Validate Host System

The libvirt package provides a validation utility that checks whether a system can function correctly as a virtualization host. The utility can check for several virtualization capabilities, but KVM functionality is covered by testing the qemu virtualization type.

Run the virt-host-validate qemu command to validate the host system:
```
sudo virt-host-validate qemu
```
If all checks return a PASS value, the system can host guest VMs. If any of the tests fail, a reason is provided and information is displayed on how to resolve the issue, if such an option is available.
Note:

If the following message is displayed, the system isn't capable of functioning as a KVM host:
```
QEMU: Checking for hardware virtualization: FAIL (Only emulated CPUs are
      available, performance will be significantly limited)
```
If you try to create or start a VM on a host where this message is displayed, the action is likely to fail.