[70918] | 1 | /* $Id: NEMR3Native-win.cpp 74795 2018-10-12 11:24:11Z vboxsync $ */
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| 2 | /** @file
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| 3 | * NEM - Native execution manager, native ring-3 Windows backend.
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[71031] | 4 | *
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| 5 | * Log group 2: Exit logging.
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| 6 | * Log group 3: Log context on exit.
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[71075] | 7 | * Log group 5: Ring-3 memory management
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| 8 | * Log group 6: Ring-0 memory management
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[71040] | 9 | * Log group 12: API intercepts.
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[70918] | 10 | */
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| 11 |
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| 12 | /*
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| 13 | * Copyright (C) 2018 Oracle Corporation
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| 14 | *
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| 15 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 16 | * available from http://www.virtualbox.org. This file is free software;
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| 17 | * you can redistribute it and/or modify it under the terms of the GNU
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| 18 | * General Public License (GPL) as published by the Free Software
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| 19 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 20 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 21 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 22 | */
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| 23 |
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| 24 |
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| 25 | /*********************************************************************************************************************************
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| 26 | * Header Files *
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| 27 | *********************************************************************************************************************************/
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| 28 | #define LOG_GROUP LOG_GROUP_NEM
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[72522] | 29 | #define VMCPU_INCL_CPUM_GST_CTX
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[70977] | 30 | #include <iprt/nt/nt-and-windows.h>
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[71075] | 31 | #include <iprt/nt/hyperv.h>
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[71129] | 32 | #include <iprt/nt/vid.h>
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[70942] | 33 | #include <WinHvPlatform.h>
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| 34 |
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| 35 | #ifndef _WIN32_WINNT_WIN10
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| 36 | # error "Missing _WIN32_WINNT_WIN10"
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| 37 | #endif
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| 38 | #ifndef _WIN32_WINNT_WIN10_RS1 /* Missing define, causing trouble for us. */
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| 39 | # define _WIN32_WINNT_WIN10_RS1 (_WIN32_WINNT_WIN10 + 1)
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| 40 | #endif
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| 41 | #include <sysinfoapi.h>
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[70944] | 42 | #include <debugapi.h>
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| 43 | #include <errhandlingapi.h>
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[70942] | 44 | #include <fileapi.h>
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| 45 | #include <winerror.h> /* no api header for this. */
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| 46 |
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[70918] | 47 | #include <VBox/vmm/nem.h>
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[71031] | 48 | #include <VBox/vmm/iem.h>
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| 49 | #include <VBox/vmm/em.h>
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[71020] | 50 | #include <VBox/vmm/apic.h>
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[72207] | 51 | #include <VBox/vmm/pdm.h>
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[72687] | 52 | #include <VBox/vmm/dbgftrace.h>
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[70918] | 53 | #include "NEMInternal.h"
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| 54 | #include <VBox/vmm/vm.h>
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| 55 |
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[70942] | 56 | #include <iprt/ldr.h>
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| 57 | #include <iprt/path.h>
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| 58 | #include <iprt/string.h>
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[71296] | 59 | #include <iprt/system.h>
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[70918] | 60 |
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| 61 |
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[70942] | 62 | /*********************************************************************************************************************************
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[70977] | 63 | * Defined Constants And Macros *
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| 64 | *********************************************************************************************************************************/
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| 65 | #ifdef LOG_ENABLED
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| 66 | # define NEM_WIN_INTERCEPT_NT_IO_CTLS
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| 67 | #endif
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| 68 |
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[71131] | 69 | /** VID I/O control detection: Fake partition handle input. */
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| 70 | #define NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE ((HANDLE)(uintptr_t)38479125)
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| 71 | /** VID I/O control detection: Fake partition ID return. */
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| 72 | #define NEM_WIN_IOCTL_DETECTOR_FAKE_PARTITION_ID UINT64_C(0xfa1e000042424242)
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| 73 | /** VID I/O control detection: Fake CPU index input. */
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| 74 | #define NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX UINT32_C(42)
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| 75 | /** VID I/O control detection: Fake timeout input. */
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| 76 | #define NEM_WIN_IOCTL_DETECTOR_FAKE_TIMEOUT UINT32_C(0x00080286)
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[71040] | 77 |
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[71075] | 78 |
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[70977] | 79 | /*********************************************************************************************************************************
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[70942] | 80 | * Global Variables *
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| 81 | *********************************************************************************************************************************/
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| 82 | /** @name APIs imported from WinHvPlatform.dll
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| 83 | * @{ */
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| 84 | static decltype(WHvGetCapability) * g_pfnWHvGetCapability;
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| 85 | static decltype(WHvCreatePartition) * g_pfnWHvCreatePartition;
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| 86 | static decltype(WHvSetupPartition) * g_pfnWHvSetupPartition;
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| 87 | static decltype(WHvDeletePartition) * g_pfnWHvDeletePartition;
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| 88 | static decltype(WHvGetPartitionProperty) * g_pfnWHvGetPartitionProperty;
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| 89 | static decltype(WHvSetPartitionProperty) * g_pfnWHvSetPartitionProperty;
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| 90 | static decltype(WHvMapGpaRange) * g_pfnWHvMapGpaRange;
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| 91 | static decltype(WHvUnmapGpaRange) * g_pfnWHvUnmapGpaRange;
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| 92 | static decltype(WHvTranslateGva) * g_pfnWHvTranslateGva;
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[71129] | 93 | #ifndef NEM_WIN_USE_OUR_OWN_RUN_API
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[70942] | 94 | static decltype(WHvCreateVirtualProcessor) * g_pfnWHvCreateVirtualProcessor;
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| 95 | static decltype(WHvDeleteVirtualProcessor) * g_pfnWHvDeleteVirtualProcessor;
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| 96 | static decltype(WHvRunVirtualProcessor) * g_pfnWHvRunVirtualProcessor;
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| 97 | static decltype(WHvCancelRunVirtualProcessor) * g_pfnWHvCancelRunVirtualProcessor;
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| 98 | static decltype(WHvGetVirtualProcessorRegisters) * g_pfnWHvGetVirtualProcessorRegisters;
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| 99 | static decltype(WHvSetVirtualProcessorRegisters) * g_pfnWHvSetVirtualProcessorRegisters;
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[71129] | 100 | #endif
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[70942] | 101 | /** @} */
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| 102 |
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[71075] | 103 | /** @name APIs imported from Vid.dll
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| 104 | * @{ */
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[71129] | 105 | static decltype(VidGetHvPartitionId) *g_pfnVidGetHvPartitionId;
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| 106 | static decltype(VidStartVirtualProcessor) *g_pfnVidStartVirtualProcessor;
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| 107 | static decltype(VidStopVirtualProcessor) *g_pfnVidStopVirtualProcessor;
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| 108 | static decltype(VidMessageSlotMap) *g_pfnVidMessageSlotMap;
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| 109 | static decltype(VidMessageSlotHandleAndGetNext) *g_pfnVidMessageSlotHandleAndGetNext;
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| 110 | #ifdef LOG_ENABLED
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[71131] | 111 | static decltype(VidGetVirtualProcessorState) *g_pfnVidGetVirtualProcessorState;
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| 112 | static decltype(VidSetVirtualProcessorState) *g_pfnVidSetVirtualProcessorState;
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[71129] | 113 | static decltype(VidGetVirtualProcessorRunningStatus) *g_pfnVidGetVirtualProcessorRunningStatus;
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| 114 | #endif
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[71075] | 115 | /** @} */
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[70942] | 116 |
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[71296] | 117 | /** The Windows build number. */
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[72286] | 118 | static uint32_t g_uBuildNo = 17134;
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[71075] | 119 |
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[71296] | 120 |
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| 121 |
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[70942] | 122 | /**
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| 123 | * Import instructions.
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| 124 | */
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| 125 | static const struct
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| 126 | {
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| 127 | uint8_t idxDll; /**< 0 for WinHvPlatform.dll, 1 for vid.dll. */
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| 128 | bool fOptional; /**< Set if import is optional. */
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| 129 | PFNRT *ppfn; /**< The function pointer variable. */
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| 130 | const char *pszName; /**< The function name. */
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| 131 | } g_aImports[] =
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| 132 | {
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| 133 | #define NEM_WIN_IMPORT(a_idxDll, a_fOptional, a_Name) { (a_idxDll), (a_fOptional), (PFNRT *)&RT_CONCAT(g_pfn,a_Name), #a_Name }
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| 134 | NEM_WIN_IMPORT(0, false, WHvGetCapability),
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| 135 | NEM_WIN_IMPORT(0, false, WHvCreatePartition),
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| 136 | NEM_WIN_IMPORT(0, false, WHvSetupPartition),
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| 137 | NEM_WIN_IMPORT(0, false, WHvDeletePartition),
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| 138 | NEM_WIN_IMPORT(0, false, WHvGetPartitionProperty),
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| 139 | NEM_WIN_IMPORT(0, false, WHvSetPartitionProperty),
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| 140 | NEM_WIN_IMPORT(0, false, WHvMapGpaRange),
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| 141 | NEM_WIN_IMPORT(0, false, WHvUnmapGpaRange),
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| 142 | NEM_WIN_IMPORT(0, false, WHvTranslateGva),
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[71129] | 143 | #ifndef NEM_WIN_USE_OUR_OWN_RUN_API
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[70942] | 144 | NEM_WIN_IMPORT(0, false, WHvCreateVirtualProcessor),
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| 145 | NEM_WIN_IMPORT(0, false, WHvDeleteVirtualProcessor),
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| 146 | NEM_WIN_IMPORT(0, false, WHvRunVirtualProcessor),
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[71129] | 147 | NEM_WIN_IMPORT(0, false, WHvCancelRunVirtualProcessor),
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[70942] | 148 | NEM_WIN_IMPORT(0, false, WHvGetVirtualProcessorRegisters),
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| 149 | NEM_WIN_IMPORT(0, false, WHvSetVirtualProcessorRegisters),
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[71129] | 150 | #endif
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[71075] | 151 | NEM_WIN_IMPORT(1, false, VidGetHvPartitionId),
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[71129] | 152 | NEM_WIN_IMPORT(1, false, VidMessageSlotMap),
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| 153 | NEM_WIN_IMPORT(1, false, VidMessageSlotHandleAndGetNext),
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| 154 | NEM_WIN_IMPORT(1, false, VidStartVirtualProcessor),
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| 155 | NEM_WIN_IMPORT(1, false, VidStopVirtualProcessor),
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| 156 | #ifdef LOG_ENABLED
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[71131] | 157 | NEM_WIN_IMPORT(1, false, VidGetVirtualProcessorState),
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| 158 | NEM_WIN_IMPORT(1, false, VidSetVirtualProcessorState),
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[71129] | 159 | NEM_WIN_IMPORT(1, false, VidGetVirtualProcessorRunningStatus),
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| 160 | #endif
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[70942] | 161 | #undef NEM_WIN_IMPORT
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| 162 | };
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| 163 |
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| 164 |
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[71131] | 165 | /** The real NtDeviceIoControlFile API in NTDLL. */
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| 166 | static decltype(NtDeviceIoControlFile) *g_pfnNtDeviceIoControlFile;
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| 167 | /** Pointer to the NtDeviceIoControlFile import table entry. */
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| 168 | static decltype(NtDeviceIoControlFile) **g_ppfnVidNtDeviceIoControlFile;
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| 169 | /** Info about the VidGetHvPartitionId I/O control interface. */
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| 170 | static NEMWINIOCTL g_IoCtlGetHvPartitionId;
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| 171 | /** Info about the VidStartVirtualProcessor I/O control interface. */
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| 172 | static NEMWINIOCTL g_IoCtlStartVirtualProcessor;
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| 173 | /** Info about the VidStopVirtualProcessor I/O control interface. */
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| 174 | static NEMWINIOCTL g_IoCtlStopVirtualProcessor;
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| 175 | /** Info about the VidMessageSlotHandleAndGetNext I/O control interface. */
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| 176 | static NEMWINIOCTL g_IoCtlMessageSlotHandleAndGetNext;
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| 177 | #ifdef LOG_ENABLED
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| 178 | /** Info about the VidMessageSlotMap I/O control interface - for logging. */
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| 179 | static NEMWINIOCTL g_IoCtlMessageSlotMap;
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| 180 | /* Info about the VidGetVirtualProcessorState I/O control interface - for logging. */
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| 181 | static NEMWINIOCTL g_IoCtlGetVirtualProcessorState;
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| 182 | /* Info about the VidSetVirtualProcessorState I/O control interface - for logging. */
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| 183 | static NEMWINIOCTL g_IoCtlSetVirtualProcessorState;
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| 184 | /** Pointer to what nemR3WinIoctlDetector_ForLogging should fill in. */
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| 185 | static NEMWINIOCTL *g_pIoCtlDetectForLogging;
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| 186 | #endif
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| 187 |
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| 188 | #ifdef NEM_WIN_INTERCEPT_NT_IO_CTLS
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| 189 | /** Mapping slot for CPU #0.
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| 190 | * @{ */
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| 191 | static VID_MESSAGE_MAPPING_HEADER *g_pMsgSlotMapping = NULL;
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| 192 | static const HV_MESSAGE_HEADER *g_pHvMsgHdr;
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| 193 | static const HV_X64_INTERCEPT_MESSAGE_HEADER *g_pX64MsgHdr;
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| 194 | /** @} */
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| 195 | #endif
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| 196 |
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| 197 |
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[70942] | 198 | /*
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| 199 | * Let the preprocessor alias the APIs to import variables for better autocompletion.
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| 200 | */
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| 201 | #ifndef IN_SLICKEDIT
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| 202 | # define WHvGetCapability g_pfnWHvGetCapability
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| 203 | # define WHvCreatePartition g_pfnWHvCreatePartition
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| 204 | # define WHvSetupPartition g_pfnWHvSetupPartition
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| 205 | # define WHvDeletePartition g_pfnWHvDeletePartition
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| 206 | # define WHvGetPartitionProperty g_pfnWHvGetPartitionProperty
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| 207 | # define WHvSetPartitionProperty g_pfnWHvSetPartitionProperty
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| 208 | # define WHvMapGpaRange g_pfnWHvMapGpaRange
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| 209 | # define WHvUnmapGpaRange g_pfnWHvUnmapGpaRange
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| 210 | # define WHvTranslateGva g_pfnWHvTranslateGva
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| 211 | # define WHvCreateVirtualProcessor g_pfnWHvCreateVirtualProcessor
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| 212 | # define WHvDeleteVirtualProcessor g_pfnWHvDeleteVirtualProcessor
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| 213 | # define WHvRunVirtualProcessor g_pfnWHvRunVirtualProcessor
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| 214 | # define WHvGetRunExitContextSize g_pfnWHvGetRunExitContextSize
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| 215 | # define WHvCancelRunVirtualProcessor g_pfnWHvCancelRunVirtualProcessor
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| 216 | # define WHvGetVirtualProcessorRegisters g_pfnWHvGetVirtualProcessorRegisters
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| 217 | # define WHvSetVirtualProcessorRegisters g_pfnWHvSetVirtualProcessorRegisters
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[71184] | 218 |
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| 219 | # define VidMessageSlotHandleAndGetNext g_pfnVidMessageSlotHandleAndGetNext
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[71296] | 220 | # define VidStartVirtualProcessor g_pfnVidStartVirtualProcessor
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[71184] | 221 | # define VidStopVirtualProcessor g_pfnVidStopVirtualProcessor
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| 222 |
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[70942] | 223 | #endif
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| 224 |
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[71040] | 225 | /** WHV_MEMORY_ACCESS_TYPE names */
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| 226 | static const char * const g_apszWHvMemAccesstypes[4] = { "read", "write", "exec", "!undefined!" };
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[70942] | 227 |
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[71040] | 228 |
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[71031] | 229 | /*********************************************************************************************************************************
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| 230 | * Internal Functions *
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| 231 | *********************************************************************************************************************************/
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| 232 |
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[71152] | 233 | /*
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| 234 | * Instantate the code we share with ring-0.
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| 235 | */
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[72924] | 236 | #ifdef NEM_WIN_USE_OUR_OWN_RUN_API
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| 237 | # define NEM_WIN_TEMPLATE_MODE_OWN_RUN_API
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| 238 | #else
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| 239 | # undef NEM_WIN_TEMPLATE_MODE_OWN_RUN_API
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| 240 | #endif
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[71152] | 241 | #include "../VMMAll/NEMAllNativeTemplate-win.cpp.h"
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[71031] | 242 |
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[71131] | 243 |
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[71152] | 244 |
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[70977] | 245 | #ifdef NEM_WIN_INTERCEPT_NT_IO_CTLS
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[70944] | 246 | /**
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[70977] | 247 | * Wrapper that logs the call from VID.DLL.
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| 248 | *
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| 249 | * This is very handy for figuring out why an API call fails.
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| 250 | */
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| 251 | static NTSTATUS WINAPI
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| 252 | nemR3WinLogWrapper_NtDeviceIoControlFile(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
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| 253 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
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| 254 | PVOID pvOutput, ULONG cbOutput)
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| 255 | {
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[71131] | 256 |
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[71129] | 257 | char szFunction[32];
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| 258 | const char *pszFunction;
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[71131] | 259 | if (uFunction == g_IoCtlMessageSlotHandleAndGetNext.uFunction)
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| 260 | pszFunction = "VidMessageSlotHandleAndGetNext";
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| 261 | else if (uFunction == g_IoCtlStartVirtualProcessor.uFunction)
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| 262 | pszFunction = "VidStartVirtualProcessor";
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| 263 | else if (uFunction == g_IoCtlStopVirtualProcessor.uFunction)
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| 264 | pszFunction = "VidStopVirtualProcessor";
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| 265 | else if (uFunction == g_IoCtlMessageSlotMap.uFunction)
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| 266 | pszFunction = "VidMessageSlotMap";
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| 267 | else if (uFunction == g_IoCtlGetVirtualProcessorState.uFunction)
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| 268 | pszFunction = "VidGetVirtualProcessorState";
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| 269 | else if (uFunction == g_IoCtlSetVirtualProcessorState.uFunction)
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| 270 | pszFunction = "VidSetVirtualProcessorState";
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| 271 | else
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[71129] | 272 | {
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[71131] | 273 | RTStrPrintf(szFunction, sizeof(szFunction), "%#x", uFunction);
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| 274 | pszFunction = szFunction;
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[71129] | 275 | }
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| 276 |
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| 277 | if (cbInput > 0 && pvInput)
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| 278 | Log12(("VID!NtDeviceIoControlFile: %s/input: %.*Rhxs\n", pszFunction, RT_MIN(cbInput, 32), pvInput));
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[70977] | 279 | NTSTATUS rcNt = g_pfnNtDeviceIoControlFile(hFile, hEvt, pfnApcCallback, pvApcCtx, pIos, uFunction,
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| 280 | pvInput, cbInput, pvOutput, cbOutput);
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| 281 | if (!hEvt && !pfnApcCallback && !pvApcCtx)
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[71129] | 282 | Log12(("VID!NtDeviceIoControlFile: hFile=%#zx pIos=%p->{s:%#x, i:%#zx} uFunction=%s Input=%p LB %#x Output=%p LB %#x) -> %#x; Caller=%p\n",
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| 283 | hFile, pIos, pIos->Status, pIos->Information, pszFunction, pvInput, cbInput, pvOutput, cbOutput, rcNt, ASMReturnAddress()));
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[70977] | 284 | else
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[71129] | 285 | Log12(("VID!NtDeviceIoControlFile: hFile=%#zx hEvt=%#zx Apc=%p/%p pIos=%p->{s:%#x, i:%#zx} uFunction=%s Input=%p LB %#x Output=%p LB %#x) -> %#x; Caller=%p\n",
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| 286 | hFile, hEvt, pfnApcCallback, pvApcCtx, pIos, pIos->Status, pIos->Information, pszFunction,
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[71040] | 287 | pvInput, cbInput, pvOutput, cbOutput, rcNt, ASMReturnAddress()));
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[71129] | 288 | if (cbOutput > 0 && pvOutput)
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| 289 | {
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| 290 | Log12(("VID!NtDeviceIoControlFile: %s/output: %.*Rhxs\n", pszFunction, RT_MIN(cbOutput, 32), pvOutput));
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| 291 | if (uFunction == 0x2210cc && g_pMsgSlotMapping == NULL && cbOutput >= sizeof(void *))
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| 292 | {
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| 293 | g_pMsgSlotMapping = *(VID_MESSAGE_MAPPING_HEADER **)pvOutput;
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| 294 | g_pHvMsgHdr = (const HV_MESSAGE_HEADER *)(g_pMsgSlotMapping + 1);
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| 295 | g_pX64MsgHdr = (const HV_X64_INTERCEPT_MESSAGE_HEADER *)(g_pHvMsgHdr + 1);
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| 296 | Log12(("VID!NtDeviceIoControlFile: Message slot mapping: %p\n", g_pMsgSlotMapping));
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| 297 | }
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| 298 | }
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[71131] | 299 | if ( g_pMsgSlotMapping
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| 300 | && ( uFunction == g_IoCtlMessageSlotHandleAndGetNext.uFunction
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| 301 | || uFunction == g_IoCtlStopVirtualProcessor.uFunction
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| 302 | || uFunction == g_IoCtlMessageSlotMap.uFunction
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| 303 | ))
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[71129] | 304 | Log12(("VID!NtDeviceIoControlFile: enmVidMsgType=%#x cb=%#x msg=%#x payload=%u cs:rip=%04x:%08RX64 (%s)\n",
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| 305 | g_pMsgSlotMapping->enmVidMsgType, g_pMsgSlotMapping->cbMessage,
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| 306 | g_pHvMsgHdr->MessageType, g_pHvMsgHdr->PayloadSize,
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| 307 | g_pX64MsgHdr->CsSegment.Selector, g_pX64MsgHdr->Rip, pszFunction));
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| 308 |
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[70977] | 309 | return rcNt;
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| 310 | }
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[71131] | 311 | #endif /* NEM_WIN_INTERCEPT_NT_IO_CTLS */
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[70977] | 312 |
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| 313 |
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| 314 | /**
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[71131] | 315 | * Patches the call table of VID.DLL so we can intercept NtDeviceIoControlFile.
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[70977] | 316 | *
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[71131] | 317 | * This is for used to figure out the I/O control codes and in logging builds
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| 318 | * for logging API calls that WinHvPlatform.dll does.
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[70977] | 319 | *
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[71131] | 320 | * @returns VBox status code.
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[70977] | 321 | * @param hLdrModVid The VID module handle.
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[71131] | 322 | * @param pErrInfo Where to return additional error information.
