| 1 | /* $Id: PATMSSM.cpp 50575 2014-02-25 13:07:16Z vboxsync $ */
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| 2 | /** @file
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| 3 | * PATMSSM - Dynamic Guest OS Patching Manager; Save and load state
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| 4 | *
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| 5 | * NOTE: CSAM assumes patch memory is never reused!!
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | * Copyright (C) 2006-2013 Oracle Corporation
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| 10 | *
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| 11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 12 | * available from http://www.virtualbox.org. This file is free software;
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| 13 | * you can redistribute it and/or modify it under the terms of the GNU
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| 14 | * General Public License (GPL) as published by the Free Software
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| 15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 18 | */
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| 19 |
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| 20 | /*******************************************************************************
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| 21 | * Header Files *
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| 22 | *******************************************************************************/
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| 23 | #define LOG_GROUP LOG_GROUP_PATM
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| 24 | #include <VBox/vmm/patm.h>
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| 25 | #include <VBox/vmm/cpum.h>
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| 26 | #include <VBox/vmm/cpumctx-v1_6.h>
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| 27 | #include <VBox/vmm/mm.h>
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| 28 | #include <VBox/vmm/ssm.h>
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| 29 | #include <VBox/param.h>
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| 30 | #include <iprt/avl.h>
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| 31 | #include "PATMInternal.h"
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| 32 | #include "PATMPatch.h"
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| 33 | #include "PATMA.h"
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| 34 | #include <VBox/vmm/vm.h>
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| 35 | #include <VBox/vmm/csam.h>
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| 36 | #include "internal/pgm.h"
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| 37 | #include <VBox/dbg.h>
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| 38 | #include <VBox/err.h>
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| 39 | #include <VBox/log.h>
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| 40 | #include <iprt/assert.h>
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| 41 | #include <iprt/asm.h>
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| 42 | #include <iprt/string.h>
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| 43 | #include <VBox/dis.h>
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| 44 | #include <VBox/disopcode.h>
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| 45 | #include <VBox/version.h>
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| 46 |
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| 47 | /**
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| 48 | * Patch information - SSM version.
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| 49 | *
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| 50 | * the difference is the missing pTrampolinePatchesHead member
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| 51 | * to avoid changing the saved state version for now (will come later).
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| 52 | */
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| 53 | typedef struct PATCHINFOSSM
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| 54 | {
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| 55 | uint32_t uState;
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| 56 | uint32_t uOldState;
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| 57 | DISCPUMODE uOpMode;
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| 58 |
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| 59 | /* GC pointer of privileged instruction */
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| 60 | RCPTRTYPE(uint8_t *) pPrivInstrGC;
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| 61 | R3PTRTYPE(uint8_t *) unusedHC; /* todo Can't remove due to structure size dependencies in saved states. */
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| 62 | uint8_t aPrivInstr[MAX_INSTR_SIZE];
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| 63 | uint32_t cbPrivInstr;
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| 64 | uint32_t opcode; //opcode for priv instr (OP_*)
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| 65 | uint32_t cbPatchJump; //patch jump size
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| 66 |
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| 67 | /* Only valid for PATMFL_JUMP_CONFLICT patches */
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| 68 | RTRCPTR pPatchJumpDestGC;
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| 69 |
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| 70 | RTGCUINTPTR32 pPatchBlockOffset;
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| 71 | uint32_t cbPatchBlockSize;
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| 72 | uint32_t uCurPatchOffset;
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| 73 | #if HC_ARCH_BITS == 64
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| 74 | uint32_t Alignment0; /**< Align flags correctly. */
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| 75 | #endif
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| 76 |
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| 77 | uint64_t flags;
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| 78 |
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| 79 | /**
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| 80 | * Lowest and highest patched GC instruction address. To optimize searches.
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| 81 | */
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| 82 | RTRCPTR pInstrGCLowest;
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| 83 | RTRCPTR pInstrGCHighest;
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| 84 |
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| 85 | /* Tree of fixup records for the patch. */
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| 86 | R3PTRTYPE(PAVLPVNODECORE) FixupTree;
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| 87 | uint32_t nrFixups;
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| 88 |
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| 89 | /* Tree of jumps inside the generated patch code. */
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| 90 | uint32_t nrJumpRecs;
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| 91 | R3PTRTYPE(PAVLPVNODECORE) JumpTree;
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| 92 |
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| 93 | /**
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| 94 | * Lookup trees for determining the corresponding guest address of an
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| 95 | * instruction in the patch block.
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| 96 | */
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| 97 | R3PTRTYPE(PAVLU32NODECORE) Patch2GuestAddrTree;
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| 98 | R3PTRTYPE(PAVLU32NODECORE) Guest2PatchAddrTree;
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| 99 | uint32_t nrPatch2GuestRecs;
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| 100 | #if HC_ARCH_BITS == 64
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| 101 | uint32_t Alignment1;
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| 102 | #endif
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| 103 |
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| 104 | /* Unused, but can't remove due to structure size dependencies in the saved state. */
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| 105 | PATMP2GLOOKUPREC_OBSOLETE unused;
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| 106 |
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| 107 | /* Temporary information during patch creation. Don't waste hypervisor memory for this. */
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| 108 | R3PTRTYPE(PPATCHINFOTEMP) pTempInfo;
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| 109 |
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| 110 | /* Count the number of writes to the corresponding guest code. */
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| 111 | uint32_t cCodeWrites;
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| 112 |
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| 113 | /* Count the number of invalid writes to pages monitored for the patch. */
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| 114 | //some statistics to determine if we should keep this patch activated
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| 115 | uint32_t cTraps;
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| 116 |
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| 117 | uint32_t cInvalidWrites;
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| 118 |
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| 119 | // Index into the uPatchRun and uPatchTrap arrays (0..MAX_PATCHES-1)
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| 120 | uint32_t uPatchIdx;
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| 121 |
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| 122 | /* First opcode byte, that's overwritten when a patch is marked dirty. */
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| 123 | uint8_t bDirtyOpcode;
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| 124 | uint8_t Alignment2[7]; /**< Align the structure size on a 8-byte boundary. */
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| 125 | } PATCHINFOSSM, *PPATCHINFOSSM;
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| 126 |
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| 127 | /**
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| 128 | * Lookup record for patches - SSM version.
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| 129 | */
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| 130 | typedef struct PATMPATCHRECSSM
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| 131 | {
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| 132 | /** The key is a GC virtual address. */
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| 133 | AVLOU32NODECORE Core;
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| 134 | /** The key is a patch offset. */
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| 135 | AVLOU32NODECORE CoreOffset;
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| 136 |
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| 137 | PATCHINFOSSM patch;
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| 138 | } PATMPATCHRECSSM, *PPATMPATCHRECSSM;
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| 139 |
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| 140 |
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| 141 | /*******************************************************************************
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| 142 | * Internal Functions *
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| 143 | *******************************************************************************/
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| 144 | static void patmCorrectFixup(PVM pVM, unsigned ulSSMVersion, PATM &patmInfo, PPATCHINFO pPatch, PRELOCREC pRec, int32_t offset, RTRCPTR *pFixup);
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| 145 |
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| 146 | /*******************************************************************************
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| 147 | * Global Variables *
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| 148 | *******************************************************************************/
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| 149 | /**
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| 150 | * SSM descriptor table for the PATM structure.
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| 151 | */
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| 152 | static SSMFIELD const g_aPatmFields[] =
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| 153 | {
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| 154 | /** @todo there are a bunch more fields here which can be marked as ignored. */
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| 155 | SSMFIELD_ENTRY_IGNORE( PATM, offVM),
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| 156 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchMemGC),
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| 157 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pPatchMemHC),
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| 158 | SSMFIELD_ENTRY( PATM, cbPatchMem),
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| 159 | SSMFIELD_ENTRY( PATM, offPatchMem),
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| 160 | SSMFIELD_ENTRY( PATM, fOutOfMemory),
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| 161 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 3),
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| 162 | SSMFIELD_ENTRY( PATM, deltaReloc),
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| 163 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGCStateHC),
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| 164 | SSMFIELD_ENTRY_RCPTR( PATM, pGCStateGC),
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| 165 | SSMFIELD_ENTRY_RCPTR( PATM, pGCStackGC),
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| 166 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGCStackHC),
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| 167 | SSMFIELD_ENTRY_RCPTR( PATM, pCPUMCtxGC),
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| 168 | SSMFIELD_ENTRY_RCPTR( PATM, pStatsGC),
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| 169 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pStatsHC),
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| 170 | SSMFIELD_ENTRY( PATM, uCurrentPatchIdx),
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| 171 | SSMFIELD_ENTRY( PATM, ulCallDepth),
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| 172 | SSMFIELD_ENTRY( PATM, cPageRecords),
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| 173 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchedInstrGCLowest),
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| 174 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchedInstrGCHighest),
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| 175 | SSMFIELD_ENTRY_RCPTR( PATM, PatchLookupTreeGC),
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| 176 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, PatchLookupTreeHC),
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| 177 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperCallGC),
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| 178 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperRetGC),
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| 179 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperJumpGC),
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| 180 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperIretGC),
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| 181 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGlobalPatchRec),
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| 182 | SSMFIELD_ENTRY_RCPTR( PATM, pfnSysEnterGC),
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| 183 | SSMFIELD_ENTRY_RCPTR( PATM, pfnSysEnterPatchGC),
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| 184 | SSMFIELD_ENTRY( PATM, uSysEnterPatchIdx),
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| 185 | SSMFIELD_ENTRY_RCPTR( PATM, pvFaultMonitor),
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| 186 | SSMFIELD_ENTRY_GCPHYS( PATM, mmio.GCPhys),
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| 187 | SSMFIELD_ENTRY_RCPTR( PATM, mmio.pCachedData),
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| 188 | SSMFIELD_ENTRY_IGN_RCPTR( PATM, mmio.Alignment0),
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| 189 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, savedstate.pSSM),
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| 190 | SSMFIELD_ENTRY( PATM, savedstate.cPatches),
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| 191 | SSMFIELD_ENTRY_PAD_HC64( PATM, savedstate.Alignment0, sizeof(uint32_t)),
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| 192 | SSMFIELD_ENTRY_IGNORE( PATM, StatNrOpcodeRead),
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| 193 | SSMFIELD_ENTRY_IGNORE( PATM, StatDisabled),
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| 194 | SSMFIELD_ENTRY_IGNORE( PATM, StatUnusable),
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| 195 | SSMFIELD_ENTRY_IGNORE( PATM, StatEnabled),
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| 196 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalled),
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| 197 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledFunctionPatches),
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| 198 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledTrampoline),
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| 199 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledJump),
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| 200 | SSMFIELD_ENTRY_IGNORE( PATM, StatInt3Callable),
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| 201 | SSMFIELD_ENTRY_IGNORE( PATM, StatInt3BlockRun),
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| 202 | SSMFIELD_ENTRY_IGNORE( PATM, StatOverwritten),
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| 203 | SSMFIELD_ENTRY_IGNORE( PATM, StatFixedConflicts),
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| 204 | SSMFIELD_ENTRY_IGNORE( PATM, StatFlushed),
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| 205 | SSMFIELD_ENTRY_IGNORE( PATM, StatPageBoundaryCrossed),
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| 206 | SSMFIELD_ENTRY_IGNORE( PATM, StatMonitored),
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| 207 | SSMFIELD_ENTRY_IGNORE( PATM, StatHandleTrap),
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| 208 | SSMFIELD_ENTRY_IGNORE( PATM, StatSwitchBack),
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| 209 | SSMFIELD_ENTRY_IGNORE( PATM, StatSwitchBackFail),
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| 210 | SSMFIELD_ENTRY_IGNORE( PATM, StatPATMMemoryUsed),
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| 211 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateREQSuccess),
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| 212 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateREQFailed),
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| 213 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateUseExisting),
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| 214 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionFound),
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| 215 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionNotFound),
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| 216 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWrite),
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| 217 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteDetect),
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| 218 | SSMFIELD_ENTRY_IGNORE( PATM, StatDirty),
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| 219 | SSMFIELD_ENTRY_IGNORE( PATM, StatPushTrap),
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| 220 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteInterpreted),
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| 221 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteInterpretedFailed),
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| 222 | SSMFIELD_ENTRY_IGNORE( PATM, StatSysEnter),
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| 223 | SSMFIELD_ENTRY_IGNORE( PATM, StatSysExit),
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| 224 | SSMFIELD_ENTRY_IGNORE( PATM, StatEmulIret),
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| 225 | SSMFIELD_ENTRY_IGNORE( PATM, StatEmulIretFailed),
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| 226 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirty),
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| 227 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirtyGood),
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| 228 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirtyBad),
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| 229 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchPageInserted),
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| 230 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchPageRemoved),
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| 231 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchRefreshSuccess),
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| 232 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchRefreshFailed),
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| 233 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenRet),
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| 234 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenRetReused),
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| 235 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenJump),
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| 236 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenCall),
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| 237 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenPopf),
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| 238 | SSMFIELD_ENTRY_IGNORE( PATM, StatCheckPendingIRQ),
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| 239 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionLookupReplace),
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| 240 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionLookupInsert),
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| 241 | SSMFIELD_ENTRY_IGNORE( PATM, StatU32FunctionMaxSlotsUsed),
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| 242 | SSMFIELD_ENTRY_IGNORE( PATM, Alignment0),
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| 243 | SSMFIELD_ENTRY_TERM()
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| 244 | };
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| 245 |
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| 246 | /**
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| 247 | * SSM descriptor table for the PATM structure starting with r86139.
