesc)
|
|---|
| 484 | {
|
|---|
| 485 | LogFlow(("IOMIOPortRegisterR0: pDevIns=%p PortStart=%#x cPorts=%#x pvUser=%VHv pfnOutCallback=%VGv pfnInCallback=%VGv pfnOutStrCallback=%VGv pfnInStrCallback=%VGv pszDesc=%s\n",
|
|---|
| 486 | pDevIns, PortStart, cPorts, pvUser, pfnOutCallback, pfnInCallback, pfnOutStrCallback, pfnInStrCallback, pszDesc));
|
|---|
| 487 |
|
|---|
| 488 | /*
|
|---|
| 489 | * Validate input.
|
|---|
| 490 | */
|
|---|
| 491 | if ( (RTUINT)PortStart + cPorts <= (RTUINT)PortStart
|
|---|
| 492 | || (RTUINT)PortStart + cPorts > 0x10000)
|
|---|
| 493 | {
|
|---|
| 494 | AssertMsgFailed(("Invalid port range %#x-%#x! (%s)\n", PortStart, (RTUINT)PortStart + (cPorts - 1), pszDesc));
|
|---|
| 495 | return VERR_IOM_INVALID_IOPORT_RANGE;
|
|---|
| 496 | }
|
|---|
| 497 | RTIOPORT PortLast = PortStart + (cPorts - 1);
|
|---|
| 498 | if (!pfnOutCallback && !pfnInCallback)
|
|---|
| 499 | {
|
|---|
| 500 | AssertMsgFailed(("Invalid port range %#x-%#x! No callbacks! (%s)\n", PortStart, PortLast, pszDesc));
|
|---|
| 501 | return VERR_INVALID_PARAMETER;
|
|---|
| 502 | }
|
|---|
| 503 |
|
|---|
| 504 | /*
|
|---|
| 505 | * Validate that there are ring-3 ranges for the ports.
|
|---|
| 506 | */
|
|---|
| 507 | RTIOPORT Port = PortStart;
|
|---|
| 508 | while (Port <= PortLast && Port >= PortStart)
|
|---|
| 509 | {
|
|---|
| 510 | PIOMIOPORTRANGER3 pRange = (PIOMIOPORTRANGER3)RTAvlroIOPortRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR3, Port);
|
|---|
| 511 | if (!pRange)
|
|---|
| 512 | {
|
|---|
| 513 | AssertMsgFailed(("No R3! Port=#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 514 | return VERR_IOM_NO_HC_IOPORT_RANGE;
|
|---|
| 515 | }
|
|---|
| 516 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 517 | # ifndef IN_GC
|
|---|
| 518 | if (pRange->pDevIns != pDevIns)
|
|---|
| 519 | # else
|
|---|
| 520 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 521 | # endif
|
|---|
| 522 | {
|
|---|
| 523 | AssertMsgFailed(("Not owner! Port=%#x %#x-%#x! (%s)\n", Port, PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 524 | return VERR_IOM_NOT_IOPORT_RANGE_OWNER;
|
|---|
| 525 | }
|
|---|
| 526 | #endif
|
|---|
| 527 | Port = pRange->Core.KeyLast + 1;
|
|---|
| 528 | }
|
|---|
| 529 |
|
|---|
| 530 | /* Flush the IO port lookup cache */
|
|---|
| 531 | IOMFlushCache(pVM);
|
|---|
| 532 |
|
|---|
| 533 | /*
|
|---|
| 534 | * Allocate new range record and initialize it.
|
|---|
| 535 | */
|
|---|
| 536 | PIOMIOPORTRANGER0 pRange;
|
|---|
| 537 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 538 | if (VBOX_SUCCESS(rc))
|
|---|
| 539 | {
|
|---|
| 540 | pRange->Core.Key = PortStart;
|
|---|
| 541 | pRange->Core.KeyLast = PortLast;
|
|---|
| 542 | pRange->Port = PortStart;
|
|---|
| 543 | pRange->cPorts = cPorts;
|
|---|
| 544 | pRange->pvUser = pvUser;
|
|---|
| 545 | pRange->pfnOutCallback = pfnOutCallback;
|
|---|
| 546 | pRange->pfnInCallback = pfnInCallback;
|
|---|
| 547 | pRange->pfnOutStrCallback = pfnOutStrCallback;
|
|---|
| 548 | pRange->pfnInStrCallback = pfnInStrCallback;
|
|---|
| 549 | #ifdef IN_GC
|
|---|
| 550 | pRange->pDevIns = MMHyperGCToR0(pVM, pDevIns);
|
|---|
| 551 | pRange->pszDesc = MMHyperGCToR3(pVM, (void *)pszDesc);
|
|---|
| 552 | #elif defined(IN_RING3)
|
|---|
| 553 | pRange->pDevIns = MMHyperR3ToR0(pVM, pDevIns);
|
|---|
| 554 | pRange->pszDesc = pszDesc;
|
|---|
| 555 | #else
|
|---|
| 556 | pRange->pDevIns = pDevIns;
|
|---|
| 557 | pRange->pszDesc = MMHyperR0ToR3(pVM, (RTR0PTR)pszDesc);
|
|---|
| 558 | #endif
|
|---|
| 559 |
|
|---|
| 560 | /*
|
|---|
| 561 | * Insert it.
