Re: [Xen-devel] Microsoft plans 'hypervisor' for Longhorn

["M.A. Williamson" <maw48@xxxxxxxxx>]

> Article mentions Xen as Microsoft's competition.
The MS hypervisor is a very interesting beast from our PoV: * drivers run 
in a dom0-like "parent" partition (cut down Longhorn) * "child" partitions 
devices are plumbed through this * VMM-aware OSes can use APIs called 
"enlightenments" (don't you usually achieve enlightenment through 
practising Zen? :-D) to avoid full-virt penalties
Their roadmap includes live migration and suspend-resume, USB 
virtualisation, etc.
It'll be interesting to see if they require hypervisor-enabled hardware or 
if they pull in the binary scanning / rewriting from VirtualPC. It'll also 
be interesting to see just how open their "open" device / VMM interfaces 
are: in particular, can Linux support them as a guest, can Xen fake them 
out to boost performance when running Longhorn guests?
Things are evidently heating up in virtualisation land. It'll be 
interesting to see what VMWare's response to this is.
Cheers,
Mark

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