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[70977] | 323 | */
|
---|
[71131] | 324 | static int nemR3WinInitVidIntercepts(RTLDRMOD hLdrModVid, PRTERRINFO pErrInfo)
|
---|
[70977] | 325 | {
|
---|
| 326 | /*
|
---|
| 327 | * Locate the real API.
|
---|
| 328 | */
|
---|
| 329 | g_pfnNtDeviceIoControlFile = (decltype(NtDeviceIoControlFile) *)RTLdrGetSystemSymbol("NTDLL.DLL", "NtDeviceIoControlFile");
|
---|
[71131] | 330 | AssertReturn(g_pfnNtDeviceIoControlFile != NULL,
|
---|
| 331 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Failed to resolve NtDeviceIoControlFile from NTDLL.DLL"));
|
---|
[70977] | 332 |
|
---|
| 333 | /*
|
---|
| 334 | * Locate the PE header and get what we need from it.
|
---|
| 335 | */
|
---|
| 336 | uint8_t const *pbImage = (uint8_t const *)RTLdrGetNativeHandle(hLdrModVid);
|
---|
| 337 | IMAGE_DOS_HEADER const *pMzHdr = (IMAGE_DOS_HEADER const *)pbImage;
|
---|
[71131] | 338 | AssertReturn(pMzHdr->e_magic == IMAGE_DOS_SIGNATURE,
|
---|
| 339 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL mapping doesn't start with MZ signature: %#x", pMzHdr->e_magic));
|
---|
[70977] | 340 | IMAGE_NT_HEADERS const *pNtHdrs = (IMAGE_NT_HEADERS const *)&pbImage[pMzHdr->e_lfanew];
|
---|
[71131] | 341 | AssertReturn(pNtHdrs->Signature == IMAGE_NT_SIGNATURE,
|
---|
| 342 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL has invalid PE signaturre: %#x @%#x",
|
---|
| 343 | pNtHdrs->Signature, pMzHdr->e_lfanew));
|
---|
[70977] | 344 |
|
---|
| 345 | uint32_t const cbImage = pNtHdrs->OptionalHeader.SizeOfImage;
|
---|
| 346 | IMAGE_DATA_DIRECTORY const ImportDir = pNtHdrs->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
|
---|
| 347 |
|
---|
| 348 | /*
|
---|
| 349 | * Walk the import descriptor table looking for NTDLL.DLL.
|
---|
| 350 | */
|
---|
[71131] | 351 | AssertReturn( ImportDir.Size > 0
|
---|
| 352 | && ImportDir.Size < cbImage,
|
---|
| 353 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad import directory size: %#x", ImportDir.Size));
|
---|
| 354 | AssertReturn( ImportDir.VirtualAddress > 0
|
---|
| 355 | && ImportDir.VirtualAddress <= cbImage - ImportDir.Size,
|
---|
| 356 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad import directory RVA: %#x", ImportDir.VirtualAddress));
|
---|
| 357 |
|
---|
[70977] | 358 | for (PIMAGE_IMPORT_DESCRIPTOR pImps = (PIMAGE_IMPORT_DESCRIPTOR)&pbImage[ImportDir.VirtualAddress];
|
---|
| 359 | pImps->Name != 0 && pImps->FirstThunk != 0;
|
---|
| 360 | pImps++)
|
---|
| 361 | {
|
---|
[71131] | 362 | AssertReturn(pImps->Name < cbImage,
|
---|
| 363 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad import directory entry name: %#x", pImps->Name));
|
---|
[70977] | 364 | const char *pszModName = (const char *)&pbImage[pImps->Name];
|
---|
| 365 | if (RTStrICmpAscii(pszModName, "ntdll.dll"))
|
---|
| 366 | continue;
|
---|
[71131] | 367 | AssertReturn(pImps->FirstThunk < cbImage,
|
---|
| 368 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad FirstThunk: %#x", pImps->FirstThunk));
|
---|
| 369 | AssertReturn(pImps->OriginalFirstThunk < cbImage,
|
---|
| 370 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad FirstThunk: %#x", pImps->FirstThunk));
|
---|
[70977] | 371 |
|
---|
| 372 | /*
|
---|
| 373 | * Walk the thunks table(s) looking for NtDeviceIoControlFile.
|
---|
| 374 | */
|
---|
| 375 | PIMAGE_THUNK_DATA pFirstThunk = (PIMAGE_THUNK_DATA)&pbImage[pImps->FirstThunk]; /* update this. */
|
---|
| 376 | PIMAGE_THUNK_DATA pThunk = pImps->OriginalFirstThunk == 0 /* read from this. */
|
---|
| 377 | ? (PIMAGE_THUNK_DATA)&pbImage[pImps->FirstThunk]
|
---|
| 378 | : (PIMAGE_THUNK_DATA)&pbImage[pImps->OriginalFirstThunk];
|
---|
| 379 | while (pThunk->u1.Ordinal != 0)
|
---|
| 380 | {
|
---|
| 381 | if (!(pThunk->u1.Ordinal & IMAGE_ORDINAL_FLAG32))
|
---|
| 382 | {
|
---|
[71131] | 383 | AssertReturn(pThunk->u1.Ordinal > 0 && pThunk->u1.Ordinal < cbImage,
|
---|
| 384 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "VID.DLL bad FirstThunk: %#x", pImps->FirstThunk));
|
---|
[70977] | 385 |
|
---|
| 386 | const char *pszSymbol = (const char *)&pbImage[(uintptr_t)pThunk->u1.AddressOfData + 2];
|
---|
| 387 | if (strcmp(pszSymbol, "NtDeviceIoControlFile") == 0)
|
---|
| 388 | {
|
---|
[71131] | 389 | DWORD fOldProt = PAGE_READONLY;
|
---|
[70977] | 390 | VirtualProtect(&pFirstThunk->u1.Function, sizeof(uintptr_t), PAGE_EXECUTE_READWRITE, &fOldProt);
|
---|
[71131] | 391 | g_ppfnVidNtDeviceIoControlFile = (decltype(NtDeviceIoControlFile) **)&pFirstThunk->u1.Function;
|
---|
| 392 | /* Don't restore the protection here, so we modify the NtDeviceIoControlFile pointer later. */
|
---|
[70977] | 393 | }
|
---|
| 394 | }
|
---|
| 395 |
|
---|
| 396 | pThunk++;
|
---|
| 397 | pFirstThunk++;
|
---|
| 398 | }
|
---|
| 399 | }
|
---|
[71131] | 400 |
|
---|
| 401 | if (*g_ppfnVidNtDeviceIoControlFile)
|
---|
| 402 | {
|
---|
| 403 | #ifdef NEM_WIN_INTERCEPT_NT_IO_CTLS
|
---|
| 404 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinLogWrapper_NtDeviceIoControlFile;
|
---|
| 405 | #endif
|
---|
| 406 | return VINF_SUCCESS;
|
---|
| 407 | }
|
---|
| 408 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Failed to patch NtDeviceIoControlFile import in VID.DLL!");
|
---|
[70977] | 409 | }
|
---|
| 410 |
|
---|
| 411 |
|
---|
| 412 | /**
|
---|
[70954] | 413 | * Worker for nemR3NativeInit that probes and load the native API.
|
---|
| 414 | *
|
---|
| 415 | * @returns VBox status code.
|
---|
| 416 | * @param fForced Whether the HMForced flag is set and we should
|
---|
| 417 | * fail if we cannot initialize.
|
---|
| 418 | * @param pErrInfo Where to always return error info.
|
---|
| 419 | */
|
---|
| 420 | static int nemR3WinInitProbeAndLoad(bool fForced, PRTERRINFO pErrInfo)
|
---|
| 421 | {
|
---|
| 422 | /*
|
---|
| 423 | * Check that the DLL files we need are present, but without loading them.
|
---|
| 424 | * We'd like to avoid loading them unnecessarily.
|
---|
| 425 | */
|
---|
| 426 | WCHAR wszPath[MAX_PATH + 64];
|
---|
| 427 | UINT cwcPath = GetSystemDirectoryW(wszPath, MAX_PATH);
|
---|
| 428 | if (cwcPath >= MAX_PATH || cwcPath < 2)
|
---|
| 429 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "GetSystemDirectoryW failed (%#x / %u)", cwcPath, GetLastError());
|
---|
| 430 |
|
---|
| 431 | if (wszPath[cwcPath - 1] != '\\' || wszPath[cwcPath - 1] != '/')
|
---|
| 432 | wszPath[cwcPath++] = '\\';
|
---|
| 433 | RTUtf16CopyAscii(&wszPath[cwcPath], RT_ELEMENTS(wszPath) - cwcPath, "WinHvPlatform.dll");
|
---|
| 434 | if (GetFileAttributesW(wszPath) == INVALID_FILE_ATTRIBUTES)
|
---|
| 435 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "The native API dll was not found (%ls)", wszPath);
|
---|
| 436 |
|
---|
| 437 | /*
|
---|
| 438 | * Check that we're in a VM and that the hypervisor identifies itself as Hyper-V.
|
---|
| 439 | */
|
---|
| 440 | if (!ASMHasCpuId())
|
---|
| 441 | return RTErrInfoSet(pErrInfo, VERR_NEM_NOT_AVAILABLE, "No CPUID support");
|
---|
| 442 | if (!ASMIsValidStdRange(ASMCpuId_EAX(0)))
|
---|
| 443 | return RTErrInfoSet(pErrInfo, VERR_NEM_NOT_AVAILABLE, "No CPUID leaf #1");
|
---|
| 444 | if (!(ASMCpuId_ECX(1) & X86_CPUID_FEATURE_ECX_HVP))
|
---|
| 445 | return RTErrInfoSet(pErrInfo, VERR_NEM_NOT_AVAILABLE, "Not in a hypervisor partition (HVP=0)");
|
---|
| 446 |
|
---|
| 447 | uint32_t cMaxHyperLeaf = 0;
|
---|
| 448 | uint32_t uEbx = 0;
|
---|
| 449 | uint32_t uEcx = 0;
|
---|
| 450 | uint32_t uEdx = 0;
|
---|
| 451 | ASMCpuIdExSlow(0x40000000, 0, 0, 0, &cMaxHyperLeaf, &uEbx, &uEcx, &uEdx);
|
---|
| 452 | if (!ASMIsValidHypervisorRange(cMaxHyperLeaf))
|
---|
| 453 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "Invalid hypervisor CPUID range (%#x %#x %#x %#x)",
|
---|
| 454 | cMaxHyperLeaf, uEbx, uEcx, uEdx);
|
---|
| 455 | if ( uEbx != UINT32_C(0x7263694d) /* Micr */
|
---|
| 456 | || uEcx != UINT32_C(0x666f736f) /* osof */
|
---|
| 457 | || uEdx != UINT32_C(0x76482074) /* t Hv */)
|
---|
| 458 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE,
|
---|
| 459 | "Not Hyper-V CPUID signature: %#x %#x %#x (expected %#x %#x %#x)",
|
---|
| 460 | uEbx, uEcx, uEdx, UINT32_C(0x7263694d), UINT32_C(0x666f736f), UINT32_C(0x76482074));
|
---|
| 461 | if (cMaxHyperLeaf < UINT32_C(0x40000005))
|
---|
| 462 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "Too narrow hypervisor CPUID range (%#x)", cMaxHyperLeaf);
|
---|
| 463 |
|
---|
| 464 | /** @todo would be great if we could recognize a root partition from the
|
---|
| 465 | * CPUID info, but I currently don't dare do that. */
|
---|
| 466 |
|
---|
| 467 | /*
|
---|
| 468 | * Now try load the DLLs and resolve the APIs.
|
---|
| 469 | */
|
---|
| 470 | static const char * const s_apszDllNames[2] = { "WinHvPlatform.dll", "vid.dll" };
|
---|
| 471 | RTLDRMOD ahMods[2] = { NIL_RTLDRMOD, NIL_RTLDRMOD };
|
---|
| 472 | int rc = VINF_SUCCESS;
|
---|
| 473 | for (unsigned i = 0; i < RT_ELEMENTS(s_apszDllNames); i++)
|
---|
| 474 | {
|
---|
| 475 | int rc2 = RTLdrLoadSystem(s_apszDllNames[i], true /*fNoUnload*/, &ahMods[i]);
|
---|
| 476 | if (RT_FAILURE(rc2))
|
---|
| 477 | {
|
---|
| 478 | if (!RTErrInfoIsSet(pErrInfo))
|
---|
| 479 | RTErrInfoSetF(pErrInfo, rc2, "Failed to load API DLL: %s: %Rrc", s_apszDllNames[i], rc2);
|
---|
| 480 | else
|
---|
| 481 | RTErrInfoAddF(pErrInfo, rc2, "; %s: %Rrc", s_apszDllNames[i], rc2);
|
---|
| 482 | ahMods[i] = NIL_RTLDRMOD;
|
---|
| 483 | rc = VERR_NEM_INIT_FAILED;
|
---|
| 484 | }
|
---|
| 485 | }
|
---|
| 486 | if (RT_SUCCESS(rc))
|
---|
[71131] | 487 | rc = nemR3WinInitVidIntercepts(ahMods[1], pErrInfo);
|
---|
| 488 | if (RT_SUCCESS(rc))
|
---|
[70954] | 489 | {
|
---|
| 490 | for (unsigned i = 0; i < RT_ELEMENTS(g_aImports); i++)
|
---|
| 491 | {
|
---|
| 492 | int rc2 = RTLdrGetSymbol(ahMods[g_aImports[i].idxDll], g_aImports[i].pszName, (void **)g_aImports[i].ppfn);
|
---|
| 493 | if (RT_FAILURE(rc2))
|
---|
| 494 | {
|
---|
| 495 | *g_aImports[i].ppfn = NULL;
|
---|
| 496 |
|
---|
| 497 | LogRel(("NEM: %s: Failed to import %s!%s: %Rrc",
|
---|
| 498 | g_aImports[i].fOptional ? "info" : fForced ? "fatal" : "error",
|
---|
| 499 | s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName, rc2));
|
---|
| 500 | if (!g_aImports[i].fOptional)
|
---|
| 501 | {
|
---|
| 502 | if (RTErrInfoIsSet(pErrInfo))
|
---|
| 503 | RTErrInfoAddF(pErrInfo, rc2, ", %s!%s",
|
---|
| 504 | s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
|
---|
| 505 | else
|
---|
| 506 | rc = RTErrInfoSetF(pErrInfo, rc2, "Failed to import: %s!%s",
|
---|
| 507 | s_apszDllNames[g_aImports[i].idxDll], g_aImports[i].pszName);
|
---|
| 508 | Assert(RT_FAILURE(rc));
|
---|
| 509 | }
|
---|
| 510 | }
|
---|
| 511 | }
|
---|
| 512 | if (RT_SUCCESS(rc))
|
---|
[71131] | 513 | {
|
---|
[70954] | 514 | Assert(!RTErrInfoIsSet(pErrInfo));
|
---|
[71131] | 515 | }
|
---|
[70954] | 516 | }
|
---|
| 517 |
|
---|
| 518 | for (unsigned i = 0; i < RT_ELEMENTS(ahMods); i++)
|
---|
| 519 | RTLdrClose(ahMods[i]);
|
---|
| 520 | return rc;
|
---|
| 521 | }
|
---|
| 522 |
|
---|
| 523 |
|
---|
| 524 | /**
|
---|
[71296] | 525 | * Wrapper for different WHvGetCapability signatures.
|
---|
| 526 | */
|
---|
| 527 | DECLINLINE(HRESULT) WHvGetCapabilityWrapper(WHV_CAPABILITY_CODE enmCap, WHV_CAPABILITY *pOutput, uint32_t cbOutput)
|
---|
| 528 | {
|
---|
| 529 | return g_pfnWHvGetCapability(enmCap, pOutput, cbOutput, NULL);
|
---|
| 530 | }
|
---|
| 531 |
|
---|
| 532 |
|
---|
| 533 | /**
|
---|
[70944] | 534 | * Worker for nemR3NativeInit that gets the hypervisor capabilities.
|
---|
| 535 | *
|
---|
| 536 | * @returns VBox status code.
|
---|
| 537 | * @param pVM The cross context VM structure.
|
---|
| 538 | * @param pErrInfo Where to always return error info.
|
---|
| 539 | */
|
---|
[70945] | 540 | static int nemR3WinInitCheckCapabilities(PVM pVM, PRTERRINFO pErrInfo)
|
---|
[70944] | 541 | {
|
---|
| 542 | #define NEM_LOG_REL_CAP_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %-38s= " a_szFmt "\n", a_szField, a_Value))
|
---|
| 543 | #define NEM_LOG_REL_CAP_SUB_EX(a_szField, a_szFmt, a_Value) LogRel(("NEM: %36s: " a_szFmt "\n", a_szField, a_Value))
|
---|
| 544 | #define NEM_LOG_REL_CAP_SUB(a_szField, a_Value) NEM_LOG_REL_CAP_SUB_EX(a_szField, "%d", a_Value)
|
---|
| 545 |
|
---|
| 546 | /*
|
---|
| 547 | * Is the hypervisor present with the desired capability?
|
---|
| 548 | *
|
---|
| 549 | * In build 17083 this translates into:
|
---|
| 550 | * - CPUID[0x00000001].HVP is set
|
---|
| 551 | * - CPUID[0x40000000] == "Microsoft Hv"
|
---|
| 552 | * - CPUID[0x40000001].eax == "Hv#1"
|
---|
| 553 | * - CPUID[0x40000003].ebx[12] is set.
|
---|
| 554 | * - VidGetExoPartitionProperty(INVALID_HANDLE_VALUE, 0x60000, &Ignored) returns
|
---|
| 555 | * a non-zero value.
|
---|
| 556 | */
|
---|
| 557 | /**
|
---|
[70945] | 558 | * @todo Someone at Microsoft please explain weird API design:
|
---|
| 559 | * 1. Pointless CapabilityCode duplication int the output;
|
---|
[70944] | 560 | * 2. No output size.
|
---|
| 561 | */
|
---|
| 562 | WHV_CAPABILITY Caps;
|
---|
| 563 | RT_ZERO(Caps);
|
---|
| 564 | SetLastError(0);
|
---|
[71296] | 565 | HRESULT hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeHypervisorPresent, &Caps, sizeof(Caps));
|
---|
[70944] | 566 | DWORD rcWin = GetLastError();
|
---|
| 567 | if (FAILED(hrc))
|
---|
[70977] | 568 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 569 | "WHvGetCapability/WHvCapabilityCodeHypervisorPresent failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 570 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 571 | if (!Caps.HypervisorPresent)
|
---|
| 572 | {
|
---|
| 573 | if (!RTPathExists(RTPATH_NT_PASSTHRU_PREFIX "Device\\VidExo"))
|
---|
| 574 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE,
|
---|
| 575 | "WHvCapabilityCodeHypervisorPresent is FALSE! Make sure you have enabled the 'Windows Hypervisor Platform' feature.");
|
---|
| 576 | return RTErrInfoSetF(pErrInfo, VERR_NEM_NOT_AVAILABLE, "WHvCapabilityCodeHypervisorPresent is FALSE! (%u)", rcWin);
|
---|
| 577 | }
|
---|
| 578 | LogRel(("NEM: WHvCapabilityCodeHypervisorPresent is TRUE, so this might work...\n"));
|
---|
| 579 |
|
---|
| 580 |
|
---|
| 581 | /*
|
---|
| 582 | * Check what extended VM exits are supported.
|
---|
| 583 | */
|
---|
| 584 | RT_ZERO(Caps);
|
---|
[71296] | 585 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeExtendedVmExits, &Caps, sizeof(Caps));
|
---|
[70944] | 586 | if (FAILED(hrc))
|
---|
[70977] | 587 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 588 | "WHvGetCapability/WHvCapabilityCodeExtendedVmExits failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 589 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 590 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeExtendedVmExits", "%'#018RX64", Caps.ExtendedVmExits.AsUINT64);
|
---|
| 591 | pVM->nem.s.fExtendedMsrExit = RT_BOOL(Caps.ExtendedVmExits.X64MsrExit);
|
---|
| 592 | pVM->nem.s.fExtendedCpuIdExit = RT_BOOL(Caps.ExtendedVmExits.X64CpuidExit);
|
---|
| 593 | pVM->nem.s.fExtendedXcptExit = RT_BOOL(Caps.ExtendedVmExits.ExceptionExit);
|
---|
| 594 | NEM_LOG_REL_CAP_SUB("fExtendedMsrExit", pVM->nem.s.fExtendedMsrExit);
|
---|
| 595 | NEM_LOG_REL_CAP_SUB("fExtendedCpuIdExit", pVM->nem.s.fExtendedCpuIdExit);
|
---|
| 596 | NEM_LOG_REL_CAP_SUB("fExtendedXcptExit", pVM->nem.s.fExtendedXcptExit);
|
---|
| 597 | if (Caps.ExtendedVmExits.AsUINT64 & ~(uint64_t)7)
|
---|
| 598 | LogRel(("NEM: Warning! Unknown VM exit definitions: %#RX64\n", Caps.ExtendedVmExits.AsUINT64));
|
---|
| 599 | /** @todo RECHECK: WHV_EXTENDED_VM_EXITS typedef. */
|
---|
| 600 |
|
---|
| 601 | /*
|
---|
| 602 | * Check features in case they end up defining any.
|
---|
| 603 | */
|
---|
| 604 | RT_ZERO(Caps);
|
---|
[71296] | 605 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeFeatures, &Caps, sizeof(Caps));
|
---|
[70944] | 606 | if (FAILED(hrc))
|
---|
[70977] | 607 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 608 | "WHvGetCapability/WHvCapabilityCodeFeatures failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 609 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 610 | if (Caps.Features.AsUINT64 & ~(uint64_t)0)
|
---|
| 611 | LogRel(("NEM: Warning! Unknown feature definitions: %#RX64\n", Caps.Features.AsUINT64));
|
---|
| 612 | /** @todo RECHECK: WHV_CAPABILITY_FEATURES typedef. */
|
---|
| 613 |
|
---|
| 614 | /*
|
---|
[72262] | 615 | * Check supported exception exit bitmap bits.
|
---|
| 616 | * We don't currently require this, so we just log failure.
|
---|
| 617 | */
|
---|
| 618 | RT_ZERO(Caps);
|
---|
| 619 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeExceptionExitBitmap, &Caps, sizeof(Caps));
|
---|
| 620 | if (SUCCEEDED(hrc))
|
---|
[72446] | 621 | LogRel(("NEM: Supported exception exit bitmap: %#RX64\n", Caps.ExceptionExitBitmap));
|
---|
[72262] | 622 | else
|
---|
| 623 | LogRel(("NEM: Warning! WHvGetCapability/WHvCapabilityCodeExceptionExitBitmap failed: %Rhrc (Last=%#x/%u)",
|
---|
| 624 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
|
---|
| 625 |
|
---|
| 626 | /*
|
---|
[70944] | 627 | * Check that the CPU vendor is supported.
|
---|
| 628 | */
|
---|
| 629 | RT_ZERO(Caps);
|
---|
[71296] | 630 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorVendor, &Caps, sizeof(Caps));
|
---|
[70944] | 631 | if (FAILED(hrc))
|
---|
[70977] | 632 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 633 | "WHvGetCapability/WHvCapabilityCodeProcessorVendor failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 634 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 635 | switch (Caps.ProcessorVendor)
|
---|
| 636 | {
|
---|
| 637 | /** @todo RECHECK: WHV_PROCESSOR_VENDOR typedef. */
|
---|
| 638 | case WHvProcessorVendorIntel:
|
---|
| 639 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d - Intel", Caps.ProcessorVendor);
|
---|
| 640 | pVM->nem.s.enmCpuVendor = CPUMCPUVENDOR_INTEL;
|
---|
| 641 | break;
|
---|
| 642 | case WHvProcessorVendorAmd:
|
---|
| 643 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d - AMD", Caps.ProcessorVendor);
|
---|
| 644 | pVM->nem.s.enmCpuVendor = CPUMCPUVENDOR_AMD;
|
---|
| 645 | break;
|
---|
| 646 | default:
|
---|
| 647 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorVendor", "%d", Caps.ProcessorVendor);
|
---|
| 648 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unknown processor vendor: %d", Caps.ProcessorVendor);
|
---|
| 649 | }
|
---|
| 650 |
|
---|
| 651 | /*
|
---|
| 652 | * CPU features, guessing these are virtual CPU features?
|
---|
| 653 | */
|
---|
| 654 | RT_ZERO(Caps);
|
---|
[71296] | 655 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorFeatures, &Caps, sizeof(Caps));
|
---|
[70944] | 656 | if (FAILED(hrc))
|
---|
[70977] | 657 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 658 | "WHvGetCapability/WHvCapabilityCodeProcessorFeatures failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 659 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 660 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorFeatures", "%'#018RX64", Caps.ProcessorFeatures.AsUINT64);
|
---|
| 661 | #define NEM_LOG_REL_CPU_FEATURE(a_Field) NEM_LOG_REL_CAP_SUB(#a_Field, Caps.ProcessorFeatures.a_Field)
|
---|
| 662 | NEM_LOG_REL_CPU_FEATURE(Sse3Support);
|
---|
| 663 | NEM_LOG_REL_CPU_FEATURE(LahfSahfSupport);
|
---|
| 664 | NEM_LOG_REL_CPU_FEATURE(Ssse3Support);
|
---|
| 665 | NEM_LOG_REL_CPU_FEATURE(Sse4_1Support);
|
---|
| 666 | NEM_LOG_REL_CPU_FEATURE(Sse4_2Support);
|
---|
| 667 | NEM_LOG_REL_CPU_FEATURE(Sse4aSupport);
|
---|
| 668 | NEM_LOG_REL_CPU_FEATURE(XopSupport);
|
---|
| 669 | NEM_LOG_REL_CPU_FEATURE(PopCntSupport);
|
---|
| 670 | NEM_LOG_REL_CPU_FEATURE(Cmpxchg16bSupport);
|
---|
| 671 | NEM_LOG_REL_CPU_FEATURE(Altmovcr8Support);
|
---|
| 672 | NEM_LOG_REL_CPU_FEATURE(LzcntSupport);
|
---|
| 673 | NEM_LOG_REL_CPU_FEATURE(MisAlignSseSupport);
|
---|
| 674 | NEM_LOG_REL_CPU_FEATURE(MmxExtSupport);
|
---|
| 675 | NEM_LOG_REL_CPU_FEATURE(Amd3DNowSupport);
|
---|
| 676 | NEM_LOG_REL_CPU_FEATURE(ExtendedAmd3DNowSupport);
|
---|
| 677 | NEM_LOG_REL_CPU_FEATURE(Page1GbSupport);
|
---|
| 678 | NEM_LOG_REL_CPU_FEATURE(AesSupport);
|
---|
| 679 | NEM_LOG_REL_CPU_FEATURE(PclmulqdqSupport);
|
---|
| 680 | NEM_LOG_REL_CPU_FEATURE(PcidSupport);
|
---|
| 681 | NEM_LOG_REL_CPU_FEATURE(Fma4Support);
|
---|
| 682 | NEM_LOG_REL_CPU_FEATURE(F16CSupport);
|
---|
| 683 | NEM_LOG_REL_CPU_FEATURE(RdRandSupport);
|
---|
| 684 | NEM_LOG_REL_CPU_FEATURE(RdWrFsGsSupport);
|
---|
| 685 | NEM_LOG_REL_CPU_FEATURE(SmepSupport);
|
---|
| 686 | NEM_LOG_REL_CPU_FEATURE(EnhancedFastStringSupport);
|
---|
| 687 | NEM_LOG_REL_CPU_FEATURE(Bmi1Support);
|
---|
| 688 | NEM_LOG_REL_CPU_FEATURE(Bmi2Support);
|
---|
| 689 | /* two reserved bits here, see below */
|
---|
| 690 | NEM_LOG_REL_CPU_FEATURE(MovbeSupport);
|
---|
| 691 | NEM_LOG_REL_CPU_FEATURE(Npiep1Support);
|
---|
| 692 | NEM_LOG_REL_CPU_FEATURE(DepX87FPUSaveSupport);
|
---|
| 693 | NEM_LOG_REL_CPU_FEATURE(RdSeedSupport);
|
---|
| 694 | NEM_LOG_REL_CPU_FEATURE(AdxSupport);
|
---|
| 695 | NEM_LOG_REL_CPU_FEATURE(IntelPrefetchSupport);
|
---|
| 696 | NEM_LOG_REL_CPU_FEATURE(SmapSupport);
|
---|
| 697 | NEM_LOG_REL_CPU_FEATURE(HleSupport);
|
---|
| 698 | NEM_LOG_REL_CPU_FEATURE(RtmSupport);
|
---|
| 699 | NEM_LOG_REL_CPU_FEATURE(RdtscpSupport);
|
---|
| 700 | NEM_LOG_REL_CPU_FEATURE(ClflushoptSupport);
|
---|
| 701 | NEM_LOG_REL_CPU_FEATURE(ClwbSupport);
|
---|
| 702 | NEM_LOG_REL_CPU_FEATURE(ShaSupport);
|
---|
| 703 | NEM_LOG_REL_CPU_FEATURE(X87PointersSavedSupport);
|
---|
| 704 | #undef NEM_LOG_REL_CPU_FEATURE
|
---|
| 705 | if (Caps.ProcessorFeatures.AsUINT64 & (~(RT_BIT_64(43) - 1) | RT_BIT_64(27) | RT_BIT_64(28)))
|
---|
| 706 | LogRel(("NEM: Warning! Unknown CPU features: %#RX64\n", Caps.ProcessorFeatures.AsUINT64));
|
---|
| 707 | pVM->nem.s.uCpuFeatures.u64 = Caps.ProcessorFeatures.AsUINT64;
|
---|
| 708 | /** @todo RECHECK: WHV_PROCESSOR_FEATURES typedef. */
|
---|
| 709 |
|
---|
| 710 | /*
|
---|
| 711 | * The cache line flush size.