|
|---|
| 562 | */
|
|---|
| 563 | if (RTAvlroIOPortInsert(&pVM->iom.s.CTXSUFF(pTrees)->IOPortTreeR0, &pRange->Core))
|
|---|
| 564 | return VINF_SUCCESS;
|
|---|
| 565 |
|
|---|
| 566 | /* conflict. */
|
|---|
| 567 | AssertMsgFailed(("Port range %#x-%#x (%s) conflicts with existing range(s)!\n", PortStart, (unsigned)PortStart + cPorts - 1, pszDesc));
|
|---|
| 568 | MMHyperFree(pVM, pRange);
|
|---|
| 569 | rc = VERR_IOM_IOPORT_RANGE_CONFLICT;
|
|---|
| 570 | }
|
|---|
| 571 |
|
|---|
| 572 | return rc;
|
|---|
| 573 | }
|
|---|
| 574 |
|
|---|
| 575 |
|
|---|
| 576 | /**
|
|---|
| 577 | * Registers a Memory Mapped I/O R0 handler range.
|
|---|
| 578 | *
|
|---|
| 579 | * This API is called by PDM on behalf of a device. Devices must first register ring-3 ranges
|
|---|
| 580 | * using IOMMR3MIORegisterHC() before calling this function.
|
|---|
| 581 | *
|
|---|
| 582 | *
|
|---|
| 583 | * @returns VBox status code.
|
|---|
| 584 | *
|
|---|
| 585 | * @param pVM VM handle.
|
|---|
| 586 | * @param pDevIns PDM device instance owning the MMIO range.
|
|---|
| 587 | * @param GCPhysStart First physical address in the range.
|
|---|
| 588 | * @param cbRange The size of the range (in bytes).
|
|---|
| 589 | * @param pvUser User argument for the callbacks.
|
|---|
| 590 | * @param pfnWriteCallback Pointer to function which is gonna handle Write operations.
|
|---|
| 591 | * @param pfnReadCallback Pointer to function which is gonna handle Read operations.
|
|---|
| 592 | * @param pfnFillCallback Pointer to function which is gonna handle Fill/memset operations.
|
|---|
| 593 | * @param pszDesc Pointer to description string. This must not be freed.
|
|---|
| 594 | */
|
|---|
| 595 | IOMDECL(int) IOMMMIORegisterR0(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhysStart, RTUINT cbRange, RTR0PTR pvUser,
|
|---|
| 596 | R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallback, R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallback,
|
|---|
| 597 | R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallback, const char *pszDesc)
|
|---|
| 598 | {
|
|---|
| 599 | LogFlow(("IOMMMIORegisterR0: pDevIns=%p GCPhysStart=%#x cbRange=%#x pvUser=%VHv pfnWriteCallback=%#x pfnReadCallback=%#x pfnFillCallback=%#x pszDesc=%s\n",
|
|---|
| 600 | pDevIns, GCPhysStart, cbRange, pvUser, pfnWriteCallback, pfnReadCallback, pfnFillCallback, pszDesc));
|
|---|
| 601 |
|
|---|
| 602 | /*
|
|---|
| 603 | * Validate input.
|
|---|
| 604 | */
|
|---|
| 605 | if (!pfnWriteCallback && !pfnReadCallback)
|
|---|
| 606 | {
|
|---|
| 607 | AssertMsgFailed(("No callbacks! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 608 | return VERR_INVALID_PARAMETER;
|
|---|
| 609 | }
|
|---|
| 610 | RTGCPHYS GCPhysLast = GCPhysStart + (cbRange - 1);
|
|---|
| 611 | if (GCPhysLast < GCPhysStart)
|
|---|
| 612 | {
|
|---|
| 613 | AssertMsgFailed(("Wrapped! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 614 | return VERR_IOM_INVALID_MMIO_RANGE;
|
|---|
| 615 | }
|
|---|
| 616 |
|
|---|
| 617 | /*
|
|---|
| 618 | * Check that a ring-3 MMIO range exists.
|
|---|
| 619 | */
|
|---|
| 620 | RTGCPHYS GCPhys = GCPhysStart;
|
|---|
| 621 | while (GCPhys <= GCPhysLast && GCPhys >= GCPhysStart)
|
|---|
| 622 | {
|
|---|
| 623 | PIOMMMIORANGER3 pRange = (PIOMMMIORANGER3)RTAvlroGCPhysRangeGet(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR3, GCPhys);
|
|---|
| 624 | if (!pRange)
|
|---|
| 625 | {
|
|---|
| 626 | AssertMsgFailed(("No R3 range! GCPhys=%#x %#x LB%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc));
|
|---|
| 627 | return VERR_IOM_NO_HC_MMIO_RANGE;
|
|---|
| 628 | }
|
|---|
| 629 | #ifndef IOM_NO_PDMINS_CHECKS
|
|---|
| 630 | # ifndef IN_GC
|
|---|
| 631 | if (pRange->pDevIns != pDevIns)
|
|---|
| 632 | # else
|
|---|
| 633 | if (pRange->pDevIns != MMHyperGC2HC(pVM, pDevIns))
|
|---|
| 634 | # endif
|
|---|
| 635 | {
|
|---|
| 636 | AssertMsgFailed(("Not owner! GCPhys=%#x %#x LB%#x %s / %#x-%#x %s\n", GCPhys, GCPhysStart, cbRange, pszDesc,
|
|---|
| 637 | pRange->Core.Key, pRange->Core.KeyLast, MMHyper2HC(pVM, (uintptr_t)pRange->pszDesc)));
|
|---|
| 638 | return VERR_IOM_NOT_MMIO_RANGE_OWNER;
|
|---|
| 639 | }
|
|---|
| 640 | #endif /* !IOM_NO_PDMINS_CHECKS */
|
|---|
| 641 | /* next */
|
|---|
| 642 | Assert(GCPhys <= pRange->Core.KeyLast);
|
|---|
| 643 | GCPhys = pRange->Core.KeyLast + 1;
|
|---|
| 644 | }
|
|---|
| 645 |
|
|---|
| 646 |
|
|---|
| 647 | /*
|
|---|
| 648 | * Allocate new range record and initialize it.
