Available CPUs:
x86 486 (alias configured by machine type)
x86 486-v1
x86 Broadwell (alias configured by machine type)
x86 Broadwell-IBRS (alias of Broadwell-v3)
x86 Broadwell-noTSX (alias of Broadwell-v2)
x86 Broadwell-noTSX-IBRS (alias of Broadwell-v4)
x86 Broadwell-v1 Intel Core Processor (Broadwell)
x86 Broadwell-v2 Intel Core Processor (Broadwell, no TSX)
x86 Broadwell-v3 Intel Core Processor (Broadwell, IBRS)
x86 Broadwell-v4 Intel Core Processor (Broadwell, no TSX, IBRS)
x86 Cascadelake-Server (alias configured by machine type)
x86 Cascadelake-Server-noTSX (alias of Cascadelake-Server-v3)
x86 Cascadelake-Server-v1 Intel Xeon Processor (Cascadelake)
x86 Cascadelake-Server-v2 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES]
x86 Cascadelake-Server-v3 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, no TSX]
x86 Cascadelake-Server-v4 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, no TSX]
x86 Cascadelake-Server-v5 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, EPT switching, XSAVES, no TSX]
x86 Conroe (alias configured by machine type)
x86 Conroe-v1 Intel Celeron_4x0 (Conroe/Merom Class Core 2)
x86 Cooperlake (alias configured by machine type)
x86 Cooperlake-v1 Intel Xeon Processor (Cooperlake)
x86 Cooperlake-v2 Intel Xeon Processor (Cooperlake) [XSAVES]
x86 Denverton (alias configured by machine type)
x86 Denverton-v1 Intel Atom Processor (Denverton)
x86 Denverton-v2 Intel Atom Processor (Denverton) [no MPX, no MONITOR]
x86 Denverton-v3 Intel Atom Processor (Denverton) [XSAVES, no MPX, no MONITOR]
x86 Dhyana (alias configured by machine type)
x86 Dhyana-v1 Hygon Dhyana Processor
x86 Dhyana-v2 Hygon Dhyana Processor [XSAVES]
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Milan (alias configured by machine type)
x86 EPYC-Milan-v1 AMD EPYC-Milan Processor
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-Rome-v2 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
x86 Haswell (alias configured by machine type)
x86 Haswell-IBRS (alias of Haswell-v3)
x86 Haswell-noTSX (alias of Haswell-v2)
x86 Haswell-noTSX-IBRS (alias of Haswell-v4)
x86 Haswell-v1 Intel Core Processor (Haswell)
x86 Haswell-v2 Intel Core Processor (Haswell, no TSX)
x86 Haswell-v3 Intel Core Processor (Haswell, IBRS)
x86 Haswell-v4 Intel Core Processor (Haswell, no TSX, IBRS)
x86 Icelake-Client (alias configured by machine type)
x86 Icelake-Client-noTSX (alias of Icelake-Client-v2)
x86 Icelake-Client-v1 Intel Core Processor (Icelake) [deprecated]
x86 Icelake-Client-v2 Intel Core Processor (Icelake) [no TSX, deprecated]
x86 Icelake-Client-v3 Intel Core Processor (Icelake) [no TSX, XSAVES, deprecated]
x86 Icelake-Server (alias configured by machine type)
x86 Icelake-Server-noTSX (alias of Icelake-Server-v2)
x86 Icelake-Server-v1 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v2 Intel Xeon Processor (Icelake) [no TSX]
x86 Icelake-Server-v3 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v4 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v5 Intel Xeon Processor (Icelake) [XSAVES]
x86 Icelake-Server-v6 Intel Xeon Processor (Icelake) [5-level EPT]
x86 IvyBridge (alias configured by machine type)
x86 IvyBridge-IBRS (alias of IvyBridge-v2)
x86 IvyBridge-v1 Intel Xeon E3-12xx v2 (Ivy Bridge)
x86 IvyBridge-v2 Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS)
x86 KnightsMill (alias configured by machine type)
x86 KnightsMill-v1 Intel Xeon Phi Processor (Knights Mill)
x86 Nehalem (alias configured by machine type)
x86 Nehalem-IBRS (alias of Nehalem-v2)
x86 Nehalem-v1 Intel Core i7 9xx (Nehalem Class Core i7)
