summaryrefslogtreecommitdiff
path: root/vendor/github.com/klauspost/cpuid/v2/cpuid.go
diff options
context:
space:
mode:
authorLibravatar dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>2024-03-11 10:12:06 +0000
committerLibravatar GitHub <noreply@github.com>2024-03-11 10:12:06 +0000
commite24efcac8b67baa9454bf27631e5e49f898a88d4 (patch)
treed9adec2f05e1d8714edee66062a4b95a81ee2a61 /vendor/github.com/klauspost/cpuid/v2/cpuid.go
parent[bugfix] Fix whitespace move_id issue (#2742) (diff)
downloadgotosocial-e24efcac8b67baa9454bf27631e5e49f898a88d4.tar.xz
[chore]: Bump github.com/gin-contrib/cors from 1.5.0 to 1.7.0 (#2745)
Diffstat (limited to 'vendor/github.com/klauspost/cpuid/v2/cpuid.go')
-rw-r--r--vendor/github.com/klauspost/cpuid/v2/cpuid.go427
1 files changed, 234 insertions, 193 deletions
diff --git a/vendor/github.com/klauspost/cpuid/v2/cpuid.go b/vendor/github.com/klauspost/cpuid/v2/cpuid.go
index 15b760337..805f5e7b4 100644
--- a/vendor/github.com/klauspost/cpuid/v2/cpuid.go
+++ b/vendor/github.com/klauspost/cpuid/v2/cpuid.go
@@ -67,195 +67,200 @@ const (
// Keep index -1 as unknown
UNKNOWN = -1
- // Add features
- ADX FeatureID = iota // Intel ADX (Multi-Precision Add-Carry Instruction Extensions)
- AESNI // Advanced Encryption Standard New Instructions
- AMD3DNOW // AMD 3DNOW
- AMD3DNOWEXT // AMD 3DNowExt
- AMXBF16 // Tile computational operations on BFLOAT16 numbers
- AMXFP16 // Tile computational operations on FP16 numbers
- AMXINT8 // Tile computational operations on 8-bit integers
- AMXTILE // Tile architecture
- APX_F // Intel APX
- AVX // AVX functions
- AVX10 // If set the Intel AVX10 Converged Vector ISA is supported
- AVX10_128 // If set indicates that AVX10 128-bit vector support is present
- AVX10_256 // If set indicates that AVX10 256-bit vector support is present
- AVX10_512 // If set indicates that AVX10 512-bit vector support is present
- AVX2 // AVX2 functions
- AVX512BF16 // AVX-512 BFLOAT16 Instructions
- AVX512BITALG // AVX-512 Bit Algorithms
- AVX512BW // AVX-512 Byte and Word Instructions
- AVX512CD // AVX-512 Conflict Detection Instructions
- AVX512DQ // AVX-512 Doubleword and Quadword Instructions
- AVX512ER // AVX-512 Exponential and Reciprocal Instructions
- AVX512F // AVX-512 Foundation
- AVX512FP16 // AVX-512 FP16 Instructions
- AVX512IFMA // AVX-512 Integer Fused Multiply-Add Instructions
- AVX512PF // AVX-512 Prefetch Instructions
- AVX512VBMI // AVX-512 Vector Bit Manipulation Instructions
- AVX512VBMI2 // AVX-512 Vector Bit Manipulation Instructions, Version 2
- AVX512VL // AVX-512 Vector Length Extensions
- AVX512VNNI // AVX-512 Vector Neural Network Instructions
- AVX512VP2INTERSECT // AVX-512 Intersect for D/Q
- AVX512VPOPCNTDQ // AVX-512 Vector Population Count Doubleword and Quadword
- AVXIFMA // AVX-IFMA instructions
- AVXNECONVERT // AVX-NE-CONVERT instructions
- AVXSLOW // Indicates the CPU performs 2 128 bit operations instead of one
- AVXVNNI // AVX (VEX encoded) VNNI neural network instructions
- AVXVNNIINT8 // AVX-VNNI-INT8 instructions
