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Nested KVM
2015/06/02 |
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Configure nested KVM. It's possible to install KVM and create virtual machines as nested KVM on KVM host.
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| [1] | Enable the setting for Nested KVM. |
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[root@dlp ~]#
vi /etc/modprobe.d/kvm-nested.conf # create new
options kvm_intel nested=1
modprobe -r kvm_intel # unload [root@dlp ~]# modprobe kvm_intel # reload again [root@dlp ~]# cat /sys/module/kvm_intel/parameters/nested Y # just enabled |
| [2] | Make sure the CPU model on your computer. |
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[root@dlp ~]# virsh capabilities | egrep "/model|/vendor" <model>SandyBridge</model> # CPU model <vendor>Intel</vendor> # CPU vendor <model>none</model> <model>dac</model> |
| [3] | Edit the configuration of a virtual machine you'd like to set nested like follows. It's OK to configure nested KVM and you can create virtual machines on the virtual machine nested. |
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# edit a virtual machine setting [root@dlp ~]# virsh edit fedora22 # add following lines
<cpu mode='custom' match='exact'>
# CPU model <model fallback='allow'>SandyBridge</model> # CPU vendor <vendor>Intel</vendor> <feature policy='require' name='vmx'/> </cpu> |