├── .gitignore ├── LICENSE ├── README.md ├── svm.sln ├── svm ├── common-includes.hpp ├── main.cpp ├── svm.vcxproj ├── svm.vcxproj.filters ├── svm.vcxproj.user └── svm │ ├── def │ ├── cpu.hpp │ ├── descriptors-info.hpp │ ├── virtual-memory.hpp │ ├── vmcb.hpp │ ├── vmexit.hpp │ └── vprocessor-data.hpp │ ├── handlers │ ├── cpuid.cpp │ ├── handlers.hpp │ ├── msr.cpp │ ├── rdtsc.cpp │ └── vmexit.cpp │ ├── svm.cpp │ ├── svm.hpp │ ├── util │ ├── util.cpp │ └── util.hpp │ └── vmenter.asm └── usermode ├── main.cpp ├── usermode.vcxproj ├── usermode.vcxproj.filters └── usermode.vcxproj.user /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Ww][Ii][Nn]32/ 27 | [Aa][Rr][Mm]/ 28 | [Aa][Rr][Mm]64/ 29 | bld/ 30 | [Bb]in/ 31 | [Oo]bj/ 32 | [Ll]og/ 33 | [Ll]ogs/ 34 | 35 | # Visual Studio 2015/2017 cache/options directory 36 | .vs/ 37 | # Uncomment if you have tasks that create the project's static files in wwwroot 38 | #wwwroot/ 39 | 40 | # Visual Studio 2017 auto generated files 41 | Generated\ Files/ 42 | 43 | # MSTest test Results 44 | [Tt]est[Rr]esult*/ 45 | [Bb]uild[Ll]og.* 46 | 47 | # NUnit 48 | *.VisualState.xml 49 | TestResult.xml 50 | nunit-*.xml 51 | 52 | # Build Results of an ATL Project 53 | [Dd]ebugPS/ 54 | [Rr]eleasePS/ 55 | dlldata.c 56 | 57 | # Benchmark Results 58 | BenchmarkDotNet.Artifacts/ 59 | 60 | # .NET Core 61 | project.lock.json 62 | project.fragment.lock.json 63 | artifacts/ 64 | 65 | # ASP.NET Scaffolding 66 | ScaffoldingReadMe.txt 67 | 68 | # StyleCop 69 | StyleCopReport.xml 70 | 71 | # Files built by Visual Studio 72 | *_i.c 73 | *_p.c 74 | *_h.h 75 | *.ilk 76 | *.meta 77 | *.obj 78 | *.iobj 79 | *.pch 80 | *.pdb 81 | *.ipdb 82 | *.pgc 83 | *.pgd 84 | *.rsp 85 | *.sbr 86 | *.tlb 87 | *.tli 88 | *.tlh 89 | *.tmp 90 | *.tmp_proj 91 | *_wpftmp.csproj 92 | *.log 93 | *.tlog 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*.json 147 | coverage*.xml 148 | coverage*.info 149 | 150 | # Visual Studio code coverage results 151 | *.coverage 152 | *.coveragexml 153 | 154 | # NCrunch 155 | _NCrunch_* 156 | .*crunch*.local.xml 157 | nCrunchTemp_* 158 | 159 | # MightyMoose 160 | *.mm.* 161 | AutoTest.Net/ 162 | 163 | # Web workbench (sass) 164 | .sass-cache/ 165 | 166 | # Installshield output folder 167 | [Ee]xpress/ 168 | 169 | # DocProject is a documentation generator add-in 170 | DocProject/buildhelp/ 171 | DocProject/Help/*.HxT 172 | DocProject/Help/*.HxC 173 | DocProject/Help/*.hhc 174 | DocProject/Help/*.hhk 175 | DocProject/Help/*.hhp 176 | DocProject/Help/Html2 177 | DocProject/Help/html 178 | 179 | # Click-Once directory 180 | publish/ 181 | 182 | # Publish Web Output 183 | *.[Pp]ublish.xml 184 | *.azurePubxml 185 | # Note: Comment the next line if you want to checkin your web deploy settings, 186 | # but database connection strings (with potential passwords) will be unencrypted 187 | *.pubxml 188 | *.publishproj 189 | 190 | # Microsoft Azure Web App publish settings. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | ## amd-hypervisor 2 | 3 | ### credits: 4 | - [not-matthias](https://github.com/not-matthias) 5 | - [MellowNight](https://github.com/MellowNight) 6 | 7 | ### references: 8 | - [amd manual chapter 15](https://www.amd.com/system/files/TechDocs/24593.pdf#page=564&zoom=100,84,240) 9 | - [amd's nested paging whitepaper](http://developer.amd.com/wordpress/media/2012/10/NPT-WP-1%201-final-TM.pdf) 10 | - [tandasat's hypervisor](https://github.com/tandasat/SimpleSvm) 11 | - [not-matthias's hypervisor](https://github.com/not-matthias/amd_hypervisor) 12 | - [medievalghoul's hypervisor](https://github.com/medievalghoul/krakensvm-mg) 13 | - [daax's blog](https://revers.engineering/7-days-to-virtualization-a-series-on-hypervisor-development/) 14 | 15 | ### tools: 16 | - [osr loader]() 17 | - [not-matthias's rdtsc benchmarking tool](https://github.com/not-matthias/rdtsc_bench) 18 | -------------------------------------------------------------------------------- /svm.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 16 4 | VisualStudioVersion = 16.0.31729.503 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "svm", "svm\svm.vcxproj", "{C5EF5BD4-724D-4DCF-809E-04D44AE08334}" 7 | EndProject 8 | Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "usermode", "usermode\usermode.vcxproj", "{0198AA0B-C30A-4A07-AA52-C955A228BC39}" 9 | EndProject 10 | Global 11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 12 | Debug|ARM = Debug|ARM 13 | Debug|ARM64 = Debug|ARM64 14 | Debug|x64 = Debug|x64 15 | Debug|x86 = Debug|x86 16 | Release|ARM = Release|ARM 17 | Release|ARM64 = Release|ARM64 18 | Release|x64 = Release|x64 19 | Release|x86 = Release|x86 20 | EndGlobalSection 21 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 22 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM.ActiveCfg = Debug|ARM 23 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM.Build.0 = Debug|ARM 24 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM.Deploy.0 = Debug|ARM 25 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM64.ActiveCfg = Debug|ARM64 26 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM64.Build.0 = Debug|ARM64 27 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|ARM64.Deploy.0 = Debug|ARM64 28 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x64.ActiveCfg = Debug|x64 29 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x64.Build.0 = Debug|x64 30 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x64.Deploy.0 = Debug|x64 31 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x86.ActiveCfg = Debug|Win32 32 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x86.Build.0 = Debug|Win32 33 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Debug|x86.Deploy.0 = Debug|Win32 34 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM.ActiveCfg = Release|ARM 35 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM.Build.0 = Release|ARM 36 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM.Deploy.0 = Release|ARM 37 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM64.ActiveCfg = Release|ARM64 38 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM64.Build.0 = Release|ARM64 39 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|ARM64.Deploy.0 = Release|ARM64 40 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x64.ActiveCfg = Release|x64 41 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x64.Build.0 = Release|x64 42 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x64.Deploy.0 = Release|x64 43 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x86.ActiveCfg = Release|Win32 44 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x86.Build.0 = Release|Win32 45 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334}.Release|x86.Deploy.0 = Release|Win32 46 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|ARM.ActiveCfg = Debug|Win32 47 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|ARM64.ActiveCfg = Debug|Win32 48 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|x64.ActiveCfg = Debug|x64 49 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|x64.Build.0 = Debug|x64 50 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|x86.ActiveCfg = Debug|Win32 51 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Debug|x86.Build.0 = Debug|Win32 52 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|ARM.ActiveCfg = Release|Win32 53 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|ARM64.ActiveCfg = Release|Win32 54 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|x64.ActiveCfg = Release|x64 55 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|x64.Build.0 = Release|x64 56 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|x86.ActiveCfg = Release|Win32 57 | {0198AA0B-C30A-4A07-AA52-C955A228BC39}.Release|x86.Build.0 = Release|Win32 58 | EndGlobalSection 59 | GlobalSection(SolutionProperties) = preSolution 60 | HideSolutionNode = FALSE 61 | EndGlobalSection 62 | GlobalSection(ExtensibilityGlobals) = postSolution 63 | SolutionGuid = {148D4B22-0242-4ECB-B175-74B313527186} 64 | EndGlobalSection 65 | EndGlobal 66 | -------------------------------------------------------------------------------- /svm/common-includes.