| 1 | /* $Id: VMMSwitcher.h 76553 2019-01-01 01:45:53Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VMM - World Switchers.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2019 Oracle Corporation
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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 (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | */
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| 17 |
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| 18 | #ifndef ___VMMSwitcher_h
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| 19 | #define ___VMMSwitcher_h
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| 20 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 21 | # pragma once
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| 22 | #endif
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| 23 |
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| 24 | #include <VBox/vmm/vmm.h>
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| 25 |
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| 26 | /** @name Fixup Types.
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| 27 | * @{
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| 28 | */
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| 29 | /** @todo document what arguments these take and what they do. */
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| 30 | #define FIX_HC_2_GC_NEAR_REL 1
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| 31 | #define FIX_HC_2_ID_NEAR_REL 2
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| 32 | #define FIX_GC_2_HC_NEAR_REL 3
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| 33 | #define FIX_GC_2_ID_NEAR_REL 4
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| 34 | #define FIX_ID_2_HC_NEAR_REL 5
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| 35 | #define FIX_ID_2_GC_NEAR_REL 6
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| 36 | #define FIX_GC_FAR32 7
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| 37 | #define FIX_GC_CPUM_OFF 8
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| 38 | #define FIX_GC_VM_OFF 9 /** @todo cleanup fixup names GC->RC, HC->R0. */
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| 39 | #define FIX_HC_CPUM_OFF 10
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| 40 | #define FIX_HC_VM_OFF 11
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| 41 | #define FIX_INTER_32BIT_CR3 12
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| 42 | #define FIX_INTER_PAE_CR3 13
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| 43 | #define FIX_INTER_AMD64_CR3 14
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| 44 | #define FIX_HYPER_CS 18
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| 45 | #define FIX_HYPER_DS 19
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| 46 | #define FIX_HYPER_TSS 20
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| 47 | #define FIX_GC_TSS_GDTE_DW2 21
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| 48 | /*#define FIX_NO_FXSAVE_JMP 24 - reusable */
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| 49 | #define FIX_NO_SYSENTER_JMP 25
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| 50 | #define FIX_NO_SYSCALL_JMP 26
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| 51 | #define FIX_HC_32BIT 27
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| 52 | #define FIX_HC_64BIT 28
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| 53 | #define FIX_HC_64BIT_CPUM 29
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| 54 | #define FIX_HC_64BIT_CS 30
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| 55 | #define FIX_ID_32BIT 31
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| 56 | #define FIX_ID_64BIT 32
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| 57 | #define FIX_ID_FAR32_TO_64BIT_MODE 33
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| 58 | #define FIX_GC_APIC_BASE_32BIT 34
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| 59 | #define FIX_HC_64BIT_NOCHECK 35
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| 60 | #define FIX_GC_64_BIT_CPUM_OFF 36
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| 61 | #define FIX_GC_CPUMCPU_OFF 37
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| 62 | #define FIX_EFER_OR_MASK 38
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| 63 | #define FIX_THE_END 255
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| 64 | /** @} */
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| 65 |
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| 66 |
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| 67 | /** Pointer to a switcher definition. */
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| 68 | typedef struct VMMSWITCHERDEF *PVMMSWITCHERDEF;
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| 69 |
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| 70 | /**
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| 71 | * Callback function for relocating the core code belonging to a switcher.
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| 72 | *
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| 73 | * @param pVM The cross context VM structure.
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| 74 | * @param pSwitcher Pointer to the switcher structure.
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| 75 | * @param R0PtrCode Pointer to the first code byte in the ring-0 mapping.
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| 76 | * @param pu8CodeR3 Pointer to the first code byte in the ring-3 mapping.
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| 77 | * @param GCPtrCode The GC address of the first code byte.
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| 78 | * @param u32IDCode The address of the identity mapped code (first byte).
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| 79 | */
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| 80 | typedef DECLCALLBACK(void) FNVMMSWITCHERRELOCATE(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3,
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| 81 | RTGCPTR GCPtrCode, uint32_t u32IDCode);
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| 82 | /** Pointer to a FNVMMSWITCHERRELOCATE(). */
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| 83 | typedef FNVMMSWITCHERRELOCATE *PFNVMMSWITCHERRELOCATE;
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| 84 |
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| 85 | /**
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| 86 | * VMM Switcher structure.
