| 1 | /* $Id: IOMInternal.h 76543 2018-12-30 06:38:55Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IOM - Internal header file.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2017 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef ___IOMInternal_h
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| 19 | #define ___IOMInternal_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | #define IOM_WITH_CRIT_SECT_RW
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| 25 |
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| 26 | #include <VBox/cdefs.h>
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| 27 | #include <VBox/types.h>
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| 28 | #include <VBox/vmm/iom.h>
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| 29 | #include <VBox/vmm/stam.h>
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| 30 | #include <VBox/vmm/pgm.h>
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| 31 | #include <VBox/vmm/pdmcritsect.h>
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| 32 | #ifdef IOM_WITH_CRIT_SECT_RW
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| 33 | # include <VBox/vmm/pdmcritsectrw.h>
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| 34 | #endif
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| 35 | #include <VBox/param.h>
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| 36 | #include <iprt/assert.h>
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| 37 | #include <iprt/avl.h>
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| 38 |
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| 39 |
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| 40 |
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| 41 | /** @defgroup grp_iom_int Internals
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| 42 | * @ingroup grp_iom
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| 43 | * @internal
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| 44 | * @{
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| 45 | */
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| 46 |
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| 47 | /**
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| 48 | * MMIO range descriptor.
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| 49 | */
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| 50 | typedef struct IOMMMIORANGE
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| 51 | {
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| 52 | /** Avl node core with GCPhys as Key and GCPhys + cbSize - 1 as KeyLast. */
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| 53 | AVLROGCPHYSNODECORE Core;
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| 54 | /** Start physical address. */
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| 55 | RTGCPHYS GCPhys;
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| 56 | /** Size of the range. */
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| 57 | RTGCPHYS cb;
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| 58 | /** The reference counter. */
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| 59 | uint32_t volatile cRefs;
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| 60 | /** Flags, see IOMMMIO_FLAGS_XXX. */
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| 61 | uint32_t fFlags;
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| 62 |
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| 63 | /** Pointer to user argument - R0. */
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| 64 | RTR0PTR pvUserR0;
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| 65 | /** Pointer to device instance - R0. */
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| 66 | PPDMDEVINSR0 pDevInsR0;
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| 67 | /** Pointer to write callback function - R0. */
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| 68 | R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackR0;
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| 69 | /** Pointer to read callback function - R0. */
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| 70 | R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackR0;
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| 71 | /** Pointer to fill (memset) callback function - R0. */
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| 72 | R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackR0;
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| 73 |
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| 74 | /** Pointer to user argument - R3. */
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| 75 | RTR3PTR pvUserR3;
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| 76 | /** Pointer to device instance - R3. */
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| 77 | PPDMDEVINSR3 pDevInsR3;
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| 78 | /** Pointer to write callback function - R3. */
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| 79 | R3PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackR3;
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| 80 | /** Pointer to read callback function - R3. */
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| 81 | R3PTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackR3;
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| 82 | /** Pointer to fill (memset) callback function - R3. */
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| 83 | R3PTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackR3;
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| 84 |
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| 85 | /** Description / Name. For easing debugging. */
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| 86 | R3PTRTYPE(const char *) pszDesc;
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| 87 |
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| 88 | /** Pointer to user argument - RC. */
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| 89 | RTRCPTR pvUserRC;
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| 90 | /** Pointer to device instance - RC. */
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| 91 | PPDMDEVINSRC pDevInsRC;
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| 92 | /** Pointer to write callback function - RC. */
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| 93 | RCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackRC;
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| 94 | /** Pointer to read callback function - RC. */
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| 95 | RCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackRC;
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| 96 | /** Pointer to fill (memset) callback function - RC. */
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| 97 | RCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackRC;
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| 98 | #if HC_ARCH_BITS == 64
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| 99 | /** Padding structure length to multiple of 8 bytes. */
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| 100 | RTRCPTR RCPtrPadding;
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| 101 | #endif
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| 102 | } IOMMMIORANGE;
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| 103 | /** Pointer to a MMIO range descriptor, R3 version. */
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| 104 | typedef struct IOMMMIORANGE *PIOMMMIORANGE;
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| 105 |
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| 106 |
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| 107 | /**
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| 108 | * MMIO address statistics. (one address)
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| 109 | *
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| 110 | * This is a simple way of making on demand statistics, however it's a
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| 111 | * bit free with the hypervisor heap memory.