|
|---|
| 649 | */
|
|---|
| 650 | PIOMMMIORANGER0 pRange;
|
|---|
| 651 | int rc = MMHyperAlloc(pVM, sizeof(*pRange), 0, MM_TAG_IOM, (void **)&pRange);
|
|---|
| 652 | if (VBOX_SUCCESS(rc))
|
|---|
| 653 | {
|
|---|
| 654 | pRange->Core.Key = GCPhysStart;
|
|---|
| 655 | pRange->Core.KeyLast = GCPhysStart + (cbRange - 1);
|
|---|
| 656 | pRange->GCPhys = GCPhysStart;
|
|---|
| 657 | pRange->cbSize = cbRange;
|
|---|
| 658 | pRange->pvUser = pvUser;
|
|---|
| 659 | pRange->pfnReadCallback = pfnReadCallback;
|
|---|
| 660 | pRange->pfnWriteCallback= pfnWriteCallback;
|
|---|
| 661 | pRange->pfnFillCallback = pfnFillCallback;
|
|---|
| 662 | #ifdef IN_GC
|
|---|
| 663 | pRange->pDevIns = MMHyperGCToR0(pVM, pDevIns);
|
|---|
| 664 | pRange->pszDesc = MMHyperGCToR3(pVM, (void *)pszDesc);
|
|---|
| 665 | #elif defined(IN_RING3)
|
|---|
| 666 | pRange->pDevIns = MMHyperR3ToR0(pVM, pDevIns);
|
|---|
| 667 | pRange->pszDesc = pszDesc;
|
|---|
| 668 | #else
|
|---|
| 669 | pRange->pDevIns = pDevIns;
|
|---|
| 670 | pRange->pszDesc = MMHyperR0ToR3(pVM, (RTR0PTR)pszDesc);
|
|---|
| 671 | #endif
|
|---|
| 672 |
|
|---|
| 673 | /*
|
|---|
| 674 | * Try insert it.
|
|---|
| 675 | */
|
|---|
| 676 | if (RTAvlroGCPhysInsert(&pVM->iom.s.CTXSUFF(pTrees)->MMIOTreeR0, &pRange->Core))
|
|---|
| 677 | return VINF_SUCCESS;
|
|---|
| 678 |
|
|---|
| 679 | AssertMsgFailed(("Conflict! %#x LB%#x %s\n", GCPhysStart, cbRange, pszDesc));
|
|---|
| 680 | MMHyperFree(pVM, pRange);
|
|---|
| 681 | rc = VERR_IOM_MMIO_RANGE_CONFLICT;
|
|---|
| 682 | }
|
|---|
| 683 |
|
|---|
| 684 | return rc;
|
|---|
| 685 | }
|
|---|
| 686 |
|
|---|
| 687 |
|
|---|
| 688 | /**
|
|---|
| 689 | * Flushes the IOM port & statistics lookup cache
|
|---|
| 690 | *
|
|---|
| 691 | * @param pVM The VM.
|
|---|
| 692 | */
|
|---|
| 693 | IOMDECL(void) IOMFlushCache(PVM pVM)
|
|---|
| 694 | {
|
|---|
| 695 | /*
|
|---|
| 696 | * Caching of port and statistics (saves some time in rep outs/ins instruction emulation)
|
|---|
| 697 | */
|
|---|
| 698 | pVM->iom.s.pRangeLastReadGC = 0;
|
|---|
| 699 | pVM->iom.s.pRangeLastWriteGC = 0;
|
|---|
| 700 | pVM->iom.s.pStatsLastReadGC = 0;
|
|---|
| 701 | pVM->iom.s.pStatsLastWriteGC = 0;
|
|---|
| 702 |
|
|---|
| 703 | pVM->iom.s.pRangeLastReadR3 = 0;
|
|---|
| 704 | pVM->iom.s.pRangeLastWriteR3 = 0;
|
|---|
| 705 | pVM->iom.s.pStatsLastReadR3 = 0;
|
|---|
| 706 | pVM->iom.s.pStatsLastWriteR3 = 0;
|
|---|
| 707 |
|
|---|
| 708 | pVM->iom.s.pRangeLastReadR0 = 0;
|
|---|
| 709 | pVM->iom.s.pRangeLastWriteR0 = 0;
|
|---|
| 710 | pVM->iom.s.pStatsLastReadR0 = 0;
|
|---|
| 711 | pVM->iom.s.pStatsLastWriteR0 = 0;
|
|---|
| 712 | }
|
|---|
| 713 |
|
|---|
| 714 |
|
|---|
| 715 | //#undef LOG_GROUP
|
|---|
| 716 | //#define LOG_GROUP LOG_GROUP_IOM_IOPORT
|
|---|
| 717 |
|
|---|
| 718 | /**
|
|---|
| 719 | * Reads an I/O port register.
