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Xen Virtualization by Prabhakar Chaganti

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Xen Terminologies

Following are the definitions for some of the terms used when dealing with Xen technology:

  • VM: A virtual machine is the virtualized environment that runs an operating system so that the user can run their applications on the operating system.
  • VMM: The software that provides the ability to run virtual machines.
  • Domain: The term used by Xen to refer to a virtual machine instance.
  • dom0: The primary domain in a Xen system. This is the operating system that runs Xen itself.
  • domU: All the other domains in a Xen system.
  • Host: The system that provides the environment for running virtual machines.
  • Guest: The virtual machine instance that runs on a host system.
  • PVM: Paravirtualized Virtual machine where the Xen domains can only run modified operating ...

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