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Author neoX Posted on ApJanuCategories console, HowTo, qemu Tags full virtualization, qemu, qemu-system-x86_64 Will start up the virtual machine with 2 processors and you can hot add a cpu up to 8 total in any time you want with the management console listening on 127.0.0.1:5801. monitor telnet:127.0.0.1:5801,server,nowait -writeconfig /opt/qemu/config/srv_ net nic,model=virtio,macaddr=$(/dev/tap$(/dev/tap$(/dev/tap$(/dev/tap$(< /sys/class/net/macvtap0/ifindex) \ cdrom /mnt/storage/images/install-amd64-minimal-20140327.iso -boot d \ drive file=/mnt/storage/qemu/roofs/srv_virt.qcow2,index=0,cache=none,aio=threads,if=virtio \ The host server will expose different instruction set to the guest server (the emulated CPU), so when you choose your host to emulate for example “qemu64” with: Pfthreshold pause_filter decodeassists flushbyasid vmcb_clean tsc_scale nrip_save svm_lock lbrv npt Kvm_pv_unhalt kvm_pv_eoi kvm_steal_time kvm_asyncpf kvmclock kvm_mmu kvm_nopiodelay kvmclock Pmm-en pmm phe-en phe ace2-en ace2 xcrypt-en xcrypt xstore-en xstore Perfctr_nb perfctr_core topoext tbm nodeid_msr tce fma4 lwp wdt skinit xop ibs osvw 3dnowprefetch misalignsse sse4a abm cr8legacy extapic svm cmp_legacy lahf_lm
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Smap adx rdseed rtm invpcid erms bmi2 smep avx2 hle bmi1 fsgsbaseģdnow 3dnowext lm|i64 rdtscp pdpe1gb fxsr_opt|ffxsr mmxext nx|xd syscall Hypervisor rdrand f16c avx osxsave xsave aes tsc-deadline popcnt movbe x2apic sse4.2|sse4_2 sse4.1|sse4_1 dca pcid pdcm xtpr cx16 fma cid ssse3 tm2 est smx vmx ds_cpl monitor dtes64 pclmulqdq|pclmuldq pni|sse3 Pbe ia64 tm ht ss sse2 sse fxsr mmx acpi ds clflush pn pse36 pat cmov mca pge mtrr sep apic cx8 mce pae msr tsc pse de vme fpu X86 host KVM processor with all supported host features (only available in KVM mode) X86 Opteron_G5 AMD Opteron 63xx class CPU X86 Opteron_G4 AMD Opteron 62xx class CPU X86 Opteron_G3 AMD Opteron 23xx (Gen 3 Class Opteron) X86 Opteron_G2 AMD Opteron 22xx (Gen 2 Class Opteron) X86 Opteron_G1 AMD Opteron 240 (Gen 1 Class Opteron) X86 Haswell Intel Core Processor (Haswell) X86 SandyBridge Intel Xeon E312xx (Sandy Bridge)
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X86 Westmere Westmere E56xx/L56xx/X56xx (Nehalem-C) X86 Nehalem Intel Core i7 9xx (Nehalem Class Core i7) X86 Penryn Intel Core 2 Duo P9xxx (Penryn Class Core 2) X86 Conroe Intel Celeron_4x0 (Conroe/Merom Class Core 2) X86 athlon QEMU Virtual CPU version 2.0.0 X86 coreduo Genuine Intel(R) CPU T2600 2.16GHz X86 qemu32 QEMU Virtual CPU version 2.0.0 X86 core2duo Intel(R) Core(TM)2 Duo CPU T7700 2.40GHz X86 phenom AMD Phenom(tm) 9550 Quad-Core Processor X86 qemu64 QEMU Virtual CPU version 2.0.0 You can see what options are available for host emulation ~$ qemu-system-x86_64 -cpu help Here are some important tips for the guest CPU to consider when using QEMU directly (without any virtualization manager like virt-manager, libvirt and so on). You can use QEMU with a nearly native full virtualization. Howto do QEMU full virtualization with bridged networking.Howto do QEMU full virtualization with MacVTap networking.
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After the two QEMU full virtualization howtos