|
---|
| 712 | */
|
---|
| 713 | RT_ZERO(Caps);
|
---|
[71296] | 714 | hrc = WHvGetCapabilityWrapper(WHvCapabilityCodeProcessorClFlushSize, &Caps, sizeof(Caps));
|
---|
[70944] | 715 | if (FAILED(hrc))
|
---|
[70977] | 716 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 717 | "WHvGetCapability/WHvCapabilityCodeProcessorClFlushSize failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 718 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70944] | 719 | NEM_LOG_REL_CAP_EX("WHvCapabilityCodeProcessorClFlushSize", "2^%u", Caps.ProcessorClFlushSize);
|
---|
[70945] | 720 | if (Caps.ProcessorClFlushSize < 8 && Caps.ProcessorClFlushSize > 9)
|
---|
| 721 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Unsupported cache line flush size: %u", Caps.ProcessorClFlushSize);
|
---|
| 722 | pVM->nem.s.cCacheLineFlushShift = Caps.ProcessorClFlushSize;
|
---|
[70944] | 723 |
|
---|
| 724 | /*
|
---|
| 725 | * See if they've added more properties that we're not aware of.
|
---|
| 726 | */
|
---|
| 727 | /** @todo RECHECK: WHV_CAPABILITY_CODE typedef. */
|
---|
| 728 | if (!IsDebuggerPresent()) /* Too noisy when in debugger, so skip. */
|
---|
| 729 | {
|
---|
| 730 | static const struct
|
---|
| 731 | {
|
---|
| 732 | uint32_t iMin, iMax; } s_aUnknowns[] =
|
---|
| 733 | {
|
---|
[72300] | 734 | { 0x0004, 0x000f },
|
---|
[70944] | 735 | { 0x1003, 0x100f },
|
---|
| 736 | { 0x2000, 0x200f },
|
---|
| 737 | { 0x3000, 0x300f },
|
---|
| 738 | { 0x4000, 0x400f },
|
---|
| 739 | };
|
---|
| 740 | for (uint32_t j = 0; j < RT_ELEMENTS(s_aUnknowns); j++)
|
---|
| 741 | for (uint32_t i = s_aUnknowns[j].iMin; i <= s_aUnknowns[j].iMax; i++)
|
---|
| 742 | {
|
---|
| 743 | RT_ZERO(Caps);
|
---|
[71296] | 744 | hrc = WHvGetCapabilityWrapper((WHV_CAPABILITY_CODE)i, &Caps, sizeof(Caps));
|
---|
[70944] | 745 | if (SUCCEEDED(hrc))
|
---|
| 746 | LogRel(("NEM: Warning! Unknown capability %#x returning: %.*Rhxs\n", i, sizeof(Caps), &Caps));
|
---|
| 747 | }
|
---|
| 748 | }
|
---|
| 749 |
|
---|
[72262] | 750 | /*
|
---|
| 751 | * For proper operation, we require CPUID exits.
|
---|
| 752 | */
|
---|
| 753 | if (!pVM->nem.s.fExtendedCpuIdExit)
|
---|
| 754 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Missing required extended CPUID exit support");
|
---|
[72306] | 755 | if (!pVM->nem.s.fExtendedMsrExit)
|
---|
| 756 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Missing required extended MSR exit support");
|
---|
[72473] | 757 | if (!pVM->nem.s.fExtendedXcptExit)
|
---|
| 758 | return RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED, "Missing required extended exception exit support");
|
---|
[72262] | 759 |
|
---|
[70944] | 760 | #undef NEM_LOG_REL_CAP_EX
|
---|
| 761 | #undef NEM_LOG_REL_CAP_SUB_EX
|
---|
| 762 | #undef NEM_LOG_REL_CAP_SUB
|
---|
| 763 | return VINF_SUCCESS;
|
---|
| 764 | }
|
---|
| 765 |
|
---|
| 766 |
|
---|
[70945] | 767 | /**
|
---|
[71131] | 768 | * Used to fill in g_IoCtlGetHvPartitionId.
|
---|
| 769 | */
|
---|
| 770 | static NTSTATUS WINAPI
|
---|
| 771 | nemR3WinIoctlDetector_GetHvPartitionId(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
|
---|
| 772 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
|
---|
| 773 | PVOID pvOutput, ULONG cbOutput)
|
---|
| 774 | {
|
---|
| 775 | AssertLogRelMsgReturn(hFile == NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, ("hFile=%p\n", hFile), STATUS_INVALID_PARAMETER_1);
|
---|
| 776 | RT_NOREF(hEvt); RT_NOREF(pfnApcCallback); RT_NOREF(pvApcCtx);
|
---|
| 777 | AssertLogRelMsgReturn(RT_VALID_PTR(pIos), ("pIos=%p\n", pIos), STATUS_INVALID_PARAMETER_5);
|
---|
| 778 | AssertLogRelMsgReturn(cbInput == 0, ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_8);
|
---|
| 779 | RT_NOREF(pvInput);
|
---|
| 780 |
|
---|
| 781 | AssertLogRelMsgReturn(RT_VALID_PTR(pvOutput), ("pvOutput=%p\n", pvOutput), STATUS_INVALID_PARAMETER_9);
|
---|
| 782 | AssertLogRelMsgReturn(cbOutput == sizeof(HV_PARTITION_ID), ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_10);
|
---|
| 783 | *(HV_PARTITION_ID *)pvOutput = NEM_WIN_IOCTL_DETECTOR_FAKE_PARTITION_ID;
|
---|
| 784 |
|
---|
| 785 | g_IoCtlGetHvPartitionId.cbInput = cbInput;
|
---|
| 786 | g_IoCtlGetHvPartitionId.cbOutput = cbOutput;
|
---|
| 787 | g_IoCtlGetHvPartitionId.uFunction = uFunction;
|
---|
| 788 |
|
---|
| 789 | return STATUS_SUCCESS;
|
---|
| 790 | }
|
---|
| 791 |
|
---|
| 792 |
|
---|
| 793 | /**
|
---|
| 794 | * Used to fill in g_IoCtlStartVirtualProcessor.
|
---|
| 795 | */
|
---|
| 796 | static NTSTATUS WINAPI
|
---|
| 797 | nemR3WinIoctlDetector_StartVirtualProcessor(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
|
---|
| 798 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
|
---|
| 799 | PVOID pvOutput, ULONG cbOutput)
|
---|
| 800 | {
|
---|
| 801 | AssertLogRelMsgReturn(hFile == NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, ("hFile=%p\n", hFile), STATUS_INVALID_PARAMETER_1);
|
---|
| 802 | RT_NOREF(hEvt); RT_NOREF(pfnApcCallback); RT_NOREF(pvApcCtx);
|
---|
| 803 | AssertLogRelMsgReturn(RT_VALID_PTR(pIos), ("pIos=%p\n", pIos), STATUS_INVALID_PARAMETER_5);
|
---|
| 804 | AssertLogRelMsgReturn(cbInput == sizeof(HV_VP_INDEX), ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_8);
|
---|
| 805 | AssertLogRelMsgReturn(RT_VALID_PTR(pvInput), ("pvInput=%p\n", pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 806 | AssertLogRelMsgReturn(*(HV_VP_INDEX *)pvInput == NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX,
|
---|
| 807 | ("*piCpu=%u\n", *(HV_VP_INDEX *)pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 808 | AssertLogRelMsgReturn(cbOutput == 0, ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_10);
|
---|
| 809 | RT_NOREF(pvOutput);
|
---|
| 810 |
|
---|
| 811 | g_IoCtlStartVirtualProcessor.cbInput = cbInput;
|
---|
| 812 | g_IoCtlStartVirtualProcessor.cbOutput = cbOutput;
|
---|
| 813 | g_IoCtlStartVirtualProcessor.uFunction = uFunction;
|
---|
| 814 |
|
---|
| 815 | return STATUS_SUCCESS;
|
---|
| 816 | }
|
---|
| 817 |
|
---|
| 818 |
|
---|
| 819 | /**
|
---|
| 820 | * Used to fill in g_IoCtlStartVirtualProcessor.
|
---|
| 821 | */
|
---|
| 822 | static NTSTATUS WINAPI
|
---|
| 823 | nemR3WinIoctlDetector_StopVirtualProcessor(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
|
---|
| 824 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
|
---|
| 825 | PVOID pvOutput, ULONG cbOutput)
|
---|
| 826 | {
|
---|
| 827 | AssertLogRelMsgReturn(hFile == NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, ("hFile=%p\n", hFile), STATUS_INVALID_PARAMETER_1);
|
---|
| 828 | RT_NOREF(hEvt); RT_NOREF(pfnApcCallback); RT_NOREF(pvApcCtx);
|
---|
| 829 | AssertLogRelMsgReturn(RT_VALID_PTR(pIos), ("pIos=%p\n", pIos), STATUS_INVALID_PARAMETER_5);
|
---|
| 830 | AssertLogRelMsgReturn(cbInput == sizeof(HV_VP_INDEX), ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_8);
|
---|
| 831 | AssertLogRelMsgReturn(RT_VALID_PTR(pvInput), ("pvInput=%p\n", pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 832 | AssertLogRelMsgReturn(*(HV_VP_INDEX *)pvInput == NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX,
|
---|
| 833 | ("*piCpu=%u\n", *(HV_VP_INDEX *)pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 834 | AssertLogRelMsgReturn(cbOutput == 0, ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_10);
|
---|
| 835 | RT_NOREF(pvOutput);
|
---|
| 836 |
|
---|
| 837 | g_IoCtlStopVirtualProcessor.cbInput = cbInput;
|
---|
| 838 | g_IoCtlStopVirtualProcessor.cbOutput = cbOutput;
|
---|
| 839 | g_IoCtlStopVirtualProcessor.uFunction = uFunction;
|
---|
| 840 |
|
---|
| 841 | return STATUS_SUCCESS;
|
---|
| 842 | }
|
---|
| 843 |
|
---|
| 844 |
|
---|
| 845 | /**
|
---|
| 846 | * Used to fill in g_IoCtlMessageSlotHandleAndGetNext
|
---|
| 847 | */
|
---|
| 848 | static NTSTATUS WINAPI
|
---|
| 849 | nemR3WinIoctlDetector_MessageSlotHandleAndGetNext(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
|
---|
| 850 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
|
---|
| 851 | PVOID pvOutput, ULONG cbOutput)
|
---|
| 852 | {
|
---|
| 853 | AssertLogRelMsgReturn(hFile == NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, ("hFile=%p\n", hFile), STATUS_INVALID_PARAMETER_1);
|
---|
| 854 | RT_NOREF(hEvt); RT_NOREF(pfnApcCallback); RT_NOREF(pvApcCtx);
|
---|
| 855 | AssertLogRelMsgReturn(RT_VALID_PTR(pIos), ("pIos=%p\n", pIos), STATUS_INVALID_PARAMETER_5);
|
---|
| 856 |
|
---|
[74517] | 857 | if (g_uBuildNo >= 17758)
|
---|
| 858 | {
|
---|
| 859 | /* No timeout since about build 17758, it's now always an infinite wait. So, a somewhat compatible change. */
|
---|
| 860 | AssertLogRelMsgReturn(cbInput == RT_UOFFSETOF(VID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT, cMillies),
|
---|
| 861 | ("cbInput=%#x\n", cbInput),
|
---|
| 862 | STATUS_INVALID_PARAMETER_8);
|
---|
| 863 | AssertLogRelMsgReturn(RT_VALID_PTR(pvInput), ("pvInput=%p\n", pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 864 | PCVID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT pVidIn = (PCVID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT)pvInput;
|
---|
| 865 | AssertLogRelMsgReturn( pVidIn->iCpu == NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX
|
---|
| 866 | && pVidIn->fFlags == VID_MSHAGN_F_HANDLE_MESSAGE,
|
---|
| 867 | ("iCpu=%u fFlags=%#x cMillies=%#x\n", pVidIn->iCpu, pVidIn->fFlags, pVidIn->cMillies),
|
---|
| 868 | STATUS_INVALID_PARAMETER_9);
|
---|
| 869 | AssertLogRelMsgReturn(cbOutput == 0, ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_10);
|
---|
| 870 | }
|
---|
| 871 | else
|
---|
| 872 | {
|
---|
| 873 | AssertLogRelMsgReturn(cbInput == sizeof(VID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT), ("cbInput=%#x\n", cbInput),
|
---|
| 874 | STATUS_INVALID_PARAMETER_8);
|
---|
| 875 | AssertLogRelMsgReturn(RT_VALID_PTR(pvInput), ("pvInput=%p\n", pvInput), STATUS_INVALID_PARAMETER_9);
|
---|
| 876 | PCVID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT pVidIn = (PCVID_IOCTL_INPUT_MESSAGE_SLOT_HANDLE_AND_GET_NEXT)pvInput;
|
---|
| 877 | AssertLogRelMsgReturn( pVidIn->iCpu == NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX
|
---|
| 878 | && pVidIn->fFlags == VID_MSHAGN_F_HANDLE_MESSAGE
|
---|
| 879 | && pVidIn->cMillies == NEM_WIN_IOCTL_DETECTOR_FAKE_TIMEOUT,
|
---|
| 880 | ("iCpu=%u fFlags=%#x cMillies=%#x\n", pVidIn->iCpu, pVidIn->fFlags, pVidIn->cMillies),
|
---|
| 881 | STATUS_INVALID_PARAMETER_9);
|
---|
| 882 | AssertLogRelMsgReturn(cbOutput == 0, ("cbInput=%#x\n", cbInput), STATUS_INVALID_PARAMETER_10);
|
---|
| 883 | RT_NOREF(pvOutput);
|
---|
| 884 | }
|
---|
[71131] | 885 |
|
---|
| 886 | g_IoCtlMessageSlotHandleAndGetNext.cbInput = cbInput;
|
---|
| 887 | g_IoCtlMessageSlotHandleAndGetNext.cbOutput = cbOutput;
|
---|
| 888 | g_IoCtlMessageSlotHandleAndGetNext.uFunction = uFunction;
|
---|
| 889 |
|
---|
| 890 | return STATUS_SUCCESS;
|
---|
| 891 | }
|
---|
| 892 |
|
---|
| 893 |
|
---|
| 894 | #ifdef LOG_ENABLED
|
---|
| 895 | /**
|
---|
| 896 | * Used to fill in what g_pIoCtlDetectForLogging points to.
|
---|
| 897 | */
|
---|
| 898 | static NTSTATUS WINAPI nemR3WinIoctlDetector_ForLogging(HANDLE hFile, HANDLE hEvt, PIO_APC_ROUTINE pfnApcCallback, PVOID pvApcCtx,
|
---|
| 899 | PIO_STATUS_BLOCK pIos, ULONG uFunction, PVOID pvInput, ULONG cbInput,
|
---|
| 900 | PVOID pvOutput, ULONG cbOutput)
|
---|
| 901 | {
|
---|
| 902 | RT_NOREF(hFile, hEvt, pfnApcCallback, pvApcCtx, pIos, pvInput, pvOutput);
|
---|
| 903 |
|
---|
| 904 | g_pIoCtlDetectForLogging->cbInput = cbInput;
|
---|
| 905 | g_pIoCtlDetectForLogging->cbOutput = cbOutput;
|
---|
| 906 | g_pIoCtlDetectForLogging->uFunction = uFunction;
|
---|
| 907 |
|
---|
| 908 | return STATUS_SUCCESS;
|
---|
| 909 | }
|
---|
| 910 | #endif
|
---|
| 911 |
|
---|
| 912 |
|
---|
| 913 | /**
|
---|
| 914 | * Worker for nemR3NativeInit that detect I/O control function numbers for VID.
|
---|
| 915 | *
|
---|
| 916 | * We use the function numbers directly in ring-0 and to name functions when
|
---|
| 917 | * logging NtDeviceIoControlFile calls.
|
---|
| 918 | *
|
---|
| 919 | * @note We could alternatively do this by disassembling the respective
|
---|
| 920 | * functions, but hooking NtDeviceIoControlFile and making fake calls
|
---|
| 921 | * more easily provides the desired information.
|
---|
| 922 | *
|
---|
| 923 | * @returns VBox status code.
|
---|
| 924 | * @param pVM The cross context VM structure. Will set I/O
|
---|
| 925 | * control info members.
|
---|
| 926 | * @param pErrInfo Where to always return error info.
|
---|
| 927 | */
|
---|
| 928 | static int nemR3WinInitDiscoverIoControlProperties(PVM pVM, PRTERRINFO pErrInfo)
|
---|
| 929 | {
|
---|
| 930 | /*
|
---|
| 931 | * Probe the I/O control information for select VID APIs so we can use
|
---|
| 932 | * them directly from ring-0 and better log them.
|
---|
| 933 | *
|
---|
| 934 | */
|
---|
| 935 | decltype(NtDeviceIoControlFile) * const pfnOrg = *g_ppfnVidNtDeviceIoControlFile;
|
---|
| 936 |
|
---|
[74517] | 937 | /* VidGetHvPartitionId - must work due to memory. */
|
---|
[71131] | 938 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_GetHvPartitionId;
|
---|
| 939 | HV_PARTITION_ID idHvPartition = HV_PARTITION_ID_INVALID;
|
---|
| 940 | BOOL fRet = g_pfnVidGetHvPartitionId(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, &idHvPartition);
|
---|
| 941 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
| 942 | AssertReturn(fRet && idHvPartition == NEM_WIN_IOCTL_DETECTOR_FAKE_PARTITION_ID && g_IoCtlGetHvPartitionId.uFunction != 0,
|
---|
| 943 | RTErrInfoSetF(pErrInfo, VERR_NEM_INIT_FAILED,
|
---|
| 944 | "Problem figuring out VidGetHvPartitionId: fRet=%u idHvPartition=%#x dwErr=%u",
|
---|
| 945 | fRet, idHvPartition, GetLastError()) );
|
---|
| 946 | LogRel(("NEM: VidGetHvPartitionId -> fun:%#x in:%#x out:%#x\n",
|
---|
| 947 | g_IoCtlGetHvPartitionId.uFunction, g_IoCtlGetHvPartitionId.cbInput, g_IoCtlGetHvPartitionId.cbOutput));
|
---|
| 948 |
|
---|
[74517] | 949 | int rcRet = VINF_SUCCESS;
|
---|
[71131] | 950 | /* VidStartVirtualProcessor */
|
---|
| 951 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_StartVirtualProcessor;
|
---|
| 952 | fRet = g_pfnVidStartVirtualProcessor(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX);
|
---|
| 953 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
[74517] | 954 | AssertStmt(fRet && g_IoCtlStartVirtualProcessor.uFunction != 0,
|
---|
| 955 | rcRet = RTERRINFO_LOG_REL_SET_F(pErrInfo, VERR_NEM_RING3_ONLY,
|
---|
| 956 | "Problem figuring out VidStartVirtualProcessor: fRet=%u dwErr=%u",
|
---|
| 957 | fRet, GetLastError()) );
|
---|
[71131] | 958 | LogRel(("NEM: VidStartVirtualProcessor -> fun:%#x in:%#x out:%#x\n", g_IoCtlStartVirtualProcessor.uFunction,
|
---|
| 959 | g_IoCtlStartVirtualProcessor.cbInput, g_IoCtlStartVirtualProcessor.cbOutput));
|
---|
| 960 |
|
---|
| 961 | /* VidStopVirtualProcessor */
|
---|
| 962 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_StopVirtualProcessor;
|
---|
| 963 | fRet = g_pfnVidStopVirtualProcessor(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX);
|
---|
| 964 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
[74517] | 965 | AssertStmt(fRet && g_IoCtlStopVirtualProcessor.uFunction != 0,
|
---|
| 966 | rcRet = RTERRINFO_LOG_REL_SET_F(pErrInfo, VERR_NEM_RING3_ONLY,
|
---|
| 967 | "Problem figuring out VidStopVirtualProcessor: fRet=%u dwErr=%u",
|
---|
| 968 | fRet, GetLastError()) );
|
---|
[71131] | 969 | LogRel(("NEM: VidStopVirtualProcessor -> fun:%#x in:%#x out:%#x\n", g_IoCtlStopVirtualProcessor.uFunction,
|
---|
| 970 | g_IoCtlStopVirtualProcessor.cbInput, g_IoCtlStopVirtualProcessor.cbOutput));
|
---|
| 971 |
|
---|
| 972 | /* VidMessageSlotHandleAndGetNext */
|
---|
| 973 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_MessageSlotHandleAndGetNext;
|
---|
| 974 | fRet = g_pfnVidMessageSlotHandleAndGetNext(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE,
|
---|
| 975 | NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX, VID_MSHAGN_F_HANDLE_MESSAGE,
|
---|
| 976 | NEM_WIN_IOCTL_DETECTOR_FAKE_TIMEOUT);
|
---|
| 977 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
[74517] | 978 | AssertStmt(fRet && g_IoCtlMessageSlotHandleAndGetNext.uFunction != 0,
|
---|
| 979 | rcRet = RTERRINFO_LOG_REL_SET_F(pErrInfo, VERR_NEM_RING3_ONLY,
|
---|
| 980 | "Problem figuring out VidMessageSlotHandleAndGetNext: fRet=%u dwErr=%u",
|
---|
| 981 | fRet, GetLastError()) );
|
---|
[71131] | 982 | LogRel(("NEM: VidMessageSlotHandleAndGetNext -> fun:%#x in:%#x out:%#x\n",
|
---|
| 983 | g_IoCtlMessageSlotHandleAndGetNext.uFunction, g_IoCtlMessageSlotHandleAndGetNext.cbInput,
|
---|
| 984 | g_IoCtlMessageSlotHandleAndGetNext.cbOutput));
|
---|
| 985 |
|
---|
| 986 | #ifdef LOG_ENABLED
|
---|
| 987 | /* The following are only for logging: */
|
---|
| 988 | union
|
---|
| 989 | {
|
---|
| 990 | VID_MAPPED_MESSAGE_SLOT MapSlot;
|
---|
| 991 | HV_REGISTER_NAME Name;
|
---|
| 992 | HV_REGISTER_VALUE Value;
|
---|
| 993 | } uBuf;
|
---|
| 994 |
|
---|
| 995 | /* VidMessageSlotMap */
|
---|
| 996 | g_pIoCtlDetectForLogging = &g_IoCtlMessageSlotMap;
|
---|
| 997 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_ForLogging;
|
---|
| 998 | fRet = g_pfnVidMessageSlotMap(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, &uBuf.MapSlot, NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX);
|
---|
| 999 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
| 1000 | Assert(fRet);
|
---|
| 1001 | LogRel(("NEM: VidMessageSlotMap -> fun:%#x in:%#x out:%#x\n", g_pIoCtlDetectForLogging->uFunction,
|
---|
| 1002 | g_pIoCtlDetectForLogging->cbInput, g_pIoCtlDetectForLogging->cbOutput));
|
---|
| 1003 |
|
---|
| 1004 | /* VidGetVirtualProcessorState */
|
---|
| 1005 | uBuf.Name = HvRegisterExplicitSuspend;
|
---|
| 1006 | g_pIoCtlDetectForLogging = &g_IoCtlGetVirtualProcessorState;
|
---|
| 1007 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_ForLogging;
|
---|
| 1008 | fRet = g_pfnVidGetVirtualProcessorState(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX,
|
---|
| 1009 | &uBuf.Name, 1, &uBuf.Value);
|
---|
| 1010 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
| 1011 | Assert(fRet);
|
---|
| 1012 | LogRel(("NEM: VidGetVirtualProcessorState -> fun:%#x in:%#x out:%#x\n", g_pIoCtlDetectForLogging->uFunction,
|
---|
| 1013 | g_pIoCtlDetectForLogging->cbInput, g_pIoCtlDetectForLogging->cbOutput));
|
---|
| 1014 |
|
---|
| 1015 | /* VidSetVirtualProcessorState */
|
---|
| 1016 | uBuf.Name = HvRegisterExplicitSuspend;
|
---|
| 1017 | g_pIoCtlDetectForLogging = &g_IoCtlSetVirtualProcessorState;
|
---|
| 1018 | *g_ppfnVidNtDeviceIoControlFile = nemR3WinIoctlDetector_ForLogging;
|
---|
| 1019 | fRet = g_pfnVidSetVirtualProcessorState(NEM_WIN_IOCTL_DETECTOR_FAKE_HANDLE, NEM_WIN_IOCTL_DETECTOR_FAKE_VP_INDEX,
|
---|
| 1020 | &uBuf.Name, 1, &uBuf.Value);
|
---|
| 1021 | *g_ppfnVidNtDeviceIoControlFile = pfnOrg;
|
---|
| 1022 | Assert(fRet);
|
---|
| 1023 | LogRel(("NEM: VidSetVirtualProcessorState -> fun:%#x in:%#x out:%#x\n", g_pIoCtlDetectForLogging->uFunction,
|
---|
| 1024 | g_pIoCtlDetectForLogging->cbInput, g_pIoCtlDetectForLogging->cbOutput));
|
---|
| 1025 |
|
---|
| 1026 | g_pIoCtlDetectForLogging = NULL;
|
---|
| 1027 | #endif
|
---|
| 1028 |
|
---|
| 1029 | /* Done. */
|
---|
| 1030 | pVM->nem.s.IoCtlGetHvPartitionId = g_IoCtlGetHvPartitionId;
|
---|
| 1031 | pVM->nem.s.IoCtlStartVirtualProcessor = g_IoCtlStartVirtualProcessor;
|
---|
| 1032 | pVM->nem.s.IoCtlStopVirtualProcessor = g_IoCtlStopVirtualProcessor;
|
---|
| 1033 | pVM->nem.s.IoCtlMessageSlotHandleAndGetNext = g_IoCtlMessageSlotHandleAndGetNext;
|
---|
[74517] | 1034 | return rcRet;
|
---|
[71131] | 1035 | }
|
---|
| 1036 |
|
---|
| 1037 |
|
---|
| 1038 | /**
|
---|
[70945] | 1039 | * Creates and sets up a Hyper-V (exo) partition.
|
---|
| 1040 | *
|
---|
| 1041 | * @returns VBox status code.
|
---|
| 1042 | * @param pVM The cross context VM structure.
|
---|
| 1043 | * @param pErrInfo Where to always return error info.
|
---|
| 1044 | */
|
---|
| 1045 | static int nemR3WinInitCreatePartition(PVM pVM, PRTERRINFO pErrInfo)
|
---|
| 1046 | {
|
---|
| 1047 | AssertReturn(!pVM->nem.s.hPartition, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
|
---|
| 1048 | AssertReturn(!pVM->nem.s.hPartitionDevice, RTErrInfoSet(pErrInfo, VERR_WRONG_ORDER, "Wrong initalization order"));
|
---|
[70944] | 1049 |
|
---|
[70945] | 1050 | /*
|
---|
| 1051 | * Create the partition.