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| 248 | */
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| 249 | static SSMFIELD const g_aPatmFields86139[] =
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| 250 | {
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| 251 | /** @todo there are a bunch more fields here which can be marked as ignored. */
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| 252 | SSMFIELD_ENTRY_IGNORE( PATM, offVM),
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| 253 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchMemGC),
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| 254 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pPatchMemHC),
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| 255 | SSMFIELD_ENTRY( PATM, cbPatchMem),
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| 256 | SSMFIELD_ENTRY( PATM, offPatchMem),
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| 257 | SSMFIELD_ENTRY( PATM, fOutOfMemory),
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| 258 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 3),
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| 259 | SSMFIELD_ENTRY( PATM, deltaReloc),
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| 260 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGCStateHC),
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| 261 | SSMFIELD_ENTRY_RCPTR( PATM, pGCStateGC),
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| 262 | SSMFIELD_ENTRY_RCPTR( PATM, pGCStackGC),
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| 263 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGCStackHC),
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| 264 | SSMFIELD_ENTRY_RCPTR( PATM, pCPUMCtxGC),
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| 265 | SSMFIELD_ENTRY_RCPTR( PATM, pStatsGC),
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| 266 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pStatsHC),
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| 267 | SSMFIELD_ENTRY( PATM, uCurrentPatchIdx),
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| 268 | SSMFIELD_ENTRY( PATM, ulCallDepth),
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| 269 | SSMFIELD_ENTRY( PATM, cPageRecords),
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| 270 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchedInstrGCLowest),
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| 271 | SSMFIELD_ENTRY_RCPTR( PATM, pPatchedInstrGCHighest),
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| 272 | SSMFIELD_ENTRY_RCPTR( PATM, PatchLookupTreeGC),
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| 273 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, PatchLookupTreeHC),
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| 274 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperCallGC),
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| 275 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperRetGC),
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| 276 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperJumpGC),
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| 277 | SSMFIELD_ENTRY_RCPTR( PATM, pfnHelperIretGC),
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| 278 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, pGlobalPatchRec),
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| 279 | SSMFIELD_ENTRY_RCPTR( PATM, pfnSysEnterGC),
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| 280 | SSMFIELD_ENTRY_RCPTR( PATM, pfnSysEnterPatchGC),
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| 281 | SSMFIELD_ENTRY( PATM, uSysEnterPatchIdx),
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| 282 | SSMFIELD_ENTRY_RCPTR( PATM, pvFaultMonitor),
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| 283 | SSMFIELD_ENTRY_GCPHYS( PATM, mmio.GCPhys),
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| 284 | SSMFIELD_ENTRY_RCPTR( PATM, mmio.pCachedData),
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| 285 | SSMFIELD_ENTRY_IGN_RCPTR( PATM, mmio.Alignment0),
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| 286 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, savedstate.pSSM),
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| 287 | SSMFIELD_ENTRY( PATM, savedstate.cPatches),
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| 288 | SSMFIELD_ENTRY_PAD_HC64( PATM, savedstate.Alignment0, sizeof(uint32_t)),
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| 289 | SSMFIELD_ENTRY_IGN_HCPTR( PATM, hDbgModPatchMem),
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| 290 | SSMFIELD_ENTRY_PAD_HC32( PATM, Alignment0, sizeof(uint32_t)),
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| 291 | SSMFIELD_ENTRY_IGNORE( PATM, StatNrOpcodeRead),
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| 292 | SSMFIELD_ENTRY_IGNORE( PATM, StatDisabled),
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| 293 | SSMFIELD_ENTRY_IGNORE( PATM, StatUnusable),
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| 294 | SSMFIELD_ENTRY_IGNORE( PATM, StatEnabled),
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| 295 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalled),
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| 296 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledFunctionPatches),
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| 297 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledTrampoline),
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| 298 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstalledJump),
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| 299 | SSMFIELD_ENTRY_IGNORE( PATM, StatInt3Callable),
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| 300 | SSMFIELD_ENTRY_IGNORE( PATM, StatInt3BlockRun),
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| 301 | SSMFIELD_ENTRY_IGNORE( PATM, StatOverwritten),
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| 302 | SSMFIELD_ENTRY_IGNORE( PATM, StatFixedConflicts),
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| 303 | SSMFIELD_ENTRY_IGNORE( PATM, StatFlushed),
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| 304 | SSMFIELD_ENTRY_IGNORE( PATM, StatPageBoundaryCrossed),
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| 305 | SSMFIELD_ENTRY_IGNORE( PATM, StatMonitored),
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| 306 | SSMFIELD_ENTRY_IGNORE( PATM, StatHandleTrap),
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| 307 | SSMFIELD_ENTRY_IGNORE( PATM, StatSwitchBack),
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| 308 | SSMFIELD_ENTRY_IGNORE( PATM, StatSwitchBackFail),
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| 309 | SSMFIELD_ENTRY_IGNORE( PATM, StatPATMMemoryUsed),
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| 310 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateREQSuccess),
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| 311 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateREQFailed),
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| 312 | SSMFIELD_ENTRY_IGNORE( PATM, StatDuplicateUseExisting),
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| 313 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionFound),
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| 314 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionNotFound),
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| 315 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWrite),
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| 316 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteDetect),
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| 317 | SSMFIELD_ENTRY_IGNORE( PATM, StatDirty),
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| 318 | SSMFIELD_ENTRY_IGNORE( PATM, StatPushTrap),
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| 319 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteInterpreted),
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| 320 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchWriteInterpretedFailed),
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| 321 | SSMFIELD_ENTRY_IGNORE( PATM, StatSysEnter),
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| 322 | SSMFIELD_ENTRY_IGNORE( PATM, StatSysExit),
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| 323 | SSMFIELD_ENTRY_IGNORE( PATM, StatEmulIret),
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| 324 | SSMFIELD_ENTRY_IGNORE( PATM, StatEmulIretFailed),
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| 325 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirty),
|
|---|
| 326 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirtyGood),
|
|---|
| 327 | SSMFIELD_ENTRY_IGNORE( PATM, StatInstrDirtyBad),
|
|---|
| 328 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchPageInserted),
|
|---|
| 329 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchPageRemoved),
|
|---|
| 330 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchRefreshSuccess),
|
|---|
| 331 | SSMFIELD_ENTRY_IGNORE( PATM, StatPatchRefreshFailed),
|
|---|
| 332 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenRet),
|
|---|
| 333 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenRetReused),
|
|---|
| 334 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenJump),
|
|---|
| 335 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenCall),
|
|---|
| 336 | SSMFIELD_ENTRY_IGNORE( PATM, StatGenPopf),
|
|---|
| 337 | SSMFIELD_ENTRY_IGNORE( PATM, StatCheckPendingIRQ),
|
|---|
| 338 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionLookupReplace),
|
|---|
| 339 | SSMFIELD_ENTRY_IGNORE( PATM, StatFunctionLookupInsert),
|
|---|
| 340 | SSMFIELD_ENTRY_IGNORE( PATM, StatU32FunctionMaxSlotsUsed),
|
|---|
| 341 | SSMFIELD_ENTRY_IGNORE( PATM, Alignment0),
|
|---|
| 342 | SSMFIELD_ENTRY_TERM()
|
|---|
| 343 | };
|
|---|
| 344 |
|
|---|
| 345 | /**
|
|---|
| 346 | * SSM descriptor table for the PATMGCSTATE structure.
|
|---|
| 347 | */
|
|---|
| 348 | static SSMFIELD const g_aPatmGCStateFields[] =
|
|---|
| 349 | {
|
|---|
| 350 | SSMFIELD_ENTRY( PATMGCSTATE, uVMFlags),
|
|---|
| 351 | SSMFIELD_ENTRY( PATMGCSTATE, uPendingAction),
|
|---|
| 352 | SSMFIELD_ENTRY( PATMGCSTATE, uPatchCalls),
|
|---|
| 353 | SSMFIELD_ENTRY( PATMGCSTATE, uScratch),
|
|---|
| 354 | SSMFIELD_ENTRY( PATMGCSTATE, uIretEFlags),
|
|---|
| 355 | SSMFIELD_ENTRY( PATMGCSTATE, uIretCS),
|
|---|
| 356 | SSMFIELD_ENTRY( PATMGCSTATE, uIretEIP),
|
|---|
| 357 | SSMFIELD_ENTRY( PATMGCSTATE, Psp),
|
|---|
| 358 | SSMFIELD_ENTRY( PATMGCSTATE, fPIF),
|
|---|
| 359 | SSMFIELD_ENTRY_RCPTR( PATMGCSTATE, GCPtrInhibitInterrupts),
|
|---|
| 360 | SSMFIELD_ENTRY_RCPTR( PATMGCSTATE, GCCallPatchTargetAddr),
|
|---|
| 361 | SSMFIELD_ENTRY_RCPTR( PATMGCSTATE, GCCallReturnAddr),
|
|---|
| 362 | SSMFIELD_ENTRY( PATMGCSTATE, Restore.uEAX),
|
|---|
| 363 | SSMFIELD_ENTRY( PATMGCSTATE, Restore.uECX),
|
|---|
| 364 | SSMFIELD_ENTRY( PATMGCSTATE, Restore.uEDI),
|
|---|
| 365 | SSMFIELD_ENTRY( PATMGCSTATE, Restore.eFlags),
|
|---|
| 366 | SSMFIELD_ENTRY( PATMGCSTATE, Restore.uFlags),
|
|---|
| 367 | SSMFIELD_ENTRY_TERM()
|
|---|
| 368 | };
|
|---|
| 369 |
|
|---|
| 370 | /**
|
|---|
| 371 | * SSM descriptor table for the PATMPATCHREC structure.
|
|---|
| 372 | */
|
|---|
| 373 | static SSMFIELD const g_aPatmPatchRecFields[] =
|
|---|
| 374 | {
|
|---|
| 375 | SSMFIELD_ENTRY( PATMPATCHRECSSM, Core.Key),
|
|---|
| 376 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, Core.pLeft),
|
|---|
| 377 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, Core.pRight),
|
|---|
| 378 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, Core.uchHeight),
|
|---|
| 379 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 3),
|
|---|
| 380 | SSMFIELD_ENTRY( PATMPATCHRECSSM, CoreOffset.Key),
|
|---|
| 381 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, CoreOffset.pLeft),
|
|---|
| 382 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, CoreOffset.pRight),
|
|---|
| 383 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, CoreOffset.uchHeight),
|
|---|
| 384 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 3),
|
|---|
| 385 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.uState),
|
|---|
| 386 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.uOldState),
|
|---|
| 387 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.uOpMode),
|
|---|
| 388 | SSMFIELD_ENTRY_RCPTR( PATMPATCHRECSSM, patch.pPrivInstrGC),
|
|---|
| 389 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.unusedHC),
|
|---|
| 390 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.aPrivInstr),
|
|---|
| 391 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cbPrivInstr),
|
|---|
| 392 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.opcode),
|
|---|
| 393 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cbPatchJump),
|
|---|
| 394 | SSMFIELD_ENTRY_RCPTR( PATMPATCHRECSSM, patch.pPatchJumpDestGC),
|
|---|
| 395 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.pPatchBlockOffset),
|
|---|
| 396 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cbPatchBlockSize),
|
|---|
| 397 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.uCurPatchOffset),
|
|---|
| 398 | SSMFIELD_ENTRY_PAD_HC64( PATMPATCHRECSSM, patch.Alignment0, sizeof(uint32_t)),
|
|---|
| 399 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.flags),
|
|---|
| 400 | SSMFIELD_ENTRY_RCPTR( PATMPATCHRECSSM, patch.pInstrGCLowest),
|
|---|
| 401 | SSMFIELD_ENTRY_RCPTR( PATMPATCHRECSSM, patch.pInstrGCHighest),
|
|---|
| 402 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.FixupTree),
|
|---|
| 403 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.nrFixups),
|
|---|
| 404 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.nrJumpRecs), // should be zero?
|
|---|
| 405 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.JumpTree),
|
|---|
| 406 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.Patch2GuestAddrTree),
|
|---|
| 407 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.Guest2PatchAddrTree),
|
|---|
| 408 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.nrPatch2GuestRecs),
|
|---|
| 409 | SSMFIELD_ENTRY_PAD_HC64( PATMPATCHRECSSM, patch.Alignment1, sizeof(uint32_t)),
|
|---|
| 410 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.unused.pPatchLocStartHC), // saved as zero
|
|---|
| 411 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.unused.pPatchLocEndHC), // ditto
|
|---|
| 412 | SSMFIELD_ENTRY_IGN_RCPTR( PATMPATCHRECSSM, patch.unused.pGuestLoc), // ditto
|
|---|
| 413 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, patch.unused.opsize), // ditto
|
|---|
| 414 | SSMFIELD_ENTRY_IGN_HCPTR( PATMPATCHRECSSM, patch.pTempInfo),
|
|---|
| 415 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cCodeWrites),
|
|---|
| 416 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cTraps),
|
|---|
| 417 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.cInvalidWrites),
|
|---|
| 418 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.uPatchIdx),
|
|---|
| 419 | SSMFIELD_ENTRY( PATMPATCHRECSSM, patch.bDirtyOpcode),
|
|---|
| 420 | SSMFIELD_ENTRY_IGNORE( PATMPATCHRECSSM, patch.Alignment2),
|
|---|
| 421 | SSMFIELD_ENTRY_TERM()
|
|---|
| 422 | };
|
|---|
| 423 |
|
|---|
| 424 | /**
|
|---|
| 425 | * SSM descriptor table for the RELOCREC structure.
