| 1 | /** @file
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| 2 | * PDM - Pluggable Device Manager, Core API.
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| 3 | *
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| 4 | * The 'Core API' has been put in a different header because everyone
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| 5 | * is currently including pdm.h. So, pdm.h is for including all of the
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| 6 | * PDM stuff, while pdmapi.h is for the core stuff.
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| 7 | */
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| 8 |
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| 9 | /*
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| 10 | * Copyright (C) 2006-2007 innotek GmbH
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| 11 | *
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| 12 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 13 | * available from http://www.virtualbox.org. This file is free software;
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| 14 | * you can redistribute it and/or modify it under the terms of the GNU
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| 15 | * General Public License as published by the Free Software Foundation,
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| 16 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 17 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 18 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 19 | *
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| 20 | * If you received this file as part of a commercial VirtualBox
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| 21 | * distribution, then only the terms of your commercial VirtualBox
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| 22 | * license agreement apply instead of the previous paragraph.
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| 23 | */
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| 24 |
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| 25 | #ifndef ___VBox_pdmapi_h
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| 26 | #define ___VBox_pdmapi_h
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| 27 |
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| 28 | #include <VBox/types.h>
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| 29 |
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| 30 | __BEGIN_DECLS
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| 31 |
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| 32 | /** @defgroup grp_pdm The Pluggable Device Manager API
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| 33 | * @{
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| 34 | */
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| 35 |
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| 36 | /**
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| 37 | * Gets the pending interrupt.
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| 38 | *
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| 39 | * @returns VBox status code.
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| 40 | * @param pVM VM handle.
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| 41 | * @param pu8Interrupt Where to store the interrupt on success.
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| 42 | */
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| 43 | PDMDECL(int) PDMGetInterrupt(PVM pVM, uint8_t *pu8Interrupt);
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| 44 |
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| 45 | /**
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| 46 | * Sets the pending ISA interrupt.
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| 47 | *
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| 48 | * @returns VBox status code.
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| 49 | * @param pVM VM handle.
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| 50 | * @param u8Irq The IRQ line.
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| 51 | * @param u8Level The new level. See the PDM_IRQ_LEVEL_* \#defines.
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| 52 | */
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| 53 | PDMDECL(int) PDMIsaSetIrq(PVM pVM, uint8_t u8Irq, uint8_t u8Level);
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| 54 |
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| 55 | /**
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| 56 | * Sets the pending I/O APIC interrupt.
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| 57 | *
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| 58 | * @returns VBox status code.
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| 59 | * @param pVM VM handle.
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| 60 | * @param u8Irq The IRQ line.
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| 61 | * @param u8Level The new level. See the PDM_IRQ_LEVEL_* \#defines.
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| 62 | */
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| 63 | PDMDECL(int) PDMIoApicSetIrq(PVM pVM, uint8_t u8Irq, uint8_t u8Level);
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| 64 |
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| 65 | /**
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| 66 | * Set the APIC base.
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| 67 | *
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| 68 | * @returns VBox status code.
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| 69 | * @param pVM VM handle.
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| 70 | * @param u64Base The new base.
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| 71 | */
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| 72 | PDMDECL(int) PDMApicSetBase(PVM pVM, uint64_t u64Base);
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| 73 |
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| 74 | /**
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| 75 | * Get the APIC base.
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| 76 | *
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| 77 | * @returns VBox status code.
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| 78 | * @param pVM VM handle.
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| 79 | * @param pu64Base Where to store the APIC base.
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| 80 | */
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| 81 | PDMDECL(int) PDMApicGetBase(PVM pVM, uint64_t *pu64Base);
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| 82 |
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| 83 | /**
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| 84 | * Set the TPR (task priority register?).
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| 85 | *
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| 86 | * @returns VBox status code.
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| 87 | * @param pVM VM handle.
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| 88 | * @param u8TPR The new TPR.
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| 89 | */
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| 90 | PDMDECL(int) PDMApicSetTPR(PVM pVM, uint8_t u8TPR);
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| 91 |
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| 92 | /**
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| 93 | * Get the TPR (task priority register?).
