August 2016
Intermediate to advanced
468 pages
9h 53m
English
Content preview from Mastering KVM Virtualization
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How to enable nested KVM?
By default, nested KVM is disabled.
Open /etc/modprobe.d/kvm.conf as root user using a text editor like vim. If the file does not exist create /etc/modprobe.d/kvm.conf:
- #Uncomment
kvm_intelline if your CPU make is Intel - #options
kvm_intel nested=1 - #Uncomment
kvm_intelline if your CPU make is AMD - #options
kvm_amd nested=1
Save the file and reboot the system. Once the system reboots verify nested by checking.
# cat /sys/module/kvm_intel/parameters/nested Y
For AMD, the file to check is /sys/module/kvm_intel/parameters/nested:
Fig - 1
After verifying nested status, change the CPU model of the VM to match host's CPU; that is, enable ...
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