CentOS Stream 8
Sponsored Link

KVM : Nested KVM
2021/03/10
 
Configure Nested KVM. It's possible to install KVM Hypervisor and Create virtual machines as nested KVM on KVM host.
[1] Enable Nested KVM setting.
# confirm current setting

[root@dlp ~]#
cat /sys/module/kvm_intel/parameters/nested

0    
# disabled

[root@dlp ~]#
vi /etc/modprobe.d/kvm.conf
# uncomment either of the line

# for Intel CPU, select [kvm_intel], for AMD CPU, select [kvm_amd]

options kvm_intel nested=1
#options kvm_amd nested=1
# unload

[root@dlp ~]#
modprobe -r kvm_intel
# reload

[root@dlp ~]#
modprobe kvm_intel
[root@dlp ~]#
cat /sys/module/kvm_intel/parameters/nested

1    
# just enabled

[2] 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.
Refer to the details of CPU mode ⇒ https://libvirt.org/formatdomain.html#elementsCPU
# edit the settings of a VM

[root@dlp ~]#
virsh edit centos-st8
# change cpu mode like follows

# if not go well, specify [host-passthrough]

<cpu mode='
host-model
'>
Matched Content