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| 112 | */
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| 113 | typedef struct IOMMMIOSTATS
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| 114 | {
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| 115 | /** Avl node core with the address as Key. */
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| 116 | AVLOGCPHYSNODECORE Core;
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| 117 |
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| 118 | /** Number of accesses (subtract ReadRZToR3 and WriteRZToR3 to get the right
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| 119 | * number). */
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| 120 | STAMCOUNTER Accesses;
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| 121 |
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| 122 | /** Profiling read handler overhead in R3. */
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| 123 | STAMPROFILE ProfReadR3;
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| 124 | /** Profiling write handler overhead in R3. */
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| 125 | STAMPROFILE ProfWriteR3;
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| 126 | /** Counting and profiling reads in R0/RC. */
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| 127 | STAMPROFILE ProfReadRZ;
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| 128 | /** Counting and profiling writes in R0/RC. */
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| 129 | STAMPROFILE ProfWriteRZ;
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| 130 |
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| 131 | /** Number of reads to this address from R0/RC which was serviced in R3. */
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| 132 | STAMCOUNTER ReadRZToR3;
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| 133 | /** Number of writes to this address from R0/RC which was serviced in R3. */
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| 134 | STAMCOUNTER WriteRZToR3;
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| 135 | } IOMMMIOSTATS;
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| 136 | AssertCompileMemberAlignment(IOMMMIOSTATS, Accesses, 8);
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| 137 | /** Pointer to I/O port statistics. */
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| 138 | typedef IOMMMIOSTATS *PIOMMMIOSTATS;
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| 139 |
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| 140 |
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| 141 | /**
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| 142 | * I/O port range descriptor, R3 version.
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| 143 | */
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| 144 | typedef struct IOMIOPORTRANGER3
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| 145 | {
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| 146 | /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
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| 147 | AVLROIOPORTNODECORE Core;
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| 148 | #if HC_ARCH_BITS == 64 && !defined(RT_OS_WINDOWS)
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| 149 | uint32_t u32Alignment; /**< The sizeof(Core) differs. */
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| 150 | #endif
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| 151 | /** Start I/O port address. */
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| 152 | RTIOPORT Port;
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| 153 | /** Size of the range. */
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| 154 | uint16_t cPorts;
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| 155 | /** Pointer to user argument. */
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| 156 | RTR3PTR pvUser;
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| 157 | /** Pointer to the associated device instance. */
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| 158 | R3PTRTYPE(PPDMDEVINS) pDevIns;
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| 159 | /** Pointer to OUT callback function. */
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| 160 | R3PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
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| 161 | /** Pointer to IN callback function. */
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| 162 | R3PTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
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| 163 | /** Pointer to string OUT callback function. */
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| 164 | R3PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
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| 165 | /** Pointer to string IN callback function. */
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| 166 | R3PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
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| 167 | /** Description / Name. For easing debugging. */
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| 168 | R3PTRTYPE(const char *) pszDesc;
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| 169 | } IOMIOPORTRANGER3;
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| 170 | /** Pointer to I/O port range descriptor, R3 version. */
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| 171 | typedef IOMIOPORTRANGER3 *PIOMIOPORTRANGER3;
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| 172 |
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| 173 | /**
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| 174 | * I/O port range descriptor, R0 version.
