Jed Davis <jdev@panix.com> writes:

> _The UVM Virtual Memory System_ (the overview paper, that is) mentions
> that a pager implementation can do its own page allocation, for
> e.g. mapping a ROM into a process's address space.

Except that vm_pages are supposed to have a "physical" address, and
foreign pages don't.  I suppose it's too much to hope that some other
port has a strange MD widget that can be mapped somehow but is outside
of the paddr_t space?  Or any kind of precedent at all?

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