- BHI_CTRL // Branch History Injection and Intra-mode Branch Target Injection / CVE-2022-0001, CVE-2022-0002 / INTEL-SA-00598
- BMI1 // Bit Manipulation Instruction Set 1
- BMI2 // Bit Manipulation Instruction Set 2
- CETIBT // Intel CET Indirect Branch Tracking
- CETSS // Intel CET Shadow Stack
- CLDEMOTE // Cache Line Demote
- CLMUL // Carry-less Multiplication
- CLZERO // CLZERO instruction supported
- CMOV // i686 CMOV
- CMPCCXADD // CMPCCXADD instructions
- CMPSB_SCADBS_SHORT // Fast short CMPSB and SCASB
- CMPXCHG8 // CMPXCHG8 instruction
- CPBOOST // Core Performance Boost
- CPPC // AMD: Collaborative Processor Performance Control
- CX16 // CMPXCHG16B Instruction
- EFER_LMSLE_UNS // AMD: =Core::X86::Msr::EFER[LMSLE] is not supported, and MBZ
- ENQCMD // Enqueue Command
- ERMS // Enhanced REP MOVSB/STOSB
- F16C // Half-precision floating-point conversion
- FLUSH_L1D // Flush L1D cache
- FMA3 // Intel FMA 3. Does not imply AVX.
- FMA4 // Bulldozer FMA4 functions
- FP128 // AMD: When set, the internal FP/SIMD execution datapath is no more than 128-bits wide
- FP256 // AMD: When set, the internal FP/SIMD execution datapath is no more than 256-bits wide
- FSRM // Fast Short Rep Mov
- FXSR // FXSAVE, FXRESTOR instructions, CR4 bit 9
- FXSROPT // FXSAVE/FXRSTOR optimizations
- GFNI // Galois Field New Instructions. May require other features (AVX, AVX512VL,AVX512F) based on usage.
- HLE // Hardware Lock Elision
- HRESET // If set CPU supports history reset and the IA32_HRESET_ENABLE MSR
- HTT // Hyperthreading (enabled)
- HWA // Hardware assert supported. Indicates support for MSRC001_10
- HYBRID_CPU // This part has CPUs of more than one type.
- HYPERVISOR // This bit has been reserved by Intel & AMD for use by hypervisors
- IA32_ARCH_CAP // IA32_ARCH_CAPABILITIES MSR (Intel)
- IA32_CORE_CAP // IA32_CORE_CAPABILITIES MSR
- IBPB // Indirect Branch Restricted Speculation (IBRS) and Indirect Branch Predictor Barrier (IBPB)
- IBRS // AMD: Indirect Branch Restricted Speculation
- IBRS_PREFERRED // AMD: IBRS is preferred over software solution
- IBRS_PROVIDES_SMP // AMD: IBRS provides Same Mode Protection
- IBS // Instruction Based Sampling (AMD)
- IBSBRNTRGT // Instruction Based Sampling Feature (AMD)
- IBSFETCHSAM // Instruction Based Sampling Feature (AMD)
- IBSFFV // Instruction Based Sampling Feature (AMD)
- IBSOPCNT // Instruction Based Sampling Feature (AMD)
- IBSOPCNTEXT // Instruction Based Sampling Feature (AMD)
- IBSOPSAM // Instruction Based Sampling Feature (AMD)
- IBSRDWROPCNT // Instruction Based Sampling Feature (AMD)
- IBSRIPINVALIDCHK // Instruction Based Sampling Feature (AMD)
- IBS_FETCH_CTLX // AMD: IBS fetch control extended MSR supported
- IBS_OPDATA4 // AMD: IBS op data 4 MSR supported
- IBS_OPFUSE // AMD: Indicates support for IbsOpFuse
- IBS_PREVENTHOST // Disallowing IBS use by the host supported
- IBS_ZEN4 // AMD: Fetch and Op IBS support IBS extensions added with Zen4
- IDPRED_CTRL // IPRED_DIS
- INT_WBINVD // WBINVD/WBNOINVD are interruptible.
