Hi Mike, First, thanks for vmm!
One practical question: Did you think about PCI passthrough? If so, what's your perspective on it? There were no previous mentions of it on misc@ so here it is. Also I have no idea what degree of complexity this is. E.g., a VM guest can get exclusive control of a PCI device to lower PCI device access latency (by cutting out the hypervisor/host OS as active participant in the VM-PCI device interaction) or to enable the VM to use a PCI device at all for the case that the host OS lacks support for the device and hence can't virtualize it. I guess PCI passthrough also could work as a robustness or security measure where you have a VM drive a device so the host OS would be less likely to crash and burn for any reason that pertains to touching that device. Thanks, Joseph