x86 Nehalem-v2 Intel Core i7 9xx (Nehalem Core i7, IBRS update)
x86 Opteron_G1 (alias configured by machine type)
x86 Opteron_G1-v1 AMD Opteron 240 (Gen 1 Class Opteron)
x86 Opteron_G2 (alias configured by machine type)
x86 Opteron_G2-v1 AMD Opteron 22xx (Gen 2 Class Opteron)
x86 Opteron_G3 (alias configured by machine type)
x86 Opteron_G3-v1 AMD Opteron 23xx (Gen 3 Class Opteron)
x86 Opteron_G4 (alias configured by machine type)
x86 Opteron_G4-v1 AMD Opteron 62xx class CPU
x86 Opteron_G5 (alias configured by machine type)
x86 Opteron_G5-v1 AMD Opteron 63xx class CPU
x86 Penryn (alias configured by machine type)
x86 Penryn-v1 Intel Core 2 Duo P9xxx (Penryn Class Core 2)
x86 SandyBridge (alias configured by machine type)
x86 SandyBridge-IBRS (alias of SandyBridge-v2)
x86 SandyBridge-v1 Intel Xeon E312xx (Sandy Bridge)
x86 SandyBridge-v2 Intel Xeon E312xx (Sandy Bridge, IBRS update)
x86 Skylake-Client (alias configured by machine type)
x86 Skylake-Client-IBRS (alias of Skylake-Client-v2)
x86 Skylake-Client-noTSX-IBRS (alias of Skylake-Client-v3)
x86 Skylake-Client-v1 Intel Core Processor (Skylake)
x86 Skylake-Client-v2 Intel Core Processor (Skylake, IBRS)
x86 Skylake-Client-v3 Intel Core Processor (Skylake, IBRS, no TSX)
x86 Skylake-Client-v4 Intel Core Processor (Skylake, IBRS, no TSX) [IBRS, XSAVES, no TSX]
x86 Skylake-Server (alias configured by machine type)
x86 Skylake-Server-IBRS (alias of Skylake-Server-v2)
x86 Skylake-Server-noTSX-IBRS (alias of Skylake-Server-v3)
x86 Skylake-Server-v1 Intel Xeon Processor (Skylake)
x86 Skylake-Server-v2 Intel Xeon Processor (Skylake, IBRS)
x86 Skylake-Server-v3 Intel Xeon Processor (Skylake, IBRS, no TSX)
x86 Skylake-Server-v4 Intel Xeon Processor (Skylake, IBRS, no TSX)
x86 Skylake-Server-v5 Intel Xeon Processor (Skylake, IBRS, no TSX) [IBRS, XSAVES, EPT switching, no TSX]
x86 Snowridge (alias configured by machine type)
x86 Snowridge-v1 Intel Atom Processor (SnowRidge)
x86 Snowridge-v2 Intel Atom Processor (Snowridge, no MPX)
x86 Snowridge-v3 Intel Atom Processor (Snowridge, no MPX) [XSAVES, no MPX]
x86 Snowridge-v4 Intel Atom Processor (Snowridge, no MPX) [no split lock detect, no core-capability]
x86 Westmere (alias configured by machine type)
x86 Westmere-IBRS (alias of Westmere-v2)
x86 Westmere-v1 Westmere E56xx/L56xx/X56xx (Nehalem-C)
x86 Westmere-v2 Westmere E56xx/L56xx/X56xx (IBRS update)
x86 athlon (alias configured by machine type)
x86 athlon-v1 QEMU Virtual CPU version 2.5+
x86 core2duo (alias configured by machine type)
x86 core2duo-v1 Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz
x86 coreduo (alias configured by machine type)
x86 coreduo-v1 Genuine Intel(R) CPU T2600 @ 2.16GHz
x86 kvm32 (alias configured by machine type)
x86 kvm32-v1 Common 32-bit KVM processor
x86 kvm64 (alias configured by machine type)
x86 kvm64-v1 Common KVM processor
x86 n270 (alias configured by machine type)
x86 n270-v1 Intel(R) Atom(TM) CPU N270 @ 1.60GHz
x86 pentium (alias configured by machine type)
x86 pentium-v1
x86 pentium2 (alias configured by machine type)
x86 pentium2-v1
x86 pentium3 (alias configured by machine type)
x86 pentium3-v1
x86 phenom (alias configured by machine type)
x86 phenom-v1 AMD Phenom(tm) 9550 Quad-Core Processor
x86 qemu32 (alias configured by machine type)
x86 qemu32-v1 QEMU Virtual CPU version 2.5+
x86 qemu64 (alias configured by machine type)
x86 qemu64-v1 QEMU Virtual CPU version 2.5+
x86 base base CPU model type with no features enabled
x86 host processor with all supported host features
x86 max Enables all features supported by the accelerator in the current host
Recognized CPUID flags:
3dnow 3dnowext 3dnowprefetch abm ace2 ace2-en acpi adx aes amd-no-ssb
amd-ssbd amd-stibp amx-bf16 amx-int8 amx-tile apic arat arch-capabilities
avic avx avx-vnni avx2 avx512-4fmaps avx512-4vnniw avx512-bf16
avx512-fp16 avx512-vp2intersect avx512-vpopcntdq avx512bitalg avx512bw
avx512cd avx512dq avx512er avx512f avx512ifma avx512pf avx512vbmi
avx512vbmi2 avx512vl avx512vnni bmi1 bmi2 bus-lock-detect cid cldemote
clflush clflushopt clwb clzero cmov cmp-legacy core-capability cr8legacy
cx16 cx8 dca de decodeassists ds ds-cpl dtes64 erms est extapic f16c
flushbyasid fma fma4 fpu fsgsbase fsrm full-width-write fxsr fxsr-opt
gfni hle ht hypervisor ia64 ibpb ibrs ibrs-all ibs intel-pt intel-pt-lip
invpcid invtsc kvm-asyncpf kvm-asyncpf-int kvm-hint-dedicated kvm-mmu
kvm-msi-ext-dest-id kvm-nopiodelay kvm-poll-control kvm-pv-eoi kvm-pv-ipi
kvm-pv-sched-yield kvm-pv-tlb-flush kvm-pv-unhalt kvm-steal-time kvmclock
kvmclock kvmclock-stable-bit la57 lahf-lm lbrv lm lwp mca mce md-clear
mds-no misalignsse mmx mmxext monitor movbe movdir64b movdiri mpx msr
mtrr nodeid-msr npt nrip-save nx osvw pae pat pause-filter pbe pcid
pclmulqdq pcommit pdcm pdpe1gb perfctr-core perfctr-nb pfthreshold pge
phe phe-en pks pku pmm pmm-en pn pni popcnt pschange-mc-no pse pse36
rdctl-no rdpid rdrand rdseed rdtscp rsba rtm sep serialize sgx sgx-debug
sgx-exinfo sgx-kss sgx-mode64 sgx-provisionkey sgx-tokenkey sgx1 sgx2
sgxlc sha-ni skinit skip-l1dfl-vmentry smap smep smx spec-ctrl
split-lock-detect ss ssb-no ssbd sse sse2 sse4.1 sse4.2 sse4a ssse3 stibp
svm svm-lock svme-addr-chk syscall taa-no tbm tce tm tm2 topoext tsc
tsc-adjust tsc-deadline tsc-scale tsx-ctrl tsx-ldtrk umip v-vmsave-vmload
vaes vgif virt-ssbd vmcb-clean vme vmx vmx-activity-hlt
vmx-activity-shutdown vmx-activity-wait-sipi vmx-apicv-register
vmx-apicv-vid vmx-apicv-x2apic vmx-apicv-xapic vmx-cr3-load-noexit
vmx-cr3-store-noexit vmx-cr8-load-exit vmx-cr8-store-exit vmx-desc-exit
vmx-encls-exit vmx-entry-ia32e-mode vmx-entry-load-bndcfgs
vmx-entry-load-efer vmx-entry-load-pat vmx-entry-load-perf-global-ctrl
vmx-entry-load-pkrs vmx-entry-load-rtit-ctl vmx-entry-noload-debugctl
vmx-ept vmx-ept-1gb vmx-ept-2mb vmx-ept-advanced-exitinfo
vmx-ept-execonly vmx-eptad vmx-eptp-switching vmx-exit-ack-intr
vmx-exit-clear-bndcfgs vmx-exit-clear-rtit-ctl vmx-exit-load-efer
vmx-exit-load-pat vmx-exit-load-perf-global-ctrl vmx-exit-load-pkrs
vmx-exit-nosave-debugctl vmx-exit-save-efer vmx-exit-save-pat
vmx-exit-save-preemption-timer vmx-flexpriority vmx-hlt-exit vmx-ins-outs
vmx-intr-exit vmx-invept vmx-invept-all-context vmx-invept-single-context
vmx-invept-single-context vmx-invept-single-context-noglobals
vmx-invlpg-exit vmx-invpcid-exit vmx-invvpid vmx-invvpid-all-context
vmx-invvpid-single-addr vmx-io-bitmap vmx-io-exit vmx-monitor-exit
vmx-movdr-exit vmx-msr-bitmap vmx-mtf vmx-mwait-exit vmx-nmi-exit
vmx-page-walk-4 vmx-page-walk-5 vmx-pause-exit vmx-ple vmx-pml
vmx-posted-intr vmx-preemption-timer vmx-rdpmc-exit vmx-rdrand-exit
vmx-rdseed-exit vmx-rdtsc-exit vmx-rdtscp-exit vmx-secondary-ctls
vmx-shadow-vmcs vmx-store-lma vmx-true-ctls vmx-tsc-offset
vmx-tsc-scaling vmx-unrestricted-guest vmx-vintr-pending vmx-vmfunc
vmx-vmwrite-vmexit-fields vmx-vnmi vmx-vnmi-pending vmx-vpid
vmx-wbinvd-exit vmx-xsaves vmx-zero-len-inject vpclmulqdq waitpkg
wbnoinvd wdt x2apic xcrypt xcrypt-en xfd xgetbv1 xop xsave xsavec
xsaveerptr xsaveopt xsaves xstore xstore-en xtpr
$qemu-system-i386-cpu help
Available CPUs:
x86 486 (alias configured by machine type)
x86 486-v1
x86 Broadwell (alias configured by machine type)