|
|---|
| 426 | */
|
|---|
| 427 | static SSMFIELD const g_aPatmRelocRec[] =
|
|---|
| 428 | {
|
|---|
| 429 | SSMFIELD_ENTRY_HCPTR_HACK_U32( RELOCREC, Core.Key), // Used to store the relocation type
|
|---|
| 430 | SSMFIELD_ENTRY_IGN_HCPTR( RELOCREC, Core.pLeft),
|
|---|
| 431 | SSMFIELD_ENTRY_IGN_HCPTR( RELOCREC, Core.pRight),
|
|---|
| 432 | SSMFIELD_ENTRY_IGNORE( RELOCREC, Core.uchHeight),
|
|---|
| 433 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 7),
|
|---|
| 434 | SSMFIELD_ENTRY( RELOCREC, uType),
|
|---|
| 435 | SSMFIELD_ENTRY_PAD_HC_AUTO( 0, 4),
|
|---|
| 436 | SSMFIELD_ENTRY_HCPTR_HACK_U32( RELOCREC, pRelocPos), // converted to a patch member offset.
|
|---|
| 437 | SSMFIELD_ENTRY_RCPTR( RELOCREC, pSource),
|
|---|
| 438 | SSMFIELD_ENTRY_RCPTR( RELOCREC, pDest),
|
|---|
| 439 | SSMFIELD_ENTRY_TERM()
|
|---|
| 440 | };
|
|---|
| 441 |
|
|---|
| 442 | /**
|
|---|
| 443 | * SSM descriptor table for the RECPATCHTOGUEST structure.
|
|---|
| 444 | */
|
|---|
| 445 | static SSMFIELD const g_aPatmRecPatchToGuest[] =
|
|---|
| 446 | {
|
|---|
| 447 | SSMFIELD_ENTRY( RECPATCHTOGUEST, Core.Key),
|
|---|
| 448 | SSMFIELD_ENTRY_PAD_HC_AUTO( 0, 4),
|
|---|
| 449 | SSMFIELD_ENTRY_IGN_HCPTR( RECPATCHTOGUEST, Core.pLeft),
|
|---|
| 450 | SSMFIELD_ENTRY_IGN_HCPTR( RECPATCHTOGUEST, Core.pRight),
|
|---|
| 451 | SSMFIELD_ENTRY_IGNORE( RECPATCHTOGUEST, Core.uchHeight),
|
|---|
| 452 | SSMFIELD_ENTRY_PAD_HC_AUTO( 3, 7),
|
|---|
| 453 | SSMFIELD_ENTRY_RCPTR( RECPATCHTOGUEST, pOrgInstrGC),
|
|---|
| 454 | SSMFIELD_ENTRY( RECPATCHTOGUEST, enmType),
|
|---|
| 455 | SSMFIELD_ENTRY( RECPATCHTOGUEST, fDirty),
|
|---|
| 456 | SSMFIELD_ENTRY( RECPATCHTOGUEST, fJumpTarget),
|
|---|
| 457 | SSMFIELD_ENTRY( RECPATCHTOGUEST, u8DirtyOpcode),
|
|---|
| 458 | SSMFIELD_ENTRY_PAD_HC_AUTO( 1, 5),
|
|---|
| 459 | SSMFIELD_ENTRY_TERM()
|
|---|
| 460 | };
|
|---|
| 461 |
|
|---|
| 462 | #ifdef VBOX_STRICT
|
|---|
| 463 |
|
|---|
| 464 | /**
|
|---|
| 465 | * Callback function for RTAvlPVDoWithAll
|
|---|
| 466 | *
|
|---|
| 467 | * Counts the number of patches in the tree
|
|---|
| 468 | *
|
|---|
| 469 | * @returns VBox status code.
|
|---|
| 470 | * @param pNode Current node
|
|---|
| 471 | * @param pcPatches Pointer to patch counter (uint32_t)
|
|---|
| 472 | */
|
|---|
| 473 | static DECLCALLBACK(int) patmCountLeafPV(PAVLPVNODECORE pNode, void *pcPatches)
|
|---|
| 474 | {
|
|---|
| 475 | NOREF(pNode);
|
|---|
| 476 | *(uint32_t *)pcPatches = *(uint32_t *)pcPatches + 1;
|
|---|
| 477 | return VINF_SUCCESS;
|
|---|
| 478 | }
|
|---|
| 479 |
|
|---|
| 480 | /**
|
|---|
| 481 | * Callback function for RTAvlU32DoWithAll
|
|---|
| 482 | *
|
|---|
| 483 | * Counts the number of patches in the tree
|
|---|
| 484 | *
|
|---|
| 485 | * @returns VBox status code.
|
|---|
| 486 | * @param pNode Current node
|
|---|
| 487 | * @param pcPatches Pointer to patch counter (uint32_t)
|
|---|
| 488 | */
|
|---|
| 489 | static DECLCALLBACK(int) patmCountLeaf(PAVLU32NODECORE pNode, void *pcPatches)
|
|---|
| 490 | {
|
|---|
| 491 | NOREF(pNode);
|
|---|
| 492 | *(uint32_t *)pcPatches = *(uint32_t *)pcPatches + 1;
|
|---|
| 493 | return VINF_SUCCESS;
|
|---|
| 494 | }
|
|---|
| 495 |
|
|---|
| 496 | #endif /* VBOX_STRICT */
|
|---|
| 497 |
|
|---|
| 498 | /**
|
|---|
| 499 | * Callback function for RTAvloU32DoWithAll
|
|---|
| 500 | *
|
|---|
| 501 | * Counts the number of patches in the tree
|
|---|
| 502 | *
|
|---|
| 503 | * @returns VBox status code.
|
|---|
| 504 | * @param pNode Current node
|
|---|
| 505 | * @param pcPatches Pointer to patch counter
|
|---|
| 506 | */
|
|---|
| 507 | static DECLCALLBACK(int) patmCountPatch(PAVLOU32NODECORE pNode, void *pcPatches)
|
|---|
| 508 | {
|
|---|
| 509 | NOREF(pNode);
|
|---|
| 510 | *(uint32_t *)pcPatches = *(uint32_t *)pcPatches + 1;
|
|---|
| 511 | return VINF_SUCCESS;
|
|---|
| 512 | }
|
|---|
| 513 |
|
|---|
| 514 | /**
|
|---|
| 515 | * Callback function for RTAvlU32DoWithAll
|
|---|
| 516 | *
|
|---|
| 517 | * Saves all patch to guest lookup records.
|
|---|
| 518 | *
|
|---|
| 519 | * @returns VBox status code.
|
|---|
| 520 | * @param pNode Current node
|
|---|
| 521 | * @param pVM1 Pointer to the VM
|
|---|
| 522 | */
|
|---|
| 523 | static DECLCALLBACK(int) patmSaveP2GLookupRecords(PAVLU32NODECORE pNode, void *pVM1)
|
|---|
| 524 | {
|
|---|
| 525 | PVM pVM = (PVM)pVM1;
|
|---|
| 526 | PSSMHANDLE pSSM = pVM->patm.s.savedstate.pSSM;
|
|---|
| 527 | PRECPATCHTOGUEST pPatchToGuestRec = (PRECPATCHTOGUEST)pNode;
|
|---|
| 528 |
|
|---|
| 529 | /* Save the lookup record. */
|
|---|
| 530 | int rc = SSMR3PutStructEx(pSSM, pPatchToGuestRec, sizeof(RECPATCHTOGUEST), 0 /*fFlags*/, &g_aPatmRecPatchToGuest[0], NULL);
|
|---|
| 531 | AssertRCReturn(rc, rc);
|
|---|
| 532 |
|
|---|
| 533 | return VINF_SUCCESS;
|
|---|
| 534 | }
|
|---|
| 535 |
|
|---|
| 536 | /**
|
|---|
| 537 | * Callback function for RTAvlPVDoWithAll
|
|---|
| 538 | *
|
|---|
| 539 | * Saves all patch to guest lookup records.
|
|---|
| 540 | *
|
|---|
| 541 | * @returns VBox status code.
|
|---|
| 542 | * @param pNode Current node
|
|---|
| 543 | * @param pVM1 Pointer to the VM
|
|---|
| 544 | */
|
|---|
| 545 | static DECLCALLBACK(int) patmSaveFixupRecords(PAVLPVNODECORE pNode, void *pVM1)
|
|---|
| 546 | {
|
|---|
| 547 | PVM pVM = (PVM)pVM1;
|
|---|
| 548 | PSSMHANDLE pSSM = pVM->patm.s.savedstate.pSSM;
|
|---|
| 549 | RELOCREC rec = *(PRELOCREC)pNode;
|
|---|
| 550 | RTRCPTR *pFixup = (RTRCPTR *)rec.pRelocPos;
|
|---|
| 551 |
|
|---|
| 552 | /* Convert pointer to an offset into patch memory. May not be applicable
|
|---|
| 553 | to all fixup types, thus the UINT32_MAX. */
|
|---|
| 554 | Assert(rec.pRelocPos);
|
|---|
| 555 | uintptr_t offRelocPos = (uintptr_t)rec.pRelocPos - (uintptr_t)pVM->patm.s.pPatchMemHC;
|
|---|
| 556 | if (offRelocPos > pVM->patm.s.cbPatchMem)
|
|---|
| 557 | offRelocPos = UINT32_MAX;
|
|---|
| 558 | rec.pRelocPos = (uint8_t *)offRelocPos;
|
|---|
| 559 |
|
|---|
| 560 | /* Zero rec.Core.Key since it's unused and may trigger SSM check due to the hack below. */
|
|---|
| 561 | rec.Core.Key = 0;
|
|---|
| 562 |
|
|---|
| 563 | if (rec.uType == FIXUP_ABSOLUTE)
|
|---|
| 564 | {
|
|---|
| 565 | /* Core.Key abused to store the fixup type. */
|
|---|
| 566 | if (*pFixup == pVM->pVMRC + RT_OFFSETOF(VM, aCpus[0].fLocalForcedActions))
|
|---|
| 567 | rec.Core.Key = (AVLPVKEY)PATM_FIXUP_CPU_FF_ACTION;
|
|---|
| 568 | else
|
|---|
| 569 | if (*pFixup == CPUMR3GetGuestCpuIdDefRCPtr(pVM))
|
|---|
| 570 | rec.Core.Key = (AVLPVKEY)PATM_FIXUP_CPUID_DEFAULT;
|
|---|
| 571 | else
|
|---|
| 572 | if (*pFixup == CPUMR3GetGuestCpuIdStdRCPtr(pVM))
|
|---|
| 573 | rec.Core.Key = (AVLPVKEY)PATM_FIXUP_CPUID_STANDARD;
|
|---|
| 574 | else
|
|---|
| 575 | if (*pFixup == CPUMR3GetGuestCpuIdExtRCPtr(pVM))
|
|---|
| 576 | rec.Core.Key = (AVLPVKEY)PATM_FIXUP_CPUID_EXTENDED;
|
|---|
| 577 | else
|
|---|
| 578 | if (*pFixup == CPUMR3GetGuestCpuIdCentaurRCPtr(pVM))
|
|---|
| 579 | rec.Core.Key = (AVLPVKEY)PATM_FIXUP_CPUID_CENTAUR;
|
|---|
| 580 | }
|
|---|
| 581 |
|
|---|
| 582 | /* Save the lookup record. */
|
|---|
| 583 | int rc = SSMR3PutStructEx(pSSM, &rec, sizeof(rec), 0 /*fFlags*/, &g_aPatmRelocRec[0], NULL);
|
|---|
| 584 | AssertRCReturn(rc, rc);
|
|---|
| 585 |
|
|---|
| 586 | return VINF_SUCCESS;
|
|---|
| 587 | }
|
|---|
| 588 |
|
|---|
| 589 | /**
|
|---|
| 590 | * Converts a saved state patch record to the memory record.
|
|---|
| 591 | *
|
|---|
| 592 | * @returns nothing.
|
|---|
| 593 | * @param pPatch The memory record.
|
|---|
| 594 | * @param pPatchSSM The SSM version of the patch record.