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| 175 | */
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| 176 | typedef struct IOMIOPORTRANGER0
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| 177 | {
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| 178 | /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
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| 179 | AVLROIOPORTNODECORE Core;
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| 180 | #if HC_ARCH_BITS == 64 && !defined(RT_OS_WINDOWS)
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| 181 | uint32_t u32Alignment; /**< The sizeof(Core) differs. */
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| 182 | #endif
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| 183 | /** Start I/O port address. */
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| 184 | RTIOPORT Port;
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| 185 | /** Size of the range. */
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| 186 | uint16_t cPorts;
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| 187 | /** Pointer to user argument. */
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| 188 | RTR0PTR pvUser;
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| 189 | /** Pointer to the associated device instance. */
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| 190 | R0PTRTYPE(PPDMDEVINS) pDevIns;
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| 191 | /** Pointer to OUT callback function. */
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| 192 | R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
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| 193 | /** Pointer to IN callback function. */
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| 194 | R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
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| 195 | /** Pointer to string OUT callback function. */
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| 196 | R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
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| 197 | /** Pointer to string IN callback function. */
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| 198 | R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
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| 199 | /** Description / Name. For easing debugging. */
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| 200 | R3PTRTYPE(const char *) pszDesc;
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| 201 | } IOMIOPORTRANGER0;
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| 202 | /** Pointer to I/O port range descriptor, R0 version. */
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| 203 | typedef IOMIOPORTRANGER0 *PIOMIOPORTRANGER0;
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| 204 |
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| 205 | /**
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| 206 | * I/O port range descriptor, RC version.
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| 207 | */
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| 208 | typedef struct IOMIOPORTRANGERC
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| 209 | {
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| 210 | /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
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| 211 | AVLROIOPORTNODECORE Core;
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| 212 | /** Start I/O port address. */
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| 213 | RTIOPORT Port;
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| 214 | /** Size of the range. */
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| 215 | uint16_t cPorts;
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| 216 | /** Pointer to user argument. */
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| 217 | RTRCPTR pvUser;
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| 218 | /** Pointer to the associated device instance. */
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| 219 | RCPTRTYPE(PPDMDEVINS) pDevIns;
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| 220 | /** Pointer to OUT callback function. */
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| 221 | RCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
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| 222 | /** Pointer to IN callback function. */
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| 223 | RCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
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| 224 | /** Pointer to string OUT callback function. */
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| 225 | RCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
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| 226 | /** Pointer to string IN callback function. */
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| 227 | RCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
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| 228 | #if HC_ARCH_BITS == 64
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| 229 | RTRCPTR RCPtrAlignment; /**< pszDesc is 8 byte aligned. */
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| 230 | #endif
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| 231 | /** Description / Name. For easing debugging. */
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| 232 | R3PTRTYPE(const char *) pszDesc;
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| 233 | } IOMIOPORTRANGERC;
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| 234 | /** Pointer to I/O port range descriptor, RC version. */
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| 235 | typedef IOMIOPORTRANGERC *PIOMIOPORTRANGERC;
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| 236 |
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| 237 |
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| 238 | /**
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| 239 | * I/O port statistics. (one I/O port)
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| 240 | *
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| 241 | * This is a simple way of making on demand statistics, however it's a
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| 242 | * bit free with the hypervisor heap memory.