|
---|
| 1052 | */
|
---|
| 1053 | WHV_PARTITION_HANDLE hPartition;
|
---|
| 1054 | HRESULT hrc = WHvCreatePartition(&hPartition);
|
---|
| 1055 | if (FAILED(hrc))
|
---|
[70977] | 1056 | return RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED, "WHvCreatePartition failed with %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1057 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1058 |
|
---|
| 1059 | int rc;
|
---|
| 1060 |
|
---|
| 1061 | /*
|
---|
| 1062 | * Set partition properties, most importantly the CPU count.
|
---|
| 1063 | */
|
---|
| 1064 | /**
|
---|
[71031] | 1065 | * @todo Someone at Microsoft please explain another weird API:
|
---|
[70945] | 1066 | * - Why this API doesn't take the WHV_PARTITION_PROPERTY_CODE value as an
|
---|
| 1067 | * argument rather than as part of the struct. That is so weird if you've
|
---|
| 1068 | * used any other NT or windows API, including WHvGetCapability().
|
---|
| 1069 | * - Why use PVOID when WHV_PARTITION_PROPERTY is what's expected. We
|
---|
| 1070 | * technically only need 9 bytes for setting/getting
|
---|
| 1071 | * WHVPartitionPropertyCodeProcessorClFlushSize, but the API insists on 16. */
|
---|
| 1072 | WHV_PARTITION_PROPERTY Property;
|
---|
| 1073 | RT_ZERO(Property);
|
---|
| 1074 | Property.ProcessorCount = pVM->cCpus;
|
---|
[72300] | 1075 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorCount, &Property, sizeof(Property));
|
---|
[70945] | 1076 | if (SUCCEEDED(hrc))
|
---|
| 1077 | {
|
---|
| 1078 | RT_ZERO(Property);
|
---|
[72262] | 1079 | Property.ExtendedVmExits.X64CpuidExit = pVM->nem.s.fExtendedCpuIdExit; /** @todo Register fixed results and restrict cpuid exits */
|
---|
[72306] | 1080 | Property.ExtendedVmExits.X64MsrExit = pVM->nem.s.fExtendedMsrExit;
|
---|
[70945] | 1081 | Property.ExtendedVmExits.ExceptionExit = pVM->nem.s.fExtendedXcptExit;
|
---|
[72300] | 1082 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeExtendedVmExits, &Property, sizeof(Property));
|
---|
[70945] | 1083 | if (SUCCEEDED(hrc))
|
---|
| 1084 | {
|
---|
| 1085 | /*
|
---|
| 1086 | * We'll continue setup in nemR3NativeInitAfterCPUM.
|
---|
| 1087 | */
|
---|
| 1088 | pVM->nem.s.fCreatedEmts = false;
|
---|
| 1089 | pVM->nem.s.hPartition = hPartition;
|
---|
| 1090 | LogRel(("NEM: Created partition %p.\n", hPartition));
|
---|
| 1091 | return VINF_SUCCESS;
|
---|
| 1092 | }
|
---|
| 1093 |
|
---|
| 1094 | rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
|
---|
| 1095 | "Failed setting WHvPartitionPropertyCodeExtendedVmExits to %'#RX64: %Rhrc",
|
---|
| 1096 | Property.ExtendedVmExits.AsUINT64, hrc);
|
---|
| 1097 | }
|
---|
| 1098 | else
|
---|
| 1099 | rc = RTErrInfoSetF(pErrInfo, VERR_NEM_VM_CREATE_FAILED,
|
---|
[70977] | 1100 | "Failed setting WHvPartitionPropertyCodeProcessorCount to %u: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1101 | pVM->cCpus, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1102 | WHvDeletePartition(hPartition);
|
---|
| 1103 |
|
---|
| 1104 | Assert(!pVM->nem.s.hPartitionDevice);
|
---|
| 1105 | Assert(!pVM->nem.s.hPartition);
|
---|
| 1106 | return rc;
|
---|
| 1107 | }
|
---|
| 1108 |
|
---|
| 1109 |
|
---|
| 1110 | /**
|
---|
[72419] | 1111 | * Makes sure APIC and firmware will not allow X2APIC mode.
|
---|
| 1112 | *
|
---|
| 1113 | * This is rather ugly.
|
---|
| 1114 | *
|
---|
| 1115 | * @returns VBox status code
|
---|
| 1116 | * @param pVM The cross context VM structure.
|
---|
| 1117 | */
|
---|
| 1118 | static int nemR3WinDisableX2Apic(PVM pVM)
|
---|
| 1119 | {
|
---|
| 1120 | /*
|
---|
| 1121 | * First make sure the 'Mode' config value of the APIC isn't set to X2APIC.
|
---|
| 1122 | * This defaults to APIC, so no need to change unless it's X2APIC.
|
---|
| 1123 | */
|
---|
| 1124 | PCFGMNODE pCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/Devices/apic/0/Config");
|
---|
| 1125 | if (pCfg)
|
---|
| 1126 | {
|
---|
| 1127 | uint8_t bMode = 0;
|
---|
| 1128 | int rc = CFGMR3QueryU8(pCfg, "Mode", &bMode);
|
---|
| 1129 | AssertLogRelMsgReturn(RT_SUCCESS(rc) || rc == VERR_CFGM_VALUE_NOT_FOUND, ("%Rrc\n", rc), rc);
|
---|
| 1130 | if (RT_SUCCESS(rc) && bMode == PDMAPICMODE_X2APIC)
|
---|
| 1131 | {
|
---|
| 1132 | LogRel(("NEM: Adjusting APIC configuration from X2APIC to APIC max mode. X2APIC is not supported by the WinHvPlatform API!\n"));
|
---|
| 1133 | LogRel(("NEM: Disable Hyper-V if you need X2APIC for your guests!\n"));
|
---|
| 1134 | rc = CFGMR3RemoveValue(pCfg, "Mode");
|
---|
| 1135 | rc = CFGMR3InsertInteger(pCfg, "Mode", PDMAPICMODE_APIC);
|
---|
| 1136 | AssertLogRelRCReturn(rc, rc);
|
---|
| 1137 | }
|
---|
| 1138 | }
|
---|
| 1139 |
|
---|
| 1140 | /*
|
---|
| 1141 | * Now the firmwares.
|
---|
| 1142 | * These also defaults to APIC and only needs adjusting if configured to X2APIC (2).
|
---|
| 1143 | */
|
---|
| 1144 | static const char * const s_apszFirmwareConfigs[] =
|
---|
| 1145 | {
|
---|
| 1146 | "/Devices/efi/0/Config",
|
---|
| 1147 | "/Devices/pcbios/0/Config",
|
---|
| 1148 | };
|
---|
| 1149 | for (unsigned i = 0; i < RT_ELEMENTS(s_apszFirmwareConfigs); i++)
|
---|
| 1150 | {
|
---|
| 1151 | pCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/Devices/APIC/0/Config");
|
---|
| 1152 | if (pCfg)
|
---|
| 1153 | {
|
---|
| 1154 | uint8_t bMode = 0;
|
---|
| 1155 | int rc = CFGMR3QueryU8(pCfg, "APIC", &bMode);
|
---|
| 1156 | AssertLogRelMsgReturn(RT_SUCCESS(rc) || rc == VERR_CFGM_VALUE_NOT_FOUND, ("%Rrc\n", rc), rc);
|
---|
| 1157 | if (RT_SUCCESS(rc) && bMode == 2)
|
---|
| 1158 | {
|
---|
| 1159 | LogRel(("NEM: Adjusting %s/Mode from 2 (X2APIC) to 1 (APIC).\n", s_apszFirmwareConfigs[i]));
|
---|
| 1160 | rc = CFGMR3RemoveValue(pCfg, "APIC");
|
---|
| 1161 | rc = CFGMR3InsertInteger(pCfg, "APIC", 1);
|
---|
| 1162 | AssertLogRelRCReturn(rc, rc);
|
---|
| 1163 | }
|
---|
| 1164 | }
|
---|
| 1165 | }
|
---|
| 1166 |
|
---|
| 1167 | return VINF_SUCCESS;
|
---|
| 1168 | }
|
---|
| 1169 |
|
---|
| 1170 |
|
---|
| 1171 | /**
|
---|
[70945] | 1172 | * Try initialize the native API.
|
---|
| 1173 | *
|
---|
| 1174 | * This may only do part of the job, more can be done in
|
---|
| 1175 | * nemR3NativeInitAfterCPUM() and nemR3NativeInitCompleted().
|
---|
| 1176 | *
|
---|
| 1177 | * @returns VBox status code.
|
---|
| 1178 | * @param pVM The cross context VM structure.
|
---|
| 1179 | * @param fFallback Whether we're in fallback mode or use-NEM mode. In
|
---|
| 1180 | * the latter we'll fail if we cannot initialize.
|
---|
| 1181 | * @param fForced Whether the HMForced flag is set and we should
|
---|
| 1182 | * fail if we cannot initialize.
|
---|
| 1183 | */
|
---|
[70918] | 1184 | int nemR3NativeInit(PVM pVM, bool fFallback, bool fForced)
|
---|
| 1185 | {
|
---|
[71296] | 1186 | g_uBuildNo = RTSystemGetNtBuildNo();
|
---|
| 1187 |
|
---|
[70942] | 1188 | /*
|
---|
[72392] | 1189 | * Some state init.
|
---|
| 1190 | */
|
---|
[73182] | 1191 | pVM->nem.s.fA20Enabled = true;
|
---|
[73282] | 1192 | #if 0
|
---|
[72392] | 1193 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
---|
| 1194 | {
|
---|
| 1195 | PNEMCPU pNemCpu = &pVM->aCpus[iCpu].nem.s;
|
---|
| 1196 | }
|
---|
[73282] | 1197 | #endif
|
---|
[72392] | 1198 |
|
---|
| 1199 | /*
|
---|
[70942] | 1200 | * Error state.
|
---|
[70954] | 1201 | * The error message will be non-empty on failure and 'rc' will be set too.
|
---|
[70942] | 1202 | */
|
---|
| 1203 | RTERRINFOSTATIC ErrInfo;
|
---|
| 1204 | PRTERRINFO pErrInfo = RTErrInfoInitStatic(&ErrInfo);
|
---|
[70954] | 1205 | int rc = nemR3WinInitProbeAndLoad(fForced, pErrInfo);
|
---|
| 1206 | if (RT_SUCCESS(rc))
|
---|
[70942] | 1207 | {
|
---|
[70954] | 1208 | /*
|
---|
| 1209 | * Check the capabilties of the hypervisor, starting with whether it's present.
|
---|
| 1210 | */
|
---|
| 1211 | rc = nemR3WinInitCheckCapabilities(pVM, pErrInfo);
|
---|
| 1212 | if (RT_SUCCESS(rc))
|
---|
[70942] | 1213 | {
|
---|
| 1214 | /*
|
---|
[71131] | 1215 | * Discover the VID I/O control function numbers we need.
|
---|
[70942] | 1216 | */
|
---|
[71131] | 1217 | rc = nemR3WinInitDiscoverIoControlProperties(pVM, pErrInfo);
|
---|
[74517] | 1218 | if (rc == VERR_NEM_RING3_ONLY)
|
---|
| 1219 | {
|
---|
| 1220 | if (pVM->nem.s.fUseRing0Runloop)
|
---|
| 1221 | {
|
---|
| 1222 | LogRel(("NEM: Disabling UseRing0Runloop.\n"));
|
---|
| 1223 | pVM->nem.s.fUseRing0Runloop = false;
|
---|
| 1224 | }
|
---|
| 1225 | rc = VINF_SUCCESS;
|
---|
| 1226 | }
|
---|
[70954] | 1227 | if (RT_SUCCESS(rc))
|
---|
[70942] | 1228 | {
|
---|
[71075] | 1229 | /*
|
---|
[71131] | 1230 | * Check out our ring-0 capabilities.
|
---|
[71075] | 1231 | */
|
---|
[71131] | 1232 | rc = SUPR3CallVMMR0Ex(pVM->pVMR0, 0 /*idCpu*/, VMMR0_DO_NEM_INIT_VM, 0, NULL);
|
---|
[71075] | 1233 | if (RT_SUCCESS(rc))
|
---|
| 1234 | {
|
---|
[71131] | 1235 | /*
|
---|
| 1236 | * Create and initialize a partition.
|
---|
| 1237 | */
|
---|
| 1238 | rc = nemR3WinInitCreatePartition(pVM, pErrInfo);
|
---|
| 1239 | if (RT_SUCCESS(rc))
|
---|
| 1240 | {
|
---|
| 1241 | VM_SET_MAIN_EXECUTION_ENGINE(pVM, VM_EXEC_ENGINE_NATIVE_API);
|
---|
| 1242 | Log(("NEM: Marked active!\n"));
|
---|
[72419] | 1243 | nemR3WinDisableX2Apic(pVM);
|
---|
[71293] | 1244 |
|
---|
| 1245 | /* Register release statistics */
|
---|
| 1246 | for (VMCPUID iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
---|
| 1247 | {
|
---|
| 1248 | PNEMCPU pNemCpu = &pVM->aCpus[iCpu].nem.s;
|
---|
| 1249 | STAMR3RegisterF(pVM, &pNemCpu->StatExitPortIo, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of port I/O exits", "/NEM/CPU%u/ExitPortIo", iCpu);
|
---|
| 1250 | STAMR3RegisterF(pVM, &pNemCpu->StatExitMemUnmapped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unmapped memory exits", "/NEM/CPU%u/ExitMemUnmapped", iCpu);
|
---|
| 1251 | STAMR3RegisterF(pVM, &pNemCpu->StatExitMemIntercept, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of intercepted memory exits", "/NEM/CPU%u/ExitMemIntercept", iCpu);
|
---|
| 1252 | STAMR3RegisterF(pVM, &pNemCpu->StatExitHalt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of HLT exits", "/NEM/CPU%u/ExitHalt", iCpu);
|
---|
[72207] | 1253 | STAMR3RegisterF(pVM, &pNemCpu->StatExitInterruptWindow, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of HLT exits", "/NEM/CPU%u/ExitInterruptWindow", iCpu);
|
---|
[72308] | 1254 | STAMR3RegisterF(pVM, &pNemCpu->StatExitCpuId, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of CPUID exits", "/NEM/CPU%u/ExitCpuId", iCpu);
|
---|
| 1255 | STAMR3RegisterF(pVM, &pNemCpu->StatExitMsr, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of MSR access exits", "/NEM/CPU%u/ExitMsr", iCpu);
|
---|
[72463] | 1256 | STAMR3RegisterF(pVM, &pNemCpu->StatExitException, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of exception exits", "/NEM/CPU%u/ExitException", iCpu);
|
---|
| 1257 | STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionBp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #BP exits", "/NEM/CPU%u/ExitExceptionBp", iCpu);
|
---|
| 1258 | STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionDb, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #DB exits", "/NEM/CPU%u/ExitExceptionDb", iCpu);
|
---|
| 1259 | STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of #UD exits", "/NEM/CPU%u/ExitExceptionUd", iCpu);
|
---|
| 1260 | STAMR3RegisterF(pVM, &pNemCpu->StatExitExceptionUdHandled, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of handled #UD exits", "/NEM/CPU%u/ExitExceptionUdHandled", iCpu);
|
---|
[72358] | 1261 | STAMR3RegisterF(pVM, &pNemCpu->StatExitUnrecoverable, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of unrecoverable exits", "/NEM/CPU%u/ExitUnrecoverable", iCpu);
|
---|
[71293] | 1262 | STAMR3RegisterF(pVM, &pNemCpu->StatGetMsgTimeout, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of get message timeouts/alerts", "/NEM/CPU%u/GetMsgTimeout", iCpu);
|
---|
| 1263 | STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuSuccess, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of successful CPU stops", "/NEM/CPU%u/StopCpuSuccess", iCpu);
|
---|
| 1264 | STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPending, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stops", "/NEM/CPU%u/StopCpuPending", iCpu);
|
---|
[72690] | 1265 | STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingAlerts,STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pending CPU stop alerts", "/NEM/CPU%u/StopCpuPendingAlerts", iCpu);
|
---|
[72484] | 1266 | STAMR3RegisterF(pVM, &pNemCpu->StatStopCpuPendingOdd, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of odd pending CPU stops (see code)", "/NEM/CPU%u/StopCpuPendingOdd", iCpu);
|
---|
[71293] | 1267 | STAMR3RegisterF(pVM, &pNemCpu->StatCancelChangedState, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel changed state", "/NEM/CPU%u/CancelChangedState", iCpu);
|
---|
| 1268 | STAMR3RegisterF(pVM, &pNemCpu->StatCancelAlertedThread, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel alerted EMT", "/NEM/CPU%u/CancelAlertedEMT", iCpu);
|
---|
| 1269 | STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPre, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of pre execution FF breaks", "/NEM/CPU%u/BreakOnFFPre", iCpu);
|
---|
| 1270 | STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnFFPost, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of post execution FF breaks", "/NEM/CPU%u/BreakOnFFPost", iCpu);
|
---|
| 1271 | STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnCancel, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of cancel execution breaks", "/NEM/CPU%u/BreakOnCancel", iCpu);
|
---|
| 1272 | STAMR3RegisterF(pVM, &pNemCpu->StatBreakOnStatus, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of status code breaks", "/NEM/CPU%u/BreakOnStatus", iCpu);
|
---|
[72484] | 1273 | STAMR3RegisterF(pVM, &pNemCpu->StatImportOnDemand, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of on-demand state imports", "/NEM/CPU%u/ImportOnDemand", iCpu);
|
---|
[72488] | 1274 | STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturn, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of state imports on loop return", "/NEM/CPU%u/ImportOnReturn", iCpu);
|
---|
| 1275 | STAMR3RegisterF(pVM, &pNemCpu->StatImportOnReturnSkipped, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of skipped state imports on loop return", "/NEM/CPU%u/ImportOnReturnSkipped", iCpu);
|
---|
[72526] | 1276 | STAMR3RegisterF(pVM, &pNemCpu->StatQueryCpuTick, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "Number of TSC queries", "/NEM/CPU%u/QueryCpuTick", iCpu);
|
---|
[71293] | 1277 | }
|
---|
[72300] | 1278 |
|
---|
| 1279 | PUVM pUVM = pVM->pUVM;
|
---|
| 1280 | STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesAvailable, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
|
---|
| 1281 | STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Free pages available to the hypervisor",
|
---|
| 1282 | "/NEM/R0Stats/cPagesAvailable");
|
---|
| 1283 | STAMR3RegisterRefresh(pUVM, &pVM->nem.s.R0Stats.cPagesInUse, STAMTYPE_U64, STAMVISIBILITY_ALWAYS,
|
---|
| 1284 | STAMUNIT_PAGES, STAM_REFRESH_GRP_NEM, "Pages in use by hypervisor",
|
---|
| 1285 | "/NEM/R0Stats/cPagesInUse");
|
---|
[71131] | 1286 | }
|
---|
[71075] | 1287 | }
|
---|
[70942] | 1288 | }
|
---|
| 1289 | }
|
---|
| 1290 | }
|
---|
| 1291 |
|
---|
| 1292 | /*
|
---|
| 1293 | * We only fail if in forced mode, otherwise just log the complaint and return.
|
---|
| 1294 | */
|
---|
[70948] | 1295 | Assert(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API || RTErrInfoIsSet(pErrInfo));
|
---|
[70942] | 1296 | if ( (fForced || !fFallback)
|
---|
[70948] | 1297 | && pVM->bMainExecutionEngine != VM_EXEC_ENGINE_NATIVE_API)
|
---|
[70945] | 1298 | return VMSetError(pVM, RT_SUCCESS_NP(rc) ? VERR_NEM_NOT_AVAILABLE : rc, RT_SRC_POS, "%s", pErrInfo->pszMsg);
|
---|
[70942] | 1299 |
|
---|
| 1300 | if (RTErrInfoIsSet(pErrInfo))
|
---|
| 1301 | LogRel(("NEM: Not available: %s\n", pErrInfo->pszMsg));
|
---|
[70918] | 1302 | return VINF_SUCCESS;
|
---|
| 1303 | }
|
---|
| 1304 |
|
---|
| 1305 |
|
---|
[70945] | 1306 | /**
|
---|
| 1307 | * This is called after CPUMR3Init is done.
|
---|
| 1308 | *
|
---|
| 1309 | * @returns VBox status code.
|
---|
| 1310 | * @param pVM The VM handle..
|
---|
| 1311 | */
|
---|
| 1312 | int nemR3NativeInitAfterCPUM(PVM pVM)
|
---|
| 1313 | {
|
---|
| 1314 | /*
|
---|
| 1315 | * Validate sanity.
|
---|
| 1316 | */
|
---|
| 1317 | WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
|
---|
| 1318 | AssertReturn(hPartition != NULL, VERR_WRONG_ORDER);
|
---|
| 1319 | AssertReturn(!pVM->nem.s.hPartitionDevice, VERR_WRONG_ORDER);
|
---|
| 1320 | AssertReturn(!pVM->nem.s.fCreatedEmts, VERR_WRONG_ORDER);
|
---|
[70948] | 1321 | AssertReturn(pVM->bMainExecutionEngine == VM_EXEC_ENGINE_NATIVE_API, VERR_WRONG_ORDER);
|
---|
[70945] | 1322 |
|
---|
| 1323 | /*
|
---|
| 1324 | * Continue setting up the partition now that we've got most of the CPUID feature stuff.
|
---|
| 1325 | */
|
---|
[71296] | 1326 | WHV_PARTITION_PROPERTY Property;
|
---|
| 1327 | HRESULT hrc;
|
---|
[70945] | 1328 |
|
---|
[71296] | 1329 | #if 0
|
---|
| 1330 | /* Not sure if we really need to set the vendor.
|
---|
| 1331 | Update: Apparently we don't. WHvPartitionPropertyCodeProcessorVendor was removed in 17110. */
|
---|
[70945] | 1332 | RT_ZERO(Property);
|
---|
| 1333 | Property.ProcessorVendor = pVM->nem.s.enmCpuVendor == CPUMCPUVENDOR_AMD ? WHvProcessorVendorAmd
|
---|
| 1334 | : WHvProcessorVendorIntel;
|
---|
[72300] | 1335 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorVendor, &Property, sizeof(Property));
|
---|
[70945] | 1336 | if (FAILED(hrc))
|
---|
| 1337 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
[70977] | 1338 | "Failed to set WHvPartitionPropertyCodeProcessorVendor to %u: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1339 | Property.ProcessorVendor, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[71296] | 1340 | #endif
|
---|
[70945] | 1341 |
|
---|
| 1342 | /* Not sure if we really need to set the cache line flush size. */
|
---|
| 1343 | RT_ZERO(Property);
|
---|
| 1344 | Property.ProcessorClFlushSize = pVM->nem.s.cCacheLineFlushShift;
|
---|
[72300] | 1345 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorClFlushSize, &Property, sizeof(Property));
|
---|
[70945] | 1346 | if (FAILED(hrc))
|
---|
| 1347 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
[70977] | 1348 | "Failed to set WHvPartitionPropertyCodeProcessorClFlushSize to %u: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1349 | pVM->nem.s.cCacheLineFlushShift, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1350 |
|
---|
[72446] | 1351 | /* Intercept #DB, #BP and #UD exceptions. */
|
---|
| 1352 | RT_ZERO(Property);
|
---|
[72473] | 1353 | Property.ExceptionExitBitmap = RT_BIT_64(WHvX64ExceptionTypeDebugTrapOrFault)
|
---|
[72446] | 1354 | | RT_BIT_64(WHvX64ExceptionTypeBreakpointTrap)
|
---|
| 1355 | | RT_BIT_64(WHvX64ExceptionTypeInvalidOpcodeFault);
|
---|
| 1356 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeExceptionExitBitmap, &Property, sizeof(Property));
|
---|
| 1357 | if (FAILED(hrc))
|
---|
| 1358 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1359 | "Failed to set WHvPartitionPropertyCodeExceptionExitBitmap to %#RX64: %Rhrc (Last=%#x/%u)",
|
---|
| 1360 | Property.ExceptionExitBitmap, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
| 1361 |
|
---|
| 1362 |
|
---|
[70945] | 1363 | /*
|
---|
| 1364 | * Sync CPU features with CPUM.
|
---|
| 1365 | */
|
---|
| 1366 | /** @todo sync CPU features with CPUM. */
|
---|
| 1367 |
|
---|
| 1368 | /* Set the partition property. */
|
---|
| 1369 | RT_ZERO(Property);
|
---|
| 1370 | Property.ProcessorFeatures.AsUINT64 = pVM->nem.s.uCpuFeatures.u64;
|
---|
[72300] | 1371 | hrc = WHvSetPartitionProperty(hPartition, WHvPartitionPropertyCodeProcessorFeatures, &Property, sizeof(Property));
|
---|
[70945] | 1372 | if (FAILED(hrc))
|
---|
| 1373 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
[70977] | 1374 | "Failed to set WHvPartitionPropertyCodeProcessorFeatures to %'#RX64: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1375 | pVM->nem.s.uCpuFeatures.u64, hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1376 |
|
---|
| 1377 | /*
|
---|
| 1378 | * Set up the partition and create EMTs.
|
---|
| 1379 | *
|
---|
| 1380 | * Seems like this is where the partition is actually instantiated and we get
|
---|
| 1381 | * a handle to it.
|
---|
| 1382 | */
|
---|
| 1383 | hrc = WHvSetupPartition(hPartition);
|
---|
| 1384 | if (FAILED(hrc))
|
---|
[70977] | 1385 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1386 | "Call to WHvSetupPartition failed: %Rhrc (Last=%#x/%u)",
|
---|
[71129] | 1387 | hrc, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1388 |
|
---|
| 1389 | /* Get the handle. */
|
---|
| 1390 | HANDLE hPartitionDevice;
|
---|
| 1391 | __try
|
---|
| 1392 | {
|
---|
| 1393 | hPartitionDevice = ((HANDLE *)hPartition)[1];
|
---|
| 1394 | }
|
---|
| 1395 | __except(EXCEPTION_EXECUTE_HANDLER)
|
---|
| 1396 | {
|
---|
| 1397 | hrc = GetExceptionCode();
|
---|
| 1398 | hPartitionDevice = NULL;
|
---|
| 1399 | }
|
---|
| 1400 | if ( hPartitionDevice == NULL
|
---|
| 1401 | || hPartitionDevice == (HANDLE)(intptr_t)-1)
|
---|
| 1402 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1403 | "Failed to get device handle for partition %p: %Rhrc", hPartition, hrc);
|
---|
[71075] | 1404 |
|
---|
| 1405 | HV_PARTITION_ID idHvPartition = HV_PARTITION_ID_INVALID;
|
---|
| 1406 | if (!g_pfnVidGetHvPartitionId(hPartitionDevice, &idHvPartition))
|
---|
| 1407 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1408 | "Failed to get device handle and/or partition ID for %p (hPartitionDevice=%p, Last=%#x/%u)",
|
---|
[71129] | 1409 | hPartition, hPartitionDevice, RTNtLastStatusValue(), RTNtLastErrorValue());
|
---|
[70945] | 1410 | pVM->nem.s.hPartitionDevice = hPartitionDevice;
|
---|
[71075] | 1411 | pVM->nem.s.idHvPartition = idHvPartition;
|
---|
[70945] | 1412 |
|
---|
| 1413 | /*
|
---|
[71129] | 1414 | * Setup the EMTs.