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| 94 | *
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| 95 | * @returns The current TPR.
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| 96 | * @param pVM VM handle.
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| 97 | * @param pu8TPR Where to store the TRP.
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| 98 | */
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| 99 | PDMDECL(int) PDMApicGetTPR(PVM pVM, uint8_t *pu8TPR);
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| 100 |
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| 101 |
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| 102 | #ifdef IN_RING3
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| 103 | /** @defgroup grp_pdm_r3 The PDM Host Context Ring-3 API
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| 104 | * @ingroup grp_pdm
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| 105 | * @{
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| 106 | */
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| 107 |
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| 108 | /**
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| 109 | * Initializes the PDM.
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| 110 | *
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| 111 | * @returns VBox status code.
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| 112 | * @param pVM The VM to operate on.
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| 113 | */
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| 114 | PDMR3DECL(int) PDMR3Init(PVM pVM);
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| 115 |
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| 116 | /**
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| 117 | * This function will notify all the devices and their
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| 118 | * attached drivers about the VM now being powered on.
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| 119 | *
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| 120 | * @param pVM VM Handle.
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| 121 | */
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| 122 | PDMR3DECL(void) PDMR3PowerOn(PVM pVM);
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| 123 |
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| 124 | /**
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| 125 | * This function will notify all the devices and their
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| 126 | * attached drivers about the VM now being reset.
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| 127 | *
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| 128 | * @param pVM VM Handle.
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| 129 | */
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| 130 | PDMR3DECL(void) PDMR3Reset(PVM pVM);
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| 131 |
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| 132 | /**
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| 133 | * This function will notify all the devices and their
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| 134 | * attached drivers about the VM now being suspended.
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| 135 | *
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| 136 | * @param pVM VM Handle.
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| 137 | */
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| 138 | PDMR3DECL(void) PDMR3Suspend(PVM pVM);
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| 139 |
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| 140 | /**
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| 141 | * This function will notify all the devices and their
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| 142 | * attached drivers about the VM now being resumed.
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| 143 | *
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| 144 | * @param pVM VM Handle.
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| 145 | */
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| 146 | PDMR3DECL(void) PDMR3Resume(PVM pVM);
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| 147 |
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| 148 | /**
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| 149 | * This function will notify all the devices and their
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| 150 | * attached drivers about the VM being powered off.
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| 151 | *
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| 152 | * @param pVM VM Handle.
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| 153 | */
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| 154 | PDMR3DECL(void) PDMR3PowerOff(PVM pVM);
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| 155 |
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| 156 |
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| 157 | /**
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| 158 | * Applies relocations to GC modules.
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| 159 | *
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| 160 | * This must be done very early in the relocation
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| 161 | * process so that components can resolve GC symbols during relocation.
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| 162 | *
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| 163 | * @param pVM VM handle.
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| 164 | * @param offDelta Relocation delta relative to old location.
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| 165 | */
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| 166 | PDMR3DECL(void) PDMR3LdrRelocate(PVM pVM, RTGCINTPTR offDelta);
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| 167 |
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| 168 | /**
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| 169 | * Applies relocations to data and code managed by this
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| 170 | * component. This function will be called at init and
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| 171 | * whenever the VMM need to relocate it self inside the GC.
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| 172 | *
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| 173 | * @param pVM VM handle.
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| 174 | * @param offDelta Relocation delta relative to old location.
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| 175 | */
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| 176 | PDMR3DECL(void) PDMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
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| 177 |
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| 178 | /**
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| 179 | * Terminates the PDM.
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| 180 | *
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| 181 | * Termination means cleaning up and freeing all resources,
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| 182 | * the VM it self is at this point powered off or suspended.
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| 183 | *
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| 184 | * @returns VBox status code.
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| 185 | * @param pVM The VM to operate on.
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| 186 | */
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| 187 | PDMR3DECL(int) PDMR3Term(PVM pVM);
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| 188 |
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| 189 |
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| 190 | /**
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| 191 | * Get the address of a symbol in a given HC ring-3 module.
