Processor support

From KVM

Information about what cpu supports Hardware virtualization.


VT-x, shows in /proc/cpuinfo as the vmx flag. (grep vmx /proc/cpuinfo)

AKA Vanderpool

See Wikipedia's article on x86 virtualization, for a list of processors that include it.


AMD-V, shows in /proc/cpuinfo as the svm flag. (grep svm /proc/cpuinfo)

AKA Pacifica, AKA AMD Virtualization


Virtualization support for ARM was initially added to ARMv7-A processors starting with Cortex-A15 and including Cortex-A7 and Cortex-A17.

ARMv8-A processors include support for virtualization.

Refer to for more information.


KVM for PowerPC supports selected embedded cores. It also supports all 64-bit server / desktop class CPUs like the G5, POWER4 and above, Cell, 970MP, and 32-bit desktop class CPUs like the G3, G4, e300, etc.

BookE 440 YES
BookE 500 YES
Book3S PPC64 YES
Book3S PPC32 YES


Every S390 that has 64-bit support can use KVM. So if your mainframe is at least a z9, you're good!