[23] | 1 | /* $Id: PGMAll.cpp 43387 2012-09-21 09:40:25Z vboxsync $ */
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[1] | 2 | /** @file
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| 3 | * PGM - Page Manager and Monitor - All context code.
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| 4 | */
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| 5 |
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| 6 | /*
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[28800] | 7 | * Copyright (C) 2006-2007 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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| 19 | * Header Files *
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| 20 | *******************************************************************************/
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| 21 | #define LOG_GROUP LOG_GROUP_PGM
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[35346] | 22 | #include <VBox/vmm/pgm.h>
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| 23 | #include <VBox/vmm/cpum.h>
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| 24 | #include <VBox/vmm/selm.h>
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| 25 | #include <VBox/vmm/iom.h>
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[1] | 26 | #include <VBox/sup.h>
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[35346] | 27 | #include <VBox/vmm/mm.h>
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| 28 | #include <VBox/vmm/stam.h>
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| 29 | #include <VBox/vmm/csam.h>
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| 30 | #include <VBox/vmm/patm.h>
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| 31 | #include <VBox/vmm/trpm.h>
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[40274] | 32 | #ifdef VBOX_WITH_REM
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| 33 | # include <VBox/vmm/rem.h>
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| 34 | #endif
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[35346] | 35 | #include <VBox/vmm/em.h>
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[43387] | 36 | #include <VBox/vmm/hm.h>
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| 37 | #include <VBox/vmm/hm_vmx.h>
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[35333] | 38 | #include "PGMInternal.h"
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[35346] | 39 | #include <VBox/vmm/vm.h>
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[35333] | 40 | #include "PGMInline.h"
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[1] | 41 | #include <iprt/assert.h>
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[29250] | 42 | #include <iprt/asm-amd64-x86.h>
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[1] | 43 | #include <iprt/string.h>
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| 44 | #include <VBox/log.h>
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| 45 | #include <VBox/param.h>
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| 46 | #include <VBox/err.h>
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| 47 |
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| 48 |
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| 49 | /*******************************************************************************
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| 50 | * Structures and Typedefs *
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| 51 | *******************************************************************************/
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| 52 | /**
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| 53 | * Stated structure for PGM_GST_NAME(HandlerVirtualUpdate) that's
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| 54 | * passed to PGM_GST_NAME(VirtHandlerUpdateOne) during enumeration.
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| 55 | */
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| 56 | typedef struct PGMHVUSTATE
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| 57 | {
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[41783] | 58 | /** Pointer to the VM. */
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[1] | 59 | PVM pVM;
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[41783] | 60 | /** Pointer to the VMCPU. */
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[18927] | 61 | PVMCPU pVCpu;
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[1] | 62 | /** The todo flags. */
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| 63 | RTUINT fTodo;
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| 64 | /** The CR4 register value. */
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| 65 | uint32_t cr4;
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| 66 | } PGMHVUSTATE, *PPGMHVUSTATE;
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| 67 |
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| 68 |
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| 69 | /*******************************************************************************
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| 70 | * Internal Functions *
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| 71 | *******************************************************************************/
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[18992] | 72 | DECLINLINE(int) pgmShwGetLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPT *ppPdpt, PX86PDPAE *ppPD);
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[31167] | 73 | DECLINLINE(int) pgmShwGetPaePoolPagePD(PVMCPU pVCpu, RTGCPTR GCPtr, PPGMPOOLPAGE *ppShwPde);
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[31066] | 74 | #ifndef IN_RC
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[31081] | 75 | static int pgmShwSyncLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, X86PGPAEUINT uGstPml4e, X86PGPAEUINT uGstPdpe, PX86PDPAE *ppPD);
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| 76 | static int pgmShwGetEPTPDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PEPTPDPT *ppPdpt, PEPTPD *ppPD);
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[31066] | 77 | #endif
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[1] | 78 |
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[31066] | 79 |
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[1] | 80 | /*
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| 81 | * Shadow - 32-bit mode
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| 82 | */
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| 83 | #define PGM_SHW_TYPE PGM_TYPE_32BIT
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| 84 | #define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
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| 85 | #include "PGMAllShw.h"
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| 86 |
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| 87 | /* Guest - real mode */
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| 88 | #define PGM_GST_TYPE PGM_TYPE_REAL
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| 89 | #define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
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| 90 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
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| 91 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
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[16428] | 92 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
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[17215] | 93 | #include "PGMGstDefs.h"
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[1] | 94 | #include "PGMAllGst.h"
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| 95 | #include "PGMAllBth.h"
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| 96 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 97 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 98 | #undef PGM_BTH_NAME
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| 99 | #undef PGM_GST_TYPE
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| 100 | #undef PGM_GST_NAME
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| 101 |
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| 102 | /* Guest - protected mode */
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| 103 | #define PGM_GST_TYPE PGM_TYPE_PROT
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| 104 | #define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
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| 105 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
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| 106 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
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[16428] | 107 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
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[17215] | 108 | #include "PGMGstDefs.h"
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[1] | 109 | #include "PGMAllGst.h"
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| 110 | #include "PGMAllBth.h"
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| 111 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 112 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 113 | #undef PGM_BTH_NAME
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| 114 | #undef PGM_GST_TYPE
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| 115 | #undef PGM_GST_NAME
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| 116 |
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| 117 | /* Guest - 32-bit mode */
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| 118 | #define PGM_GST_TYPE PGM_TYPE_32BIT
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| 119 | #define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
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| 120 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
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| 121 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
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| 122 | #define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
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[16317] | 123 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD
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[17215] | 124 | #include "PGMGstDefs.h"
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[1] | 125 | #include "PGMAllGst.h"
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| 126 | #include "PGMAllBth.h"
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| 127 | #undef BTH_PGMPOOLKIND_PT_FOR_BIG
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| 128 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 129 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 130 | #undef PGM_BTH_NAME
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| 131 | #undef PGM_GST_TYPE
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| 132 | #undef PGM_GST_NAME
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| 133 |
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| 134 | #undef PGM_SHW_TYPE
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| 135 | #undef PGM_SHW_NAME
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| 136 |
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| 137 |
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| 138 | /*
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| 139 | * Shadow - PAE mode
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| 140 | */
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| 141 | #define PGM_SHW_TYPE PGM_TYPE_PAE
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| 142 | #define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
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| 143 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
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| 144 | #include "PGMAllShw.h"
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| 145 |
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| 146 | /* Guest - real mode */
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| 147 | #define PGM_GST_TYPE PGM_TYPE_REAL
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| 148 | #define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
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| 149 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
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| 150 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
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[16428] | 151 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
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[17215] | 152 | #include "PGMGstDefs.h"
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[1] | 153 | #include "PGMAllBth.h"
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| 154 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 155 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 156 | #undef PGM_BTH_NAME
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| 157 | #undef PGM_GST_TYPE
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| 158 | #undef PGM_GST_NAME
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| 159 |
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| 160 | /* Guest - protected mode */
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| 161 | #define PGM_GST_TYPE PGM_TYPE_PROT
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| 162 | #define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
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| 163 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
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| 164 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
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[16428] | 165 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
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[17215] | 166 | #include "PGMGstDefs.h"
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[1] | 167 | #include "PGMAllBth.h"
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| 168 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 169 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 170 | #undef PGM_BTH_NAME
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| 171 | #undef PGM_GST_TYPE
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| 172 | #undef PGM_GST_NAME
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| 173 |
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| 174 | /* Guest - 32-bit mode */
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| 175 | #define PGM_GST_TYPE PGM_TYPE_32BIT
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| 176 | #define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
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| 177 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
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| 178 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
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| 179 | #define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
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[16317] | 180 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_FOR_32BIT
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[17215] | 181 | #include "PGMGstDefs.h"
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[1] | 182 | #include "PGMAllBth.h"
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| 183 | #undef BTH_PGMPOOLKIND_PT_FOR_BIG
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| 184 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 185 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 186 | #undef PGM_BTH_NAME
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| 187 | #undef PGM_GST_TYPE
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| 188 | #undef PGM_GST_NAME
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| 189 |
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| 190 |
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| 191 | /* Guest - PAE mode */
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| 192 | #define PGM_GST_TYPE PGM_TYPE_PAE
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| 193 | #define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
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| 194 | #define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
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| 195 | #define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
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| 196 | #define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
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[16317] | 197 | #define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT
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[17215] | 198 | #include "PGMGstDefs.h"
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[1] | 199 | #include "PGMAllGst.h"
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| 200 | #include "PGMAllBth.h"
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| 201 | #undef BTH_PGMPOOLKIND_PT_FOR_BIG
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| 202 | #undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 203 | #undef BTH_PGMPOOLKIND_ROOT
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[1] | 204 | #undef PGM_BTH_NAME
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| 205 | #undef PGM_GST_TYPE
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| 206 | #undef PGM_GST_NAME
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| 207 |
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| 208 | #undef PGM_SHW_TYPE
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| 209 | #undef PGM_SHW_NAME
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| 210 |
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| 211 |
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[13832] | 212 | #ifndef IN_RC /* AMD64 implies VT-x/AMD-V */
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[1] | 213 | /*
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| 214 | * Shadow - AMD64 mode
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| 215 | */
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[13188] | 216 | # define PGM_SHW_TYPE PGM_TYPE_AMD64
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| 217 | # define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
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| 218 | # include "PGMAllShw.h"
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[1] | 219 |
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[16321] | 220 | /* Guest - protected mode (only used for AMD-V nested paging in 64 bits mode) */
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[13188] | 221 | # define PGM_GST_TYPE PGM_TYPE_PROT
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| 222 | # define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
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| 223 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_PROT(name)
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| 224 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
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[16428] | 225 | # define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PD_PHYS
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[17215] | 226 | # include "PGMGstDefs.h"
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[13188] | 227 | # include "PGMAllBth.h"
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| 228 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 229 | # undef BTH_PGMPOOLKIND_ROOT
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[13188] | 230 | # undef PGM_BTH_NAME
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| 231 | # undef PGM_GST_TYPE
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| 232 | # undef PGM_GST_NAME
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[9001] | 233 |
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[13188] | 234 | # ifdef VBOX_WITH_64_BITS_GUESTS
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[1] | 235 | /* Guest - AMD64 mode */
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[13188] | 236 | # define PGM_GST_TYPE PGM_TYPE_AMD64
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| 237 | # define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
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| 238 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
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| 239 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
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| 240 | # define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
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[16317] | 241 | # define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_64BIT_PML4
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[17215] | 242 | # include "PGMGstDefs.h"
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[13188] | 243 | # include "PGMAllGst.h"
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| 244 | # include "PGMAllBth.h"
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| 245 | # undef BTH_PGMPOOLKIND_PT_FOR_BIG
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| 246 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
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[16317] | 247 | # undef BTH_PGMPOOLKIND_ROOT
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[13188] | 248 | # undef PGM_BTH_NAME
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| 249 | # undef PGM_GST_TYPE
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| 250 | # undef PGM_GST_NAME
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| 251 | # endif /* VBOX_WITH_64_BITS_GUESTS */
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[1] | 252 |
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[13188] | 253 | # undef PGM_SHW_TYPE
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| 254 | # undef PGM_SHW_NAME
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[9021] | 255 |
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[13188] | 256 |
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[9021] | 257 | /*
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| 258 | * Shadow - Nested paging mode
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| 259 | */
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[13188] | 260 | # define PGM_SHW_TYPE PGM_TYPE_NESTED
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| 261 | # define PGM_SHW_NAME(name) PGM_SHW_NAME_NESTED(name)
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| 262 | # include "PGMAllShw.h"
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[9021] | 263 |
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| 264 | /* Guest - real mode */
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[13188] | 265 | # define PGM_GST_TYPE PGM_TYPE_REAL
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| 266 | # define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
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| 267 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_REAL(name)
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[17215] | 268 | # include "PGMGstDefs.h"
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[13188] | 269 | # include "PGMAllBth.h"
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| 270 | # undef PGM_BTH_NAME
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| 271 | # undef PGM_GST_TYPE
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| 272 | # undef PGM_GST_NAME
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[9021] | 273 |
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| 274 | /* Guest - protected mode */
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[13188] | 275 | # define PGM_GST_TYPE PGM_TYPE_PROT
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| 276 | # define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
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| 277 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PROT(name)
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[17215] | 278 | # include "PGMGstDefs.h"
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[13188] | 279 | # include "PGMAllBth.h"
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| 280 | # undef PGM_BTH_NAME
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| 281 | # undef PGM_GST_TYPE
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| 282 | # undef PGM_GST_NAME
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[9021] | 283 |
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| 284 | /* Guest - 32-bit mode */
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[13188] | 285 | # define PGM_GST_TYPE PGM_TYPE_32BIT
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| 286 | # define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
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| 287 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_32BIT(name)
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[17215] | 288 | # include "PGMGstDefs.h"
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[13188] | 289 | # include "PGMAllBth.h"
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| 290 | # undef PGM_BTH_NAME
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| 291 | # undef PGM_GST_TYPE
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| 292 | # undef PGM_GST_NAME
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[9021] | 293 |
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| 294 | /* Guest - PAE mode */
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[13188] | 295 | # define PGM_GST_TYPE PGM_TYPE_PAE
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| 296 | # define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
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| 297 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PAE(name)
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[17215] | 298 | # include "PGMGstDefs.h"
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[13188] | 299 | # include "PGMAllBth.h"
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| 300 | # undef PGM_BTH_NAME
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| 301 | # undef PGM_GST_TYPE
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| 302 | # undef PGM_GST_NAME
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[9021] | 303 |
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[13188] | 304 | # ifdef VBOX_WITH_64_BITS_GUESTS
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[9021] | 305 | /* Guest - AMD64 mode */
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[13188] | 306 | # define PGM_GST_TYPE PGM_TYPE_AMD64
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| 307 | # define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
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| 308 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_AMD64(name)
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[17215] | 309 | # include "PGMGstDefs.h"
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[13188] | 310 | # include "PGMAllBth.h"
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| 311 | # undef PGM_BTH_NAME
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| 312 | # undef PGM_GST_TYPE
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| 313 | # undef PGM_GST_NAME
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| 314 | # endif /* VBOX_WITH_64_BITS_GUESTS */
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[9021] | 315 |
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[13188] | 316 | # undef PGM_SHW_TYPE
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| 317 | # undef PGM_SHW_NAME
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[10822] | 318 |
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[13188] | 319 |
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[10822] | 320 | /*
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| 321 | * Shadow - EPT
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| 322 | */
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[13188] | 323 | # define PGM_SHW_TYPE PGM_TYPE_EPT
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| 324 | # define PGM_SHW_NAME(name) PGM_SHW_NAME_EPT(name)
|
---|
| 325 | # include "PGMAllShw.h"
|
---|
[10822] | 326 |
|
---|
| 327 | /* Guest - real mode */
|
---|
[13188] | 328 | # define PGM_GST_TYPE PGM_TYPE_REAL
|
---|
| 329 | # define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
|
---|
| 330 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_REAL(name)
|
---|
| 331 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_EPT_PT_FOR_PHYS
|
---|
[17215] | 332 | # include "PGMGstDefs.h"
|
---|
[13188] | 333 | # include "PGMAllBth.h"
|
---|
| 334 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
|
---|
| 335 | # undef PGM_BTH_NAME
|
---|
| 336 | # undef PGM_GST_TYPE
|
---|
| 337 | # undef PGM_GST_NAME
|
---|
[10822] | 338 |
|
---|
| 339 | /* Guest - protected mode */
|
---|
[13188] | 340 | # define PGM_GST_TYPE PGM_TYPE_PROT
|
---|
| 341 | # define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
|
---|
| 342 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PROT(name)
|
---|
| 343 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_EPT_PT_FOR_PHYS
|
---|
[17215] | 344 | # include "PGMGstDefs.h"
|
---|
[13188] | 345 | # include "PGMAllBth.h"
|
---|
| 346 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
|
---|
| 347 | # undef PGM_BTH_NAME
|
---|
| 348 | # undef PGM_GST_TYPE
|
---|
| 349 | # undef PGM_GST_NAME
|
---|
[10822] | 350 |
|
---|
| 351 | /* Guest - 32-bit mode */
|
---|
[13188] | 352 | # define PGM_GST_TYPE PGM_TYPE_32BIT
|
---|
| 353 | # define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
|
---|
| 354 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_32BIT(name)
|
---|
| 355 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_EPT_PT_FOR_PHYS
|
---|
[17215] | 356 | # include "PGMGstDefs.h"
|
---|
[13188] | 357 | # include "PGMAllBth.h"
|
---|
| 358 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
|
---|
| 359 | # undef PGM_BTH_NAME
|
---|
| 360 | # undef PGM_GST_TYPE
|
---|
| 361 | # undef PGM_GST_NAME
|
---|
[10822] | 362 |
|
---|
| 363 | /* Guest - PAE mode */
|
---|
[13188] | 364 | # define PGM_GST_TYPE PGM_TYPE_PAE
|
---|
| 365 | # define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
|
---|
| 366 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PAE(name)
|
---|
| 367 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_EPT_PT_FOR_PHYS
|
---|
[17215] | 368 | # include "PGMGstDefs.h"
|
---|
[13188] | 369 | # include "PGMAllBth.h"
|
---|
| 370 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
|
---|
| 371 | # undef PGM_BTH_NAME
|
---|
| 372 | # undef PGM_GST_TYPE
|
---|
| 373 | # undef PGM_GST_NAME
|
---|
[10822] | 374 |
|
---|
[13188] | 375 | # ifdef VBOX_WITH_64_BITS_GUESTS
|
---|
[10822] | 376 | /* Guest - AMD64 mode */
|
---|
[13188] | 377 | # define PGM_GST_TYPE PGM_TYPE_AMD64
|
---|
| 378 | # define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
|
---|
| 379 | # define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_AMD64(name)
|
---|
| 380 | # define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_EPT_PT_FOR_PHYS
|
---|
[17215] | 381 | # include "PGMGstDefs.h"
|
---|
[13188] | 382 | # include "PGMAllBth.h"
|
---|
| 383 | # undef BTH_PGMPOOLKIND_PT_FOR_PT
|
---|
| 384 | # undef PGM_BTH_NAME
|
---|
| 385 | # undef PGM_GST_TYPE
|
---|
| 386 | # undef PGM_GST_NAME
|
---|
| 387 | # endif /* VBOX_WITH_64_BITS_GUESTS */
|
---|
[10822] | 388 |
|
---|
[13188] | 389 | # undef PGM_SHW_TYPE
|
---|
| 390 | # undef PGM_SHW_NAME
|
---|
[10822] | 391 |
|
---|
[13832] | 392 | #endif /* !IN_RC */
|
---|
[1] | 393 |
|
---|
[13067] | 394 |
|
---|
| 395 | #ifndef IN_RING3
|
---|
[1] | 396 | /**
|
---|
| 397 | * #PF Handler.
|
---|
| 398 | *
|
---|
| 399 | * @returns VBox status code (appropriate for trap handling and GC return).
|
---|
[41802] | 400 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 401 | * @param uErr The trap error code.
|
---|
| 402 | * @param pRegFrame Trap register frame.
|
---|
| 403 | * @param pvFault The fault address.
|
---|
| 404 | */
|
---|
[20671] | 405 | VMMDECL(int) PGMTrap0eHandler(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault)
|
---|
[1] | 406 | {
|
---|
[20671] | 407 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 408 |
|
---|
[41906] | 409 | Log(("PGMTrap0eHandler: uErr=%RGx pvFault=%RGv eip=%04x:%RGv cr3=%RGp\n", uErr, pvFault, pRegFrame->cs.Sel, (RTGCPTR)pRegFrame->rip, (RTGCPHYS)CPUMGetGuestCR3(pVCpu)));
|
---|
[31123] | 410 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0e, a);
|
---|
[18927] | 411 | STAM_STATS({ pVCpu->pgm.s.CTX_SUFF(pStatTrap0eAttribution) = NULL; } );
|
---|
[1] | 412 |
|
---|
| 413 |
|
---|
| 414 | #ifdef VBOX_WITH_STATISTICS
|
---|
| 415 | /*
|
---|
| 416 | * Error code stats.
|
---|
| 417 | */
|
---|
| 418 | if (uErr & X86_TRAP_PF_US)
|
---|
| 419 | {
|
---|
| 420 | if (!(uErr & X86_TRAP_PF_P))
|
---|
| 421 | {
|
---|
| 422 | if (uErr & X86_TRAP_PF_RW)
|
---|
[31123] | 423 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSNotPresentWrite);
|
---|
[1] | 424 | else
|
---|
[31123] | 425 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSNotPresentRead);
|
---|
[1] | 426 | }
|
---|
| 427 | else if (uErr & X86_TRAP_PF_RW)
|
---|
[31123] | 428 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSWrite);
|
---|
[1] | 429 | else if (uErr & X86_TRAP_PF_RSVD)
|
---|
[31123] | 430 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSReserved);
|
---|
[7629] | 431 | else if (uErr & X86_TRAP_PF_ID)
|
---|
[31123] | 432 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSNXE);
|
---|
[1] | 433 | else
|
---|
[31123] | 434 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eUSRead);
|
---|
[1] | 435 | }
|
---|
| 436 | else
|
---|
[7629] | 437 | { /* Supervisor */
|
---|
[1] | 438 | if (!(uErr & X86_TRAP_PF_P))
|
---|
| 439 | {
|
---|
| 440 | if (uErr & X86_TRAP_PF_RW)
|
---|
[31123] | 441 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eSVNotPresentWrite);
|
---|
[1] | 442 | else
|
---|
[31123] | 443 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eSVNotPresentRead);
|
---|
[1] | 444 | }
|
---|
| 445 | else if (uErr & X86_TRAP_PF_RW)
|
---|
[31123] | 446 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eSVWrite);
|
---|
[7629] | 447 | else if (uErr & X86_TRAP_PF_ID)
|
---|
[31123] | 448 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eSNXE);
|
---|
[1] | 449 | else if (uErr & X86_TRAP_PF_RSVD)
|
---|
[31123] | 450 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eSVReserved);
|
---|
[1] | 451 | }
|
---|
[13232] | 452 | #endif /* VBOX_WITH_STATISTICS */
|
---|
[1] | 453 |
|
---|
| 454 | /*
|
---|
| 455 | * Call the worker.
