[23] | 1 | /* $Id: DBGFAddr.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
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[1] | 2 | /** @file
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[12677] | 3 | * DBGF - Debugger Facility, Mixed Address Methods.
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[1] | 4 | */
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| 5 |
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| 6 | /*
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[76553] | 7 | * Copyright (C) 2006-2019 Oracle Corporation
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[1] | 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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[5999] | 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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[1] | 16 | */
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| 17 |
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| 18 |
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[57358] | 19 | /*********************************************************************************************************************************
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| 20 | * Header Files *
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| 21 | *********************************************************************************************************************************/
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[1] | 22 | #define LOG_GROUP LOG_GROUP_DBGF
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[35346] | 23 | #include <VBox/vmm/dbgf.h>
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| 24 | #include <VBox/vmm/pgm.h>
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| 25 | #include <VBox/vmm/selm.h>
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| 26 | #include <VBox/vmm/mm.h>
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[45753] | 27 | #include <VBox/vmm/hm.h>
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[1] | 28 | #include "DBGFInternal.h"
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[35346] | 29 | #include <VBox/vmm/vm.h>
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[44399] | 30 | #include <VBox/vmm/uvm.h>
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| 31 |
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[19182] | 32 | #include <VBox/param.h>
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[1] | 33 | #include <VBox/err.h>
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| 34 | #include <VBox/log.h>
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| 35 |
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| 36 |
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| 37 |
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| 38 | /**
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| 39 | * Checks if an address is in the HMA or not.
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[44399] | 40 | *
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| 41 | * @retval true if it's inside the HMA.
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| 42 | * @retval flase if it's not inside the HMA.
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| 43 | *
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| 44 | * @param pUVM The user mode VM handle.
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| 45 | * @param FlatPtr The address in question.
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[1] | 46 | */
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[44399] | 47 | DECLINLINE(bool) dbgfR3IsHMA(PUVM pUVM, RTGCUINTPTR FlatPtr)
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[1] | 48 | {
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[70948] | 49 | return VM_IS_RAW_MODE_ENABLED(pUVM->pVM)
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[45752] | 50 | && MMHyperIsInsideArea(pUVM->pVM, FlatPtr);
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[1] | 51 | }
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| 52 |
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| 53 |
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| 54 | /**
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[22112] | 55 | * Common worker for DBGFR3AddrFromSelOff and DBGFR3AddrFromSelInfoOff.
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| 56 | */
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| 57 | static int dbgfR3AddrFromSelInfoOffWorker(PDBGFADDRESS pAddress, PCDBGFSELINFO pSelInfo, RTUINTPTR off)
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| 58 | {
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| 59 | if (pSelInfo->fFlags & (DBGFSELINFO_FLAGS_INVALID | DBGFSELINFO_FLAGS_NOT_PRESENT))
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| 60 | return pSelInfo->fFlags & DBGFSELINFO_FLAGS_NOT_PRESENT
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| 61 | ? VERR_SELECTOR_NOT_PRESENT
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| 62 | : VERR_INVALID_SELECTOR;
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| 63 |
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| 64 | /** @todo This all goes voodoo in long mode. */
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| 65 | /* check limit. */
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| 66 | if (DBGFSelInfoIsExpandDown(pSelInfo))
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| 67 | {
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| 68 | if ( !pSelInfo->u.Raw.Gen.u1Granularity
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| 69 | && off > UINT32_C(0xffff))
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| 70 | return VERR_OUT_OF_SELECTOR_BOUNDS;
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| 71 | if (off <= pSelInfo->cbLimit)
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| 72 | return VERR_OUT_OF_SELECTOR_BOUNDS;
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| 73 | }
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| 74 | else if (off > pSelInfo->cbLimit)
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| 75 | return VERR_OUT_OF_SELECTOR_BOUNDS;
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| 76 |
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| 77 | pAddress->FlatPtr = pSelInfo->GCPtrBase + off;
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| 78 |
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| 79 | /** @todo fix all these selector tests! */
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| 80 | if ( !pSelInfo->GCPtrBase
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| 81 | && pSelInfo->u.Raw.Gen.u1Granularity
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| 82 | && pSelInfo->u.Raw.Gen.u1DefBig)
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| 83 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT;
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| 84 | else if (pSelInfo->cbLimit <= UINT32_C(0xffff))
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| 85 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR16;
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| 86 | else if (pSelInfo->cbLimit <= UINT32_C(0xffffffff))
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| 87 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR32;
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| 88 | else
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| 89 | pAddress->fFlags = DBGFADDRESS_FLAGS_FAR64;
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| 90 |
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| 91 | return VINF_SUCCESS;
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| 92 | }
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| 93 |
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| 94 |
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| 95 | /**
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[1] | 96 | * Creates a mixed address from a Sel:off pair.