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include 3 | #include 4 | #include 5 | #include 6 | #include 7 | #include 8 | #pragma warning (disable : 4201) 9 | #pragma warning (disable : 4083) 10 | #pragma warning (disable : 4005) 11 | #pragma warning (disable : 4100) 12 | #pragma warning (disable : 5040) 13 | #pragma warning (disable : 4083) 14 | #include 15 | #include 16 | 17 | #define debug_log(text, ...) (DbgPrintEx(0, 0, /*xs*/(text), ##__VA_ARGS__)) 18 | 19 | #define debug_break() __debugbreak(); -------------------------------------------------------------------------------- /svm/main.cpp: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sariaki/amd-hypervisor/99224ea59e8e6a616b03faabcb8cf2ac5228abd5/svm/main.cpp -------------------------------------------------------------------------------- /svm/svm.vcxproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | Debug 14 | x64 15 | 16 | 17 | Release 18 | x64 19 | 20 | 21 | Debug 22 | ARM 23 | 24 | 25 | Release 26 | ARM 27 | 28 | 29 | Debug 30 | ARM64 31 | 32 | 33 | Release 34 | ARM64 35 | 36 | 37 | 38 | {C5EF5BD4-724D-4DCF-809E-04D44AE08334} 39 | {1bc93793-694f-48fe-9372-81e2b05556fd} 40 | v4.5 41 | 12.0 42 | Debug 43 | Win32 44 | svm 45 | $(LatestTargetPlatformVersion) 46 | x64-windows-static 47 | 48 | 49 | 50 | Windows10 51 | true 52 | WindowsKernelModeDriver10.0 53 | Driver 54 | KMDF 55 | Universal 56 | 57 | 58 | Windows10 59 | false 60 | WindowsKernelModeDriver10.0 61 | Driver 62 | KMDF 63 | Universal 64 | 65 | 66 | Windows10 67 | true 68 | WindowsKernelModeDriver10.0 69 | Driver 70 | KMDF 71 | Universal 72 | false 73 | 74 | 75 | Windows10 76 | false 77 | WindowsKernelModeDriver10.0 78 | Driver 79 | KMDF 80 | Universal 81 | false 82 | 83 | 84 | Windows10 85 | true 86 | WindowsKernelModeDriver10.0 87 | Driver 88 | KMDF 89 | Universal 90 | 91 | 92 | Windows10 93 | false 94 | WindowsKernelModeDriver10.0 95 | Driver 96 | KMDF 97 | Universal 98 | 99 | 100 | Windows10 101 | true 102 | WindowsKernelModeDriver10.0 103 | Driver 104 | KMDF 105 | Universal 106 | 107 | 108 | Windows10 109 | false 110 | WindowsKernelModeDriver10.0 111 | Driver 112 | KMDF 113 | Universal 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | DbgengKernelDebugger 125 | 126 | 127 | DbgengKernelDebugger 128 | 129 | 130 | DbgengKernelDebugger 131 | false 132 | $(IncludePath) 133 | $(LibraryPath) 134 | 135 | 136 | DbgengKernelDebugger 137 | false 138 | $(IncludePath) 139 | $(LibraryPath) 140 | 141 | 142 | DbgengKernelDebugger 143 | 144 | 145 | DbgengKernelDebugger 146 | 147 | 148 | DbgengKernelDebugger 149 | 150 | 151 | DbgengKernelDebugger 152 | 153 | 154 | 155 | stdcpp20 156 | 4083;4005;%(DisableSpecificWarnings) 157 | $(IntDir)%(RelativeDir) 158 | 159 | 160 | driver_entry 161 | false 162 | $(DDK_LIB_PATH)ntstrsafe.lib;%(AdditionalDependencies) 163 | 164 | 165 | 166 | 167 | stdcpp20 168 | 4083;4005;%(DisableSpecificWarnings) 169 | $(IntDir)%(RelativeDir) 170 | 171 | 172 | driver_entry 173 | false 174 | $(DDK_LIB_PATH)ntstrsafe.lib;%(AdditionalDependencies) 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | -------------------------------------------------------------------------------- /svm/svm.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hpp;hxx;hm;inl;inc;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | {8E41214B-6785-4CFE-B992-037D68949A14} 18 | inf;inv;inx;mof;mc; 19 | 20 | 21 | 22 | 23 | Source Files 24 | 25 | 26 | Source Files 27 | 28 | 29 | Source Files 30 | 31 | 32 | Source Files 33 | 34 | 35 | Source Files 36 | 37 | 38 | Source Files 39 | 40 | 41 | Source Files 42 | 43 | 44 | 45 | 46 | Header Files 47 | 48 | 49 | Header Files 50 | 51 | 52 | Header Files 53 | 54 | 55 | Header Files 56 | 57 | 58 | Header Files 59 | 60 | 61 | Header Files 62 | 63 | 64 | Header Files 65 | 66 | 67 | Header Files 68 | 69 | 70 | Header Files 71 | 72 | 73 | Header Files 74 | 75 | 76 | Header Files 77 | 78 | 79 | 80 | 81 | Source Files 82 | 83 | 84 | -------------------------------------------------------------------------------- /svm/svm.vcxproj.user: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | true 5 | 6 | -------------------------------------------------------------------------------- /svm/svm/def/cpu.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include 3 | #include "../../common-includes.hpp" 4 | 5 | #define SVM_MSR_PERMISSIONS_MAP_SIZE (PAGE_SIZE * 2) 6 | #define SVM_MSR_VM_HSAVE_PA 0xC0010117 7 | 8 | // extended feature enable register (EFER) 9 | #define IA32_MSR_EFER 0xC0000080 10 | #define IA32_MSR_EFER_SVME (1UL << 12) // this will set the 13 bit of EFER (if we're counting starting from 1), 11 | #define IA32_MSR_PAT 0x00000277 12 | #define SVM_MSR_VM_CR 0xc0010114 13 | #define SVM_MSR_VM_HSAVE_PA 0xc0010117 14 | 15 | // long system target-address register (LSTAR) 16 | #define IA32_LSTAR 0xC0000082 17 | 18 | #define POOL_NX_OPTIN 1 19 | #define SVM_VM_CR_SVMDIS (1UL << 4) 20 | #define SVM_NP_ENABLE_NP_ENABLE (1UL << 0) 21 | 22 | #define EFER_SVME (1UL << 12) 23 | 24 | #define IA32_APIC_BASE 0x0000001b 25 | 26 | namespace svm 27 | { 28 | enum class cpuid : uint32_t 29 | { 30 | cpu_vendor_string = 0x00000000, 31 | processor_feature_id = 0x00000001, 32 | hypervisor_present_ex = 0x80000000, 33 | processor_feature_id_ex = 0x80000001, 34 | svm_features = 0x8000000a, 35 | svm_features_ex = 0x80000001, 36 | hypervisor_vendor_id = 0x40000000, 37 | hypervisor_interface = 0x40000001, 38 | 39 | cpu_ecx_svm = 0x4, 40 | cpu_edx_np = 0x1, 41 | }; 42 | 43 | enum class msr : uint32_t 44 | { 45 | svm_vm_cr = 0xc0010114, 46 | svm_vm_cr_svmdis = 0x10, 47 | }; 48 | 49 | typedef union _cr3 50 | { 51 | uint64_t flags; 52 | struct 53 | { 54 | uint64_t reserved1 : 3; 55 | uint64_t page_level_write_through : 1; 56 | uint64_t page_level_cache_disable : 1; 57 | uint64_t reserved2 : 7; 58 | uint64_t dirbase : 36; 59 | uint64_t reserved3 : 16; 60 | }; 61 | } cr3; 62 | 63 | extern "C" void _sgdt(PVOID descriptor); 64 | } -------------------------------------------------------------------------------- /svm/svm/def/descriptors-info.