|
---|
| 456 | */
|
---|
[26202] | 457 | bool fLockTaken = false;
|
---|
| 458 | int rc = PGM_BTH_PFN(Trap0eHandler, pVCpu)(pVCpu, uErr, pRegFrame, pvFault, &fLockTaken);
|
---|
| 459 | if (fLockTaken)
|
---|
| 460 | {
|
---|
[37354] | 461 | PGM_LOCK_ASSERT_OWNER(pVM);
|
---|
[26202] | 462 | pgmUnlock(pVM);
|
---|
| 463 | }
|
---|
[31780] | 464 | LogFlow(("PGMTrap0eHandler: uErr=%RGx pvFault=%RGv rc=%Rrc\n", uErr, pvFault, rc));
|
---|
[21056] | 465 |
|
---|
[31780] | 466 | /*
|
---|
| 467 | * Return code tweaks.
|
---|
| 468 | */
|
---|
| 469 | if (rc != VINF_SUCCESS)
|
---|
| 470 | {
|
---|
| 471 | if (rc == VINF_PGM_SYNCPAGE_MODIFIED_PDE)
|
---|
| 472 | rc = VINF_SUCCESS;
|
---|
| 473 |
|
---|
[21056] | 474 | # ifdef IN_RING0
|
---|
[31780] | 475 | /* Note: hack alert for difficult to reproduce problem. */
|
---|
| 476 | if ( rc == VERR_PAGE_NOT_PRESENT /* SMP only ; disassembly might fail. */
|
---|
| 477 | || rc == VERR_PAGE_TABLE_NOT_PRESENT /* seen with UNI & SMP */
|
---|
| 478 | || rc == VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT /* seen with SMP */
|
---|
| 479 | || rc == VERR_PAGE_MAP_LEVEL4_NOT_PRESENT) /* precaution */
|
---|
| 480 | {
|
---|
| 481 | Log(("WARNING: Unexpected VERR_PAGE_TABLE_NOT_PRESENT (%d) for page fault at %RGv error code %x (rip=%RGv)\n", rc, pvFault, uErr, pRegFrame->rip));
|
---|
| 482 | /* Some kind of inconsistency in the SMP case; it's safe to just execute the instruction again; not sure about single VCPU VMs though. */
|
---|
| 483 | rc = VINF_SUCCESS;
|
---|
| 484 | }
|
---|
| 485 | # endif
|
---|
[21056] | 486 | }
|
---|
| 487 |
|
---|
[31123] | 488 | STAM_STATS({ if (rc == VINF_EM_RAW_GUEST_TRAP) STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eGuestPF); });
|
---|
[18927] | 489 | STAM_STATS({ if (!pVCpu->pgm.s.CTX_SUFF(pStatTrap0eAttribution))
|
---|
[31123] | 490 | pVCpu->pgm.s.CTX_SUFF(pStatTrap0eAttribution) = &pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0eTime2Misc; });
|
---|
| 491 | STAM_PROFILE_STOP_EX(&pVCpu->pgm.s.CTX_SUFF(pStats)->StatRZTrap0e, pVCpu->pgm.s.CTX_SUFF(pStatTrap0eAttribution), a);
|
---|
[1] | 492 | return rc;
|
---|
| 493 | }
|
---|
[13067] | 494 | #endif /* !IN_RING3 */
|
---|
[1] | 495 |
|
---|
[13067] | 496 |
|
---|
[1] | 497 | /**
|
---|
| 498 | * Prefetch a page
|
---|
| 499 | *
|
---|
| 500 | * Typically used to sync commonly used pages before entering raw mode
|
---|
| 501 | * after a CR3 reload.
|
---|
| 502 | *
|
---|
| 503 | * @returns VBox status code suitable for scheduling.
|
---|
| 504 | * @retval VINF_SUCCESS on success.
|
---|
| 505 | * @retval VINF_PGM_SYNC_CR3 if we're out of shadow pages or something like that.
|
---|
[41802] | 506 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 507 | * @param GCPtrPage Page to invalidate.
|
---|
| 508 | */
|
---|
[18992] | 509 | VMMDECL(int) PGMPrefetchPage(PVMCPU pVCpu, RTGCPTR GCPtrPage)
|
---|
[1] | 510 | {
|
---|
[31123] | 511 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,Prefetch), a);
|
---|
[18992] | 512 | int rc = PGM_BTH_PFN(PrefetchPage, pVCpu)(pVCpu, GCPtrPage);
|
---|
[31123] | 513 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,Prefetch), a);
|
---|
[13818] | 514 | AssertMsg(rc == VINF_SUCCESS || rc == VINF_PGM_SYNC_CR3 || RT_FAILURE(rc), ("rc=%Rrc\n", rc));
|
---|
[1] | 515 | return rc;
|
---|
| 516 | }
|
---|
| 517 |
|
---|
| 518 |
|
---|
| 519 | /**
|
---|
| 520 | * Gets the mapping corresponding to the specified address (if any).
|
---|
| 521 | *
|
---|
| 522 | * @returns Pointer to the mapping.
|
---|
| 523 | * @returns NULL if not
|
---|
| 524 | *
|
---|
[41783] | 525 | * @param pVM Pointer to the VM.
|
---|
[1] | 526 | * @param GCPtr The guest context pointer.
|
---|
| 527 | */
|
---|
| 528 | PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr)
|
---|
| 529 | {
|
---|
[13019] | 530 | PPGMMAPPING pMapping = pVM->pgm.s.CTX_SUFF(pMappings);
|
---|
[1] | 531 | while (pMapping)
|
---|
| 532 | {
|
---|
| 533 | if ((uintptr_t)GCPtr < (uintptr_t)pMapping->GCPtr)
|
---|
| 534 | break;
|
---|
| 535 | if ((uintptr_t)GCPtr - (uintptr_t)pMapping->GCPtr < pMapping->cb)
|
---|
| 536 | return pMapping;
|
---|
[13019] | 537 | pMapping = pMapping->CTX_SUFF(pNext);
|
---|
[1] | 538 | }
|
---|
| 539 | return NULL;
|
---|
| 540 | }
|
---|
| 541 |
|
---|
| 542 |
|
---|
| 543 | /**
|
---|
| 544 | * Verifies a range of pages for read or write access
|
---|
| 545 | *
|
---|
| 546 | * Only checks the guest's page tables
|
---|
| 547 | *
|
---|
| 548 | * @returns VBox status code.
|
---|
[41802] | 549 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 550 | * @param Addr Guest virtual address to check
|
---|
| 551 | * @param cbSize Access size
|
---|
| 552 | * @param fAccess Access type (r/w, user/supervisor (X86_PTE_*))
|
---|
[13232] | 553 | * @remarks Current not in use.
|
---|
[1] | 554 | */
|
---|
[18992] | 555 | VMMDECL(int) PGMIsValidAccess(PVMCPU pVCpu, RTGCPTR Addr, uint32_t cbSize, uint32_t fAccess)
|
---|
[1] | 556 | {
|
---|
| 557 | /*
|
---|
| 558 | * Validate input.
|
---|
| 559 | */
|
---|
| 560 | if (fAccess & ~(X86_PTE_US | X86_PTE_RW))
|
---|
| 561 | {
|
---|
| 562 | AssertMsgFailed(("PGMIsValidAccess: invalid access type %08x\n", fAccess));
|
---|
| 563 | return VERR_INVALID_PARAMETER;
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | uint64_t fPage;
|
---|
[18988] | 567 | int rc = PGMGstGetPage(pVCpu, (RTGCPTR)Addr, &fPage, NULL);
|
---|
[13816] | 568 | if (RT_FAILURE(rc))
|
---|
[1] | 569 | {
|
---|
[13823] | 570 | Log(("PGMIsValidAccess: access violation for %RGv rc=%d\n", Addr, rc));
|
---|
[1] | 571 | return VINF_EM_RAW_GUEST_TRAP;
|
---|
| 572 | }
|
---|
| 573 |
|
---|
| 574 | /*
|
---|
| 575 | * Check if the access would cause a page fault
|
---|
| 576 | *
|
---|
| 577 | * Note that hypervisor page directories are not present in the guest's tables, so this check
|
---|
| 578 | * is sufficient.
|
---|
| 579 | */
|
---|
| 580 | bool fWrite = !!(fAccess & X86_PTE_RW);
|
---|
| 581 | bool fUser = !!(fAccess & X86_PTE_US);
|
---|
| 582 | if ( !(fPage & X86_PTE_P)
|
---|
| 583 | || (fWrite && !(fPage & X86_PTE_RW))
|
---|
| 584 | || (fUser && !(fPage & X86_PTE_US)) )
|
---|
| 585 | {
|
---|
[13823] | 586 | Log(("PGMIsValidAccess: access violation for %RGv attr %#llx vs %d:%d\n", Addr, fPage, fWrite, fUser));
|
---|
[1] | 587 | return VINF_EM_RAW_GUEST_TRAP;
|
---|
| 588 | }
|
---|
[13816] | 589 | if ( RT_SUCCESS(rc)
|
---|
[1] | 590 | && PAGE_ADDRESS(Addr) != PAGE_ADDRESS(Addr + cbSize))
|
---|
[18992] | 591 | return PGMIsValidAccess(pVCpu, Addr + PAGE_SIZE, (cbSize > PAGE_SIZE) ? cbSize - PAGE_SIZE : 1, fAccess);
|
---|
[1] | 592 | return rc;
|
---|
| 593 | }
|
---|
| 594 |
|
---|
| 595 |
|
---|
| 596 | /**
|
---|
| 597 | * Verifies a range of pages for read or write access
|
---|
| 598 | *
|
---|
| 599 | * Supports handling of pages marked for dirty bit tracking and CSAM
|
---|
| 600 | *
|
---|
| 601 | * @returns VBox status code.
|
---|
[41802] | 602 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 603 | * @param Addr Guest virtual address to check
|
---|
| 604 | * @param cbSize Access size
|
---|
| 605 | * @param fAccess Access type (r/w, user/supervisor (X86_PTE_*))
|
---|
| 606 | */
|
---|
[18992] | 607 | VMMDECL(int) PGMVerifyAccess(PVMCPU pVCpu, RTGCPTR Addr, uint32_t cbSize, uint32_t fAccess)
|
---|
[1] | 608 | {
|
---|
[18992] | 609 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 610 |
|
---|
[13232] | 611 | AssertMsg(!(fAccess & ~(X86_PTE_US | X86_PTE_RW)), ("PGMVerifyAccess: invalid access type %08x\n", fAccess));
|
---|
| 612 |
|
---|
[1] | 613 | /*
|
---|
[13232] | 614 | * Get going.
|
---|
[1] | 615 | */
|
---|
| 616 | uint64_t fPageGst;
|
---|
[18988] | 617 | int rc = PGMGstGetPage(pVCpu, (RTGCPTR)Addr, &fPageGst, NULL);
|
---|
[13816] | 618 | if (RT_FAILURE(rc))
|
---|
[1] | 619 | {
|
---|
[13823] | 620 | Log(("PGMVerifyAccess: access violation for %RGv rc=%d\n", Addr, rc));
|
---|
[1] | 621 | return VINF_EM_RAW_GUEST_TRAP;
|
---|
| 622 | }
|
---|
| 623 |
|
---|
| 624 | /*
|
---|
| 625 | * Check if the access would cause a page fault
|
---|
| 626 | *
|
---|
| 627 | * Note that hypervisor page directories are not present in the guest's tables, so this check
|
---|
| 628 | * is sufficient.
|
---|
| 629 | */
|
---|
| 630 | const bool fWrite = !!(fAccess & X86_PTE_RW);
|
---|
| 631 | const bool fUser = !!(fAccess & X86_PTE_US);
|
---|
[30889] | 632 | if ( !(fPageGst & X86_PTE_P)
|
---|
[1] | 633 | || (fWrite && !(fPageGst & X86_PTE_RW))
|
---|
| 634 | || (fUser && !(fPageGst & X86_PTE_US)) )
|
---|
| 635 | {
|
---|
[13823] | 636 | Log(("PGMVerifyAccess: access violation for %RGv attr %#llx vs %d:%d\n", Addr, fPageGst, fWrite, fUser));
|
---|
[1] | 637 | return VINF_EM_RAW_GUEST_TRAP;
|
---|
| 638 | }
|
---|
| 639 |
|
---|
[31066] | 640 | if (!pVM->pgm.s.fNestedPaging)
|
---|
[1] | 641 | {
|
---|
| 642 | /*
|
---|
[13232] | 643 | * Next step is to verify if we protected this page for dirty bit tracking or for CSAM scanning
|
---|
| 644 | */
|
---|
[18988] | 645 | rc = PGMShwGetPage(pVCpu, (RTGCPTR)Addr, NULL, NULL);
|
---|
[9021] | 646 | if ( rc == VERR_PAGE_NOT_PRESENT
|
---|
| 647 | || rc == VERR_PAGE_TABLE_NOT_PRESENT)
|
---|
| 648 | {
|
---|
| 649 | /*
|
---|
[30889] | 650 | * Page is not present in our page tables.
|
---|
| 651 | * Try to sync it!
|
---|
| 652 | */
|
---|
[9021] | 653 | Assert(X86_TRAP_PF_RW == X86_PTE_RW && X86_TRAP_PF_US == X86_PTE_US);
|
---|
| 654 | uint32_t uErr = fAccess & (X86_TRAP_PF_RW | X86_TRAP_PF_US);
|
---|
[18992] | 655 | rc = PGM_BTH_PFN(VerifyAccessSyncPage, pVCpu)(pVCpu, Addr, fPageGst, uErr);
|
---|
[9021] | 656 | if (rc != VINF_SUCCESS)
|
---|
| 657 | return rc;
|
---|
| 658 | }
|
---|
| 659 | else
|
---|
[13823] | 660 | AssertMsg(rc == VINF_SUCCESS, ("PGMShwGetPage %RGv failed with %Rrc\n", Addr, rc));
|
---|
[1] | 661 | }
|
---|
| 662 |
|
---|
| 663 | #if 0 /* def VBOX_STRICT; triggers too often now */
|
---|
| 664 | /*
|
---|
| 665 | * This check is a bit paranoid, but useful.
|
---|
| 666 | */
|
---|
[30889] | 667 | /* Note! This will assert when writing to monitored pages (a bit annoying actually). */
|
---|
[1] | 668 | uint64_t fPageShw;
|
---|
[18988] | 669 | rc = PGMShwGetPage(pVCpu, (RTGCPTR)Addr, &fPageShw, NULL);
|
---|
[13816] | 670 | if ( (rc == VERR_PAGE_NOT_PRESENT || RT_FAILURE(rc))
|
---|
[1] | 671 | || (fWrite && !(fPageShw & X86_PTE_RW))
|
---|
| 672 | || (fUser && !(fPageShw & X86_PTE_US)) )
|
---|
| 673 | {
|
---|
[13823] | 674 | AssertMsgFailed(("Unexpected access violation for %RGv! rc=%Rrc write=%d user=%d\n",
|
---|
[1] | 675 | Addr, rc, fWrite && !(fPageShw & X86_PTE_RW), fUser && !(fPageShw & X86_PTE_US)));
|
---|
| 676 | return VINF_EM_RAW_GUEST_TRAP;
|
---|
| 677 | }
|
---|
| 678 | #endif
|
---|
| 679 |
|
---|
[13816] | 680 | if ( RT_SUCCESS(rc)
|
---|
[1] | 681 | && ( PAGE_ADDRESS(Addr) != PAGE_ADDRESS(Addr + cbSize - 1)
|
---|
| 682 | || Addr + cbSize < Addr))
|
---|
[2279] | 683 | {
|
---|
| 684 | /* Don't recursively call PGMVerifyAccess as we might run out of stack. */
|
---|
[2298] | 685 | for (;;)
|
---|
[2279] | 686 | {
|
---|
[2324] | 687 | Addr += PAGE_SIZE;
|
---|
| 688 | if (cbSize > PAGE_SIZE)
|
---|
| 689 | cbSize -= PAGE_SIZE;
|
---|
| 690 | else
|
---|
| 691 | cbSize = 1;
|
---|
[18992] | 692 | rc = PGMVerifyAccess(pVCpu, Addr, 1, fAccess);
|
---|
[2279] | 693 | if (rc != VINF_SUCCESS)
|
---|
| 694 | break;
|
---|
[2324] | 695 | if (PAGE_ADDRESS(Addr) == PAGE_ADDRESS(Addr + cbSize - 1))
|
---|
[2298] | 696 | break;
|
---|
[2279] | 697 | }
|
---|
| 698 | }
|
---|
[1] | 699 | return rc;
|
---|
| 700 | }
|
---|
| 701 |
|
---|
[2298] | 702 |
|
---|
[1] | 703 | /**
|
---|
| 704 | * Emulation of the invlpg instruction (HC only actually).
|
---|
| 705 | *
|
---|
[31636] | 706 | * @returns Strict VBox status code, special care required.
|
---|
[13235] | 707 | * @retval VINF_PGM_SYNC_CR3 - handled.
|
---|
| 708 | * @retval VINF_EM_RAW_EMULATE_INSTR - not handled (RC only).
|
---|
| 709 | * @retval VERR_REM_FLUSHED_PAGES_OVERFLOW - not handled.
|
---|
| 710 | *
|
---|
[41802] | 711 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 712 | * @param GCPtrPage Page to invalidate.
|
---|
[13235] | 713 | *
|
---|
| 714 | * @remark ASSUMES the page table entry or page directory is valid. Fairly
|
---|
| 715 | * safe, but there could be edge cases!
|
---|
| 716 | *
|
---|
[1] | 717 | * @todo Flush page or page directory only if necessary!
|
---|
[31636] | 718 | * @todo VBOXSTRICTRC
|
---|
[1] | 719 | */
|
---|
[18992] | 720 | VMMDECL(int) PGMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCPtrPage)
|
---|
[1] | 721 | {
|
---|
[18992] | 722 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[4268] | 723 | int rc;
|
---|
[13823] | 724 | Log3(("PGMInvalidatePage: GCPtrPage=%RGv\n", GCPtrPage));
|
---|
[1] | 725 |
|
---|
[40274] | 726 | #if !defined(IN_RING3) && defined(VBOX_WITH_REM)
|
---|
[4268] | 727 | /*
|
---|
| 728 | * Notify the recompiler so it can record this instruction.
|
---|
| 729 | */
|
---|
[25958] | 730 | REMNotifyInvalidatePage(pVM, GCPtrPage);
|
---|
[13235] | 731 | #endif /* !IN_RING3 */
|
---|
[4268] | 732 |
|
---|
[13235] | 733 |
|
---|
[13832] | 734 | #ifdef IN_RC
|
---|
[13235] | 735 | /*
|
---|
| 736 | * Check for conflicts and pending CR3 monitoring updates.
|
---|
| 737 | */
|
---|
[36891] | 738 | if (pgmMapAreMappingsFloating(pVM))
|
---|
[13235] | 739 | {
|
---|
| 740 | if ( pgmGetMapping(pVM, GCPtrPage)
|
---|
[18988] | 741 | && PGMGstGetPage(pVCpu, GCPtrPage, NULL, NULL) != VERR_PAGE_TABLE_NOT_PRESENT)
|
---|
[13235] | 742 | {
|
---|
| 743 | LogFlow(("PGMGCInvalidatePage: Conflict!\n"));
|
---|
[19141] | 744 | VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
|
---|
[31123] | 745 | STAM_COUNTER_INC(&pVM->pgm.s.CTX_SUFF(pStats)->StatRCInvlPgConflict);
|
---|
[13235] | 746 | return VINF_PGM_SYNC_CR3;
|
---|
| 747 | }
|
---|
| 748 |
|
---|
[18927] | 749 | if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MONITOR_CR3)
|
---|
[13235] | 750 | {
|
---|
| 751 | LogFlow(("PGMGCInvalidatePage: PGM_SYNC_MONITOR_CR3 -> reinterpret instruction in R3\n"));
|
---|
[31123] | 752 | STAM_COUNTER_INC(&pVM->pgm.s.CTX_SUFF(pStats)->StatRCInvlPgSyncMonCR3);
|
---|
[13235] | 753 | return VINF_EM_RAW_EMULATE_INSTR;
|
---|
| 754 | }
|
---|
| 755 | }
|
---|
[13832] | 756 | #endif /* IN_RC */
|
---|
[13235] | 757 |
|
---|
| 758 | /*
|
---|
| 759 | * Call paging mode specific worker.