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| 97 | *
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| 98 | * @returns VBox status code.
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[44399] | 99 | * @param pUVM The user mode VM handle.
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| 100 | * @param idCpu The CPU ID.
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| 101 | * @param pAddress Where to store the mixed address.
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| 102 | * @param Sel The selector part.
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| 103 | * @param off The offset part.
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[1] | 104 | */
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[44399] | 105 | VMMR3DECL(int) DBGFR3AddrFromSelOff(PUVM pUVM, VMCPUID idCpu, PDBGFADDRESS pAddress, RTSEL Sel, RTUINTPTR off)
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[1] | 106 | {
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[44399] | 107 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
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| 108 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
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| 109 | AssertReturn(idCpu < pUVM->cCpus, VERR_INVALID_PARAMETER);
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[19286] | 110 |
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[1] | 111 | pAddress->Sel = Sel;
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| 112 | pAddress->off = off;
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| 113 | if (Sel != DBGF_SEL_FLAT)
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| 114 | {
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[19334] | 115 | DBGFSELINFO SelInfo;
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[44399] | 116 | int rc = DBGFR3SelQueryInfo(pUVM, idCpu, Sel, DBGFSELQI_FLAGS_DT_GUEST | DBGFSELQI_FLAGS_DT_ADJ_64BIT_MODE, &SelInfo);
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[70948] | 117 | if (RT_FAILURE(rc) && VM_IS_RAW_MODE_ENABLED(pUVM->pVM))
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[46155] | 118 | rc = DBGFR3SelQueryInfo(pUVM, idCpu, Sel, DBGFSELQI_FLAGS_DT_SHADOW, &SelInfo);
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[13816] | 119 | if (RT_FAILURE(rc))
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[1] | 120 | return rc;
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[22112] | 121 | rc = dbgfR3AddrFromSelInfoOffWorker(pAddress, &SelInfo, off);
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| 122 | if (RT_FAILURE(rc))
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| 123 | return rc;
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[46155] | 124 | if ( (SelInfo.fFlags & DBGFSELINFO_FLAGS_HYPER)
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| 125 | || dbgfR3IsHMA(pUVM, pAddress->FlatPtr))
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| 126 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
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[1] | 127 | }
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| 128 | else
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| 129 | {
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| 130 | pAddress->FlatPtr = off;
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| 131 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT;
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[46155] | 132 | if (dbgfR3IsHMA(pUVM, pAddress->FlatPtr))
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| 133 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
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[1] | 134 | }
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| 135 | pAddress->fFlags |= DBGFADDRESS_FLAGS_VALID;
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| 136 |
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| 137 | return VINF_SUCCESS;
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| 138 | }
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| 139 |
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| 140 |
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| 141 | /**
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[22112] | 142 | * Creates a mixed address from selector info and an offset into the segment
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| 143 | * described by it.
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| 144 | *
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| 145 | * @returns VBox status code.
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[44399] | 146 | * @param pUVM The user mode VM handle.
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| 147 | * @param pAddress Where to store the mixed address.
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| 148 | * @param pSelInfo The selector info.
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| 149 | * @param off The offset part.
