To find out if your Linux system’s CPU supports Intel VT/AMD-V virtualization for KVM, you can use the following commands:
- Check if your CPU supports virtualization:
egrep -c '(vmx|svm)' /proc/cpuinfo
If the output is greater than zero, it means that your CPU supports virtualization.
- Check if the virtualization extensions are enabled in the BIOS:
Reboot the system and enter the BIOS setup utility. Look for an option to enable virtualization extensions. The option may be called “Intel VT-x”, “Intel Virtualization Technology”, “AMD-V”, or something similar. Enable the option if it is not already enabled, then save and exit the BIOS setup utility.
- Verify that virtualization extensions are enabled:
sudo kvm-ok
This command will check if the necessary kernel modules are loaded and if the virtualization extensions are enabled in the BIOS. If everything is configured correctly, the output will be:
INFO: /dev/kvm exists
KVM acceleration can be used
If the output is different or contains errors, it means that there may be a problem with the configuration, the CPU may not support virtualization, or the virtualization extensions may not be enabled in the BIOS.
By following these steps, you can determine if your CPU supports Intel VT/AMD-V virtualization for KVM and configure your system accordingly.