x86 Broadwell-IBRS (alias of Broadwell-v3)
x86 Broadwell-noTSX (alias of Broadwell-v2)
x86 Broadwell-noTSX-IBRS (alias of Broadwell-v4)
x86 Broadwell-v1 Intel Core Processor (Broadwell)
x86 Broadwell-v2 Intel Core Processor (Broadwell, no TSX)
x86 Broadwell-v3 Intel Core Processor (Broadwell, IBRS)
x86 Broadwell-v4 Intel Core Processor (Broadwell, no TSX, IBRS)
x86 Cascadelake-Server (alias configured by machine type)
x86 Cascadelake-Server-noTSX (alias of Cascadelake-Server-v3)
x86 Cascadelake-Server-v1 Intel Xeon Processor (Cascadelake)
x86 Cascadelake-Server-v2 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES]
x86 Cascadelake-Server-v3 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, no TSX]
x86 Cascadelake-Server-v4 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, no TSX]
x86 Cascadelake-Server-v5 Intel Xeon Processor (Cascadelake) [ARCH_CAPABILITIES, EPT switching, XSAVES, no TSX]
x86 Conroe (alias configured by machine type)
x86 Conroe-v1 Intel Celeron_4x0 (Conroe/Merom Class Core 2)
x86 Cooperlake (alias configured by machine type)
x86 Cooperlake-v1 Intel Xeon Processor (Cooperlake)
x86 Cooperlake-v2 Intel Xeon Processor (Cooperlake) [XSAVES]
x86 Denverton (alias configured by machine type)
x86 Denverton-v1 Intel Atom Processor (Denverton)
x86 Denverton-v2 Intel Atom Processor (Denverton) [no MPX, no MONITOR]
x86 Denverton-v3 Intel Atom Processor (Denverton) [XSAVES, no MPX, no MONITOR]
x86 Dhyana (alias configured by machine type)
x86 Dhyana-v1 Hygon Dhyana Processor
x86 Dhyana-v2 Hygon Dhyana Processor [XSAVES]
x86 EPYC (alias configured by machine type)
x86 EPYC-IBPB (alias of EPYC-v2)
x86 EPYC-Milan (alias configured by machine type)
x86 EPYC-Milan-v1 AMD EPYC-Milan Processor
x86 EPYC-Rome (alias configured by machine type)
x86 EPYC-Rome-v1 AMD EPYC-Rome Processor
x86 EPYC-Rome-v2 AMD EPYC-Rome Processor
x86 EPYC-v1 AMD EPYC Processor
x86 EPYC-v2 AMD EPYC Processor (with IBPB)
x86 EPYC-v3 AMD EPYC Processor
x86 Haswell (alias configured by machine type)
x86 Haswell-IBRS (alias of Haswell-v3)
x86 Haswell-noTSX (alias of Haswell-v2)
x86 Haswell-noTSX-IBRS (alias of Haswell-v4)
x86 Haswell-v1 Intel Core Processor (Haswell)
x86 Haswell-v2 Intel Core Processor (Haswell, no TSX)
x86 Haswell-v3 Intel Core Processor (Haswell, IBRS)
x86 Haswell-v4 Intel Core Processor (Haswell, no TSX, IBRS)
x86 Icelake-Client (alias configured by machine type)
x86 Icelake-Client-noTSX (alias of Icelake-Client-v2)
x86 Icelake-Client-v1 Intel Core Processor (Icelake) [deprecated]
x86 Icelake-Client-v2 Intel Core Processor (Icelake) [no TSX, deprecated]
x86 Icelake-Client-v3 Intel Core Processor (Icelake) [no TSX, XSAVES, deprecated]
x86 Icelake-Server (alias configured by machine type)
x86 Icelake-Server-noTSX (alias of Icelake-Server-v2)
x86 Icelake-Server-v1 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v2 Intel Xeon Processor (Icelake) [no TSX]
x86 Icelake-Server-v3 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v4 Intel Xeon Processor (Icelake)
x86 Icelake-Server-v5 Intel Xeon Processor (Icelake) [XSAVES]
x86 Icelake-Server-v6 Intel Xeon Processor (Icelake) [5-level EPT]
x86 IvyBridge (alias configured by machine type)
x86 IvyBridge-IBRS (alias of IvyBridge-v2)
x86 IvyBridge-v1 Intel Xeon E3-12xx v2 (Ivy Bridge)
x86 IvyBridge-v2 Intel Xeon E3-12xx v2 (Ivy Bridge, IBRS)
x86 KnightsMill (alias configured by machine type)
x86 KnightsMill-v1 Intel Xeon Phi Processor (Knights Mill)
x86 Nehalem (alias configured by machine type)
x86 Nehalem-IBRS (alias of Nehalem-v2)