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[22112] | 150 | */
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[44399] | 151 | VMMR3DECL(int) DBGFR3AddrFromSelInfoOff(PUVM pUVM, PDBGFADDRESS pAddress, PCDBGFSELINFO pSelInfo, RTUINTPTR off)
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[22112] | 152 | {
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[44399] | 153 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_VM_HANDLE);
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| 154 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, VERR_INVALID_VM_HANDLE);
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| 155 |
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[22112] | 156 | pAddress->Sel = pSelInfo->Sel;
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| 157 | pAddress->off = off;
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| 158 | int rc = dbgfR3AddrFromSelInfoOffWorker(pAddress, pSelInfo, off);
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| 159 | if (RT_FAILURE(rc))
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| 160 | return rc;
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[44399] | 161 |
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[22112] | 162 | pAddress->fFlags |= DBGFADDRESS_FLAGS_VALID;
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[44399] | 163 | if (dbgfR3IsHMA(pUVM, pAddress->FlatPtr))
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[22112] | 164 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
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[44399] | 165 |
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[22112] | 166 | return VINF_SUCCESS;
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| 167 | }
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| 168 |
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| 169 |
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| 170 | /**
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[1] | 171 | * Creates a mixed address from a flat address.
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| 172 | *
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[19286] | 173 | * @returns pAddress.
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[44399] | 174 | * @param pUVM The user mode VM handle.
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| 175 | * @param pAddress Where to store the mixed address.
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| 176 | * @param FlatPtr The flat pointer.
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[1] | 177 | */
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[44399] | 178 | VMMR3DECL(PDBGFADDRESS) DBGFR3AddrFromFlat(PUVM pUVM, PDBGFADDRESS pAddress, RTGCUINTPTR FlatPtr)
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[1] | 179 | {
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[44399] | 180 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
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| 181 | VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, NULL);
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[1] | 182 | pAddress->Sel = DBGF_SEL_FLAT;
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| 183 | pAddress->off = FlatPtr;
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| 184 | pAddress->FlatPtr = FlatPtr;
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| 185 | pAddress->fFlags = DBGFADDRESS_FLAGS_FLAT | DBGFADDRESS_FLAGS_VALID;
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[44399] | 186 | if (dbgfR3IsHMA(pUVM, pAddress->FlatPtr))
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[1] | 187 | pAddress->fFlags |= DBGFADDRESS_FLAGS_HMA;
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[8819] | 188 | return pAddress;
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[1] | 189 | }
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| 190 |
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| 191 |
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| 192 | /**
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[5667] | 193 | * Creates a mixed address from a guest physical address.
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| 194 | *
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[19286] | 195 | * @returns pAddress.
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[44399] | 196 | * @param pUVM The user mode VM handle.
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| 197 | * @param pAddress Where to store the mixed address.
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| 198 | * @param PhysAddr The guest physical address.
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[5667] | 199 | */
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[44399] | 200 | VMMR3DECL(PDBGFADDRESS) DBGFR3AddrFromPhys(PUVM pUVM, PDBGFADDRESS pAddress, RTGCPHYS PhysAddr)
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[5667] | 201 | {
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[44399] | 202 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
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[5667] | 203 | pAddress->Sel = DBGF_SEL_FLAT;
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| 204 | pAddress->off = PhysAddr;
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| 205 | pAddress->FlatPtr = PhysAddr;
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| 206 | pAddress->fFlags = DBGFADDRESS_FLAGS_PHYS | DBGFADDRESS_FLAGS_VALID;
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[19286] | 207 | return pAddress;
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[5667] | 208 | }
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| 209 |
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| 210 |
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| 211 | /**
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[73471] | 212 | * Creates a mixed address from a flat host ring-0 address.
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| 213 | *
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| 214 | * @returns pAddress
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| 215 | * @param pAddress Where to store the mixed address.
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| 216 | * @param R0Ptr The host ring-0 address.
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| 217 | */
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| 218 | VMMR3_INT_DECL(PDBGFADDRESS) DBGFR3AddrFromHostR0(PDBGFADDRESS pAddress, RTR0UINTPTR R0Ptr)
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| 219 | {
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| 220 | pAddress->FlatPtr = R0Ptr;
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| 221 | pAddress->off = R0Ptr;
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| 222 | pAddress->fFlags = DBGFADDRESS_FLAGS_RING0 | DBGFADDRESS_FLAGS_VALID;
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| 223 | pAddress->Sel = DBGF_SEL_FLAT;
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| 224 | return pAddress;
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| 225 | }
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| 226 |
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| 227 |
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| 228 | /**
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[1] | 229 | * Checks if the specified address is valid (checks the structure pointer too).
