How do I find out if my system support Intel - VT / AMD -V hardware virtualization extensions for host CPU using the command line options?

Both Intel and AMD CPU support virtualization technology which allows multiple operating systems to run simultaneously on an x86 computer in a safe and efficient manner using hardware virtualization. XEN and other virtualization software can use Intel / AMD hardware virtualization for full virtualization. In other words with Intel VT, or AMD-V you can run an unmodified guest OS, like MS-Windows without any problem.

Use the following command to verify that if hardware virtualization extensions is enabled or not in your BIOS.

Verify Intel VT or AMD V CPU Virtualization Extensions

Type the following command as root to verify that host cpu has support for Intel VT or AMD - V technology, enter: