Наука виртуализации

Многие читатели бложика являются практиками виртуализации, кто-то даже пытается заглянуть под капот и посмотреть как это устроено.

Сегодня я подобрал несколько актуальных ссылок на статьи, описывающие как работает на уровне процессора вложенная виртуализация, как самому написать гипервизор, зачем нужны инструкции процессора для аппаратной реализации функций виртуализации.

Virtualization Internals

Как написать гипервизор самому:

Вложенная виртуализация:

Out of Hypervisor (OoH): When Nested Virtualization Becomes Practical
Using SMT to Accelerate Nested Virtualization
The Turtles Project: Design and Implementation of Nested Virtualization – с чего начиналось
Improving KVM x86 Nested Virtualization

Для понимая поддержки аппаратной виртуализации в VMware ESXi есть довольно полезная, хоть и давно не обновлявшаяся таблица ESX(i) Support of Intel VT-x and AMD-V Features. Вроде, все функции были реализованы в 6.5/6.7:

Чтобы понять какие функции используют ваши виртуальные машины, достаточно открыть vmware.log после старта и найти раздел Host VT-x Capabilities:

2022-10-09T04:47:55.933Z In(05) vmx - Log for VMware ESX pid=2177955 version=7.0.3 build=build-20036589 option=Release
...
2022-10-09T04:47:55.941Z In(05) vmx - FeatureCompat: No EVC masks.
2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID vendor: GenuineIntel
2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID family: 0x6 model: 0x6a stepping: 0x6
2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID codename: Ice Lake SP
2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID name: Intel(R) Xeon(R) Gold 6354 CPU @ 3.00GHz
...
virtualHW.version = "19"
...
2022-10-09T04:47:56.046Z In(05) vmx - Host VT-x Capabilities:
2022-10-09T04:47:56.046Z In(05) vmx - Basic VMX Information (0x00da050000000013)
2022-10-09T04:47:56.046Z In(05) vmx - VMCS revision ID 19
2022-10-09T04:47:56.046Z In(05) vmx - VMCS region length 1280
2022-10-09T04:47:56.046Z In(05) vmx - VMX physical-address width natural
2022-10-09T04:47:56.046Z In(05) vmx - SMM dual-monitor mode yes
2022-10-09T04:47:56.046Z In(05) vmx - VMCS memory type WB
2022-10-09T04:47:56.046Z In(05) vmx - Advanced INS/OUTS info yes
2022-10-09T04:47:56.046Z In(05) vmx - True VMX MSRs yes
2022-10-09T04:47:56.046Z In(05) vmx - Exception Injection without error code no
2022-10-09T04:47:56.046Z In(05) vmx - True Pin-Based VM-Execution Controls (0x000000ff00000016)
2022-10-09T04:47:56.046Z In(05) vmx - External-interrupt exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - NMI exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Virtual NMIs {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Activate VMX-preemption timer {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Process posted interrupts {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - True Primary Processor-Based VM-Execution Controls (0xfff9fffe04006172)
2022-10-09T04:47:56.046Z In(05) vmx - Interrupt-window exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use TSC offsetting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - HLT exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - INVLPG exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - MWAIT exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - RDPMC exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - RDTSC exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - CR3-load exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - CR3-store exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Activate tertiary controls { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - CR8-load exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - CR8-store exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use TPR shadow {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - NMI-window exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - MOV-DR exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Unconditional I/O exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use I/O bitmaps {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Monitor trap flag {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use MSR bitmaps {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - MONITOR exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - PAUSE exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Activate secondary controls {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Secondary Processor-Based VM-Execution Controls (0x4bdfffff00000000)
2022-10-09T04:47:56.046Z In(05) vmx - Virtualize APIC accesses {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable EPT {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Descriptor-table exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable RDTSCP {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Virtualize x2APIC mode {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable VPID {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - WBINVD exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Unrestricted guest {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - APIC-register virtualization {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Virtual-interrupt delivery {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - PAUSE-loop exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - RDRAND exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable INVPCID {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable VM Functions {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use VMCS shadowing {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - ENCLS exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - RDSEED exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable PML {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - EPT-violation #VE {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Conceal VMX from PT {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable XSAVES/XRSTORS {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - PASID translation { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - Mode-based execute control for EPT {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Sub-page write permissions for EPT {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - PT uses guest physical addresses {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Use TSC scaling {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Enable UMWAIT and TPAUSE { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - Enable ENCLV in VMX non-root mode { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - Enable EPC Virtualization Extensions { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - Bus lock exiting {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Notification VM exits { 0 }