x86 Nehalem-v1 Intel Core i7 9xx (Nehalem Class Core i7)
x86 Nehalem-v2 Intel Core i7 9xx (Nehalem Core i7, IBRS update)
x86 Opteron_G1 (alias configured by machine type)
x86 Opteron_G1-v1 AMD Opteron 240 (Gen 1 Class Opteron)
x86 Opteron_G2 (alias configured by machine type)
x86 Opteron_G2-v1 AMD Opteron 22xx (Gen 2 Class Opteron)
x86 Opteron_G3 (alias configured by machine type)
x86 Opteron_G3-v1 AMD Opteron 23xx (Gen 3 Class Opteron)
x86 Opteron_G4 (alias configured by machine type)
x86 Opteron_G4-v1 AMD Opteron 62xx class CPU
x86 Opteron_G5 (alias configured by machine type)
x86 Opteron_G5-v1 AMD Opteron 63xx class CPU
x86 Penryn (alias configured by machine type)
x86 Penryn-v1 Intel Core 2 Duo P9xxx (Penryn Class Core 2)
x86 SandyBridge (alias configured by machine type)
x86 SandyBridge-IBRS (alias of SandyBridge-v2)
x86 SandyBridge-v1 Intel Xeon E312xx (Sandy Bridge)
x86 SandyBridge-v2 Intel Xeon E312xx (Sandy Bridge, IBRS update)
x86 Skylake-Client (alias configured by machine type)
x86 Skylake-Client-IBRS (alias of Skylake-Client-v2)
x86 Skylake-Client-noTSX-IBRS (alias of Skylake-Client-v3)
x86 Skylake-Client-v1 Intel Core Processor (Skylake)
x86 Skylake-Client-v2 Intel Core Processor (Skylake, IBRS)
x86 Skylake-Client-v3 Intel Core Processor (Skylake, IBRS, no TSX)
x86 Skylake-Client-v4 Intel Core Processor (Skylake, IBRS, no TSX) [IBRS, XSAVES, no TSX]
x86 Skylake-Server (alias configured by machine type)
x86 Skylake-Server-IBRS (alias of Skylake-Server-v2)
x86 Skylake-Server-noTSX-IBRS (alias of Skylake-Server-v3)
x86 Skylake-Server-v1 Intel Xeon Processor (Skylake)
x86 Skylake-Server-v2 Intel Xeon Processor (Skylake, IBRS)
x86 Skylake-Server-v3 Intel Xeon Processor (Skylake, IBRS, no TSX)
x86 Skylake-Server-v4 Intel Xeon Processor (Skylake, IBRS, no TSX)
x86 Skylake-Server-v5 Intel Xeon Processor (Skylake, IBRS, no TSX) [IBRS, XSAVES, EPT switching, no TSX]
x86 Snowridge (alias configured by machine type)
x86 Snowridge-v1 Intel Atom Processor (SnowRidge)
x86 Snowridge-v2 Intel Atom Processor (Snowridge, no MPX)
x86 Snowridge-v3 Intel Atom Processor (Snowridge, no MPX) [XSAVES, no MPX]
x86 Snowridge-v4 Intel Atom Processor (Snowridge, no MPX) [no split lock detect, no core-capability]
x86 Westmere (alias configured by machine type)
x86 Westmere-IBRS (alias of Westmere-v2)
x86 Westmere-v1 Westmere E56xx/L56xx/X56xx (Nehalem-C)
x86 Westmere-v2 Westmere E56xx/L56xx/X56xx (IBRS update)
x86 athlon (alias configured by machine type)
x86 athlon-v1 QEMU Virtual CPU version 2.5+
x86 core2duo (alias configured by machine type)
x86 core2duo-v1 Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz
x86 coreduo (alias configured by machine type)
x86 coreduo-v1 Genuine Intel(R) CPU T2600 @ 2.16GHz
x86 kvm32 (alias configured by machine type)
x86 kvm32-v1 Common 32-bit KVM processor
x86 kvm64 (alias configured by machine type)
x86 kvm64-v1 Common KVM processor
x86 n270 (alias configured by machine type)
x86 n270-v1 Intel(R) Atom(TM) CPU N270 @ 1.60GHz
x86 pentium (alias configured by machine type)
x86 pentium-v1
x86 pentium2 (alias configured by machine type)
x86 pentium2-v1
x86 pentium3 (alias configured by machine type)
x86 pentium3-v1
x86 phenom (alias configured by machine type)
x86 phenom-v1 AMD Phenom(tm) 9550 Quad-Core Processor
x86 qemu32 (alias configured by machine type)
x86 qemu32-v1 QEMU Virtual CPU version 2.5+
x86 qemu64 (alias configured by machine type)
x86 qemu64-v1 QEMU Virtual CPU version 2.5+
x86 base base CPU model type with no features enabled
x86 host processor with all supported host features