|
|---|
| 595 | */
|
|---|
| 596 | static void patmR3PatchConvertSSM2Mem(PPATMPATCHREC pPatch, PPATMPATCHRECSSM pPatchSSM)
|
|---|
| 597 | {
|
|---|
| 598 | /*
|
|---|
| 599 | * Only restore the patch part of the tree record; not the internal data (except the key of course)
|
|---|
| 600 | */
|
|---|
| 601 | pPatch->Core.Key = pPatchSSM->Core.Key;
|
|---|
| 602 | pPatch->CoreOffset.Key = pPatchSSM->CoreOffset.Key;
|
|---|
| 603 | pPatch->patch.uState = pPatchSSM->patch.uState;
|
|---|
| 604 | pPatch->patch.uOldState = pPatchSSM->patch.uOldState;
|
|---|
| 605 | pPatch->patch.uOpMode = pPatchSSM->patch.uOpMode;
|
|---|
| 606 | pPatch->patch.pPrivInstrGC = pPatchSSM->patch.pPrivInstrGC;
|
|---|
| 607 | pPatch->patch.unusedHC = pPatchSSM->patch.unusedHC;
|
|---|
| 608 | memcpy(&pPatch->patch.aPrivInstr[0], &pPatchSSM->patch.aPrivInstr[0], MAX_INSTR_SIZE);
|
|---|
| 609 | pPatch->patch.cbPrivInstr = pPatchSSM->patch.cbPrivInstr;
|
|---|
| 610 | pPatch->patch.opcode = pPatchSSM->patch.opcode;
|
|---|
| 611 | pPatch->patch.cbPatchJump = pPatchSSM->patch.cbPatchJump;
|
|---|
| 612 | pPatch->patch.pPatchJumpDestGC = pPatchSSM->patch.pPatchJumpDestGC;
|
|---|
| 613 | pPatch->patch.pPatchBlockOffset = pPatchSSM->patch.pPatchBlockOffset;
|
|---|
| 614 | pPatch->patch.cbPatchBlockSize = pPatchSSM->patch.cbPatchBlockSize;
|
|---|
| 615 | pPatch->patch.uCurPatchOffset = pPatchSSM->patch.uCurPatchOffset;
|
|---|
| 616 | pPatch->patch.flags = pPatchSSM->patch.flags;
|
|---|
| 617 | pPatch->patch.pInstrGCLowest = pPatchSSM->patch.pInstrGCLowest;
|
|---|
| 618 | pPatch->patch.pInstrGCHighest = pPatchSSM->patch.pInstrGCHighest;
|
|---|
| 619 | pPatch->patch.FixupTree = pPatchSSM->patch.FixupTree;
|
|---|
| 620 | pPatch->patch.nrFixups = pPatchSSM->patch.nrFixups;
|
|---|
| 621 | pPatch->patch.nrJumpRecs = pPatchSSM->patch.nrJumpRecs;
|
|---|
| 622 | pPatch->patch.JumpTree = pPatchSSM->patch.JumpTree;
|
|---|
| 623 | pPatch->patch.Patch2GuestAddrTree = pPatchSSM->patch.Patch2GuestAddrTree;
|
|---|
| 624 | pPatch->patch.Guest2PatchAddrTree = pPatchSSM->patch.Guest2PatchAddrTree;
|
|---|
| 625 | pPatch->patch.nrPatch2GuestRecs = pPatchSSM->patch.nrPatch2GuestRecs;
|
|---|
| 626 | pPatch->patch.unused = pPatchSSM->patch.unused;
|
|---|
| 627 | pPatch->patch.pTempInfo = pPatchSSM->patch.pTempInfo;
|
|---|
| 628 | pPatch->patch.cCodeWrites = pPatchSSM->patch.cCodeWrites;
|
|---|
| 629 | pPatch->patch.cTraps = pPatchSSM->patch.cTraps;
|
|---|
| 630 | pPatch->patch.cInvalidWrites = pPatchSSM->patch.cInvalidWrites;
|
|---|
| 631 | pPatch->patch.uPatchIdx = pPatchSSM->patch.uPatchIdx;
|
|---|
| 632 | pPatch->patch.bDirtyOpcode = pPatchSSM->patch.bDirtyOpcode;
|
|---|
| 633 | pPatch->patch.pTrampolinePatchesHead = NULL;
|
|---|
| 634 | }
|
|---|
| 635 |
|
|---|
| 636 | /**
|
|---|
| 637 | * Converts a memory patch record to the saved state version.
|
|---|
| 638 | *
|
|---|
| 639 | * @returns nothing.
|
|---|
| 640 | * @param pPatchSSM The saved state record.
|
|---|
| 641 | * @param pPatch The memory version to save.
|
|---|
| 642 | */
|
|---|
| 643 | static void patmR3PatchConvertMem2SSM(PPATMPATCHRECSSM pPatchSSM, PPATMPATCHREC pPatch)
|
|---|
| 644 | {
|
|---|
| 645 | pPatchSSM->Core = pPatch->Core;
|
|---|
| 646 | pPatchSSM->CoreOffset = pPatch->CoreOffset;
|
|---|
| 647 | pPatchSSM->patch.uState = pPatch->patch.uState;
|
|---|
| 648 | pPatchSSM->patch.uOldState = pPatch->patch.uOldState;
|
|---|
| 649 | pPatchSSM->patch.uOpMode = pPatch->patch.uOpMode;
|
|---|
| 650 | pPatchSSM->patch.pPrivInstrGC = pPatch->patch.pPrivInstrGC;
|
|---|
| 651 | pPatchSSM->patch.unusedHC = pPatch->patch.unusedHC;
|
|---|
| 652 | memcpy(&pPatchSSM->patch.aPrivInstr[0], &pPatch->patch.aPrivInstr[0], MAX_INSTR_SIZE);
|
|---|
| 653 | pPatchSSM->patch.cbPrivInstr = pPatch->patch.cbPrivInstr;
|
|---|
| 654 | pPatchSSM->patch.opcode = pPatch->patch.opcode;
|
|---|
| 655 | pPatchSSM->patch.cbPatchJump = pPatch->patch.cbPatchJump;
|
|---|
| 656 | pPatchSSM->patch.pPatchJumpDestGC = pPatch->patch.pPatchJumpDestGC;
|
|---|
| 657 | pPatchSSM->patch.pPatchBlockOffset = pPatch->patch.pPatchBlockOffset;
|
|---|
| 658 | pPatchSSM->patch.cbPatchBlockSize = pPatch->patch.cbPatchBlockSize;
|
|---|
| 659 | pPatchSSM->patch.uCurPatchOffset = pPatch->patch.uCurPatchOffset;
|
|---|
| 660 | pPatchSSM->patch.flags = pPatch->patch.flags;
|
|---|
| 661 | pPatchSSM->patch.pInstrGCLowest = pPatch->patch.pInstrGCLowest;
|
|---|
| 662 | pPatchSSM->patch.pInstrGCHighest = pPatch->patch.pInstrGCHighest;
|
|---|
| 663 | pPatchSSM->patch.FixupTree = pPatch->patch.FixupTree;
|
|---|
| 664 | pPatchSSM->patch.nrFixups = pPatch->patch.nrFixups;
|
|---|
| 665 | pPatchSSM->patch.nrJumpRecs = pPatch->patch.nrJumpRecs;
|
|---|
| 666 | pPatchSSM->patch.JumpTree = pPatch->patch.JumpTree;
|
|---|
| 667 | pPatchSSM->patch.Patch2GuestAddrTree = pPatch->patch.Patch2GuestAddrTree;
|
|---|
| 668 | pPatchSSM->patch.Guest2PatchAddrTree = pPatch->patch.Guest2PatchAddrTree;
|
|---|
| 669 | pPatchSSM->patch.nrPatch2GuestRecs = pPatch->patch.nrPatch2GuestRecs;
|
|---|
| 670 | pPatchSSM->patch.unused = pPatch->patch.unused;
|
|---|
| 671 | pPatchSSM->patch.pTempInfo = pPatch->patch.pTempInfo;
|
|---|
| 672 | pPatchSSM->patch.cCodeWrites = pPatch->patch.cCodeWrites;
|
|---|
| 673 | pPatchSSM->patch.cTraps = pPatch->patch.cTraps;
|
|---|
| 674 | pPatchSSM->patch.cInvalidWrites = pPatch->patch.cInvalidWrites;
|
|---|
| 675 | pPatchSSM->patch.uPatchIdx = pPatch->patch.uPatchIdx;
|
|---|
| 676 | pPatchSSM->patch.bDirtyOpcode = pPatch->patch.bDirtyOpcode;
|
|---|
| 677 | }
|
|---|
| 678 |
|
|---|
| 679 | /**
|
|---|
| 680 | * Callback function for RTAvloU32DoWithAll
|
|---|
| 681 | *
|
|---|
| 682 | * Saves the state of the patch that's being enumerated
|
|---|
| 683 | *
|
|---|
| 684 | * @returns VBox status code.
|
|---|
| 685 | * @param pNode Current node
|
|---|
| 686 | * @param pVM1 Pointer to the VM
|
|---|
| 687 | */
|
|---|
| 688 | static DECLCALLBACK(int) patmSavePatchState(PAVLOU32NODECORE pNode, void *pVM1)
|
|---|
| 689 | {
|
|---|
| 690 | PVM pVM = (PVM)pVM1;
|
|---|
| 691 | PPATMPATCHREC pPatch = (PPATMPATCHREC)pNode;
|
|---|
| 692 | PATMPATCHRECSSM patch;
|
|---|
| 693 | PSSMHANDLE pSSM = pVM->patm.s.savedstate.pSSM;
|
|---|
| 694 | int rc;
|
|---|
| 695 |
|
|---|
| 696 | Assert(!(pPatch->patch.flags & PATMFL_GLOBAL_FUNCTIONS));
|
|---|
| 697 |
|
|---|
| 698 | patmR3PatchConvertMem2SSM(&patch, pPatch);
|
|---|
| 699 | Log4(("patmSavePatchState: cbPatchJump=%u uCurPathOffset=%#x pInstrGCLowest/Higest=%#x/%#x nrFixups=%#x nrJumpRecs=%#x\n",
|
|---|
| 700 | patch.patch.cbPatchJump, patch.patch.uCurPatchOffset, patch.patch.pInstrGCLowest, patch.patch.pInstrGCHighest,
|
|---|
| 701 | patch.patch.nrFixups, patch.patch.nrJumpRecs));
|
|---|
| 702 |
|
|---|
| 703 | /*
|
|---|
| 704 | * Reset HC pointers that need to be recalculated when loading the state
|
|---|
| 705 | */
|
|---|
| 706 | AssertMsg(patch.patch.uState == PATCH_REFUSED || (patch.patch.pPatchBlockOffset || (patch.patch.flags & (PATMFL_SYSENTER_XP|PATMFL_INT3_REPLACEMENT))),
|
|---|
| 707 | ("State = %x pPatchBlockHC=%08x flags=%x\n", patch.patch.uState, PATCHCODE_PTR_HC(&patch.patch), patch.patch.flags));
|
|---|
| 708 | Assert(pPatch->patch.JumpTree == 0);
|
|---|
| 709 | Assert(!pPatch->patch.pTempInfo || pPatch->patch.pTempInfo->DisasmJumpTree == 0);
|
|---|
| 710 | Assert(!pPatch->patch.pTempInfo || pPatch->patch.pTempInfo->IllegalInstrTree == 0);
|
|---|
| 711 |
|
|---|
| 712 | /* Save the patch record itself */
|
|---|
| 713 | rc = SSMR3PutStructEx(pSSM, &patch, sizeof(patch), 0 /*fFlags*/, &g_aPatmPatchRecFields[0], NULL);
|
|---|
| 714 | AssertRCReturn(rc, rc);
|
|---|
| 715 |
|
|---|
| 716 | /*
|
|---|
| 717 | * Reset HC pointers in fixup records and save them.
|
|---|
| 718 | */
|
|---|
| 719 | #ifdef VBOX_STRICT
|
|---|
| 720 | uint32_t nrFixupRecs = 0;
|
|---|
| 721 | RTAvlPVDoWithAll(&pPatch->patch.FixupTree, true, patmCountLeafPV, &nrFixupRecs);
|
|---|
| 722 | AssertMsg(nrFixupRecs == pPatch->patch.nrFixups, ("Fixup inconsistency! counted %d vs %d\n", nrFixupRecs, pPatch->patch.nrFixups));
|
|---|
| 723 | #endif
|
|---|
| 724 | rc = RTAvlPVDoWithAll(&pPatch->patch.FixupTree, true, patmSaveFixupRecords, pVM);
|
|---|
| 725 | AssertRCReturn(rc, rc);
|
|---|
| 726 |
|
|---|
| 727 | #ifdef VBOX_STRICT
|
|---|
| 728 | uint32_t nrLookupRecords = 0;
|
|---|
| 729 | RTAvlU32DoWithAll(&pPatch->patch.Patch2GuestAddrTree, true, patmCountLeaf, &nrLookupRecords);
|
|---|
| 730 | Assert(nrLookupRecords == pPatch->patch.nrPatch2GuestRecs);
|
|---|
| 731 | #endif
|
|---|
| 732 |
|
|---|
| 733 | rc = RTAvlU32DoWithAll(&pPatch->patch.Patch2GuestAddrTree, true, patmSaveP2GLookupRecords, pVM);
|
|---|
| 734 | AssertRCReturn(rc, rc);
|
|---|
| 735 |
|
|---|
| 736 | return VINF_SUCCESS;
|
|---|
| 737 | }
|
|---|
| 738 |
|
|---|
| 739 | /**
|
|---|
| 740 | * Execute state save operation.