|
---|
[70945] | 1415 | */
|
---|
| 1416 | VMCPUID iCpu;
|
---|
| 1417 | for (iCpu = 0; iCpu < pVM->cCpus; iCpu++)
|
---|
| 1418 | {
|
---|
[71129] | 1419 | PVMCPU pVCpu = &pVM->aCpus[iCpu];
|
---|
| 1420 |
|
---|
| 1421 | pVCpu->nem.s.hNativeThreadHandle = (RTR3PTR)RTThreadGetNativeHandle(VMR3GetThreadHandle(pVCpu->pUVCpu));
|
---|
| 1422 | Assert((HANDLE)pVCpu->nem.s.hNativeThreadHandle != INVALID_HANDLE_VALUE);
|
---|
| 1423 |
|
---|
[72924] | 1424 | #ifndef NEM_WIN_USE_OUR_OWN_RUN_API
|
---|
| 1425 | # ifdef NEM_WIN_WITH_RING0_RUNLOOP
|
---|
| 1426 | if (!pVM->nem.s.fUseRing0Runloop)
|
---|
| 1427 | # endif
|
---|
[71129] | 1428 | {
|
---|
[72924] | 1429 | hrc = WHvCreateVirtualProcessor(hPartition, iCpu, 0 /*fFlags*/);
|
---|
| 1430 | if (FAILED(hrc))
|
---|
| 1431 | {
|
---|
| 1432 | NTSTATUS const rcNtLast = RTNtLastStatusValue();
|
---|
| 1433 | DWORD const dwErrLast = RTNtLastErrorValue();
|
---|
| 1434 | while (iCpu-- > 0)
|
---|
| 1435 | {
|
---|
| 1436 | HRESULT hrc2 = WHvDeleteVirtualProcessor(hPartition, iCpu);
|
---|
| 1437 | AssertLogRelMsg(SUCCEEDED(hrc2), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
|
---|
| 1438 | hPartition, iCpu, hrc2, RTNtLastStatusValue(),
|
---|
| 1439 | RTNtLastErrorValue()));
|
---|
| 1440 | }
|
---|
| 1441 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1442 | "Call to WHvSetupPartition failed: %Rhrc (Last=%#x/%u)", hrc, rcNtLast, dwErrLast);
|
---|
| 1443 | }
|
---|
[71129] | 1444 | }
|
---|
[72924] | 1445 | # ifdef NEM_WIN_WITH_RING0_RUNLOOP
|
---|
[71129] | 1446 | else
|
---|
[72924] | 1447 | # endif
|
---|
| 1448 | #endif /* !NEM_WIN_USE_OUR_OWN_RUN_API */
|
---|
| 1449 | #if defined(NEM_WIN_WITH_RING0_RUNLOOP) || defined(NEM_WIN_USE_OUR_OWN_RUN_API)
|
---|
[71129] | 1450 | {
|
---|
[72924] | 1451 | VID_MAPPED_MESSAGE_SLOT MappedMsgSlot = { NULL, UINT32_MAX, UINT32_MAX };
|
---|
| 1452 | if (g_pfnVidMessageSlotMap(hPartitionDevice, &MappedMsgSlot, iCpu))
|
---|
[70945] | 1453 | {
|
---|
[72924] | 1454 | AssertLogRelMsg(MappedMsgSlot.iCpu == iCpu && MappedMsgSlot.uParentAdvisory == UINT32_MAX,
|
---|
| 1455 | ("%#x %#x (iCpu=%#x)\n", MappedMsgSlot.iCpu, MappedMsgSlot.uParentAdvisory, iCpu));
|
---|
| 1456 | pVCpu->nem.s.pvMsgSlotMapping = MappedMsgSlot.pMsgBlock;
|
---|
[70945] | 1457 | }
|
---|
[72924] | 1458 | else
|
---|
| 1459 | {
|
---|
| 1460 | NTSTATUS const rcNtLast = RTNtLastStatusValue();
|
---|
| 1461 | DWORD const dwErrLast = RTNtLastErrorValue();
|
---|
| 1462 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS,
|
---|
| 1463 | "Call to WHvSetupPartition failed: %Rhrc (Last=%#x/%u)", hrc, rcNtLast, dwErrLast);
|
---|
| 1464 | }
|
---|
[70945] | 1465 | }
|
---|
[72924] | 1466 | #endif
|
---|
[70945] | 1467 | }
|
---|
| 1468 | pVM->nem.s.fCreatedEmts = true;
|
---|
| 1469 |
|
---|
[71136] | 1470 | /*
|
---|
| 1471 | * Do some more ring-0 initialization now that we've got the partition handle.
|
---|
| 1472 | */
|
---|
| 1473 | int rc = VMMR3CallR0Emt(pVM, &pVM->aCpus[0], VMMR0_DO_NEM_INIT_VM_PART_2, 0, NULL);
|
---|
| 1474 | if (RT_SUCCESS(rc))
|
---|
| 1475 | {
|
---|
| 1476 | LogRel(("NEM: Successfully set up partition (device handle %p, partition ID %#llx)\n", hPartitionDevice, idHvPartition));
|
---|
[72300] | 1477 |
|
---|
| 1478 | #if 1
|
---|
| 1479 | VMMR3CallR0Emt(pVM, &pVM->aCpus[0], VMMR0_DO_NEM_UPDATE_STATISTICS, 0, NULL);
|
---|
| 1480 | LogRel(("NEM: Memory balance: %#RX64 out of %#RX64 pages in use\n",
|
---|
| 1481 | pVM->nem.s.R0Stats.cPagesInUse, pVM->nem.s.R0Stats.cPagesAvailable));
|
---|
| 1482 | #endif
|
---|
| 1483 |
|
---|
| 1484 | /*
|
---|
| 1485 | * Register statistics on shared pages.
|
---|
| 1486 | */
|
---|
| 1487 | /** @todo HvCallMapStatsPage */
|
---|
[72358] | 1488 |
|
---|
| 1489 | /*
|
---|
| 1490 | * Adjust features.
|
---|
[72419] | 1491 | * Note! We've already disabled X2APIC via CFGM during the first init call.
|
---|
[72358] | 1492 | */
|
---|
[72541] | 1493 |
|
---|
[72555] | 1494 | #if 0 && defined(DEBUG_bird)
|
---|
[72541] | 1495 | /*
|
---|
| 1496 | * Poke and probe a little.
|
---|
| 1497 | */
|
---|
[72544] | 1498 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
| 1499 | uint32_t aRegNames[1024];
|
---|
| 1500 | HV_REGISTER_VALUE aRegValues[1024];
|
---|
| 1501 | uint32_t aPropCodes[128];
|
---|
| 1502 | uint64_t aPropValues[128];
|
---|
| 1503 | for (int iOuter = 0; iOuter < 5; iOuter++)
|
---|
[72541] | 1504 | {
|
---|
[72544] | 1505 | LogRel(("\niOuter %d\n", iOuter));
|
---|
| 1506 | # if 1
|
---|
| 1507 | /* registers */
|
---|
| 1508 | uint32_t iRegValue = 0;
|
---|
| 1509 | uint32_t cRegChanges = 0;
|
---|
| 1510 | for (uint32_t iReg = 0; iReg < 0x001101ff; iReg++)
|
---|
[72541] | 1511 | {
|
---|
[72544] | 1512 | if (iOuter != 0 && aRegNames[iRegValue] > iReg)
|
---|
| 1513 | continue;
|
---|
| 1514 | RT_ZERO(pVCpu->nem.s.Hypercall.Experiment);
|
---|
| 1515 | pVCpu->nem.s.Hypercall.Experiment.uItem = iReg;
|
---|
| 1516 | int rc2 = VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_NEM_EXPERIMENT, 0, NULL);
|
---|
| 1517 | AssertLogRelRCBreak(rc2);
|
---|
| 1518 | if (pVCpu->nem.s.Hypercall.Experiment.fSuccess)
|
---|
[72541] | 1519 | {
|
---|
[72544] | 1520 | LogRel(("Register %#010x = %#18RX64, %#18RX64\n", iReg,
|
---|
| 1521 | pVCpu->nem.s.Hypercall.Experiment.uLoValue, pVCpu->nem.s.Hypercall.Experiment.uHiValue));
|
---|
| 1522 | if (iReg == HvX64RegisterTsc)
|
---|
| 1523 | {
|
---|
| 1524 | uint64_t uTsc = ASMReadTSC();
|
---|
| 1525 | LogRel(("TSC = %#18RX64; Delta %#18RX64 or %#18RX64\n",
|
---|
| 1526 | uTsc, pVCpu->nem.s.Hypercall.Experiment.uLoValue - uTsc, uTsc - pVCpu->nem.s.Hypercall.Experiment.uLoValue));
|
---|
| 1527 | }
|
---|
| 1528 |
|
---|
| 1529 | if (iOuter == 0)
|
---|
| 1530 | aRegNames[iRegValue] = iReg;
|
---|
| 1531 | else if( aRegValues[iRegValue].Reg128.Low64 != pVCpu->nem.s.Hypercall.Experiment.uLoValue
|
---|
| 1532 | || aRegValues[iRegValue].Reg128.High64 != pVCpu->nem.s.Hypercall.Experiment.uHiValue)
|
---|
| 1533 | {
|
---|
| 1534 | LogRel(("Changed from %#18RX64, %#18RX64 !!\n",
|
---|
| 1535 | aRegValues[iRegValue].Reg128.Low64, aRegValues[iRegValue].Reg128.High64));
|
---|
| 1536 | LogRel(("Delta %#18RX64, %#18RX64 !!\n",
|
---|
| 1537 | pVCpu->nem.s.Hypercall.Experiment.uLoValue - aRegValues[iRegValue].Reg128.Low64,
|
---|
| 1538 | pVCpu->nem.s.Hypercall.Experiment.uHiValue - aRegValues[iRegValue].Reg128.High64));
|
---|
| 1539 | cRegChanges++;
|
---|
| 1540 | }
|
---|
| 1541 | aRegValues[iRegValue].Reg128.Low64 = pVCpu->nem.s.Hypercall.Experiment.uLoValue;
|
---|
| 1542 | aRegValues[iRegValue].Reg128.High64 = pVCpu->nem.s.Hypercall.Experiment.uHiValue;
|
---|
| 1543 | iRegValue++;
|
---|
| 1544 | AssertBreak(iRegValue < RT_ELEMENTS(aRegValues));
|
---|
[72541] | 1545 | }
|
---|
| 1546 | }
|
---|
[72544] | 1547 | LogRel(("Found %u registers, %u changed\n", iRegValue, cRegChanges));
|
---|
| 1548 | # endif
|
---|
| 1549 | # if 1
|
---|
| 1550 | /* partition properties */
|
---|
| 1551 | uint32_t iPropValue = 0;
|
---|
| 1552 | uint32_t cPropChanges = 0;
|
---|
| 1553 | for (uint32_t iProp = 0; iProp < 0xc11ff; iProp++)
|
---|
| 1554 | {
|
---|
| 1555 | if (iProp == HvPartitionPropertyDebugChannelId /* hangs host */)
|
---|
| 1556 | continue;
|
---|
| 1557 | if (iOuter != 0 && aPropCodes[iPropValue] > iProp)
|
---|
| 1558 | continue;
|
---|
| 1559 | RT_ZERO(pVCpu->nem.s.Hypercall.Experiment);
|
---|
| 1560 | pVCpu->nem.s.Hypercall.Experiment.uItem = iProp;
|
---|
| 1561 | int rc2 = VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_NEM_EXPERIMENT, 1, NULL);
|
---|
| 1562 | AssertLogRelRCBreak(rc2);
|
---|
| 1563 | if (pVCpu->nem.s.Hypercall.Experiment.fSuccess)
|
---|
| 1564 | {
|
---|
| 1565 | LogRel(("Property %#010x = %#18RX64\n", iProp, pVCpu->nem.s.Hypercall.Experiment.uLoValue));
|
---|
| 1566 | if (iOuter == 0)
|
---|
| 1567 | aPropCodes[iPropValue] = iProp;
|
---|
| 1568 | else if (aPropValues[iPropValue] != pVCpu->nem.s.Hypercall.Experiment.uLoValue)
|
---|
| 1569 | {
|
---|
| 1570 | LogRel(("Changed from %#18RX64, delta %#18RX64!!\n",
|
---|
| 1571 | aPropValues[iPropValue], pVCpu->nem.s.Hypercall.Experiment.uLoValue - aPropValues[iPropValue]));
|
---|
| 1572 | cRegChanges++;
|
---|
| 1573 | }
|
---|
| 1574 | aPropValues[iPropValue] = pVCpu->nem.s.Hypercall.Experiment.uLoValue;
|
---|
| 1575 | iPropValue++;
|
---|
| 1576 | AssertBreak(iPropValue < RT_ELEMENTS(aPropValues));
|
---|
| 1577 | }
|
---|
| 1578 | }
|
---|
| 1579 | LogRel(("Found %u properties, %u changed\n", iPropValue, cPropChanges));
|
---|
| 1580 | # endif
|
---|
| 1581 |
|
---|
| 1582 | /* Modify the TSC register value and see what changes. */
|
---|
| 1583 | if (iOuter != 0)
|
---|
| 1584 | {
|
---|
| 1585 | RT_ZERO(pVCpu->nem.s.Hypercall.Experiment);
|
---|
| 1586 | pVCpu->nem.s.Hypercall.Experiment.uItem = HvX64RegisterTsc;
|
---|
| 1587 | pVCpu->nem.s.Hypercall.Experiment.uHiValue = UINT64_C(0x00000fffffffffff) >> iOuter;
|
---|
| 1588 | pVCpu->nem.s.Hypercall.Experiment.uLoValue = UINT64_C(0x0011100000000000) << iOuter;
|
---|
| 1589 | VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_NEM_EXPERIMENT, 2, NULL);
|
---|
| 1590 | LogRel(("Setting HvX64RegisterTsc -> %RTbool (%#RX64)\n", pVCpu->nem.s.Hypercall.Experiment.fSuccess, pVCpu->nem.s.Hypercall.Experiment.uStatus));
|
---|
| 1591 | }
|
---|
| 1592 |
|
---|
[72541] | 1593 | RT_ZERO(pVCpu->nem.s.Hypercall.Experiment);
|
---|
[72544] | 1594 | pVCpu->nem.s.Hypercall.Experiment.uItem = HvX64RegisterTsc;
|
---|
| 1595 | VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_NEM_EXPERIMENT, 0, NULL);
|
---|
| 1596 | LogRel(("HvX64RegisterTsc = %#RX64, %#RX64\n", pVCpu->nem.s.Hypercall.Experiment.uLoValue, pVCpu->nem.s.Hypercall.Experiment.uHiValue));
|
---|
[72541] | 1597 | }
|
---|
[72544] | 1598 |
|
---|
[72541] | 1599 | #endif
|
---|
[71136] | 1600 | return VINF_SUCCESS;
|
---|
| 1601 | }
|
---|
| 1602 | return VMSetError(pVM, VERR_NEM_VM_CREATE_FAILED, RT_SRC_POS, "Call to NEMR0InitVMPart2 failed: %Rrc", rc);
|
---|
[70945] | 1603 | }
|
---|
| 1604 |
|
---|
| 1605 |
|
---|
[70918] | 1606 | int nemR3NativeInitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
|
---|
| 1607 | {
|
---|
[71293] | 1608 | //BOOL fRet = SetThreadPriority(GetCurrentThread(), 0);
|
---|
| 1609 | //AssertLogRel(fRet);
|
---|
| 1610 |
|
---|
[70918] | 1611 | NOREF(pVM); NOREF(enmWhat);
|
---|
| 1612 | return VINF_SUCCESS;
|
---|
| 1613 | }
|
---|
| 1614 |
|
---|
| 1615 |
|
---|
| 1616 | int nemR3NativeTerm(PVM pVM)
|
---|
| 1617 | {
|
---|
[70945] | 1618 | /*
|
---|
| 1619 | * Delete the partition.
|
---|
| 1620 | */
|
---|
| 1621 | WHV_PARTITION_HANDLE hPartition = pVM->nem.s.hPartition;
|
---|
| 1622 | pVM->nem.s.hPartition = NULL;
|
---|
| 1623 | pVM->nem.s.hPartitionDevice = NULL;
|
---|
| 1624 | if (hPartition != NULL)
|
---|
| 1625 | {
|
---|
| 1626 | VMCPUID iCpu = pVM->nem.s.fCreatedEmts ? pVM->cCpus : 0;
|
---|
| 1627 | LogRel(("NEM: Destroying partition %p with its %u VCpus...\n", hPartition, iCpu));
|
---|
| 1628 | while (iCpu-- > 0)
|
---|
| 1629 | {
|
---|
[71129] | 1630 | pVM->aCpus[iCpu].nem.s.pvMsgSlotMapping = NULL;
|
---|
[72924] | 1631 | #ifndef NEM_WIN_USE_OUR_OWN_RUN_API
|
---|
| 1632 | # ifdef NEM_WIN_WITH_RING0_RUNLOOP
|
---|
| 1633 | if (!pVM->nem.s.fUseRing0Runloop)
|
---|
| 1634 | # endif
|
---|
| 1635 | {
|
---|
| 1636 | HRESULT hrc = WHvDeleteVirtualProcessor(hPartition, iCpu);
|
---|
| 1637 | AssertLogRelMsg(SUCCEEDED(hrc), ("WHvDeleteVirtualProcessor(%p, %u) -> %Rhrc (Last=%#x/%u)\n",
|
---|
| 1638 | hPartition, iCpu, hrc, RTNtLastStatusValue(),
|
---|
| 1639 | RTNtLastErrorValue()));
|
---|
| 1640 | }
|
---|
[71129] | 1641 | #endif
|
---|
[70945] | 1642 | }
|
---|
| 1643 | WHvDeletePartition(hPartition);
|
---|
| 1644 | }
|
---|
| 1645 | pVM->nem.s.fCreatedEmts = false;
|
---|
[70918] | 1646 | return VINF_SUCCESS;
|
---|
| 1647 | }
|
---|
| 1648 |
|
---|
| 1649 |
|
---|
[71040] | 1650 | /**
|
---|
| 1651 | * VM reset notification.
|
---|
| 1652 | *
|
---|
| 1653 | * @param pVM The cross context VM structure.
|
---|
| 1654 | */
|
---|
[70918] | 1655 | void nemR3NativeReset(PVM pVM)
|
---|
| 1656 | {
|
---|
[71040] | 1657 | /* Unfix the A20 gate. */
|
---|
| 1658 | pVM->nem.s.fA20Fixed = false;
|
---|
[70918] | 1659 | }
|
---|
| 1660 |
|
---|
| 1661 |
|
---|
[71040] | 1662 | /**
|
---|
| 1663 | * Reset CPU due to INIT IPI or hot (un)plugging.
|
---|
| 1664 | *
|
---|
| 1665 | * @param pVCpu The cross context virtual CPU structure of the CPU being
|
---|
| 1666 | * reset.
|
---|
| 1667 | * @param fInitIpi Whether this is the INIT IPI or hot (un)plugging case.
|
---|
| 1668 | */
|
---|
| 1669 | void nemR3NativeResetCpu(PVMCPU pVCpu, bool fInitIpi)
|
---|
[70918] | 1670 | {
|
---|
[71040] | 1671 | /* Lock the A20 gate if INIT IPI, make sure it's enabled. */
|
---|
| 1672 | if (fInitIpi && pVCpu->idCpu > 0)
|
---|
| 1673 | {
|
---|
| 1674 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 1675 | if (!pVM->nem.s.fA20Enabled)
|
---|
| 1676 | nemR3NativeNotifySetA20(pVCpu, true);
|
---|
| 1677 | pVM->nem.s.fA20Enabled = true;
|
---|
| 1678 | pVM->nem.s.fA20Fixed = true;
|
---|
| 1679 | }
|
---|
[70918] | 1680 | }
|
---|
| 1681 |
|
---|
[71081] | 1682 |
|
---|
[71152] | 1683 | VBOXSTRICTRC nemR3NativeRunGC(PVM pVM, PVMCPU pVCpu)
|
---|
| 1684 | {
|
---|
[72924] | 1685 | #ifdef NEM_WIN_WITH_RING0_RUNLOOP
|
---|
| 1686 | if (pVM->nem.s.fUseRing0Runloop)
|
---|
[71222] | 1687 | {
|
---|
[72924] | 1688 | for (;;)
|
---|
[71222] | 1689 | {
|
---|
[72924] | 1690 | VBOXSTRICTRC rcStrict = VMMR3CallR0EmtFast(pVM, pVCpu, VMMR0_DO_NEM_RUN);
|
---|
| 1691 | if (RT_SUCCESS(rcStrict))
|
---|
[72392] | 1692 | {
|
---|
[72924] | 1693 | /*
|
---|
[73282] | 1694 | * We deal with VINF_NEM_FLUSH_TLB here, since we're running the risk of
|
---|
[72924] | 1695 | * getting these while we already got another RC (I/O ports).
|
---|
| 1696 | */
|
---|
| 1697 | /* Status codes: */
|
---|
| 1698 | VBOXSTRICTRC rcPending = pVCpu->nem.s.rcPending;
|
---|
| 1699 | pVCpu->nem.s.rcPending = VINF_SUCCESS;
|
---|
[73282] | 1700 | if (rcStrict == VINF_NEM_FLUSH_TLB || rcPending == VINF_NEM_FLUSH_TLB)
|
---|
[72252] | 1701 | {
|
---|
[72924] | 1702 | LogFlow(("nemR3NativeRunGC: calling PGMFlushTLB...\n"));
|
---|
| 1703 | int rc = PGMFlushTLB(pVCpu, CPUMGetGuestCR3(pVCpu), true);
|
---|
| 1704 | AssertRCReturn(rc, rc);
|
---|
[73282] | 1705 | if (rcStrict == VINF_NEM_FLUSH_TLB)
|
---|
[72252] | 1706 | {
|
---|
[74791] | 1707 | if ( !VM_FF_IS_ANY_SET(pVM, VM_FF_HIGH_PRIORITY_POST_MASK | VM_FF_HP_R0_PRE_HM_MASK)
|
---|
[74789] | 1708 | && !VMCPU_FF_IS_ANY_SET(pVCpu, (VMCPU_FF_HIGH_PRIORITY_POST_MASK | VMCPU_FF_HP_R0_PRE_HM_MASK)
|
---|
[72924] | 1709 | & ~VMCPU_FF_RESUME_GUEST_MASK))
|
---|
| 1710 | {
|
---|
[74795] | 1711 | VMCPU_FF_CLEAR_MASK(pVCpu, VMCPU_FF_RESUME_GUEST_MASK);
|
---|
[72924] | 1712 | continue;
|
---|
| 1713 | }
|
---|
| 1714 | rcStrict = VINF_SUCCESS;
|
---|
[72252] | 1715 | }
|
---|
| 1716 | }
|
---|
[72924] | 1717 | else
|
---|
| 1718 | AssertMsg(rcPending == VINF_SUCCESS, ("rcPending=%Rrc\n", VBOXSTRICTRC_VAL(rcPending) ));
|
---|
[72252] | 1719 | }
|
---|
[72924] | 1720 | LogFlow(("nemR3NativeRunGC: returns %Rrc\n", VBOXSTRICTRC_VAL(rcStrict) ));
|
---|
| 1721 | return rcStrict;
|
---|
[71222] | 1722 | }
|
---|
| 1723 | }
|
---|
[71152] | 1724 | #endif
|
---|
[72924] | 1725 | return nemHCWinRunGC(pVM, pVCpu, NULL /*pGVM*/, NULL /*pGVCpu*/);
|
---|
[71152] | 1726 | }
|
---|
| 1727 |
|
---|
| 1728 |
|
---|
[72634] | 1729 | bool nemR3NativeCanExecuteGuest(PVM pVM, PVMCPU pVCpu)
|
---|
[70979] | 1730 | {
|
---|
[72634] | 1731 | NOREF(pVM); NOREF(pVCpu);
|
---|
[70979] | 1732 | return true;
|
---|
| 1733 | }
|
---|
| 1734 |
|
---|
| 1735 |
|
---|
| 1736 | bool nemR3NativeSetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable)
|
---|
| 1737 | {
|
---|
| 1738 | NOREF(pVM); NOREF(pVCpu); NOREF(fEnable);
|
---|
| 1739 | return false;
|
---|
| 1740 | }
|
---|
| 1741 |
|
---|
| 1742 |
|
---|
[71040] | 1743 | /**
|
---|
| 1744 | * Forced flag notification call from VMEmt.h.
|
---|
| 1745 | *
|
---|
| 1746 | * This is only called when pVCpu is in the VMCPUSTATE_STARTED_EXEC_NEM state.
|
---|
| 1747 | *
|
---|
| 1748 | * @param pVM The cross context VM structure.
|
---|
| 1749 | * @param pVCpu The cross context virtual CPU structure of the CPU
|
---|
| 1750 | * to be notified.
|
---|
| 1751 | * @param fFlags Notification flags, VMNOTIFYFF_FLAGS_XXX.