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include 3 | #pragma pack(push, 1) 4 | 5 | namespace svm 6 | { 7 | typedef struct 8 | { 9 | uint16_t limit; 10 | uintptr_t base; 11 | } descriptor_table_register_t, * pdescriptor_table_register_t; 12 | static_assert(sizeof(descriptor_table_register_t) == 10, 13 | "descriptor_table_register size mismatch"); 14 | 15 | typedef struct 16 | { 17 | union 18 | { 19 | uint64_t value; 20 | struct 21 | { 22 | uint16_t limit_low; 23 | uint16_t base_low; 24 | uint32_t base_middle : 8; 25 | uint32_t type : 4; 26 | uint32_t system : 1; 27 | uint32_t dpl : 2; 28 | uint32_t present : 1; 29 | uint32_t limit_high : 4; 30 | uint32_t avl : 1; 31 | uint32_t long_mode : 1; 32 | uint32_t default_bit : 1; 33 | uint32_t granularity : 1; 34 | uint32_t base_high : 8; 35 | } fields; 36 | }; 37 | } segment_descriptor_t, * psegment_descriptor_t; 38 | static_assert(sizeof(segment_descriptor_t) == 8, 39 | "segment_descriptor size mismatch"); 40 | 41 | typedef struct 42 | { 43 | union 44 | { 45 | uint16_t value; 46 | struct 47 | { 48 | uint16_t type : 4; 49 | uint16_t system : 1; 50 | uint16_t dpl : 2; 51 | uint16_t present : 1; 52 | uint16_t avl : 1; 53 | uint16_t long_mode : 1; 54 | uint16_t default_bit : 1; 55 | uint16_t granularity : 1; 56 | uint16_t reserved1 : 4; 57 | } fields; 58 | }; 59 | } segment_attributes_t, * psegment_attributes_t; 60 | static_assert(sizeof(segment_attributes_t) == 2, 61 | "segment_attributes size mismatch"); 62 | } 63 | 64 | #pragma pack (pop) -------------------------------------------------------------------------------- /svm/svm/def/virtual-memory.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "../../common-includes.hpp" 3 | 4 | namespace svm 5 | { 6 | // // http://developer.amd.com/wordpress/media/2012/10/NPT-WP-1%201-final-TM.pdf 7 | typedef struct 8 | { 9 | union 10 | { 11 | UINT64 value; 12 | struct 13 | { 14 | UINT64 reserved1 : 8; 15 | UINT64 bootstrap_processor : 1; 16 | UINT64 reserved2 : 1; 17 | UINT64 enable_x2_apic_mode : 1; 18 | UINT64 enable_x_api_global : 1; 19 | UINT64 apic_base : 24; 20 | } fields; 21 | }; 22 | } apic_base_t, * papic_base_t; 23 | static_assert(sizeof(apic_base_t) == 8, "apic base size mismatch"); 24 | 25 | typedef struct 26 | { 27 | union 28 | { 29 | UINT64 value; 30 | struct 31 | { 32 | UINT64 valid : 1; 33 | UINT64 write : 1; 34 | UINT64 user : 1; 35 | UINT64 write_through : 1; 36 | UINT64 cache_disable : 1; 37 | UINT64 accessed : 1; 38 | UINT64 dirty : 1; 39 | UINT64 pat : 1; 40 | UINT64 global : 1; 41 | UINT64 avl : 3; 42 | UINT64 page_frame_nr : 40; 43 | UINT64 reserved1 : 11; 44 | UINT64 no_execute : 1; 45 | } fields; 46 | }; 47 | } pt_entry_4kb_t, * ppt_entry_4kb_t; 48 | static_assert(sizeof(pt_entry_4kb_t) == 8, "page table enty 4kb size mismatch"); 49 | 50 | typedef struct 51 | { 52 | union 53 | { 54 | uint64_t value; 55 | struct 56 | { 57 | uint64_t valid : 1; 58 | uint64_t write : 1; 59 | uint64_t user : 1; 60 | uint64_t write_through : 1; 61 | uint64_t cache_disable : 1; 62 | uint64_t accessed : 1; 63 | uint64_t reserved1 : 3; 64 | uint64_t avl : 3; 65 | uint64_t page_frame_nr : 40; 66 | uint64_t reserved2 : 11; 67 | uint64_t no_execute : 1; 68 | } fields; 69 | }; 70 | } pml4_entry_4kb_t, * ppml4_entry_4kb_t, 71 | pdp_entry_4kb_t, * ppdp_entry_4kb_t; 72 | static_assert(sizeof(pml4_entry_4kb_t) == 8, 73 | "pml4 entry 4kb size mismatch"); 74 | 75 | typedef struct 76 | { 77 | union 78 | { 79 | uint64_t value; 80 | struct 81 | { 82 | uint64_t valid : 1; 83 | uint64_t write : 1; 84 | uint64_t user : 1; 85 | uint64_t write_through : 1; 86 | uint64_t cache_disable : 1; 87 | uint64_t accessed : 1; 88 | uint64_t dirty : 1; 89 | uint64_t large_page : 1; 90 | uint64_t global : 1; 91 | uint64_t avl : 3; 92 | uint64_t pat : 1; 93 | uint64_t reserved1 : 8; 94 | uint64_t page_frame_nr : 31; 95 | uint64_t reserved2 : 11; 96 | uint64_t no_execute : 1; 97 | } fields; 98 | }; 99 | } pd_entry_4kb_t, * ppd_entry_4kb_t; 100 | static_assert(sizeof(pd_entry_4kb_t) == 8, 101 | "pd entry 4kb size mismatch"); 102 | 103 | typedef union 104 | { 105 | PVOID value; 106 | struct 107 | { 108 | uint64_t offset : 12; 109 | uint64_t pt_index : 9; 110 | uint64_t pd_index : 9; 111 | uint64_t pdpt_index : 9; 112 | uint64_t pml4_index : 9; 113 | uint64_t reserved1 : 16; 114 | }; 115 | } virtual_address_t, * pvirtual_address_t; 116 | static_assert(sizeof(virtual_address_t) == 8, 117 | "virtual address size mismatch"); 118 | } -------------------------------------------------------------------------------- /svm/svm/def/vmcb.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "../../common-includes.hpp" 3 | 4 | namespace svm 5 | { 6 | typedef union 7 | { 8 | uint16_t value; 9 | 10 | struct 11 | { 12 | uint16_t type : 4; 13 | uint16_t system : 1; 14 | uint16_t dpl : 2; 15 | uint16_t present : 1; 16 | uint16_t avl : 1; 17 | uint16_t longmode : 1; 18 | uint16_t default_bit : 1; 19 | uint16_t granularity : 1; 20 | uint16_t reserved : 4; 21 | }; 22 | } segment_attribute_64_t, * psegment_attribute_64_t; 23 | static_assert(sizeof(segment_attribute_64_t) == 2, 24 | "segment_attribute_64 size mismatch"); 25 | 26 | struct seg_register 27 | { 28 | uint16_t selector; 29 | segment_attribute_64_t attribute; 30 | uint32_t limit; 31 | uint64_t base; 32 | }; 33 | static_assert(sizeof(seg_register) == 0x10, 34 | "seg_register size mismatch"); 35 | 36 | // Table B-1. VMCB Layout, Control Area 37 | typedef struct 38 | { 39 | uint16_t intercept_cr_read; // +0x000 40 | uint16_t intercept_cr_write; // +0x002 41 | uint16_t intercept_dr_read; // +0x004 42 | uint16_t intercept_dr_write; // +0x006 43 | uint32_t intercept_exeption; // +0x008 44 | uint32_t intercept_misc1; // +0x00c 45 | uint32_t intercept_misc2; // +0x010 46 | uint8_t reserved1[0x03c - 0x014]; // +0x014 47 | uint16_t pause_filter_threshhold; // +0x03c 48 | uint16_t pause_filter_count; // +0x03e 49 | uint64_t iopm_base_pa; // +0x040 50 | uint64_t msrpm_base_pa; // +0x048 51 | uint64_t tsc_offset; // +0x050 52 | uint32_t guest_asid; // +0x058 53 | uint32_t tlb_control; // +0x05c 54 | uint64_t vintr; // +0x060 55 | uint64_t interrupt_shadow; // +0x068 56 | uint64_t exit_code; // +0x070 57 | uint64_t exit_info1; // +0x078 58 | uint64_t exit_info2; // +0x080 59 | uint64_t exit_int_info; // +0x088 60 | uint64_t np_enable; // +0x090 61 | uint64_t avic_apic_bar; // +0x098 62 | uint64_t guest_pa_of_ghcb; // +0x0a0 63 | uint64_t event_inj; // +0x0a8 64 | uint64_t ncr3; // +0x0b0 65 | uint64_t lbr_virtualization_enable; // +0x0b8 66 | uint64_t vmcb_clean; // +0x0c0 67 | uint64_t next_rip; // +0x0c8 68 | uint8_t num_of_bytes_fetched; // +0x0d0 69 | uint8_t guest_instruction_bytes[15]; // +0x0d1 70 | uint64_t avic_apic_backing_page_ptr; // +0x0e0 71 | uint64_t reserved2; // +0x0e8 72 | uint64_t avic_logical_table_ptr; // +0x0f0 73 | uint64_t avic_physical_table_ptr; // +0x0f8 74 | uint64_t reserved3; // +0x100 75 | uint64_t vmcb_save_state_ptr; // +0x108 76 | uint8_t reserved4[0x400 - 0x110]; // +0x110 77 | } vmcb_ctrl_area_t, * pvmcb_ctrl_area_t; 78 | static_assert(sizeof(vmcb_ctrl_area_t) == 0x400, 79 | "vmcb_ctrl_area size mismatch"); 80 | 81 | // Table B-2. VMCB Layout, State Save Area 82 | typedef struct 83 | { 84 | seg_register es; // +0x000 85 | seg_register cs; // +0x010 86 | seg_register ss; // +0x020 87 | seg_register ds; // +0x030 88 | seg_register fs; // +0x040 89 | seg_register gs; // +0x050 90 | seg_register gdtr; // +0x060 91 | seg_register ldtr; // +0x070 92 | seg_register idtr; // +0x080 93 | seg_register tr; // +0x090 94 | uint8_t reserved1[0x0cb - 0x0a0]; // +0x0a0 95 | uint8_t cpl; // +0x0cb 96 | uint32_t reserved2; // +0x0cc 97 | uint64_t efer; // +0x0d0 98 | uint8_t reserved3[0x148 - 0x0d8]; // +0x0d8 99 | uint64_t cr4; // +0x148 100 | uint64_t cr3; // +0x150 101 | uint64_t cr0; // +0x158 102 | uint64_t dr7; // +0x160 103 | uint64_t dr6; // +0x168 104 | uint64_t rflags; // +0x170 105 | uint64_t