|
---|
| 760 | */
|
---|
[31123] | 761 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,InvalidatePage), a);
|
---|
[19790] | 762 | pgmLock(pVM);
|
---|
[18992] | 763 | rc = PGM_BTH_PFN(InvalidatePage, pVCpu)(pVCpu, GCPtrPage);
|
---|
[19790] | 764 | pgmUnlock(pVM);
|
---|
[31123] | 765 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,InvalidatePage), a);
|
---|
[1] | 766 |
|
---|
[13235] | 767 | #ifdef IN_RING3
|
---|
[1] | 768 | /*
|
---|
| 769 | * Check if we have a pending update of the CR3 monitoring.
|
---|
| 770 | */
|
---|
[13816] | 771 | if ( RT_SUCCESS(rc)
|
---|
[18927] | 772 | && (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MONITOR_CR3))
|
---|
[1] | 773 | {
|
---|
[18927] | 774 | pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_MONITOR_CR3;
|
---|
[25935] | 775 | Assert(!pVM->pgm.s.fMappingsFixed); Assert(!pVM->pgm.s.fMappingsDisabled);
|
---|
[1] | 776 | }
|
---|
| 777 |
|
---|
| 778 | /*
|
---|
| 779 | * Inform CSAM about the flush
|
---|
[13235] | 780 | *
|
---|
| 781 | * Note: This is to check if monitored pages have been changed; when we implement
|
---|
| 782 | * callbacks for virtual handlers, this is no longer required.
|
---|
[1] | 783 | */
|
---|
| 784 | CSAMR3FlushPage(pVM, GCPtrPage);
|
---|
[13235] | 785 | #endif /* IN_RING3 */
|
---|
[25912] | 786 |
|
---|
| 787 | /* Ignore all irrelevant error codes. */
|
---|
[26150] | 788 | if ( rc == VERR_PAGE_NOT_PRESENT
|
---|
| 789 | || rc == VERR_PAGE_TABLE_NOT_PRESENT
|
---|
| 790 | || rc == VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT
|
---|
| 791 | || rc == VERR_PAGE_MAP_LEVEL4_NOT_PRESENT)
|
---|
[25912] | 792 | rc = VINF_SUCCESS;
|
---|
| 793 |
|
---|
[1] | 794 | return rc;
|
---|
| 795 | }
|
---|
| 796 |
|
---|
| 797 |
|
---|
| 798 | /**
|
---|
| 799 | * Executes an instruction using the interpreter.
|
---|
| 800 | *
|
---|
| 801 | * @returns VBox status code (appropriate for trap handling and GC return).
|
---|
[41783] | 802 | * @param pVM Pointer to the VM.
|
---|
[41802] | 803 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 804 | * @param pRegFrame Register frame.
|
---|
| 805 | * @param pvFault Fault address.
|
---|
| 806 | */
|
---|
[31636] | 807 | VMMDECL(VBOXSTRICTRC) PGMInterpretInstruction(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault)
|
---|
[1] | 808 | {
|
---|
[40450] | 809 | VBOXSTRICTRC rc = EMInterpretInstruction(pVCpu, pRegFrame, pvFault);
|
---|
[1] | 810 | if (rc == VERR_EM_INTERPRETER)
|
---|
| 811 | rc = VINF_EM_RAW_EMULATE_INSTR;
|
---|
| 812 | if (rc != VINF_SUCCESS)
|
---|
[31636] | 813 | Log(("PGMInterpretInstruction: returns %Rrc (pvFault=%RGv)\n", VBOXSTRICTRC_VAL(rc), pvFault));
|
---|
[1] | 814 | return rc;
|
---|
| 815 | }
|
---|
| 816 |
|
---|
| 817 |
|
---|
| 818 | /**
|
---|
| 819 | * Gets effective page information (from the VMM page directory).
|
---|
| 820 | *
|
---|
| 821 | * @returns VBox status.
|
---|
[41802] | 822 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 823 | * @param GCPtr Guest Context virtual address of the page.
|
---|
| 824 | * @param pfFlags Where to store the flags. These are X86_PTE_*.
|
---|
| 825 | * @param pHCPhys Where to store the HC physical address of the page.
|
---|
| 826 | * This is page aligned.
|
---|
| 827 | * @remark You should use PGMMapGetPage() for pages in a mapping.
|
---|
| 828 | */
|
---|
[18988] | 829 | VMMDECL(int) PGMShwGetPage(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys)
|
---|
[1] | 830 | {
|
---|
[20068] | 831 | pgmLock(pVCpu->CTX_SUFF(pVM));
|
---|
| 832 | int rc = PGM_SHW_PFN(GetPage, pVCpu)(pVCpu, GCPtr, pfFlags, pHCPhys);
|
---|
| 833 | pgmUnlock(pVCpu->CTX_SUFF(pVM));
|
---|
| 834 | return rc;
|
---|
[1] | 835 | }
|
---|
| 836 |
|
---|
| 837 |
|
---|
| 838 | /**
|
---|
| 839 | * Modify page flags for a range of pages in the shadow context.
|
---|
| 840 | *
|
---|
| 841 | * The existing flags are ANDed with the fMask and ORed with the fFlags.
|
---|
| 842 | *
|
---|
| 843 | * @returns VBox status code.
|
---|
[41802] | 844 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 845 | * @param GCPtr Virtual address of the first page in the range.
|
---|
| 846 | * @param fFlags The OR mask - page flags X86_PTE_*, excluding the page mask of course.
|
---|
| 847 | * @param fMask The AND mask - page flags X86_PTE_*.
|
---|
| 848 | * Be very CAREFUL when ~'ing constants which could be 32-bit!
|
---|
[30326] | 849 | * @param fOpFlags A combination of the PGM_MK_PK_XXX flags.
|
---|
[1] | 850 | * @remark You must use PGMMapModifyPage() for pages in a mapping.
|
---|
| 851 | */
|
---|
[30326] | 852 | DECLINLINE(int) pdmShwModifyPage(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags)
|
---|
[1] | 853 | {
|
---|
[32036] | 854 | AssertMsg(!(fFlags & X86_PTE_PAE_PG_MASK), ("fFlags=%#llx\n", fFlags));
|
---|
[30326] | 855 | Assert(!(fOpFlags & ~(PGM_MK_PG_IS_MMIO2 | PGM_MK_PG_IS_WRITE_FAULT)));
|
---|
[1] | 856 |
|
---|
[30326] | 857 | GCPtr &= PAGE_BASE_GC_MASK; /** @todo this ain't necessary, right... */
|
---|
[1] | 858 |
|
---|
[19874] | 859 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 860 | pgmLock(pVM);
|
---|
[30326] | 861 | int rc = PGM_SHW_PFN(ModifyPage, pVCpu)(pVCpu, GCPtr, PAGE_SIZE, fFlags, fMask, fOpFlags);
|
---|
[19874] | 862 | pgmUnlock(pVM);
|
---|
| 863 | return rc;
|
---|
[1] | 864 | }
|
---|
| 865 |
|
---|
[30326] | 866 |
|
---|
[9824] | 867 | /**
|
---|
[30326] | 868 | * Changing the page flags for a single page in the shadow page tables so as to
|
---|
| 869 | * make it read-only.
|
---|
| 870 | *
|
---|
| 871 | * @returns VBox status code.
|
---|
[41802] | 872 | * @param pVCpu Pointer to the VMCPU.
|
---|
[30326] | 873 | * @param GCPtr Virtual address of the first page in the range.
|
---|
| 874 | * @param fOpFlags A combination of the PGM_MK_PK_XXX flags.
|
---|
| 875 | */
|
---|
| 876 | VMMDECL(int) PGMShwMakePageReadonly(PVMCPU pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 877 | {
|
---|
| 878 | return pdmShwModifyPage(pVCpu, GCPtr, 0, ~(uint64_t)X86_PTE_RW, fOpFlags);
|
---|
| 879 | }
|
---|
| 880 |
|
---|
| 881 |
|
---|
| 882 | /**
|
---|
| 883 | * Changing the page flags for a single page in the shadow page tables so as to
|
---|
| 884 | * make it writable.
|
---|
| 885 | *
|
---|
| 886 | * The call must know with 101% certainty that the guest page tables maps this
|
---|
| 887 | * as writable too. This function will deal shared, zero and write monitored
|
---|
| 888 | * pages.
|
---|
| 889 | *
|
---|
| 890 | * @returns VBox status code.
|
---|
[41802] | 891 | * @param pVCpu Pointer to the VMCPU.
|
---|
[30326] | 892 | * @param GCPtr Virtual address of the first page in the range.
|
---|
| 893 | * @param fMmio2 Set if it is an MMIO2 page.
|
---|
| 894 | * @param fOpFlags A combination of the PGM_MK_PK_XXX flags.
|
---|
| 895 | */
|
---|
| 896 | VMMDECL(int) PGMShwMakePageWritable(PVMCPU pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 897 | {
|
---|
| 898 | return pdmShwModifyPage(pVCpu, GCPtr, X86_PTE_RW, ~(uint64_t)0, fOpFlags);
|
---|
| 899 | }
|
---|
| 900 |
|
---|
| 901 |
|
---|
| 902 | /**
|
---|
| 903 | * Changing the page flags for a single page in the shadow page tables so as to
|
---|
| 904 | * make it not present.
|
---|
| 905 | *
|
---|
| 906 | * @returns VBox status code.
|
---|
[41802] | 907 | * @param pVCpu Pointer to the VMCPU.
|
---|
[30326] | 908 | * @param GCPtr Virtual address of the first page in the range.
|
---|
| 909 | * @param fOpFlags A combination of the PGM_MK_PG_XXX flags.
|
---|
| 910 | */
|
---|
| 911 | VMMDECL(int) PGMShwMakePageNotPresent(PVMCPU pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 912 | {
|
---|
| 913 | return pdmShwModifyPage(pVCpu, GCPtr, 0, 0, fOpFlags);
|
---|
| 914 | }
|
---|
| 915 |
|
---|
| 916 |
|
---|
| 917 | /**
|
---|
[16232] | 918 | * Gets the shadow page directory for the specified address, PAE.
|
---|
| 919 | *
|
---|
| 920 | * @returns Pointer to the shadow PD.
|
---|
[41802] | 921 | * @param pVCpu Pointer to the VMCPU.
|
---|
[16232] | 922 | * @param GCPtr The address.
|
---|
[32004] | 923 | * @param uGstPdpe Guest PDPT entry. Valid.
|
---|
[16232] | 924 | * @param ppPD Receives address of page directory
|
---|
| 925 | */
|
---|
[31081] | 926 | int pgmShwSyncPaePDPtr(PVMCPU pVCpu, RTGCPTR GCPtr, X86PGPAEUINT uGstPdpe, PX86PDPAE *ppPD)
|
---|
[16232] | 927 | {
|
---|
[16579] | 928 | const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
|
---|
[31167] | 929 | PX86PDPT pPdpt = pgmShwGetPaePDPTPtr(pVCpu);
|
---|
[16579] | 930 | PX86PDPE pPdpe = &pPdpt->a[iPdPt];
|
---|
[18992] | 931 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[16579] | 932 | PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
|
---|
[16232] | 933 | PPGMPOOLPAGE pShwPage;
|
---|
| 934 | int rc;
|
---|
| 935 |
|
---|
[37354] | 936 | PGM_LOCK_ASSERT_OWNER(pVM);
|
---|
[20762] | 937 |
|
---|
[9824] | 938 | /* Allocate page directory if not present. */
|
---|
| 939 | if ( !pPdpe->n.u1Present
|
---|
[32009] | 940 | && !(pPdpe->u & X86_PDPE_PG_MASK))
|
---|
[9824] | 941 | {
|
---|
[16579] | 942 | RTGCPTR64 GCPdPt;
|
---|
| 943 | PGMPOOLKIND enmKind;
|
---|
| 944 |
|
---|
[31066] | 945 | if (pVM->pgm.s.fNestedPaging || !CPUMIsGuestPagingEnabled(pVCpu))
|
---|
[16232] | 946 | {
|
---|
[30861] | 947 | /* AMD-V nested paging or real/protected mode without paging. */
|
---|
[16579] | 948 | GCPdPt = (RTGCPTR64)iPdPt << X86_PDPT_SHIFT;
|
---|
| 949 | enmKind = PGMPOOLKIND_PAE_PD_PHYS;
|
---|
[16232] | 950 | }
|
---|
| 951 | else
|
---|
| 952 | {
|
---|
[18927] | 953 | if (CPUMGetGuestCR4(pVCpu) & X86_CR4_PAE)
|
---|
[16624] | 954 | {
|
---|
[31081] | 955 | if (!(uGstPdpe & X86_PDPE_P))
|
---|
[17593] | 956 | {
|
---|
| 957 | /* PD not present; guest must reload CR3 to change it.
|
---|
| 958 | * No need to monitor anything in this case.
|
---|
| 959 | */
|
---|
[43387] | 960 | Assert(!HMIsEnabled(pVM));
|
---|
[17593] | 961 |
|
---|
[32009] | 962 | GCPdPt = uGstPdpe & X86_PDPE_PG_MASK;
|
---|
[17593] | 963 | enmKind = PGMPOOLKIND_PAE_PD_PHYS;
|
---|
[31081] | 964 | uGstPdpe |= X86_PDPE_P;
|
---|
[17593] | 965 | }
|
---|
| 966 | else
|
---|
| 967 | {
|
---|
[32009] | 968 | GCPdPt = uGstPdpe & X86_PDPE_PG_MASK;
|
---|
[17593] | 969 | enmKind = PGMPOOLKIND_PAE_PD_FOR_PAE_PD;
|
---|
| 970 | }
|
---|
[16624] | 971 | }
|
---|
| 972 | else
|
---|
| 973 | {
|
---|
[18927] | 974 | GCPdPt = CPUMGetGuestCR3(pVCpu);
|
---|
[16626] | 975 | enmKind = (PGMPOOLKIND)(PGMPOOLKIND_PAE_PD0_FOR_32BIT_PD + iPdPt);
|
---|
[16624] | 976 | }
|
---|
[16232] | 977 | }
|
---|
| 978 |
|
---|
[16579] | 979 | /* Create a reference back to the PDPT by using the index in its shadow page. */
|
---|
[41458] | 980 | rc = pgmPoolAlloc(pVM, GCPdPt, enmKind, PGMPOOLACCESS_DONTCARE, PGM_A20_IS_ENABLED(pVCpu),
|
---|
| 981 | pVCpu->pgm.s.CTX_SUFF(pShwPageCR3)->idx, iPdPt, false /*fLockPage*/,
|
---|
| 982 | &pShwPage);
|
---|
[9824] | 983 | AssertRCReturn(rc, rc);
|
---|
[17178] | 984 |
|
---|
| 985 | /* The PD was cached or created; hook it up now. */
|
---|
[32004] | 986 | pPdpe->u |= pShwPage->Core.Key | (uGstPdpe & (X86_PDPE_P | X86_PDPE_A));
|
---|
[17178] | 987 |
|
---|
[17586] | 988 | # if defined(IN_RC)
|
---|
[30861] | 989 | /*
|
---|
| 990 | * In 32 bits PAE mode we *must* invalidate the TLB when changing a
|
---|
| 991 | * PDPT entry; the CPU fetches them only during cr3 load, so any
|
---|
[17178] | 992 | * non-present PDPT will continue to cause page faults.
|
---|
| 993 | */
|
---|
| 994 | ASMReloadCR3();
|
---|
| 995 | # endif
|
---|
[31402] | 996 | PGM_DYNMAP_UNUSED_HINT(pVCpu, pPdpe);
|
---|
[9824] | 997 | }
|
---|
| 998 | else
|
---|
| 999 | {
|
---|
[32009] | 1000 | pShwPage = pgmPoolGetPage(pPool, pPdpe->u & X86_PDPE_PG_MASK);
|
---|
[39402] | 1001 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[32009] | 1002 | Assert((pPdpe->u & X86_PDPE_PG_MASK) == pShwPage->Core.Key);
|
---|
[17178] | 1003 |
|
---|
[18731] | 1004 | pgmPoolCacheUsed(pPool, pShwPage);
|
---|
[9824] | 1005 | }
|
---|
[31170] | 1006 | *ppPD = (PX86PDPAE)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[9824] | 1007 | return VINF_SUCCESS;
|
---|
| 1008 | }
|
---|
| 1009 |
|
---|
[17305] | 1010 |
|
---|
[9824] | 1011 | /**
|
---|
[16203] | 1012 | * Gets the pointer to the shadow page directory entry for an address, PAE.
|
---|
| 1013 | *
|
---|
| 1014 | * @returns Pointer to the PDE.
|
---|
[31167] | 1015 | * @param pVCpu The current CPU.
|
---|
[16203] | 1016 | * @param GCPtr The address.
|
---|
| 1017 | * @param ppShwPde Receives the address of the pgm pool page for the shadow page directory
|
---|
| 1018 | */
|
---|
[31167] | 1019 | DECLINLINE(int) pgmShwGetPaePoolPagePD(PVMCPU pVCpu, RTGCPTR GCPtr, PPGMPOOLPAGE *ppShwPde)
|
---|
[16203] | 1020 | {
|
---|
| 1021 | const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
|
---|
[31167] | 1022 | PX86PDPT pPdpt = pgmShwGetPaePDPTPtr(pVCpu);
|
---|
| 1023 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[20762] | 1024 |
|
---|
[37354] | 1025 | PGM_LOCK_ASSERT_OWNER(pVM);
|
---|
[20762] | 1026 |
|
---|
[16203] | 1027 | AssertReturn(pPdpt, VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT); /* can't happen */
|
---|
| 1028 | if (!pPdpt->a[iPdPt].n.u1Present)
|
---|
[17158] | 1029 | {
|
---|
| 1030 | LogFlow(("pgmShwGetPaePoolPagePD: PD %d not present (%RX64)\n", iPdPt, pPdpt->a[iPdPt].u));
|
---|
[16203] | 1031 | return VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT;
|
---|
[17158] | 1032 | }
|
---|
[32009] | 1033 | AssertMsg(pPdpt->a[iPdPt].u & X86_PDPE_PG_MASK, ("GCPtr=%RGv\n", GCPtr));
|
---|
[16203] | 1034 |
|
---|
| 1035 | /* Fetch the pgm pool shadow descriptor. */
|
---|
[32009] | 1036 | PPGMPOOLPAGE pShwPde = pgmPoolGetPage(pVM->pgm.s.CTX_SUFF(pPool), pPdpt->a[iPdPt].u & X86_PDPE_PG_MASK);
|
---|
[39402] | 1037 | AssertReturn(pShwPde, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[16203] | 1038 |
|
---|
| 1039 | *ppShwPde = pShwPde;
|
---|
| 1040 | return VINF_SUCCESS;
|
---|
| 1041 | }
|
---|
| 1042 |
|
---|
[13832] | 1043 | #ifndef IN_RC
|
---|
[13188] | 1044 |
|
---|
[8533] | 1045 | /**
|
---|
[13935] | 1046 | * Syncs the SHADOW page directory pointer for the specified address.
|
---|
[8533] | 1047 | *
|
---|
[13935] | 1048 | * Allocates backing pages in case the PDPT or PML4 entry is missing.
|
---|
| 1049 | *
|
---|
| 1050 | * The caller is responsible for making sure the guest has a valid PD before
|
---|
| 1051 | * calling this function.
|
---|
| 1052 | *
|
---|
[8533] | 1053 | * @returns VBox status.
|
---|
[41802] | 1054 | * @param pVCpu Pointer to the VMCPU.
|
---|
[8533] | 1055 | * @param GCPtr The address.
|
---|
[31997] | 1056 | * @param uGstPml4e Guest PML4 entry (valid).
|
---|
| 1057 | * @param uGstPdpe Guest PDPT entry (valid).