|
|---|
| 720 | *
|
|---|
| 721 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 722 | * here are to be treated as internal failure.
|
|---|
| 723 | * @retval VINF_SUCCESS Success.
|
|---|
| 724 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto EM.
|
|---|
| 725 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 726 | *
|
|---|
| 727 | * @param pVM VM handle.
|
|---|
| 728 | * @param Port The port to read.
|
|---|
| 729 | * @param pu32Value Where to store the value read.
|
|---|
| 730 | * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
|
|---|
| 731 | */
|
|---|
| 732 | IOMDECL(int) IOMIOPortRead(PVM pVM, RTIOPORT Port, uint32_t *pu32Value, size_t cbValue)
|
|---|
| 733 | {
|
|---|
| 734 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 735 | /*
|
|---|
| 736 | * Get the statistics record.
|
|---|
| 737 | */
|
|---|
| 738 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastRead);
|
|---|
| 739 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 740 | {
|
|---|
| 741 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 742 | if (pStats)
|
|---|
| 743 | CTXALLSUFF(pVM->iom.s.pStatsLastRead) = pStats;
|
|---|
| 744 | }
|
|---|
| 745 | #endif
|
|---|
| 746 |
|
|---|
| 747 | /*
|
|---|
| 748 | * Get handler for current context.
|
|---|
| 749 | */
|
|---|
| 750 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastRead);
|
|---|
| 751 | if ( !pRange
|
|---|
| 752 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 753 | {
|
|---|
| 754 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 755 | if (pRange)
|
|---|
| 756 | CTXALLSUFF(pVM->iom.s.pRangeLastRead) = pRange;
|
|---|
| 757 | }
|
|---|
| 758 | #ifdef IN_GC
|
|---|
| 759 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange)); /** @todo r=bird: there is a macro for this which skips the #if'ing. */
|
|---|
| 760 | #endif
|
|---|
| 761 |
|
|---|
| 762 | if (pRange)
|
|---|
| 763 | {
|
|---|
| 764 | /*
|
|---|
| 765 | * Found a range.
|
|---|
| 766 | */
|
|---|
| 767 | #ifndef IN_RING3
|
|---|
| 768 | if (!pRange->pfnInCallback)
|
|---|
| 769 | {
|
|---|
| 770 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 771 | if (pStats)
|
|---|
| 772 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 773 | # endif
|
|---|
| 774 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 775 | }
|
|---|
| 776 | #endif
|
|---|
| 777 | /* call the device. */
|
|---|
| 778 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 779 | if (pStats)
|
|---|
| 780 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 781 | #endif
|
|---|
| 782 | int rc = pRange->pfnInCallback(pRange->pDevIns, pRange->pvUser, Port, pu32Value, cbValue);
|
|---|
| 783 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 784 | if (pStats)
|
|---|
| 785 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 786 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 787 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 788 | # ifndef IN_RING3
|
|---|
| 789 | else if (rc == VINF_IOM_HC_IOPORT_READ && pStats)
|
|---|
| 790 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 791 | # endif
|
|---|
| 792 | #endif
|
|---|
| 793 | if (rc == VERR_IOM_IOPORT_UNUSED)
|
|---|
| 794 | {
|
|---|
| 795 | /* make return value */
|
|---|
| 796 | rc = VINF_SUCCESS;
|
|---|
| 797 | switch (cbValue)
|
|---|
| 798 | {
|
|---|
| 799 | case 1: *(uint8_t *)pu32Value = 0xff; break;
|
|---|
| 800 | case 2: *(uint16_t *)pu32Value = 0xffff; break;
|
|---|
| 801 | case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
|
|---|
| 802 | default:
|
|---|
| 803 | AssertMsgFailed(("Invalid I/O port size %d. Port=%d\n", cbValue, Port));
|
|---|
| 804 | return VERR_IOM_INVALID_IOPORT_SIZE;
|
|---|
| 805 | }
|
|---|
| 806 | }
|
|---|
| 807 | Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=%Vrc\n", Port, *pu32Value, cbValue, rc));
|
|---|
| 808 | return rc;
|
|---|
| 809 | }
|
|---|
| 810 |
|
|---|
| 811 | #ifndef IN_RING3
|
|---|
| 812 | /*
|
|---|
| 813 | * Handler in ring-3?
|
|---|
| 814 | */
|
|---|
| 815 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 816 | if (pRangeR3)
|
|---|
| 817 | {
|
|---|
| 818 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 819 | if (pStats)
|
|---|
| 820 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 821 | # endif
|
|---|
| 822 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 823 | }
|
|---|
| 824 | #endif
|
|---|
| 825 |
|
|---|
| 826 | /*
|
|---|
| 827 | * Ok, no handler for this port.