x86 max Enables all features supported by the accelerator in the current host
Recognized CPUID flags:
3dnow 3dnowext 3dnowprefetch abm ace2 ace2-en acpi adx aes amd-no-ssb
amd-ssbd amd-stibp amx-bf16 amx-int8 amx-tile apic arat arch-capabilities
avic avx avx-vnni avx2 avx512-4fmaps avx512-4vnniw avx512-bf16
avx512-fp16 avx512-vp2intersect avx512-vpopcntdq avx512bitalg avx512bw
avx512cd avx512dq avx512er avx512f avx512ifma avx512pf avx512vbmi
avx512vbmi2 avx512vl avx512vnni bmi1 bmi2 bus-lock-detect cid cldemote
clflush clflushopt clwb clzero cmov cmp-legacy core-capability cr8legacy
cx16 cx8 dca de decodeassists ds ds-cpl dtes64 erms est extapic f16c
flushbyasid fma fma4 fpu fsgsbase fsrm full-width-write fxsr fxsr-opt
gfni hle ht hypervisor ia64 ibpb ibrs ibrs-all ibs intel-pt intel-pt-lip
invpcid invtsc kvm-asyncpf kvm-asyncpf-int kvm-hint-dedicated kvm-mmu
kvm-msi-ext-dest-id kvm-nopiodelay kvm-poll-control kvm-pv-eoi kvm-pv-ipi
kvm-pv-sched-yield kvm-pv-tlb-flush kvm-pv-unhalt kvm-steal-time kvmclock
kvmclock kvmclock-stable-bit la57 lahf-lm lbrv lm lwp mca mce md-clear
mds-no misalignsse mmx mmxext monitor movbe movdir64b movdiri mpx msr
mtrr nodeid-msr npt nrip-save nx osvw pae pat pause-filter pbe pcid
pclmulqdq pcommit pdcm pdpe1gb perfctr-core perfctr-nb pfthreshold pge
phe phe-en pks pku pmm pmm-en pn pni popcnt pschange-mc-no pse pse36
rdctl-no rdpid rdrand rdseed rdtscp rsba rtm sep serialize sgx sgx-debug
sgx-exinfo sgx-kss sgx-mode64 sgx-provisionkey sgx-tokenkey sgx1 sgx2
sgxlc sha-ni skinit skip-l1dfl-vmentry smap smep smx spec-ctrl
split-lock-detect ss ssb-no ssbd sse sse2 sse4.1 sse4.2 sse4a ssse3 stibp
svm svm-lock svme-addr-chk syscall taa-no tbm tce tm tm2 topoext tsc
tsc-adjust tsc-deadline tsc-scale tsx-ctrl tsx-ldtrk umip v-vmsave-vmload
vaes vgif virt-ssbd vmcb-clean vme vmx vmx-activity-hlt
vmx-activity-shutdown vmx-activity-wait-sipi vmx-apicv-register
vmx-apicv-vid vmx-apicv-x2apic vmx-apicv-xapic vmx-cr3-load-noexit
vmx-cr3-store-noexit vmx-cr8-load-exit vmx-cr8-store-exit vmx-desc-exit
vmx-encls-exit vmx-entry-ia32e-mode vmx-entry-load-bndcfgs
vmx-entry-load-efer vmx-entry-load-pat vmx-entry-load-perf-global-ctrl
vmx-entry-load-pkrs vmx-entry-load-rtit-ctl vmx-entry-noload-debugctl
vmx-ept vmx-ept-1gb vmx-ept-2mb vmx-ept-advanced-exitinfo
vmx-ept-execonly vmx-eptad vmx-eptp-switching vmx-exit-ack-intr
vmx-exit-clear-bndcfgs vmx-exit-clear-rtit-ctl vmx-exit-load-efer
vmx-exit-load-pat vmx-exit-load-perf-global-ctrl vmx-exit-load-pkrs
vmx-exit-nosave-debugctl vmx-exit-save-efer vmx-exit-save-pat
vmx-exit-save-preemption-timer vmx-flexpriority vmx-hlt-exit vmx-ins-outs
vmx-intr-exit vmx-invept vmx-invept-all-context vmx-invept-single-context
vmx-invept-single-context vmx-invept-single-context-noglobals
vmx-invlpg-exit vmx-invpcid-exit vmx-invvpid vmx-invvpid-all-context
vmx-invvpid-single-addr vmx-io-bitmap vmx-io-exit vmx-monitor-exit
vmx-movdr-exit vmx-msr-bitmap vmx-mtf vmx-mwait-exit vmx-nmi-exit
vmx-page-walk-4 vmx-page-walk-5 vmx-pause-exit vmx-ple vmx-pml
vmx-posted-intr vmx-preemption-timer vmx-rdpmc-exit vmx-rdrand-exit
vmx-rdseed-exit vmx-rdtsc-exit vmx-rdtscp-exit vmx-secondary-ctls
vmx-shadow-vmcs vmx-store-lma vmx-true-ctls vmx-tsc-offset
vmx-tsc-scaling vmx-unrestricted-guest vmx-vintr-pending vmx-vmfunc
vmx-vmwrite-vmexit-fields vmx-vnmi vmx-vnmi-pending vmx-vpid
vmx-wbinvd-exit vmx-xsaves vmx-zero-len-inject vpclmulqdq waitpkg
wbnoinvd wdt x2apic xcrypt xcrypt-en xfd xgetbv1 xop xsave xsavec
xsaveerptr xsaveopt xsaves xstore xstore-en xtpr
===== QEMU (x86_64) でエミュレーション可能な NIC モデル一覧 =====
$qemu-system-x86_64-net nic,model=?