|
---|
[8533] | 1058 | * @param ppPD Receives address of page directory
|
---|
| 1059 | */
|
---|
[31081] | 1060 | static int pgmShwSyncLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, X86PGPAEUINT uGstPml4e, X86PGPAEUINT uGstPdpe, PX86PDPAE *ppPD)
|
---|
[8533] | 1061 | {
|
---|
[18992] | 1062 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[18927] | 1063 | PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
|
---|
[13991] | 1064 | const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
|
---|
[31167] | 1065 | PX86PML4E pPml4e = pgmShwGetLongModePML4EPtr(pVCpu, iPml4);
|
---|
[31066] | 1066 | bool fNestedPagingOrNoGstPaging = pVM->pgm.s.fNestedPaging || !CPUMIsGuestPagingEnabled(pVCpu);
|
---|
[8533] | 1067 | PPGMPOOLPAGE pShwPage;
|
---|
| 1068 | int rc;
|
---|
[1] | 1069 |
|
---|
[37354] | 1070 | PGM_LOCK_ASSERT_OWNER(pVM);
|
---|
[20762] | 1071 |
|
---|
[9755] | 1072 | /* Allocate page directory pointer table if not present. */
|
---|
[8533] | 1073 | if ( !pPml4e->n.u1Present
|
---|
[32000] | 1074 | && !(pPml4e->u & X86_PML4E_PG_MASK))
|
---|
[8533] | 1075 | {
|
---|
[16579] | 1076 | RTGCPTR64 GCPml4;
|
---|
| 1077 | PGMPOOLKIND enmKind;
|
---|
| 1078 |
|
---|
[18927] | 1079 | Assert(pVCpu->pgm.s.CTX_SUFF(pShwPageCR3));
|
---|
[16579] | 1080 |
|
---|
[25866] | 1081 | if (fNestedPagingOrNoGstPaging)
|
---|
[16579] | 1082 | {
|
---|
| 1083 | /* AMD-V nested paging or real/protected mode without paging */
|
---|
| 1084 | GCPml4 = (RTGCPTR64)iPml4 << X86_PML4_SHIFT;
|
---|
| 1085 | enmKind = PGMPOOLKIND_64BIT_PDPT_FOR_PHYS;
|
---|
| 1086 | }
|
---|
| 1087 | else
|
---|
| 1088 | {
|
---|
[32000] | 1089 | GCPml4 = uGstPml4e & X86_PML4E_PG_MASK;
|
---|
[16579] | 1090 | enmKind = PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT;
|
---|
| 1091 | }
|
---|
| 1092 |
|
---|
| 1093 | /* Create a reference back to the PDPT by using the index in its shadow page. */
|
---|
[41458] | 1094 | rc = pgmPoolAlloc(pVM, GCPml4, enmKind, PGMPOOLACCESS_DONTCARE, PGM_A20_IS_ENABLED(pVCpu),
|
---|
| 1095 | pVCpu->pgm.s.CTX_SUFF(pShwPageCR3)->idx, iPml4, false /*fLockPage*/,
|
---|
| 1096 | &pShwPage);
|
---|
[8533] | 1097 | AssertRCReturn(rc, rc);
|
---|
| 1098 | }
|
---|
| 1099 | else
|
---|
| 1100 | {
|
---|
[32000] | 1101 | pShwPage = pgmPoolGetPage(pPool, pPml4e->u & X86_PML4E_PG_MASK);
|
---|
[39402] | 1102 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[18731] | 1103 |
|
---|
| 1104 | pgmPoolCacheUsed(pPool, pShwPage);
|
---|
[8533] | 1105 | }
|
---|
[9685] | 1106 | /* The PDPT was cached or created; hook it up now. */
|
---|
[31997] | 1107 | pPml4e->u |= pShwPage->Core.Key | (uGstPml4e & pVCpu->pgm.s.fGstAmd64ShadowedPml4eMask);
|
---|
[8533] | 1108 |
|
---|
| 1109 | const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
|
---|
[31170] | 1110 | PX86PDPT pPdpt = (PX86PDPT)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[8533] | 1111 | PX86PDPE pPdpe = &pPdpt->a[iPdPt];
|
---|
| 1112 |
|
---|
[9755] | 1113 | /* Allocate page directory if not present. */
|
---|
[8533] | 1114 | if ( !pPdpe->n.u1Present
|
---|
[32009] | 1115 | && !(pPdpe->u & X86_PDPE_PG_MASK))
|
---|
[8533] | 1116 | {
|
---|
[16579] | 1117 | RTGCPTR64 GCPdPt;
|
---|
| 1118 | PGMPOOLKIND enmKind;
|
---|
| 1119 |
|
---|
[25866] | 1120 | if (fNestedPagingOrNoGstPaging)
|
---|
[16579] | 1121 | {
|
---|
| 1122 | /* AMD-V nested paging or real/protected mode without paging */
|
---|
| 1123 | GCPdPt = (RTGCPTR64)iPdPt << X86_PDPT_SHIFT;
|
---|
| 1124 | enmKind = PGMPOOLKIND_64BIT_PD_FOR_PHYS;
|
---|
| 1125 | }
|
---|
| 1126 | else
|
---|
| 1127 | {
|
---|
[32009] | 1128 | GCPdPt = uGstPdpe & X86_PDPE_PG_MASK;
|
---|
[16579] | 1129 | enmKind = PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD;
|
---|
| 1130 | }
|
---|
| 1131 |
|
---|
| 1132 | /* Create a reference back to the PDPT by using the index in its shadow page. */
|
---|
[41458] | 1133 | rc = pgmPoolAlloc(pVM, GCPdPt, enmKind, PGMPOOLACCESS_DONTCARE, PGM_A20_IS_ENABLED(pVCpu),
|
---|
| 1134 | pShwPage->idx, iPdPt, false /*fLockPage*/,
|
---|
| 1135 | &pShwPage);
|
---|
[8533] | 1136 | AssertRCReturn(rc, rc);
|
---|
| 1137 | }
|
---|
| 1138 | else
|
---|
| 1139 | {
|
---|
[32009] | 1140 | pShwPage = pgmPoolGetPage(pPool, pPdpe->u & X86_PDPE_PG_MASK);
|
---|
[39402] | 1141 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[18731] | 1142 |
|
---|
| 1143 | pgmPoolCacheUsed(pPool, pShwPage);
|
---|
[8533] | 1144 | }
|
---|
[9685] | 1145 | /* The PD was cached or created; hook it up now. */
|
---|
[31997] | 1146 | pPdpe->u |= pShwPage->Core.Key | (uGstPdpe & pVCpu->pgm.s.fGstAmd64ShadowedPdpeMask);
|
---|
[8533] | 1147 |
|
---|
[31170] | 1148 | *ppPD = (PX86PDPAE)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[8533] | 1149 | return VINF_SUCCESS;
|
---|
| 1150 | }
|
---|
[9570] | 1151 |
|
---|
[13232] | 1152 |
|
---|
[9570] | 1153 | /**
|
---|
[13991] | 1154 | * Gets the SHADOW page directory pointer for the specified address (long mode).
|
---|
[9570] | 1155 | *
|
---|
| 1156 | * @returns VBox status.
|
---|
[41802] | 1157 | * @param pVCpu Pointer to the VMCPU.
|
---|
[9570] | 1158 | * @param GCPtr The address.
|
---|
| 1159 | * @param ppPdpt Receives address of pdpt
|
---|
| 1160 | * @param ppPD Receives address of page directory
|
---|
| 1161 | */
|
---|
[18992] | 1162 | DECLINLINE(int) pgmShwGetLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPT *ppPdpt, PX86PDPAE *ppPD)
|
---|
[9570] | 1163 | {
|
---|
[13991] | 1164 | const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
|
---|
[31167] | 1165 | PCX86PML4E pPml4e = pgmShwGetLongModePML4EPtr(pVCpu, iPml4);
|
---|
[20762] | 1166 |
|
---|
[39034] | 1167 | PGM_LOCK_ASSERT_OWNER(pVCpu->CTX_SUFF(pVM));
|
---|
[20762] | 1168 |
|
---|
[39402] | 1169 | AssertReturn(pPml4e, VERR_PGM_PML4_MAPPING);
|
---|
[13991] | 1170 | if (ppPml4e)
|
---|
| 1171 | *ppPml4e = (PX86PML4E)pPml4e;
|
---|
[18729] | 1172 |
|
---|
[26180] | 1173 | Log4(("pgmShwGetLongModePDPtr %RGv (%RHv) %RX64\n", GCPtr, pPml4e, pPml4e->u));
|
---|
[18729] | 1174 |
|
---|
[9570] | 1175 | if (!pPml4e->n.u1Present)
|
---|
[9589] | 1176 | return VERR_PAGE_MAP_LEVEL4_NOT_PRESENT;
|
---|
[9570] | 1177 |
|
---|
[18992] | 1178 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 1179 | PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
|
---|
[32000] | 1180 | PPGMPOOLPAGE pShwPage = pgmPoolGetPage(pPool, pPml4e->u & X86_PML4E_PG_MASK);
|
---|
[39402] | 1181 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[9570] | 1182 |
|
---|
[13991] | 1183 | const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
|
---|
[31170] | 1184 | PCX86PDPT pPdpt = *ppPdpt = (PX86PDPT)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[13991] | 1185 | if (!pPdpt->a[iPdPt].n.u1Present)
|
---|
[9589] | 1186 | return VERR_PAGE_DIRECTORY_PTR_NOT_PRESENT;
|
---|
[9570] | 1187 |
|
---|
[32009] | 1188 | pShwPage = pgmPoolGetPage(pPool, pPdpt->a[iPdPt].u & X86_PDPE_PG_MASK);
|
---|
[39402] | 1189 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[9570] | 1190 |
|
---|
[31170] | 1191 | *ppPD = (PX86PDPAE)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[31997] | 1192 | Log4(("pgmShwGetLongModePDPtr %RGv -> *ppPD=%p PDE=%p/%RX64\n", GCPtr, *ppPD, &(*ppPD)->a[(GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK], (*ppPD)->a[(GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK].u));
|
---|
[9570] | 1193 | return VINF_SUCCESS;
|
---|
| 1194 | }
|
---|
[12936] | 1195 |
|
---|
[13232] | 1196 |
|
---|
[12936] | 1197 | /**
|
---|
| 1198 | * Syncs the SHADOW EPT page directory pointer for the specified address. Allocates
|
---|
[12989] | 1199 | * backing pages in case the PDPT or PML4 entry is missing.
|
---|
[12936] | 1200 | *
|
---|
| 1201 | * @returns VBox status.
|
---|
[41802] | 1202 | * @param pVCpu Pointer to the VMCPU.
|
---|
[12936] | 1203 | * @param GCPtr The address.
|
---|
| 1204 | * @param ppPdpt Receives address of pdpt
|
---|
| 1205 | * @param ppPD Receives address of page directory
|
---|
| 1206 | */
|
---|
[31066] | 1207 | static int pgmShwGetEPTPDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PEPTPDPT *ppPdpt, PEPTPD *ppPD)
|
---|
[12936] | 1208 | {
|
---|
[18992] | 1209 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[13991] | 1210 | const unsigned iPml4 = (GCPtr >> EPT_PML4_SHIFT) & EPT_PML4_MASK;
|
---|
[18927] | 1211 | PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
|
---|
[13991] | 1212 | PEPTPML4 pPml4;
|
---|
[12936] | 1213 | PEPTPML4E pPml4e;
|
---|
| 1214 | PPGMPOOLPAGE pShwPage;
|
---|
| 1215 | int rc;
|
---|
| 1216 |
|
---|
[31066] | 1217 | Assert(pVM->pgm.s.fNestedPaging);
|
---|
[37354] | 1218 | PGM_LOCK_ASSERT_OWNER(pVM);
|
---|
[13991] | 1219 |
|
---|
[31170] | 1220 | pPml4 = (PEPTPML4)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pVCpu->pgm.s.CTX_SUFF(pShwPageCR3));
|
---|
[12936] | 1221 | Assert(pPml4);
|
---|
| 1222 |
|
---|
| 1223 | /* Allocate page directory pointer table if not present. */
|
---|
[13991] | 1224 | pPml4e = &pPml4->a[iPml4];
|
---|
[12936] | 1225 | if ( !pPml4e->n.u1Present
|
---|
| 1226 | && !(pPml4e->u & EPT_PML4E_PG_MASK))
|
---|
| 1227 | {
|
---|
| 1228 | Assert(!(pPml4e->u & EPT_PML4E_PG_MASK));
|
---|
[15990] | 1229 | RTGCPTR64 GCPml4 = (RTGCPTR64)iPml4 << EPT_PML4_SHIFT;
|
---|
[12936] | 1230 |
|
---|
[41458] | 1231 | rc = pgmPoolAlloc(pVM, GCPml4, PGMPOOLKIND_EPT_PDPT_FOR_PHYS, PGMPOOLACCESS_DONTCARE, PGM_A20_IS_ENABLED(pVCpu),
|
---|
| 1232 | PGMPOOL_IDX_NESTED_ROOT, iPml4, false /*fLockPage*/,
|
---|
| 1233 | &pShwPage);
|
---|
[12936] | 1234 | AssertRCReturn(rc, rc);
|
---|
| 1235 | }
|
---|
| 1236 | else
|
---|
| 1237 | {
|
---|
| 1238 | pShwPage = pgmPoolGetPage(pPool, pPml4e->u & EPT_PML4E_PG_MASK);
|
---|
[39402] | 1239 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[18731] | 1240 |
|
---|
| 1241 | pgmPoolCacheUsed(pPool, pShwPage);
|
---|
[12936] | 1242 | }
|
---|
| 1243 | /* The PDPT was cached or created; hook it up now and fill with the default value. */
|
---|
| 1244 | pPml4e->u = pShwPage->Core.Key;
|
---|
| 1245 | pPml4e->n.u1Present = 1;
|
---|
| 1246 | pPml4e->n.u1Write = 1;
|
---|
| 1247 | pPml4e->n.u1Execute = 1;
|
---|
| 1248 |
|
---|
| 1249 | const unsigned iPdPt = (GCPtr >> EPT_PDPT_SHIFT) & EPT_PDPT_MASK;
|
---|
[31170] | 1250 | PEPTPDPT pPdpt = (PEPTPDPT)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[12936] | 1251 | PEPTPDPTE pPdpe = &pPdpt->a[iPdPt];
|
---|
| 1252 |
|
---|
| 1253 | if (ppPdpt)
|
---|
| 1254 | *ppPdpt = pPdpt;
|
---|
| 1255 |
|
---|
| 1256 | /* Allocate page directory if not present. */
|
---|
| 1257 | if ( !pPdpe->n.u1Present
|
---|
| 1258 | && !(pPdpe->u & EPT_PDPTE_PG_MASK))
|
---|
| 1259 | {
|
---|
[15990] | 1260 | RTGCPTR64 GCPdPt = (RTGCPTR64)iPdPt << EPT_PDPT_SHIFT;
|
---|
[41458] | 1261 | rc = pgmPoolAlloc(pVM, GCPdPt, PGMPOOLKIND_EPT_PD_FOR_PHYS, PGMPOOLACCESS_DONTCARE, PGM_A20_IS_ENABLED(pVCpu),
|
---|
| 1262 | pShwPage->idx, iPdPt, false /*fLockPage*/,
|
---|
| 1263 | &pShwPage);
|
---|
[12936] | 1264 | AssertRCReturn(rc, rc);
|
---|
| 1265 | }
|
---|
| 1266 | else
|
---|
| 1267 | {
|
---|
[13122] | 1268 | pShwPage = pgmPoolGetPage(pPool, pPdpe->u & EPT_PDPTE_PG_MASK);
|
---|
[39402] | 1269 | AssertReturn(pShwPage, VERR_PGM_POOL_GET_PAGE_FAILED);
|
---|
[18731] | 1270 |
|
---|
| 1271 | pgmPoolCacheUsed(pPool, pShwPage);
|
---|
[12936] | 1272 | }
|
---|
| 1273 | /* The PD was cached or created; hook it up now and fill with the default value. */
|
---|
| 1274 | pPdpe->u = pShwPage->Core.Key;
|
---|
| 1275 | pPdpe->n.u1Present = 1;
|
---|
| 1276 | pPdpe->n.u1Write = 1;
|
---|
| 1277 | pPdpe->n.u1Execute = 1;
|
---|
| 1278 |
|
---|
[31170] | 1279 | *ppPD = (PEPTPD)PGMPOOL_PAGE_2_PTR_V2(pVM, pVCpu, pShwPage);
|
---|
[12936] | 1280 | return VINF_SUCCESS;
|
---|
| 1281 | }
|
---|
| 1282 |
|
---|
[13832] | 1283 | #endif /* IN_RC */
|
---|
[8533] | 1284 |
|
---|
[31565] | 1285 | #ifdef IN_RING0
|
---|
[1] | 1286 | /**
|
---|
[31565] | 1287 | * Synchronizes a range of nested page table entries.
|
---|
| 1288 | *
|
---|
| 1289 | * The caller must own the PGM lock.
|
---|
| 1290 | *
|
---|
| 1291 | * @param pVCpu The current CPU.
|
---|
| 1292 | * @param GCPhys Where to start.
|
---|
| 1293 | * @param cPages How many pages which entries should be synced.
|
---|
| 1294 | * @param enmShwPagingMode The shadow paging mode (PGMMODE_EPT for VT-x,
|
---|
| 1295 | * host paging mode for AMD-V).
|
---|
| 1296 | */
|
---|
| 1297 | int pgmShwSyncNestedPageLocked(PVMCPU pVCpu, RTGCPHYS GCPhysFault, uint32_t cPages, PGMMODE enmShwPagingMode)
|
---|
| 1298 | {
|
---|
[37354] | 1299 | PGM_LOCK_ASSERT_OWNER(pVCpu->CTX_SUFF(pVM));
|
---|
[31565] | 1300 |
|
---|
| 1301 | int rc;
|
---|
| 1302 | switch (enmShwPagingMode)
|
---|
| 1303 | {
|
---|
| 1304 | case PGMMODE_32_BIT:
|
---|
| 1305 | {
|
---|
| 1306 | X86PDE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
|
---|
| 1307 | rc = PGM_BTH_NAME_32BIT_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
|
---|
| 1308 | break;
|
---|
| 1309 | }
|
---|
| 1310 |
|
---|
| 1311 | case PGMMODE_PAE:
|
---|
| 1312 | case PGMMODE_PAE_NX:
|
---|
| 1313 | {
|
---|
| 1314 | X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
|
---|
| 1315 | rc = PGM_BTH_NAME_PAE_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
|
---|
| 1316 | break;
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
| 1319 | case PGMMODE_AMD64:
|
---|
| 1320 | case PGMMODE_AMD64_NX:
|
---|
| 1321 | {
|
---|
| 1322 | X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
|
---|
| 1323 | rc = PGM_BTH_NAME_AMD64_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
|
---|
| 1324 | break;
|
---|
| 1325 | }
|
---|
| 1326 |
|
---|
| 1327 | case PGMMODE_EPT:
|
---|
| 1328 | {
|
---|
| 1329 | X86PDEPAE PdeDummy = { X86_PDE_P | X86_PDE_US | X86_PDE_RW | X86_PDE_A };
|
---|
| 1330 | rc = PGM_BTH_NAME_EPT_PROT(SyncPage)(pVCpu, PdeDummy, GCPhysFault, cPages, ~0U /*uErr*/);
|
---|
| 1331 | break;
|
---|
| 1332 | }
|
---|
| 1333 |
|
---|
| 1334 | default:
|
---|
[39402] | 1335 | AssertMsgFailedReturn(("%d\n", enmShwPagingMode), VERR_IPE_NOT_REACHED_DEFAULT_CASE);
|
---|
[31565] | 1336 | }
|
---|
| 1337 | return rc;
|
---|
| 1338 | }
|
---|
| 1339 | #endif /* IN_RING0 */
|
---|
| 1340 |
|
---|
| 1341 |
|
---|
| 1342 | /**
|
---|
[1] | 1343 | * Gets effective Guest OS page information.
|
---|
| 1344 | *
|
---|
| 1345 | * When GCPtr is in a big page, the function will return as if it was a normal
|
---|
| 1346 | * 4KB page. If the need for distinguishing between big and normal page becomes
|
---|
| 1347 | * necessary at a later point, a PGMGstGetPage() will be created for that
|
---|
| 1348 | * purpose.
|
---|
| 1349 | *
|
---|
| 1350 | * @returns VBox status.
|
---|
[37354] | 1351 | * @param pVCpu The current CPU.
|
---|
[1] | 1352 | * @param GCPtr Guest Context virtual address of the page.
|
---|
| 1353 | * @param pfFlags Where to store the flags. These are X86_PTE_*, even for big pages.
|
---|
| 1354 | * @param pGCPhys Where to store the GC physical address of the page.
|
---|
| 1355 | * This is page aligned. The fact that the
|
---|
| 1356 | */
|
---|
[18988] | 1357 | VMMDECL(int) PGMGstGetPage(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys)
|
---|
[1] | 1358 | {
|
---|
[37354] | 1359 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[18988] | 1360 | return PGM_GST_PFN(GetPage, pVCpu)(pVCpu, GCPtr, pfFlags, pGCPhys);
|
---|
[1] | 1361 | }
|
---|
| 1362 |
|
---|
| 1363 |
|
---|
| 1364 | /**
|
---|
| 1365 | * Checks if the page is present.
|
---|
| 1366 | *
|
---|
| 1367 | * @returns true if the page is present.
|
---|
| 1368 | * @returns false if the page is not present.
|
---|
[41802] | 1369 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1370 | * @param GCPtr Address within the page.
|
---|
| 1371 | */
|
---|
[18988] | 1372 | VMMDECL(bool) PGMGstIsPagePresent(PVMCPU pVCpu, RTGCPTR GCPtr)
|
---|
[1] | 1373 | {
|
---|
[37354] | 1374 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[18988] | 1375 | int rc = PGMGstGetPage(pVCpu, GCPtr, NULL, NULL);
|
---|
[13816] | 1376 | return RT_SUCCESS(rc);
|
---|
[1] | 1377 | }
|
---|
| 1378 |
|
---|
| 1379 |
|
---|
| 1380 | /**
|
---|
| 1381 | * Sets (replaces) the page flags for a range of pages in the guest's tables.
|
---|
| 1382 | *
|
---|
| 1383 | * @returns VBox status.
|
---|
[41802] | 1384 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1385 | * @param GCPtr The address of the first page.
|
---|
| 1386 | * @param cb The size of the range in bytes.
|
---|
| 1387 | * @param fFlags Page flags X86_PTE_*, excluding the page mask of course.
|
---|
| 1388 | */
|
---|
[18988] | 1389 | VMMDECL(int) PGMGstSetPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags)
|
---|
[1] | 1390 | {
|
---|
[37354] | 1391 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[18988] | 1392 | return PGMGstModifyPage(pVCpu, GCPtr, cb, fFlags, 0);
|
---|
[1] | 1393 | }
|
---|
| 1394 |
|
---|
| 1395 |
|
---|
| 1396 | /**
|
---|
| 1397 | * Modify page flags for a range of pages in the guest's tables
|
---|
| 1398 | *
|
---|
| 1399 | * The existing flags are ANDed with the fMask and ORed with the fFlags.
