My FreeBSD-current/Xen install notes

[Peter Jeremy]

On 2009-May-20 08:30:09 +0800, Adrian Chadd <adrian at freebsd.org> wrote:
>Xen also lets you write "other" OSes without needing to care about the
>hardware. One of my friends bootstrapped a toy OS of his inside Xen.
>He can then run it on any and all Xen boxes, unmodified, regardless of
>the underlying hardware. That really hasn't been exploited to its full
>potential though.

This isn't a particularly new idea: The 'CMS' part of IBM VM/CMS was a
hypervisor-aware OS that couldn't run on bare metal.

Relying on the hypervisor for some "traditional" OS services offers
plenty of scope for interesting developments.  One area would be in
University Operating Systems courses - it would again be possible to
offer practical coursework on operating systems that are comprehendable
in their entirety (ala V6 and Minix).

-- 
Peter Jeremy
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