qemu: Supported NIC models: e1000,e1000-82544gc,e1000-82545em,e1000e,i82550,i82551,i82557a,i82557b,i82557c,i82558a,i82558b,i82559a,i82559b,i82559c,i82559er,i82562,i82801,ne2k_pci,pcnet,pvrdma,rocker,rtl8139,virtio-net-pci,vmxnet3
$qemu-system-i386-net nic,model=?
qemu: Supported NIC models: e1000,e1000-82544gc,e1000-82545em,e1000e,i82550,i82551,i82557a,i82557b,i82557c,i82558a,i82558b,i82559a,i82559b,i82559c,i82559er,i82562,i82801,ne2k_pci,pcnet,pvrdma,rocker,rtl8139,virtio-net-pci,vmxnet3
===== QEMU で Pidora, OpenWRT, DD-WRT を動かす =====
$ sudo dnf install qemu-system-arm qemu-system-mips qemu-kvm-tools
===== トラブルシューティング =====
==== 仮想マシンが勝手に「一時停止中」になる ====
仮想マシンが勝手に「一時停止中」になる場合は物理ディスク容量を確認する。
$ sudo virsh list --all
Id Name State
--------------------------------------
1 black-dc 一時停止中
2 black-ns 一時停止中
3 fedora-vps001 一時停止中
- edubuntu14-ltsp シャットオフ
- windows-mps シャットオフ
物理ディスク容量の確認(/ の使用%が 100%)である。
$ df -BG -T
ファイルシス タイプ 1G-ブロック 使用 使用可 使用% マウント位置
devtmpfs devtmpfs 3G 0G 3G 0% /dev
tmpfs tmpfs 3G 0G 3G 0% /dev/shm
tmpfs tmpfs 3G 1G 3G 1% /run
tmpfs tmpfs 3G 0G 3G 0% /sys/fs/cgroup
/dev/sda2 btrfs 1022G 1022G 0G 100% /
tmpfs tmpfs 3G 1G 3G 1% /tmp
/dev/sda1 ext4 1G 1G 1G 21% /boot
tmpfs tmpfs 1G 0G 1G 0% /run/user/1000
物理ディスクを大容量な物に交換するか容量を拡張する。\\
[[linux:commands:disk_manage#linux-swap_の移動|ディスク管理関連 - linux-swap の移動]]\\
[[linux:commands:disk_manage#btrfs_の拡張|ディスク管理関連 - btrfs の拡張]]\\
==== 仮想マシンを定義する際に「サポートされない設定: 予期しない機能 'vmport'」が発生する ====
新しいKVMホストから古いKVMホストに仮想マシンを移動した時に以下のエラーが発生する。
$ ssh root@green-sv virsh define /etc/libvirt/qemu/black-vps001.xml
エラー: /etc/libvirt/qemu/black-vps001.xml からのドメイン定義に失敗しました
エラー: サポートされない設定: 予期しない機能 'vmport'
の を に修正する。\\
変更前\\
変更後\\
==== 仮想マシンを定義する際に「XML エラー: ファイル '/dev/urandom' がサポートされた乱数ソースではありません」が発生する ====
新しいKVMホストから古いKVMホストに仮想マシンを移動した時に以下のエラーが発生する。
$ ssh root@green-sv virsh define /etc/libvirt/qemu/black-vps001.xml
エラー: /etc/libvirt/qemu/black-vps001.xml からのドメイン定義に失敗しました
エラー: XML エラー: ファイル '/dev/urandom' がサポートされた乱数ソースではありません
の の部分を丸ごと削除する。\\
/dev/urandom
==== 仮想マシンを実行する際に「内部エラー: モニターに接続中にプロセスが終了しました」が発生する ====
新しいKVMホストから古いKVMホストに仮想マシンを移動した時に以下のエラーが発生する。
$ ssh root@green-sv virsh start black-vps001
エラー: ドメイン black-vps001 の起動に失敗しました
エラー: 内部エラー: モニターに接続中にプロセスが終了しました: 2019-01-21T23:12:44.253599Z qemu-system-x86_64: -ms: Unsupported machine type
Use -machine help to list supported machines!
の を に修正する。\\
修正前\\
hvm
修正後\\
hvm
==== 仮想マシンマネージャーの接続障害が発生する場合 ====
以下のエラーが発生する場合はポリシーファイルを修正する。\\
{{:linux:virt-manager_error_001.png?300|仮想マシンマネージャーの接続障害}}
Unable to open a connection to the libvirt management daemon.
Libvirt URI is: qemu:///system
Verify that:
- The 'libvirtd' daemon has been started
詳細
Unable to open a connection to the libvirt management daemon.
Libvirt URI is: qemu:///system
Verify that:
- The 'libvirtd' daemon has been started
authentication failed: authentication failed
Traceback (most recent call last):
File "/usr/share/virt-manager/virtManager/connection.py", line 1146, in _open_thread
self.vmm = self._try_open()
File "/usr/share/virt-manager/virtManager/connection.py", line 1130, in _try_open
flags)
File "/usr/lib64/python2.6/site-packages/libvirt.py", line 102, in openAuth
if ret is None:raise libvirtError('virConnectOpenAuth() failed')
libvirtError: authentication failed: authentication failed
ポリシーファイルの修正
$ sudo vi /usr/share/polkit-1/actions/org.libvirt.unix.policy
...