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| 230 | *
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| 231 | * @returns true if valid.
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| 232 | * @returns false if invalid.
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[44399] | 233 | * @param pUVM The user mode VM handle.
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| 234 | * @param pAddress The address to validate.
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[1] | 235 | */
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[44399] | 236 | VMMR3DECL(bool) DBGFR3AddrIsValid(PUVM pUVM, PCDBGFADDRESS pAddress)
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[1] | 237 | {
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[44399] | 238 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, false);
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[1] | 239 | if (!VALID_PTR(pAddress))
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| 240 | return false;
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| 241 | if (!DBGFADDRESS_IS_VALID(pAddress))
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| 242 | return false;
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| 243 | /* more? */
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| 244 | return true;
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| 245 | }
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[12663] | 246 |
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[19182] | 247 |
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| 248 | /**
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| 249 | * Called on the EMT for the VCpu.
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| 250 | *
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| 251 | * @returns VBox status code.
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[58123] | 252 | * @param pVCpu The cross context virtual CPU structure.
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[19182] | 253 | * @param pAddress The address.
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| 254 | * @param pGCPhys Where to return the physical address.
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| 255 | */
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[64770] | 256 | static DECLCALLBACK(int) dbgfR3AddrToPhysOnVCpu(PVMCPU pVCpu, PCDBGFADDRESS pAddress, PRTGCPHYS pGCPhys)
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[19182] | 257 | {
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| 258 | VMCPU_ASSERT_EMT(pVCpu);
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| 259 | /* This is just a wrapper because we cannot pass FlatPtr thru VMR3ReqCall directly. */
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| 260 | return PGMGstGetPage(pVCpu, pAddress->FlatPtr, NULL, pGCPhys);
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| 261 | }
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| 262 |
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| 263 |
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| 264 | /**
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| 265 | * Converts an address to a guest physical address.
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| 266 | *
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| 267 | * @returns VBox status code.
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| 268 | * @retval VINF_SUCCESS
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| 269 | * @retval VERR_INVALID_PARAMETER if the address is invalid.
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| 270 | * @retval VERR_INVALID_STATE if the VM is being terminated or if the virtual
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| 271 | * CPU handle is invalid.
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| 272 | * @retval VERR_NOT_SUPPORTED is the type of address cannot be converted.
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| 273 | * @retval VERR_PAGE_NOT_PRESENT
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| 274 | * @retval VERR_PAGE_TABLE_NOT_PRESENT
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| 275 | * @retval VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT
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| 276 | * @retval VERR_PAGE_MAP_LEVEL4_NOT_PRESENT
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| 277 | *
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[44399] | 278 | * @param pUVM The user mode VM handle.
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[19286] | 279 | * @param idCpu The ID of the CPU context to convert virtual
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| 280 | * addresses.
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[19182] | 281 | * @param pAddress The address.
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| 282 | * @param pGCPhys Where to return the physical address.
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| 283 | */
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[64770] | 284 | VMMR3DECL(int) DBGFR3AddrToPhys(PUVM pUVM, VMCPUID idCpu, PCDBGFADDRESS pAddress, PRTGCPHYS pGCPhys)
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[19182] | 285 | {
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| 286 | /*
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| 287 | * Parameter validation.
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| 288 | */
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| 289 | AssertPtr(pGCPhys);
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| 290 | *pGCPhys = NIL_RTGCPHYS;
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| 291 | AssertPtr(pAddress);
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| 292 | AssertReturn(DBGFADDRESS_IS_VALID(pAddress), VERR_INVALID_PARAMETER);
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[44399] | 293 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_STATE);
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| 294 | PVM pVM = pUVM->pVM;
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| 295 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
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| 296 | AssertReturn(idCpu < pUVM->cCpus, VERR_INVALID_PARAMETER);
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[19182] | 297 |
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| 298 | /*
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| 299 | * Convert by address type.
