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Xen 3.0 Virtualization User Guide
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1. Introduction

Xen is an open-source para-virtualizing virtual machine monitor (VMM), or ``hypervisor'', for the x86 processor architecture. Xen can securely execute multiple virtual machines on a single physical system with close-to-native performance. Xen facilitates enterprise-grade functionality, including:

  • Virtual machines with performance close to native hardware.
  • Live migration of running virtual machines between physical hosts.
  • Up to 32 virtual CPUs per guest virtual machine, with VCPU hotplug.
  • x86/32, x86/32 with PAE, and x86/64 platform support.
  • Intel Virtualization Technology (VT-x) for unmodified guest operating systems (including Microsoft Windows).
  • Excellent hardware support (supports almost all Linux device drivers).

Xen 3.0 Virtualization User Guide
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  Published under the terms of the GNU General Public License Design by Interspire