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I want to understand how to use KVM in CenTOS. At the moment, all I have is a VMWare ESX 5.x server to use. Is there a way to get KVM working on a system that is running on VMWare? Essentially, a nested install?

This will not be used for production purposes, only testing/learning.

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    Yes it is possible, you have to enable nested virtualisation - virtuallyghetto.com/2012/08/… Jan 28, 2013 at 0:45
  • @Urlich: Please convert the comment to an answer.
    – pilona
    Oct 26, 2013 at 17:54
  • @Mike B: "install" is misleading most of the time. KVM is just a facility offered by the kernel (accessed through the character device at /dev/kvm). CentOS should have the kernel module in the kernel package by default (though it could also be compiled-in). What you install is the hypervisor that makes use of KVM (e.g., QEMU).
    – pilona
    Oct 26, 2013 at 18:10

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To allow KVM to function inside a VM do the following;

In esxi 5.5 add the following line to your VM to enable nested virtualization;

hypervisor.cpuid.v0 = "FALSE"

Steps: go to "edit settings" ---->"options"---->"Advanced"---> "General"--->"Configuration Parameters"---->"configuration button, select add row and add the new parameter. hypervisor.cpuid.v0 = "FALSE"

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  • Any chance that something similar could be done on VMware Workstation (12 pro) as well ?
    – bdutta74
    Sep 10, 2017 at 20:17

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