Linux Find Out If CPU Support Intel VT/AMD-V Virtualization For KVM

To find out if a CPU on a Linux system supports Intel VT (Virtualization Technology) or AMD-V (AMD Virtualization) for use with KVM (Kernel-based Virtual Machine), you can use the following methods:

1. Check the CPU's documentation: Consult the documentation or specification for your CPU to see if it supports Intel VT or AMD-V. This information should be available from the manufacturer's website or in the documentation that came with the CPU.

2. Use the lscpu command: The lscpu command displays information about the CPU and its capabilities. To see if the CPU supports Intel VT or AMD-V, you can run the following command:

lscpu | grep -i virtualization

If the output includes VT-x or AMD-V, the CPU supports virtualization.

3. Use the kvm-ok command: The kvm-ok command checks if the current system is capable of running KVM. To use this command, you will need to install the cpu-checker package, which can be done with the following command:

sudo apt install cpu-checker

Then, you can run the kvm-ok command like this:

kvm-ok

If the output indicates that the system is ready for KVM, the CPU supports virtualization.

Note that support for virtualization is not the only requirement for using KVM. You will also need to ensure that your system has a compatible kernel and that KVM is installed and configured correctly.