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| 243 | */
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| 244 | typedef struct IOMIOPORTSTATS
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| 245 | {
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| 246 | /** Avl node core with the port as Key. */
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| 247 | AVLOIOPORTNODECORE Core;
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| 248 | #if HC_ARCH_BITS != 64 || !defined(RT_OS_WINDOWS)
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| 249 | uint32_t u32Alignment; /**< The sizeof(Core) differs. */
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| 250 | #endif
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| 251 | /** Number of INs to this port from R3. */
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| 252 | STAMCOUNTER InR3;
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| 253 | /** Profiling IN handler overhead in R3. */
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| 254 | STAMPROFILE ProfInR3;
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| 255 | /** Number of OUTs to this port from R3. */
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| 256 | STAMCOUNTER OutR3;
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| 257 | /** Profiling OUT handler overhead in R3. */
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| 258 | STAMPROFILE ProfOutR3;
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| 259 |
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| 260 | /** Number of INs to this port from R0/RC. */
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| 261 | STAMCOUNTER InRZ;
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| 262 | /** Profiling IN handler overhead in R0/RC. */
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| 263 | STAMPROFILE ProfInRZ;
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| 264 | /** Number of INs to this port from R0/RC which was serviced in R3. */
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| 265 | STAMCOUNTER InRZToR3;
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| 266 |
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| 267 | /** Number of OUTs to this port from R0/RC. */
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| 268 | STAMCOUNTER OutRZ;
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| 269 | /** Profiling OUT handler overhead in R0/RC. */
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| 270 | STAMPROFILE ProfOutRZ;
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| 271 | /** Number of OUTs to this port from R0/RC which was serviced in R3. */
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| 272 | STAMCOUNTER OutRZToR3;
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| 273 | } IOMIOPORTSTATS;
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| 274 | AssertCompileMemberAlignment(IOMIOPORTSTATS, InR3, 8);
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| 275 | /** Pointer to I/O port statistics. */
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| 276 | typedef IOMIOPORTSTATS *PIOMIOPORTSTATS;
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| 277 |
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| 278 |
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| 279 | /**
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| 280 | * The IOM trees.
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| 281 | * These are offset based the nodes and root must be in the same
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| 282 | * memory block in HC. The locations of IOM structure and the hypervisor heap
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| 283 | * are quite different in R3, R0 and RC.
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| 284 | */
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| 285 | typedef struct IOMTREES
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| 286 | {
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| 287 | /** Tree containing I/O port range descriptors registered for HC (IOMIOPORTRANGEHC). */
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| 288 | AVLROIOPORTTREE IOPortTreeR3;
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| 289 | /** Tree containing I/O port range descriptors registered for R0 (IOMIOPORTRANGER0). */
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| 290 | AVLROIOPORTTREE IOPortTreeR0;
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| 291 | /** Tree containing I/O port range descriptors registered for RC (IOMIOPORTRANGERC). */
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| 292 | AVLROIOPORTTREE IOPortTreeRC;
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| 293 |
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| 294 | /** Tree containing the MMIO range descriptors (IOMMMIORANGE). */
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| 295 | AVLROGCPHYSTREE MMIOTree;
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| 296 |
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| 297 | /** Tree containing I/O port statistics (IOMIOPORTSTATS). */
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| 298 | AVLOIOPORTTREE IOPortStatTree;
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| 299 | /** Tree containing MMIO statistics (IOMMMIOSTATS). */
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| 300 | AVLOGCPHYSTREE MmioStatTree;
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| 301 | } IOMTREES;
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| 302 | /** Pointer to the IOM trees. */
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| 303 | typedef IOMTREES *PIOMTREES;
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| 304 |
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| 305 |
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| 306 | /**
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| 307 | * Converts an IOM pointer into a VM pointer.
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| 308 | * @returns Pointer to the VM structure the PGM is part of.
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| 309 | * @param pIOM Pointer to IOM instance data.
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| 310 | */
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| 311 | #define IOM2VM(pIOM) ( (PVM)((char*)pIOM - pIOM->offVM) )
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| 312 |
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| 313 | /**
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| 314 | * IOM Data (part of VM)
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| 315 | */
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| 316 | typedef struct IOM
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| 317 | {
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| 318 | /** Offset to the VM structure. */
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| 319 | RTINT offVM;
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| 320 |
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| 321 | /** Pointer to the trees - RC ptr. */
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| 322 | RCPTRTYPE(PIOMTREES) pTreesRC;
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| 323 | /** Pointer to the trees - R3 ptr. */
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| 324 | R3PTRTYPE(PIOMTREES) pTreesR3;
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| 325 | /** Pointer to the trees - R0 ptr. */
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| 326 | R0PTRTYPE(PIOMTREES) pTreesR0;
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| 327 |
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| 328 | /** MMIO physical access handler type. */
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| 329 | PGMPHYSHANDLERTYPE hMmioHandlerType;
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| 330 | uint32_t u32Padding;
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| 331 |
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| 332 | /** Lock serializing EMT access to IOM. */
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| 333 | #ifdef IOM_WITH_CRIT_SECT_RW
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| 334 | PDMCRITSECTRW CritSect;
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| 335 | #else
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| 336 | PDMCRITSECT CritSect;
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| 337 | #endif
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| 338 |
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| 339 | /** @name I/O Port statistics.