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| 192 | *
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| 193 | * @returns VBox status code.
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| 194 | * @param pVM VM handle.
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| 195 | * @param pszModule Module name.
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| 196 | * @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
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| 197 | * ordinal value rather than a string pointer.
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| 198 | * @param ppvValue Where to store the symbol value.
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| 199 | */
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| 200 | PDMR3DECL(int) PDMR3GetSymbolR3(PVM pVM, const char *pszModule, const char *pszSymbol, void **ppvValue);
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| 201 |
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| 202 | /**
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| 203 | * Get the address of a symbol in a given HC ring-0 module.
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| 204 | *
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| 205 | * @returns VBox status code.
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| 206 | * @param pVM VM handle.
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| 207 | * @param pszModule Module name. If NULL the main R0 module (VMMR0.r0) is assumed.
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| 208 | * @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
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| 209 | * ordinal value rather than a string pointer.
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| 210 | * @param ppvValue Where to store the symbol value.
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| 211 | */
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| 212 | PDMR3DECL(int) PDMR3GetSymbolR0(PVM pVM, const char *pszModule, const char *pszSymbol, PRTR0PTR ppvValue);
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| 213 |
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| 214 | /**
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| 215 | * Same as PDMR3GetSymbolR0 except that the module will be attempted loaded if not found.
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| 216 | *
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| 217 | * @returns VBox status code.
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| 218 | * @param pVM VM handle.
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| 219 | * @param pszModule Module name. If NULL the main R0 module (VMMR0.r0) is assumed.
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| 220 | * @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
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| 221 | * ordinal value rather than a string pointer.
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| 222 | * @param ppvValue Where to store the symbol value.
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| 223 | */
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| 224 | PDMR3DECL(int) PDMR3GetSymbolR0Lazy(PVM pVM, const char *pszModule, const char *pszSymbol, PRTR0PTR ppvValue);
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| 225 |
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| 226 | /**
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| 227 | * Loads a module into the guest context (i.e. into the Hypervisor memory region).
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| 228 | *
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| 229 | * The external (to PDM) use of this interface is to load VMMGC.gc.
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| 230 | *
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| 231 | * @returns VBox status code.
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| 232 | * @param pVM The VM to load it into.
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| 233 | * @param pszFilename Filename of the module binary.
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| 234 | * @param pszName Module name. Case sensitive and the length is limited!
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| 235 | */
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| 236 | PDMR3DECL(int) PDMR3LoadGC(PVM pVM, const char *pszFilename, const char *pszName);
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| 237 |
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| 238 | /**
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| 239 | * Get the address of a symbol in a given GC module.
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| 240 | *
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| 241 | * @returns VBox status code.
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| 242 | * @param pVM VM handle.
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| 243 | * @param pszModule Module name. If NULL the main GC module (VMMGC.gc) is assumed.
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| 244 | * @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
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| 245 | * ordinal value rather than a string pointer.
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| 246 | * @param pGCPtrValue Where to store the symbol value.
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| 247 | */
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| 248 | PDMR3DECL(int) PDMR3GetSymbolGC(PVM pVM, const char *pszModule, const char *pszSymbol, PRTGCPTR pGCPtrValue);
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| 249 |
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| 250 | /**
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| 251 | * Same as PDMR3GetSymbolGC except that the module will be attempted loaded if not found.
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| 252 | *
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| 253 | * @returns VBox status code.
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| 254 | * @param pVM VM handle.
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| 255 | * @param pszModule Module name. If NULL the main GC module (VMMGC.gc) is assumed.
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| 256 | * @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
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| 257 | * ordinal value rather than a string pointer.
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| 258 | * @param pGCPtrValue Where to store the symbol value.
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| 259 | */
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| 260 | PDMR3DECL(int) PDMR3GetSymbolGCLazy(PVM pVM, const char *pszModule, const char *pszSymbol, PRTGCPTR pGCPtrValue);
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| 261 |
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| 262 | /**
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| 263 | * Queries module information from an EIP.
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| 264 | *
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| 265 | * This is typically used to locate a crash address.