|
|---|
| 741 | *
|
|---|
| 742 | * @returns VBox status code.
|
|---|
| 743 | * @param pVM Pointer to the VM.
|
|---|
| 744 | * @param pSSM SSM operation handle.
|
|---|
| 745 | */
|
|---|
| 746 | DECLCALLBACK(int) patmR3Save(PVM pVM, PSSMHANDLE pSSM)
|
|---|
| 747 | {
|
|---|
| 748 | PATM patmInfo = pVM->patm.s;
|
|---|
| 749 | int rc;
|
|---|
| 750 |
|
|---|
| 751 | pVM->patm.s.savedstate.pSSM = pSSM;
|
|---|
| 752 |
|
|---|
| 753 | /*
|
|---|
| 754 | * Reset HC pointers that need to be recalculated when loading the state
|
|---|
| 755 | */
|
|---|
| 756 | patmInfo.pPatchMemHC = NULL;
|
|---|
| 757 | patmInfo.pGCStateHC = 0;
|
|---|
| 758 | patmInfo.pvFaultMonitor = 0;
|
|---|
| 759 |
|
|---|
| 760 | Assert(patmInfo.ulCallDepth == 0);
|
|---|
| 761 |
|
|---|
| 762 | /*
|
|---|
| 763 | * Count the number of patches in the tree (feeling lazy)
|
|---|
| 764 | */
|
|---|
| 765 | patmInfo.savedstate.cPatches = 0;
|
|---|
| 766 | RTAvloU32DoWithAll(&pVM->patm.s.PatchLookupTreeHC->PatchTree, true, patmCountPatch, &patmInfo.savedstate.cPatches);
|
|---|
| 767 |
|
|---|
| 768 | /*
|
|---|
| 769 | * Save PATM structure
|
|---|
| 770 | */
|
|---|
| 771 | rc = SSMR3PutStructEx(pSSM, &patmInfo, sizeof(patmInfo), 0 /*fFlags*/, &g_aPatmFields[0], NULL);
|
|---|
| 772 | AssertRCReturn(rc, rc);
|
|---|
| 773 |
|
|---|
| 774 | /*
|
|---|
| 775 | * Save patch memory contents
|
|---|
| 776 | */
|
|---|
| 777 | rc = SSMR3PutMem(pSSM, pVM->patm.s.pPatchMemHC, pVM->patm.s.cbPatchMem);
|
|---|
| 778 | AssertRCReturn(rc, rc);
|
|---|
| 779 |
|
|---|
| 780 | /*
|
|---|
| 781 | * Save GC state memory
|
|---|
| 782 | */
|
|---|
| 783 | rc = SSMR3PutStructEx(pSSM, pVM->patm.s.pGCStateHC, sizeof(PATMGCSTATE), 0 /*fFlags*/, &g_aPatmGCStateFields[0], NULL);
|
|---|
| 784 | AssertRCReturn(rc, rc);
|
|---|
| 785 |
|
|---|
| 786 | /*
|
|---|
| 787 | * Save PATM stack page
|
|---|
| 788 | */
|
|---|
| 789 | SSMR3PutU32(pSSM, PATM_STACK_TOTAL_SIZE);
|
|---|
| 790 | rc = SSMR3PutMem(pSSM, pVM->patm.s.pGCStackHC, PATM_STACK_TOTAL_SIZE);
|
|---|
| 791 | AssertRCReturn(rc, rc);
|
|---|
| 792 |
|
|---|
| 793 | /*
|
|---|
| 794 | * Save all patches
|
|---|
| 795 | */
|
|---|
| 796 | rc = RTAvloU32DoWithAll(&pVM->patm.s.PatchLookupTreeHC->PatchTree, true, patmSavePatchState, pVM);
|
|---|
| 797 | AssertRCReturn(rc, rc);
|
|---|
| 798 |
|
|---|
| 799 | /** @note patch statistics are not saved. */
|
|---|
| 800 |
|
|---|
| 801 | return VINF_SUCCESS;
|
|---|
| 802 | }
|
|---|
| 803 |
|
|---|
| 804 |
|
|---|
| 805 | /**
|
|---|
| 806 | * Execute state load operation.
|
|---|
| 807 | *
|
|---|
| 808 | * @returns VBox status code.
|
|---|
| 809 | * @param pVM Pointer to the VM.
|
|---|
| 810 | * @param pSSM SSM operation handle.
|
|---|
| 811 | * @param uVersion Data layout version.
|
|---|
| 812 | * @param uPass The data pass.
|
|---|
| 813 | */
|
|---|
| 814 | DECLCALLBACK(int) patmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
|
|---|
| 815 | {
|
|---|
| 816 | PATM patmInfo;
|
|---|
| 817 | int rc;
|
|---|
| 818 |
|
|---|
| 819 | if ( uVersion != PATM_SSM_VERSION
|
|---|
| 820 | && uVersion != PATM_SSM_VERSION_MEM
|
|---|
| 821 | && uVersion != PATM_SSM_VERSION_FIXUP_HACK
|
|---|
| 822 | && uVersion != PATM_SSM_VERSION_VER16
|
|---|
| 823 | )
|
|---|
| 824 | {
|
|---|
| 825 | AssertMsgFailed(("patmR3Load: Invalid version uVersion=%d!\n", uVersion));
|
|---|
| 826 | return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
|
|---|
| 827 | }
|
|---|
| 828 | uint32_t const fStructRestoreFlags = uVersion <= PATM_SSM_VERSION_MEM ? SSMSTRUCT_FLAGS_MEM_BAND_AID_RELAXED : 0;
|
|---|
| 829 | Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
|
|---|
| 830 |
|
|---|
| 831 | pVM->patm.s.savedstate.pSSM = pSSM;
|
|---|
| 832 |
|
|---|
| 833 | /*
|
|---|
| 834 | * Restore PATM structure
|
|---|
| 835 | */
|
|---|
| 836 | RT_ZERO(patmInfo);
|
|---|
| 837 | if ( uVersion == PATM_SSM_VERSION_MEM
|
|---|
| 838 | && SSMR3HandleRevision(pSSM) >= 86139
|
|---|
| 839 | && SSMR3HandleVersion(pSSM) >= VBOX_FULL_VERSION_MAKE(4, 2, 51))
|
|---|
| 840 | rc = SSMR3GetStructEx(pSSM, &patmInfo, sizeof(patmInfo), SSMSTRUCT_FLAGS_MEM_BAND_AID_RELAXED,
|
|---|
| 841 | &g_aPatmFields86139[0], NULL);
|
|---|
| 842 | else
|
|---|
| 843 | rc = SSMR3GetStructEx(pSSM, &patmInfo, sizeof(patmInfo), fStructRestoreFlags, &g_aPatmFields[0], NULL);
|
|---|
| 844 | AssertRCReturn(rc, rc);
|
|---|
| 845 |
|
|---|
| 846 | /* Relative calls are made to the helper functions. Therefor their relative location must not change! */
|
|---|
| 847 | /* Note: we reuse the saved global helpers and assume they are identical, which is kind of dangerous. */
|
|---|
| 848 | AssertLogRelReturn((pVM->patm.s.pfnHelperCallGC - pVM->patm.s.pPatchMemGC) == (patmInfo.pfnHelperCallGC - patmInfo.pPatchMemGC),
|
|---|
| 849 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 850 | AssertLogRelReturn((pVM->patm.s.pfnHelperRetGC - pVM->patm.s.pPatchMemGC) == (patmInfo.pfnHelperRetGC - patmInfo.pPatchMemGC),
|
|---|
| 851 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 852 | AssertLogRelReturn((pVM->patm.s.pfnHelperJumpGC - pVM->patm.s.pPatchMemGC) == (patmInfo.pfnHelperJumpGC - patmInfo.pPatchMemGC),
|
|---|
| 853 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 854 | AssertLogRelReturn((pVM->patm.s.pfnHelperIretGC - pVM->patm.s.pPatchMemGC) == (patmInfo.pfnHelperIretGC - patmInfo.pPatchMemGC),
|
|---|
| 855 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 856 | AssertLogRelReturn(pVM->patm.s.cbPatchMem == patmInfo.cbPatchMem, VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 857 |
|
|---|
| 858 | pVM->patm.s.offPatchMem = patmInfo.offPatchMem;
|
|---|
| 859 | pVM->patm.s.deltaReloc = patmInfo.deltaReloc;
|
|---|
| 860 | pVM->patm.s.uCurrentPatchIdx = patmInfo.uCurrentPatchIdx;
|
|---|
| 861 | pVM->patm.s.fOutOfMemory = patmInfo.fOutOfMemory;
|
|---|
| 862 |
|
|---|
| 863 | /* Lowest and highest patched instruction */
|
|---|
| 864 | pVM->patm.s.pPatchedInstrGCLowest = patmInfo.pPatchedInstrGCLowest;
|
|---|
| 865 | pVM->patm.s.pPatchedInstrGCHighest = patmInfo.pPatchedInstrGCHighest;
|
|---|
| 866 |
|
|---|
| 867 | /* Sysenter handlers */
|
|---|
| 868 | pVM->patm.s.pfnSysEnterGC = patmInfo.pfnSysEnterGC;
|
|---|
| 869 | pVM->patm.s.pfnSysEnterPatchGC = patmInfo.pfnSysEnterPatchGC;
|
|---|
| 870 | pVM->patm.s.uSysEnterPatchIdx = patmInfo.uSysEnterPatchIdx;
|
|---|
| 871 |
|
|---|
| 872 | Assert(patmInfo.ulCallDepth == 0 && pVM->patm.s.ulCallDepth == 0);
|
|---|
| 873 |
|
|---|
| 874 | Log(("pPatchMemGC %RRv vs old %RRv\n", pVM->patm.s.pPatchMemGC, patmInfo.pPatchMemGC));
|
|---|
| 875 | Log(("pGCStateGC %RRv vs old %RRv\n", pVM->patm.s.pGCStateGC, patmInfo.pGCStateGC));
|
|---|
| 876 | Log(("pGCStackGC %RRv vs old %RRv\n", pVM->patm.s.pGCStackGC, patmInfo.pGCStackGC));
|
|---|
| 877 | Log(("pCPUMCtxGC %RRv vs old %RRv\n", pVM->patm.s.pCPUMCtxGC, patmInfo.pCPUMCtxGC));
|
|---|
| 878 |
|
|---|
| 879 |
|
|---|
| 880 | /** @note patch statistics are not restored. */
|
|---|
| 881 |
|
|---|
| 882 | /*
|
|---|
| 883 | * Restore patch memory contents
|
|---|
| 884 | */
|
|---|
| 885 | Log(("Restore patch memory: new %RRv old %RRv\n", pVM->patm.s.pPatchMemGC, patmInfo.pPatchMemGC));
|
|---|
| 886 | rc = SSMR3GetMem(pSSM, pVM->patm.s.pPatchMemHC, pVM->patm.s.cbPatchMem);
|
|---|
| 887 | AssertRCReturn(rc, rc);
|
|---|
| 888 |
|
|---|
| 889 | /*
|
|---|
| 890 | * Restore GC state memory
|
|---|
| 891 | */
|
|---|
| 892 | RT_BZERO(pVM->patm.s.pGCStateHC, sizeof(PATMGCSTATE));
|
|---|
| 893 | rc = SSMR3GetStructEx(pSSM, pVM->patm.s.pGCStateHC, sizeof(PATMGCSTATE), fStructRestoreFlags, &g_aPatmGCStateFields[0], NULL);
|
|---|
| 894 | AssertRCReturn(rc, rc);
|
|---|
| 895 |
|
|---|
| 896 | /*
|
|---|
| 897 | * Restore PATM stack page
|
|---|
| 898 | */
|
|---|
| 899 | uint32_t cbStack = PATM_STACK_TOTAL_SIZE;
|
|---|
| 900 | if (uVersion > PATM_SSM_VERSION_MEM)
|
|---|
| 901 | {
|
|---|
| 902 | rc = SSMR3GetU32(pSSM, &cbStack);
|
|---|
| 903 | AssertRCReturn(rc, rc);
|
|---|
| 904 | }
|
|---|
| 905 | AssertCompile(!(PATM_STACK_TOTAL_SIZE & 31));
|
|---|
| 906 | AssertLogRelMsgReturn(cbStack > 0 && cbStack <= PATM_STACK_TOTAL_SIZE && !(cbStack & 31),
|
|---|
| 907 | ("cbStack=%#x vs %#x", cbStack, PATM_STACK_TOTAL_SIZE),
|
|---|
| 908 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