|
---|
| 1752 | */
|
---|
| 1753 | void nemR3NativeNotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags)
|
---|
| 1754 | {
|
---|
[71129] | 1755 | #ifdef NEM_WIN_USE_OUR_OWN_RUN_API
|
---|
[71152] | 1756 | nemHCWinCancelRunVirtualProcessor(pVM, pVCpu);
|
---|
[71129] | 1757 | #else
|
---|
[72924] | 1758 | # ifdef NEM_WIN_WITH_RING0_RUNLOOP
|
---|
| 1759 | if (pVM->nem.s.fUseRing0Runloop)
|
---|
| 1760 | nemHCWinCancelRunVirtualProcessor(pVM, pVCpu);
|
---|
| 1761 | else
|
---|
| 1762 | # endif
|
---|
| 1763 | {
|
---|
| 1764 | Log8(("nemR3NativeNotifyFF: canceling %u\n", pVCpu->idCpu));
|
---|
| 1765 | HRESULT hrc = WHvCancelRunVirtualProcessor(pVM->nem.s.hPartition, pVCpu->idCpu, 0);
|
---|
| 1766 | AssertMsg(SUCCEEDED(hrc), ("WHvCancelRunVirtualProcessor -> hrc=%Rhrc\n", hrc));
|
---|
| 1767 | RT_NOREF_PV(hrc);
|
---|
| 1768 | }
|
---|
[71129] | 1769 | #endif
|
---|
[71040] | 1770 | RT_NOREF_PV(fFlags);
|
---|
| 1771 | }
|
---|
| 1772 |
|
---|
| 1773 |
|
---|
[70977] | 1774 | DECLINLINE(int) nemR3NativeGCPhys2R3PtrReadOnly(PVM pVM, RTGCPHYS GCPhys, const void **ppv)
|
---|
| 1775 | {
|
---|
| 1776 | PGMPAGEMAPLOCK Lock;
|
---|
| 1777 | int rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, ppv, &Lock);
|
---|
| 1778 | if (RT_SUCCESS(rc))
|
---|
| 1779 | PGMPhysReleasePageMappingLock(pVM, &Lock);
|
---|
| 1780 | return rc;
|
---|
| 1781 | }
|
---|
| 1782 |
|
---|
[71043] | 1783 |
|
---|
[70977] | 1784 | DECLINLINE(int) nemR3NativeGCPhys2R3PtrWriteable(PVM pVM, RTGCPHYS GCPhys, void **ppv)
|
---|
| 1785 | {
|
---|
| 1786 | PGMPAGEMAPLOCK Lock;
|
---|
| 1787 | int rc = PGMPhysGCPhys2CCPtr(pVM, GCPhys, ppv, &Lock);
|
---|
| 1788 | if (RT_SUCCESS(rc))
|
---|
| 1789 | PGMPhysReleasePageMappingLock(pVM, &Lock);
|
---|
| 1790 | return rc;
|
---|
| 1791 | }
|
---|
| 1792 |
|
---|
| 1793 |
|
---|
[70954] | 1794 | int nemR3NativeNotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb)
|
---|
| 1795 | {
|
---|
[71131] | 1796 | Log5(("nemR3NativeNotifyPhysRamRegister: %RGp LB %RGp\n", GCPhys, cb));
|
---|
[70954] | 1797 | NOREF(pVM); NOREF(GCPhys); NOREF(cb);
|
---|
| 1798 | return VINF_SUCCESS;
|
---|
| 1799 | }
|
---|
| 1800 |
|
---|
| 1801 |
|
---|
[70977] | 1802 | int nemR3NativeNotifyPhysMmioExMap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvMmio2)
|
---|
[70954] | 1803 | {
|
---|
[71131] | 1804 | Log5(("nemR3NativeNotifyPhysMmioExMap: %RGp LB %RGp fFlags=%#x pvMmio2=%p\n", GCPhys, cb, fFlags, pvMmio2));
|
---|
[70977] | 1805 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags); NOREF(pvMmio2);
|
---|
[70954] | 1806 | return VINF_SUCCESS;
|
---|
| 1807 | }
|
---|
| 1808 |
|
---|
| 1809 |
|
---|
| 1810 | int nemR3NativeNotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
---|
| 1811 | {
|
---|
[71131] | 1812 | Log5(("nemR3NativeNotifyPhysMmioExUnmap: %RGp LB %RGp fFlags=%#x\n", GCPhys, cb, fFlags));
|
---|
[70954] | 1813 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags);
|
---|
| 1814 | return VINF_SUCCESS;
|
---|
| 1815 | }
|
---|
| 1816 |
|
---|
| 1817 |
|
---|
[70977] | 1818 | /**
|
---|
| 1819 | * Called early during ROM registration, right after the pages have been
|
---|
| 1820 | * allocated and the RAM range updated.
|
---|
| 1821 | *
|
---|
| 1822 | * This will be succeeded by a number of NEMHCNotifyPhysPageProtChanged() calls
|
---|
| 1823 | * and finally a NEMR3NotifyPhysRomRegisterEarly().
|
---|
| 1824 | *
|
---|
| 1825 | * @returns VBox status code
|
---|
| 1826 | * @param pVM The cross context VM structure.
|
---|
| 1827 | * @param GCPhys The ROM address (page aligned).
|
---|
| 1828 | * @param cb The size (page aligned).
|
---|
| 1829 | * @param fFlags NEM_NOTIFY_PHYS_ROM_F_XXX.
|
---|
| 1830 | */
|
---|
| 1831 | int nemR3NativeNotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
---|
[70954] | 1832 | {
|
---|
[71131] | 1833 | Log5(("nemR3NativeNotifyPhysRomRegisterEarly: %RGp LB %RGp fFlags=%#x\n", GCPhys, cb, fFlags));
|
---|
[70977] | 1834 | #if 0 /* Let's not do this after all. We'll protection change notifications for each page and if not we'll map them lazily. */
|
---|
| 1835 | RTGCPHYS const cPages = cb >> X86_PAGE_SHIFT;
|
---|
| 1836 | for (RTGCPHYS iPage = 0; iPage < cPages; iPage++, GCPhys += X86_PAGE_SIZE)
|
---|
| 1837 | {
|
---|
| 1838 | const void *pvPage;
|
---|
| 1839 | int rc = nemR3NativeGCPhys2R3PtrReadOnly(pVM, GCPhys, &pvPage);
|
---|
| 1840 | if (RT_SUCCESS(rc))
|
---|
| 1841 | {
|
---|
| 1842 | HRESULT hrc = WHvMapGpaRange(pVM->nem.s.hPartition, (void *)pvPage, GCPhys, X86_PAGE_SIZE,
|
---|
| 1843 | WHvMapGpaRangeFlagRead | WHvMapGpaRangeFlagExecute);
|
---|
| 1844 | if (SUCCEEDED(hrc))
|
---|
| 1845 | { /* likely */ }
|
---|
| 1846 | else
|
---|
| 1847 | {
|
---|
| 1848 | LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
|
---|
[71129] | 1849 | GCPhys, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
|
---|
[70977] | 1850 | return VERR_NEM_INIT_FAILED;
|
---|
| 1851 | }
|
---|
| 1852 | }
|
---|
| 1853 | else
|
---|
| 1854 | {
|
---|
| 1855 | LogRel(("nemR3NativeNotifyPhysRomRegisterEarly: GCPhys=%RGp rc=%Rrc\n", GCPhys, rc));
|
---|
| 1856 | return rc;
|
---|
| 1857 | }
|
---|
| 1858 | }
|
---|
| 1859 | #else
|
---|
| 1860 | NOREF(pVM); NOREF(GCPhys); NOREF(cb);
|
---|
| 1861 | #endif
|
---|
| 1862 | RT_NOREF_PV(fFlags);
|
---|
[70954] | 1863 | return VINF_SUCCESS;
|
---|
| 1864 | }
|
---|
| 1865 |
|
---|
| 1866 |
|
---|
[70977] | 1867 | /**
|
---|
| 1868 | * Called after the ROM range has been fully completed.
|
---|
| 1869 | *
|
---|
| 1870 | * This will be preceeded by a NEMR3NotifyPhysRomRegisterEarly() call as well a
|
---|
| 1871 | * number of NEMHCNotifyPhysPageProtChanged calls.
|
---|
| 1872 | *
|
---|
| 1873 | * @returns VBox status code
|
---|
| 1874 | * @param pVM The cross context VM structure.
|
---|
| 1875 | * @param GCPhys The ROM address (page aligned).
|
---|
| 1876 | * @param cb The size (page aligned).
|
---|
| 1877 | * @param fFlags NEM_NOTIFY_PHYS_ROM_F_XXX.
|
---|
| 1878 | */
|
---|
| 1879 | int nemR3NativeNotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags)
|
---|
[70954] | 1880 | {
|
---|
[71131] | 1881 | Log5(("nemR3NativeNotifyPhysRomRegisterLate: %RGp LB %RGp fFlags=%#x\n", GCPhys, cb, fFlags));
|
---|
[70954] | 1882 | NOREF(pVM); NOREF(GCPhys); NOREF(cb); NOREF(fFlags);
|
---|
| 1883 | return VINF_SUCCESS;
|
---|
| 1884 | }
|
---|
| 1885 |
|
---|
| 1886 |
|
---|
[71040] | 1887 | /**
|
---|
[71043] | 1888 | * @callback_method_impl{FNPGMPHYSNEMCHECKPAGE}
|
---|
[71040] | 1889 | */
|
---|
| 1890 | static DECLCALLBACK(int) nemR3WinUnsetForA20CheckerCallback(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys,
|
---|
| 1891 | PPGMPHYSNEMPAGEINFO pInfo, void *pvUser)
|
---|
| 1892 | {
|
---|
| 1893 | /* We'll just unmap the memory. */
|
---|
| 1894 | if (pInfo->u2NemState > NEM_WIN_PAGE_STATE_UNMAPPED)
|
---|
| 1895 | {
|
---|
[71087] | 1896 | #ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
|
---|
[71152] | 1897 | int rc = nemHCWinHypercallUnmapPage(pVM, pVCpu, GCPhys);
|
---|
[71075] | 1898 | AssertRC(rc);
|
---|
| 1899 | if (RT_SUCCESS(rc))
|
---|
| 1900 | #else
|
---|
[71040] | 1901 | HRESULT hrc = WHvUnmapGpaRange(pVM->nem.s.hPartition, GCPhys, X86_PAGE_SIZE);
|
---|
| 1902 | if (SUCCEEDED(hrc))
|
---|
[71075] | 1903 | #endif
|
---|
| 1904 | {
|
---|
| 1905 | uint32_t cMappedPages = ASMAtomicDecU32(&pVM->nem.s.cMappedPages); NOREF(cMappedPages);
|
---|
| 1906 | Log5(("NEM GPA unmapped/A20: %RGp (was %s, cMappedPages=%u)\n", GCPhys, g_apszPageStates[pInfo->u2NemState], cMappedPages));
|
---|
[71040] | 1907 | pInfo->u2NemState = NEM_WIN_PAGE_STATE_UNMAPPED;
|
---|
[71075] | 1908 | }
|
---|
[71040] | 1909 | else
|
---|
| 1910 | {
|
---|
[71087] | 1911 | #ifdef NEM_WIN_USE_HYPERCALLS_FOR_PAGES
|
---|
[71075] | 1912 | LogRel(("nemR3WinUnsetForA20CheckerCallback/unmap: GCPhys=%RGp rc=%Rrc\n", GCPhys, rc));
|
---|
| 1913 | return rc;
|
---|
| 1914 | #else
|
---|
[71040] | 1915 | LogRel(("nemR3WinUnsetForA20CheckerCallback/unmap: GCPhys=%RGp hrc=%Rhrc (%#x) Last=%#x/%u\n",
|
---|
[71129] | 1916 | GCPhys, hrc, hrc, RTNtLastStatusValue(), RTNtLastErrorValue()));
|
---|
[71040] | 1917 | return VERR_INTERNAL_ERROR_2;
|
---|
[71075] | 1918 | #endif
|
---|
[71040] | 1919 | }
|
---|
| 1920 | }
|
---|
| 1921 | RT_NOREF(pVCpu, pvUser);
|
---|
| 1922 | return VINF_SUCCESS;
|
---|
| 1923 | }
|
---|
| 1924 |
|
---|
| 1925 |
|
---|
| 1926 | /**
|
---|
| 1927 | * Unmaps a page from Hyper-V for the purpose of emulating A20 gate behavior.
|
---|
| 1928 | *
|
---|
| 1929 | * @returns The PGMPhysNemQueryPageInfo result.
|
---|
| 1930 | * @param pVM The cross context VM structure.
|
---|
[71075] | 1931 | * @param pVCpu The cross context virtual CPU structure.
|
---|
[71040] | 1932 | * @param GCPhys The page to unmap.
|
---|
| 1933 | */
|
---|
[71075] | 1934 | static int nemR3WinUnmapPageForA20Gate(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys)
|
---|
[71040] | 1935 | {
|
---|
| 1936 | PGMPHYSNEMPAGEINFO Info;
|
---|
[71075] | 1937 | return PGMPhysNemPageInfoChecker(pVM, pVCpu, GCPhys, false /*fMakeWritable*/, &Info,
|
---|
[71040] | 1938 | nemR3WinUnsetForA20CheckerCallback, NULL);
|
---|
| 1939 | }
|
---|
| 1940 |
|
---|
| 1941 |
|
---|
| 1942 | /**
|
---|
| 1943 | * Called when the A20 state changes.
|
---|
| 1944 | *
|
---|
| 1945 | * Hyper-V doesn't seem to offer a simple way of implementing the A20 line
|
---|
| 1946 | * features of PCs. So, we do a very minimal emulation of the HMA to make DOS
|
---|
| 1947 | * happy.
|
---|
| 1948 | *
|
---|
| 1949 | * @param pVCpu The CPU the A20 state changed on.
|
---|
| 1950 | * @param fEnabled Whether it was enabled (true) or disabled.
|
---|
| 1951 | */
|
---|
[70954] | 1952 | void nemR3NativeNotifySetA20(PVMCPU pVCpu, bool fEnabled)
|
---|
| 1953 | {
|
---|
[71040] | 1954 | Log(("nemR3NativeNotifySetA20: fEnabled=%RTbool\n", fEnabled));
|
---|
| 1955 | PVM pVM = pVCpu->CTX_SUFF(pVM);
|
---|
| 1956 | if (!pVM->nem.s.fA20Fixed)
|
---|
| 1957 | {
|
---|
| 1958 | pVM->nem.s.fA20Enabled = fEnabled;
|
---|
| 1959 | for (RTGCPHYS GCPhys = _1M; GCPhys < _1M + _64K; GCPhys += X86_PAGE_SIZE)
|
---|
[71075] | 1960 | nemR3WinUnmapPageForA20Gate(pVM, pVCpu, GCPhys);
|
---|
[71040] | 1961 | }
|
---|
[70954] | 1962 | }
|
---|
| 1963 |
|
---|
[71283] | 1964 |
|
---|
| 1965 | /** @page pg_nem_win NEM/win - Native Execution Manager, Windows.
|
---|
| 1966 | *
|
---|
| 1967 | * On Windows the Hyper-V root partition (dom0 in zen terminology) does not have
|
---|
[74616] | 1968 | * nested VT-x or AMD-V capabilities. Early on raw-mode worked inside it, but
|
---|
| 1969 | * for a while now we've been getting \#GPs when trying to modify CR4 in the
|
---|
[71283] | 1970 | * world switcher. So, when Hyper-V is active on Windows we have little choice
|
---|
| 1971 | * but to use Hyper-V to run our VMs.
|
---|
| 1972 | *
|
---|
| 1973 | *
|
---|
| 1974 | * @section sub_nem_win_whv The WinHvPlatform API
|
---|
| 1975 | *
|
---|
| 1976 | * Since Windows 10 build 17083 there is a documented API for managing Hyper-V
|
---|
[74616] | 1977 | * VMs: header file WinHvPlatform.h and implementation in WinHvPlatform.dll.
|
---|
[71283] | 1978 | * This interface is a wrapper around the undocumented Virtualization
|
---|
| 1979 | * Infrastructure Driver (VID) API - VID.DLL and VID.SYS. The wrapper is
|
---|
| 1980 | * written in C++, namespaced, early versions (at least) was using standard C++
|
---|
| 1981 | * container templates in several places.
|
---|
| 1982 | *
|
---|
| 1983 | * When creating a VM using WHvCreatePartition, it will only create the
|
---|
| 1984 | * WinHvPlatform structures for it, to which you get an abstract pointer. The
|
---|
| 1985 | * VID API that actually creates the partition is first engaged when you call
|
---|
| 1986 | * WHvSetupPartition after first setting a lot of properties using
|
---|
| 1987 | * WHvSetPartitionProperty. Since the VID API is just a very thin wrapper
|
---|
[71284] | 1988 | * around CreateFile and NtDeviceIoControlFile, it returns an actual HANDLE for
|
---|
[74616] | 1989 | * the partition to WinHvPlatform. We fish this HANDLE out of the WinHvPlatform
|
---|
[71283] | 1990 | * partition structures because we need to talk directly to VID for reasons
|
---|
| 1991 | * we'll get to in a bit. (Btw. we could also intercept the CreateFileW or
|
---|
[71284] | 1992 | * NtDeviceIoControlFile calls from VID.DLL to get the HANDLE should fishing in
|
---|
| 1993 | * the partition structures become difficult.)
|
---|
[71283] | 1994 | *
|
---|
| 1995 | * The WinHvPlatform API requires us to both set the number of guest CPUs before
|
---|
| 1996 | * setting up the partition and call WHvCreateVirtualProcessor for each of them.
|
---|
| 1997 | * The CPU creation function boils down to a VidMessageSlotMap call that sets up
|
---|
| 1998 | * and maps a message buffer into ring-3 for async communication with hyper-V
|
---|
[71293] | 1999 | * and/or the VID.SYS thread actually running the CPU thru
|
---|
| 2000 | * WinHvRunVpDispatchLoop(). When for instance a VMEXIT is encountered, hyper-V
|
---|
| 2001 | * sends a message that the WHvRunVirtualProcessor API retrieves (and later
|
---|
[74616] | 2002 | * acknowledges) via VidMessageSlotHandleAndGetNext. Since or about build
|
---|
| 2003 | * 17757 a register page is also mapped into user space when creating the
|
---|
| 2004 | * virtual CPU. It should be noteded that WHvDeleteVirtualProcessor doesn't do
|
---|
| 2005 | * much as there seems to be no partner function VidMessagesSlotMap that
|
---|
| 2006 | * reverses what it did.
|
---|
[71283] | 2007 | *
|
---|
| 2008 | * Memory is managed thru calls to WHvMapGpaRange and WHvUnmapGpaRange (GPA does
|
---|
| 2009 | * not mean grade point average here, but rather guest physical addressspace),
|
---|
| 2010 | * which corresponds to VidCreateVaGpaRangeSpecifyUserVa and VidDestroyGpaRange
|
---|
| 2011 | * respectively. As 'UserVa' indicates, the functions works on user process
|
---|
| 2012 | * memory. The mappings are also subject to quota restrictions, so the number
|
---|
| 2013 | * of ranges are limited and probably their total size as well. Obviously
|
---|
| 2014 | * VID.SYS keeps track of the ranges, but so does WinHvPlatform, which means
|
---|
[74616] | 2015 | * there is a bit of overhead involved and quota restrctions makes sense.
|
---|
[71283] | 2016 | *
|
---|
[74616] | 2017 | * Running guest code is done through the WHvRunVirtualProcessor function. It
|
---|
[71283] | 2018 | * asynchronously starts or resumes hyper-V CPU execution and then waits for an
|
---|
| 2019 | * VMEXIT message. Hyper-V / VID.SYS will return information about the message
|
---|
| 2020 | * in the message buffer mapping, and WHvRunVirtualProcessor will convert that
|
---|
[71293] | 2021 | * finto it's own WHV_RUN_VP_EXIT_CONTEXT format.
|
---|
[71283] | 2022 | *
|
---|
| 2023 | * Other threads can interrupt the execution by using WHvCancelVirtualProcessor,
|
---|
[74616] | 2024 | * which since or about build 17757 uses VidMessageSlotHandleAndGetNext to do
|
---|
| 2025 | * the work (earlier builds would open the waiting thread, do a dummy
|
---|
| 2026 | * QueueUserAPC on it, and let it upon return use VidStopVirtualProcessor to
|
---|
| 2027 | * do the actual stopping). While there is certainly a race between cancelation
|
---|
| 2028 | * and the CPU causing a natural VMEXIT, it is not known whether this still
|
---|
| 2029 | * causes extra work on subsequent WHvRunVirtualProcessor calls (it did in and
|
---|
| 2030 | * earlier 17134).
|
---|
[71283] | 2031 | *
|
---|
| 2032 | * Registers are retrieved and set via WHvGetVirtualProcessorRegisters and
|
---|
| 2033 | * WHvSetVirtualProcessorRegisters. In addition, several VMEXITs include
|
---|
| 2034 | * essential register state in the exit context information, potentially making
|
---|
| 2035 | * it possible to emulate the instruction causing the exit without involving
|
---|
| 2036 | * WHvGetVirtualProcessorRegisters.
|
---|
| 2037 | *
|
---|
| 2038 | *
|
---|
[71286] | 2039 | * @subsection subsec_nem_win_whv_cons Issues & Feedback
|
---|
[71283] | 2040 | *
|
---|
| 2041 | * Here are some observations (mostly against build 17101):
|
---|
| 2042 | *
|
---|
[72358] | 2043 | * - The VMEXIT performance is dismal (build 17134).
|
---|
[71284] | 2044 | *
|
---|
| 2045 | * Our proof of concept implementation with a kernel runloop (i.e. not using
|
---|
| 2046 | * WHvRunVirtualProcessor and friends, but calling VID.SYS fast I/O control
|
---|
| 2047 | * entry point directly) delivers 9-10% of the port I/O performance and only
|
---|
| 2048 | * 6-7% of the MMIO performance that we have with our own hypervisor.
|
---|
| 2049 | *
|
---|
| 2050 | * When using the offical WinHvPlatform API, the numbers are %3 for port I/O
|
---|
| 2051 | * and 5% for MMIO.
|
---|
| 2052 | *
|
---|
[71293] | 2053 | * While the tests we've done are using tight tight loops only doing port I/O
|
---|
| 2054 | * and MMIO, the problem is clearly visible when running regular guest OSes.
|
---|
| 2055 | * Anything that hammers the VGA device would be suffering, for example:
|
---|
[71284] | 2056 | *
|
---|
[71293] | 2057 | * - Windows 2000 boot screen animation overloads us with MMIO exits
|
---|
| 2058 | * and won't even boot because all the time is spent in interrupt
|
---|
| 2059 | * handlers and redrawin the screen.
|
---|
| 2060 | *
|
---|
| 2061 | * - DSL 4.4 and its bootmenu logo is slower than molasses in january.
|
---|
| 2062 | *
|
---|
| 2063 | * We have not found a workaround for this yet.
|
---|
| 2064 | *
|
---|
| 2065 | * Something that might improve the issue a little is to detect blocks with
|
---|
| 2066 | * excessive MMIO and port I/O exits and emulate instructions to cover
|
---|
| 2067 | * multiple exits before letting Hyper-V have a go at the guest execution
|
---|
| 2068 | * again. This will only improve the situation under some circumstances,
|
---|
| 2069 | * since emulating instructions without recompilation can be expensive, so
|
---|
| 2070 | * there will only be real gains if the exitting instructions are tightly
|
---|
| 2071 | * packed.
|
---|
| 2072 | *
|
---|
[74616] | 2073 | * Update: Security fixes during the summer of 2018 caused the performance to
|
---|
| 2074 | * dropped even more.
|
---|
[71293] | 2075 | *
|
---|
[74588] | 2076 | * Update [build 17757]: Some performance improvements here, but they don't
|
---|
| 2077 | * yet make up for what was lost this summer.
|
---|
| 2078 | *
|
---|
| 2079 | *
|
---|
[72546] | 2080 | * - We need a way to directly modify the TSC offset (or bias if you like).
|
---|
[72358] | 2081 | *
|
---|
[72546] | 2082 | * The current approach of setting the WHvX64RegisterTsc register one by one
|
---|
| 2083 | * on each virtual CPU in sequence will introduce random inaccuracies,
|
---|
| 2084 | * especially if the thread doing the job is reschduled at a bad time.
|
---|
[72358] | 2085 | *
|
---|
[72541] | 2086 | *
|
---|
| 2087 | * - Unable to access WHvX64RegisterMsrMtrrCap (build 17134).
|
---|
| 2088 | *
|
---|
| 2089 | *
|
---|
[72358] | 2090 | * - On AMD Ryzen grub/debian 9.0 ends up with a unrecoverable exception
|
---|
| 2091 | * when IA32_MTRR_PHYSMASK0 is written.
|
---|
| 2092 | *
|
---|
| 2093 | *
|
---|
[72415] | 2094 | * - The IA32_APIC_BASE register does not work right:
|
---|
[72358] | 2095 | *
|
---|
[72415] | 2096 | * - Attempts by the guest to clear bit 11 (EN) are ignored, both the
|
---|
| 2097 | * guest and the VMM reads back the old value.
|
---|
[72358] | 2098 | *
|
---|
[72415] | 2099 | * - Attempts to modify the base address (bits NN:12) seems to be ignored
|
---|
| 2100 | * in the same way.
|
---|
| 2101 | *
|
---|
| 2102 | * - The VMM can modify both the base address as well as the the EN and
|
---|
| 2103 | * BSP bits, however this is useless if we cannot intercept the WRMSR.
|
---|
| 2104 | *
|
---|
[72430] | 2105 | * - Attempts by the guest to set the EXTD bit (X2APIC) result in \#GP(0),
|
---|
[72415] | 2106 | * while the VMM ends up with with ERROR_HV_INVALID_PARAMETER. Seems
|
---|
| 2107 | * there is no way to support X2APIC.
|
---|
| 2108 | *
|
---|
| 2109 | *
|
---|
[71283] | 2110 | * - Not sure if this is a thing, but WHvCancelVirtualProcessor seems to cause
|
---|
| 2111 | * cause a lot more spurious WHvRunVirtualProcessor returns that what we get
|
---|
| 2112 | * with the replacement code. By spurious returns we mean that the
|
---|
| 2113 | * subsequent call to WHvRunVirtualProcessor would return immediately.
|
---|
| 2114 | *
|
---|
[74616] | 2115 | * Update [build 17757]: New cancelation code might have addressed this, but
|
---|
| 2116 | * haven't had time to test it yet.
|
---|
[71283] | 2117 | *
|
---|
[74616] | 2118 | *
|
---|
[71283] | 2119 | * - There is no API for modifying protection of a page within a GPA range.