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| 266 | *
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| 267 | * @returns VBox status code.
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| 268 | * @param pVM VM handle
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| 269 | * @param uEIP EIP to locate.
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| 270 | * @param pszModName Where to store the module name.
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| 271 | * @param cchModName Size of the module name buffer.
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| 272 | * @param pMod Base address of the module.
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| 273 | * @param pszNearSym1 Name of the closes symbol from below.
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| 274 | * @param cchNearSym1 Size of the buffer pointed to by pszNearSym1.
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| 275 | * @param pNearSym1 The address of pszNearSym1.
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| 276 | * @param pszNearSym2 Name of the closes symbol from below.
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| 277 | * @param cchNearSym2 Size of the buffer pointed to by pszNearSym2.
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| 278 | * @param pNearSym2 The address of pszNearSym2.
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| 279 | */
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| 280 | PDMR3DECL(int) PDMR3QueryModFromEIP(PVM pVM, uint32_t uEIP,
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| 281 | char *pszModName, unsigned cchModName, RTGCPTR *pMod,
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| 282 | char *pszNearSym1, unsigned cchNearSym1, RTGCPTR *pNearSym1,
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| 283 | char *pszNearSym2, unsigned cchNearSym2, RTGCPTR *pNearSym2);
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| 284 |
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| 285 |
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| 286 | /**
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| 287 | * Module enumeration callback function.
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| 288 | *
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| 289 | * @returns VBox status.
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| 290 | * Failure will stop the search and return the return code.
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| 291 | * Warnings will be ignored and not returned.
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| 292 | * @param pVM VM Handle.
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| 293 | * @param pszFilename Module filename.
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| 294 | * @param pszName Module name. (short and unique)
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| 295 | * @param ImageBase Address where to executable image is loaded.
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| 296 | * @param cbImage Size of the executable image.
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| 297 | * @param fGC Set if guest context, clear if host context.
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| 298 | * @param pvArg User argument.
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| 299 | */
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| 300 | typedef DECLCALLBACK(int) FNPDMR3ENUM(PVM pVM, const char *pszFilename, const char *pszName, RTUINTPTR ImageBase, size_t cbImage, bool fGC);
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| 301 | /** Pointer to a FNPDMR3ENUM() function. */
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| 302 | typedef FNPDMR3ENUM *PFNPDMR3ENUM;
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| 303 |
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| 304 |
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| 305 | /**
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| 306 | * Enumerate all PDM modules.
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| 307 | *
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| 308 | * @returns VBox status.
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| 309 | * @param pVM VM Handle.
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| 310 | * @param pfnCallback Function to call back for each of the modules.
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| 311 | * @param pvArg User argument.
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| 312 | */
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| 313 | PDMR3DECL(int) PDMR3EnumModules(PVM pVM, PFNPDMR3ENUM pfnCallback, void *pvArg);
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| 314 |
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| 315 |
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| 316 | /**
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| 317 | * Queries the base interace of a device instance.
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| 318 | *
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| 319 | * The caller can use this to query other interfaces the device implements
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| 320 | * and use them to talk to the device.
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| 321 | *
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| 322 | * @returns VBox status code.
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| 323 | * @param pVM VM handle.
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| 324 | * @param pszDevice Device name.
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| 325 | * @param iInstance Device instance.
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| 326 | * @param ppBase Where to store the pointer to the base device interface on success.
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| 327 | * @remark We're not doing any locking ATM, so don't try call this at times when the
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| 328 | * device chain is known to be updated.
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| 329 | */
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| 330 | PDMR3DECL(int) PDMR3QueryDevice(PVM pVM, const char *pszDevice, unsigned iInstance, PPPDMIBASE ppBase);
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| 331 |
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| 332 | /**
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| 333 | * Queries the base interface of a device LUN.
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| 334 | *
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| 335 | * This differs from PDMR3QueryLun by that it returns the interface on the
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| 336 | * device and not the top level driver.
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| 337 | *
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| 338 | * @returns VBox status code.
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| 339 | * @param pVM VM Handle.
