Run Linux and Win concurrently!

[Michael O'Donnell]

>A VM does not need to emulate the machine instructions.

Right - many of the instructions in the kernel image would
be directly executed in an unprivileged context.  The hairy
parts are exception processing, privileged memory references
and I/O accesses, privileged instructions, etc, etc - those
will all trigger traps into the VM kernel where they'll need
to be emulated; not quite straightforward on a CPU that was
not specifically designed for such gymnastics.  And interrupt
handling is a challenge, too - if your service routines aren't
privileged you'll end up incurring emulation traps while servicing
interrupts; workable, but slow...

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