|
---|
| 2120 | *
|
---|
| 2121 | * From what we can tell, the only way to modify the protection (like readonly
|
---|
| 2122 | * -> writable, or vice versa) is to first unmap the range and then remap it
|
---|
| 2123 | * with the new protection.
|
---|
| 2124 | *
|
---|
| 2125 | * We are for instance doing this quite a bit in order to track dirty VRAM
|
---|
| 2126 | * pages. VRAM pages starts out as readonly, when the guest writes to a page
|
---|
| 2127 | * we take an exit, notes down which page it is, makes it writable and restart
|
---|
| 2128 | * the instruction. After refreshing the display, we reset all the writable
|
---|
| 2129 | * pages to readonly again, bulk fashion.
|
---|
| 2130 | *
|
---|
| 2131 | * Now to work around this issue, we do page sized GPA ranges. In addition to
|
---|
| 2132 | * add a lot of tracking overhead to WinHvPlatform and VID.SYS, this also
|
---|
| 2133 | * causes us to exceed our quota before we've even mapped a default sized
|
---|
| 2134 | * (128MB) VRAM page-by-page. So, to work around this quota issue we have to
|
---|
| 2135 | * lazily map pages and actively restrict the number of mappings.
|
---|
| 2136 | *
|
---|
| 2137 | * Our best workaround thus far is bypassing WinHvPlatform and VID entirely
|
---|
| 2138 | * when in comes to guest memory management and instead use the underlying
|
---|
| 2139 | * hypercalls (HvCallMapGpaPages, HvCallUnmapGpaPages) to do it ourselves.
|
---|
| 2140 | * (This also maps a whole lot better into our own guest page management
|
---|
| 2141 | * infrastructure.)
|
---|
| 2142 | *
|
---|
[74588] | 2143 | * Update [build 17757]: Introduces a KVM like dirty logging API which could
|
---|
| 2144 | * help tracking dirty VGA pages, while being useless for shadow ROM and
|
---|
| 2145 | * devices trying catch the guest updating descriptors and such.
|
---|
[71283] | 2146 | *
|
---|
[74588] | 2147 | *
|
---|
[71283] | 2148 | * - Observed problems doing WHvUnmapGpaRange immediately followed by
|
---|
| 2149 | * WHvMapGpaRange.
|
---|
| 2150 | *
|
---|
| 2151 | * As mentioned above, we've been forced to use this sequence when modifying
|
---|
| 2152 | * page protection. However, when transitioning from readonly to writable,
|
---|
| 2153 | * we've ended up looping forever with the same write to readonly memory
|
---|
| 2154 | * VMEXIT. We're wondering if this issue might be related to the lazy mapping
|
---|
| 2155 | * logic in WinHvPlatform.
|
---|
| 2156 | *
|
---|
| 2157 | * Workaround: Insert a WHvRunVirtualProcessor call and make sure to get a GPA
|
---|
| 2158 | * unmapped exit between the two calls. Not entirely great performance wise
|
---|
| 2159 | * (or the santity of our code).
|
---|
| 2160 | *
|
---|
| 2161 | *
|
---|
[71289] | 2162 | * - Implementing A20 gate behavior is tedious, where as correctly emulating the
|
---|
| 2163 | * A20M# pin (present on 486 and later) is near impossible for SMP setups
|
---|
| 2164 | * (e.g. possiblity of two CPUs with different A20 status).
|
---|
| 2165 | *
|
---|
| 2166 | * Workaround: Only do A20 on CPU 0, restricting the emulation to HMA. We
|
---|
| 2167 | * unmap all pages related to HMA (0x100000..0x10ffff) when the A20 state
|
---|
| 2168 | * changes, lazily syncing the right pages back when accessed.
|
---|
| 2169 | *
|
---|
| 2170 | *
|
---|
[71283] | 2171 | * - WHVRunVirtualProcessor wastes time converting VID/Hyper-V messages to its
|
---|
| 2172 | * own format (WHV_RUN_VP_EXIT_CONTEXT).
|
---|
| 2173 | *
|
---|
| 2174 | * We understand this might be because Microsoft wishes to remain free to
|
---|
| 2175 | * modify the VID/Hyper-V messages, but it's still rather silly and does slow
|
---|
| 2176 | * things down a little. We'd much rather just process the messages directly.
|
---|
| 2177 | *
|
---|
| 2178 | *
|
---|
| 2179 | * - WHVRunVirtualProcessor would've benefited from using a callback interface:
|
---|
| 2180 | *
|
---|
| 2181 | * - The potential size changes of the exit context structure wouldn't be
|
---|
| 2182 | * an issue, since the function could manage that itself.
|
---|
| 2183 | *
|
---|
| 2184 | * - State handling could probably be simplified (like cancelation).
|
---|
| 2185 | *
|
---|
| 2186 | *
|
---|
| 2187 | * - WHvGetVirtualProcessorRegisters and WHvSetVirtualProcessorRegisters
|
---|
| 2188 | * internally converts register names, probably using temporary heap buffers.
|
---|
| 2189 | *
|
---|
| 2190 | * From the looks of things, they are converting from WHV_REGISTER_NAME to
|
---|
| 2191 | * HV_REGISTER_NAME from in the "Virtual Processor Register Names" section in
|
---|
| 2192 | * the "Hypervisor Top-Level Functional Specification" document. This feels
|
---|
| 2193 | * like an awful waste of time.
|
---|
| 2194 | *
|
---|
| 2195 | * We simply cannot understand why HV_REGISTER_NAME isn't used directly here,
|
---|
| 2196 | * or at least the same values, making any conversion reduntant. Restricting
|
---|
| 2197 | * access to certain registers could easily be implement by scanning the
|
---|
| 2198 | * inputs.
|
---|
| 2199 | *
|
---|
| 2200 | * To avoid the heap + conversion overhead, we're currently using the
|
---|
[74588] | 2201 | * HvCallGetVpRegisters and HvCallSetVpRegisters calls directly, at least for
|
---|
| 2202 | * the ring-0 code.
|
---|
[71283] | 2203 | *
|
---|
[74588] | 2204 | * Update [build 17757]: Register translation has been very cleverly
|
---|
| 2205 | * optimized and made table driven (2 top level tables, 4 + 1 leaf tables).
|
---|
| 2206 | * Register information consists of the 32-bit HV register name, register page
|
---|
| 2207 | * offset, and flags (giving valid offset, size and more). Register
|
---|
| 2208 | * getting/settings seems to be done by hoping that the register page provides
|
---|
| 2209 | * it all, and falling back on the VidSetVirtualProcessorState if one or more
|
---|
| 2210 | * registers are not available there.
|
---|
[71283] | 2211 | *
|
---|
[74588] | 2212 | * Note! We have currently not updated our ring-0 code to take the register
|
---|
| 2213 | * page into account, so it's suffering a little compared to the ring-3 code
|
---|
| 2214 | * that now uses the offical APIs for registers.
|
---|
| 2215 | *
|
---|
| 2216 | *
|
---|
[71283] | 2217 | * - The YMM and XCR0 registers are not yet named (17083). This probably
|
---|
| 2218 | * wouldn't be a problem if HV_REGISTER_NAME was used, see previous point.
|
---|
| 2219 | *
|
---|
[74588] | 2220 | * Update [build 17757]: XCR0 is added. YMM register values seems to be put
|
---|
| 2221 | * into a yet undocumented XsaveState interface. Approach is a little bulky,
|
---|
| 2222 | * but saves number of enums and dispenses with register transation. Also,
|
---|
| 2223 | * the underlying Vid setter API duplicates the input buffer on the heap,
|
---|
| 2224 | * adding a 16 byte header.
|
---|
[71283] | 2225 | *
|
---|
[74588] | 2226 | *
|
---|
[71293] | 2227 | * - Why does VID.SYS only query/set 32 registers at the time thru the
|
---|
| 2228 | * HvCallGetVpRegisters and HvCallSetVpRegisters hypercalls?
|
---|
[71283] | 2229 | *
|
---|
| 2230 | * We've not trouble getting/setting all the registers defined by
|
---|
[71293] | 2231 | * WHV_REGISTER_NAME in one hypercall (around 80). Some kind of stack
|
---|
| 2232 | * buffering or similar?
|
---|
[71283] | 2233 | *
|
---|
| 2234 | *
|
---|
[72420] | 2235 | * - To handle the VMMCALL / VMCALL instructions, it seems we need to intercept
|
---|
| 2236 | * \#UD exceptions and inspect the opcodes. A dedicated exit for hypercalls
|
---|
| 2237 | * would be more efficient, esp. for guests using \#UD for other purposes..
|
---|
| 2238 | *
|
---|
| 2239 | *
|
---|
[71297] | 2240 | * - Wrong instruction length in the VpContext with unmapped GPA memory exit
|
---|
| 2241 | * contexts on 17115/AMD.
|
---|
| 2242 | *
|
---|
| 2243 | * One byte "PUSH CS" was reported as 2 bytes, while a two byte
|
---|
| 2244 | * "MOV [EBX],EAX" was reported with a 1 byte instruction length. Problem
|
---|
| 2245 | * naturally present in untranslated hyper-v messages.
|
---|
| 2246 | *
|
---|
| 2247 | *
|
---|
[71283] | 2248 | * - The I/O port exit context information seems to be missing the address size
|
---|
| 2249 | * information needed for correct string I/O emulation.
|
---|
| 2250 | *
|
---|
| 2251 | * VT-x provides this information in bits 7:9 in the instruction information
|
---|
| 2252 | * field on newer CPUs. AMD-V in bits 7:9 in the EXITINFO1 field in the VMCB.
|
---|
| 2253 | *
|
---|
| 2254 | * We can probably work around this by scanning the instruction bytes for
|
---|
| 2255 | * address size prefixes. Haven't investigated it any further yet.
|
---|
| 2256 | *
|
---|
| 2257 | *
|
---|
[72541] | 2258 | * - Querying WHvCapabilityCodeExceptionExitBitmap returns zero even when
|
---|
[72475] | 2259 | * intercepts demonstrably works (17134).
|
---|
| 2260 | *
|
---|
| 2261 | *
|
---|
[72541] | 2262 | * - Querying HvPartitionPropertyDebugChannelId via HvCallGetPartitionProperty
|
---|
| 2263 | * (hypercall) hangs the host (17134).
|
---|
| 2264 | *
|
---|
| 2265 | *
|
---|
[74588] | 2266 | *
|
---|
| 2267 | * Old concerns that have been addressed:
|
---|
| 2268 | *
|
---|
| 2269 | * - The WHvCancelVirtualProcessor API schedules a dummy usermode APC callback
|
---|
| 2270 | * in order to cancel any current or future alertable wait in VID.SYS during
|
---|
| 2271 | * the VidMessageSlotHandleAndGetNext call.
|
---|
| 2272 | *
|
---|
| 2273 | * IIRC this will make the kernel schedule the specified callback thru
|
---|
| 2274 | * NTDLL!KiUserApcDispatcher by modifying the thread context and quite
|
---|
| 2275 | * possibly the userland thread stack. When the APC callback returns to
|
---|
| 2276 | * KiUserApcDispatcher, it will call NtContinue to restore the old thread
|
---|
| 2277 | * context and resume execution from there. This naturally adds up to some
|
---|
| 2278 | * CPU cycles, ring transitions aren't for free, especially after Spectre &
|
---|
| 2279 | * Meltdown mitigations.
|
---|
| 2280 | *
|
---|
| 2281 | * Using NtAltertThread call could do the same without the thread context
|
---|
| 2282 | * modifications and the extra kernel call.
|
---|
| 2283 | *
|
---|
| 2284 | * Update: All concerns have addressed in or about build 17757.
|
---|
| 2285 | *
|
---|
| 2286 | * The WHvCancelVirtualProcessor API is now implemented using a new
|
---|
| 2287 | * VidMessageSlotHandleAndGetNext() flag (4). Codepath is slightly longer
|
---|
| 2288 | * than NtAlertThread, but has the added benefit that spurious wakeups can be
|
---|
| 2289 | * more easily reduced.
|
---|
| 2290 | *
|
---|
| 2291 | *
|
---|
| 2292 | * - When WHvRunVirtualProcessor returns without a message, or on a terse
|
---|
| 2293 | * VID message like HLT, it will make a kernel call to get some registers.
|
---|
| 2294 | * This is potentially inefficient if the caller decides he needs more
|
---|
| 2295 | * register state.
|
---|
| 2296 | *
|
---|
| 2297 | * It would be better to just return what's available and let the caller fetch
|
---|
| 2298 | * what is missing from his point of view in a single kernel call.
|
---|
| 2299 | *
|
---|
| 2300 | * Update: All concerns have been addressed in or about build 17757. Selected
|
---|
| 2301 | * registers are now available via shared memory and thus HLT should (not
|
---|
| 2302 | * verified) no longer require a system call to compose the exit context data.
|
---|
| 2303 | *
|
---|
| 2304 | *
|
---|
| 2305 | * - The WHvRunVirtualProcessor implementation does lazy GPA range mappings when
|
---|
| 2306 | * a unmapped GPA message is received from hyper-V.
|
---|
| 2307 | *
|
---|
| 2308 | * Since MMIO is currently realized as unmapped GPA, this will slow down all
|
---|
| 2309 | * MMIO accesses a tiny little bit as WHvRunVirtualProcessor looks up the
|
---|
| 2310 | * guest physical address to check if it is a pending lazy mapping.
|
---|
| 2311 | *
|
---|
| 2312 | * The lazy mapping feature makes no sense to us. We as API user have all the
|
---|
| 2313 | * information and can do lazy mapping ourselves if we want/have to (see next
|
---|
| 2314 | * point).
|
---|
| 2315 | *
|
---|
| 2316 | * Update: All concerns have been addressed in or about build 17757.
|
---|
| 2317 | *
|
---|
| 2318 | *
|
---|
[71283] | 2319 | * - The WHvGetCapability function has a weird design:
|
---|
| 2320 | * - The CapabilityCode parameter is pointlessly duplicated in the output
|
---|
| 2321 | * structure (WHV_CAPABILITY).
|
---|
| 2322 | *
|
---|
| 2323 | * - API takes void pointer, but everyone will probably be using
|
---|
| 2324 | * WHV_CAPABILITY due to WHV_CAPABILITY::CapabilityCode making it
|
---|
| 2325 | * impractical to use anything else.
|
---|
| 2326 | *
|
---|
| 2327 | * - No output size.
|
---|
| 2328 | *
|
---|
| 2329 | * - See GetFileAttributesEx, GetFileInformationByHandleEx,
|
---|
| 2330 | * FindFirstFileEx, and others for typical pattern for generic
|
---|
| 2331 | * information getters.
|
---|
| 2332 | *
|
---|
[71296] | 2333 | * Update: All concerns have been addressed in build 17110.
|
---|
[71283] | 2334 | *
|
---|
[71296] | 2335 | *
|
---|
[71283] | 2336 | * - The WHvGetPartitionProperty function uses the same weird design as
|
---|
| 2337 | * WHvGetCapability, see above.
|
---|
| 2338 | *
|
---|
[71296] | 2339 | * Update: All concerns have been addressed in build 17110.
|
---|
[71283] | 2340 | *
|
---|
[71296] | 2341 | *
|
---|
[71283] | 2342 | * - The WHvSetPartitionProperty function has a totally weird design too:
|
---|
| 2343 | * - In contrast to its partner WHvGetPartitionProperty, the property code
|
---|
| 2344 | * is not a separate input parameter here but part of the input
|
---|
| 2345 | * structure.
|
---|
| 2346 | *
|
---|
| 2347 | * - The input structure is a void pointer rather than a pointer to
|
---|
| 2348 | * WHV_PARTITION_PROPERTY which everyone probably will be using because
|
---|
| 2349 | * of the WHV_PARTITION_PROPERTY::PropertyCode field.
|
---|
| 2350 | *
|
---|
| 2351 | * - Really, why use PVOID for the input when the function isn't accepting
|
---|
| 2352 | * minimal sizes. E.g. WHVPartitionPropertyCodeProcessorClFlushSize only
|
---|
| 2353 | * requires a 9 byte input, but the function insists on 16 bytes (17083).
|
---|
| 2354 | *
|
---|
| 2355 | * - See GetFileAttributesEx, SetFileInformationByHandle, FindFirstFileEx,
|
---|
| 2356 | * and others for typical pattern for generic information setters and
|
---|
| 2357 | * getters.
|
---|
| 2358 | *
|
---|
[71296] | 2359 | * Update: All concerns have been addressed in build 17110.
|
---|
[71283] | 2360 | *
|
---|
[71296] | 2361 | *
|
---|
| 2362 | *
|
---|
[71283] | 2363 | * @section sec_nem_win_impl Our implementation.
|
---|
| 2364 | *
|
---|
[71284] | 2365 | * We set out with the goal of wanting to run as much as possible in ring-0,
|
---|
| 2366 | * reasoning that this would give use the best performance.
|
---|
[71283] | 2367 | *
|
---|
[71284] | 2368 | * This goal was approached gradually, starting out with a pure WinHvPlatform
|
---|
| 2369 | * implementation, gradually replacing parts: register access, guest memory
|
---|
| 2370 | * handling, running virtual processors. Then finally moving it all into
|
---|
| 2371 | * ring-0, while keeping most of it configurable so that we could make
|
---|
| 2372 | * comparisons (see NEMInternal.h and nemR3NativeRunGC()).
|
---|
[71283] | 2373 | *
|
---|
[71284] | 2374 | *
|
---|
| 2375 | * @subsection subsect_nem_win_impl_ioctl VID.SYS I/O control calls
|
---|
| 2376 | *
|
---|
| 2377 | * To run things in ring-0 we need to talk directly to VID.SYS thru its I/O
|
---|
| 2378 | * control interface. Looking at changes between like build 17083 and 17101 (if
|
---|
| 2379 | * memory serves) a set of the VID I/O control numbers shifted a little, which
|
---|
| 2380 | * means we need to determin them dynamically. We currently do this by hooking
|
---|
| 2381 | * the NtDeviceIoControlFile API call from VID.DLL and snooping up the
|
---|
| 2382 | * parameters when making dummy calls to relevant APIs. (We could also
|
---|
| 2383 | * disassemble the relevant APIs and try fish out the information from that, but
|
---|
| 2384 | * this is way simpler.)
|
---|
| 2385 | *
|
---|
| 2386 | * Issuing I/O control calls from ring-0 is facing a small challenge with
|
---|
| 2387 | * respect to direct buffering. When using direct buffering the device will
|
---|
| 2388 | * typically check that the buffer is actually in the user address space range
|
---|
| 2389 | * and reject kernel addresses. Fortunately, we've got the cross context VM
|
---|
| 2390 | * structure that is mapped into both kernel and user space, it's also locked
|
---|
| 2391 | * and safe to access from kernel space. So, we place the I/O control buffers
|
---|
| 2392 | * in the per-CPU part of it (NEMCPU::uIoCtlBuf) and give the driver the user
|
---|
| 2393 | * address if direct access buffering or kernel address if not.
|
---|
| 2394 | *
|
---|
| 2395 | * The I/O control calls are 'abstracted' in the support driver, see
|
---|
[72188] | 2396 | * SUPR0IoCtlSetupForHandle(), SUPR0IoCtlPerform() and SUPR0IoCtlCleanup().
|
---|
[71284] | 2397 | *
|
---|
| 2398 | *
|
---|
| 2399 | * @subsection subsect_nem_win_impl_cpumctx CPUMCTX
|
---|
| 2400 | *
|
---|
| 2401 | * Since the CPU state needs to live in Hyper-V when executing, we probably
|
---|
| 2402 | * should not transfer more than necessary when handling VMEXITs. To help us
|
---|
| 2403 | * manage this CPUMCTX got a new field CPUMCTX::fExtrn that to indicate which
|
---|
| 2404 | * part of the state is currently externalized (== in Hyper-V).
|
---|
| 2405 | *
|
---|
| 2406 | *
|
---|
[72669] | 2407 | * @subsection sec_nem_win_benchmarks Benchmarks.
|
---|
| 2408 | *
|
---|
[74588] | 2409 | * @subsubsection subsect_nem_win_benchmarks_bs2t1 17134/2018-06-22: Bootsector2-test1
|
---|
[72669] | 2410 | *
|
---|
| 2411 | * This is ValidationKit/bootsectors/bootsector2-test1.asm as of 2018-06-22
|
---|
| 2412 | * (internal r123172) running a the release build of VirtualBox from the same
|
---|
| 2413 | * source, though with exit optimizations disabled. Host is AMD Threadripper 1950X
|
---|
| 2414 | * running out an up to date 64-bit Windows 10 build 17134.
|
---|
| 2415 | *
|
---|
| 2416 | * The base line column is using the official WinHv API for everything but physical
|
---|
| 2417 | * memory mapping. The 2nd column is the default NEM/win configuration where we
|
---|
| 2418 | * put the main execution loop in ring-0, using hypercalls when we can and VID for
|
---|
| 2419 | * managing execution. The 3rd column is regular VirtualBox using AMD-V directly,
|
---|
| 2420 | * hyper-V is disabled, main execution loop in ring-0.
|
---|
| 2421 | *
|
---|
| 2422 | * @verbatim
|
---|
| 2423 | TESTING... WinHv API Hypercalls + VID VirtualBox AMD-V
|
---|
| 2424 | 32-bit paged protected mode, CPUID : 108 874 ins/sec 113% / 123 602 1198% / 1 305 113
|
---|
| 2425 | 32-bit pae protected mode, CPUID : 106 722 ins/sec 115% / 122 740 1232% / 1 315 201
|
---|
| 2426 | 64-bit long mode, CPUID : 106 798 ins/sec 114% / 122 111 1198% / 1 280 404
|
---|
| 2427 | 16-bit unpaged protected mode, CPUID : 106 835 ins/sec 114% / 121 994 1216% / 1 299 665
|
---|
| 2428 | 32-bit unpaged protected mode, CPUID : 105 257 ins/sec 115% / 121 772 1235% / 1 300 860
|
---|
| 2429 | real mode, CPUID : 104 507 ins/sec 116% / 121 800 1228% / 1 283 848
|
---|
| 2430 | CPUID EAX=1 : PASSED
|
---|
| 2431 | 32-bit paged protected mode, RDTSC : 99 581 834 ins/sec 100% / 100 323 307 93% / 93 473 299
|
---|
| 2432 | 32-bit pae protected mode, RDTSC : 99 620 585 ins/sec 100% / 99 960 952 84% / 83 968 839
|
---|
| 2433 | 64-bit long mode, RDTSC : 100 540 009 ins/sec 100% / 100 946 372 93% / 93 652 826
|
---|
| 2434 | 16-bit unpaged protected mode, RDTSC : 99 688 473 ins/sec 100% / 100 097 751 76% / 76 281 287
|
---|
| 2435 | 32-bit unpaged protected mode, RDTSC : 98 385 857 ins/sec 102% / 100 510 404 94% / 93 379 536
|
---|
| 2436 | real mode, RDTSC : 100 087 967 ins/sec 101% / 101 386 138 93% / 93 234 999
|
---|
| 2437 | RDTSC : PASSED
|
---|
| 2438 | 32-bit paged protected mode, Read CR4 : 2 156 102 ins/sec 98% / 2 121 967 17114% / 369 009 009
|
---|
| 2439 | 32-bit pae protected mode, Read CR4 : 2 163 820 ins/sec 98% / 2 133 804 17469% / 377 999 261
|
---|
| 2440 | 64-bit long mode, Read CR4 : 2 164 822 ins/sec 98% / 2 128 698 18875% / 408 619 313
|
---|
| 2441 | 16-bit unpaged protected mode, Read CR4 : 2 162 367 ins/sec 100% / 2 168 508 17132% / 370 477 568
|
---|
| 2442 | 32-bit unpaged protected mode, Read CR4 : 2 163 189 ins/sec 100% / 2 169 808 16768% / 362 734 679
|
---|
| 2443 | real mode, Read CR4 : 2 162 436 ins/sec 100% / 2 164 914 15551% / 336 288 998
|
---|
| 2444 | Read CR4 : PASSED
|
---|
| 2445 | real mode, 32-bit IN : 104 649 ins/sec 118% / 123 513 1028% / 1 075 831
|
---|
| 2446 | real mode, 32-bit OUT : 107 102 ins/sec 115% / 123 660 982% / 1 052 259
|
---|
| 2447 | real mode, 32-bit IN-to-ring-3 : 105 697 ins/sec 98% / 104 471 201% / 213 216
|
---|
| 2448 | real mode, 32-bit OUT-to-ring-3 : 105 830 ins/sec 98% / 104 598 198% / 210 495
|
---|
| 2449 | 16-bit unpaged protected mode, 32-bit IN : 104 855 ins/sec 117% / 123 174 1029% / 1 079 591
|
---|
| 2450 | 16-bit unpaged protected mode, 32-bit OUT : 107 529 ins/sec 115% / 124 250 992% / 1 067 053
|
---|
| 2451 | 16-bit unpaged protected mode, 32-bit IN-to-ring-3 : 106 337 ins/sec 103% / 109 565 196% / 209 367
|
---|
| 2452 | 16-bit unpaged protected mode, 32-bit OUT-to-ring-3 : 107 558 ins/sec 100% / 108 237 191% / 206 387
|
---|
| 2453 | 32-bit unpaged protected mode, 32-bit IN : 106 351 ins/sec 116% / 123 584 1016% / 1 081 325
|
---|
| 2454 | 32-bit unpaged protected mode, 32-bit OUT : 106 424 ins/sec 116% / 124 252 995% / 1 059 408
|
---|
| 2455 | 32-bit unpaged protected mode, 32-bit IN-to-ring-3 : 104 035 ins/sec 101% / 105 305 202% / 210 750
|
---|
| 2456 | 32-bit unpaged protected mode, 32-bit OUT-to-ring-3 : 103 831 ins/sec 102% / 106 919 205% / 213 198
|
---|
| 2457 | 32-bit paged protected mode, 32-bit IN : 103 356 ins/sec 119% / 123 870 1041% / 1 076 463
|
---|
| 2458 | 32-bit paged protected mode, 32-bit OUT : 107 177 ins/sec 115% / 124 302 998% / 1 069 655
|
---|
| 2459 | 32-bit paged protected mode, 32-bit IN-to-ring-3 : 104 491 ins/sec 100% / 104 744 200% / 209 264
|
---|
| 2460 | 32-bit paged protected mode, 32-bit OUT-to-ring-3 : 106 603 ins/sec 97% / 103 849 197% / 210 219
|
---|
| 2461 | 32-bit pae protected mode, 32-bit IN : 105 923 ins/sec 115% / 122 759 1041% / 1 103 261
|
---|
| 2462 | 32-bit pae protected mode, 32-bit OUT : 107 083 ins/sec 117% / 126 057 1024% / 1 096 667
|
---|
| 2463 | 32-bit pae protected mode, 32-bit IN-to-ring-3 : 106 114 ins/sec 97% / 103 496 199% / 211 312
|
---|
| 2464 | 32-bit pae protected mode, 32-bit OUT-to-ring-3 : 105 675 ins/sec 96% / 102 096 198% / 209 890
|
---|
| 2465 | 64-bit long mode, 32-bit IN : 105 800 ins/sec 113% / 120 006 1013% / 1 072 116
|
---|
| 2466 | 64-bit long mode, 32-bit OUT : 105 635 ins/sec 113% / 120 375 997% / 1 053 655
|
---|
| 2467 | 64-bit long mode, 32-bit IN-to-ring-3 : 105 274 ins/sec 95% / 100 763 197% / 208 026
|
---|
| 2468 | 64-bit long mode, 32-bit OUT-to-ring-3 : 106 262 ins/sec 94% / 100 749 196% / 209 288
|
---|
| 2469 | NOP I/O Port Access : PASSED
|
---|
| 2470 | 32-bit paged protected mode, 32-bit read : 57 687 ins/sec 119% / 69 136 1197% / 690 548
|
---|
| 2471 | 32-bit paged protected mode, 32-bit write : 57 957 ins/sec 118% / 68 935 1183% / 685 930
|
---|
| 2472 | 32-bit paged protected mode, 32-bit read-to-ring-3 : 57 958 ins/sec 95% / 55 432 276% / 160 505
|
---|
| 2473 | 32-bit paged protected mode, 32-bit write-to-ring-3 : 57 922 ins/sec 100% / 58 340 304% / 176 464
|
---|
| 2474 | 32-bit pae protected mode, 32-bit read : 57 478 ins/sec 119% / 68 453 1141% / 656 159
|
---|
| 2475 | 32-bit pae protected mode, 32-bit write : 57 226 ins/sec 118% / 68 097 1157% / 662 504
|
---|
| 2476 | 32-bit pae protected mode, 32-bit read-to-ring-3 : 57 582 ins/sec 94% / 54 651 268% / 154 867
|
---|
| 2477 | 32-bit pae protected mode, 32-bit write-to-ring-3 : 57 697 ins/sec 100% / 57 750 299% / 173 030
|
---|
| 2478 | 64-bit long mode, 32-bit read : 57 128 ins/sec 118% / 67 779 1071% / 611 949
|
---|
| 2479 | 64-bit long mode, 32-bit write : 57 127 ins/sec 118% / 67 632 1084% / 619 395
|
---|
| 2480 | 64-bit long mode, 32-bit read-to-ring-3 : 57 181 ins/sec 94% / 54 123 265% / 151 937
|
---|
| 2481 | 64-bit long mode, 32-bit write-to-ring-3 : 57 297 ins/sec 99% / 57 286 294% / 168 694
|
---|
| 2482 | 16-bit unpaged protected mode, 32-bit read : 58 827 ins/sec 118% / 69 545 1185% / 697 602
|
---|
| 2483 | 16-bit unpaged protected mode, 32-bit write : 58 678 ins/sec 118% / 69 442 1183% / 694 387
|
---|
| 2484 | 16-bit unpaged protected mode, 32-bit read-to-ring-3 : 57 841 ins/sec 96% / 55 730 275% / 159 163
|
---|
| 2485 | 16-bit unpaged protected mode, 32-bit write-to-ring-3 : 57 855 ins/sec 101% / 58 834 304% / 176 169
|
---|
| 2486 | 32-bit unpaged protected mode, 32-bit read : 58 063 ins/sec 120% / 69 690 1233% / 716 444
|
---|
| 2487 | 32-bit unpaged protected mode, 32-bit write : 57 936 ins/sec 120% / 69 633 1199% / 694 753
|
---|
| 2488 | 32-bit unpaged protected mode, 32-bit read-to-ring-3 : 58 451 ins/sec 96% / 56 183 273% / 159 972
|
---|
| 2489 | 32-bit unpaged protected mode, 32-bit write-to-ring-3 : 58 962 ins/sec 99% / 58 955 298% / 175 936
|
---|
| 2490 | real mode, 32-bit read : 58 571 ins/sec 118% / 69 478 1160% / 679 917
|
---|
| 2491 | real mode, 32-bit write : 58 418 ins/sec 118% / 69 320 1185% / 692 513
|
---|
| 2492 | real mode, 32-bit read-to-ring-3 : 58 072 ins/sec 96% / 55 751 274% / 159 145
|
---|
| 2493 | real mode, 32-bit write-to-ring-3 : 57 870 ins/sec 101% / 58 755 307% / 178 042
|
---|
| 2494 | NOP MMIO Access : PASSED
|
---|
| 2495 | SUCCESS
|
---|
| 2496 | * @endverbatim
|
---|
| 2497 | *
|
---|
| 2498 | * What we see here is:
|
---|
| 2499 | *
|
---|
| 2500 | * - The WinHv API approach is 10 to 12 times slower for exits we can
|
---|
| 2501 | * handle directly in ring-0 in the VBox AMD-V code.