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| 340 | * @{ */
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| 341 | STAMCOUNTER StatInstIn;
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| 342 | STAMCOUNTER StatInstOut;
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| 343 | STAMCOUNTER StatInstIns;
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| 344 | STAMCOUNTER StatInstOuts;
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| 345 | /** @} */
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| 346 |
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| 347 | /** @name MMIO statistics.
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| 348 | * @{ */
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| 349 | STAMPROFILE StatRZMMIOHandler;
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| 350 | STAMCOUNTER StatRZMMIOFailures;
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| 351 |
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| 352 | STAMPROFILE StatRZInstMov;
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| 353 | STAMPROFILE StatRZInstCmp;
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| 354 | STAMPROFILE StatRZInstAnd;
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| 355 | STAMPROFILE StatRZInstOr;
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| 356 | STAMPROFILE StatRZInstXor;
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| 357 | STAMPROFILE StatRZInstBt;
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| 358 | STAMPROFILE StatRZInstTest;
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| 359 | STAMPROFILE StatRZInstXchg;
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| 360 | STAMPROFILE StatRZInstStos;
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| 361 | STAMPROFILE StatRZInstLods;
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| 362 | #ifdef IOM_WITH_MOVS_SUPPORT
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| 363 | STAMPROFILEADV StatRZInstMovs;
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| 364 | STAMPROFILE StatRZInstMovsToMMIO;
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| 365 | STAMPROFILE StatRZInstMovsFromMMIO;
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| 366 | STAMPROFILE StatRZInstMovsMMIO;
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| 367 | #endif
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| 368 | STAMCOUNTER StatRZInstOther;
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| 369 |
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| 370 | STAMCOUNTER StatRZMMIO1Byte;
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| 371 | STAMCOUNTER StatRZMMIO2Bytes;
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| 372 | STAMCOUNTER StatRZMMIO4Bytes;
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| 373 | STAMCOUNTER StatRZMMIO8Bytes;
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| 374 |
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| 375 | STAMCOUNTER StatR3MMIOHandler;
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| 376 |
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| 377 | RTUINT cMovsMaxBytes;
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| 378 | RTUINT cStosMaxBytes;
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| 379 | /** @} */
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| 380 | } IOM;
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| 381 | /** Pointer to IOM instance data. */
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| 382 | typedef IOM *PIOM;
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| 383 |
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| 384 |
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| 385 | /**
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| 386 | * IOM per virtual CPU instance data.
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| 387 | */
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| 388 | typedef struct IOMCPU
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| 389 | {
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| 390 | /** For saving stack space, the disassembler state is allocated here instead of
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| 391 | * on the stack. */
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| 392 | DISCPUSTATE DisState;
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| 393 |
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| 394 | /**
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| 395 | * Pending I/O port write commit (VINF_IOM_R3_IOPORT_COMMIT_WRITE).
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| 396 | *
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| 397 | * This is a converted VINF_IOM_R3_IOPORT_WRITE handler return that lets the
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| 398 | * execution engine commit the instruction and then return to ring-3 to complete
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| 399 | * the I/O port write there. This avoids having to decode the instruction again
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| 400 | * in ring-3.
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| 401 | */
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| 402 | struct
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| 403 | {
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| 404 | /** The value size (0 if not pending). */
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| 405 | uint16_t cbValue;
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| 406 | /** The I/O port. */
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| 407 | RTIOPORT IOPort;
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| 408 | /** The value. */
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| 409 | uint32_t u32Value;
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| 410 | } PendingIOPortWrite;
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| 411 |
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| 412 | /**
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| 413 | * Pending MMIO write commit (VINF_IOM_R3_MMIO_COMMIT_WRITE).
