THEY MAKE COMPUTERS OUT OF SOFTWARE, NOW

Systems problems are traditionally solved in either hardware or the operating system. Hardware is too expensive to experiment with, while OS-based solutions suffer from the chicken-and-egg problem of moving the world to your improved OS. The virtual machine monitor (VMM) presents a sweet spot between these two extremes. VMM-based solutions can solve a problem in software, once, and yet solve it for all popular operating systems and applications.

I'll be using a new, VMM-based tool called VProbes both to demonstrate the scope of what the VMM can intercept, and and as an example of a feature that would be difficult to implement in other layers. VProbes provides a globally coherent, safe, programmable, interactive window into a running machine, from its CPUs to memory to peripherals.

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