|
---|
| 2502 | *
|
---|
| 2503 | * - The WinHv API approach is 2 to 3 times slower for exits we have to
|
---|
| 2504 | * go to ring-3 to handle with the VBox AMD-V code.
|
---|
| 2505 | *
|
---|
| 2506 | * - By using hypercalls and VID.SYS from ring-0 we gain between
|
---|
| 2507 | * 13% and 20% over the WinHv API on exits handled in ring-0.
|
---|
| 2508 | *
|
---|
| 2509 | * - For exits requiring ring-3 handling are between 6% slower and 3% faster
|
---|
| 2510 | * than the WinHv API.
|
---|
| 2511 | *
|
---|
| 2512 | *
|
---|
| 2513 | * As a side note, it looks like Hyper-V doesn't let the guest read CR4 but
|
---|
| 2514 | * triggers exits all the time. This isn't all that important these days since
|
---|
| 2515 | * OSes like Linux cache the CR4 value specifically to avoid these kinds of exits.
|
---|
| 2516 | *
|
---|
[72671] | 2517 | *
|
---|
[74588] | 2518 | * @subsubsection subsect_nem_win_benchmarks_bs2t1u1 17134/2018-10-02: Bootsector2-test1
|
---|
[72671] | 2519 | *
|
---|
[74588] | 2520 | * Update on 17134. While expectantly testing a couple of newer builds (17758,
|
---|
[74589] | 2521 | * 17763) hoping for some increases in performance, the numbers turned out
|
---|
[74590] | 2522 | * altogether worse than the June test run. So, we went back to the 1803
|
---|
[74589] | 2523 | * (17134) installation, made sure it was fully up to date (as per 2018-10-02)
|
---|
| 2524 | * and re-tested.
|
---|
[74588] | 2525 | *
|
---|
[74589] | 2526 | * The numbers had somehow turned significantly worse over the last 3-4 months,
|
---|
| 2527 | * dropping around 70% for the WinHv API test, more for Hypercalls + VID.
|
---|
[74588] | 2528 | *
|
---|
[74589] | 2529 | * @verbatim
|
---|
| 2530 | TESTING... WinHv API Hypercalls + VID VirtualBox AMD-V *
|
---|
| 2531 | 32-bit paged protected mode, CPUID : 33 270 ins/sec 33 154
|
---|
| 2532 | real mode, CPUID : 33 534 ins/sec 32 711
|
---|
| 2533 | [snip]
|
---|
| 2534 | 32-bit paged protected mode, RDTSC : 102 216 011 ins/sec 98 225 419
|
---|
| 2535 | real mode, RDTSC : 102 492 243 ins/sec 98 225 419
|
---|
| 2536 | [snip]
|
---|
| 2537 | 32-bit paged protected mode, Read CR4 : 2 096 165 ins/sec 2 123 815
|
---|
| 2538 | real mode, Read CR4 : 2 081 047 ins/sec 2 075 151
|
---|
| 2539 | [snip]
|
---|
| 2540 | 32-bit paged protected mode, 32-bit IN : 32 739 ins/sec 33 655
|
---|
| 2541 | 32-bit paged protected mode, 32-bit OUT : 32 702 ins/sec 33 777
|
---|
| 2542 | 32-bit paged protected mode, 32-bit IN-to-ring-3 : 32 579 ins/sec 29 985
|
---|
| 2543 | 32-bit paged protected mode, 32-bit OUT-to-ring-3 : 32 750 ins/sec 29 757
|
---|
| 2544 | [snip]
|
---|
| 2545 | 32-bit paged protected mode, 32-bit read : 20 042 ins/sec 21 489
|
---|
| 2546 | 32-bit paged protected mode, 32-bit write : 20 036 ins/sec 21 493
|
---|
| 2547 | 32-bit paged protected mode, 32-bit read-to-ring-3 : 19 985 ins/sec 19 143
|
---|
| 2548 | 32-bit paged protected mode, 32-bit write-to-ring-3 : 19 972 ins/sec 19 595
|
---|
| 2549 |
|
---|
| 2550 | * @endverbatim
|
---|
[74588] | 2551 | *
|
---|
[74589] | 2552 | * Suspects are security updates and/or microcode updates installed since then.
|
---|
| 2553 | * Given that the RDTSC and CR4 numbers are reasonably unchanges, it seems that
|
---|
| 2554 | * the Hyper-V core loop (in hvax64.exe) aren't affected. Our ring-0 runloop
|
---|
| 2555 | * is equally affected as the ring-3 based runloop, so it cannot be ring
|
---|
| 2556 | * switching as such (unless the ring-0 loop is borked and we didn't notice yet).
|
---|
[74588] | 2557 | *
|
---|
[74589] | 2558 | * The issue is probably in the thread / process switching area, could be
|
---|
| 2559 | * something special for hyper-V interrupt delivery or worker thread switching.
|
---|
| 2560 | *
|
---|
| 2561 | * Really wish this thread ping-pong going on in VID.SYS could be eliminated!
|
---|
| 2562 | *
|
---|
| 2563 | *
|
---|
[74588] | 2564 | * @subsubsection subsect_nem_win_benchmarks_bs2t1u2 17763: Bootsector2-test1
|
---|
| 2565 | *
|
---|
| 2566 | * Some preliminary numbers for build 17763 on the 3.4 GHz AMD 1950X, the second
|
---|
| 2567 | * column will improve we get time to have a look the register page.
|
---|
| 2568 | *
|
---|
| 2569 | * There is a 50% performance loss here compared to the June numbers with
|
---|
| 2570 | * build 17134. The RDTSC numbers hits that it isn't in the Hyper-V core
|
---|
| 2571 | * (hvax64.exe), but something on the NT side.
|
---|
| 2572 | *
|
---|
[74600] | 2573 | * Clearing bit 20 in nt!KiSpeculationFeatures speeds things up (i.e. changing
|
---|
[74606] | 2574 | * the dword from 0x00300065 to 0x00200065 in windbg). This is checked by
|
---|
| 2575 | * nt!KePrepareToDispatchVirtualProcessor, making it a no-op if the flag is
|
---|
| 2576 | * clear. winhvr!WinHvpVpDispatchLoop call that function before making
|
---|
| 2577 | * hypercall 0xc2, which presumably does the heavy VCpu lifting in hvcax64.exe.
|
---|
[74600] | 2578 | *
|
---|
[74588] | 2579 | * @verbatim
|
---|
[74600] | 2580 | TESTING... WinHv API Hypercalls + VID clr(bit-20) + WinHv API
|
---|
| 2581 | 32-bit paged protected mode, CPUID : 54 145 ins/sec 51 436 130 076
|
---|
| 2582 | real mode, CPUID : 54 178 ins/sec 51 713 130 449
|
---|
[74588] | 2583 | [snip]
|
---|
[74600] | 2584 | 32-bit paged protected mode, RDTSC : 98 927 639 ins/sec 100 254 552 100 549 882
|
---|
| 2585 | real mode, RDTSC : 99 601 206 ins/sec 100 886 699 100 470 957
|
---|
[74588] | 2586 | [snip]
|
---|
[74600] | 2587 | 32-bit paged protected mode, 32-bit IN : 54 621 ins/sec 51 524 128 294
|
---|
| 2588 | 32-bit paged protected mode, 32-bit OUT : 54 870 ins/sec 51 671 129 397
|
---|
| 2589 | 32-bit paged protected mode, 32-bit IN-to-ring-3 : 54 624 ins/sec 43 964 127 874
|
---|
| 2590 | 32-bit paged protected mode, 32-bit OUT-to-ring-3 : 54 803 ins/sec 44 087 129 443
|
---|
[74588] | 2591 | [snip]
|
---|
[74600] | 2592 | 32-bit paged protected mode, 32-bit read : 28 230 ins/sec 34 042 48 113
|
---|
| 2593 | 32-bit paged protected mode, 32-bit write : 27 962 ins/sec 34 050 48 069
|
---|
| 2594 | 32-bit paged protected mode, 32-bit read-to-ring-3 : 27 841 ins/sec 28 397 48 146
|
---|
| 2595 | 32-bit paged protected mode, 32-bit write-to-ring-3 : 27 896 ins/sec 29 455 47 970
|
---|
[74588] | 2596 | * @endverbatim
|
---|
| 2597 | *
|
---|
| 2598 | *
|
---|
| 2599 | * @subsubsection subsect_nem_win_benchmarks_w2k 17134/2018-06-22: Windows 2000 Boot & Shutdown
|
---|
| 2600 | *
|
---|
[72671] | 2601 | * Timing the startup and automatic shutdown of a Windows 2000 SP4 guest serves
|
---|
| 2602 | * as a real world benchmark and example of why exit performance is import. When
|
---|
| 2603 | * Windows 2000 boots up is doing a lot of VGA redrawing of the boot animation,
|
---|
| 2604 | * which is very costly. Not having installed guest additions leaves it in a VGA
|
---|
| 2605 | * mode after the bootup sequence is done, keep up the screen access expenses,
|
---|
| 2606 | * though the graphics driver more economical than the bootvid code.
|
---|
| 2607 | *
|
---|
| 2608 | * The VM was configured to automatically logon. A startup script was installed
|
---|
| 2609 | * to perform the automatic shuting down and powering off the VM (thru
|
---|
[72673] | 2610 | * vts_shutdown.exe -f -p). An offline snapshot of the VM was taken an restored
|
---|
| 2611 | * before each test run. The test time run time is calculated from the monotonic
|
---|
| 2612 | * VBox.log timestamps, starting with the state change to 'RUNNING' and stopping
|
---|
| 2613 | * at 'POWERING_OFF'.
|
---|
[72671] | 2614 | *
|
---|
| 2615 | * The host OS and VirtualBox build is the same as for the bootsector2-test1
|
---|
| 2616 | * scenario.
|
---|
| 2617 | *
|
---|
| 2618 | * Results:
|
---|
| 2619 | *
|
---|
| 2620 | * - WinHv API for all but physical page mappings:
|
---|
[72672] | 2621 | * 32 min 12.19 seconds
|
---|
[72671] | 2622 | *
|
---|
| 2623 | * - The default NEM/win configuration where we put the main execution loop
|
---|
| 2624 | * in ring-0, using hypercalls when we can and VID for managing execution:
|
---|
[72672] | 2625 | * 3 min 23.18 seconds
|
---|
[72671] | 2626 | *
|
---|
| 2627 | * - Regular VirtualBox using AMD-V directly, hyper-V is disabled, main
|
---|
| 2628 | * execution loop in ring-0:
|
---|
[72672] | 2629 | * 58.09 seconds
|
---|
[72671] | 2630 | *
|
---|
| 2631 | * - WinHv API with exit history based optimizations:
|
---|
[72672] | 2632 | * 58.66 seconds
|
---|
[72671] | 2633 | *
|
---|
| 2634 | * - Hypercall + VID.SYS with exit history base optimizations:
|
---|
[72672] | 2635 | * 58.94 seconds
|
---|
[72671] | 2636 | *
|
---|
| 2637 | * With a well above average machine needing over half an hour for booting a
|
---|
| 2638 | * nearly 20 year old guest kind of says it all. The 13%-20% exit performance
|
---|
| 2639 | * increase we get by using hypercalls and VID.SYS directly pays off a lot here.
|
---|
| 2640 | * The 3m23s is almost acceptable in comparison to the half an hour.
|
---|
| 2641 | *
|
---|
[72672] | 2642 | * The similarity between the last three results strongly hits at windows 2000
|
---|
| 2643 | * doing a lot of waiting during boot and shutdown and isn't the best testcase
|
---|
| 2644 | * once a basic performance level is reached.
|
---|
| 2645 | *
|
---|
[72673] | 2646 | *
|
---|
| 2647 | * @subsubsection subsection_iem_win_benchmarks_deb9_nat Debian 9 NAT performance
|
---|
| 2648 | *
|
---|
| 2649 | * This benchmark is about network performance over NAT from a 64-bit Debian 9
|
---|
| 2650 | * VM with a single CPU. For network performance measurements, we use our own
|
---|
| 2651 | * NetPerf tool (ValidationKit/utils/network/NetPerf.cpp) to measure latency
|
---|
| 2652 | * and throughput.
|
---|
| 2653 | *
|
---|
| 2654 | * The setups, builds and configurations are as in the previous benchmarks
|
---|
[74589] | 2655 | * (release r123172 on 1950X running 64-bit W10/17134 (2016-06-xx). Please note
|
---|
| 2656 | * that the exit optimizations hasn't yet been in tuned with NetPerf in mind.
|
---|
[72673] | 2657 | *
|
---|
| 2658 | * The NAT network setup was selected here since it's the default one and the
|
---|
| 2659 | * slowest one. There is quite a bit of IPC with worker threads and packet
|
---|
| 2660 | * processing involved.
|
---|
| 2661 | *
|
---|
| 2662 | * Latency test is first up. This is a classic back and forth between the two
|
---|
| 2663 | * NetPerf instances, where the key measurement is the roundrip latency. The
|
---|
| 2664 | * values here are the lowest result over 3-6 runs.
|
---|
| 2665 | *
|
---|
| 2666 | * Against host system:
|
---|
| 2667 | * - 152 258 ns/roundtrip - 100% - regular VirtualBox SVM
|
---|
| 2668 | * - 271 059 ns/roundtrip - 178% - Hypercalls + VID.SYS in ring-0 with exit optimizations.
|
---|
| 2669 | * - 280 149 ns/roundtrip - 184% - Hypercalls + VID.SYS in ring-0
|
---|
| 2670 | * - 317 735 ns/roundtrip - 209% - Win HV API with exit optimizations.
|
---|
| 2671 | * - 342 440 ns/roundtrip - 225% - Win HV API
|
---|
| 2672 | *
|
---|
| 2673 | * Against a remote Windows 10 system over a 10Gbps link:
|
---|
| 2674 | * - 243 969 ns/roundtrip - 100% - regular VirtualBox SVM
|
---|
| 2675 | * - 384 427 ns/roundtrip - 158% - Win HV API with exit optimizations.
|
---|
| 2676 | * - 402 411 ns/roundtrip - 165% - Hypercalls + VID.SYS in ring-0
|
---|
| 2677 | * - 406 313 ns/roundtrip - 167% - Win HV API
|
---|
| 2678 | * - 413 160 ns/roundtrip - 169% - Hypercalls + VID.SYS in ring-0 with exit optimizations.
|
---|
| 2679 | *
|
---|
| 2680 | * What we see here is:
|
---|
| 2681 | *
|
---|
| 2682 | * - Consistent and signficant latency increase using Hyper-V compared
|
---|
| 2683 | * to directly harnessing AMD-V ourselves.
|
---|
| 2684 | *
|
---|
| 2685 | * - When talking to the host, it's clear that the hypercalls + VID.SYS
|
---|
| 2686 | * in ring-0 method pays off.
|
---|
| 2687 | *
|
---|
| 2688 | * - When talking to a different host, the numbers are closer and it
|
---|
| 2689 | * is not longer clear which Hyper-V execution method is better.
|
---|
| 2690 | *
|
---|
| 2691 | *
|
---|
| 2692 | * Throughput benchmarks are performed by one side pushing data full throttle
|
---|
| 2693 | * for 10 seconds (minus a 1 second at each end of the test), then reversing
|
---|
| 2694 | * the roles and measuring it in the other direction. The tests ran 3-5 times
|
---|
| 2695 | * and below are the highest and lowest results in each direction.
|
---|
| 2696 | *
|
---|
| 2697 | * Receiving from host system:
|
---|
| 2698 | * - Regular VirtualBox SVM:
|
---|
| 2699 | * Max: 96 907 549 bytes/s - 100%
|
---|
| 2700 | * Min: 86 912 095 bytes/s - 100%
|
---|
| 2701 | * - Hypercalls + VID.SYS in ring-0:
|
---|
| 2702 | * Max: 84 036 544 bytes/s - 87%
|
---|
| 2703 | * Min: 64 978 112 bytes/s - 75%
|
---|
| 2704 | * - Hypercalls + VID.SYS in ring-0 with exit optimizations:
|
---|
| 2705 | * Max: 77 760 699 bytes/s - 80%
|
---|
| 2706 | * Min: 72 677 171 bytes/s - 84%
|
---|
| 2707 | * - Win HV API with exit optimizations:
|
---|
| 2708 | * Max: 64 465 905 bytes/s - 67%
|
---|
| 2709 | * Min: 62 286 369 bytes/s - 72%
|
---|
| 2710 | * - Win HV API:
|
---|
| 2711 | * Max: 62 466 631 bytes/s - 64%
|
---|
| 2712 | * Min: 61 362 782 bytes/s - 70%
|
---|
| 2713 | *
|
---|
| 2714 | * Sending to the host system:
|
---|
| 2715 | * - Regular VirtualBox SVM:
|
---|
| 2716 | * Max: 87 728 652 bytes/s - 100%
|
---|
| 2717 | * Min: 86 923 198 bytes/s - 100%
|
---|
| 2718 | * - Hypercalls + VID.SYS in ring-0:
|
---|
| 2719 | * Max: 84 280 749 bytes/s - 96%
|
---|
| 2720 | * Min: 78 369 842 bytes/s - 90%
|
---|
| 2721 | * - Hypercalls + VID.SYS in ring-0 with exit optimizations:
|
---|
| 2722 | * Max: 84 119 932 bytes/s - 96%
|
---|
| 2723 | * Min: 77 396 811 bytes/s - 89%
|
---|
| 2724 | * - Win HV API:
|
---|
| 2725 | * Max: 81 714 377 bytes/s - 93%
|
---|
| 2726 | * Min: 78 697 419 bytes/s - 91%
|
---|
| 2727 | * - Win HV API with exit optimizations:
|
---|
| 2728 | * Max: 80 502 488 bytes/s - 91%
|
---|
| 2729 | * Min: 71 164 978 bytes/s - 82%
|
---|
| 2730 | *
|
---|
| 2731 | * Receiving from a remote Windows 10 system over a 10Gbps link:
|
---|
| 2732 | * - Hypercalls + VID.SYS in ring-0:
|
---|
| 2733 | * Max: 115 346 922 bytes/s - 136%
|
---|
| 2734 | * Min: 112 912 035 bytes/s - 137%
|
---|
| 2735 | * - Regular VirtualBox SVM:
|
---|
| 2736 | * Max: 84 517 504 bytes/s - 100%
|
---|
| 2737 | * Min: 82 597 049 bytes/s - 100%
|
---|
| 2738 | * - Hypercalls + VID.SYS in ring-0 with exit optimizations:
|
---|
| 2739 | * Max: 77 736 251 bytes/s - 92%
|
---|
| 2740 | * Min: 73 813 784 bytes/s - 89%
|
---|
| 2741 | * - Win HV API with exit optimizations:
|
---|
| 2742 | * Max: 63 035 587 bytes/s - 75%
|
---|
| 2743 | * Min: 57 538 380 bytes/s - 70%
|
---|
| 2744 | * - Win HV API:
|
---|
| 2745 | * Max: 62 279 185 bytes/s - 74%
|
---|
| 2746 | * Min: 56 813 866 bytes/s - 69%
|
---|
| 2747 | *
|
---|
| 2748 | * Sending to a remote Windows 10 system over a 10Gbps link:
|
---|
| 2749 | * - Win HV API with exit optimizations:
|
---|
| 2750 | * Max: 116 502 357 bytes/s - 103%
|
---|
| 2751 | * Min: 49 046 550 bytes/s - 59%
|
---|
| 2752 | * - Regular VirtualBox SVM:
|
---|
| 2753 | * Max: 113 030 991 bytes/s - 100%
|
---|
| 2754 | * Min: 83 059 511 bytes/s - 100%
|
---|
| 2755 | * - Hypercalls + VID.SYS in ring-0:
|
---|
| 2756 | * Max: 106 435 031 bytes/s - 94%
|
---|
| 2757 | * Min: 47 253 510 bytes/s - 57%
|
---|
| 2758 | * - Hypercalls + VID.SYS in ring-0 with exit optimizations:
|
---|
| 2759 | * Max: 94 842 287 bytes/s - 84%
|
---|
| 2760 | * Min: 68 362 172 bytes/s - 82%
|
---|
| 2761 | * - Win HV API:
|
---|
| 2762 | * Max: 65 165 225 bytes/s - 58%
|
---|
| 2763 | * Min: 47 246 573 bytes/s - 57%
|
---|
| 2764 | *
|
---|
| 2765 | * What we see here is:
|
---|
| 2766 | *
|
---|
| 2767 | * - Again consistent numbers when talking to the host. Showing that the
|
---|
| 2768 | * ring-0 approach is preferable to the ring-3 one.
|
---|
| 2769 | *
|
---|
| 2770 | * - Again when talking to a remote host, things get more difficult to
|
---|
| 2771 | * make sense of. The spread is larger and direct AMD-V gets beaten by
|
---|
| 2772 | * a different the Hyper-V approaches in each direction.
|
---|
| 2773 | *
|
---|
| 2774 | * - However, if we treat the first entry (remote host) as weird spikes, the
|
---|
| 2775 | * other entries are consistently worse compared to direct AMD-V. For the
|
---|
| 2776 | * send case we get really bad results for WinHV.
|
---|
| 2777 | *
|
---|
[71283] | 2778 | */
|
---|
| 2779 |
|
---|