- INVLPGB // NVLPGB and TLBSYNC instruction supported
- KEYLOCKER // Key locker
- KEYLOCKERW // Key locker wide
- LAHF // LAHF/SAHF in long mode
- LAM // If set, CPU supports Linear Address Masking
- LBRVIRT // LBR virtualization
- LZCNT // LZCNT instruction
- MCAOVERFLOW // MCA overflow recovery support.
- MCDT_NO // Processor do not exhibit MXCSR Configuration Dependent Timing behavior and do not need to mitigate it.
- MCOMMIT // MCOMMIT instruction supported
- MD_CLEAR // VERW clears CPU buffers
- MMX // standard MMX
- MMXEXT // SSE integer functions or AMD MMX ext
- MOVBE // MOVBE instruction (big-endian)
- MOVDIR64B // Move 64 Bytes as Direct Store
- MOVDIRI // Move Doubleword as Direct Store
- MOVSB_ZL // Fast Zero-Length MOVSB
- MOVU // AMD: MOVU SSE instructions are more efficient and should be preferred to SSE MOVL/MOVH. MOVUPS is more efficient than MOVLPS/MOVHPS. MOVUPD is more efficient than MOVLPD/MOVHPD
- MPX // Intel MPX (Memory Protection Extensions)
- MSRIRC // Instruction Retired Counter MSR available
- MSRLIST // Read/Write List of Model Specific Registers
- MSR_PAGEFLUSH // Page Flush MSR available
- NRIPS // Indicates support for NRIP save on VMEXIT
- NX // NX (No-Execute) bit
- OSXSAVE // XSAVE enabled by OS
- PCONFIG // PCONFIG for Intel Multi-Key Total Memory Encryption
- POPCNT // POPCNT instruction
- PPIN // AMD: Protected Processor Inventory Number support. Indicates that Protected Processor Inventory Number (PPIN) capability can be enabled
- PREFETCHI // PREFETCHIT0/1 instructions
- PSFD // Predictive Store Forward Disable
- RDPRU // RDPRU instruction supported
- RDRAND // RDRAND instruction is available
- RDSEED // RDSEED instruction is available
- RDTSCP // RDTSCP Instruction
- RRSBA_CTRL // Restricted RSB Alternate
- RTM // Restricted Transactional Memory
- RTM_ALWAYS_ABORT // Indicates that the loaded microcode is forcing RTM abort.
- SERIALIZE // Serialize Instruction Execution
- SEV // AMD Secure Encrypted Virtualization supported
- SEV_64BIT // AMD SEV guest execution only allowed from a 64-bit host
- SEV_ALTERNATIVE // AMD SEV Alternate Injection supported
- SEV_DEBUGSWAP // Full debug state swap supported for SEV-ES guests
- SEV_ES // AMD SEV Encrypted State supported
- SEV_RESTRICTED // AMD SEV Restricted Injection supported
- SEV_SNP // AMD SEV Secure Nested Paging supported
- SGX // Software Guard Extensions
- SGXLC // Software Guard Extensions Launch Control
- SHA // Intel SHA Extensions
- SME // AMD Secure Memory Encryption supported
- SME_COHERENT // AMD Hardware cache coherency across encryption domains enforced
- SPEC_CTRL_SSBD // Speculative Store Bypass Disable
- SRBDS_CTRL // SRBDS mitigation MSR available
- SSE // SSE functions
- SSE2 // P4 SSE functions
- SSE3 // Prescott SSE3 functions
- SSE4 // Penryn SSE4.1 functions
- SSE42 // Nehalem SSE4.2 functions
- SSE4A // AMD Barcelona microarchitecture SSE4a instructions
- SSSE3 // Conroe SSSE3 functions
- STIBP // Single Thread Indirect Branch Predictors
- STIBP_ALWAYSON // AMD: Single Thread Indirect Branch Prediction Mode has Enhanced Performance and may be left Always On
- STOSB_SHORT // Fast short STOSB
- SUCCOR // Software uncorrectable error containment and recovery capability.
