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KVM

tagline: From openSUSE

KVM stands for Kernel Virtual Machine

For a detailed installation manual please follow the KVM section on our Documentation server.

KVM can only run para-virtualized machines. The quick way to know if your CPU can handle the para-virtualized guests

egrep --color '(vmx|svm)' /proc/cpuinfo

should return for an Intel CPU:

egrep --color '(vmx|svm)' /proc/cpuinfo flags  : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 x2apic popcnt aes xsave avx lahf_lm ida arat epb xsaveopt pln pts dts tpr_shadow vnmi flexpriority ept vpid

and for an AMD CPU:

flags  : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt rdtscp lm 3dnowext 3dnow extd_apicid pni cx16 lahf_lm cmp_legacy svm extapic cr8_legacy


Tsu2 08:46, 1 May 2013 (MDT)
Although the content above is accurate for KVM specifically, for awhile now KVM has been integrated into QEMU so commands are now typically "qemu-kvm"

With this integration with QEMU, it should be pointed out that although qemu-kvm still requires paravirtualization, QEMU overall supports full emulation and is not restricted to the limits of paravirtualization. See the current documentation for full explanation and invocation.