Will developments in hardware virtualization make paravirtualization unnecessary?
Margaret Lewis: I don’t necessarily know that paravirtualization is going to discontinue existence. I think there’s going to be many different ways to achieve virtualization, just like there are different operating systems (OSes). Paravirtualization has an advantage, letting virtualization software not have to handle some of [the compatibility issues] with some hardware device drivers. The bad thing about paravirtualization is you have to be able to recompile your OS. So, you’ll never be able to run Windows in a paravirtualized Linux world, but you could use older versions and newer versions of Red Hat on the same machine. It’s going to be interesting to see how the software vendors are going to work the underlying extensions that we and Intel have provided and work into their software. It’s an evolutionary path. What’s coming the next phase of hardware virtualization? Tim Mueting: There will be more improvements in I/O in virtualization and graphics virtualization. As client-side virt
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