- SVM // AMD Secure Virtual Machine
- SVMDA // Indicates support for the SVM decode assists.
- SVMFBASID // SVM, Indicates that TLB flush events, including CR3 writes and CR4.PGE toggles, flush only the current ASID's TLB entries. Also indicates support for the extended VMCBTLB_Control
- SVML // AMD SVM lock. Indicates support for SVM-Lock.
- SVMNP // AMD SVM nested paging
- SVMPF // SVM pause intercept filter. Indicates support for the pause intercept filter
- SVMPFT // SVM PAUSE filter threshold. Indicates support for the PAUSE filter cycle count threshold
- SYSCALL // System-Call Extension (SCE): SYSCALL and SYSRET instructions.
- SYSEE // SYSENTER and SYSEXIT instructions
- TBM // AMD Trailing Bit Manipulation
- TDX_GUEST // Intel Trust Domain Extensions Guest
- TLB_FLUSH_NESTED // AMD: Flushing includes all the nested translations for guest translations
- TME // Intel Total Memory Encryption. The following MSRs are supported: IA32_TME_CAPABILITY, IA32_TME_ACTIVATE, IA32_TME_EXCLUDE_MASK, and IA32_TME_EXCLUDE_BASE.
- TOPEXT // TopologyExtensions: topology extensions support. Indicates support for CPUID Fn8000_001D_EAX_x[N:0]-CPUID Fn8000_001E_EDX.
- TSCRATEMSR // MSR based TSC rate control. Indicates support for MSR TSC ratio MSRC000_0104
- TSXLDTRK // Intel TSX Suspend Load Address Tracking
- VAES // Vector AES. AVX(512) versions requires additional checks.
- VMCBCLEAN // VMCB clean bits. Indicates support for VMCB clean bits.
- VMPL // AMD VM Permission Levels supported
- VMSA_REGPROT // AMD VMSA Register Protection supported
- VMX // Virtual Machine Extensions
- VPCLMULQDQ // Carry-Less Multiplication Quadword. Requires AVX for 3 register versions.
- VTE // AMD Virtual Transparent Encryption supported
- WAITPKG // TPAUSE, UMONITOR, UMWAIT
- WBNOINVD // Write Back and Do Not Invalidate Cache
- WRMSRNS // Non-Serializing Write to Model Specific Register
- X87 // FPU
- XGETBV1 // Supports XGETBV with ECX = 1
- XOP // Bulldozer XOP functions
- XSAVE // XSAVE, XRESTOR, XSETBV, XGETBV
- XSAVEC // Supports XSAVEC and the compacted form of XRSTOR.
