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xen-devel
Re: [Xen-devel] disk throttling
> Has the plan of turning Xen into a next-gen BIOS been scrapped? It seems
> Xen is becoming more and more dependent on having a specific version of
> Linux as dom0?
As you know, Xen itself isn't dependent on anything much -- but a
machine with just Xen and no domain 0 doesn't actually do anything.
Any domain 0 which can provide the requisite functionality
(control tools and backends mainly) is fine -- we're currently using
linux 2.6.9 for this as it seems the logical choice (lots of
functionality, mature code base, widespread user knowledge).
If someone wants to write a 'custom' OS for dom0 to address some
perceived overhead, then they should feel free to. It probably
could be quite a lot smaller than linux.
Even in this case, however, we're extremely likely to retain linux
2.6.x as a recommended backend platform due to the wide-ranging
hardware support. The 1.2-style notion of writing new drivers to run
within Xen is effectively untenable unless folks are prepared to spend
a hell of a lot of time writing + testing driver code...
cheers,
S.
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