|
---|
| 1400 | *
|
---|
| 1401 | * @returns VBox status code.
|
---|
[41802] | 1402 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1403 | * @param GCPtr Virtual address of the first page in the range.
|
---|
| 1404 | * @param cb Size (in bytes) of the range to apply the modification to.
|
---|
| 1405 | * @param fFlags The OR mask - page flags X86_PTE_*, excluding the page mask of course.
|
---|
| 1406 | * @param fMask The AND mask - page flags X86_PTE_*, excluding the page mask of course.
|
---|
| 1407 | * Be very CAREFUL when ~'ing constants which could be 32-bit!
|
---|
| 1408 | */
|
---|
[18988] | 1409 | VMMDECL(int) PGMGstModifyPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask)
|
---|
[1] | 1410 | {
|
---|
[31123] | 1411 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,GstModifyPage), a);
|
---|
[37354] | 1412 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[1] | 1413 |
|
---|
| 1414 | /*
|
---|
| 1415 | * Validate input.
|
---|
| 1416 | */
|
---|
[32036] | 1417 | AssertMsg(!(fFlags & X86_PTE_PAE_PG_MASK), ("fFlags=%#llx\n", fFlags));
|
---|
[13232] | 1418 | Assert(cb);
|
---|
[1] | 1419 |
|
---|
[13823] | 1420 | LogFlow(("PGMGstModifyPage %RGv %d bytes fFlags=%08llx fMask=%08llx\n", GCPtr, cb, fFlags, fMask));
|
---|
[1] | 1421 |
|
---|
| 1422 | /*
|
---|
| 1423 | * Adjust input.
|
---|
| 1424 | */
|
---|
[13936] | 1425 | cb += GCPtr & PAGE_OFFSET_MASK;
|
---|
[1] | 1426 | cb = RT_ALIGN_Z(cb, PAGE_SIZE);
|
---|
[13936] | 1427 | GCPtr = (GCPtr & PAGE_BASE_GC_MASK);
|
---|
[1] | 1428 |
|
---|
| 1429 | /*
|
---|
| 1430 | * Call worker.
|
---|
| 1431 | */
|
---|
[18988] | 1432 | int rc = PGM_GST_PFN(ModifyPage, pVCpu)(pVCpu, GCPtr, cb, fFlags, fMask);
|
---|
[1] | 1433 |
|
---|
[31123] | 1434 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,GstModifyPage), a);
|
---|
[1] | 1435 | return rc;
|
---|
| 1436 | }
|
---|
| 1437 |
|
---|
[13232] | 1438 |
|
---|
[30830] | 1439 | #ifndef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
|
---|
[30889] | 1440 |
|
---|
[13198] | 1441 | /**
|
---|
[18131] | 1442 | * Performs the lazy mapping of the 32-bit guest PD.
|
---|
| 1443 | *
|
---|
[30889] | 1444 | * @returns VBox status code.
|
---|
| 1445 | * @param pVCpu The current CPU.
|
---|
| 1446 | * @param ppPd Where to return the pointer to the mapping. This is
|
---|
| 1447 | * always set.
|
---|
[18125] | 1448 | */
|
---|
[30889] | 1449 | int pgmGstLazyMap32BitPD(PVMCPU pVCpu, PX86PD *ppPd)
|
---|
[18125] | 1450 | {
|
---|
[30889] | 1451 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[18125] | 1452 | pgmLock(pVM);
|
---|
| 1453 |
|
---|
[30889] | 1454 | Assert(!pVCpu->pgm.s.CTX_SUFF(pGst32BitPd));
|
---|
[18125] | 1455 |
|
---|
[30889] | 1456 | RTGCPHYS GCPhysCR3 = pVCpu->pgm.s.GCPhysCR3 & X86_CR3_PAGE_MASK;
|
---|
| 1457 | PPGMPAGE pPage;
|
---|
[36891] | 1458 | int rc = pgmPhysGetPageEx(pVM, GCPhysCR3, &pPage);
|
---|
[30889] | 1459 | if (RT_SUCCESS(rc))
|
---|
| 1460 | {
|
---|
| 1461 | RTHCPTR HCPtrGuestCR3;
|
---|
[38953] | 1462 | rc = pgmPhysGCPhys2CCPtrInternalDepr(pVM, pPage, GCPhysCR3, (void **)&HCPtrGuestCR3);
|
---|
[30889] | 1463 | if (RT_SUCCESS(rc))
|
---|
| 1464 | {
|
---|
| 1465 | pVCpu->pgm.s.pGst32BitPdR3 = (R3PTRTYPE(PX86PD))HCPtrGuestCR3;
|
---|
[18125] | 1466 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
[30889] | 1467 | pVCpu->pgm.s.pGst32BitPdR0 = (R0PTRTYPE(PX86PD))HCPtrGuestCR3;
|
---|
[18125] | 1468 | # endif
|
---|
[30889] | 1469 | *ppPd = (PX86PD)HCPtrGuestCR3;
|
---|
[18125] | 1470 |
|
---|
[30889] | 1471 | pgmUnlock(pVM);
|
---|
| 1472 | return VINF_SUCCESS;
|
---|
| 1473 | }
|
---|
| 1474 |
|
---|
| 1475 | AssertRC(rc);
|
---|
| 1476 | }
|
---|
[18125] | 1477 | pgmUnlock(pVM);
|
---|
[30889] | 1478 |
|
---|
| 1479 | *ppPd = NULL;
|
---|
| 1480 | return rc;
|
---|
[18125] | 1481 | }
|
---|
| 1482 |
|
---|
| 1483 |
|
---|
| 1484 | /**
|
---|
| 1485 | * Performs the lazy mapping of the PAE guest PDPT.
|
---|
[18131] | 1486 | *
|
---|
[30889] | 1487 | * @returns VBox status code.
|
---|
| 1488 | * @param pVCpu The current CPU.
|
---|
| 1489 | * @param ppPdpt Where to return the pointer to the mapping. This is
|
---|
| 1490 | * always set.
|
---|
[18125] | 1491 | */
|
---|
[30889] | 1492 | int pgmGstLazyMapPaePDPT(PVMCPU pVCpu, PX86PDPT *ppPdpt)
|
---|
[18125] | 1493 | {
|
---|
[30889] | 1494 | Assert(!pVCpu->pgm.s.CTX_SUFF(pGstPaePdpt));
|
---|
| 1495 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[18125] | 1496 | pgmLock(pVM);
|
---|
| 1497 |
|
---|
[30889] | 1498 | RTGCPHYS GCPhysCR3 = pVCpu->pgm.s.GCPhysCR3 & X86_CR3_PAE_PAGE_MASK;
|
---|
| 1499 | PPGMPAGE pPage;
|
---|
[36891] | 1500 | int rc = pgmPhysGetPageEx(pVM, GCPhysCR3, &pPage);
|
---|
[30889] | 1501 | if (RT_SUCCESS(rc))
|
---|
| 1502 | {
|
---|
| 1503 | RTHCPTR HCPtrGuestCR3;
|
---|
[38953] | 1504 | rc = pgmPhysGCPhys2CCPtrInternalDepr(pVM, pPage, GCPhysCR3, (void **)&HCPtrGuestCR3);
|
---|
[30889] | 1505 | if (RT_SUCCESS(rc))
|
---|
| 1506 | {
|
---|
| 1507 | pVCpu->pgm.s.pGstPaePdptR3 = (R3PTRTYPE(PX86PDPT))HCPtrGuestCR3;
|
---|
[18125] | 1508 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
[30889] | 1509 | pVCpu->pgm.s.pGstPaePdptR0 = (R0PTRTYPE(PX86PDPT))HCPtrGuestCR3;
|
---|
[18125] | 1510 | # endif
|
---|
[30889] | 1511 | *ppPdpt = (PX86PDPT)HCPtrGuestCR3;
|
---|
[18125] | 1512 |
|
---|
[30889] | 1513 | pgmUnlock(pVM);
|
---|
| 1514 | return VINF_SUCCESS;
|
---|
| 1515 | }
|
---|
| 1516 |
|
---|
| 1517 | AssertRC(rc);
|
---|
| 1518 | }
|
---|
| 1519 |
|
---|
[18125] | 1520 | pgmUnlock(pVM);
|
---|
[30889] | 1521 | *ppPdpt = NULL;
|
---|
| 1522 | return rc;
|
---|
[18125] | 1523 | }
|
---|
| 1524 |
|
---|
| 1525 |
|
---|
| 1526 | /**
|
---|
| 1527 | * Performs the lazy mapping / updating of a PAE guest PD.
|
---|
[18131] | 1528 | *
|
---|
[18125] | 1529 | * @returns Pointer to the mapping.
|
---|
[30889] | 1530 | * @returns VBox status code.
|
---|
| 1531 | * @param pVCpu The current CPU.
|
---|
[18131] | 1532 | * @param iPdpt Which PD entry to map (0..3).
|
---|
[30889] | 1533 | * @param ppPd Where to return the pointer to the mapping. This is
|
---|
| 1534 | * always set.
|
---|
[18125] | 1535 | */
|
---|
[30889] | 1536 | int pgmGstLazyMapPaePD(PVMCPU pVCpu, uint32_t iPdpt, PX86PDPAE *ppPd)
|
---|
[18125] | 1537 | {
|
---|
[30889] | 1538 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[18125] | 1539 | pgmLock(pVM);
|
---|
| 1540 |
|
---|
[30889] | 1541 | PX86PDPT pGuestPDPT = pVCpu->pgm.s.CTX_SUFF(pGstPaePdpt);
|
---|
[18125] | 1542 | Assert(pGuestPDPT);
|
---|
| 1543 | Assert(pGuestPDPT->a[iPdpt].n.u1Present);
|
---|
[32009] | 1544 | RTGCPHYS GCPhys = pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK;
|
---|
[30889] | 1545 | bool const fChanged = pVCpu->pgm.s.aGCPhysGstPaePDs[iPdpt] != GCPhys;
|
---|
[18125] | 1546 |
|
---|
[30889] | 1547 | PPGMPAGE pPage;
|
---|
[36891] | 1548 | int rc = pgmPhysGetPageEx(pVM, GCPhys, &pPage);
|
---|
[30889] | 1549 | if (RT_SUCCESS(rc))
|
---|
[18125] | 1550 | {
|
---|
| 1551 | RTRCPTR RCPtr = NIL_RTRCPTR;
|
---|
| 1552 | RTHCPTR HCPtr = NIL_RTHCPTR;
|
---|
| 1553 | #if !defined(IN_RC) && !defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
|
---|
[38953] | 1554 | rc = pgmPhysGCPhys2CCPtrInternalDepr(pVM, pPage, GCPhys, &HCPtr);
|
---|
[18125] | 1555 | AssertRC(rc);
|
---|
| 1556 | #endif
|
---|
| 1557 | if (RT_SUCCESS(rc) && fChanged)
|
---|
| 1558 | {
|
---|
[18927] | 1559 | RCPtr = (RTRCPTR)(RTRCUINTPTR)(pVM->pgm.s.GCPtrCR3Mapping + (1 + iPdpt) * PAGE_SIZE);
|
---|
[18125] | 1560 | rc = PGMMap(pVM, (RTRCUINTPTR)RCPtr, PGM_PAGE_GET_HCPHYS(pPage), PAGE_SIZE, 0);
|
---|
| 1561 | }
|
---|
| 1562 | if (RT_SUCCESS(rc))
|
---|
| 1563 | {
|
---|
[30889] | 1564 | pVCpu->pgm.s.apGstPaePDsR3[iPdpt] = (R3PTRTYPE(PX86PDPAE))HCPtr;
|
---|
[18125] | 1565 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
[30889] | 1566 | pVCpu->pgm.s.apGstPaePDsR0[iPdpt] = (R0PTRTYPE(PX86PDPAE))HCPtr;
|
---|
[18131] | 1567 | # endif
|
---|
[18125] | 1568 | if (fChanged)
|
---|
[18131] | 1569 | {
|
---|
[30889] | 1570 | pVCpu->pgm.s.aGCPhysGstPaePDs[iPdpt] = GCPhys;
|
---|
| 1571 | pVCpu->pgm.s.apGstPaePDsRC[iPdpt] = (RCPTRTYPE(PX86PDPAE))RCPtr;
|
---|
[18125] | 1572 | }
|
---|
| 1573 |
|
---|
[30889] | 1574 | *ppPd = pVCpu->pgm.s.CTX_SUFF(apGstPaePDs)[iPdpt];
|
---|
[18125] | 1575 | pgmUnlock(pVM);
|
---|
[30889] | 1576 | return VINF_SUCCESS;
|
---|
[18125] | 1577 | }
|
---|
| 1578 | }
|
---|
| 1579 |
|
---|
| 1580 | /* Invalid page or some failure, invalidate the entry. */
|
---|
[30889] | 1581 | pVCpu->pgm.s.aGCPhysGstPaePDs[iPdpt] = NIL_RTGCPHYS;
|
---|
| 1582 | pVCpu->pgm.s.apGstPaePDsR3[iPdpt] = 0;
|
---|
[18125] | 1583 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
[30889] | 1584 | pVCpu->pgm.s.apGstPaePDsR0[iPdpt] = 0;
|
---|
[18131] | 1585 | # endif
|
---|
[30889] | 1586 | pVCpu->pgm.s.apGstPaePDsRC[iPdpt] = 0;
|
---|
[18125] | 1587 |
|
---|
| 1588 | pgmUnlock(pVM);
|
---|
[30889] | 1589 | return rc;
|
---|
[18125] | 1590 | }
|
---|
[30889] | 1591 |
|
---|
[18131] | 1592 | #endif /* !VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0 */
|
---|
[30889] | 1593 | #if !defined(IN_RC) && !defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
|
---|
[18125] | 1594 | /**
|
---|
[18131] | 1595 | * Performs the lazy mapping of the 32-bit guest PD.
|
---|
| 1596 | *
|
---|
[30889] | 1597 | * @returns VBox status code.
|
---|
| 1598 | * @param pVCpu The current CPU.
|
---|
| 1599 | * @param ppPml4 Where to return the pointer to the mapping. This will
|
---|
| 1600 | * always be set.
|
---|
[18125] | 1601 | */
|
---|
[30889] | 1602 | int pgmGstLazyMapPml4(PVMCPU pVCpu, PX86PML4 *ppPml4)
|
---|
[18125] | 1603 | {
|
---|
[30889] | 1604 | Assert(!pVCpu->pgm.s.CTX_SUFF(pGstAmd64Pml4));
|
---|
| 1605 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
[18125] | 1606 | pgmLock(pVM);
|
---|
| 1607 |
|
---|
[30889] | 1608 | RTGCPHYS GCPhysCR3 = pVCpu->pgm.s.GCPhysCR3 & X86_CR3_AMD64_PAGE_MASK;
|
---|
| 1609 | PPGMPAGE pPage;
|
---|
[36891] | 1610 | int rc = pgmPhysGetPageEx(pVM, GCPhysCR3, &pPage);
|
---|
[30889] | 1611 | if (RT_SUCCESS(rc))
|
---|
| 1612 | {
|
---|
| 1613 | RTHCPTR HCPtrGuestCR3;
|
---|
[38953] | 1614 | rc = pgmPhysGCPhys2CCPtrInternalDepr(pVM, pPage, GCPhysCR3, (void **)&HCPtrGuestCR3);
|
---|
[30889] | 1615 | if (RT_SUCCESS(rc))
|
---|
| 1616 | {
|
---|
| 1617 | pVCpu->pgm.s.pGstAmd64Pml4R3 = (R3PTRTYPE(PX86PML4))HCPtrGuestCR3;
|
---|
| 1618 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
| 1619 | pVCpu->pgm.s.pGstAmd64Pml4R0 = (R0PTRTYPE(PX86PML4))HCPtrGuestCR3;
|
---|
| 1620 | # endif
|
---|
| 1621 | *ppPml4 = (PX86PML4)HCPtrGuestCR3;
|
---|
[18125] | 1622 |
|
---|
[30889] | 1623 | pgmUnlock(pVM);
|
---|
| 1624 | return VINF_SUCCESS;
|
---|
| 1625 | }
|
---|
| 1626 | }
|
---|
[18125] | 1627 |
|
---|
| 1628 | pgmUnlock(pVM);
|
---|
[30889] | 1629 | *ppPml4 = NULL;
|
---|
| 1630 | return rc;
|
---|
[18125] | 1631 | }
|
---|
[30824] | 1632 | #endif
|
---|
[18125] | 1633 |
|
---|
[38707] | 1634 |
|
---|
[18125] | 1635 | /**
|
---|
[38707] | 1636 | * Gets the PAE PDPEs values cached by the CPU.
|
---|
[13198] | 1637 | *
|
---|
[38707] | 1638 | * @returns VBox status code.
|
---|
| 1639 | * @param pVCpu The virtual CPU.
|
---|
| 1640 | * @param paPdpes Where to return the four PDPEs. The array
|
---|
| 1641 | * pointed to must have 4 entries.
|
---|
[13198] | 1642 | */
|
---|
[38707] | 1643 | VMM_INT_DECL(int) PGMGstGetPaePdpes(PVMCPU pVCpu, PX86PDPE paPdpes)
|
---|
[13198] | 1644 | {
|
---|
[38707] | 1645 | Assert(pVCpu->pgm.s.enmShadowMode == PGMMODE_EPT);
|
---|
| 1646 |
|
---|
| 1647 | paPdpes[0] = pVCpu->pgm.s.aGstPaePdpeRegs[0];
|
---|
| 1648 | paPdpes[1] = pVCpu->pgm.s.aGstPaePdpeRegs[1];
|
---|
| 1649 | paPdpes[2] = pVCpu->pgm.s.aGstPaePdpeRegs[2];
|
---|
| 1650 | paPdpes[3] = pVCpu->pgm.s.aGstPaePdpeRegs[3];
|
---|
| 1651 | return VINF_SUCCESS;
|
---|
[13198] | 1652 | }
|
---|
[1] | 1653 |
|
---|
[13198] | 1654 |
|
---|
[1] | 1655 | /**
|
---|
[38707] | 1656 | * Sets the PAE PDPEs values cached by the CPU.
|
---|
| 1657 | *
|
---|
| 1658 | * @remarks This must be called *AFTER* PGMUpdateCR3.
|
---|
| 1659 | *
|
---|
| 1660 | * @returns VBox status code.
|
---|
| 1661 | * @param pVCpu The virtual CPU.
|
---|
| 1662 | * @param paPdpes The four PDPE values. The array pointed to
|
---|
| 1663 | * must have exactly 4 entries.
|
---|
| 1664 | */
|
---|
| 1665 | VMM_INT_DECL(int) PGMGstUpdatePaePdpes(PVMCPU pVCpu, PCX86PDPE paPdpes)
|
---|
| 1666 | {
|
---|
| 1667 | Assert(pVCpu->pgm.s.enmShadowMode == PGMMODE_EPT);
|
---|
| 1668 |
|
---|
| 1669 | for (unsigned i = 0; i < RT_ELEMENTS(pVCpu->pgm.s.aGstPaePdpeRegs); i++)
|
---|
| 1670 | {
|
---|
| 1671 | if (pVCpu->pgm.s.aGstPaePdpeRegs[i].u != paPdpes[i].u)
|
---|
| 1672 | {
|
---|
| 1673 | pVCpu->pgm.s.aGstPaePdpeRegs[i] = paPdpes[i];
|
---|
| 1674 |
|
---|
| 1675 | /* Force lazy remapping if it changed in any way. */
|
---|
| 1676 | pVCpu->pgm.s.apGstPaePDsR3[i] = 0;
|
---|
| 1677 | # ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
|
---|
| 1678 | pVCpu->pgm.s.apGstPaePDsR0[i] = 0;
|
---|
| 1679 | # endif
|
---|
| 1680 | pVCpu->pgm.s.apGstPaePDsRC[i] = 0;
|
---|
| 1681 | pVCpu->pgm.s.aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
|
---|
| 1682 | }
|
---|
| 1683 | }
|
---|
| 1684 | return VINF_SUCCESS;
|
---|
| 1685 | }
|
---|
| 1686 |
|
---|
| 1687 |
|
---|
| 1688 | /**
|
---|
[1] | 1689 | * Gets the current CR3 register value for the shadow memory context.
|
---|
| 1690 | * @returns CR3 value.
|
---|
[41802] | 1691 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1692 | */
|
---|
[18927] | 1693 | VMMDECL(RTHCPHYS) PGMGetHyperCR3(PVMCPU pVCpu)
|
---|
[1] | 1694 | {
|
---|
[18927] | 1695 | PPGMPOOLPAGE pPoolPage = pVCpu->pgm.s.CTX_SUFF(pShwPageCR3);
|
---|
[17658] | 1696 | AssertPtrReturn(pPoolPage, 0);
|
---|
| 1697 | return pPoolPage->Core.Key;
|
---|
[1] | 1698 | }
|
---|
| 1699 |
|
---|
[13232] | 1700 |
|
---|
[9026] | 1701 | /**
|
---|
| 1702 | * Gets the current CR3 register value for the nested memory context.
|
---|
| 1703 | * @returns CR3 value.