rip; // +0x178 106 | uint8_t reserved4[0x1d8 - 0x180]; // +0x180 107 | uint64_t rsp; // +0x1d8 108 | uint8_t reserved5[0x1f8 - 0x1e0]; // +0x1e0 109 | uint64_t rax; // +0x1f8 110 | uint64_t star; // +0x200 111 | uint64_t lstar; // +0x208 112 | uint64_t cstar; // +0x210 113 | uint64_t sfmask; // +0x218 114 | uint64_t kernel_gs_base; // +0x220 115 | uint64_t sysenter_cs; // +0x228 116 | uint64_t sysenter_esp; // +0x230 117 | uint64_t sysenter_eip; // +0x238 118 | uint64_t cr2; // +0x240 119 | uint8_t reserved6[0x268 - 0x248]; // +0x248 120 | uint64_t gpat; // +0x268 121 | uint64_t dbg_ctl; // +0x270 122 | uint64_t br_from; // +0x278 123 | uint64_t br_to; // +0x280 124 | uint64_t last_excep_from; // +0x288 125 | uint64_t last_exep_to; // +0x290 126 | } vmcb_state_save_area_t, * pvmcb_state_save_area_t; 127 | static_assert(sizeof(vmcb_state_save_area_t) == 0x298, 128 | "vmcb_state_save_area size mismatch"); 129 | 130 | typedef struct 131 | { 132 | vmcb_ctrl_area_t control_area; 133 | vmcb_state_save_area_t state_save_area; 134 | uint8_t reserved1[0x1000 - sizeof(vmcb_ctrl_area_t) - sizeof(vmcb_state_save_area_t)]; 135 | } vmcb_t, * pvmcb_t; 136 | static_assert(sizeof(vmcb_t) == 0x1000, 137 | "vmcb size mismatch"); 138 | 139 | typedef struct 140 | { 141 | uint64_t r15; 142 | uint64_t r14; 143 | uint64_t r13; 144 | uint64_t r12; 145 | uint64_t r11; 146 | uint64_t r10; 147 | uint64_t r9; 148 | uint64_t r8; 149 | uint64_t rdi; 150 | uint64_t rsi; 151 | uint64_t rbp; 152 | uint64_t rsp; 153 | uint64_t rbx; 154 | uint64_t rdx; 155 | uint64_t rcx; 156 | uint64_t rax; 157 | } guest_registers_t, * pguest_registers_t; 158 | 159 | typedef struct 160 | { 161 | pguest_registers_t vprocessor_registers; 162 | bool should_exit; 163 | } guest_ctx_t, * pguest_ctx_t; 164 | } -------------------------------------------------------------------------------- /svm/svm/def/vmexit.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #pragma warning (disable : 4369) 3 | #pragma warning (disable : 4309) 4 | 5 | #define RPL_MASK 3 6 | #define DPL_SYSTEM 0 7 | 8 | #define CPUID_UNLOAD 0xB16D1C 9 | 10 | // Table B-1. VMCB Layout, Control Area 11 | enum misc1_intercept : uint32_t 12 | { 13 | intercept_intr = (1UL << 0), 14 | intercept_nmi = (1UL << 1), 15 | intercept_smi = (1UL << 2), 16 | intercept_init = (1UL << 3), 17 | intercept_vintr = (1UL << 4), 18 | intercept_cr0_ = (1UL << 5), 19 | 20 | intercept_read_idtr = (1UL << 6), 21 | intercept_read_gdtr = (1UL << 7), 22 | intercept_read_ldtr = (1UL << 8), 23 | intercept_read_tr = (1UL << 9), 24 | 25 | intercept_write_idtr = (1UL << 10), 26 | intercept_write_gdtr = (1UL << 11), 27 | intercept_write_ldtr = (1UL << 12), 28 | intercept_write_tr = (1UL << 13), 29 | 30 | intercept_rdtsc = (1UL << 14), 31 | intercept_rdpmc = (1UL << 15), 32 | intercept_pushf = (1UL << 16), 33 | intercept_popf = (1UL << 17), 34 | intercept_cpuid = (1UL << 18), 35 | intercept_rsm = (1UL << 19), 36 | intercept_iret = (1UL << 20), 37 | intercept_intn = (1UL << 21), 38 | intercept_invd= (1UL << 22), 39 | intercept_pause = (1UL << 23), 40 | intercept_hlt = (1UL << 24), 41 | intercept_invldpg = (1UL << 25), 42 | intercept_invlpga = (1UL << 26), 43 | intercept_ioio_prot = (1UL << 27), 44 | intercept_msr_prot = (1UL << 28), 45 | intercept_task_switches = (1UL << 29), 46 | intercept_ferr_freeze = (1UL << 30), 47 | intercept_shutdown = (1UL << 31), 48 | }; 49 | 50 | enum misc2_intercept : uint32_t 51 | { 52 | intercept_vmrun = (1UL << 0), 53 | intercept_vmcall = (1UL << 1), 54 | intercept_vmload = (1UL << 2), 55 | intercept_vmsave = (1UL << 3), 56 | 57 | intercept_stgi = (1UL << 4), 58 | intercept_clgi = (1UL << 5), 59 | intercept_skinit = (1UL << 6), 60 | intercept_rdtscp = (1UL << 7), 61 | intercept_incebp = (1UL << 8), 62 | intercept_wbinvd = (1UL << 9), 63 | intercept_monitor = (1UL << 10), 64 | intercept_mwait = (1UL << 11), 65 | intercept_mwait_conditional = (1UL << 12), 66 | intercept_xsetbv = (1UL << 13), 67 | intercept_rdpru = (1UL << 14), 68 | intercept_efer = (1UL << 15), 69 | 70 | intercept_cr0 = (1UL << 16), 71 | intercept_cr1 = (1UL << 17), 72 | intercept_cr2 = (1UL << 18), 73 | intercept_cr3 = (1UL << 19), 74 | intercept_cr4 = (1UL << 20), 75 | intercept_cr5 = (1UL << 21), 76 | intercept_cr6 = (1UL << 22), 77 | intercept_cr7 = (1UL << 23), 78 | intercept_cr8 = (1UL << 24), 79 | intercept_cr9 = (1UL << 25), 80 | intercept_cr10 = (1UL << 26), 81 | intercept_cr11 = (1UL << 27), 82 | intercept_cr12 = (1UL << 28), 83 | intercept_cr13 = (1UL << 29), 84 | intercept_cr14 = (1UL << 30), 85 | intercept_cr15 = (1UL << 31), 86 | }; 87 | 88 | enum exception_intercept : int16_t 89 | { 90 | 91 | }; 92 | 93 | typedef struct 94 | { 95 | union 96 | { 97 | uint64_t value; 98 | struct 99 | { 100 | uint64_t vector : 8; 101 | uint64_t type : 3; 102 | uint64_t error_code_valid : 1; 103 | uint64_t reserved1 : 19; 104 | uint64_t valid : 1; 105 | uint64_t error_code : 32; 106 | } fields; 107 | }; 108 | } event_inj_t, * pevent_inj_t; 109 | static_assert(sizeof(event_inj_t) == 8, 110 | "event_inj size mismatch"); 111 | 112 | // Table C-1. SVM Intercept Codes 113 | enum vmexit : int16_t 114 | { 115 | cr0_read = 0x0, 116 | cr1_read = 0x1, 117 | cr2_read = 0x2, 118 | cr3_read = 0x3, 119 | cr4_read = 0x4, 120 | cr5_read = 0x5, 121 | cr6_read = 0x6, 122 | cr7_read = 0x7, 123 | cr8_read = 0x8, 124 | cr9_read = 0x9, 125 | cr10_read = 0xa, 126 | cr11_read = 0xb, 127 | cr12_read = 0xc, 128 | cr13_read = 0xd, 129 | cr14_read = 0xe, 130 | cr15_read = 0xf, 131 | 132 | cr0_write = 0x10, 133 | cr1_write = 0x11, 134 | cr2_write = 0x12, 135 | cr3_write = 0x13, 136 | cr4_write = 0x14, 137 | cr5_write = 0x15, 138 | cr6_write = 0x16, 139 | cr7_write = 0x17, 140 | cr8_write = 0x18, 141 | cr9_write = 0x19, 142 | cr10_write = 0x1a, 143 | cr11_write = 0x1b, 144 | cr12_write = 0x1c, 145 | cr13_write = 0x1d, 146 | cr14_write = 0x1e, 147 | cr15_write = 0x1f, 148 | 149 | dr0_read = 0x20, 150 | dr1_read = 0x21, 151 | dr2_read = 0x22, 152 | dr3_read = 0x23, 153 | dr4_read = 0x24, 154 | dr5_read = 0x25, 155 | dr6_read = 0x26, 156 | dr7_read = 0x27, 157 | dr8_read = 0x28, 158 | dr9_read = 0x29, 159 | dr10_read = 0x2a, 160 | dr11_read = 0x2b, 161 | dr12_read = 0x2c, 162 | dr13_read = 0x2d, 163 | dr14_read = 0x2e, 164 | dr15_read = 0x2f, 165 | 166 | dr0_write = 0x30, 167 | dr1_write = 0x31, 168 | dr2_write = 0x32, 169 | dr3_write = 0x33, 170 | dr4_write = 0x34, 171 | dr5_write = 0x35, 172 | dr6_write = 0x36, 173 | dr7_write = 0x37, 174 | dr8_write = 0x38, 175 | dr9_write = 0x39, 176 | dr10_write = 0x3a, 177 | dr11_write = 0x3b, 178 | dr12_write = 0x3c, 179 | dr13_write = 0x3d, 180 | dr14_write = 0x3e, 181 | dr15_write = 0x3f, 182 | 183 | excp0_write = 0x40, 184 | excp1_write = 0x41, 185 | excp2_write = 0x42, 186 | excp3_write = 0x43, 187 | excp4_write = 0x44, 188 | excp5_write = 0x45, 189 | excp6_write = 0x46, 190 | excp7_write = 0x47, 191 | excp8_write = 0x48, 192 | excp9_write = 0x49, 193 | excp10_write = 0x4a, 194 | excp11_write = 0x4b, 195 | excp12_write = 0x4c, 196 | excp13_write = 0x4d, 197 | excp14_write = 0x4e, 198 | excp15_write = 0x4f, 199 | excp16_write = 0x50, 200 | excp17_write = 0x51, 201 | excp18_write = 0x52, 202 | excp19write = 0x53, 203 | excp20_write = 0x54, 204 | excp21_write = 0x55, 205 | excp22_write = 0x56, 206 | excp23_write = 0x57, 207 | excp24_write = 0x58, 208 | excp25_write = 0x59, 209 | excp26_write = 0x5a, 210 | excp27_write = 0x5b, 211 | excp28_write = 0x5c, 212 | excp29_write = 0x5d, 213 | excp30_write = 0x5e, 214 | excp31_write = 0x5f, 215 | 216 | intr = 0x60, 217 | nmi = 0x61, 218 | smi = 0x62, 219 | init = 0x63, 220 | vintr = 0x64, 221 | cr0_sel_write = 0x65, 222 | idtr_read = 0x66, 223 | gdtr_read = 0x67, 224 | ldtr_read = 0x68, 225 | tr_read = 0x69, 226 | idtr_write = 0x6A, 227 | gftr_write = 0x6B, 228 | ldtr_write = 0x6C, 229 | tr_write = 0x6D, 230 | rdtsc = 0x6E, 231 | rdpmc = 0x6F, 232 | pushf = 0x70, 233 | popf = 0x71, 234 | cpuid = 0x72, 235 | rsm = 0x73, 236 | iret = 0x74, 237 | swint = 0x75, 238 | invd = 0x76, 239 | pause = 0x77, 240 | hlt = 0x78, 241 | invlpg = 0x79, 242 | invlpga = 0x7A, 243 | ioio = 0x7B, 244 | msr = 0x7C, 245 | task_switch = 0x7D, 246 | ferr_freeze = 0x7E, 247 | shutdown = 0x7F, 248 | vmrun = 0x80, 249 | vmcall = 0x81, 250 | vmload = 0x82, 251 | vmsave = 0x83, 252 | sigi = 0x84, 253 | clgi = 0x85, 254 | skinit = 0x86, 255 | rdtscp = 0x87, 256 | icebp = 0x88, 257 | wbinvd = 0x89, 258 | monitor = 0x8A, 259 | mwait = 0x8B, 260 | mwait_conditional = 0x8C, 261 | rdpru = 0x8D, 262 | xsetbv = 0x8E, 263 | efer_write_trap = 0x8F, 264 | 265 | cr0_write_trap = 0x90, 266 | cr1_write_trap = 0x91, 267 | cr2_write_trap= 0x92, 268 | cr3_write_trap= 0x93, 269 | cr4_write_trap= 0x94, 270 | cr5_write_trap= 0x95, 271 | cr6_write_trap= 0x96, 272 | cr7_write_trap= 0x97, 273 | cr8_write_trap= 0x98, 274 | cr9_write_trap= 0x99, 275 | cr10_write_trap = 0x9a, 276 | cr11_write_trap = 0x9b, 277 | cr12_write_trap = 0x9c, 278 | cr13_write_trap = 0x9d, 279 | cr14_write_trap = 0x9e, 280 | cr15_write_trap = 0x9f, 281 | 282 | invlpgb = 0xA0, 283 | invlpgb_illegal = 0xA1, 284 | invpcid = 0xA2, 285 | mcommit = 0xA3, 286 | tlbsync = 0xA4, 287 | npf = 0x400, 288 | incomplete_ipi = 0x401, 289 | avic_noaccel = 0x402, 290 | vmgexit = 0x403, 291 | invalid = -1, 292 | busy = -2 293 | }; -------------------------------------------------------------------------------- /svm/svm/def/vprocessor-data.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "../../common-includes.hpp" 3 | #include "vmcb.hpp" 4 | #include "virtual-memory.hpp" 5 | 6 | namespace svm 7 | { 8 | typedef struct 9 | { 10 | PVOID msr_permissions_map; 11 | DECLSPEC_ALIGN(PAGE_SIZE) pml4_entry_4kb_t pml4_entries[1]; // 512 gb 12 | DECLSPEC_ALIGN(PAGE_SIZE) pdp_entry_4kb_t pdp_entries[512]; 13 | DECLSPEC_ALIGN(PAGE_SIZE) pd_entry_4kb_t pd_entries[512][512]; 14 | } shared_vcpu_t, * pshared_vcpu_t; 15 | 16 | typedef struct _vprocessor_data 17 | { 18 | union 19 | { 20 | DECLSPEC_ALIGN(PAGE_SIZE) uint8_t host_stack_limit[KERNEL_STACK_SIZE]; 21 | struct 22 | { 23 | uint8_t stack_contents[KERNEL_STACK_SIZE - (sizeof(PVOID) * 6) - sizeof(KTRAP_FRAME)]; 24 | KTRAP_FRAME trap_frame; 25 | uint64_t guest_vmcb_pa; // host rsp 26 | uint64_t host_vmcb_pa; 27 | _vprocessor_data* self; 28 | pshared_vcpu_t shared_vcpu; 29 | uint64_t padding1; // keep host rsp 16 bytes aligned 30 | uint64_t reserved1; 31 | } host_stack_layout; 32 | }; 33 | 34 | DECLSPEC_ALIGN(PAGE_SIZE) vmcb_t guest_vmcb; 35 | DECLSPEC_ALIGN(PAGE_SIZE) vmcb_t host_vmcb; 36 | DECLSPEC_ALIGN(PAGE_SIZE) uint8_t host_state_area[PAGE_SIZE]; 37 | } vcpu_t, * pvcpu_t; 38 | static_assert(sizeof(vcpu_t) == KERNEL_STACK_SIZE + PAGE_SIZE * 3, 39 | "vcpu_t size mismatch"); 40 | } -------------------------------------------------------------------------------- /svm/svm/handlers/cpuid.cpp: -------------------------------------------------------------------------------- 1 | #include "handlers.hpp" 2 | #include "../util/util.hpp" 3 | #pragma warning (disable : 4293) 4 | #pragma warning (disable : 26451) 5 | 6 | namespace svm 7 | { 8 | namespace handle 9 | { 10 | void cpuid(pvcpu_t vcpu, pguest_ctx_t guest_ctx) 11 | { 12 | int registers[4]; // eax ebx ecx edx 13 | int leaf, sub_leaf; 14 | segment_attributes_t attribute; 15 | 16 | // execute cpuid for request 17 | leaf = static_cast(guest_ctx->vprocessor_registers->rax); 18 | sub_leaf = static_cast(guest_ctx->vprocessor_registers->rcx); 19 | __cpuidex(registers, leaf, sub_leaf); 20 | 21 | switch (leaf) 22 | { 23 | //case static_cast(cpuid::processor_feature_id): 24 | // // specify hypervisor presence 25 | // registers[2] |= static_cast(cpuid::hypervisor_present_ex); 26 | // break; 27 | 28 | case static_cast(cpuid::hypervisor_vendor_id): 29 | // this is used in util::is_hypervisor_vendor_installed() 30 | // to check if the hypervisor is running 31 | registers[0] = static_cast(cpuid::hypervisor_vendor_id); // CPUID_HV_MAX 32 | registers[1] = ' mvs'; 33 | registers[2] = ' '; 34 | registers[3] = ' '; 35 | break; 36 | 37 | case static_cast(cpuid::hypervisor_interface): 38 | // specify that our hypervisor does not 39 | // conform to the Microsoft hypervisor interface 40 | registers[0] = '0#vH'; // Hv#0 41 | registers[1] = registers[2] = registers[3] = 0; 42 | break; 43 | 44 | case CPUID_UNLOAD: 45 | if (sub_leaf == CPUID_UNLOAD) 46 | { 47 | // unload 48 | attribute.value = vcpu->guest_vmcb.state_save_area.ss.attribute.value; 49 | if (attribute.fields.dpl == DPL_SYSTEM) 50 | guest_ctx->should_exit = true; 51 | } 52 | break; 53 | 54 | default: 55 | break; 56 | } 57 | 58 | // update the guest's gpr's used by cpuid 59 | guest_ctx->vprocessor_registers->rax = registers[0]; 60 | guest_ctx->vprocessor_registers->rbx = registers[1]; 61 | guest_ctx->vprocessor_registers->rcx = registers[2]; 62 | guest_ctx->vprocessor_registers->rdx = registers[3]; 63 | 64 | next_instruction; 65 | } 66 | } 67 | } -------------------------------------------------------------------------------- /svm/svm/handlers/handlers.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "../../common-includes.hpp" 3 | #include "../def/cpu.hpp" 4 | #include "../def/cpu.hpp" 5 | #include "../def/descriptors-info.hpp" 6 | #include "../def/vmexit.hpp" 7 | #include "../def/virtual-memory.hpp" 8 | #include "../def/vprocessor-data.hpp" 9 | #include "../util/util.hpp" 10 | 11 | #pragma warning (disable : 4244) 12 | #pragma warning (disable : 4293) 13 | #pragma warning (disable : 26451) 14 | 15 | #define next_instruction vcpu->guest_vmcb.state_save_area.rip = vcpu->guest_vmcb.control_area.next_rip 16 | 17 | namespace svm 18 | { 19 | namespace handle 20 | { 21 | void cpuid(pvcpu_t vprocessor_data, pguest_ctx_t guest_ctx); 22 | 23 | void msr(pvcpu_t vprocessor_data, pguest_ctx_t guest_ctx); 24 | 25 | void rdtsc(pvcpu_t vcpu, pguest_ctx_t guest_ctx); 26 | 27 | extern "C" bool __stdcall handle_vmexit(pvcpu_t vprocessor_data, pguest_registers_t guest_registers); 28 | } 29 | } -------------------------------------------------------------------------------- /svm/svm/handlers/msr.cpp: -------------------------------------------------------------------------------- 1 | #include "handlers.hpp" 2 | #include "../util/util.hpp" 3 | #pragma warning (disable : 4293) 4 | #pragma warning (disable : 26451) 5 | 6 | namespace svm 7 | { 8 | namespace handle 9 | { 10 | void msr(pvcpu_t vcpu, pguest_ctx_t guest_ctx) 11 | { 12 | ULARGE_INTEGER value; 13 | uint32_t msr; 14 | bool write_access; 15 | 16 | msr = guest_ctx->vprocessor_registers->rcx & MAXUINT; 17 | write_access = (vcpu->guest_vmcb.control_area.exit_info1 != 0); 18 | 19 | if (msr == IA32_MSR_EFER) 20 | { 21 | // vmexit on EFER access should only occur on write access. 