- XSAVEOPT // XSAVEOPT available
- XSAVES // Supports XSAVES/XRSTORS and IA32_XSS
+ // x86 features
+ ADX FeatureID = iota // Intel ADX (Multi-Precision Add-Carry Instruction Extensions)
+ AESNI // Advanced Encryption Standard New Instructions
+ AMD3DNOW // AMD 3DNOW
+ AMD3DNOWEXT // AMD 3DNowExt
+ AMXBF16 // Tile computational operations on BFLOAT16 numbers
+ AMXFP16 // Tile computational operations on FP16 numbers
+ AMXINT8 // Tile computational operations on 8-bit integers
+ AMXTILE // Tile architecture
+ APX_F // Intel APX
+ AVX // AVX functions
+ AVX10 // If set the Intel AVX10 Converged Vector ISA is supported
+ AVX10_128 // If set indicates that AVX10 128-bit vector support is present
+ AVX10_256 // If set indicates that AVX10 256-bit vector support is present
+ AVX10_512 // If set indicates that AVX10 512-bit vector support is present
+ AVX2 // AVX2 functions
+ AVX512BF16 // AVX-512 BFLOAT16 Instructions
+ AVX512BITALG // AVX-512 Bit Algorithms
+ AVX512BW // AVX-512 Byte and Word Instructions
+ AVX512CD // AVX-512 Conflict Detection Instructions
+ AVX512DQ // AVX-512 Doubleword and Quadword Instructions
+ AVX512ER // AVX-512 Exponential and Reciprocal Instructions
+ AVX512F // AVX-512 Foundation
+ AVX512FP16 // AVX-512 FP16 Instructions
+ AVX512IFMA // AVX-512 Integer Fused Multiply-Add Instructions
+ AVX512PF // AVX-512 Prefetch Instructions
+ AVX512VBMI // AVX-512 Vector Bit Manipulation Instructions
+ AVX512VBMI2 // AVX-512 Vector Bit Manipulation Instructions, Version 2
+ AVX512VL // AVX-512 Vector Length Extensions
+ AVX512VNNI // AVX-512 Vector Neural Network Instructions
+ AVX512VP2INTERSECT // AVX-512 Intersect for D/Q
+ AVX512VPOPCNTDQ // AVX-512 Vector Population Count Doubleword and Quadword
+ AVXIFMA // AVX-IFMA instructions
+ AVXNECONVERT // AVX-NE-CONVERT instructions
+ AVXSLOW // Indicates the CPU performs 2 128 bit operations instead of one
+ AVXVNNI // AVX (VEX encoded) VNNI neural network instructions
+ AVXVNNIINT8 // AVX-VNNI-INT8 instructions
+ BHI_CTRL // Branch History Injection and Intra-mode Branch Target Injection / CVE-2022-0001, CVE-2022-0002 / INTEL-SA-00598
+ BMI1 // Bit Manipulation Instruction Set 1
+ BMI2 // Bit Manipulation Instruction Set 2
+ CETIBT // Intel CET Indirect Branch Tracking
+ CETSS // Intel CET Shadow Stack
+ CLDEMOTE // Cache Line Demote
+ CLMUL // Carry-less Multiplication
+ CLZERO // CLZERO instruction supported
+ CMOV // i686 CMOV
+ CMPCCXADD // CMPCCXADD instructions
+ CMPSB_SCADBS_SHORT // Fast short CMPSB and SCASB
+ CMPXCHG8 // CMPXCHG8 instruction
+ CPBOOST // Core Performance Boost
+ CPPC // AMD: Collaborative Processor Performance Control
+ CX16 // CMPXCHG16B Instruction
+ EFER_LMSLE_UNS // AMD: =Core::X86::Msr::EFER[LMSLE] is not supported, and MBZ
+ ENQCMD // Enqueue Command
+ ERMS // Enhanced REP MOVSB/STOSB
+ F16C // Half-precision floating-point conversion
+ FLUSH_L1D // Flush L1D cache
+ FMA3 // Intel FMA 3. Does not imply AVX.
+ FMA4 // Bulldozer FMA4 functions
+ FP128 // AMD: When set, the internal FP/SIMD execution datapath is no more than 128-bits wide
+ FP256 // AMD: When set, the internal FP/SIMD execution datapath is no more than 256-bits wide
+ FSRM // Fast Short Rep Mov
+ FXSR // FXSAVE, FXRESTOR instructions, CR4 bit 9
+ FXSROPT // FXSAVE/FXRSTOR optimizations
+ GFNI // Galois Field New Instructions. May require other features (AVX, AVX512VL,AVX512F) based on usage.
+ HLE // Hardware Lock Elision
+ HRESET // If set CPU supports history reset and the IA32_HRESET_ENABLE MSR
+ HTT // Hyperthreading (enabled)
+ HWA // Hardware assert supported. Indicates support for MSRC001_10
+ HYBRID_CPU // This part has CPUs of more than one type.