...
auth_adminauth_admin
ポリシーファイルを修正すると認証を行うことでホストに接続できるようになる。\\
{{:linux:virt-manager_error_002.png?300|}}
===== 参考文献 =====
[[https://bugzilla.redhat.com/show_bug.cgi?id=579579|Bug 579579 – virt-manager: provide better feedback if we can determine why policykit failed]]\\
[[https://yuu.nkjmlab.org/diary/20111204.html|KVM仮想マシンの名前変更と移動 - yuu_nkjm blog(2011-12-04)]]\\
[[http://www.postcard.st/nosuz/tech/2011/09/10-14|qcow2ファイルをマウント | やってみようよ!]]\\
[[http://www.nminoru.jp/~nminoru/programming/sparse_file.html|Linux で疎なファイル(sparse file)を使う]]\\
[[https://kernhack.hatenablog.com/entry/2014/06/15/233206|Linux:sparse fileのファイルサイズと実際に使っている領域の大きさはどう調べるのか。 - φ(・・*)ゞ ウーン カーネルとか弄ったりのメモ]]\\
[[https://techpiezo.com/tech-insights/raw-vs-qcow2-disk-images-in-qemu-kvm/|Raw vs Qcow2 Disk Images in QEMU/KVM - TechPiezo]]\\
[[https://ja.linux-console.net/?p=1633#gsc.tab=0|14Linuxの「sort」コマンドの便利な例-パート1]]\\
[[arc>QEMU#.E7.89.B9.E5.AE.9A.E3.81.AE_Windows_.E3.81.AE.E3.82.B2.E3.83.BC.E3.83.A0.E3.82.84.E3.82.A2.E3.83.97.E3.83.AA.E3.82.B1.E3.83.BC.E3.82.B7.E3.83.A7.E3.83.B3.E3.81.A7.E3.82.AF.E3.83.A9.E3.83.83.E3.82.B7.E3.83.A5.E3.82.84.E3.83.96.E3.83.AB.E3.82.B9.E3.82.AF.E3.83.AA.E3.83.BC.E3.83.B3.E3.81.8C.E7.99.BA.E7.94.9F.E3.81.99.E3.82.8B|特定の Windows のゲームやアプリケーションでクラッシュやブルスクリーンが発生する - QEMU - ArchWiki]]\\
[[https://ahelpme.com/howto/qemu-full-virtualization-cpu-emulations-enable-disable-cpu-flags-instruction-sets/|QEMU full virtualization – CPU emulations (enable/disable CPU flags/instruction sets) of QEMU 2.0.0 | Any IT here? Help Me!]]\\
[[https://forums.fedoraforum.org/showthread.php?330586-Fedora-38-change-Systems-with-Gnome-suspend-after-15-minutes-even-when-plugged-in|Fedora 38 change: Systems with Gnome suspend after 15 minutes even when plugged in]]\\
==== 付録 ====
[[tw>tomoyan596sp/status/1465803218206617605|KVMの中で飼いならします🤤]]\\
[[tw>tomoyan596sp/status/1466251725782667264|結論: どちらもユースケースによりけりで利点がある🤔スパースにすると仮想ディスクのトリムの必要が無くなるけど、qemu-imgの機能でやった方がキメ細かい機能で便利な気がしますし、仮想ディスクはraw形式にしないと大幅パフォーマンス向上はしないから利便性重視にしよう🤤]]\\
[[tw>tomoyan596sp/status/1466256449131012103|lsコマンドでは見ている構造体メンバーが実装てきに違うからスパースファイルの実用量が分からない😅諦めてduで見ましょう🤤]]\\
[[tw>tomoyan596sp/status/1469001994740584450|findコマンドでスパースファイルを見分けられますけど、-printfオプションの解説ってなにか良いの存在していないかなぁ🤔# find . -type f -printf "%S\t%p\n" | gawk '$1 < 1.0 {print}']]\\
[[tw>tomoyan596sp/status/1637179786060763136|SSE4.1もAVX2もエミュレーション出来るのかなぁ🤔Virtual ...🍟🤤]]\\
[[tw>tomoyan596sp/status/1698502633449799761|節電対策でノートPCにKVM仮想化環境作ってリモートアクセスしてたら、節電のためにサスペンドもしてくれて、仮想マシンに繋がらなくなりました🤣 地球環境に優しすぎですね🌍🤗 サスペンドは無効にしよぅ🫠]]\\
※以下の手順を推進するものではありません。この手順を実行したことによって起こる問題については、当方は責任は負い兼ねます🤔\\
[[tw>tomoyan596sp/status/1704614084258460017|OSX-KVMは、Virtual Hackintoshのシステムを作成する手順を文書化しているだけのプロジェクトです🤔何も問題はないですね😉]]\\