2022-10-09T04:47:56.046Z In(05) vmx - Tertiary Processor-Based VM-Execution Controls (0x0000000000000000)
2022-10-09T04:47:56.046Z In(05) vmx - LOADIWKEY exiting no
2022-10-09T04:47:56.046Z In(05) vmx - Enable HLAT no
2022-10-09T04:47:56.046Z In(05) vmx - Enable Paging-Write no
2022-10-09T04:47:56.046Z In(05) vmx - Enable Guest Paging Verification no
2022-10-09T04:47:56.046Z In(05) vmx - Enable IPI Virtualization no
2022-10-09T04:47:56.046Z In(05) vmx - True VM-Exit Controls (0x037fffff00036dfb)
2022-10-09T04:47:56.046Z In(05) vmx - Save debug controls {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Host address-space size {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Load IA32_PERF_GLOBAL_CTRL {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Acknowledge interrupt on exit {0,1}
2022-10-09T04:47:56.046Z In(05) vmx - Save IA32_PAT {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PAT {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Save IA32_EFER {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_EFER {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Save VMX-preemption timer {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_BNDCFGS { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Conceal VMX from processor trace {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_RTIT MSR {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_LBR_CTL MSR { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Clear user-interrupt notification vector { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Load CET state { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Load PKRS { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - True VM-Entry Controls (0x0006ffff000011fb)
2022-10-09T04:47:56.047Z In(05) vmx - Load debug controls {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - IA-32e mode guest {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Entry to SMM {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Deactivate dual-monitor mode {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PERF_GLOBAL_CTRL {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PAT {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_EFER {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_BNDCFGS { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Conceal VMX from processor trace {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_RTIT MSR {0,1}
2022-10-09T04:47:56.047Z In(05) vmx - Load user-interrupt notification vector { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Load CET state { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_LBR_CTL MSR { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - Load PKRS { 0 }
2022-10-09T04:47:56.047Z In(05) vmx - VPID and EPT Capabilities (0x00000f01067341c1)
2022-10-09T04:47:56.047Z In(05) vmx - R=0/W=0/X=1 yes
2022-10-09T04:47:56.047Z In(05) vmx - Page-walk length 3 yes
2022-10-09T04:47:56.047Z In(05) vmx - EPT memory type WB yes
2022-10-09T04:47:56.047Z In(05) vmx - 2MB super-page yes
2022-10-09T04:47:56.047Z In(05) vmx - 1GB super-page yes
2022-10-09T04:47:56.047Z In(05) vmx - INVEPT support yes
2022-10-09T04:47:56.047Z In(05) vmx - Access & Dirty Bits yes
2022-10-09T04:47:56.047Z In(05) vmx - Advanced VM exit information for EPT violations yes
2022-10-09T04:47:56.047Z In(05) vmx - Supervisor shadow-stack control no
2022-10-09T04:47:56.047Z In(05) vmx - Type 1 INVEPT yes
2022-10-09T04:47:56.047Z In(05) vmx - Type 2 INVEPT yes
2022-10-09T04:47:56.047Z In(05) vmx - INVVPID support yes
2022-10-09T04:47:56.047Z In(05) vmx - Type 0 INVVPID yes
2022-10-09T04:47:56.047Z In(05) vmx - Type 1 INVVPID yes
2022-10-09T04:47:56.047Z In(05) vmx - Type 2 INVVPID yes
2022-10-09T04:47:56.047Z In(05) vmx - Type 3 INVVPID yes
2022-10-09T04:47:56.047Z In(05) vmx - Miscellaneous VMX Data (0x000000007004c1e7)
2022-10-09T04:47:56.047Z In(05) vmx - TSC to preemption timer ratio 7
2022-10-09T04:47:56.047Z In(05) vmx - VM-Exit saves EFER.LMA yes
2022-10-09T04:47:56.047Z In(05) vmx - Activity State HLT yes
2022-10-09T04:47:56.047Z In(05) vmx - Activity State shutdown yes
2022-10-09T04:47:56.047Z In(05) vmx - Activity State wait-for-SIPI yes
2022-10-09T04:47:56.047Z In(05) vmx - Processor trace in VMX yes
2022-10-09T04:47:56.047Z In(05) vmx - RDMSR SMBASE MSR in SMM yes
2022-10-09T04:47:56.047Z In(05) vmx - CR3 targets supported 4
2022-10-09T04:47:56.047Z In(05) vmx - Maximum MSR list size 512
2022-10-09T04:47:56.047Z In(05) vmx - VMXOFF holdoff of SMIs yes
2022-10-09T04:47:56.047Z In(05) vmx - Allow all VMWRITEs yes
2022-10-09T04:47:56.047Z In(05) vmx - Allow zero instruction length yes
2022-10-09T04:47:56.047Z In(05) vmx - MSEG revision ID 0
2022-10-09T04:47:56.047Z In(05) vmx - VMX-Fixed Bits in CR0 (0x0000000080000021/0x00000000ffffffff)
2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 0 0xffffffff00000000
2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 1 0x0000000080000021
2022-10-09T04:47:56.047Z In(05) vmx - Variable 0x000000007fffffde
2022-10-09T04:47:56.047Z In(05) vmx - VMX-Fixed Bits in CR4 (0x0000000000002000/0x0000000000777fff)
2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 0 0xffffffffff888000
2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 1 0x0000000000002000
2022-10-09T04:47:56.047Z In(05) vmx - Variable 0x0000000000775fff
2022-10-09T04:47:56.047Z In(05) vmx - VMCS Enumeration (0x000000000000002e)
2022-10-09T04:47:56.047Z In(05) vmx - Highest index 0x17
2022-10-09T04:47:56.047Z In(05) vmx - VM Functions (0x0000000000000001)
2022-10-09T04:47:56.047Z In(05) vmx - Function 0 (EPTP-switching) supported.