|
|---|
| 828 | */
|
|---|
| 829 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 830 | if (pStats)
|
|---|
| 831 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 832 | else
|
|---|
| 833 | {
|
|---|
| 834 | # ifndef IN_RING3
|
|---|
| 835 | /* Ring-3 will have to create the statistics record. */
|
|---|
| 836 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 837 | # else
|
|---|
| 838 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 839 | if (pStats)
|
|---|
| 840 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 841 | # endif
|
|---|
| 842 | }
|
|---|
| 843 | #endif
|
|---|
| 844 |
|
|---|
| 845 | /* make return value */
|
|---|
| 846 | switch (cbValue)
|
|---|
| 847 | {
|
|---|
| 848 | case 1: *(uint8_t *)pu32Value = 0xff; break;
|
|---|
| 849 | case 2: *(uint16_t *)pu32Value = 0xffff; break;
|
|---|
| 850 | case 4: *(uint32_t *)pu32Value = 0xffffffff; break;
|
|---|
| 851 | default:
|
|---|
| 852 | AssertMsgFailed(("Invalid I/O port size %d. Port=%d\n", cbValue, Port));
|
|---|
| 853 | return VERR_IOM_INVALID_IOPORT_SIZE;
|
|---|
| 854 | }
|
|---|
| 855 | Log3(("IOMIOPortRead: Port=%RTiop *pu32=%08RX32 cb=%d rc=VINF_SUCCESS\n", Port, *pu32Value, cbValue));
|
|---|
| 856 | return VINF_SUCCESS;
|
|---|
| 857 | }
|
|---|
| 858 |
|
|---|
| 859 |
|
|---|
| 860 | /**
|
|---|
| 861 | * Reads the string buffer of an I/O port register.
|
|---|
| 862 | *
|
|---|
| 863 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 864 | * here are to be treated as internal failure.
|
|---|
| 865 | * @retval VINF_SUCCESS Success.
|
|---|
| 866 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto EM.
|
|---|
| 867 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 868 | *
|
|---|
| 869 | * @param pVM VM handle.
|
|---|
| 870 | * @param Port The port to read.
|
|---|
| 871 | * @param pGCPtrDst Pointer to the destination buffer (GC, incremented appropriately).
|
|---|
| 872 | * @param pcTransfers Pointer to the number of transfer units to read, on return remaining transfer units.
|
|---|
| 873 | * @param cb Size of the transfer unit (1, 2 or 4 bytes).
|
|---|
| 874 | * */
|
|---|
| 875 | IOMDECL(int) IOMIOPortReadString(PVM pVM, RTIOPORT Port, PRTGCPTR pGCPtrDst, PRTGCUINTREG pcTransfers, unsigned cb)
|
|---|
| 876 | {
|
|---|
| 877 | #ifdef LOG_ENABLED
|
|---|
| 878 | const RTGCUINTREG cTransfers = *pcTransfers;
|
|---|
| 879 | #endif
|
|---|
| 880 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 881 | /*
|
|---|
| 882 | * Get the statistics record.
|
|---|
| 883 | */
|
|---|
| 884 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastRead);
|
|---|
| 885 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 886 | {
|
|---|
| 887 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 888 | if (pStats)
|
|---|
| 889 | CTXALLSUFF(pVM->iom.s.pStatsLastRead) = pStats;
|
|---|
| 890 | }
|
|---|
| 891 | #endif
|
|---|
| 892 |
|
|---|
| 893 | /*
|
|---|
| 894 | * Get handler for current context.
|
|---|
| 895 | */
|
|---|
| 896 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastRead);
|
|---|
| 897 | if ( !pRange
|
|---|
| 898 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 899 | {
|
|---|
| 900 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 901 | if (pRange)
|
|---|
| 902 | CTXALLSUFF(pVM->iom.s.pRangeLastRead) = pRange;
|
|---|
| 903 | }
|
|---|
| 904 | #ifdef IN_GC
|
|---|
| 905 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange)); /** @todo r=bird: there is a macro for this which skips the #if'ing. */
|
|---|
| 906 | #endif
|
|---|
| 907 |
|
|---|
| 908 | if (pRange)
|
|---|
| 909 | {
|
|---|
| 910 | /*
|
|---|
| 911 | * Found a range.
|
|---|
| 912 | */
|
|---|
| 913 | #ifndef IN_RING3
|
|---|
| 914 | if (!pRange->pfnInStrCallback)
|
|---|
| 915 | {
|
|---|
| 916 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 917 | if (pStats)
|
|---|
| 918 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 919 | # endif
|
|---|
| 920 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 921 | }
|
|---|
| 922 | #endif
|
|---|
| 923 | /* call the device. */
|
|---|
| 924 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 925 | if (pStats)
|
|---|
| 926 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 927 | #endif
|
|---|
| 928 |
|
|---|
| 929 | int rc = pRange->pfnInStrCallback(pRange->pDevIns, pRange->pvUser, Port, pGCPtrDst, pcTransfers, cb);
|
|---|
| 930 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 931 | if (pStats)
|
|---|
| 932 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfIn), a);
|
|---|
| 933 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 934 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 935 | # ifndef IN_RING3
|
|---|
| 936 | else if (rc == VINF_IOM_HC_IOPORT_READ && pStats)
|
|---|
| 937 | STAM_COUNTER_INC(&pStats->CTXALLMID(In, ToR3));
|
|---|
| 938 | # endif
|
|---|
| 939 | #endif
|
|---|
| 940 | Log3(("IOMIOPortReadStr: Port=%RTiop pGCPtrDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=%Vrc\n",
|
|---|
| 941 | Port, pGCPtrDst, pcTransfers, cTransfers, *pcTransfers, cb, rc));
|
|---|
| 942 | return rc;
|
|---|
| 943 | }
|
|---|
| 944 |
|
|---|
| 945 | #ifndef IN_RING3
|
|---|
| 946 | /*
|
|---|
| 947 | * Handler in ring-3?