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| 414 | *
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| 415 | * This is a converted VINF_IOM_R3_MMIO_WRITE handler return that lets the
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| 416 | * execution engine commit the instruction, stop any more REPs, and return to
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| 417 | * ring-3 to complete the MMIO write there. The avoid the tedious decoding of
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| 418 | * the instruction again once we're in ring-3, more importantly it allows us to
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| 419 | * correctly deal with read-modify-write instructions like XCHG, OR, and XOR.
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| 420 | */
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| 421 | struct
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| 422 | {
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| 423 | /** Guest physical MMIO address. */
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| 424 | RTGCPHYS GCPhys;
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| 425 | /** The value to write. */
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| 426 | uint8_t abValue[128];
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| 427 | /** The number of bytes to write (0 if nothing pending). */
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| 428 | uint32_t cbValue;
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| 429 | /** Alignment padding. */
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| 430 | uint32_t uAlignmentPadding;
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| 431 | } PendingMmioWrite;
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| 432 |
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| 433 | /** @name Caching of I/O Port and MMIO ranges and statistics.
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| 434 | * (Saves quite some time in rep outs/ins instruction emulation.)
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| 435 | * @{ */
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| 436 | R3PTRTYPE(PIOMIOPORTRANGER3) pRangeLastReadR3;
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| 437 | R3PTRTYPE(PIOMIOPORTRANGER3) pRangeLastWriteR3;
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| 438 | R3PTRTYPE(PIOMIOPORTSTATS) pStatsLastReadR3;
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| 439 | R3PTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteR3;
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| 440 | R3PTRTYPE(PIOMMMIORANGE) pMMIORangeLastR3;
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| 441 | R3PTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastR3;
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| 442 |
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| 443 | R0PTRTYPE(PIOMIOPORTRANGER0) pRangeLastReadR0;
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| 444 | R0PTRTYPE(PIOMIOPORTRANGER0) pRangeLastWriteR0;
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| 445 | R0PTRTYPE(PIOMIOPORTSTATS) pStatsLastReadR0;
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| 446 | R0PTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteR0;
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| 447 | R0PTRTYPE(PIOMMMIORANGE) pMMIORangeLastR0;
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| 448 | R0PTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastR0;
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| 449 |
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| 450 | RCPTRTYPE(PIOMIOPORTRANGERC) pRangeLastReadRC;
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| 451 | RCPTRTYPE(PIOMIOPORTRANGERC) pRangeLastWriteRC;
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| 452 | RCPTRTYPE(PIOMIOPORTSTATS) pStatsLastReadRC;
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| 453 | RCPTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteRC;
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| 454 | RCPTRTYPE(PIOMMMIORANGE) pMMIORangeLastRC;