+ HYPERVISOR // This bit has been reserved by Intel & AMD for use by hypervisors
+ IA32_ARCH_CAP // IA32_ARCH_CAPABILITIES MSR (Intel)
+ IA32_CORE_CAP // IA32_CORE_CAPABILITIES MSR
+ IBPB // Indirect Branch Restricted Speculation (IBRS) and Indirect Branch Predictor Barrier (IBPB)
+ IBPB_BRTYPE // Indicates that MSR 49h (PRED_CMD) bit 0 (IBPB) flushes all branch type predictions from the CPU branch predictor
+ IBRS // AMD: Indirect Branch Restricted Speculation
+ IBRS_PREFERRED // AMD: IBRS is preferred over software solution
+ IBRS_PROVIDES_SMP // AMD: IBRS provides Same Mode Protection
+ IBS // Instruction Based Sampling (AMD)
+ IBSBRNTRGT // Instruction Based Sampling Feature (AMD)
+ IBSFETCHSAM // Instruction Based Sampling Feature (AMD)
+ IBSFFV // Instruction Based Sampling Feature (AMD)
+ IBSOPCNT // Instruction Based Sampling Feature (AMD)
+ IBSOPCNTEXT // Instruction Based Sampling Feature (AMD)
+ IBSOPSAM // Instruction Based Sampling Feature (AMD)
+ IBSRDWROPCNT // Instruction Based Sampling Feature (AMD)
+ IBSRIPINVALIDCHK // Instruction Based Sampling Feature (AMD)
+ IBS_FETCH_CTLX // AMD: IBS fetch control extended MSR supported
+ IBS_OPDATA4 // AMD: IBS op data 4 MSR supported
+ IBS_OPFUSE // AMD: Indicates support for IbsOpFuse
+ IBS_PREVENTHOST // Disallowing IBS use by the host supported
+ IBS_ZEN4 // AMD: Fetch and Op IBS support IBS extensions added with Zen4
+ IDPRED_CTRL // IPRED_DIS
+ INT_WBINVD // WBINVD/WBNOINVD are interruptible.
+ INVLPGB // NVLPGB and TLBSYNC instruction supported
+ KEYLOCKER // Key locker
+ KEYLOCKERW // Key locker wide
+ LAHF // LAHF/SAHF in long mode
+ LAM // If set, CPU supports Linear Address Masking
+ LBRVIRT // LBR virtualization
+ LZCNT // LZCNT instruction
+ MCAOVERFLOW // MCA overflow recovery support.
+ MCDT_NO // Processor do not exhibit MXCSR Configuration Dependent Timing behavior and do not need to mitigate it.
+ MCOMMIT // MCOMMIT instruction supported
+ MD_CLEAR // VERW clears CPU buffers
+ MMX // standard MMX
+ MMXEXT // SSE integer functions or AMD MMX ext
+ MOVBE // MOVBE instruction (big-endian)
+ MOVDIR64B // Move 64 Bytes as Direct Store
+ MOVDIRI // Move Doubleword as Direct Store
+ MOVSB_ZL // Fast Zero-Length MOVSB
+ MOVU // AMD: MOVU SSE instructions are more efficient and should be preferred to SSE MOVL/MOVH. MOVUPS is more efficient than MOVLPS/MOVHPS. MOVUPD is more efficient than MOVLPD/MOVHPD
+ MPX // Intel MPX (Memory Protection Extensions)
+ MSRIRC // Instruction Retired Counter MSR available
+ MSRLIST // Read/Write List of Model Specific Registers
+ MSR_PAGEFLUSH // Page Flush MSR available
+ NRIPS // Indicates support for NRIP save on VMEXIT
+ NX // NX (No-Execute) bit
+ OSXSAVE // XSAVE enabled by OS
+ PCONFIG // PCONFIG for Intel Multi-Key Total Memory Encryption
+ POPCNT // POPCNT instruction
+ PPIN // AMD: Protected Processor Inventory Number support. Indicates that Protected Processor Inventory Number (PPIN) capability can be enabled
+ PREFETCHI // PREFETCHIT0/1 instructions
+ PSFD // Predictive Store Forward Disable
+ RDPRU // RDPRU instruction supported
+ RDRAND // RDRAND instruction is available
+ RDSEED // RDSEED instruction is available
+ RDTSCP // RDTSCP Instruction
+ RRSBA_CTRL // Restricted RSB Alternate
+ RTM // Restricted Transactional Memory
+ RTM_ALWAYS_ABORT // Indicates that the loaded microcode is forcing RTM abort.
