VMware Paravirt-ops Stirs Some Controversy:
Paravirtualization is a software technique developed by XenSource and implemented so far by Novell, Red Hat, and other open-source Linux OS providers. It's designed to improve the performance of virtual environments by recompiling parts of the guest operating system to create shortcuts that eliminate otherwise complex translations between OS and underlying hardware. (See Insider Eyes Virtual Desktops.)
Paravirt-ops is an interface VMware claims enables "transparent paravirtualization" by streamlining virtualization processes specifically for the Linux kernel. XenSource, VMware, IBM, and RedHat got paravirt-ops included in the latest release of the Linux kernel, version 2.6.20, which is only just starting to become available for developers.
So far, VMware is the first of the paravirt-ops proponents to offer support for the interface in a commercial product, though XenSource is said to be close to providing one, too.
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