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| 300 | */
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| 301 | int rc;
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| 302 | if (pAddress->fFlags & DBGFADDRESS_FLAGS_HMA)
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| 303 | rc = VERR_NOT_SUPPORTED;
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| 304 | else if (pAddress->fFlags & DBGFADDRESS_FLAGS_PHYS)
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| 305 | {
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| 306 | *pGCPhys = pAddress->FlatPtr;
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| 307 | rc = VINF_SUCCESS;
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| 308 | }
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| 309 | else
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| 310 | {
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[19293] | 311 | PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
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[19286] | 312 | if (VMCPU_IS_EMT(pVCpu))
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| 313 | rc = dbgfR3AddrToPhysOnVCpu(pVCpu, pAddress, pGCPhys);
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| 314 | else
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[44399] | 315 | rc = VMR3ReqPriorityCallWaitU(pUVM, pVCpu->idCpu,
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| 316 | (PFNRT)dbgfR3AddrToPhysOnVCpu, 3, pVCpu, pAddress, pGCPhys);
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[19182] | 317 | }
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| 318 | return rc;
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| 319 | }
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| 320 |
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| 321 |
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| 322 | /**
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| 323 | * Converts an address to a host physical address.
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| 324 | *
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| 325 | * @returns VBox status code.
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| 326 | * @retval VINF_SUCCESS
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| 327 | * @retval VERR_INVALID_PARAMETER if the address is invalid.
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| 328 | * @retval VERR_INVALID_STATE if the VM is being terminated or if the virtual
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| 329 | * CPU handle is invalid.
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| 330 | * @retval VERR_NOT_SUPPORTED is the type of address cannot be converted.
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| 331 | * @retval VERR_PAGE_NOT_PRESENT
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| 332 | * @retval VERR_PAGE_TABLE_NOT_PRESENT
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| 333 | * @retval VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT
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| 334 | * @retval VERR_PAGE_MAP_LEVEL4_NOT_PRESENT
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| 335 | * @retval VERR_PGM_PHYS_PAGE_RESERVED
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| 336 | * @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS
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| 337 | *
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[44399] | 338 | * @param pUVM The user mode VM handle.
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[19286] | 339 | * @param idCpu The ID of the CPU context to convert virtual
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| 340 | * addresses.
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[19182] | 341 | * @param pAddress The address.
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| 342 | * @param pHCPhys Where to return the physical address.
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| 343 | */
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[44399] | 344 | VMMR3DECL(int) DBGFR3AddrToHostPhys(PUVM pUVM, VMCPUID idCpu, PDBGFADDRESS pAddress, PRTHCPHYS pHCPhys)
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[19182] | 345 | {
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| 346 | /*
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| 347 | * Parameter validation.
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| 348 | */
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| 349 | AssertPtr(pHCPhys);
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| 350 | *pHCPhys = NIL_RTHCPHYS;
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| 351 | AssertPtr(pAddress);
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| 352 | AssertReturn(DBGFADDRESS_IS_VALID(pAddress), VERR_INVALID_PARAMETER);
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[44399] | 353 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_STATE);
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| 354 | PVM pVM = pUVM->pVM;
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| 355 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
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| 356 | AssertReturn(idCpu < pUVM->cCpus, VERR_INVALID_PARAMETER);
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[19182] | 357 |
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| 358 | /*
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| 359 | * Convert it if we can.
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| 360 | */
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| 361 | int rc;
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| 362 | if (pAddress->fFlags & DBGFADDRESS_FLAGS_HMA)
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| 363 | rc = VERR_NOT_SUPPORTED; /** @todo implement this */
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| 364 | else
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| 365 | {
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| 366 | RTGCPHYS GCPhys;
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[44399] | 367 | rc = DBGFR3AddrToPhys(pUVM, idCpu, pAddress, &GCPhys);
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[19182] | 368 | if (RT_SUCCESS(rc))
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[19286] | 369 | rc = PGMPhysGCPhys2HCPhys(pVM, pAddress->FlatPtr, pHCPhys);
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[19182] | 370 | }
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| 371 | return rc;
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| 372 | }
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| 373 |
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| 374 |
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| 375 | /**
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| 376 | * Called on the EMT for the VCpu.
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| 377 | *
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| 378 | * @returns VBox status code.
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[19286] | 379 | *
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[44399] | 380 | * @param pUVM The user mode VM handle.
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[19286] | 381 | * @param idCpu The ID of the CPU context.
