The first generation of Intel Virtualization Technology (VT) for IA-32 and Itanium processors provides hardware support that simplifies processor virtualization, enabling reductions in Virtual Machine Monitor (VMM) software size and complexity. Resulting VMMs can support a wider range of legacy and future Operating Systems (OSs) on the same physical platform while maintaining high performance. In this paper, the authors provide details of the virtualization challenges posed by IA-32 and Itanium processors; present an overview and furnish details of VT-x (Intel Virtualization Technology for the IA-32 architecture) and VT-i (Intel Virtualization Technology for the Itanium architecture); show how VT-x and VT-i address virtualization challenges; and finally provide examples of usage of the VT-x and VT-i architecture.
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