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| 455 | RCPTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastRC;
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| 456 | /** @} */
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| 457 | } IOMCPU;
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| 458 | /** Pointer to IOM per virtual CPU instance data. */
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| 459 | typedef IOMCPU *PIOMCPU;
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| 460 |
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| 461 |
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| 462 | RT_C_DECLS_BEGIN
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| 463 |
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| 464 | void iomMmioFreeRange(PVM pVM, PIOMMMIORANGE pRange);
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| 465 | #ifdef IN_RING3
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| 466 | PIOMMMIOSTATS iomR3MMIOStatsCreate(PVM pVM, RTGCPHYS GCPhys, const char *pszDesc);
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| 467 | #endif /* IN_RING3 */
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| 468 |
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| 469 | #ifndef IN_RING3
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| 470 | DECLEXPORT(FNPGMRZPHYSPFHANDLER) iomMmioPfHandler;
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| 471 | #endif
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| 472 | PGM_ALL_CB2_PROTO(FNPGMPHYSHANDLER) iomMmioHandler;
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| 473 |
|
|---|
| 474 | /* IOM locking helpers. */
|
|---|
| 475 | #ifdef IOM_WITH_CRIT_SECT_RW
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| 476 | # define IOM_LOCK_EXCL(a_pVM) PDMCritSectRwEnterExcl(&(a_pVM)->iom.s.CritSect, VERR_SEM_BUSY)
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| 477 | # define IOM_UNLOCK_EXCL(a_pVM) do { PDMCritSectRwLeaveExcl(&(a_pVM)->iom.s.CritSect); } while (0)
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|---|
| 478 | # if 0 /* (in case needed for debugging) */
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|---|
| 479 | # define IOM_LOCK_SHARED_EX(a_pVM, a_rcBusy) PDMCritSectRwEnterExcl(&(a_pVM)->iom.s.CritSect, (a_rcBusy))
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| 480 | # define IOM_UNLOCK_SHARED(a_pVM) do { PDMCritSectRwLeaveExcl(&(a_pVM)->iom.s.CritSect); } while (0)
|
|---|
| 481 | # define IOM_IS_SHARED_LOCK_OWNER(a_pVM) PDMCritSectRwIsWriteOwner(&(a_pVM)->iom.s.CritSect)
|
|---|
| 482 | # else
|
|---|
| 483 | # define IOM_LOCK_SHARED_EX(a_pVM, a_rcBusy) PDMCritSectRwEnterShared(&(a_pVM)->iom.s.CritSect, (a_rcBusy))
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| 484 | # define IOM_UNLOCK_SHARED(a_pVM) do { PDMCritSectRwLeaveShared(&(a_pVM)->iom.s.CritSect); } while (0)
|
|---|
| 485 | # define IOM_IS_SHARED_LOCK_OWNER(a_pVM) PDMCritSectRwIsReadOwner(&(a_pVM)->iom.s.CritSect, true)
|
|---|
| 486 | # endif
|
|---|
| 487 | # define IOM_IS_EXCL_LOCK_OWNER(a_pVM) PDMCritSectRwIsWriteOwner(&(a_pVM)->iom.s.CritSect)
|
|---|
| 488 | #else
|
|---|
| 489 | # define IOM_LOCK_EXCL(a_pVM) PDMCritSectEnter(&(a_pVM)->iom.s.CritSect, VERR_SEM_BUSY)
|
|---|
| 490 | # define IOM_UNLOCK_EXCL(a_pVM) do { PDMCritSectLeave(&(a_pVM)->iom.s.CritSect); } while (0)
|
|---|
| 491 | # define IOM_LOCK_SHARED_EX(a_pVM, a_rcBusy) PDMCritSectEnter(&(a_pVM)->iom.s.CritSect, (a_rcBusy))
|
|---|
| 492 | # define IOM_UNLOCK_SHARED(a_pVM) do { PDMCritSectLeave(&(a_pVM)->iom.s.CritSect); } while (0)
|
|---|
| 493 | # define IOM_IS_SHARED_LOCK_OWNER(a_pVM) PDMCritSectIsOwner(&(a_pVM)->iom.s.CritSect)
|
|---|
| 494 | # define IOM_IS_EXCL_LOCK_OWNER(a_pVM) PDMCritSectIsOwner(&(a_pVM)->iom.s.CritSect)
|
|---|
| 495 | #endif
|
|---|
| 496 | #define IOM_LOCK_SHARED(a_pVM) IOM_LOCK_SHARED_EX(a_pVM, VERR_SEM_BUSY)
|
|---|
| 497 |
|
|---|
| 498 |
|
|---|
| 499 | RT_C_DECLS_END
|
|---|
| 500 |
|
|---|
| 501 |
|
|---|
| 502 | #ifdef IN_RING3
|
|---|
| 503 |
|
|---|
| 504 | #endif
|
|---|
| 505 |
|
|---|
| 506 | /** @} */
|
|---|
| 507 |
|
|---|
| 508 | #endif /* !___IOMInternal_h */
|
|---|
| 509 |
|
|---|