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

2022-10-09T04:47:55.933Z In(05) vmx - Log for VMware ESX pid=2177955 version=7.0.3 build=build-20036589 option=Release

...

2022-10-09T04:47:55.941Z In(05) vmx - FeatureCompat: No EVC masks.

2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID vendor: GenuineIntel

2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID family: 0x6 model: 0x6a stepping: 0x6

2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID codename: Ice Lake SP

2022-10-09T04:47:55.941Z In(05) vmx - hostCPUID name: Intel(R) Xeon(R) Gold 6354 CPU @ 3.00GHz

...

virtualHW.version = "19"

...

2022-10-09T04:47:56.046Z In(05) vmx - Host VT-x Capabilities:

2022-10-09T04:47:56.046Z In(05) vmx - Basic VMX Information (0x00da050000000013)

2022-10-09T04:47:56.046Z In(05) vmx - VMCS revision ID 19

2022-10-09T04:47:56.046Z In(05) vmx - VMCS region length 1280

2022-10-09T04:47:56.046Z In(05) vmx - VMX physical-address width natural

2022-10-09T04:47:56.046Z In(05) vmx - SMM dual-monitor mode yes

2022-10-09T04:47:56.046Z In(05) vmx - VMCS memory type WB

2022-10-09T04:47:56.046Z In(05) vmx - Advanced INS/OUTS info yes

2022-10-09T04:47:56.046Z In(05) vmx - True VMX MSRs yes

2022-10-09T04:47:56.046Z In(05) vmx - Exception Injection without error code no

2022-10-09T04:47:56.046Z In(05) vmx - True Pin-Based VM-Execution Controls (0x000000ff00000016)

2022-10-09T04:47:56.046Z In(05) vmx - External-interrupt exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - NMI exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Virtual NMIs {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Activate VMX-preemption timer {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Process posted interrupts {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - True Primary Processor-Based VM-Execution Controls (0xfff9fffe04006172)

2022-10-09T04:47:56.046Z In(05) vmx - Interrupt-window exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use TSC offsetting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - HLT exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - INVLPG exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - MWAIT exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - RDPMC exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - RDTSC exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - CR3-load exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - CR3-store exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Activate tertiary controls { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - CR8-load exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - CR8-store exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use TPR shadow {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - NMI-window exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - MOV-DR exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Unconditional I/O exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use I/O bitmaps {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Monitor trap flag {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use MSR bitmaps {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - MONITOR exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - PAUSE exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Activate secondary controls {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Secondary Processor-Based VM-Execution Controls (0x4bdfffff00000000)