+ SBPB // Indicates support for the Selective Branch Predictor Barrier
+ SERIALIZE // Serialize Instruction Execution
+ SEV // AMD Secure Encrypted Virtualization supported
+ SEV_64BIT // AMD SEV guest execution only allowed from a 64-bit host
+ SEV_ALTERNATIVE // AMD SEV Alternate Injection supported
+ SEV_DEBUGSWAP // Full debug state swap supported for SEV-ES guests
+ SEV_ES // AMD SEV Encrypted State supported
+ SEV_RESTRICTED // AMD SEV Restricted Injection supported
+ SEV_SNP // AMD SEV Secure Nested Paging supported
+ SGX // Software Guard Extensions
+ SGXLC // Software Guard Extensions Launch Control
+ SHA // Intel SHA Extensions
+ SME // AMD Secure Memory Encryption supported
+ SME_COHERENT // AMD Hardware cache coherency across encryption domains enforced
+ SPEC_CTRL_SSBD // Speculative Store Bypass Disable
+ SRBDS_CTRL // SRBDS mitigation MSR available
+ SRSO_MSR_FIX // Indicates that software may use MSR BP_CFG[BpSpecReduce] to mitigate SRSO.
+ SRSO_NO // Indicates the CPU is not subject to the SRSO vulnerability
+ SRSO_USER_KERNEL_NO // Indicates the CPU is not subject to the SRSO vulnerability across user/kernel boundaries
+ SSE // SSE functions
+ SSE2 // P4 SSE functions
+ SSE3 // Prescott SSE3 functions
+ SSE4 // Penryn SSE4.1 functions
+ SSE42 // Nehalem SSE4.2 functions
+ SSE4A // AMD Barcelona microarchitecture SSE4a instructions
+ SSSE3 // Conroe SSSE3 functions
+ STIBP // Single Thread Indirect Branch Predictors
+ STIBP_ALWAYSON // AMD: Single Thread Indirect Branch Prediction Mode has Enhanced Performance and may be left Always On
+ STOSB_SHORT // Fast short STOSB
+ SUCCOR // Software uncorrectable error containment and recovery capability.
+ SVM // AMD Secure Virtual Machine
+ SVMDA // Indicates support for the SVM decode assists.
+ SVMFBASID // SVM, Indicates that TLB flush events, including CR3 writes and CR4.PGE toggles, flush only the current ASID's TLB entries. Also indicates support for the extended VMCBTLB_Control
+ SVML // AMD SVM lock. Indicates support for SVM-Lock.
+ SVMNP // AMD SVM nested paging
+ SVMPF // SVM pause intercept filter. Indicates support for the pause intercept filter
+ SVMPFT // SVM PAUSE filter threshold. Indicates support for the PAUSE filter cycle count threshold
+ SYSCALL // System-Call Extension (SCE): SYSCALL and SYSRET instructions.
+ SYSEE // SYSENTER and SYSEXIT instructions
+ TBM // AMD Trailing Bit Manipulation
+ TDX_GUEST // Intel Trust Domain Extensions Guest
+ TLB_FLUSH_NESTED // AMD: Flushing includes all the nested translations for guest translations
+ TME // Intel Total Memory Encryption. The following MSRs are supported: IA32_TME_CAPABILITY, IA32_TME_ACTIVATE, IA32_TME_EXCLUDE_MASK, and IA32_TME_EXCLUDE_BASE.
+ TOPEXT // TopologyExtensions: topology extensions support. Indicates support for CPUID Fn8000_001D_EAX_x[N:0]-CPUID Fn8000_001E_EDX.
