[Xen-devel] Re: Merge Xen (the hypervisor) into Linux

[David Miller <davem@xxxxxxxxxxxxx>]

From: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Date: Tue, 2 Jun 2009 21:49:58 -0700 (PDT)

> A hypervisor is not an operating system.

This is a pretty bogus statement if you ask me.

A hypervisor a software system that provides seperation between
protection realms.

It also handles exceptions and "system calls" on behalf of the other
protection realms.

I personally don't see the difference at all.  And since many
hypervisors even do cpu scheduling, the fundamental differences
converge to almost nothing.

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