22 | NT_ASSERT(write_access); 23 | 24 | value.LowPart = guest_ctx->vprocessor_registers->rax & MAXUINT; 25 | value.HighPart = guest_ctx->vprocessor_registers->rdx & MAXUINT; 26 | 27 | if ((value.QuadPart & EFER_SVME) == 0) 28 | util::invalid_opcode_exception(vcpu); // protect EFER.SVME bit by causing exeption 29 | 30 | // otherwise return the physical address of the value 31 | vcpu->guest_vmcb.state_save_area.efer = value.QuadPart; 32 | } 33 | else 34 | { 35 | if (write_access) 36 | { 37 | value.LowPart = guest_ctx->vprocessor_registers->rax & MAXUINT; 38 | value.HighPart = guest_ctx->vprocessor_registers->rdx & MAXUINT; 39 | __writemsr(msr, value.QuadPart); 40 | } 41 | else 42 | { 43 | value.QuadPart = __readmsr(msr); 44 | guest_ctx->vprocessor_registers->rax = value.LowPart; 45 | guest_ctx->vprocessor_registers->rdx = value.HighPart; 46 | } 47 | } 48 | 49 | next_instruction; 50 | } 51 | } 52 | } -------------------------------------------------------------------------------- /svm/svm/handlers/rdtsc.cpp: -------------------------------------------------------------------------------- 1 | #include "handlers.hpp" 2 | #include "../util/util.hpp" 3 | #pragma warning (disable : 4293) 4 | #pragma warning (disable : 26451) 5 | 6 | namespace svm 7 | { 8 | namespace handle 9 | { 10 | void rdtsc(pvcpu_t vcpu, pguest_ctx_t guest_ctx) 11 | { 12 | guest_ctx->vprocessor_registers->rax = static_cast(__rdtsc()); 13 | guest_ctx->vprocessor_registers->rdx = __rdtsc() >> 32; 14 | 15 | next_instruction; 16 | } 17 | } 18 | } -------------------------------------------------------------------------------- /svm/svm/handlers/vmexit.cpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "handlers.hpp" 3 | 4 | namespace svm 5 | { 6 | namespace handle 7 | { 8 | extern "C" bool __stdcall handle_vmexit(pvcpu_t vcpu, pguest_registers_t guest_registers) 9 | { 10 | guest_ctx_t guest_ctx; 11 | KIRQL old_irql; 12 | 13 | guest_ctx.vprocessor_registers = guest_registers; 14 | guest_ctx.should_exit = false; 15 | 16 | // load some of the host state which isn't loaded on vmexit 17 | __svm_vmload(vcpu->host_stack_layout.host_vmcb_pa); 18 | 19 | NT_ASSERT(vcpu->host_stack_layout.reserved1 == MAXUINT64); 20 | 21 | // not needed 22 | old_irql = KeGetCurrentIrql(); 23 | if (old_irql < DISPATCH_LEVEL) 24 | KeRaiseIrqlToDpcLevel(); 25 | 26 | // the guest's rax is overwritten by the hosts on vmexit 27 | // and saved in the vmcb instead 28 | guest_registers->rax = vcpu->guest_vmcb.state_save_area.rax; 29 | 30 | // update the _KTRAP_FRAME struct values in hypervisor stack, 31 | // so that windbg can reconstruct the guests stack frame 32 | vcpu->host_stack_layout.trap_frame.Rsp = vcpu->guest_vmcb.state_save_area.rsp; 33 | vcpu->host_stack_layout.trap_frame.Rip = vcpu->guest_vmcb.control_area.next_rip; 34 | 35 | // vmexit handling 36 | switch (vcpu->guest_vmcb.control_area.exit_code) 37 | { 38 | case vmexit::cpuid: 39 | handle::cpuid(vcpu, &guest_ctx); 40 | break; 41 | 42 | case vmexit::msr: 43 | handle::msr(vcpu, &guest_ctx); 44 | break; 45 | 46 | case vmexit::vmrun: 47 | util::general_protection_exeption(vcpu); 48 | break; 49 | 50 | case vmexit::vmload: 51 | util::general_protection_exeption(vcpu); 52 | break; 53 | 54 | case vmexit::vmsave: 55 | util::general_protection_exeption(vcpu); 56 | break; 57 | 58 | case vmexit::rdtsc: 59 | handle::rdtsc(vcpu, &guest_ctx); 60 | break; 61 | 62 | default: 63 | KeBugCheck(0xB16B00B5UL); 64 | } 65 | 66 | if (old_irql < DISPATCH_LEVEL) 67 | KeLowerIrql(old_irql); 68 | 69 | // terminate hypervisor 70 | if (guest_ctx.should_exit) 71 | { 72 | // RBX : address to return 73 | // RCX : stack pointer to restore 74 | // EDX:EAX : address of per processor data to be freed by the caller 75 | guest_ctx.vprocessor_registers->rax = reinterpret_cast(vcpu) & MAXUINT; 76 | guest_ctx.vprocessor_registers->rbx = vcpu->guest_vmcb.control_area.next_rip; 77 | guest_ctx.vprocessor_registers->rcx = vcpu->guest_vmcb.state_save_area.rsp; 78 | guest_ctx.vprocessor_registers->rdx = reinterpret_cast(vcpu) >> 32; 79 | 80 | // load guest state 81 | __svm_vmload(MmGetPhysicalAddress(&vcpu->guest_vmcb).QuadPart); 82 | 83 | // set the global interrupt flag (GIF), but still disable interrupts by 84 | // clearing IF. GIF must be set to return to the normal execution, but 85 | // interruptions are unwanted untill SVM is disabled as it would 86 | // execute random kernel-code in the host context. 87 | _disable(); 88 | __svm_stgi(); 89 | 90 | 91 | // disable svm and restore the guest rflags 92 | // this may enable interrupts 93 | __writemsr(IA32_MSR_EFER, 94 | __readmsr(IA32_MSR_EFER) & ~EFER_SVME); 95 | 96 | __writeeflags(vcpu->guest_vmcb.state_save_area.rflags); 97 | NT_ASSERT(vcpu->host_stack_layout.reserved1 == MAXUINT64); 98 | return guest_ctx.should_exit; 99 | } 100 | 101 | // update rax 102 | vcpu->guest_vmcb.state_save_area.rax = guest_ctx.vprocessor_registers->rax; 103 | NT_ASSERT(vcpu->host_stack_layout.reserved1 == MAXUINT64); 104 | return guest_ctx.should_exit; 105 | } 106 | } 107 | } -------------------------------------------------------------------------------- /svm/svm/svm.cpp: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sariaki/amd-hypervisor/99224ea59e8e6a616b03faabcb8cf2ac5228abd5/svm/svm/svm.cpp -------------------------------------------------------------------------------- /svm/svm/svm.hpp: -------------------------------------------------------------------------------- 1 | #pragma once 2 | #include "def/cpu.hpp" 3 | #include "def/descriptors-info.hpp" 4 | #include "def/vmexit.hpp" 5 | #include "def/virtual-memory.hpp" 6 | #include "def/vmcb.hpp" 7 | #include "def/vprocessor-data.hpp" 8 | #include "../common-includes.hpp" 9 | #include "util/util.hpp" 10 | #include "handlers/handlers.hpp" 11 | #pragma warning (disable : 4245) 12 | #pragma warning (disable : 4390) 13 | 14 | namespace svm 15 | { 16 | __declspec(noreturn) extern "C" void __stdcall vmenter(PVOID host_rsp); 17 | 18 | bool check_support(); 19 | 20 | void virtualize(PVOID); 21 | 22 | void devirtualize(); 23 | } -------------------------------------------------------------------------------- /svm/svm/util/util.cpp: -------------------------------------------------------------------------------- 1 | #include "util.hpp" 2 | 3 | namespace svm 4 | { 5 | namespace util 6 | { 7 | PVOID alloc_nonpaged_pool(size_t size) 8 | { 9 | PVOID memory; 10 | 11 | memory = ExAllocatePoolWithTag(NonPagedPool, size, 'vmm'); 12 | 13 | if (memory) 14 | { 15 | NT_ASSERT(PAGE_ALIGN(memory) == memory); 16 | RtlZeroMemory(memory, size); 17 | } 18 | 19 | return memory; 20 | } 21 | 22 | void free_nonpaged_pool(PVOID base) 23 | { 24 | ExFreePoolWithTag(base, 'vmm'); 25 | } 26 | 27 | PVOID alloc_contiguous_memory(size_t size) 28 | { 29 | PVOID memory; 30 | PHYSICAL_ADDRESS boundary, lowest, highest; 31 | 32 | boundary.QuadPart = lowest.QuadPart = 0; 33 | highest.QuadPart = -1; 34 | 35 | memory = MmAllocateContiguousMemorySpecifyCacheNode(size, 36 | lowest, 37 | highest, 38 | boundary, 39 | MmCached, 40 | MM_ANY_NODE_OK); 41 | 42 | if (memory) 43 | RtlZeroMemory(memory, size); 44 | 45 | return memory; 46 | } 47 | 48 | void free_contiguous_memory(PVOID base) 49 | { 50 | MmFreeContiguousMemory(base); 51 | } 52 | 53 | void setup_npt(pshared_vcpu_t shared_vprocessor_data) 54 | { 55 | uint64_t pdp_base_pa, pde_base_pa, translation_pa; 56 | 57 | // build one pml4 entry with subtables that control up to 512 gb of physical memory. 