+ TSCRATEMSR // MSR based TSC rate control. Indicates support for MSR TSC ratio MSRC000_0104
+ TSXLDTRK // Intel TSX Suspend Load Address Tracking
+ VAES // Vector AES. AVX(512) versions requires additional checks.
+ VMCBCLEAN // VMCB clean bits. Indicates support for VMCB clean bits.
+ VMPL // AMD VM Permission Levels supported
+ VMSA_REGPROT // AMD VMSA Register Protection supported
+ VMX // Virtual Machine Extensions
+ VPCLMULQDQ // Carry-Less Multiplication Quadword. Requires AVX for 3 register versions.
+ VTE // AMD Virtual Transparent Encryption supported
+ WAITPKG // TPAUSE, UMONITOR, UMWAIT
+ WBNOINVD // Write Back and Do Not Invalidate Cache
+ WRMSRNS // Non-Serializing Write to Model Specific Register
+ X87 // FPU
+ XGETBV1 // Supports XGETBV with ECX = 1
+ XOP // Bulldozer XOP functions
+ XSAVE // XSAVE, XRESTOR, XSETBV, XGETBV
+ XSAVEC // Supports XSAVEC and the compacted form of XRSTOR.
+ XSAVEOPT // XSAVEOPT available
+ XSAVES // Supports XSAVES/XRSTORS and IA32_XSS
// ARM features:
AESARM // AES instructions
@@ -309,10 +314,11 @@ type CPUInfo struct {
L2 int // L2 Cache (per core or shared). Will be -1 if undetected
L3 int // L3 Cache (per core, per ccx or shared). Will be -1 if undetected
}
- SGX SGXSupport
- AVX10Level uint8
- maxFunc uint32
- maxExFunc uint32
+ SGX SGXSupport
+ AMDMemEncryption AMDMemEncryptionSupport
+ AVX10Level uint8
+ maxFunc uint32
+ maxExFunc uint32
}
var cpuid func(op uint32) (eax, ebx, ecx, edx uint32)
@@ -1079,6 +1085,32 @@ func hasSGX(available, lc bool) (rval SGXSupport) {
return
}
+type AMDMemEncryptionSupport struct {
+ Available bool
+ CBitPossition uint32
+ NumVMPL uint32
+ PhysAddrReduction uint32
+ NumEntryptedGuests uint32
+ MinSevNoEsAsid uint32
+}
+
+func hasAMDMemEncryption(available bool) (rval AMDMemEncryptionSupport) {
+ rval.Available = available
+ if !available {
+ return
+ }
+
+ _, b, c, d := cpuidex(0x8000001f, 0)
+
+ rval.CBitPossition = b & 0x3f
+ rval.PhysAddrReduction = (b >> 6) & 0x3F
+ rval.NumVMPL = (b >> 12) & 0xf
+ rval.NumEntryptedGuests = c
+ rval.MinSevNoEsAsid = d
+
+ return
+}
+
func support() flagSet {
var fs flagSet
mfi := maxFunctionID()
@@ -1418,6 +1450,15 @@ func support() flagSet {
fs.setIf((a>>24)&1 == 1, VMSA_REGPROT)
}
+ if maxExtendedFunction() >= 0x80000021 && vend == AMD {
+ a, _, _, _ := cpuid(0x80000021)
+ fs.setIf((a>>31)&1 == 1, SRSO_MSR_FIX)
+ fs.setIf((a>>30)&1 == 1, SRSO_USER_KERNEL_NO)
+ fs.setIf((a>>29)&1 == 1, SRSO_NO)
+ fs.setIf((a>>28)&1 == 1, IBPB_BRTYPE)
+ fs.setIf((a>>27)&1 == 1, SBPB)
+ }
+
if mfi >= 0x20 {
// Microsoft has decided to purposefully hide the information
// of the guest TEE when VMs are being created using Hyper-V.