|
|---|
| 948 | */
|
|---|
| 949 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 950 | if (pRangeR3)
|
|---|
| 951 | {
|
|---|
| 952 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 953 | if (pStats)
|
|---|
| 954 | STAM_COUNTER_INC(&pStats->CTXALLMID(In,ToR3));
|
|---|
| 955 | # endif
|
|---|
| 956 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 957 | }
|
|---|
| 958 | #endif
|
|---|
| 959 |
|
|---|
| 960 | /*
|
|---|
| 961 | * Ok, no handler for this port.
|
|---|
| 962 | */
|
|---|
| 963 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 964 | if (pStats)
|
|---|
| 965 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 966 | else
|
|---|
| 967 | {
|
|---|
| 968 | # ifndef IN_RING3
|
|---|
| 969 | /* Ring-3 will have to create the statistics record. */
|
|---|
| 970 | return VINF_IOM_HC_IOPORT_READ;
|
|---|
| 971 | # else
|
|---|
| 972 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 973 | if (pStats)
|
|---|
| 974 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(In));
|
|---|
| 975 | # endif
|
|---|
| 976 | }
|
|---|
| 977 | #endif
|
|---|
| 978 |
|
|---|
| 979 | Log3(("IOMIOPortReadStr: Port=%RTiop pGCPtrDst=%p pcTransfer=%p:{%#x->%#x} cb=%d rc=VINF_SUCCESS\n",
|
|---|
| 980 | Port, pGCPtrDst, pcTransfers, cTransfers, *pcTransfers, cb));
|
|---|
| 981 | return VINF_SUCCESS;
|
|---|
| 982 | }
|
|---|
| 983 |
|
|---|
| 984 |
|
|---|
| 985 | /**
|
|---|
| 986 | * Writes to an I/O port register.
|
|---|
| 987 | *
|
|---|
| 988 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 989 | * here are to be treated as internal failure.
|
|---|
| 990 | * @retval VINF_SUCCESS Success.
|
|---|
| 991 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto EM.
|
|---|
| 992 | * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
|
|---|
| 993 | *
|
|---|
| 994 | * @param pVM VM handle.
|
|---|
| 995 | * @param Port The port to write to.
|
|---|
| 996 | * @param u32Value The value to write.
|
|---|
| 997 | * @param cbValue The size of the register to read in bytes. 1, 2 or 4 bytes.
|
|---|
| 998 | */
|
|---|
| 999 | IOMDECL(int) IOMIOPortWrite(PVM pVM, RTIOPORT Port, uint32_t u32Value, size_t cbValue)
|
|---|
| 1000 | {
|
|---|
| 1001 | /** @todo bird: When I get time, I'll remove the GC tree and link the GC entries to the ring-3 node. */
|
|---|
| 1002 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1003 | /*
|
|---|
| 1004 | * Find the statistics record.
|
|---|
| 1005 | */
|
|---|
| 1006 | PIOMIOPORTSTATS pStats = CTXALLSUFF(pVM->iom.s.pStatsLastWrite);
|
|---|
| 1007 | if (!pStats || pStats->Core.Key != Port)
|
|---|
| 1008 | {
|
|---|
| 1009 | pStats = (PIOMIOPORTSTATS)RTAvloIOPortGet(&pVM->iom.s.CTXSUFF(pTrees)->IOPortStatTree, Port);
|
|---|
| 1010 | if (pStats)
|
|---|
| 1011 | CTXALLSUFF(pVM->iom.s.pStatsLastWrite) = pStats;
|
|---|
| 1012 | }
|
|---|
| 1013 | #endif
|
|---|
| 1014 |
|
|---|
| 1015 | /*
|
|---|
| 1016 | * Get handler for current context.
|
|---|
| 1017 | */
|
|---|
| 1018 | CTXALLSUFF(PIOMIOPORTRANGE) pRange = CTXALLSUFF(pVM->iom.s.pRangeLastWrite);
|
|---|
| 1019 | if ( !pRange
|
|---|
| 1020 | || (unsigned)Port - (unsigned)pRange->Port >= (unsigned)pRange->cPorts)
|
|---|
| 1021 | {
|
|---|
| 1022 | pRange = iomIOPortGetRange(&pVM->iom.s, Port);
|
|---|
| 1023 | if (pRange)
|
|---|
| 1024 | CTXALLSUFF(pVM->iom.s.pRangeLastWrite) = pRange;
|
|---|
| 1025 | }
|
|---|
| 1026 | #ifdef IN_GC
|
|---|
| 1027 | Assert(!pRange || MMHyperIsInsideArea(pVM, pRange));
|
|---|
| 1028 | #endif
|
|---|
| 1029 |
|
|---|
| 1030 | if (pRange)
|
|---|
| 1031 | {
|
|---|
| 1032 | /*
|
|---|
| 1033 | * Found a range.