|
---|
[41802] | 1704 | * @param pVCpu Pointer to the VMCPU.
|
---|
[9026] | 1705 | */
|
---|
[18927] | 1706 | VMMDECL(RTHCPHYS) PGMGetNestedCR3(PVMCPU pVCpu, PGMMODE enmShadowMode)
|
---|
[9026] | 1707 | {
|
---|
[39078] | 1708 | NOREF(enmShadowMode);
|
---|
[18927] | 1709 | Assert(pVCpu->pgm.s.CTX_SUFF(pShwPageCR3));
|
---|
| 1710 | return pVCpu->pgm.s.CTX_SUFF(pShwPageCR3)->Core.Key;
|
---|
[9026] | 1711 | }
|
---|
| 1712 |
|
---|
[13232] | 1713 |
|
---|
[13113] | 1714 | /**
|
---|
[1] | 1715 | * Gets the current CR3 register value for the HC intermediate memory context.
|
---|
| 1716 | * @returns CR3 value.
|
---|
[41783] | 1717 | * @param pVM Pointer to the VM.
|
---|
[1] | 1718 | */
|
---|
[12989] | 1719 | VMMDECL(RTHCPHYS) PGMGetInterHCCR3(PVM pVM)
|
---|
[1] | 1720 | {
|
---|
| 1721 | switch (pVM->pgm.s.enmHostMode)
|
---|
| 1722 | {
|
---|
| 1723 | case SUPPAGINGMODE_32_BIT:
|
---|
| 1724 | case SUPPAGINGMODE_32_BIT_GLOBAL:
|
---|
| 1725 | return pVM->pgm.s.HCPhysInterPD;
|
---|
| 1726 |
|
---|
| 1727 | case SUPPAGINGMODE_PAE:
|
---|
| 1728 | case SUPPAGINGMODE_PAE_GLOBAL:
|
---|
| 1729 | case SUPPAGINGMODE_PAE_NX:
|
---|
| 1730 | case SUPPAGINGMODE_PAE_GLOBAL_NX:
|
---|
[7715] | 1731 | return pVM->pgm.s.HCPhysInterPaePDPT;
|
---|
[1] | 1732 |
|
---|
| 1733 | case SUPPAGINGMODE_AMD64:
|
---|
| 1734 | case SUPPAGINGMODE_AMD64_GLOBAL:
|
---|
| 1735 | case SUPPAGINGMODE_AMD64_NX:
|
---|
| 1736 | case SUPPAGINGMODE_AMD64_GLOBAL_NX:
|
---|
[7715] | 1737 | return pVM->pgm.s.HCPhysInterPaePDPT;
|
---|
[1] | 1738 |
|
---|
| 1739 | default:
|
---|
| 1740 | AssertMsgFailed(("enmHostMode=%d\n", pVM->pgm.s.enmHostMode));
|
---|
[39038] | 1741 | return NIL_RTHCPHYS;
|
---|
[1] | 1742 | }
|
---|
| 1743 | }
|
---|
| 1744 |
|
---|
| 1745 |
|
---|
| 1746 | /**
|
---|
[13232] | 1747 | * Gets the current CR3 register value for the RC intermediate memory context.
|
---|
[1] | 1748 | * @returns CR3 value.
|
---|
[41783] | 1749 | * @param pVM Pointer to the VM.
|
---|
[41802] | 1750 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1751 | */
|
---|
[18927] | 1752 | VMMDECL(RTHCPHYS) PGMGetInterRCCR3(PVM pVM, PVMCPU pVCpu)
|
---|
[1] | 1753 | {
|
---|
[18927] | 1754 | switch (pVCpu->pgm.s.enmShadowMode)
|
---|
[1] | 1755 | {
|
---|
| 1756 | case PGMMODE_32_BIT:
|
---|
| 1757 | return pVM->pgm.s.HCPhysInterPD;
|
---|
| 1758 |
|
---|
| 1759 | case PGMMODE_PAE:
|
---|
| 1760 | case PGMMODE_PAE_NX:
|
---|
[7715] | 1761 | return pVM->pgm.s.HCPhysInterPaePDPT;
|
---|
[1] | 1762 |
|
---|
| 1763 | case PGMMODE_AMD64:
|
---|
| 1764 | case PGMMODE_AMD64_NX:
|
---|
| 1765 | return pVM->pgm.s.HCPhysInterPaePML4;
|
---|
| 1766 |
|
---|
[10822] | 1767 | case PGMMODE_EPT:
|
---|
[9032] | 1768 | case PGMMODE_NESTED:
|
---|
| 1769 | return 0; /* not relevant */
|
---|
| 1770 |
|
---|
[1] | 1771 | default:
|
---|
[18927] | 1772 | AssertMsgFailed(("enmShadowMode=%d\n", pVCpu->pgm.s.enmShadowMode));
|
---|
[39038] | 1773 | return NIL_RTHCPHYS;
|
---|
[1] | 1774 | }
|
---|
| 1775 | }
|
---|
| 1776 |
|
---|
| 1777 |
|
---|
| 1778 | /**
|
---|
| 1779 | * Gets the CR3 register value for the 32-Bit intermediate memory context.
|
---|
| 1780 | * @returns CR3 value.
|
---|
[41783] | 1781 | * @param pVM Pointer to the VM.
|
---|
[1] | 1782 | */
|
---|
[12989] | 1783 | VMMDECL(RTHCPHYS) PGMGetInter32BitCR3(PVM pVM)
|
---|
[1] | 1784 | {
|
---|
| 1785 | return pVM->pgm.s.HCPhysInterPD;
|
---|
| 1786 | }
|
---|
| 1787 |
|
---|
| 1788 |
|
---|
| 1789 | /**
|
---|
| 1790 | * Gets the CR3 register value for the PAE intermediate memory context.
|
---|
| 1791 | * @returns CR3 value.
|
---|
[41783] | 1792 | * @param pVM Pointer to the VM.
|
---|
[1] | 1793 | */
|
---|
[12989] | 1794 | VMMDECL(RTHCPHYS) PGMGetInterPaeCR3(PVM pVM)
|
---|
[1] | 1795 | {
|
---|
[7715] | 1796 | return pVM->pgm.s.HCPhysInterPaePDPT;
|
---|
[1] | 1797 | }
|
---|
| 1798 |
|
---|
| 1799 |
|
---|
| 1800 | /**
|
---|
| 1801 | * Gets the CR3 register value for the AMD64 intermediate memory context.
|
---|
| 1802 | * @returns CR3 value.
|
---|
[41783] | 1803 | * @param pVM Pointer to the VM.
|
---|
[1] | 1804 | */
|
---|
[12989] | 1805 | VMMDECL(RTHCPHYS) PGMGetInterAmd64CR3(PVM pVM)
|
---|
[1] | 1806 | {
|
---|
| 1807 | return pVM->pgm.s.HCPhysInterPaePML4;
|
---|
| 1808 | }
|
---|
| 1809 |
|
---|
| 1810 |
|
---|
| 1811 | /**
|
---|
| 1812 | * Performs and schedules necessary updates following a CR3 load or reload.
|
---|
| 1813 | *
|
---|
[7715] | 1814 | * This will normally involve mapping the guest PD or nPDPT
|
---|
[1] | 1815 | *
|
---|
| 1816 | * @returns VBox status code.
|
---|
| 1817 | * @retval VINF_PGM_SYNC_CR3 if monitoring requires a CR3 sync. This can
|
---|
| 1818 | * safely be ignored and overridden since the FF will be set too then.
|
---|
[41802] | 1819 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1820 | * @param cr3 The new cr3.
|
---|
| 1821 | * @param fGlobal Indicates whether this is a global flush or not.
|
---|
| 1822 | */
|
---|
[18992] | 1823 | VMMDECL(int) PGMFlushTLB(PVMCPU pVCpu, uint64_t cr3, bool fGlobal)
|
---|
[1] | 1824 | {
|
---|
[37354] | 1825 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLB), a);
|
---|
[18992] | 1826 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 1827 |
|
---|
[37354] | 1828 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[7883] | 1829 |
|
---|
[1] | 1830 | /*
|
---|
[3956] | 1831 | * Always flag the necessary updates; necessary for hardware acceleration
|
---|
| 1832 | */
|
---|
[15410] | 1833 | /** @todo optimize this, it shouldn't always be necessary. */
|
---|
[19141] | 1834 | VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
|
---|
[3956] | 1835 | if (fGlobal)
|
---|
[19141] | 1836 | VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
|
---|
[18927] | 1837 | LogFlow(("PGMFlushTLB: cr3=%RX64 OldCr3=%RX64 fGlobal=%d\n", cr3, pVCpu->pgm.s.GCPhysCR3, fGlobal));
|
---|
[1] | 1838 |
|
---|
| 1839 | /*
|
---|
| 1840 | * Remap the CR3 content and adjust the monitoring if CR3 was actually changed.
|
---|
| 1841 | */
|
---|
| 1842 | int rc = VINF_SUCCESS;
|
---|
| 1843 | RTGCPHYS GCPhysCR3;
|
---|
[18927] | 1844 | switch (pVCpu->pgm.s.enmGuestMode)
|
---|
[17259] | 1845 | {
|
---|
[30889] | 1846 | case PGMMODE_PAE:
|
---|
| 1847 | case PGMMODE_PAE_NX:
|
---|
| 1848 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAE_PAGE_MASK);
|
---|
| 1849 | break;
|
---|
| 1850 | case PGMMODE_AMD64:
|
---|
| 1851 | case PGMMODE_AMD64_NX:
|
---|
| 1852 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_AMD64_PAGE_MASK);
|
---|
| 1853 | break;
|
---|
| 1854 | default:
|
---|
| 1855 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAGE_MASK);
|
---|
| 1856 | break;
|
---|
[17259] | 1857 | }
|
---|
[41391] | 1858 | PGM_A20_APPLY_TO_VAR(pVCpu, GCPhysCR3);
|
---|
[17259] | 1859 |
|
---|
[18927] | 1860 | if (pVCpu->pgm.s.GCPhysCR3 != GCPhysCR3)
|
---|
[1] | 1861 | {
|
---|
[18927] | 1862 | RTGCPHYS GCPhysOldCR3 = pVCpu->pgm.s.GCPhysCR3;
|
---|
| 1863 | pVCpu->pgm.s.GCPhysCR3 = GCPhysCR3;
|
---|
[18992] | 1864 | rc = PGM_BTH_PFN(MapCR3, pVCpu)(pVCpu, GCPhysCR3);
|
---|
[15410] | 1865 | if (RT_LIKELY(rc == VINF_SUCCESS))
|
---|
[1] | 1866 | {
|
---|
[36891] | 1867 | if (pgmMapAreMappingsFloating(pVM))
|
---|
[18927] | 1868 | pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_MONITOR_CR3;
|
---|
[1] | 1869 | }
|
---|
[15410] | 1870 | else
|
---|
| 1871 | {
|
---|
| 1872 | AssertMsg(rc == VINF_PGM_SYNC_CR3, ("%Rrc\n", rc));
|
---|
[19141] | 1873 | Assert(VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL | VMCPU_FF_PGM_SYNC_CR3));
|
---|
[18927] | 1874 | pVCpu->pgm.s.GCPhysCR3 = GCPhysOldCR3;
|
---|
| 1875 | pVCpu->pgm.s.fSyncFlags |= PGM_SYNC_MAP_CR3;
|
---|
[36891] | 1876 | if (pgmMapAreMappingsFloating(pVM))
|
---|
[18927] | 1877 | pVCpu->pgm.s.fSyncFlags |= PGM_SYNC_MONITOR_CR3;
|
---|
[15410] | 1878 | }
|
---|
| 1879 |
|
---|
[1] | 1880 | if (fGlobal)
|
---|
[31123] | 1881 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLBNewCR3Global));
|
---|
[1] | 1882 | else
|
---|
[31123] | 1883 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLBNewCR3));
|
---|
[1] | 1884 | }
|
---|
| 1885 | else
|
---|
| 1886 | {
|
---|
[22544] | 1887 | # ifdef PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
|
---|
[22545] | 1888 | PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
|
---|
| 1889 | if (pPool->cDirtyPages)
|
---|
| 1890 | {
|
---|
| 1891 | pgmLock(pVM);
|
---|
| 1892 | pgmPoolResetDirtyPages(pVM);
|
---|
| 1893 | pgmUnlock(pVM);
|
---|
| 1894 | }
|
---|
[22473] | 1895 | # endif
|
---|
[1] | 1896 | /*
|
---|
| 1897 | * Check if we have a pending update of the CR3 monitoring.
|
---|
| 1898 | */
|
---|
[18927] | 1899 | if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MONITOR_CR3)
|
---|
[1] | 1900 | {
|
---|
[18927] | 1901 | pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_MONITOR_CR3;
|
---|
[25935] | 1902 | Assert(!pVM->pgm.s.fMappingsFixed); Assert(!pVM->pgm.s.fMappingsDisabled);
|
---|
[1] | 1903 | }
|
---|
| 1904 | if (fGlobal)
|
---|
[31123] | 1905 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLBSameCR3Global));
|
---|
[1] | 1906 | else
|
---|
[31123] | 1907 | STAM_COUNTER_INC(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLBSameCR3));
|
---|
[1] | 1908 | }
|
---|
| 1909 |
|
---|
[31123] | 1910 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,FlushTLB), a);
|
---|
[1] | 1911 | return rc;
|
---|
| 1912 | }
|
---|
| 1913 |
|
---|
[13232] | 1914 |
|
---|
[9064] | 1915 | /**
|
---|
[13232] | 1916 | * Performs and schedules necessary updates following a CR3 load or reload when
|
---|
| 1917 | * using nested or extended paging.
|
---|
[9064] | 1918 | *
|
---|
[33540] | 1919 | * This API is an alternative to PDMFlushTLB that avoids actually flushing the
|
---|
[13232] | 1920 | * TLB and triggering a SyncCR3.
|
---|
| 1921 | *
|
---|
[9064] | 1922 | * This will normally involve mapping the guest PD or nPDPT
|
---|
| 1923 | *
|
---|
| 1924 | * @returns VBox status code.
|
---|
[15410] | 1925 | * @retval VINF_SUCCESS.
|
---|
| 1926 | * @retval (If applied when not in nested mode: VINF_PGM_SYNC_CR3 if monitoring
|
---|
| 1927 | * requires a CR3 sync. This can safely be ignored and overridden since
|
---|
| 1928 | * the FF will be set too then.)
|
---|
[41802] | 1929 | * @param pVCpu Pointer to the VMCPU.
|
---|
[9064] | 1930 | * @param cr3 The new cr3.
|
---|
| 1931 | */
|
---|
[18992] | 1932 | VMMDECL(int) PGMUpdateCR3(PVMCPU pVCpu, uint64_t cr3)
|
---|
[9064] | 1933 | {
|
---|
[37354] | 1934 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
[18927] | 1935 | LogFlow(("PGMUpdateCR3: cr3=%RX64 OldCr3=%RX64\n", cr3, pVCpu->pgm.s.GCPhysCR3));
|
---|
[1] | 1936 |
|
---|
[9064] | 1937 | /* We assume we're only called in nested paging mode. */
|
---|
[39034] | 1938 | Assert(pVCpu->CTX_SUFF(pVM)->pgm.s.fNestedPaging || pVCpu->pgm.s.enmShadowMode == PGMMODE_EPT);
|
---|
| 1939 | Assert(pVCpu->CTX_SUFF(pVM)->pgm.s.fMappingsDisabled);
|
---|
[18927] | 1940 | Assert(!(pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MONITOR_CR3));
|
---|
[9064] | 1941 |
|
---|
| 1942 | /*
|
---|
| 1943 | * Remap the CR3 content and adjust the monitoring if CR3 was actually changed.
|
---|
| 1944 | */
|
---|
| 1945 | int rc = VINF_SUCCESS;
|
---|
| 1946 | RTGCPHYS GCPhysCR3;
|
---|
[18927] | 1947 | switch (pVCpu->pgm.s.enmGuestMode)
|
---|
[17259] | 1948 | {
|
---|
[37354] | 1949 | case PGMMODE_PAE:
|
---|
| 1950 | case PGMMODE_PAE_NX:
|
---|
| 1951 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAE_PAGE_MASK);
|
---|
| 1952 | break;
|
---|
| 1953 | case PGMMODE_AMD64:
|
---|
| 1954 | case PGMMODE_AMD64_NX:
|
---|
| 1955 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_AMD64_PAGE_MASK);
|
---|
| 1956 | break;
|
---|
| 1957 | default:
|
---|
| 1958 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAGE_MASK);
|
---|
| 1959 | break;
|
---|
[17259] | 1960 | }
|
---|
[41391] | 1961 | PGM_A20_APPLY_TO_VAR(pVCpu, GCPhysCR3);
|
---|
| 1962 |
|
---|
[18927] | 1963 | if (pVCpu->pgm.s.GCPhysCR3 != GCPhysCR3)
|
---|
[9064] | 1964 | {
|
---|
[18927] | 1965 | pVCpu->pgm.s.GCPhysCR3 = GCPhysCR3;
|
---|
[18992] | 1966 | rc = PGM_BTH_PFN(MapCR3, pVCpu)(pVCpu, GCPhysCR3);
|
---|
[17505] | 1967 | AssertRCSuccess(rc); /* Assumes VINF_PGM_SYNC_CR3 doesn't apply to nested paging. */ /** @todo this isn't true for the mac, but we need hw to test/fix this. */
|
---|
[9064] | 1968 | }
|
---|
| 1969 | return rc;
|
---|
| 1970 | }
|
---|
| 1971 |
|
---|
[13232] | 1972 |
|
---|
[1] | 1973 | /**
|
---|
| 1974 | * Synchronize the paging structures.
|
---|
| 1975 | *
|
---|
| 1976 | * This function is called in response to the VM_FF_PGM_SYNC_CR3 and
|
---|
| 1977 | * VM_FF_PGM_SYNC_CR3_NONGLOBAL. Those two force action flags are set
|
---|
| 1978 | * in several places, most importantly whenever the CR3 is loaded.
|
---|
| 1979 | *
|
---|
| 1980 | * @returns VBox status code.
|
---|
[41802] | 1981 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 1982 | * @param cr0 Guest context CR0 register
|
---|
| 1983 | * @param cr3 Guest context CR3 register
|
---|
| 1984 | * @param cr4 Guest context CR4 register
|
---|
| 1985 | * @param fGlobal Including global page directories or not
|
---|
| 1986 | */
|
---|
[18992] | 1987 | VMMDECL(int) PGMSyncCR3(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal)
|
---|
[1] | 1988 | {
|
---|
[15410] | 1989 | int rc;
|
---|
| 1990 |
|
---|
[37354] | 1991 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 1992 |
|
---|
[1] | 1993 | /*
|
---|
[19516] | 1994 | * The pool may have pending stuff and even require a return to ring-3 to
|
---|
| 1995 | * clear the whole thing.
|
---|
| 1996 | */
|
---|
[20151] | 1997 | rc = pgmPoolSyncCR3(pVCpu);
|
---|
[19516] | 1998 | if (rc != VINF_SUCCESS)
|
---|
| 1999 | return rc;
|
---|
| 2000 |
|
---|
| 2001 | /*
|
---|
[1] | 2002 | * We might be called when we shouldn't.
|
---|
| 2003 | *
|
---|
[41462] | 2004 | * The mode switching will ensure that the PD is resynced after every mode
|
---|
| 2005 | * switch. So, if we find ourselves here when in protected or real mode
|
---|
| 2006 | * we can safely clear the FF and return immediately.
|
---|
[1] | 2007 | */
|
---|
[18927] | 2008 | if (pVCpu->pgm.s.enmGuestMode <= PGMMODE_PROTECTED)
|
---|
[1] | 2009 | {
|
---|
| 2010 | Assert((cr0 & (X86_CR0_PG | X86_CR0_PE)) != (X86_CR0_PG | X86_CR0_PE));
|
---|
[27816] | 2011 | Assert(!(pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL));
|
---|
[19141] | 2012 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
|
---|
| 2013 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
|
---|
[1] | 2014 | return VINF_SUCCESS;
|
---|
| 2015 | }
|
---|
| 2016 |
|
---|
[15410] | 2017 | /* If global pages are not supported, then all flushes are global. */
|
---|
[1] | 2018 | if (!(cr4 & X86_CR4_PGE))
|
---|
| 2019 | fGlobal = true;
|
---|
[13825] | 2020 | LogFlow(("PGMSyncCR3: cr0=%RX64 cr3=%RX64 cr4=%RX64 fGlobal=%d[%d,%d]\n", cr0, cr3, cr4, fGlobal,
|
---|
[19141] | 2021 | VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3), VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL)));
|
---|
[1] | 2022 |
|
---|
| 2023 | /*
|
---|
[15410] | 2024 | * Check if we need to finish an aborted MapCR3 call (see PGMFlushTLB).
|
---|
| 2025 | * This should be done before SyncCR3.