2022-10-09T04:47:56.046Z In(05) vmx - Virtualize APIC accesses {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable EPT {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Descriptor-table exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable RDTSCP {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Virtualize x2APIC mode {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable VPID {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - WBINVD exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Unrestricted guest {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - APIC-register virtualization {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Virtual-interrupt delivery {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - PAUSE-loop exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - RDRAND exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable INVPCID {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable VM Functions {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use VMCS shadowing {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - ENCLS exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - RDSEED exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable PML {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - EPT-violation #VE {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Conceal VMX from PT {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable XSAVES/XRSTORS {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - PASID translation { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - Mode-based execute control for EPT {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Sub-page write permissions for EPT {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - PT uses guest physical addresses {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Use TSC scaling {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Enable UMWAIT and TPAUSE { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - Enable ENCLV in VMX non-root mode { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - Enable EPC Virtualization Extensions { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - Bus lock exiting {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Notification VM exits { 0 }

2022-10-09T04:47:56.046Z In(05) vmx - Tertiary Processor-Based VM-Execution Controls (0x0000000000000000)

2022-10-09T04:47:56.046Z In(05) vmx - LOADIWKEY exiting no

2022-10-09T04:47:56.046Z In(05) vmx - Enable HLAT no

2022-10-09T04:47:56.046Z In(05) vmx - Enable Paging-Write no

2022-10-09T04:47:56.046Z In(05) vmx - Enable Guest Paging Verification no

2022-10-09T04:47:56.046Z In(05) vmx - Enable IPI Virtualization no

2022-10-09T04:47:56.046Z In(05) vmx - True VM-Exit Controls (0x037fffff00036dfb)

2022-10-09T04:47:56.046Z In(05) vmx - Save debug controls {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Host address-space size {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Load IA32_PERF_GLOBAL_CTRL {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Acknowledge interrupt on exit {0,1}

2022-10-09T04:47:56.046Z In(05) vmx - Save IA32_PAT {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PAT {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Save IA32_EFER {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_EFER {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Save VMX-preemption timer {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_BNDCFGS { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Conceal VMX from processor trace {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_RTIT MSR {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Clear IA32_LBR_CTL MSR { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Clear user-interrupt notification vector { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Load CET state { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Load PKRS { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - True VM-Entry Controls (0x0006ffff000011fb)

2022-10-09T04:47:56.047Z In(05) vmx - Load debug controls {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - IA-32e mode guest {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Entry to SMM {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Deactivate dual-monitor mode {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PERF_GLOBAL_CTRL {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_PAT {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_EFER {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_BNDCFGS { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Conceal VMX from processor trace {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_RTIT MSR {0,1}

2022-10-09T04:47:56.047Z In(05) vmx - Load user-interrupt notification vector { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Load CET state { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Load IA32_LBR_CTL MSR { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - Load PKRS { 0 }

2022-10-09T04:47:56.047Z In(05) vmx - VPID and EPT Capabilities (0x00000f01067341c1)

2022-10-09T04:47:56.047Z In(05) vmx - R=0/W=0/X=1 yes

2022-10-09T04:47:56.047Z In(05) vmx - Page-walk length 3 yes

2022-10-09T04:47:56.047Z In(05) vmx - EPT memory type WB yes

2022-10-09T04:47:56.047Z In(05) vmx - 2MB super-page yes

2022-10-09T04:47:56.047Z In(05) vmx - 1GB super-page yes

2022-10-09T04:47:56.047Z In(05) vmx - INVEPT support yes

2022-10-09T04:47:56.047Z In(05) vmx - Access & Dirty Bits yes

2022-10-09T04:47:56.047Z In(05) vmx - Advanced VM exit information for EPT violations yes

2022-10-09T04:47:56.047Z In(05) vmx - Supervisor shadow-stack control no

2022-10-09T04:47:56.047Z In(05) vmx - Type 1 INVEPT yes

2022-10-09T04:47:56.047Z In(05) vmx - Type 2 INVEPT yes

2022-10-09T04:47:56.047Z In(05) vmx - INVVPID support yes

2022-10-09T04:47:56.047Z In(05) vmx - Type 0 INVVPID yes

2022-10-09T04:47:56.047Z In(05) vmx - Type 1 INVVPID yes

2022-10-09T04:47:56.047Z In(05) vmx - Type 2 INVVPID yes

2022-10-09T04:47:56.047Z In(05) vmx - Type 3 INVVPID yes

2022-10-09T04:47:56.047Z In(05) vmx - Miscellaneous VMX Data (0x000000007004c1e7)

