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Nested Virtualization

asked 2017-06-04 15:31:52 -0600

felix001 gravatar image

I've installed OpenStack Ocata on 3 x VMware instances. But it got me wondering if the playbooks autodetect if the host is a virtual instance and would configure the necessary KVM on qemu settings.


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answered 2017-06-05 04:27:06 -0600

Vinoth gravatar image


Determine whether your compute node supports hardware acceleration for virtual machines:

$ egrep -c '(vmx|svm)' /proc/cpuinfo

If this command returns a value of one or greater, your compute node supports hardware acceleration which typically requires no additional configuration.

If this command returns a value of zero, your compute node does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM.

Edit the [libvirt] section in the /etc/nova/nova-compute.conf file as follows:


virt_type = qemu

Another helpful link: (Guide for running OpenStack on AWS – A perfect way to do R&D on Openstack)

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Asked: 2017-06-04 15:31:52 -0600

Seen: 376 times

Last updated: Jun 05 '17