58 | // the pfn here points to a base physical address of the page directory pointer table 59 | pdp_base_pa = MmGetPhysicalAddress(&shared_vprocessor_data->pdp_entries).QuadPart; 60 | shared_vprocessor_data->pml4_entries[0].fields.page_frame_nr = pdp_base_pa >> PAGE_SHIFT; 61 | 62 | shared_vprocessor_data->pml4_entries[0].fields.valid = 1; 63 | shared_vprocessor_data->pml4_entries[0].fields.write = 1; 64 | shared_vprocessor_data->pml4_entries[0].fields.user = 1; 65 | 66 | // one pml4 entry controls 512 page directory pointer entries 67 | for (uint64_t i = 0; i < 512; i++) 68 | { 69 | // make the pfn point to the base physical address of the page directory table 70 | pde_base_pa = MmGetPhysicalAddress(&shared_vprocessor_data->pd_entries[i][0]).QuadPart; 71 | shared_vprocessor_data->pdp_entries[i].fields.page_frame_nr = pde_base_pa >> PAGE_SHIFT; 72 | shared_vprocessor_data->pdp_entries[i].fields.valid = 1; 73 | shared_vprocessor_data->pdp_entries[i].fields.write = 1; 74 | shared_vprocessor_data->pdp_entries[i].fields.user = 1; 75 | 76 | for (uint64_t j = 0; j < 512; j++) 77 | { 78 | // the page frame number points to a base physical address of 79 | // the system phyiscal address to be translated froma a guest physical address 80 | translation_pa = (i * 512) + j; 81 | shared_vprocessor_data->pd_entries[i][j].fields.page_frame_nr = translation_pa; 82 | shared_vprocessor_data->pd_entries[i][j].fields.valid = 1; 83 | shared_vprocessor_data->pd_entries[i][j].fields.write = 1; 84 | shared_vprocessor_data->pd_entries[i][j].fields.user = 1; 85 | shared_vprocessor_data->pd_entries[i][j].fields.large_page = 1; 86 | } 87 | } 88 | } 89 | 90 | void setup_msr_permissions_bitmap(PVOID msr_permissions) 91 | { 92 | RTL_BITMAP msr_bitmap; 93 | constexpr uint16_t bits_per_msr = 2; 94 | constexpr uint32_t msr_range_base = 0xC0000000; 95 | constexpr uint16_t bitmap_vector_size = 0x800 * CHAR_BIT; // 0x4000 96 | 97 | // initialize bitmap & clear bits 98 | // the AMD MSR bitmap is made up of four seperate bit vectors, 99 | // which are all 16 kbits (2 kbytes) or 0x4000 bytes in size 100 | RtlInitializeBitMap(&msr_bitmap, 101 | static_cast(msr_permissions), 102 | SVM_MSR_PERMISSIONS_MAP_SIZE * CHAR_BIT); 103 | RtlClearAllBits(&msr_bitmap); 104 | 105 | // write access interception for EFER MSR 106 | constexpr uint64_t offset_2nd_base = (IA32_MSR_EFER - msr_range_base) * bits_per_msr; 107 | constexpr uint64_t offset = offset_2nd_base + bitmap_vector_size; 108 | RtlSetBits(&msr_bitmap, offset + 1, 1); 109 | } 110 | 111 | typedef bool (*callback)(PVOID ctx); 112 | 113 | uint16_t execute_on_each_processor(callback callback, PVOID ctx) 114 | { 115 | NTSTATUS status; 116 | PROCESSOR_NUMBER processor_number; 117 | GROUP_AFFINITY affinity, previous_affinity; 118 | uint16_t i, processors; 119 | 120 | processors = KeQueryActiveProcessorCountEx(ALL_PROCESSOR_GROUPS); 121 | 122 | for (i = 0; i < processors; i++) 123 | { 124 | // get processor(s) 125 | status = KeGetProcessorNumberFromIndex(i, &processor_number); 126 | if (!NT_SUCCESS(status)) 127 | return 0; 128 | 129 | // switch code execution from processor i 130 | affinity.Group = processor_number.Group; 131 | affinity.Mask = 1ULL << processor_number.Number; 132 | affinity.Reserved[0] = affinity.Reserved[1] = affinity.Reserved[2] = 0; 133 | KeSetSystemGroupAffinityThread(&affinity, &previous_affinity); 134 | 135 | bool success = callback(ctx); 136 | 137 | // continue previously executed code 138 | KeRevertToUserGroupAffinityThread(&previous_affinity); 139 | 140 | if (!success) 141 | return i; 142 | 143 | } 144 | 145 | return i; 146 | } 147 | 148 | bool is_hypervisor_vendor_installed() 149 | { 150 | int registers[4]; // eax ebx ecx edx 151 | char vedor_id[13]; 152 | 153 | // when hypervisor is active, CPUID leaf 0x40000000 154 | // will return our own hypervisor vendor 155 | __cpuid(registers, static_cast(cpuid::hypervisor_vendor_id)); 156 | RtlCopyMemory(vedor_id + 0, ®isters[1], sizeof(registers[1])); 157 | RtlCopyMemory(vedor_id + 4, ®isters[2], sizeof(registers[2])); 158 | RtlCopyMemory(vedor_id + 8, ®isters[3], sizeof(registers[3])); 159 | vedor_id[12] = ANSI_NULL; 160 | 161 | return (strcmp(vedor_id, "svm ") == 0); 162 | } 163 | 164 | uint16_t get_segment_access_rights(uint16_t segment_selector, ULONG_PTR gdt_base) 165 | { 166 | psegment_descriptor_t descriptor; 167 | segment_attributes_t attribute; 168 | 169 | // get a corresponding segment desciptor to segment selector 170 | descriptor = reinterpret_cast( 171 | gdt_base + (segment_selector & ~RPL_MASK)); 172 | 173 | // get all attribute fields in the segment descriptor 174 | attribute.fields.type = descriptor->fields.type; 175 | attribute.fields.system = descriptor->fields.system; 176 | attribute.fields.dpl = descriptor->fields.dpl; 177 | attribute.fields.present = descriptor->fields.present; 178 | attribute.fields.avl = descriptor->fields.avl; 179 | attribute.fields.long_mode = descriptor->fields.long_mode; 180 | attribute.fields.default_bit = descriptor->fields.default_bit; 181 | attribute.fields.granularity = descriptor->fields.granularity; 182 | attribute.fields.reserved1 = 0; 183 | 184 | return attribute.value; 185 | } 186 | 187 | // https://wiki.osdev.org/Exceptions 188 | void general_protection_exeption(pvcpu_t vprocessor_data) 189 | { 190 | event_inj_t event; 191 | 192 | event.value = 0; 193 | event.fields.vector = 13; 194 | event.fields.type = 3; 195 | event.fields.error_code_valid = 1; 196 | event.fields.valid = 1; 197 | vprocessor_data->guest_vmcb.control_area.event_inj = event.value; 198 | } 199 | 200 | void invalid_opcode_exception(pvcpu_t vprocessor_data) 201 | { 202 | event_inj_t event; 203 | 204 | event.value = 0; 205 | event.fields.vector = 6; 206 | event.fields.type = 3; 207 | event.fields.error_code_valid = 1; 208 | event.fields.valid = 1; 209 | vprocessor_data->guest_vmcb.control_area.event_inj = event.value; 210 | } 211 | } 212 | } -------------------------------------------------------------------------------- /svm/svm/util/util.hpp: -------------------------------------------------------------------------------- 1 | #include "../def/cpu.hpp" 2 | #include "../../common-includes.hpp" 3 | #include "../def/descriptors-info.hpp" 4 | #include "../def/vmcb.hpp" 5 | #include "../def/vprocessor-data.hpp" 6 | #include "../def/vmexit.hpp" 7 | 8 | #pragma warning (disable : 4244) 9 | 10 | namespace svm 11 | { 12 | namespace util 13 | { 14 | typedef bool (*callback)(PVOID ctx); 15 | 16 | PVOID alloc_nonpaged_pool(size_t size); 17 | 18 | void free_nonpaged_pool(PVOID base); 19 | 20 | PVOID alloc_contiguous_memory(size_t size); 21 | 22 | void free_contiguous_memory(PVOID base); 23 | 24 | void setup_npt(pshared_vcpu_t shared_vprocessor_data); 25 | 26 | void setup_msr_permissions_bitmap(PVOID msr_permissions); 27 | 28 | uint16_t execute_on_each_processor(callback callback, PVOID ctx); 29 | 30 | bool is_hypervisor_vendor_installed(); 31 | 32 | uint16_t get_segment_access_rights(uint16_t segment_selector, ULONG_PTR gdt_base); 33 | 34 | void general_protection_exeption(pvcpu_t vprocessor_data); 35 | 36 | void invalid_opcode_exception(pvcpu_t vprocessor_data); 37 | 38 | uintptr_t get_kernel_dir_base(); 39 | 40 | uint64_t random(int min, int max); 41 | 42 | PPHYSICAL_MEMORY_DESCRIPTOR get_physical_memory_ranges_descriptor(); 43 | } 44 | } -------------------------------------------------------------------------------- /svm/svm/vmenter.asm: -------------------------------------------------------------------------------- 1 | 2 | .const 3 | 4 | KTRAP_FRAME_SIZE equ 190h 5 | MACHINE_FRAME_SIZE equ 28h 6 | 7 | .code 8 | 9 | extern handle_vmexit : proc 10 | 11 | PUSHAQ macro 12 | push rax 13 | push rcx 14 | push rdx 15 | push rbx 16 | push -1 17 | push rbp 18 | push rsi 19 | push rdi 20 | push r8 21 | push r9 22 | push r10 23 | push r11 24 | push r12 25 | push r13 26 | push r14 27 | push r15 28 | endm 29 | 30 | POPAQ macro 31 | pop r15 32 | pop r14 33 | pop r13 34 | pop r12 35 | pop r11 36 | pop r10 37 | pop r9 38 | pop r8 39 | pop rdi 40 | pop rsi 41 | pop rbp 42 | pop rbx 43 | pop rbx 44 | pop rdx 45 | pop rcx 46 | pop rax 47 | endm 48 | 49 | ; __stdcall uses RCX, RDX, R8, R9 in this order 50 | vmenter proc frame 51 | ; update the current stack pointer with the host RSP. this protects 52 | ; values stored on stack for the hypervisor from being overwritten by 53 | ; the guest due to a use of the same stack memory. 