= Configuration nested virtualization in virt-manager
[[configuration-nested-virtualization-in-virt-manager]]

Configure your VM to use nested virtualization:

. Open *virt-manager*, double-click the VM, and click the *Show virtual hardware details* icon. 
. Click *CPUs* in the side menu. In the *Configuration* section, there are two options - either type
`host-passthrough` in the *Model:* field or select *Copy host CPU
configuration* check box (that fills the `host-model` value in the Model
field). 
+
[NOTE]
Using host-passthrough is not recommended for general usage and just for nested virtualization purposes.
. Click Apply.