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| 87 | */
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| 88 | #pragma pack(1)
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| 89 | typedef struct VMMSWITCHERDEF
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| 90 | {
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| 91 | /** Pointer to the code. */
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| 92 | void *pvCode;
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| 93 | /** Pointer to the fixup records. */
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| 94 | void *pvFixups;
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| 95 | /** Pointer to the description. */
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| 96 | const char *pszDesc;
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| 97 | /** Function which performs the necessary relocations. */
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| 98 | PFNVMMSWITCHERRELOCATE pfnRelocate;
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| 99 | /** The switcher type. */
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| 100 | VMMSWITCHER enmType;
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| 101 | /** Size of the entire code chunk. */
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| 102 | uint32_t cbCode;
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| 103 | /** vmmR0ToRawMode C entrypoint. */
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| 104 | uint32_t offR0ToRawMode;
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| 105 | /** vmmRCToHost C entrypoint. */
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| 106 | uint32_t offRCToHost;
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| 107 | /** vmmRCCallTrampoline address. */
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| 108 | uint32_t offRCCallTrampoline;
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| 109 | /** vmmRCToHostAsm - Assembly language entry point for switching from raw-mode
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| 110 | * context to host-context. This saves the RC register context. */
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| 111 | uint32_t offRCToHostAsm;
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| 112 | /** vmmRCToHostNoReturn - Assembly language entry point for switching from
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| 113 | * raw-mode context to host-context. This does not save any RC register
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| 114 | * context and expects the caller to have done that already. */
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| 115 | uint32_t offRCToHostAsmNoReturn;
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| 116 | /** @name Disassembly Regions.
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| 117 | * @{ */
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| 118 | uint32_t offHCCode0;
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| 119 | uint32_t cbHCCode0;
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| 120 | uint32_t offHCCode1;
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| 121 | uint32_t cbHCCode1;
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| 122 | uint32_t offIDCode0;
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| 123 | uint32_t cbIDCode0;
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| 124 | uint32_t offIDCode1;
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| 125 | uint32_t cbIDCode1;
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| 126 | uint32_t offGCCode;
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| 127 | uint32_t cbGCCode;
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| 128 | /** @} */
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| 129 | } VMMSWITCHERDEF;
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| 130 | #pragma pack()
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| 131 |
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| 132 | RT_C_DECLS_BEGIN
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| 133 | extern VMMSWITCHERDEF vmmR3SwitcherX86Stub_Def;
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| 134 | extern VMMSWITCHERDEF vmmR3Switcher32BitTo32Bit_Def;
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| 135 | extern VMMSWITCHERDEF vmmR3Switcher32BitToPAE_Def;
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| 136 | extern VMMSWITCHERDEF vmmR3Switcher32BitToAMD64_Def;
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| 137 | extern VMMSWITCHERDEF vmmR3SwitcherPAETo32Bit_Def;
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| 138 | extern VMMSWITCHERDEF vmmR3SwitcherPAEToPAE_Def;
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| 139 | extern VMMSWITCHERDEF vmmR3SwitcherPAEToAMD64_Def;
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| 140 | extern VMMSWITCHERDEF vmmR3SwitcherAMD64Stub_Def;
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| 141 | extern VMMSWITCHERDEF vmmR3SwitcherAMD64To32Bit_Def;
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| 142 | extern VMMSWITCHERDEF vmmR3SwitcherAMD64ToPAE_Def;
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| 143 | extern VMMSWITCHERDEF vmmR3SwitcherAMD64ToAMD64_Def;
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| 144 |
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| 145 | extern DECLCALLBACK(void) vmmR3Switcher32BitTo32Bit_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 146 | extern DECLCALLBACK(void) vmmR3Switcher32BitToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 147 | extern DECLCALLBACK(void) vmmR3Switcher32BitToAMD64_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 148 | extern DECLCALLBACK(void) vmmR3SwitcherPAETo32Bit_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 149 | extern DECLCALLBACK(void) vmmR3SwitcherPAEToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 150 | extern DECLCALLBACK(void) vmmR3SwitcherPAEToAMD64_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 151 | extern DECLCALLBACK(void) vmmR3SwitcherAMD64To32Bit_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 152 | extern DECLCALLBACK(void) vmmR3SwitcherAMD64ToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 153 | extern DECLCALLBACK(void) vmmR3SwitcherAMD64ToAMD64_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, RTR0PTR R0PtrCode, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IdCode);
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| 154 | RT_C_DECLS_END
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| 155 |
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| 156 | #endif
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