|---|
| 909 | rc = SSMR3GetMem(pSSM, pVM->patm.s.pGCStackHC, cbStack);
|
|---|
| 910 | AssertRCReturn(rc, rc);
|
|---|
| 911 | if (cbStack < PATM_STACK_TOTAL_SIZE)
|
|---|
| 912 | memset((uint8_t *)pVM->patm.s.pGCStackHC + cbStack, 0, PATM_STACK_TOTAL_SIZE - cbStack);
|
|---|
| 913 |
|
|---|
| 914 | /*
|
|---|
| 915 | * Load all patches
|
|---|
| 916 | */
|
|---|
| 917 | for (unsigned i = 0; i < patmInfo.savedstate.cPatches; i++)
|
|---|
| 918 | {
|
|---|
| 919 | PATMPATCHRECSSM patch;
|
|---|
| 920 | PATMPATCHREC *pPatchRec;
|
|---|
| 921 |
|
|---|
| 922 | RT_ZERO(patch);
|
|---|
| 923 | rc = SSMR3GetStructEx(pSSM, &patch, sizeof(patch), fStructRestoreFlags, &g_aPatmPatchRecFields[0], NULL);
|
|---|
| 924 | AssertRCReturn(rc, rc);
|
|---|
| 925 | Log4(("patmR3Load: cbPatchJump=%u uCurPathOffset=%#x pInstrGCLowest/Higest=%#x/%#x nrFixups=%#x nrJumpRecs=%#x\n",
|
|---|
| 926 | patch.patch.cbPatchJump, patch.patch.uCurPatchOffset, patch.patch.pInstrGCLowest, patch.patch.pInstrGCHighest,
|
|---|
| 927 | patch.patch.nrFixups, patch.patch.nrJumpRecs));
|
|---|
| 928 |
|
|---|
| 929 | Assert(!(patch.patch.flags & PATMFL_GLOBAL_FUNCTIONS));
|
|---|
| 930 |
|
|---|
| 931 | rc = MMHyperAlloc(pVM, sizeof(PATMPATCHREC), 0, MM_TAG_PATM_PATCH, (void **)&pPatchRec);
|
|---|
| 932 | if (RT_FAILURE(rc))
|
|---|
| 933 | {
|
|---|
| 934 | AssertMsgFailed(("Out of memory!!!!\n"));
|
|---|
| 935 | return VERR_NO_MEMORY;
|
|---|
| 936 | }
|
|---|
| 937 |
|
|---|
| 938 | /* Convert SSM version to memory. */
|
|---|
| 939 | patmR3PatchConvertSSM2Mem(pPatchRec, &patch);
|
|---|
| 940 |
|
|---|
| 941 | Log(("Restoring patch %RRv -> %RRv state %x\n", pPatchRec->patch.pPrivInstrGC, patmInfo.pPatchMemGC + pPatchRec->patch.pPatchBlockOffset, pPatchRec->patch.uState));
|
|---|
| 942 | bool ret = RTAvloU32Insert(&pVM->patm.s.PatchLookupTreeHC->PatchTree, &pPatchRec->Core);
|
|---|
| 943 | Assert(ret);
|
|---|
| 944 | if (pPatchRec->patch.uState != PATCH_REFUSED)
|
|---|
| 945 | {
|
|---|
| 946 | if (pPatchRec->patch.pPatchBlockOffset)
|
|---|
| 947 | {
|
|---|
| 948 | /* We actually generated code for this patch. */
|
|---|
| 949 | ret = RTAvloU32Insert(&pVM->patm.s.PatchLookupTreeHC->PatchTreeByPatchAddr, &pPatchRec->CoreOffset);
|
|---|
| 950 | AssertMsg(ret, ("Inserting patch %RRv offset %08RX32 failed!!\n", pPatchRec->patch.pPrivInstrGC, pPatchRec->CoreOffset.Key));
|
|---|
| 951 | }
|
|---|
| 952 | }
|
|---|
| 953 | /* Set to zero as we don't need it anymore. */
|
|---|
| 954 | pPatchRec->patch.pTempInfo = 0;
|
|---|
| 955 |
|
|---|
| 956 | PATMP2GLOOKUPREC cacheRec;
|
|---|
| 957 | RT_ZERO(cacheRec);
|
|---|
| 958 | cacheRec.pPatch = &pPatchRec->patch;
|
|---|
| 959 |
|
|---|
| 960 | uint8_t *pPrivInstrHC = patmR3GCVirtToHCVirt(pVM, &cacheRec, pPatchRec->patch.pPrivInstrGC);
|
|---|
| 961 | /* Can fail due to page or page table not present. */
|
|---|
| 962 |
|
|---|
| 963 | /*
|
|---|
| 964 | * Restore fixup records and correct HC pointers in fixup records
|
|---|
| 965 | */
|
|---|
| 966 | pPatchRec->patch.FixupTree = 0;
|
|---|
| 967 | pPatchRec->patch.nrFixups = 0; /* increased by patmPatchAddReloc32 */
|
|---|
| 968 | for (unsigned j = 0; j < patch.patch.nrFixups; j++)
|
|---|
| 969 | {
|
|---|
| 970 | RELOCREC rec;
|
|---|
| 971 | int32_t offset;
|
|---|
| 972 | RTRCPTR *pFixup;
|
|---|
| 973 |
|
|---|
| 974 | RT_ZERO(rec);
|
|---|
| 975 | rc = SSMR3GetStructEx(pSSM, &rec, sizeof(rec), fStructRestoreFlags, &g_aPatmRelocRec[0], NULL);
|
|---|
| 976 | AssertRCReturn(rc, rc);
|
|---|
| 977 |
|
|---|
| 978 | if (pPrivInstrHC)
|
|---|
| 979 | {
|
|---|
| 980 | /* rec.pRelocPos now contains the relative position inside the hypervisor area. */
|
|---|
| 981 | offset = (int32_t)(intptr_t)rec.pRelocPos;
|
|---|
| 982 | /* Convert to HC pointer again. */
|
|---|
| 983 | if ((uintptr_t)rec.pRelocPos < pVM->patm.s.cbPatchMem)
|
|---|
| 984 | rec.pRelocPos = pVM->patm.s.pPatchMemHC + (uintptr_t)rec.pRelocPos;
|
|---|
| 985 | else
|
|---|
| 986 | rec.pRelocPos = NULL;
|
|---|
| 987 | pFixup = (RTRCPTR *)rec.pRelocPos;
|
|---|
| 988 |
|
|---|
| 989 | if (pPatchRec->patch.uState != PATCH_REFUSED)
|
|---|
| 990 | {
|
|---|
| 991 | if ( rec.uType == FIXUP_REL_JMPTOPATCH
|
|---|
| 992 | && (pPatchRec->patch.flags & PATMFL_PATCHED_GUEST_CODE))
|
|---|
| 993 | {
|
|---|
| 994 | Assert(pPatchRec->patch.cbPatchJump == SIZEOF_NEARJUMP32 || pPatchRec->patch.cbPatchJump == SIZEOF_NEAR_COND_JUMP32);
|
|---|
| 995 | unsigned offset2 = (pPatchRec->patch.cbPatchJump == SIZEOF_NEARJUMP32) ? 1 : 2;
|
|---|
| 996 |
|
|---|
| 997 | rec.pRelocPos = pPrivInstrHC + offset2;
|
|---|
| 998 | pFixup = (RTRCPTR *)rec.pRelocPos;
|
|---|
| 999 | }
|
|---|
| 1000 |
|
|---|
| 1001 | patmCorrectFixup(pVM, uVersion, patmInfo, &pPatchRec->patch, &rec, offset, pFixup);
|
|---|
| 1002 | }
|
|---|
| 1003 |
|
|---|
| 1004 | rc = patmPatchAddReloc32(pVM, &pPatchRec->patch, rec.pRelocPos, rec.uType, rec.pSource, rec.pDest);
|
|---|
| 1005 | AssertRCReturn(rc, rc);
|
|---|
| 1006 | }
|
|---|
| 1007 | }
|
|---|
| 1008 | /* Release previous lock if any. */
|
|---|
| 1009 | if (cacheRec.Lock.pvMap)
|
|---|
| 1010 | PGMPhysReleasePageMappingLock(pVM, &cacheRec.Lock);
|
|---|
| 1011 |
|
|---|
| 1012 | /* And all patch to guest lookup records */
|
|---|
| 1013 | Assert(pPatchRec->patch.nrPatch2GuestRecs || pPatchRec->patch.uState == PATCH_REFUSED || (pPatchRec->patch.flags & (PATMFL_SYSENTER_XP | PATMFL_IDTHANDLER | PATMFL_TRAPHANDLER | PATMFL_INT3_REPLACEMENT)));
|
|---|
| 1014 |
|
|---|
| 1015 | pPatchRec->patch.Patch2GuestAddrTree = 0;
|
|---|
| 1016 | pPatchRec->patch.Guest2PatchAddrTree = 0;
|
|---|
| 1017 | if (pPatchRec->patch.nrPatch2GuestRecs)
|
|---|
| 1018 | {
|
|---|
| 1019 | RECPATCHTOGUEST rec;
|
|---|
| 1020 | uint32_t nrPatch2GuestRecs = pPatchRec->patch.nrPatch2GuestRecs;
|
|---|
| 1021 |
|
|---|
| 1022 | pPatchRec->patch.nrPatch2GuestRecs = 0; /* incremented by patmr3AddP2GLookupRecord */
|
|---|
| 1023 | for (uint32_t j=0;j<nrPatch2GuestRecs;j++)
|
|---|
| 1024 | {
|
|---|
| 1025 | RT_ZERO(rec);
|
|---|
| 1026 | rc = SSMR3GetStructEx(pSSM, &rec, sizeof(rec), fStructRestoreFlags, &g_aPatmRecPatchToGuest[0], NULL);
|
|---|
| 1027 | AssertRCReturn(rc, rc);
|
|---|
| 1028 |
|
|---|
| 1029 | patmR3AddP2GLookupRecord(pVM, &pPatchRec->patch, (uintptr_t)rec.Core.Key + pVM->patm.s.pPatchMemHC, rec.pOrgInstrGC, rec.enmType, rec.fDirty);
|
|---|
| 1030 | }
|
|---|
| 1031 | Assert(pPatchRec->patch.Patch2GuestAddrTree);
|
|---|
| 1032 | }
|
|---|
| 1033 |
|
|---|
| 1034 | if (pPatchRec->patch.flags & PATMFL_CODE_MONITORED)
|
|---|
| 1035 | {
|
|---|
| 1036 | /* Insert the guest page lookup records (for detection self-modifying code) */
|
|---|
| 1037 | rc = patmInsertPatchPages(pVM, &pPatchRec->patch);
|
|---|
| 1038 | AssertRCReturn(rc, rc);
|
|---|
| 1039 | }
|
|---|
| 1040 |
|
|---|
| 1041 | #if 0 /* can fail def LOG_ENABLED */
|
|---|
| 1042 | if ( pPatchRec->patch.uState != PATCH_REFUSED
|
|---|
| 1043 | && !(pPatchRec->patch.flags & PATMFL_INT3_REPLACEMENT))
|
|---|
| 1044 | {
|
|---|
| 1045 | pPatchRec->patch.pTempInfo = (PPATCHINFOTEMP)MMR3HeapAllocZ(pVM, MM_TAG_PATM_PATCH, sizeof(PATCHINFOTEMP));
|
|---|
| 1046 | Log(("Patch code ----------------------------------------------------------\n"));
|
|---|
| 1047 | patmr3DisasmCodeStream(pVM, PATCHCODE_PTR_GC(&pPatchRec->patch), PATCHCODE_PTR_GC(&pPatchRec->patch), patmr3DisasmCallback, &pPatchRec->patch);
|
|---|
| 1048 | Log(("Patch code ends -----------------------------------------------------\n"));
|
|---|
| 1049 | MMR3HeapFree(pPatchRec->patch.pTempInfo);
|
|---|
| 1050 | pPatchRec->patch.pTempInfo = NULL;
|
|---|
| 1051 | }
|
|---|
| 1052 | #endif
|
|---|
| 1053 | /* Remove the patch in case the gc mapping is not present. */
|
|---|
| 1054 | if ( !pPrivInstrHC
|
|---|
| 1055 | && pPatchRec->patch.uState == PATCH_ENABLED)
|
|---|
| 1056 | {
|
|---|
| 1057 | Log(("Remove patch %RGv due to failed HC address translation\n", pPatchRec->patch.pPrivInstrGC));
|
|---|
| 1058 | PATMR3RemovePatch(pVM, pPatchRec->patch.pPrivInstrGC);
|
|---|
| 1059 | }
|
|---|
| 1060 | }
|
|---|
| 1061 |
|
|---|
| 1062 | /*
|
|---|
| 1063 | * Correct absolute fixups in the global patch. (helper functions)
|
|---|
| 1064 | * Bit of a mess. Uses the new patch record, but restored patch functions.