2022-10-09T04:47:56.047Z In(05) vmx - TSC to preemption timer ratio 7

2022-10-09T04:47:56.047Z In(05) vmx - VM-Exit saves EFER.LMA yes

2022-10-09T04:47:56.047Z In(05) vmx - Activity State HLT yes

2022-10-09T04:47:56.047Z In(05) vmx - Activity State shutdown yes

2022-10-09T04:47:56.047Z In(05) vmx - Activity State wait-for-SIPI yes

2022-10-09T04:47:56.047Z In(05) vmx - Processor trace in VMX yes

2022-10-09T04:47:56.047Z In(05) vmx - RDMSR SMBASE MSR in SMM yes

2022-10-09T04:47:56.047Z In(05) vmx - CR3 targets supported 4

2022-10-09T04:47:56.047Z In(05) vmx - Maximum MSR list size 512

2022-10-09T04:47:56.047Z In(05) vmx - VMXOFF holdoff of SMIs yes

2022-10-09T04:47:56.047Z In(05) vmx - Allow all VMWRITEs yes

2022-10-09T04:47:56.047Z In(05) vmx - Allow zero instruction length yes

2022-10-09T04:47:56.047Z In(05) vmx - MSEG revision ID 0

2022-10-09T04:47:56.047Z In(05) vmx - VMX-Fixed Bits in CR0 (0x0000000080000021/0x00000000ffffffff)

2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 0 0xffffffff00000000

2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 1 0x0000000080000021

2022-10-09T04:47:56.047Z In(05) vmx - Variable 0x000000007fffffde

2022-10-09T04:47:56.047Z In(05) vmx - VMX-Fixed Bits in CR4 (0x0000000000002000/0x0000000000777fff)

2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 0 0xffffffffff888000

2022-10-09T04:47:56.047Z In(05) vmx - Fixed to 1 0x0000000000002000

2022-10-09T04:47:56.047Z In(05) vmx - Variable 0x0000000000775fff

2022-10-09T04:47:56.047Z In(05) vmx - VMCS Enumeration (0x000000000000002e)

2022-10-09T04:47:56.047Z In(05) vmx - Highest index 0x17

2022-10-09T04:47:56.047Z In(05) vmx - VM Functions (0x0000000000000001)

2022-10-09T04:47:56.047Z In(05) vmx - Function 0 (EPTP-switching) supported.

3 thoughts on “Наука виртуализации”

Mister Nobody says:

October 13, 2022 at 9:52 am

Читатели шлют обратную связь:
Есть такой цикл с красивыми графиками и материалом попроще, жаль последние 2 части вряд ли уже выйдут:
Virtualization Internals Part 1 – Intro to Virtualization
https://webcache.googleusercontent.com/search?q=cache:LY7b8tSIq-UJ:https://about.saferwall.com/blog/virtualization-internals-part-1-intro-to-virtualization
Virtualization Internals Part 2 – VMware and Full Virtualization using Binary Translation
https://webcache.googleusercontent.com/search?q=cache:3nTDgz0QmeIJ:https://about.saferwall.com/blog/virtualization-internals-part-2-vmware-and-virtualization-using-binary-translation
Virtualization Internals Part 3 – Xen and Paravirtualization
https://webcache.googleusercontent.com/search?q=cache:IMTfFjuVCpwJ:https://about.saferwall.com/blog/virtualization-internals-part-3-xen-and-paravirtualization
Virtualization Internals Part 4 – KVM and Qemu
Virtualization Internals Part 5 – Virtualization with Intel VT-x

И ещё эта статья (у автора они все интересные), где всё совсем понятно:
https://habr.com/ru/company/intel/blog/196444/

Anonymous says:

November 29, 2023 at 3:08 pm

Статьи ожили по другому адресу:
https://docs.saferwall.com/blog/virtualization-internals-part-1-intro-to-virtualization

1. Mister Nobody says:
  
  November 30, 2023 at 5:21 am
  
  Разместил в основном тексте статьи

3 thoughts on “Наука виртуализации”

Leave a Reply Cancel reply