|
---|
| 2026 | */
|
---|
[18927] | 2027 | if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MAP_CR3)
|
---|
[15410] | 2028 | {
|
---|
[18927] | 2029 | pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_MAP_CR3;
|
---|
[15410] | 2030 |
|
---|
[39034] | 2031 | RTGCPHYS GCPhysCR3Old = pVCpu->pgm.s.GCPhysCR3; NOREF(GCPhysCR3Old);
|
---|
[15410] | 2032 | RTGCPHYS GCPhysCR3;
|
---|
[18927] | 2033 | switch (pVCpu->pgm.s.enmGuestMode)
|
---|
[17259] | 2034 | {
|
---|
[37354] | 2035 | case PGMMODE_PAE:
|
---|
| 2036 | case PGMMODE_PAE_NX:
|
---|
| 2037 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAE_PAGE_MASK);
|
---|
| 2038 | break;
|
---|
| 2039 | case PGMMODE_AMD64:
|
---|
| 2040 | case PGMMODE_AMD64_NX:
|
---|
| 2041 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_AMD64_PAGE_MASK);
|
---|
| 2042 | break;
|
---|
| 2043 | default:
|
---|
| 2044 | GCPhysCR3 = (RTGCPHYS)(cr3 & X86_CR3_PAGE_MASK);
|
---|
| 2045 | break;
|
---|
[17259] | 2046 | }
|
---|
[41391] | 2047 | PGM_A20_APPLY_TO_VAR(pVCpu, GCPhysCR3);
|
---|
[16317] | 2048 |
|
---|
[18927] | 2049 | if (pVCpu->pgm.s.GCPhysCR3 != GCPhysCR3)
|
---|
[16317] | 2050 | {
|
---|
[18927] | 2051 | pVCpu->pgm.s.GCPhysCR3 = GCPhysCR3;
|
---|
[18992] | 2052 | rc = PGM_BTH_PFN(MapCR3, pVCpu)(pVCpu, GCPhysCR3);
|
---|
[16317] | 2053 | }
|
---|
[37354] | 2054 |
|
---|
[27369] | 2055 | /* Make sure we check for pending pgm pool syncs as we clear VMCPU_FF_PGM_SYNC_CR3 later on! */
|
---|
[27390] | 2056 | if ( rc == VINF_PGM_SYNC_CR3
|
---|
| 2057 | || (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL))
|
---|
[27369] | 2058 | {
|
---|
[27370] | 2059 | Log(("PGMSyncCR3: pending pgm pool sync after MapCR3!\n"));
|
---|
[15410] | 2060 | #ifdef IN_RING3
|
---|
[20151] | 2061 | rc = pgmPoolSyncCR3(pVCpu);
|
---|
[15410] | 2062 | #else
|
---|
[27371] | 2063 | if (rc == VINF_PGM_SYNC_CR3)
|
---|
| 2064 | pVCpu->pgm.s.GCPhysCR3 = GCPhysCR3Old;
|
---|
[27369] | 2065 | return VINF_PGM_SYNC_CR3;
|
---|
| 2066 | #endif
|
---|
[15410] | 2067 | }
|
---|
[27813] | 2068 | AssertRCReturn(rc, rc);
|
---|
[39402] | 2069 | AssertRCSuccessReturn(rc, VERR_IPE_UNEXPECTED_INFO_STATUS);
|
---|
[15410] | 2070 | }
|
---|
| 2071 |
|
---|
| 2072 | /*
|
---|
[1] | 2073 | * Let the 'Bth' function do the work and we'll just keep track of the flags.
|
---|
| 2074 | */
|
---|
[31123] | 2075 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,SyncCR3), a);
|
---|
[18992] | 2076 | rc = PGM_BTH_PFN(SyncCR3, pVCpu)(pVCpu, cr0, cr3, cr4, fGlobal);
|
---|
[31123] | 2077 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,SyncCR3), a);
|
---|
[13821] | 2078 | AssertMsg(rc == VINF_SUCCESS || rc == VINF_PGM_SYNC_CR3 || RT_FAILURE(rc), ("rc=%Rrc\n", rc));
|
---|
[1] | 2079 | if (rc == VINF_SUCCESS)
|
---|
| 2080 | {
|
---|
[27816] | 2081 | if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL)
|
---|
| 2082 | {
|
---|
| 2083 | /* Go back to ring 3 if a pgm pool sync is again pending. */
|
---|
| 2084 | return VINF_PGM_SYNC_CR3;
|
---|
| 2085 | }
|
---|
| 2086 |
|
---|
[18927] | 2087 | if (!(pVCpu->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS))
|
---|
[1] | 2088 | {
|
---|
[27816] | 2089 | Assert(!(pVCpu->pgm.s.fSyncFlags & PGM_SYNC_CLEAR_PGM_POOL));
|
---|
[19141] | 2090 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
|
---|
| 2091 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
|
---|
[1] | 2092 | }
|
---|
| 2093 |
|
---|
| 2094 | /*
|
---|
| 2095 | * Check if we have a pending update of the CR3 monitoring.
|
---|
| 2096 | */
|
---|
[18927] | 2097 | if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_MONITOR_CR3)
|
---|
[1] | 2098 | {
|
---|
[18927] | 2099 | pVCpu->pgm.s.fSyncFlags &= ~PGM_SYNC_MONITOR_CR3;
|
---|
[39034] | 2100 | Assert(!pVCpu->CTX_SUFF(pVM)->pgm.s.fMappingsFixed);
|
---|
| 2101 | Assert(!pVCpu->CTX_SUFF(pVM)->pgm.s.fMappingsDisabled);
|
---|
[1] | 2102 | }
|
---|
| 2103 | }
|
---|
| 2104 |
|
---|
| 2105 | /*
|
---|
| 2106 | * Now flush the CR3 (guest context).
|
---|
| 2107 | */
|
---|
| 2108 | if (rc == VINF_SUCCESS)
|
---|
[19833] | 2109 | PGM_INVL_VCPU_TLBS(pVCpu);
|
---|
[1] | 2110 | return rc;
|
---|
| 2111 | }
|
---|
| 2112 |
|
---|
| 2113 |
|
---|
| 2114 | /**
|
---|
[31080] | 2115 | * Called whenever CR0 or CR4 in a way which may affect the paging mode.
|
---|
[1] | 2116 | *
|
---|
[18651] | 2117 | * @returns VBox status code, with the following informational code for
|
---|
| 2118 | * VM scheduling.
|
---|
[1] | 2119 | * @retval VINF_SUCCESS if the was no change, or it was successfully dealt with.
|
---|
[18651] | 2120 | * @retval VINF_PGM_CHANGE_MODE if we're in RC or R0 and the mode changes.
|
---|
| 2121 | * (I.e. not in R3.)
|
---|
| 2122 | * @retval VINF_EM_SUSPEND or VINF_EM_OFF on a fatal runtime error. (R3 only)
|
---|
| 2123 | *
|
---|
[41802] | 2124 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 2125 | * @param cr0 The new cr0.
|
---|
| 2126 | * @param cr4 The new cr4.
|
---|
| 2127 | * @param efer The new extended feature enable register.
|
---|
| 2128 | */
|
---|
[18992] | 2129 | VMMDECL(int) PGMChangeMode(PVMCPU pVCpu, uint64_t cr0, uint64_t cr4, uint64_t efer)
|
---|
[1] | 2130 | {
|
---|
| 2131 | PGMMODE enmGuestMode;
|
---|
| 2132 |
|
---|
[37354] | 2133 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 2134 |
|
---|
[1] | 2135 | /*
|
---|
| 2136 | * Calc the new guest mode.
|
---|
| 2137 | */
|
---|
| 2138 | if (!(cr0 & X86_CR0_PE))
|
---|
| 2139 | enmGuestMode = PGMMODE_REAL;
|
---|
| 2140 | else if (!(cr0 & X86_CR0_PG))
|
---|
| 2141 | enmGuestMode = PGMMODE_PROTECTED;
|
---|
| 2142 | else if (!(cr4 & X86_CR4_PAE))
|
---|
[31080] | 2143 | {
|
---|
| 2144 | bool const fPse = !!(cr4 & X86_CR4_PSE);
|
---|
| 2145 | if (pVCpu->pgm.s.fGst32BitPageSizeExtension != fPse)
|
---|
| 2146 | Log(("PGMChangeMode: CR4.PSE %d -> %d\n", pVCpu->pgm.s.fGst32BitPageSizeExtension, fPse));
|
---|
| 2147 | pVCpu->pgm.s.fGst32BitPageSizeExtension = fPse;
|
---|
[1] | 2148 | enmGuestMode = PGMMODE_32_BIT;
|
---|
[31080] | 2149 | }
|
---|
[1] | 2150 | else if (!(efer & MSR_K6_EFER_LME))
|
---|
| 2151 | {
|
---|
| 2152 | if (!(efer & MSR_K6_EFER_NXE))
|
---|
| 2153 | enmGuestMode = PGMMODE_PAE;
|
---|
| 2154 | else
|
---|
| 2155 | enmGuestMode = PGMMODE_PAE_NX;
|
---|
| 2156 | }
|
---|
| 2157 | else
|
---|
| 2158 | {
|
---|
| 2159 | if (!(efer & MSR_K6_EFER_NXE))
|
---|
| 2160 | enmGuestMode = PGMMODE_AMD64;
|
---|
| 2161 | else
|
---|
| 2162 | enmGuestMode = PGMMODE_AMD64_NX;
|
---|
| 2163 | }
|
---|
| 2164 |
|
---|
| 2165 | /*
|
---|
| 2166 | * Did it change?
|
---|
| 2167 | */
|
---|
[18927] | 2168 | if (pVCpu->pgm.s.enmGuestMode == enmGuestMode)
|
---|
[1] | 2169 | return VINF_SUCCESS;
|
---|
[10299] | 2170 |
|
---|
| 2171 | /* Flush the TLB */
|
---|
[19833] | 2172 | PGM_INVL_VCPU_TLBS(pVCpu);
|
---|
[10299] | 2173 |
|
---|
[1] | 2174 | #ifdef IN_RING3
|
---|
[39034] | 2175 | return PGMR3ChangeMode(pVCpu->CTX_SUFF(pVM), pVCpu, enmGuestMode);
|
---|
[1] | 2176 | #else
|
---|
[13418] | 2177 | LogFlow(("PGMChangeMode: returns VINF_PGM_CHANGE_MODE.\n"));
|
---|
[1] | 2178 | return VINF_PGM_CHANGE_MODE;
|
---|
| 2179 | #endif
|
---|
| 2180 | }
|
---|
| 2181 |
|
---|
| 2182 |
|
---|
| 2183 | /**
|
---|
| 2184 | * Gets the current guest paging mode.
|
---|
| 2185 | *
|
---|
[4207] | 2186 | * If you just need the CPU mode (real/protected/long), use CPUMGetGuestMode().
|
---|
| 2187 | *
|
---|
[1] | 2188 | * @returns The current paging mode.
|
---|
[41802] | 2189 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 2190 | */
|
---|
[18927] | 2191 | VMMDECL(PGMMODE) PGMGetGuestMode(PVMCPU pVCpu)
|
---|
[1] | 2192 | {
|
---|
[18927] | 2193 | return pVCpu->pgm.s.enmGuestMode;
|
---|
[1] | 2194 | }
|
---|
| 2195 |
|
---|
[1310] | 2196 |
|
---|
[1251] | 2197 | /**
|
---|
| 2198 | * Gets the current shadow paging mode.
|
---|
| 2199 | *
|
---|
| 2200 | * @returns The current paging mode.
|
---|
[41802] | 2201 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1251] | 2202 | */
|
---|
[18927] | 2203 | VMMDECL(PGMMODE) PGMGetShadowMode(PVMCPU pVCpu)
|
---|
[1251] | 2204 | {
|
---|
[18927] | 2205 | return pVCpu->pgm.s.enmShadowMode;
|
---|
[1251] | 2206 | }
|
---|
[1] | 2207 |
|
---|
[37354] | 2208 |
|
---|
[8108] | 2209 | /**
|
---|
| 2210 | * Gets the current host paging mode.
|
---|
| 2211 | *
|
---|
| 2212 | * @returns The current paging mode.
|
---|
[41783] | 2213 | * @param pVM Pointer to the VM.
|
---|
[8108] | 2214 | */
|
---|
[12989] | 2215 | VMMDECL(PGMMODE) PGMGetHostMode(PVM pVM)
|
---|
[8108] | 2216 | {
|
---|
| 2217 | switch (pVM->pgm.s.enmHostMode)
|
---|
| 2218 | {
|
---|
| 2219 | case SUPPAGINGMODE_32_BIT:
|
---|
| 2220 | case SUPPAGINGMODE_32_BIT_GLOBAL:
|
---|
| 2221 | return PGMMODE_32_BIT;
|
---|
[1310] | 2222 |
|
---|
[8108] | 2223 | case SUPPAGINGMODE_PAE:
|
---|
| 2224 | case SUPPAGINGMODE_PAE_GLOBAL:
|
---|
| 2225 | return PGMMODE_PAE;
|
---|
| 2226 |
|
---|
| 2227 | case SUPPAGINGMODE_PAE_NX:
|
---|
| 2228 | case SUPPAGINGMODE_PAE_GLOBAL_NX:
|
---|
| 2229 | return PGMMODE_PAE_NX;
|
---|
| 2230 |
|
---|
| 2231 | case SUPPAGINGMODE_AMD64:
|
---|
| 2232 | case SUPPAGINGMODE_AMD64_GLOBAL:
|
---|
| 2233 | return PGMMODE_AMD64;
|
---|
| 2234 |
|
---|
| 2235 | case SUPPAGINGMODE_AMD64_NX:
|
---|
| 2236 | case SUPPAGINGMODE_AMD64_GLOBAL_NX:
|
---|
| 2237 | return PGMMODE_AMD64_NX;
|
---|
| 2238 |
|
---|
| 2239 | default: AssertMsgFailed(("enmHostMode=%d\n", pVM->pgm.s.enmHostMode)); break;
|
---|
| 2240 | }
|
---|
| 2241 |
|
---|
| 2242 | return PGMMODE_INVALID;
|
---|
| 2243 | }
|
---|
| 2244 |
|
---|
| 2245 |
|
---|
[1] | 2246 | /**
|
---|
| 2247 | * Get mode name.
|
---|
| 2248 | *
|
---|
| 2249 | * @returns read-only name string.
|
---|
| 2250 | * @param enmMode The mode which name is desired.
|
---|
| 2251 | */
|
---|
[12989] | 2252 | VMMDECL(const char *) PGMGetModeName(PGMMODE enmMode)
|
---|
[1] | 2253 | {
|
---|
| 2254 | switch (enmMode)
|
---|
| 2255 | {
|
---|
[10824] | 2256 | case PGMMODE_REAL: return "Real";
|
---|
| 2257 | case PGMMODE_PROTECTED: return "Protected";
|
---|
[1] | 2258 | case PGMMODE_32_BIT: return "32-bit";
|
---|
| 2259 | case PGMMODE_PAE: return "PAE";
|
---|
| 2260 | case PGMMODE_PAE_NX: return "PAE+NX";
|
---|
| 2261 | case PGMMODE_AMD64: return "AMD64";
|
---|
| 2262 | case PGMMODE_AMD64_NX: return "AMD64+NX";
|
---|
[10705] | 2263 | case PGMMODE_NESTED: return "Nested";
|
---|
[10822] | 2264 | case PGMMODE_EPT: return "EPT";
|
---|
[1] | 2265 | default: return "unknown mode value";
|
---|
| 2266 | }
|
---|
| 2267 | }
|
---|
| 2268 |
|
---|
| 2269 |
|
---|
[30861] | 2270 |
|
---|
[1] | 2271 | /**
|
---|
[30861] | 2272 | * Notification from CPUM that the EFER.NXE bit has changed.
|
---|
| 2273 | *
|
---|
| 2274 | * @param pVCpu The virtual CPU for which EFER changed.
|
---|
| 2275 | * @param fNxe The new NXE state.
|
---|
| 2276 | */
|
---|
| 2277 | VMM_INT_DECL(void) PGMNotifyNxeChanged(PVMCPU pVCpu, bool fNxe)
|
---|
| 2278 | {
|
---|
[37452] | 2279 | /** @todo VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu); */
|
---|
[30889] | 2280 | Log(("PGMNotifyNxeChanged: fNxe=%RTbool\n", fNxe));
|
---|
[37354] | 2281 |
|
---|
[31054] | 2282 | pVCpu->pgm.s.fNoExecuteEnabled = fNxe;
|
---|
[30889] | 2283 | if (fNxe)
|
---|
| 2284 | {
|
---|
| 2285 | /*pVCpu->pgm.s.fGst32BitMbzBigPdeMask - N/A */
|
---|
| 2286 | pVCpu->pgm.s.fGstPaeMbzPteMask &= ~X86_PTE_PAE_NX;
|
---|
| 2287 | pVCpu->pgm.s.fGstPaeMbzPdeMask &= ~X86_PDE_PAE_NX;
|
---|
| 2288 | pVCpu->pgm.s.fGstPaeMbzBigPdeMask &= ~X86_PDE2M_PAE_NX;
|
---|
| 2289 | /*pVCpu->pgm.s.fGstPaeMbzPdpeMask - N/A */
|
---|
| 2290 | pVCpu->pgm.s.fGstAmd64MbzPteMask &= ~X86_PTE_PAE_NX;
|
---|
| 2291 | pVCpu->pgm.s.fGstAmd64MbzPdeMask &= ~X86_PDE_PAE_NX;
|
---|
| 2292 | pVCpu->pgm.s.fGstAmd64MbzBigPdeMask &= ~X86_PDE2M_PAE_NX;
|
---|
| 2293 | pVCpu->pgm.s.fGstAmd64MbzPdpeMask &= ~X86_PDPE_LM_NX;
|
---|
| 2294 | pVCpu->pgm.s.fGstAmd64MbzBigPdpeMask &= ~X86_PDPE_LM_NX;
|
---|
| 2295 | pVCpu->pgm.s.fGstAmd64MbzPml4eMask &= ~X86_PML4E_NX;
|
---|
[31849] | 2296 |
|
---|
| 2297 | pVCpu->pgm.s.fGst64ShadowedPteMask |= X86_PTE_PAE_NX;
|
---|
| 2298 | pVCpu->pgm.s.fGst64ShadowedPdeMask |= X86_PDE_PAE_NX;
|
---|
| 2299 | pVCpu->pgm.s.fGst64ShadowedBigPdeMask |= X86_PDE2M_PAE_NX;
|
---|
| 2300 | pVCpu->pgm.s.fGst64ShadowedBigPde4PteMask |= X86_PDE2M_PAE_NX;
|
---|
[31997] | 2301 | pVCpu->pgm.s.fGstAmd64ShadowedPdpeMask |= X86_PDPE_LM_NX;
|
---|
| 2302 | pVCpu->pgm.s.fGstAmd64ShadowedPml4eMask |= X86_PML4E_NX;
|
---|
[30889] | 2303 | }
|
---|
| 2304 | else
|
---|
| 2305 | {
|
---|
| 2306 | /*pVCpu->pgm.s.fGst32BitMbzBigPdeMask - N/A */
|
---|
| 2307 | pVCpu->pgm.s.fGstPaeMbzPteMask |= X86_PTE_PAE_NX;
|
---|
| 2308 | pVCpu->pgm.s.fGstPaeMbzPdeMask |= X86_PDE_PAE_NX;
|
---|
| 2309 | pVCpu->pgm.s.fGstPaeMbzBigPdeMask |= X86_PDE2M_PAE_NX;
|
---|
[31849] | 2310 | /*pVCpu->pgm.s.fGstPaeMbzPdpeMask -N/A */
|
---|
[30889] | 2311 | pVCpu->pgm.s.fGstAmd64MbzPteMask |= X86_PTE_PAE_NX;
|
---|
| 2312 | pVCpu->pgm.s.fGstAmd64MbzPdeMask |= X86_PDE_PAE_NX;
|
---|
| 2313 | pVCpu->pgm.s.fGstAmd64MbzBigPdeMask |= X86_PDE2M_PAE_NX;
|
---|
| 2314 | pVCpu->pgm.s.fGstAmd64MbzPdpeMask |= X86_PDPE_LM_NX;
|
---|
| 2315 | pVCpu->pgm.s.fGstAmd64MbzBigPdpeMask |= X86_PDPE_LM_NX;
|
---|
| 2316 | pVCpu->pgm.s.fGstAmd64MbzPml4eMask |= X86_PML4E_NX;
|
---|
[31849] | 2317 |
|
---|
| 2318 | pVCpu->pgm.s.fGst64ShadowedPteMask &= ~X86_PTE_PAE_NX;
|
---|
| 2319 | pVCpu->pgm.s.fGst64ShadowedPdeMask &= ~X86_PDE_PAE_NX;
|
---|
| 2320 | pVCpu->pgm.s.fGst64ShadowedBigPdeMask &= ~X86_PDE2M_PAE_NX;
|
---|
| 2321 | pVCpu->pgm.s.fGst64ShadowedBigPde4PteMask &= ~X86_PDE2M_PAE_NX;
|
---|
[31997] | 2322 | pVCpu->pgm.s.fGstAmd64ShadowedPdpeMask &= ~X86_PDPE_LM_NX;
|
---|
| 2323 | pVCpu->pgm.s.fGstAmd64ShadowedPml4eMask &= ~X86_PML4E_NX;
|
---|
[30889] | 2324 | }
|
---|
[30861] | 2325 | }
|
---|
| 2326 |
|
---|
| 2327 |
|
---|
| 2328 | /**
|
---|
[24197] | 2329 | * Check if any pgm pool pages are marked dirty (not monitored)
|
---|
| 2330 | *
|
---|
| 2331 | * @returns bool locked/not locked
|
---|
[41783] | 2332 | * @param pVM Pointer to the VM.