|
|---|
| 1065 | */
|
|---|
| 1066 | PRELOCREC pRec = 0;
|
|---|
| 1067 | AVLPVKEY key = 0;
|
|---|
| 1068 |
|
|---|
| 1069 | Log(("Correct fixups in global helper functions\n"));
|
|---|
| 1070 | while (true)
|
|---|
| 1071 | {
|
|---|
| 1072 | int32_t offset;
|
|---|
| 1073 | RTRCPTR *pFixup;
|
|---|
| 1074 |
|
|---|
| 1075 | /* Get the record that's closest from above */
|
|---|
| 1076 | pRec = (PRELOCREC)RTAvlPVGetBestFit(&pVM->patm.s.pGlobalPatchRec->patch.FixupTree, key, true);
|
|---|
| 1077 | if (pRec == 0)
|
|---|
| 1078 | break;
|
|---|
| 1079 |
|
|---|
| 1080 | key = (AVLPVKEY)(pRec->pRelocPos + 1); /* search for the next record during the next round. */
|
|---|
| 1081 |
|
|---|
| 1082 | /* rec.pRelocPos now contains the relative position inside the hypervisor area. */
|
|---|
| 1083 | offset = (int32_t)(pRec->pRelocPos - pVM->patm.s.pPatchMemHC);
|
|---|
| 1084 | pFixup = (RTRCPTR *)pRec->pRelocPos;
|
|---|
| 1085 |
|
|---|
| 1086 | /* Correct fixups that refer to PATM structures in the hypervisor region (their addresses might have changed). */
|
|---|
| 1087 | patmCorrectFixup(pVM, uVersion, patmInfo, &pVM->patm.s.pGlobalPatchRec->patch, pRec, offset, pFixup);
|
|---|
| 1088 | }
|
|---|
| 1089 |
|
|---|
| 1090 | #ifdef VBOX_WITH_STATISTICS
|
|---|
| 1091 | /*
|
|---|
| 1092 | * Restore relevant old statistics
|
|---|
| 1093 | */
|
|---|
| 1094 | pVM->patm.s.StatDisabled = patmInfo.StatDisabled;
|
|---|
| 1095 | pVM->patm.s.StatUnusable = patmInfo.StatUnusable;
|
|---|
| 1096 | pVM->patm.s.StatEnabled = patmInfo.StatEnabled;
|
|---|
| 1097 | pVM->patm.s.StatInstalled = patmInfo.StatInstalled;
|
|---|
| 1098 | #endif
|
|---|
| 1099 |
|
|---|
| 1100 | return VINF_SUCCESS;
|
|---|
| 1101 | }
|
|---|
| 1102 |
|
|---|
| 1103 | /**
|
|---|
| 1104 | * Correct fixups to predefined hypervisor PATM regions. (their addresses might have changed)
|
|---|
| 1105 | *
|
|---|
| 1106 | * @returns VBox status code.
|
|---|
| 1107 | * @param pVM Pointer to the VM.
|
|---|
| 1108 | * @param ulSSMVersion SSM version
|
|---|
| 1109 | * @param patmInfo Saved PATM structure
|
|---|
| 1110 | * @param pPatch Patch record
|
|---|
| 1111 | * @param pRec Relocation record
|
|---|
| 1112 | * @param offset Offset of referenced data/code
|
|---|
| 1113 | * @param pFixup Fixup address
|
|---|
| 1114 | */
|
|---|
| 1115 | static void patmCorrectFixup(PVM pVM, unsigned ulSSMVersion, PATM &patmInfo, PPATCHINFO pPatch, PRELOCREC pRec, int32_t offset, RTRCPTR *pFixup)
|
|---|
| 1116 | {
|
|---|
| 1117 | int32_t delta = pVM->patm.s.pPatchMemGC - patmInfo.pPatchMemGC;
|
|---|
| 1118 |
|
|---|
| 1119 | switch (pRec->uType)
|
|---|
| 1120 | {
|
|---|
| 1121 | case FIXUP_ABSOLUTE:
|
|---|
| 1122 | {
|
|---|
| 1123 | if (pRec->pSource && !PATMIsPatchGCAddr(pVM, (RTRCUINTPTR)pRec->pSource))
|
|---|
| 1124 | break;
|
|---|
| 1125 |
|
|---|
| 1126 | if ( *pFixup >= patmInfo.pGCStateGC
|
|---|
| 1127 | && *pFixup < patmInfo.pGCStateGC + sizeof(PATMGCSTATE))
|
|---|
| 1128 | {
|
|---|
| 1129 | LogFlow(("Changing absolute GCState at %RRv from %RRv to %RRv\n", patmInfo.pPatchMemGC + offset, *pFixup, (*pFixup - patmInfo.pGCStateGC) + pVM->patm.s.pGCStateGC));
|
|---|
| 1130 | *pFixup = (*pFixup - patmInfo.pGCStateGC) + pVM->patm.s.pGCStateGC;
|
|---|
| 1131 | }
|
|---|
| 1132 | else
|
|---|
| 1133 | if ( *pFixup >= patmInfo.pCPUMCtxGC
|
|---|
| 1134 | && *pFixup < patmInfo.pCPUMCtxGC + sizeof(CPUMCTX))
|
|---|
| 1135 | {
|
|---|
| 1136 | LogFlow(("Changing absolute CPUMCTX at %RRv from %RRv to %RRv\n", patmInfo.pPatchMemGC + offset, *pFixup, (*pFixup - patmInfo.pCPUMCtxGC) + pVM->patm.s.pCPUMCtxGC));
|
|---|
| 1137 |
|
|---|
| 1138 | /* The CPUMCTX structure has completely changed, so correct the offsets too. */
|
|---|
| 1139 | if (ulSSMVersion == PATM_SSM_VERSION_VER16)
|
|---|
| 1140 | {
|
|---|
| 1141 | unsigned uCPUMOffset = *pFixup - patmInfo.pCPUMCtxGC;
|
|---|
| 1142 |
|
|---|
| 1143 | /* ''case RT_OFFSETOF()'' does not work as gcc refuses to use & as a constant expression.
|
|---|
| 1144 | * Defining RT_OFFSETOF as __builtin_offsetof for gcc would make this possible. But this
|
|---|
| 1145 | * function is not available in older gcc versions, at least not in gcc-3.3 */
|
|---|
| 1146 | if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr0))
|
|---|
| 1147 | {
|
|---|
| 1148 | LogFlow(("Changing dr[0] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[0])));
|
|---|
| 1149 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[0]);
|
|---|
| 1150 | }
|
|---|
| 1151 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr1))
|
|---|
| 1152 | {
|
|---|
| 1153 | LogFlow(("Changing dr[1] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[1])));
|
|---|
| 1154 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[1]);
|
|---|
| 1155 | }
|
|---|
| 1156 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr2))
|
|---|
| 1157 | {
|
|---|
| 1158 | LogFlow(("Changing dr[2] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[2])));
|
|---|
| 1159 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[2]);
|
|---|
| 1160 | }
|
|---|
| 1161 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr3))
|
|---|
| 1162 | {
|
|---|
| 1163 | LogFlow(("Changing dr[3] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[3])));
|
|---|
| 1164 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[3]);
|
|---|
| 1165 | }
|
|---|
| 1166 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr4))
|
|---|
| 1167 | {
|
|---|
| 1168 | LogFlow(("Changing dr[4] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[4])));
|
|---|
| 1169 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[4]);
|
|---|
| 1170 | }
|
|---|
| 1171 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr5))
|
|---|
| 1172 | {
|
|---|
| 1173 | LogFlow(("Changing dr[5] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[5])));
|
|---|
| 1174 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[5]);
|
|---|
| 1175 | }
|
|---|
| 1176 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr6))
|
|---|
| 1177 | {
|
|---|
| 1178 | LogFlow(("Changing dr[6] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[6])));
|
|---|
| 1179 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[6]);
|
|---|
| 1180 | }
|
|---|
| 1181 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, dr7))
|
|---|
| 1182 | {
|
|---|
| 1183 | LogFlow(("Changing dr[7] offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, dr[7])));
|
|---|
| 1184 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, dr[7]);
|
|---|
| 1185 | }
|
|---|
| 1186 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, cr0))
|
|---|
| 1187 | {
|
|---|
| 1188 | LogFlow(("Changing cr0 offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, cr0)));
|
|---|
| 1189 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, cr0);
|
|---|
| 1190 | }
|
|---|
| 1191 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, cr2))
|
|---|
| 1192 | {
|
|---|
| 1193 | LogFlow(("Changing cr2 offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, cr2)));
|
|---|
| 1194 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, cr2);
|
|---|
| 1195 | }
|
|---|
| 1196 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, cr3))
|
|---|
| 1197 | {
|
|---|
| 1198 | LogFlow(("Changing cr3 offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, cr3)));
|
|---|
| 1199 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, cr3);
|
|---|
| 1200 | }
|
|---|
| 1201 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, cr4))
|
|---|
| 1202 | {
|
|---|
| 1203 | LogFlow(("Changing cr4 offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, cr4)));
|
|---|
| 1204 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, cr4);
|
|---|
| 1205 | }
|
|---|
| 1206 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, tr))
|
|---|
| 1207 | {
|
|---|
| 1208 | LogFlow(("Changing tr offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, tr)));
|
|---|
| 1209 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, tr);
|
|---|
| 1210 | }
|
|---|
| 1211 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, ldtr))
|
|---|
| 1212 | {
|
|---|
| 1213 | LogFlow(("Changing ldtr offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, ldtr)));
|
|---|
| 1214 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, ldtr);
|
|---|
| 1215 | }
|
|---|
| 1216 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, gdtr.pGdt))
|
|---|
| 1217 | {
|
|---|
| 1218 | LogFlow(("Changing pGdt offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, gdtr.pGdt)));
|
|---|
| 1219 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, gdtr.pGdt);
|
|---|
| 1220 | }
|
|---|
| 1221 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, gdtr.cbGdt))
|
|---|
| 1222 | {
|
|---|
| 1223 | LogFlow(("Changing cbGdt offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, gdtr.cbGdt)));
|
|---|
| 1224 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, gdtr.cbGdt);
|
|---|
| 1225 | }
|
|---|
| 1226 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, idtr.pIdt))
|
|---|
| 1227 | {
|
|---|
| 1228 | LogFlow(("Changing pIdt offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, idtr.pIdt)));
|
|---|
| 1229 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, idtr.pIdt);
|
|---|
| 1230 | }
|
|---|
| 1231 | else if (uCPUMOffset == (unsigned)RT_OFFSETOF(CPUMCTX_VER1_6, idtr.cbIdt))
|
|---|
| 1232 | {
|
|---|
| 1233 | LogFlow(("Changing cbIdt offset from %x to %x\n", uCPUMOffset, RT_OFFSETOF(CPUMCTX, idtr.cbIdt)));
|
|---|
| 1234 | *pFixup = pVM->patm.s.pCPUMCtxGC + RT_OFFSETOF(CPUMCTX, idtr.cbIdt);
|
|---|
| 1235 | }
|
|---|
| 1236 | else
|
|---|
| 1237 | AssertMsgFailed(("Unexpected CPUMCTX offset %x\n", uCPUMOffset));
|
|---|
| 1238 | }
|
|---|
| 1239 | else
|
|---|
| 1240 | *pFixup = (*pFixup - patmInfo.pCPUMCtxGC) + pVM->patm.s.pCPUMCtxGC;
|
|---|
| 1241 | }
|
|---|
| 1242 | else
|
|---|
| 1243 | if ( *pFixup >= patmInfo.pStatsGC
|
|---|
| 1244 | && *pFixup < patmInfo.pStatsGC + PATM_STAT_MEMSIZE)
|
|---|
| 1245 | {
|
|---|
| 1246 | LogFlow(("Changing absolute Stats at %RRv from %RRv to %RRv\n", patmInfo.pPatchMemGC + offset, *pFixup, (*pFixup - patmInfo.pStatsGC) + pVM->patm.s.pStatsGC));
|
|---|
| 1247 | *pFixup = (*pFixup - patmInfo.pStatsGC) + pVM->patm.s.pStatsGC;
|
|---|
| 1248 | }
|
|---|
| 1249 | else
|
|---|
| 1250 | if ( *pFixup >= patmInfo.pGCStackGC
|
|---|
| 1251 | && *pFixup < patmInfo.pGCStackGC + PATM_STACK_TOTAL_SIZE)
|
|---|
| 1252 | {
|
|---|
| 1253 | LogFlow(("Changing absolute Stack at %RRv from %RRv to %RRv\n", patmInfo.pPatchMemGC + offset, *pFixup, (*pFixup - patmInfo.pGCStackGC) + pVM->patm.s.pGCStackGC));
|
|---|
| 1254 | *pFixup = (*pFixup - patmInfo.pGCStackGC) + pVM->patm.s.pGCStackGC;
|
|---|
| 1255 | }
|
|---|
| 1256 | else
|
|---|
| 1257 | if ( *pFixup >= patmInfo.pPatchMemGC
|
|---|
| 1258 | && *pFixup < patmInfo.pPatchMemGC + patmInfo.cbPatchMem)
|
|---|
| 1259 | {
|
|---|
| 1260 | LogFlow(("Changing absolute PatchMem at %RRv from %RRv to %RRv\n", patmInfo.pPatchMemGC + offset, *pFixup, (*pFixup - patmInfo.pPatchMemGC) + pVM->patm.s.pPatchMemGC));
|
|---|
| 1261 | *pFixup = (*pFixup - patmInfo.pPatchMemGC) + pVM->patm.s.pPatchMemGC;
|
|---|
| 1262 | }
|
|---|
| 1263 | else
|
|---|
| 1264 | /* Boldly ASSUMES:
|
|---|
| 1265 | * 1. That pCPUMCtxGC is in the VM structure and that its location is
|
|---|
| 1266 | * at the first page of the same 4 MB chunk.
|
|---|
| 1267 | * 2. That the forced actions were in the first 32 bytes of the VM
|
|---|
| 1268 | * structure.