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| 340 | * @param pszDevice Device name.
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| 341 | * @param iInstance Device instance.
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| 342 | * @param iLun The Logical Unit to obtain the interface of.
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| 343 | * @param ppBase Where to store the base interface pointer.
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| 344 | * @remark We're not doing any locking ATM, so don't try call this at times when the
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| 345 | * device chain is known to be updated.
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| 346 | */
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| 347 | PDMR3DECL(int) PDMR3QueryDeviceLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPPDMIBASE ppBase);
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| 348 |
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| 349 | /**
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| 350 | * Query the interface of the top level driver on a LUN.
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| 351 | *
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| 352 | * @returns VBox status code.
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| 353 | * @param pVM VM Handle.
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| 354 | * @param pszDevice Device name.
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| 355 | * @param iInstance Device instance.
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| 356 | * @param iLun The Logical Unit to obtain the interface of.
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| 357 | * @param ppBase Where to store the base interface pointer.
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| 358 | * @remark We're not doing any locking ATM, so don't try call this at times when the
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| 359 | * device chain is known to be updated.
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| 360 | */
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| 361 | PDMR3DECL(int) PDMR3QueryLun(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPPDMIBASE ppBase);
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| 362 |
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| 363 | /**
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| 364 | * Attaches a preconfigured driver to an existing device instance.
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| 365 | *
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| 366 | * This is used to change drivers and suchlike at runtime.
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| 367 | *
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| 368 | * @returns VBox status code.
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| 369 | * @param pVM VM Handle.
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| 370 | * @param pszDevice Device name.
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| 371 | * @param iInstance Device instance.
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| 372 | * @param iLun The Logical Unit to obtain the interface of.
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| 373 | * @param ppBase Where to store the base interface pointer. Optional.
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| 374 | * @thread EMT
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| 375 | */
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| 376 | PDMR3DECL(int) PDMR3DeviceAttach(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun, PPPDMIBASE ppBase);
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| 377 |
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| 378 | /**
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| 379 | * Detaches a driver from an existing device instance.
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| 380 | *
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| 381 | * This is used to change drivers and suchlike at runtime.
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| 382 | *
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| 383 | * @returns VBox status code.
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| 384 | * @param pVM VM Handle.
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| 385 | * @param pszDevice Device name.
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| 386 | * @param iInstance Device instance.
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| 387 | * @param iLun The Logical Unit to obtain the interface of.
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| 388 | * @thread EMT
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| 389 | */
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| 390 | PDMR3DECL(int) PDMR3DeviceDetach(PVM pVM, const char *pszDevice, unsigned iInstance, unsigned iLun);
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| 391 |
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| 392 | /**
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| 393 | * Executes pending DMA transfers.
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| 394 | * Forced Action handler.
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| 395 | *
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| 396 | * @param pVM VM handle.
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| 397 | */
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| 398 | PDMR3DECL(void) PDMR3DmaRun(PVM pVM);
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| 399 |
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| 400 | /**
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| 401 | * Call polling function.
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| 402 | *
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| 403 | * @param pVM VM handle.
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| 404 | */
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| 405 | PDMR3DECL(void) PDMR3Poll(PVM pVM);
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| 406 |
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| 407 | /**
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| 408 | * Service a VMMCALLHOST_PDM_LOCK call.
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| 409 | *
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| 410 | * @returns VBox status code.
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| 411 | * @param pVM The VM handle.
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| 412 | */
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| 413 | PDMR3DECL(int) PDMR3LockCall(PVM pVM);
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| 414 |
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| 415 | /** @} */
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| 416 | #endif
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| 417 |
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| 418 |
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| 419 | #ifdef IN_GC
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| 420 | /** @defgroup grp_pdm_gc The PDM Guest Context API
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| 421 | * @ingroup grp_pdm
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| 422 | * @{
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| 423 | */
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| 424 | /** @} */
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| 425 | #endif
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| 426 |
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| 427 | __END_DECLS
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| 428 |
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| 429 | /** @} */
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| 430 |
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| 431 | #endif
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| 432 |
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