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[19182] | 382 | * @param pAddress The address.
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| 383 | * @param fReadOnly Whether returning a read-only page is fine or not.
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| 384 | * @param ppvR3Ptr Where to return the address.
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| 385 | */
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[44399] | 386 | static DECLCALLBACK(int) dbgfR3AddrToVolatileR3PtrOnVCpu(PUVM pUVM, VMCPUID idCpu, PDBGFADDRESS pAddress, bool fReadOnly,
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| 387 | void **ppvR3Ptr)
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[19182] | 388 | {
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[44399] | 389 | PVM pVM = pUVM->pVM;
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| 390 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
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[19286] | 391 | Assert(idCpu == VMMGetCpuId(pVM));
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[19182] | 392 |
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| 393 | int rc;
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| 394 | if (pAddress->fFlags & DBGFADDRESS_FLAGS_HMA)
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| 395 | {
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| 396 | rc = VERR_NOT_SUPPORTED; /** @todo create some dedicated errors for this stuff. */
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| 397 | /** @todo this may assert, create a debug version of this which doesn't. */
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[70948] | 398 | if ( VM_IS_RAW_MODE_ENABLED(pVM)
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[45752] | 399 | && MMHyperIsInsideArea(pVM, pAddress->FlatPtr))
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[19182] | 400 | {
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| 401 | void *pv = MMHyperRCToCC(pVM, (RTRCPTR)pAddress->FlatPtr);
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| 402 | if (pv)
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| 403 | {
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| 404 | *ppvR3Ptr = pv;
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| 405 | rc = VINF_SUCCESS;
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| 406 | }
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| 407 | }
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| 408 | }
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| 409 | else
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| 410 | {
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| 411 | /*
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| 412 | * This is a tad ugly, but it gets the job done.
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| 413 | */
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| 414 | PGMPAGEMAPLOCK Lock;
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| 415 | if (pAddress->fFlags & DBGFADDRESS_FLAGS_PHYS)
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| 416 | {
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| 417 | if (fReadOnly)
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| 418 | rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, pAddress->FlatPtr, (void const **)ppvR3Ptr, &Lock);
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| 419 | else
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| 420 | rc = PGMPhysGCPhys2CCPtr(pVM, pAddress->FlatPtr, ppvR3Ptr, &Lock);
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| 421 | }
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| 422 | else
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| 423 | {
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[19293] | 424 | PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
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[19182] | 425 | if (fReadOnly)
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| 426 | rc = PGMPhysGCPtr2CCPtrReadOnly(pVCpu, pAddress->FlatPtr, (void const **)ppvR3Ptr, &Lock);
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| 427 | else
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| 428 | rc = PGMPhysGCPtr2CCPtr(pVCpu, pAddress->FlatPtr, ppvR3Ptr, &Lock);
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| 429 | }
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| 430 | if (RT_SUCCESS(rc))
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| 431 | PGMPhysReleasePageMappingLock(pVM, &Lock);
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| 432 | }
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| 433 | return rc;
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| 434 | }
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| 435 |
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| 436 |
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| 437 |
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| 438 |
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| 439 | /**
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| 440 | * Converts an address to a volatile host virtual address.
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| 441 | *
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| 442 | * @returns VBox status code.
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| 443 | * @retval VINF_SUCCESS
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| 444 | * @retval VERR_INVALID_PARAMETER if the address is invalid.
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| 445 | * @retval VERR_INVALID_STATE if the VM is being terminated or if the virtual
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| 446 | * CPU handle is invalid.
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| 447 | * @retval VERR_NOT_SUPPORTED is the type of address cannot be converted.
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| 448 | * @retval VERR_PAGE_NOT_PRESENT
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| 449 | * @retval VERR_PAGE_TABLE_NOT_PRESENT
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| 450 | * @retval VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT
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| 451 | * @retval VERR_PAGE_MAP_LEVEL4_NOT_PRESENT
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| 452 | * @retval VERR_PGM_PHYS_PAGE_RESERVED
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| 453 | * @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS
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| 454 | *
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[44399] | 455 | * @param pUVM The user mode VM handle.