|
|---|
| 1269 | * 3. That the CPUM leafs are less than 8KB into the structure. */
|
|---|
| 1270 | if ( ulSSMVersion <= PATM_SSM_VERSION_FIXUP_HACK
|
|---|
| 1271 | && *pFixup - (patmInfo.pCPUMCtxGC & UINT32_C(0xffc00000)) < UINT32_C(32))
|
|---|
| 1272 | {
|
|---|
| 1273 | LogFlow(("Changing fLocalForcedActions fixup from %RRv to %RRv\n", *pFixup, pVM->pVMRC + RT_OFFSETOF(VM, aCpus[0].fLocalForcedActions)));
|
|---|
| 1274 | *pFixup = pVM->pVMRC + RT_OFFSETOF(VM, aCpus[0].fLocalForcedActions);
|
|---|
| 1275 | }
|
|---|
| 1276 | else
|
|---|
| 1277 | if ( ulSSMVersion <= PATM_SSM_VERSION_FIXUP_HACK
|
|---|
| 1278 | && *pFixup - (patmInfo.pCPUMCtxGC & UINT32_C(0xffc00000)) < UINT32_C(8192))
|
|---|
| 1279 | {
|
|---|
| 1280 | static int cCpuidFixup = 0;
|
|---|
| 1281 | #ifdef LOG_ENABLED
|
|---|
| 1282 | RTRCPTR oldFixup = *pFixup;
|
|---|
| 1283 | #endif
|
|---|
| 1284 | /* very dirty assumptions about the cpuid patch and cpuid ordering. */
|
|---|
| 1285 | switch(cCpuidFixup & 3)
|
|---|
| 1286 | {
|
|---|
| 1287 | case 0:
|
|---|
| 1288 | *pFixup = CPUMR3GetGuestCpuIdDefRCPtr(pVM);
|
|---|
| 1289 | break;
|
|---|
| 1290 | case 1:
|
|---|
| 1291 | *pFixup = CPUMR3GetGuestCpuIdStdRCPtr(pVM);
|
|---|
| 1292 | break;
|
|---|
| 1293 | case 2:
|
|---|
| 1294 | *pFixup = CPUMR3GetGuestCpuIdExtRCPtr(pVM);
|
|---|
| 1295 | break;
|
|---|
| 1296 | case 3:
|
|---|
| 1297 | *pFixup = CPUMR3GetGuestCpuIdCentaurRCPtr(pVM);
|
|---|
| 1298 | break;
|
|---|
| 1299 | }
|
|---|
| 1300 | LogFlow(("Changing cpuid fixup %d from %RRv to %RRv\n", cCpuidFixup, oldFixup, *pFixup));
|
|---|
| 1301 | cCpuidFixup++;
|
|---|
| 1302 | }
|
|---|
| 1303 | else
|
|---|
| 1304 | if (ulSSMVersion >= PATM_SSM_VERSION_MEM)
|
|---|
| 1305 | {
|
|---|
| 1306 | #ifdef LOG_ENABLED
|
|---|
| 1307 | RTRCPTR oldFixup = *pFixup;
|
|---|
| 1308 | #endif
|
|---|
| 1309 | /* Core.Key abused to store the type of fixup */
|
|---|
| 1310 | switch ((uintptr_t)pRec->Core.Key)
|
|---|
| 1311 | {
|
|---|
| 1312 | case PATM_FIXUP_CPU_FF_ACTION:
|
|---|
| 1313 | *pFixup = pVM->pVMRC + RT_OFFSETOF(VM, aCpus[0].fLocalForcedActions);
|
|---|
| 1314 | LogFlow(("Changing cpu ff action fixup from %x to %x\n", oldFixup, *pFixup));
|
|---|
| 1315 | break;
|
|---|
| 1316 | case PATM_FIXUP_CPUID_DEFAULT:
|
|---|
| 1317 | *pFixup = CPUMR3GetGuestCpuIdDefRCPtr(pVM);
|
|---|
| 1318 | LogFlow(("Changing cpuid def fixup from %x to %x\n", oldFixup, *pFixup));
|
|---|
| 1319 | break;
|
|---|
| 1320 | case PATM_FIXUP_CPUID_STANDARD:
|
|---|
| 1321 | *pFixup = CPUMR3GetGuestCpuIdStdRCPtr(pVM);
|
|---|
| 1322 | LogFlow(("Changing cpuid std fixup from %x to %x\n", oldFixup, *pFixup));
|
|---|
| 1323 | break;
|
|---|
| 1324 | case PATM_FIXUP_CPUID_EXTENDED:
|
|---|
| 1325 | *pFixup = CPUMR3GetGuestCpuIdExtRCPtr(pVM);
|
|---|
| 1326 | LogFlow(("Changing cpuid ext fixup from %x to %x\n", oldFixup, *pFixup));
|
|---|
| 1327 | break;
|
|---|
| 1328 | case PATM_FIXUP_CPUID_CENTAUR:
|
|---|
| 1329 | *pFixup = CPUMR3GetGuestCpuIdCentaurRCPtr(pVM);
|
|---|
| 1330 | LogFlow(("Changing cpuid centaur fixup from %x to %x\n", oldFixup, *pFixup));
|
|---|
| 1331 | break;
|
|---|
| 1332 | default:
|
|---|
| 1333 | AssertMsgFailed(("Unexpected fixup value %x\n", *pFixup));
|
|---|
| 1334 | break;
|
|---|
| 1335 | }
|
|---|
| 1336 | }
|
|---|
| 1337 |
|
|---|
| 1338 | #ifdef RT_OS_WINDOWS
|
|---|
| 1339 | AssertCompile(RT_OFFSETOF(VM, fGlobalForcedActions) < 32);
|
|---|
| 1340 | #endif
|
|---|
| 1341 | break;
|
|---|
| 1342 | }
|
|---|
| 1343 |
|
|---|
| 1344 | case FIXUP_REL_JMPTOPATCH:
|
|---|
| 1345 | {
|
|---|
| 1346 | RTRCPTR pTarget = (RTRCPTR)((RTRCINTPTR)pRec->pDest + delta);
|
|---|
| 1347 |
|
|---|
| 1348 | if ( pPatch->uState == PATCH_ENABLED
|
|---|
| 1349 | && (pPatch->flags & PATMFL_PATCHED_GUEST_CODE))
|
|---|
| 1350 | {
|
|---|
| 1351 | uint8_t oldJump[SIZEOF_NEAR_COND_JUMP32];
|
|---|
| 1352 | uint8_t temp[SIZEOF_NEAR_COND_JUMP32];
|
|---|
| 1353 | RTRCPTR pJumpOffGC;
|
|---|
| 1354 | RTRCINTPTR displ = (RTRCINTPTR)pTarget - (RTRCINTPTR)pRec->pSource;
|
|---|
| 1355 | RTRCINTPTR displOld= (RTRCINTPTR)pRec->pDest - (RTRCINTPTR)pRec->pSource;
|
|---|
| 1356 |
|
|---|
| 1357 | Log(("Relative fixup (g2p) %08X -> %08X at %08X (source=%08x, target=%08x)\n", *(int32_t*)pRec->pRelocPos, displ, pRec->pRelocPos, pRec->pSource, pRec->pDest));
|
|---|
| 1358 |
|
|---|
| 1359 | Assert(pRec->pSource - pPatch->cbPatchJump == pPatch->pPrivInstrGC);
|
|---|
| 1360 | #ifdef PATM_RESOLVE_CONFLICTS_WITH_JUMP_PATCHES
|
|---|
| 1361 | if (pPatch->cbPatchJump == SIZEOF_NEAR_COND_JUMP32)
|
|---|
| 1362 | {
|
|---|
| 1363 | Assert(pPatch->flags & PATMFL_JUMP_CONFLICT);
|
|---|
| 1364 |
|
|---|
| 1365 | pJumpOffGC = pPatch->pPrivInstrGC + 2; //two byte opcode
|
|---|
| 1366 | oldJump[0] = pPatch->aPrivInstr[0];
|
|---|
| 1367 | oldJump[1] = pPatch->aPrivInstr[1];
|
|---|
| 1368 | *(RTRCUINTPTR *)&oldJump[2] = displOld;
|
|---|
| 1369 | }
|
|---|
| 1370 | else
|
|---|
| 1371 | #endif
|
|---|
| 1372 | if (pPatch->cbPatchJump == SIZEOF_NEARJUMP32)
|
|---|
| 1373 | {
|
|---|
| 1374 | pJumpOffGC = pPatch->pPrivInstrGC + 1; //one byte opcode
|
|---|
| 1375 | oldJump[0] = 0xE9;
|
|---|
| 1376 | *(RTRCUINTPTR *)&oldJump[1] = displOld;
|
|---|
| 1377 | }
|
|---|
| 1378 | else
|
|---|
| 1379 | {
|
|---|
| 1380 | AssertMsgFailed(("Invalid patch jump size %d\n", pPatch->cbPatchJump));
|
|---|
| 1381 | break;
|
|---|
| 1382 | }
|
|---|
| 1383 | Assert(pPatch->cbPatchJump <= sizeof(temp));
|
|---|
| 1384 |
|
|---|
| 1385 | /*
|
|---|
| 1386 | * Read old patch jump and compare it to the one we previously installed
|
|---|
| 1387 | */
|
|---|
| 1388 | int rc = PGMPhysSimpleReadGCPtr(VMMGetCpu0(pVM), temp, pPatch->pPrivInstrGC, pPatch->cbPatchJump);
|
|---|
| 1389 | Assert(RT_SUCCESS(rc) || rc == VERR_PAGE_NOT_PRESENT || rc == VERR_PAGE_TABLE_NOT_PRESENT);
|
|---|
| 1390 |
|
|---|
| 1391 | if (rc == VERR_PAGE_NOT_PRESENT || rc == VERR_PAGE_TABLE_NOT_PRESENT)
|
|---|
| 1392 | {
|
|---|
| 1393 | RTRCPTR pPage = pPatch->pPrivInstrGC & PAGE_BASE_GC_MASK;
|
|---|
| 1394 |
|
|---|
| 1395 | rc = PGMR3HandlerVirtualRegister(pVM, PGMVIRTHANDLERTYPE_ALL, pPage, pPage + (PAGE_SIZE - 1) /* inclusive! */, 0, patmVirtPageHandler, "PATMGCMonitorPage", 0, "PATMMonitorPatchJump");
|
|---|
| 1396 | Assert(RT_SUCCESS(rc) || rc == VERR_PGM_HANDLER_VIRTUAL_CONFLICT);
|
|---|
| 1397 | }
|
|---|
| 1398 | else
|
|---|
| 1399 | if (memcmp(temp, oldJump, pPatch->cbPatchJump))
|
|---|
| 1400 | {
|
|---|
| 1401 | Log(("PATM: Patch jump was overwritten -> disabling patch!!\n"));
|
|---|
| 1402 | /*
|
|---|
| 1403 | * Disable patch; this is not a good solution
|
|---|
| 1404 | */
|
|---|
| 1405 | /* @todo hopefully it was completely overwritten (if the read was successful)!!!! */
|
|---|
| 1406 | pPatch->uState = PATCH_DISABLED;
|
|---|
| 1407 | }
|
|---|
| 1408 | else
|
|---|
| 1409 | if (RT_SUCCESS(rc))
|
|---|
| 1410 | {
|
|---|
| 1411 | rc = PGMPhysSimpleDirtyWriteGCPtr(VMMGetCpu0(pVM), pJumpOffGC, &displ, sizeof(displ));
|
|---|
| 1412 | AssertRC(rc);
|
|---|
| 1413 | }
|
|---|
| 1414 | else
|
|---|
| 1415 | AssertMsgFailed(("Unexpected error %d from MMR3PhysReadGCVirt\n", rc));
|
|---|
| 1416 | }
|
|---|
| 1417 | else
|
|---|
| 1418 | Log(("Skip the guest jump to patch code for this disabled patch %08X\n", pRec->pRelocPos));
|
|---|
| 1419 |
|
|---|
| 1420 | pRec->pDest = pTarget;
|
|---|
| 1421 | break;
|
|---|
| 1422 | }
|
|---|
| 1423 |
|
|---|
| 1424 | case FIXUP_REL_JMPTOGUEST:
|
|---|
| 1425 | {
|
|---|
| 1426 | RTRCPTR pSource = (RTRCPTR)((RTRCINTPTR)pRec->pSource + delta);
|
|---|
| 1427 | RTRCINTPTR displ = (RTRCINTPTR)pRec->pDest - (RTRCINTPTR)pSource;
|
|---|
| 1428 |
|
|---|
| 1429 | Assert(!(pPatch->flags & PATMFL_GLOBAL_FUNCTIONS));
|
|---|
| 1430 | Log(("Relative fixup (p2g) %08X -> %08X at %08X (source=%08x, target=%08x)\n", *(int32_t*)pRec->pRelocPos, displ, pRec->pRelocPos, pRec->pSource, pRec->pDest));
|
|---|
| 1431 | *(RTRCUINTPTR *)pRec->pRelocPos = displ;
|
|---|
| 1432 | pRec->pSource = pSource;
|
|---|
| 1433 | break;
|
|---|
| 1434 |
|
|---|
| 1435 | }
|
|---|
| 1436 | }
|
|---|
| 1437 | }
|
|---|
| 1438 |
|
|---|
