| 1 | /** @file
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| 2 | *
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| 3 | * PATM macros & definitions (identical to PATMA.mac!!)
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006 InnoTek Systemberatung GmbH
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License as published by the Free Software Foundation,
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| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * If you received this file as part of a commercial VirtualBox
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| 18 | * distribution, then only the terms of your commercial VirtualBox
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| 19 | * license agreement apply instead of the previous paragraph.
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| 20 | */
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| 21 |
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| 22 | #ifndef __PATMA_H__
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| 23 | #define __PATMA_H__
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| 24 |
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| 25 |
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| 26 | #define PATM_VMFLAGS 0xF1ABCD00
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| 27 | #ifdef VBOX_WITH_STATISTICS
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| 28 | #define PATM_ALLPATCHCALLS 0xF1ABCD01
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| 29 | #define PATM_PERPATCHCALLS 0xF1ABCD02
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| 30 | #endif
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| 31 | #define PATM_JUMPDELTA 0xF1ABCD03
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| 32 | #ifdef VBOX_WITH_STATISTICS
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| 33 | #define PATM_IRETEFLAGS 0xF1ABCD04
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| 34 | #define PATM_IRETCS 0xF1ABCD05
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| 35 | #define PATM_IRETEIP 0xF1ABCD06
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| 36 | #endif
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| 37 | #define PATM_FIXUP 0xF1ABCD07
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| 38 | #define PATM_PENDINGACTION 0xF1ABCD08
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| 39 | #define PATM_CPUID_STD_PTR 0xF1ABCD09
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| 40 | #define PATM_CPUID_EXT_PTR 0xF1ABCD0a
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| 41 | #define PATM_CPUID_DEF_PTR 0xF1ABCD0b
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| 42 | #define PATM_STACKBASE 0xF1ABCD0c /** Stack to store our private patch return addesses */
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| 43 | #define PATM_STACKBASE_GUEST 0xF1ABCD0d /** Stack to store guest return addresses */
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| 44 | #define PATM_STACKPTR 0xF1ABCD0e
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| 45 | #define PATM_PATCHBASE 0xF1ABCD0f
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| 46 | #define PATM_INTERRUPTFLAG 0xF1ABCD10
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| 47 | #define PATM_INHIBITIRQADDR 0xF1ABCD11
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| 48 | #define PATM_VM_FORCEDACTIONS 0xF1ABCD12
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| 49 | #define PATM_TEMP_EAX 0xF1ABCD13 /** Location for original EAX register */
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| 50 | #define PATM_TEMP_ECX 0xF1ABCD14 /** Location for original ECX register */
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| 51 | #define PATM_TEMP_EDI 0xF1ABCD15 /** Location for original EDI register */
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| 52 | #define PATM_TEMP_EFLAGS 0xF1ABCD16 /** Location for original eflags */
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| 53 | #define PATM_TEMP_RESTORE_FLAGS 0xF1ABCD17 /** Which registers to restore */
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| 54 |
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| 55 | /* Anything larger doesn't require a fixup */
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| 56 | #define PATM_NO_FIXUP 0xF1ABCE00
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| 57 | #define PATM_CPUID_STD_MAX 0xF1ABCE00
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| 58 | #define PATM_CPUID_EXT_MAX 0xF1ABCE01
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| 59 | #define PATM_RETURNADDR 0xF1ABCE02
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| 60 | #define PATM_PATCHNEXTBLOCK 0xF1ABCE03
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| 61 | #define PATM_CALLTARGET 0xF1ABCE04 /** relative call target */
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| 62 | #define PATM_NEXTINSTRADDR 0xF1ABCE05 /** absolute guest address of the next instruction */
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| 63 | #define PATM_CURINSTRADDR 0xF1ABCE06 /** absolute guest address of the current instruction */
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| 64 | #define PATM_LOOKUP_AND_CALL_FUNCTION 0xF1ABCE07 /** Relative address of global PATM lookup and call function. */
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| 65 | #define PATM_RETURN_FUNCTION 0xF1ABCE08 /** Relative address of global PATM return function. */
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| 66 | #define PATM_LOOKUP_AND_JUMP_FUNCTION 0xF1ABCE09 /** Relative address of global PATM lookup and jump function. */
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| 67 |
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| 68 | // everything except IOPL, NT, IF, VM, VIF, VIP and RF
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| 69 | #define PATM_FLAGS_MASK (X86_EFL_CF|X86_EFL_PF|X86_EFL_AF|X86_EFL_ZF|X86_EFL_SF|X86_EFL_TF|X86_EFL_DF|X86_EFL_OF|X86_EFL_AC|X86_EFL_ID)
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| 70 |
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| 71 | // currently only IF & IOPL
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| 72 | #define PATM_VIRTUAL_FLAGS_MASK (X86_EFL_IF|X86_EFL_IOPL)
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| 73 |
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| 74 | /* PATM stack size (identical in PATMA.mac!!) */
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| 75 | #define PATM_STACK_SIZE (PAGE_SIZE)
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| 76 | #define PATM_STACK_TOTAL_SIZE (2*PATM_STACK_SIZE)
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| 77 | #define PATM_MAX_STACK (PATM_STACK_SIZE/sizeof(RTGCPTR))
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| 78 |
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| 79 | /* Patch Manager pending actions (in GCSTATE). */
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| 80 | #define PATM_ACTION_LOOKUP_ADDRESS 1
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| 81 | #define PATM_ACTION_DISPATCH_PENDING_IRQ 2
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| 82 | #define PATM_ACTION_LOG_IF1 3
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| 83 | #define PATM_ACTION_LOG_CLI 4
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| 84 | #define PATM_ACTION_LOG_STI 5
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| 85 | #define PATM_ACTION_LOG_POPF_IF1 6
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| 86 | #define PATM_ACTION_LOG_POPF_IF0 7
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| 87 | #define PATM_ACTION_LOG_PUSHF 8
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| 88 | #define PATM_ACTION_LOG_IRET 9
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| 89 |
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| 90 | /* Magic dword found in ecx for patm pending actions. */
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| 91 | #define PATM_ACTION_MAGIC 0xABCD4321
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| 92 |