54 | mov rsp, rcx 55 | 56 | svm_loop: 57 | ; run the loop to executed the guest and handle vmexit. 58 | ; below is the current stack layout. 59 | 60 | ; rsp -> 0x...fd0 guest_vmcb_pa 61 | ; 0x...fd8 host_vmcb_pa 62 | ; 0x...fe0 self 63 | ; 0x...fe8 shared_vcpu_data 64 | ; 0x...ff0 padding1 65 | ; 0x...ff8 reserved1 66 | 67 | ; load previously saved guest state passed as a parameter from VMCB 68 | mov rax, [rsp] ; physical address of the guest vmcb 69 | vmload rax 70 | 71 | ; execute guest utill vmexit gets called 72 | vmrun rax ; switch to guest 73 | 74 | ; when vmexit does occur, save guest state to the vmcb 75 | ; make sure this is saved because host code will destroy it 76 | vmsave rax 77 | 78 | ; optionally, allocate the trap frame so that windbg can display a stack trace of the guest 79 | .pushframe 80 | sub rsp, KTRAP_FRAME_SIZE 81 | .allocstack KTRAP_FRAME_SIZE - MACHINE_FRAME_SIZE + 100h 82 | 83 | ; push all guest's GPRs since those are not saved anywhere by the 84 | ; processor on vmexit and will thereby otherwise be lost 85 | PUSHAQ ; stack pointer decreased 8 * 16 86 | 87 | ; prepare parameters for handle_vmexit. 88 | mov rdx, rsp ; rdx <= guest registers 89 | mov rcx, [rsp + 8 * 18 + KTRAP_FRAME_SIZE] ; rcx <= virtual processor data 90 | 91 | ; allocate stack for homing space (0x20) 92 | ; and volatile XMM registers(0x60) 93 | sub rsp, 80h 94 | 95 | ; save those registers because host code may destroy 96 | ; any of those registers. 97 | ; XMM6-15 are not saved because those should be 98 | ; preserved (those are non volatile registers). 99 | movaps xmmword ptr [rsp + 20h], xmm0 100 | movaps xmmword ptr [rsp + 30h], xmm1 101 | movaps xmmword ptr [rsp + 40h], xmm2 102 | movaps xmmword ptr [rsp + 50h], xmm3 103 | movaps xmmword ptr [rsp + 60h], xmm4 104 | movaps xmmword ptr [rsp + 70h], xmm5 105 | .endprolog 106 | 107 | ; call our vmexit handler with the args we prepared 108 | call handle_vmexit 109 | 110 | ; restore all xmm registers we saved 111 | movaps xmm5, xmmword ptr [rsp + 70h] 112 | movaps xmm4, xmmword ptr [rsp + 60h] 113 | movaps xmm3, xmmword ptr [rsp + 50h] 114 | movaps xmm2, xmmword ptr [rsp + 40h] 115 | movaps xmm1, xmmword ptr [rsp + 30h] 116 | movaps xmm0, xmmword ptr [rsp + 20h] 117 | add rsp, 80h 118 | 119 | 120 | ; check if handle_vmexit was successfull 121 | test al, al 122 | ; restore all gpr's we saved 123 | POPAQ 124 | 125 | ; If guest_ctx.ExitVm is true, this function exits the loop 126 | ; otherwise we continue the loop and resume the guest 127 | jnz vmexit ; if (ExitVm) jmp SvLV20 128 | ; else { restore rsp and go back into loop } 129 | add rsp, KTRAP_FRAME_SIZE 130 | jmp svm_loop 131 | 132 | vmexit: 133 | ; an exit has been requested 134 | ; restore the original stack ptr and return to the next instruction of cpuid 135 | ; RBX : address to return 136 | ; RCX : original stack pointer to restore 137 | ; EDX:EAX : address of per processor data for this processor 138 | mov rsp, rcx 139 | 140 | ; update RCX with the magic value 141 | mov ecx, 'svm' 142 | 143 | ; return to the next instruction of CPUID 144 | jmp rbx 145 | vmenter endp 146 | 147 | end -------------------------------------------------------------------------------- /usermode/main.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | 5 | std::string get_vendor_id() 6 | { 7 | int registers[4]; // eax ebx ecx edx 8 | char vedor_id[13]; 9 | 10 | // when hypervisor is active, CPUID leaf 0x40000000 11 | // should return our own hypervisor vendor 12 | __cpuid(registers, 0x40000000); 13 | RtlCopyMemory(vedor_id + 0, ®isters[1], sizeof(registers[1])); 14 | RtlCopyMemory(vedor_id + 4, ®isters[2], sizeof(registers[2])); 15 | RtlCopyMemory(vedor_id + 8, ®isters[3], sizeof(registers[3])); 16 | vedor_id[12] = ANSI_NULL; 17 | 18 | return vedor_id; 19 | } 20 | 21 | int main() 22 | { 23 | std::printf("[§] initializing\n"); 24 | std::printf("[§] hypervisor vendor -> %s\n", get_vendor_id()); 25 | std::getchar(); 26 | return 0; 27 | } 28 | -------------------------------------------------------------------------------- /usermode/usermode.vcxproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | Win32 7 | 8 | 9 | Release 10 | Win32 11 | 12 | 13 | Debug 14 | x64 15 | 16 | 17 | Release 18 | x64 19 | 20 | 21 | 22 | 16.0 23 | Win32Proj 24 | {0198aa0b-c30a-4a07-aa52-c955a228bc39} 25 | usermode 26 | 10.0 27 | 28 | 29 | 30 | Application 31 | true 32 | v142 33 | Unicode 34 | 35 | 36 | Application 37 | false 38 | v142 39 | true 40 | Unicode 41 | 42 | 43 | Application 44 | true 45 | v142 46 | MultiByte 47 | 48 | 49 | Application 50 | false 51 | v142 52 | true 53 | MultiByte 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | true 75 | 76 | 77 | false 78 | 79 | 80 | true 81 | 82 | 83 | false 84 | 85 | 86 | 87 | Level3 88 | true 89 | WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions) 90 | true 91 | 92 | 93 | Console 94 | true 95 | 96 | 97 | 98 | 99 | Level3 100 | true 101 | true 102 | true 103 | WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 104 | true 105 | 106 | 107 | Console 108 | true 109 | true 110 | true 111 | 112 | 113 | 114 | 115 | Level3 116 | true 117 | _DEBUG;_CONSOLE;%(PreprocessorDefinitions) 118 | true 119 | stdcpp20 120 | 121 | 122 | Console 123 | true 124 | 125 | 126 | 127 | 128 | Level3 129 | true 130 | true 131 | true 132 | NDEBUG;_CONSOLE;%(PreprocessorDefinitions) 133 | true 134 | stdcpp20 135 | 136 | 137 | Console 138 | true 139 | true 140 | true 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | -------------------------------------------------------------------------------- /usermode/usermode.vcxproj.filters: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | {4FC737F1-C7A5-4376-A066-2A32D752A2FF} 6 | cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx 7 | 8 | 9 | {93995380-89BD-4b04-88EB-625FBE52EBFB} 10 | h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd 11 | 12 | 13 | {67DA6AB6-F800-4c08-8B7A-83BB121AAD01} 14 | rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms 15 | 16 | 17 | 18 | 19 | Source Files 20 | 21 | 22 | -------------------------------------------------------------------------------- /usermode/usermode.vcxproj.user: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | true 5 | 6 | --------------------------------------------------------------------------------