|
|---|
| 1034 | */
|
|---|
| 1035 | #ifndef IN_RING3
|
|---|
| 1036 | if (!pRange->pfnOutCallback)
|
|---|
| 1037 | {
|
|---|
| 1038 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1039 | if (pStats)
|
|---|
| 1040 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1041 | # endif
|
|---|
| 1042 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1043 | }
|
|---|
| 1044 | #endif
|
|---|
| 1045 | /* call the device. */
|
|---|
| 1046 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1047 | if (pStats)
|
|---|
| 1048 | STAM_PROFILE_ADV_START(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1049 | #endif
|
|---|
| 1050 | int rc = pRange->pfnOutCallback(pRange->pDevIns, pRange->pvUser, Port, u32Value, cbValue);
|
|---|
| 1051 |
|
|---|
| 1052 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1053 | if (pStats)
|
|---|
| 1054 | STAM_PROFILE_ADV_STOP(&pStats->CTXALLSUFF(ProfOut), a);
|
|---|
| 1055 | if (rc == VINF_SUCCESS && pStats)
|
|---|
| 1056 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1057 | # ifndef IN_RING3
|
|---|
| 1058 | else if (rc == VINF_IOM_HC_IOPORT_WRITE && pStats)
|
|---|
| 1059 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out, ToR3));
|
|---|
| 1060 | # endif
|
|---|
| 1061 | #endif
|
|---|
| 1062 | Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d rc=%Vrc\n", Port, u32Value, cbValue, rc));
|
|---|
| 1063 | return rc;
|
|---|
| 1064 | }
|
|---|
| 1065 |
|
|---|
| 1066 | #ifndef IN_RING3
|
|---|
| 1067 | /*
|
|---|
| 1068 | * Handler in ring-3?
|
|---|
| 1069 | */
|
|---|
| 1070 | PIOMIOPORTRANGER3 pRangeR3 = iomIOPortGetRangeHC(&pVM->iom.s, Port);
|
|---|
| 1071 | if (pRangeR3)
|
|---|
| 1072 | {
|
|---|
| 1073 | # ifdef VBOX_WITH_STATISTICS
|
|---|
| 1074 | if (pStats)
|
|---|
| 1075 | STAM_COUNTER_INC(&pStats->CTXALLMID(Out,ToR3));
|
|---|
| 1076 | # endif
|
|---|
| 1077 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1078 | }
|
|---|
| 1079 | #endif
|
|---|
| 1080 |
|
|---|
| 1081 | /*
|
|---|
| 1082 | * Ok, no handler for that port.
|
|---|
| 1083 | */
|
|---|
| 1084 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1085 | /* statistics. */
|
|---|
| 1086 | if (pStats)
|
|---|
| 1087 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1088 | else
|
|---|
| 1089 | {
|
|---|
| 1090 | # ifndef IN_RING3
|
|---|
| 1091 | /* R3 will have to create the statistics record. */
|
|---|
| 1092 | return VINF_IOM_HC_IOPORT_WRITE;
|
|---|
| 1093 | # else
|
|---|
| 1094 | pStats = iomr3IOPortStatsCreate(pVM, Port, NULL);
|
|---|
| 1095 | if (pStats)
|
|---|
| 1096 | STAM_COUNTER_INC(&pStats->CTXALLSUFF(Out));
|
|---|
| 1097 | # endif
|
|---|
| 1098 | }
|
|---|
| 1099 | #endif
|
|---|
| 1100 | Log3(("IOMIOPortWrite: Port=%RTiop u32=%08RX32 cb=%d nop\n", Port, u32Value, cbValue));
|
|---|
| 1101 | return VINF_SUCCESS;
|
|---|
| 1102 | }
|
|---|
| 1103 |
|
|---|
| 1104 |
|
|---|
| 1105 | /**
|
|---|
| 1106 | * Writes the string buffer of an I/O port register.
|
|---|
| 1107 | *
|
|---|
| 1108 | * @returns Strict VBox status code. Informational status codes other than the one documented
|
|---|
| 1109 | * here are to be treated as internal failure.
|
|---|
| 1110 | * @retval VINF_SUCCESS Success.
|
|---|
| 1111 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto 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.
|
|---|
| 1330 | * @retval VINF_SUCCESS Success.
|
|---|
| 1331 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto EM.
|
|---|
| 1332 | * @retval VINF_IOM_HC_IOPORT_READ Defer the read to ring-3. (R0/GC only)
|
|---|
| 1333 | * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
|
|---|
| 1334 | * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
|
|---|
| 1335 | * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
|
|---|
| 1336 | *
|
|---|
| 1337 | * @param pVM The virtual machine (GC pointer ofcourse).
|
|---|
| 1338 | * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
|
|---|
| 1339 | * @param pCpu Disassembler CPU state.