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[19286] | 456 | * @param idCpu The ID of the CPU context to convert virtual
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| 457 | * addresses.
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[19182] | 458 | * @param pAddress The address.
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| 459 | * @param fReadOnly Whether returning a read-only page is fine or not.
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| 460 | * If set to thru the page may have to be made writable
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| 461 | * before we return.
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| 462 | * @param ppvR3Ptr Where to return the address.
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| 463 | */
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[44399] | 464 | VMMR3DECL(int) DBGFR3AddrToVolatileR3Ptr(PUVM pUVM, VMCPUID idCpu, PDBGFADDRESS pAddress, bool fReadOnly, void **ppvR3Ptr)
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[19182] | 465 | {
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| 466 | /*
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| 467 | * Parameter validation.
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| 468 | */
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| 469 | AssertPtr(ppvR3Ptr);
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| 470 | *ppvR3Ptr = NULL;
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| 471 | AssertPtr(pAddress);
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| 472 | AssertReturn(DBGFADDRESS_IS_VALID(pAddress), VERR_INVALID_PARAMETER);
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[44399] | 473 | UVM_ASSERT_VALID_EXT_RETURN(pUVM, VERR_INVALID_STATE);
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| 474 | AssertReturn(idCpu < pUVM->cCpus, VERR_INVALID_PARAMETER);
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[19182] | 475 |
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| 476 | /*
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| 477 | * Convert it.
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| 478 | */
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[44399] | 479 | return VMR3ReqPriorityCallWaitU(pUVM, idCpu, (PFNRT)dbgfR3AddrToVolatileR3PtrOnVCpu, 5,
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| 480 | pUVM, idCpu, pAddress, fReadOnly, ppvR3Ptr);
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[19182] | 481 | }
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| 482 |
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[19286] | 483 |
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| 484 | /**
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| 485 | * Adds an offset to an address.
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| 486 | *
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| 487 | * @returns pAddress.
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| 488 | *
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| 489 | * @param pAddress The address.
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| 490 | * @param uAddend How much to add.
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| 491 | *
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| 492 | * @remarks No address space or segment limit checks are performed,
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| 493 | */
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| 494 | VMMR3DECL(PDBGFADDRESS) DBGFR3AddrAdd(PDBGFADDRESS pAddress, RTGCUINTPTR uAddend)
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| 495 | {
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| 496 | /*
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| 497 | * Parameter validation.
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| 498 | */
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| 499 | AssertPtrReturn(pAddress, NULL);
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| 500 | AssertReturn(DBGFADDRESS_IS_VALID(pAddress), NULL);
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| 501 |
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| 502 | /*
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| 503 | * Add the stuff.
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| 504 | */
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| 505 | pAddress->off += uAddend;
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| 506 | pAddress->FlatPtr += uAddend;
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| 507 |
|
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| 508 | return pAddress;
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| 509 | }
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| 510 |
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| 511 |
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| 512 | /**
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| 513 | * Subtracts an offset from an address.
|
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| 514 | *
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| 515 | * @returns VINF_SUCCESS on success.
|
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| 516 | *
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| 517 | * @param pAddress The address.
|
---|
| 518 | * @param uSubtrahend How much to subtract.
|
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| 519 | *
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| 520 | * @remarks No address space or segment limit checks are performed,
|
---|
| 521 | */
|
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| 522 | VMMR3DECL(PDBGFADDRESS) DBGFR3AddrSub(PDBGFADDRESS pAddress, RTGCUINTPTR uSubtrahend)
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| 523 | {
|
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| 524 | /*
|
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| 525 | * Parameter validation.
|
---|
| 526 | */
|
---|
| 527 | AssertPtrReturn(pAddress, NULL);
|
---|
| 528 | AssertReturn(DBGFADDRESS_IS_VALID(pAddress), NULL);
|
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| 529 |
|
---|
| 530 | /*
|
---|
| 531 | * Add the stuff.
|
---|
| 532 | */
|
---|
| 533 | pAddress->off -= uSubtrahend;
|
---|
| 534 | pAddress->FlatPtr -= uSubtrahend;
|
---|
| 535 |
|
---|
| 536 | return pAddress;
|
---|
| 537 | }
|
---|
| 538 |
|
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