|
---|
[24197] | 2333 | */
|
---|
| 2334 | VMMDECL(bool) PGMHasDirtyPages(PVM pVM)
|
---|
| 2335 | {
|
---|
[24201] | 2336 | return pVM->pgm.s.CTX_SUFF(pPool)->cDirtyPages != 0;
|
---|
[24197] | 2337 | }
|
---|
| 2338 |
|
---|
[19471] | 2339 |
|
---|
| 2340 | /**
|
---|
[19474] | 2341 | * Check if this VCPU currently owns the PGM lock.
|
---|
| 2342 | *
|
---|
| 2343 | * @returns bool owner/not owner
|
---|
[41783] | 2344 | * @param pVM Pointer to the VM.
|
---|
[19474] | 2345 | */
|
---|
| 2346 | VMMDECL(bool) PGMIsLockOwner(PVM pVM)
|
---|
| 2347 | {
|
---|
[38953] | 2348 | return PDMCritSectIsOwner(&pVM->pgm.s.CritSectX);
|
---|
[19474] | 2349 | }
|
---|
| 2350 |
|
---|
| 2351 |
|
---|
| 2352 | /**
|
---|
[26685] | 2353 | * Enable or disable large page usage
|
---|
| 2354 | *
|
---|
[37354] | 2355 | * @returns VBox status code.
|
---|
[41783] | 2356 | * @param pVM Pointer to the VM.
|
---|
[26685] | 2357 | * @param fUseLargePages Use/not use large pages
|
---|
| 2358 | */
|
---|
[37354] | 2359 | VMMDECL(int) PGMSetLargePageUsage(PVM pVM, bool fUseLargePages)
|
---|
[26685] | 2360 | {
|
---|
[37354] | 2361 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
| 2362 |
|
---|
[36009] | 2363 | pVM->fUseLargePages = fUseLargePages;
|
---|
[37354] | 2364 | return VINF_SUCCESS;
|
---|
[26685] | 2365 | }
|
---|
| 2366 |
|
---|
[37354] | 2367 |
|
---|
[26685] | 2368 | /**
|
---|
[1] | 2369 | * Acquire the PGM lock.
|
---|
| 2370 | *
|
---|
| 2371 | * @returns VBox status code
|
---|
[41783] | 2372 | * @param pVM Pointer to the VM.
|
---|
[1] | 2373 | */
|
---|
| 2374 | int pgmLock(PVM pVM)
|
---|
| 2375 | {
|
---|
[38953] | 2376 | int rc = PDMCritSectEnter(&pVM->pgm.s.CritSectX, VERR_SEM_BUSY);
|
---|
[20873] | 2377 | #if defined(IN_RC) || defined(IN_RING0)
|
---|
[1] | 2378 | if (rc == VERR_SEM_BUSY)
|
---|
[20874] | 2379 | rc = VMMRZCallRing3NoCpu(pVM, VMMCALLRING3_PGM_LOCK, 0);
|
---|
[1] | 2380 | #endif
|
---|
[17509] | 2381 | AssertMsg(rc == VINF_SUCCESS, ("%Rrc\n", rc));
|
---|
[1] | 2382 | return rc;
|
---|
| 2383 | }
|
---|
| 2384 |
|
---|
| 2385 |
|
---|
| 2386 | /**
|
---|
| 2387 | * Release the PGM lock.
|
---|
| 2388 | *
|
---|
| 2389 | * @returns VBox status code
|
---|
[41783] | 2390 | * @param pVM Pointer to the VM.
|
---|
[1] | 2391 | */
|
---|
| 2392 | void pgmUnlock(PVM pVM)
|
---|
| 2393 | {
|
---|
[38953] | 2394 | uint32_t cDeprecatedPageLocks = pVM->pgm.s.cDeprecatedPageLocks;
|
---|
| 2395 | pVM->pgm.s.cDeprecatedPageLocks = 0;
|
---|
| 2396 | int rc = PDMCritSectLeave(&pVM->pgm.s.CritSectX);
|
---|
| 2397 | if (rc == VINF_SEM_NESTED)
|
---|
| 2398 | pVM->pgm.s.cDeprecatedPageLocks = cDeprecatedPageLocks;
|
---|
[1] | 2399 | }
|
---|
| 2400 |
|
---|
[13832] | 2401 | #if defined(IN_RC) || defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
|
---|
[1] | 2402 |
|
---|
[31402] | 2403 | /**
|
---|
| 2404 | * Common worker for pgmRZDynMapGCPageOffInlined and pgmRZDynMapGCPageV2Inlined.
|
---|
| 2405 | *
|
---|
| 2406 | * @returns VBox status code.
|
---|
[41783] | 2407 | * @param pVM Pointer to the VM.
|
---|
[31402] | 2408 | * @param pVCpu The current CPU.
|
---|
| 2409 | * @param GCPhys The guest physical address of the page to map. The
|
---|
| 2410 | * offset bits are not ignored.
|
---|
| 2411 | * @param ppv Where to return the address corresponding to @a GCPhys.
|
---|
| 2412 | */
|
---|
| 2413 | int pgmRZDynMapGCPageCommon(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys, void **ppv RTLOG_COMMA_SRC_POS_DECL)
|
---|
[30326] | 2414 | {
|
---|
| 2415 | pgmLock(pVM);
|
---|
| 2416 |
|
---|
| 2417 | /*
|
---|
[31402] | 2418 | * Convert it to a writable page and it on to the dynamic mapper.
|
---|
[30326] | 2419 | */
|
---|
| 2420 | int rc;
|
---|
[36891] | 2421 | PPGMPAGE pPage = pgmPhysGetPage(pVM, GCPhys);
|
---|
[30326] | 2422 | if (RT_LIKELY(pPage))
|
---|
| 2423 | {
|
---|
| 2424 | rc = pgmPhysPageMakeWritable(pVM, pPage, GCPhys);
|
---|
| 2425 | if (RT_SUCCESS(rc))
|
---|
| 2426 | {
|
---|
[31402] | 2427 | void *pv;
|
---|
| 2428 | rc = pgmRZDynMapHCPageInlined(pVCpu, PGM_PAGE_GET_HCPHYS(pPage), &pv RTLOG_COMMA_SRC_POS_ARGS);
|
---|
| 2429 | if (RT_SUCCESS(rc))
|
---|
| 2430 | *ppv = (void *)((uintptr_t)pv | ((uintptr_t)GCPhys & PAGE_OFFSET_MASK));
|
---|
[30326] | 2431 | }
|
---|
| 2432 | else
|
---|
| 2433 | AssertRC(rc);
|
---|
| 2434 | }
|
---|
| 2435 | else
|
---|
| 2436 | {
|
---|
| 2437 | AssertMsgFailed(("Invalid physical address %RGp!\n", GCPhys));
|
---|
| 2438 | rc = VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
|
---|
| 2439 | }
|
---|
| 2440 |
|
---|
| 2441 | pgmUnlock(pVM);
|
---|
| 2442 | return rc;
|
---|
| 2443 | }
|
---|
| 2444 |
|
---|
[17305] | 2445 | #endif /* IN_RC || VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0 */
|
---|
[17433] | 2446 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
[17305] | 2447 |
|
---|
| 2448 | /** Format handler for PGMPAGE.
|
---|
| 2449 | * @copydoc FNRTSTRFORMATTYPE */
|
---|
| 2450 | static DECLCALLBACK(size_t) pgmFormatTypeHandlerPage(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
---|
[30326] | 2451 | const char *pszType, void const *pvValue,
|
---|
| 2452 | int cchWidth, int cchPrecision, unsigned fFlags,
|
---|
| 2453 | void *pvUser)
|
---|
[17305] | 2454 | {
|
---|
| 2455 | size_t cch;
|
---|
| 2456 | PCPGMPAGE pPage = (PCPGMPAGE)pvValue;
|
---|
[39078] | 2457 | if (RT_VALID_PTR(pPage))
|
---|
[17305] | 2458 | {
|
---|
[17316] | 2459 | char szTmp[64+80];
|
---|
| 2460 |
|
---|
| 2461 | cch = 0;
|
---|
| 2462 |
|
---|
| 2463 | /* The single char state stuff. */
|
---|
| 2464 | static const char s_achPageStates[4] = { 'Z', 'A', 'W', 'S' };
|
---|
[37354] | 2465 | szTmp[cch++] = s_achPageStates[PGM_PAGE_GET_STATE_NA(pPage)];
|
---|
[17316] | 2466 |
|
---|
| 2467 | #define IS_PART_INCLUDED(lvl) ( !(fFlags & RTSTR_F_PRECISION) || cchPrecision == (lvl) || cchPrecision >= (lvl)+10 )
|
---|
| 2468 | if (IS_PART_INCLUDED(5))
|
---|
[17305] | 2469 | {
|
---|
[17316] | 2470 | static const char s_achHandlerStates[4] = { '-', 't', 'w', 'a' };
|
---|
| 2471 | szTmp[cch++] = s_achHandlerStates[PGM_PAGE_GET_HNDL_PHYS_STATE(pPage)];
|
---|
| 2472 | szTmp[cch++] = s_achHandlerStates[PGM_PAGE_GET_HNDL_VIRT_STATE(pPage)];
|
---|
[17305] | 2473 | }
|
---|
[17316] | 2474 |
|
---|
| 2475 | /* The type. */
|
---|
| 2476 | if (IS_PART_INCLUDED(4))
|
---|
| 2477 | {
|
---|
| 2478 | szTmp[cch++] = ':';
|
---|
[17507] | 2479 | static const char s_achPageTypes[8][4] = { "INV", "RAM", "MI2", "M2A", "SHA", "ROM", "MIO", "BAD" };
|
---|
[37354] | 2480 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][0];
|
---|
| 2481 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][1];
|
---|
| 2482 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][2];
|
---|
[17316] | 2483 | }
|
---|
| 2484 |
|
---|
| 2485 | /* The numbers. */
|
---|
| 2486 | if (IS_PART_INCLUDED(3))
|
---|
| 2487 | {
|
---|
| 2488 | szTmp[cch++] = ':';
|
---|
[37354] | 2489 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_HCPHYS_NA(pPage), 16, 12, 0, RTSTR_F_ZEROPAD | RTSTR_F_64BIT);
|
---|
[17316] | 2490 | }
|
---|
| 2491 |
|
---|
| 2492 | if (IS_PART_INCLUDED(2))
|
---|
| 2493 | {
|
---|
| 2494 | szTmp[cch++] = ':';
|
---|
| 2495 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_PAGEID(pPage), 16, 7, 0, RTSTR_F_ZEROPAD | RTSTR_F_32BIT);
|
---|
| 2496 | }
|
---|
| 2497 |
|
---|
| 2498 | if (IS_PART_INCLUDED(6))
|
---|
| 2499 | {
|
---|
| 2500 | szTmp[cch++] = ':';
|
---|
| 2501 | static const char s_achRefs[4] = { '-', 'U', '!', 'L' };
|
---|
[37354] | 2502 | szTmp[cch++] = s_achRefs[PGM_PAGE_GET_TD_CREFS_NA(pPage)];
|
---|
| 2503 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_TD_IDX_NA(pPage), 16, 4, 0, RTSTR_F_ZEROPAD | RTSTR_F_16BIT);
|
---|
[17316] | 2504 | }
|
---|
| 2505 | #undef IS_PART_INCLUDED
|
---|
| 2506 |
|
---|
[17305] | 2507 | cch = pfnOutput(pvArgOutput, szTmp, cch);
|
---|
| 2508 | }
|
---|
| 2509 | else
|
---|
| 2510 | cch = pfnOutput(pvArgOutput, "<bad-pgmpage-ptr>", sizeof("<bad-pgmpage-ptr>") - 1);
|
---|
[39078] | 2511 | NOREF(pszType); NOREF(cchWidth); NOREF(pvUser);
|
---|
[17305] | 2512 | return cch;
|
---|
| 2513 | }
|
---|
| 2514 |
|
---|
| 2515 |
|
---|
| 2516 | /** Format handler for PGMRAMRANGE.
|
---|
| 2517 | * @copydoc FNRTSTRFORMATTYPE */
|
---|
| 2518 | static DECLCALLBACK(size_t) pgmFormatTypeHandlerRamRange(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
---|
| 2519 | const char *pszType, void const *pvValue,
|
---|
| 2520 | int cchWidth, int cchPrecision, unsigned fFlags,
|
---|
| 2521 | void *pvUser)
|
---|
| 2522 | {
|
---|
| 2523 | size_t cch;
|
---|
| 2524 | PGMRAMRANGE const *pRam = (PGMRAMRANGE const *)pvValue;
|
---|
| 2525 | if (VALID_PTR(pRam))
|
---|
| 2526 | {
|
---|
| 2527 | char szTmp[80];
|
---|
| 2528 | cch = RTStrPrintf(szTmp, sizeof(szTmp), "%RGp-%RGp", pRam->GCPhys, pRam->GCPhysLast);
|
---|
| 2529 | cch = pfnOutput(pvArgOutput, szTmp, cch);
|
---|
| 2530 | }
|
---|
| 2531 | else
|
---|
| 2532 | cch = pfnOutput(pvArgOutput, "<bad-pgmramrange-ptr>", sizeof("<bad-pgmramrange-ptr>") - 1);
|
---|
[39078] | 2533 | NOREF(pszType); NOREF(cchWidth); NOREF(cchPrecision); NOREF(pvUser); NOREF(fFlags);
|
---|
[17305] | 2534 | return cch;
|
---|
| 2535 | }
|
---|
| 2536 |
|
---|
| 2537 | /** Format type andlers to be registered/deregistered. */
|
---|
| 2538 | static const struct
|
---|
| 2539 | {
|
---|
| 2540 | char szType[24];
|
---|
| 2541 | PFNRTSTRFORMATTYPE pfnHandler;
|
---|
| 2542 | } g_aPgmFormatTypes[] =
|
---|
| 2543 | {
|
---|
| 2544 | { "pgmpage", pgmFormatTypeHandlerPage },
|
---|
| 2545 | { "pgmramrange", pgmFormatTypeHandlerRamRange }
|
---|
| 2546 | };
|
---|
| 2547 |
|
---|
[17433] | 2548 | #endif /* !IN_R0 || LOG_ENABLED */
|
---|
[17305] | 2549 |
|
---|
| 2550 | /**
|
---|
| 2551 | * Registers the global string format types.
|
---|
| 2552 | *
|
---|
| 2553 | * This should be called at module load time or in some other manner that ensure
|
---|
| 2554 | * that it's called exactly one time.
|
---|
| 2555 | *
|
---|
| 2556 | * @returns IPRT status code on RTStrFormatTypeRegister failure.
|
---|
| 2557 | */
|
---|
| 2558 | VMMDECL(int) PGMRegisterStringFormatTypes(void)
|
---|
| 2559 | {
|
---|
[17432] | 2560 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
[17305] | 2561 | int rc = VINF_SUCCESS;
|
---|
| 2562 | unsigned i;
|
---|
| 2563 | for (i = 0; RT_SUCCESS(rc) && i < RT_ELEMENTS(g_aPgmFormatTypes); i++)
|
---|
| 2564 | {
|
---|
| 2565 | rc = RTStrFormatTypeRegister(g_aPgmFormatTypes[i].szType, g_aPgmFormatTypes[i].pfnHandler, NULL);
|
---|
| 2566 | # ifdef IN_RING0
|
---|
| 2567 | if (rc == VERR_ALREADY_EXISTS)
|
---|
| 2568 | {
|
---|
| 2569 | /* in case of cleanup failure in ring-0 */
|
---|
| 2570 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 2571 | rc = RTStrFormatTypeRegister(g_aPgmFormatTypes[i].szType, g_aPgmFormatTypes[i].pfnHandler, NULL);
|
---|
| 2572 | }
|
---|
| 2573 | # endif
|
---|
| 2574 | }
|
---|
| 2575 | if (RT_FAILURE(rc))
|
---|
| 2576 | while (i-- > 0)
|
---|
| 2577 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 2578 |
|
---|
| 2579 | return rc;
|
---|
| 2580 | #else
|
---|
| 2581 | return VINF_SUCCESS;
|
---|
| 2582 | #endif
|
---|
| 2583 | }
|
---|
| 2584 |
|
---|
| 2585 |
|
---|
| 2586 | /**
|
---|
| 2587 | * Deregisters the global string format types.
|
---|
| 2588 | *
|
---|
| 2589 | * This should be called at module unload time or in some other manner that
|
---|
| 2590 | * ensure that it's called exactly one time.
|
---|
| 2591 | */
|
---|
| 2592 | VMMDECL(void) PGMDeregisterStringFormatTypes(void)
|
---|
| 2593 | {
|
---|
[17432] | 2594 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
[17305] | 2595 | for (unsigned i = 0; i < RT_ELEMENTS(g_aPgmFormatTypes); i++)
|
---|
| 2596 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 2597 | #endif
|
---|
| 2598 | }
|
---|
| 2599 |
|
---|
[1] | 2600 | #ifdef VBOX_STRICT
|
---|
| 2601 |
|
---|
| 2602 | /**
|
---|
| 2603 | * Asserts that there are no mapping conflicts.
|
---|
| 2604 | *
|
---|
| 2605 | * @returns Number of conflicts.
|
---|
[41783] | 2606 | * @param pVM Pointer to the VM.
|
---|
[1] | 2607 | */
|
---|
[12989] | 2608 | VMMDECL(unsigned) PGMAssertNoMappingConflicts(PVM pVM)
|
---|
[1] | 2609 | {
|
---|
| 2610 | unsigned cErrors = 0;
|
---|
| 2611 |
|
---|
[18927] | 2612 | /* Only applies to raw mode -> 1 VPCU */
|
---|
[22890] | 2613 | Assert(pVM->cCpus == 1);
|
---|
[18927] | 2614 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
| 2615 |
|
---|
[1] | 2616 | /*
|
---|
| 2617 | * Check for mapping conflicts.
|
---|
| 2618 | */
|
---|
[13019] | 2619 | for (PPGMMAPPING pMapping = pVM->pgm.s.CTX_SUFF(pMappings);
|
---|
[1] | 2620 | pMapping;
|
---|
[13019] | 2621 | pMapping = pMapping->CTX_SUFF(pNext))
|
---|
[1] | 2622 | {
|
---|
| 2623 | /** @todo This is slow and should be optimized, but since it's just assertions I don't care now. */
|
---|
[13937] | 2624 | for (RTGCPTR GCPtr = pMapping->GCPtr;
|
---|
[13936] | 2625 | GCPtr <= pMapping->GCPtrLast;
|
---|
[1] | 2626 | GCPtr += PAGE_SIZE)
|
---|
| 2627 | {
|
---|
[18988] | 2628 | int rc = PGMGstGetPage(pVCpu, (RTGCPTR)GCPtr, NULL, NULL);
|
---|
[1] | 2629 | if (rc != VERR_PAGE_TABLE_NOT_PRESENT)
|
---|
| 2630 | {
|
---|
[13823] | 2631 | AssertMsgFailed(("Conflict at %RGv with %s\n", GCPtr, R3STRING(pMapping->pszDesc)));
|
---|
[1] | 2632 | cErrors++;
|
---|
| 2633 | break;
|
---|
| 2634 | }
|
---|
| 2635 | }
|
---|
| 2636 | }
|
---|
| 2637 |
|
---|
| 2638 | return cErrors;
|
---|
| 2639 | }
|
---|
| 2640 |
|
---|
| 2641 |
|
---|
| 2642 | /**
|
---|
| 2643 | * Asserts that everything related to the guest CR3 is correctly shadowed.
|
---|
| 2644 | *
|
---|
| 2645 | * This will call PGMAssertNoMappingConflicts() and PGMAssertHandlerAndFlagsInSync(),
|
---|
| 2646 | * and assert the correctness of the guest CR3 mapping before asserting that the
|
---|
| 2647 | * shadow page tables is in sync with the guest page tables.
|
---|
| 2648 | *
|
---|
| 2649 | * @returns Number of conflicts.
|
---|
[41783] | 2650 | * @param pVM Pointer to the VM.
|
---|
[41802] | 2651 | * @param pVCpu Pointer to the VMCPU.
|
---|
[1] | 2652 | * @param cr3 The current guest CR3 register value.
|
---|
| 2653 | * @param cr4 The current guest CR4 register value.
|
---|
| 2654 | */
|
---|
[18927] | 2655 | VMMDECL(unsigned) PGMAssertCR3(PVM pVM, PVMCPU pVCpu, uint64_t cr3, uint64_t cr4)
|
---|
[1] | 2656 | {
|
---|
[31123] | 2657 | STAM_PROFILE_START(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,SyncCR3), a);
|
---|
[20767] | 2658 | pgmLock(pVM);
|
---|
[18992] | 2659 | unsigned cErrors = PGM_BTH_PFN(AssertCR3, pVCpu)(pVCpu, cr3, cr4, 0, ~(RTGCPTR)0);
|
---|
[20767] | 2660 | pgmUnlock(pVM);
|
---|
[31123] | 2661 | STAM_PROFILE_STOP(&pVCpu->pgm.s.CTX_SUFF(pStats)->CTX_MID_Z(Stat,SyncCR3), a);
|
---|
[1] | 2662 | return cErrors;
|
---|
| 2663 | }
|
---|
| 2664 |
|
---|
| 2665 | #endif /* VBOX_STRICT */
|
---|