|
|---|
| 1340 | */
|
|---|
| 1341 | IOMDECL(int) IOMInterpretIN(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
|
|---|
| 1342 | {
|
|---|
| 1343 | #ifdef IN_GC
|
|---|
| 1344 | STAM_COUNTER_INC(&pVM->iom.s.StatGCInstIn);
|
|---|
| 1345 | #endif
|
|---|
| 1346 |
|
|---|
| 1347 | /*
|
|---|
| 1348 | * Get port number from second parameter.
|
|---|
| 1349 | * And get the register size from the first parameter.
|
|---|
| 1350 | */
|
|---|
| 1351 | uint32_t uPort = 0;
|
|---|
| 1352 | unsigned cbSize = 0;
|
|---|
| 1353 | bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &uPort, &cbSize);
|
|---|
| 1354 | AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
|
|---|
| 1355 |
|
|---|
| 1356 | cbSize = iomGCGetRegSize(pCpu, &pCpu->param1);
|
|---|
| 1357 | Assert(cbSize > 0);
|
|---|
| 1358 | int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
|
|---|
| 1359 | if (rc == VINF_SUCCESS)
|
|---|
| 1360 | {
|
|---|
| 1361 | /*
|
|---|
| 1362 | * Attemp to read the port.
|
|---|
| 1363 | */
|
|---|
| 1364 | uint32_t u32Data = ~0U;
|
|---|
| 1365 | rc = IOMIOPortRead(pVM, uPort, &u32Data, cbSize);
|
|---|
| 1366 | if ( rc == VINF_SUCCESS
|
|---|
| 1367 | || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
|
|---|
| 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.
|
|---|
| 1389 | * @retval VINF_SUCCESS Success.
|
|---|
| 1390 | * @retval VINF_EM_FIRST-VINF_EM_LAST Success but schedulinging information needs to be passed onto EM.
|
|---|
| 1391 | * @retval VINF_IOM_HC_IOPORT_WRITE Defer the write to ring-3. (R0/GC only)
|
|---|
| 1392 | * @retval VINF_EM_RAW_GUEST_TRAP The exception was left pending. (TRPMRaiseXcptErr)
|
|---|
| 1393 | * @retval VINF_TRPM_XCPT_DISPATCHED The exception was raised and dispatched for raw-mode execution. (TRPMRaiseXcptErr)
|
|---|
| 1394 | * @retval VINF_EM_RESCHEDULE_REM The exception was dispatched and cannot be executed in raw-mode. (TRPMRaiseXcptErr)
|
|---|
| 1395 | *
|
|---|
| 1396 | * @param pVM The virtual machine (GC pointer ofcourse).
|
|---|
| 1397 | * @param pRegFrame Pointer to CPUMCTXCORE guest registers structure.
|
|---|
| 1398 | * @param pCpu Disassembler CPU state.
|
|---|
| 1399 | */
|
|---|
| 1400 | IOMDECL(int) IOMInterpretOUT(PVM pVM, PCPUMCTXCORE pRegFrame, PDISCPUSTATE pCpu)
|
|---|
| 1401 | {
|
|---|
| 1402 | #ifdef IN_GC
|
|---|
| 1403 | STAM_COUNTER_INC(&pVM->iom.s.StatGCInstOut);
|
|---|
| 1404 | #endif
|
|---|
| 1405 |
|
|---|
| 1406 | /*
|
|---|
| 1407 | * Get port number from first parameter.
|
|---|
| 1408 | * And get the register size and value from the second parameter.
|
|---|
| 1409 | */
|
|---|
| 1410 | uint32_t uPort = 0;
|
|---|
| 1411 | unsigned cbSize = 0;
|
|---|
| 1412 | bool fRc = iomGCGetRegImmData(pCpu, &pCpu->param1, pRegFrame, &uPort, &cbSize);
|
|---|
| 1413 | AssertMsg(fRc, ("Failed to get reg/imm port number!\n")); NOREF(fRc);
|
|---|
| 1414 |
|
|---|
| 1415 | int rc = IOMInterpretCheckPortIOAccess(pVM, pRegFrame, uPort, cbSize);
|
|---|
| 1416 | if (rc == VINF_SUCCESS)
|
|---|
| 1417 | {
|
|---|
| 1418 | uint32_t u32Data = 0;
|
|---|
| 1419 | fRc = iomGCGetRegImmData(pCpu, &pCpu->param2, pRegFrame, &u32Data, &cbSize);
|
|---|
| 1420 | AssertMsg(fRc, ("Failed to get reg value!\n")); NOREF(fRc);
|
|---|
| 1421 |
|
|---|
| 1422 | /*
|
|---|
| 1423 | * Attempt to write to the port.
|
|---|
| 1424 | */
|
|---|
| 1425 | rc = IOMIOPortWrite(pVM, uPort, u32Data, cbSize);
|
|---|
| 1426 | AssertMsg(rc == VINF_SUCCESS || rc == VINF_IOM_HC_IOPORT_WRITE || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST) || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1427 | }
|
|---|
| 1428 | else
|
|---|
| 1429 | AssertMsg(rc == VINF_EM_RAW_GUEST_TRAP || rc == VINF_TRPM_XCPT_DISPATCHED || rc == VINF_TRPM_XCPT_DISPATCHED || VBOX_FAILURE(rc), ("%Vrc\n", rc));
|
|---|
| 1430 | return rc;
|
|---|
| 1431 | }
|
|---|