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| 93 | /** PATM_TEMP_RESTORE_FLAGS */
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| 94 | #define PATM_RESTORE_EAX BIT(0)
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| 95 | #define PATM_RESTORE_ECX BIT(1)
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| 96 | #define PATM_RESTORE_EDI BIT(2)
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| 97 |
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| 98 | typedef struct
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| 99 | {
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| 100 | uint8_t *pFunction;
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| 101 | uint32_t offJump;
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| 102 | uint32_t offRelJump; //used only by loop/loopz/loopnz
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| 103 | uint32_t offSizeOverride; //size override byte position
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| 104 | uint32_t size;
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| 105 | uint32_t nrRelocs;
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| 106 | uint32_t uReloc[1];
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| 107 | } PATCHASMRECORD, *PPATCHASMRECORD;
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| 108 |
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| 109 | /* For indirect calls/jump (identical in PATMA.h & PATMA.mac!) */
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| 110 | /** @note MUST BE A POWER OF TWO! */
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| 111 | /** @note direct calls have only one lookup slot (PATCHDIRECTJUMPTABLE_SIZE) */
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| 112 | /** @note Some statistics reveal that:
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| 113 | * - call: Windows XP boot -> max 16, 127 replacements
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| 114 | * - call: Knoppix 3.7 boot -> max 9
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| 115 | * - ret: Knoppix 5.0.1 boot -> max 16, 80000 replacements (3+ million hits)
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| 116 | */
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| 117 | #define PATM_MAX_JUMPTABLE_ENTRIES 16
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| 118 | typedef struct
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| 119 | {
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| 120 | uint16_t nrSlots;
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| 121 | uint16_t ulInsertPos;
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| 122 | uint32_t cAddresses;
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| 123 | struct
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| 124 | {
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| 125 | RTGCPTR pInstrGC;
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| 126 | RTGCUINTPTR pRelPatchGC; /* relative to patch base */
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| 127 | } Slot[1];
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| 128 | } PATCHJUMPTABLE, *PPATCHJUMPTABLE;
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| 129 |
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| 130 |
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| 131 | #ifdef __cplusplus
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| 132 | extern "C"
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| 133 | {
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| 134 | #endif
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| 135 |
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| 136 | extern PATCHASMRECORD PATMCliRecord;
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| 137 | extern PATCHASMRECORD PATMStiRecord;
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| 138 | extern PATCHASMRECORD PATMPopf32Record;
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| 139 | extern PATCHASMRECORD PATMPopf16Record;
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| 140 | extern PATCHASMRECORD PATMPopf16Record_NoExit;
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| 141 | extern PATCHASMRECORD PATMPopf32Record_NoExit;
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| 142 | extern PATCHASMRECORD PATMPushf32Record;
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| 143 | extern PATCHASMRECORD PATMPushf16Record;
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| 144 | extern PATCHASMRECORD PATMIretRecord;
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| 145 | extern PATCHASMRECORD PATMCpuidRecord;
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| 146 | extern PATCHASMRECORD PATMLoopRecord;
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| 147 | extern PATCHASMRECORD PATMLoopZRecord;
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| 148 | extern PATCHASMRECORD PATMLoopNZRecord;
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| 149 | extern PATCHASMRECORD PATMJEcxRecord;
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| 150 | extern PATCHASMRECORD PATMIntEntryRecord;
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| 151 | extern PATCHASMRECORD PATMIntEntryRecordErrorCode;
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| 152 | extern PATCHASMRECORD PATMTrapEntryRecord;
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| 153 | extern PATCHASMRECORD PATMTrapEntryRecordErrorCode;
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| 154 | extern PATCHASMRECORD PATMPushCSRecord;
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| 155 |
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| 156 | extern PATCHASMRECORD PATMCheckIFRecord;
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| 157 | extern PATCHASMRECORD PATMJumpToGuest_IF1Record;
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| 158 |
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| 159 | extern PATCHASMRECORD PATMCallRecord;
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| 160 | extern PATCHASMRECORD PATMCallIndirectRecord;
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| 161 | extern PATCHASMRECORD PATMRetRecord;
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| 162 | extern PATCHASMRECORD PATMJumpIndirectRecord;
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| 163 |
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| 164 | extern PATCHASMRECORD PATMLookupAndCallRecord;
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| 165 | extern PATCHASMRECORD PATMRetFunctionRecord;
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| 166 | extern PATCHASMRECORD PATMLookupAndJumpRecord;
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| 167 |
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| 168 | extern PATCHASMRECORD PATMStatsRecord;
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| 169 |
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| 170 | extern PATCHASMRECORD PATMSetPIFRecord;
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| 171 | extern PATCHASMRECORD PATMClearPIFRecord;
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| 172 |
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| 173 | extern PATCHASMRECORD PATMSetInhibitIRQRecord;
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| 174 | extern PATCHASMRECORD PATMClearInhibitIRQFaultIF0Record;
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| 175 | extern PATCHASMRECORD PATMClearInhibitIRQContIF0Record;
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| 176 |
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| 177 | extern uint32_t PATMInterruptFlag;
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| 178 | #ifdef __cplusplus
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| 179 | }
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| 180 | #endif
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| 181 |
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| 182 | #endif //__PATMA_H__
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