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To: Pat Bozeman <peb@george.lbl.gov>
cc: freebsd-hackers@freebsd.org
Subject: Re: Virtual address question for VM guru's 
References: <Pine.SOL.3.95.970603211241.23254C-100000@george.lbl.gov>
In-Reply-To: <Pine.SOL.3.95.970603211241.23254C-100000@george.lbl.gov>
    from Pat Bozeman at "Wed, 04 Jun 1997 04:36:38 +0000"
Date: Wed, 04 Jun 1997 17:45:31 +1000
From: Stephen McKay <syssgm@dtir.qld.gov.au>
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On Wednesday, 4th June 1997, Pat Bozeman wrote:

>What I would like to do is map specific process address ranges into the
>kernel's virtual address space and then keep track of the new kernel
>virtual address which should point to the correct physical address
>regardless of which process is active.

Have a look at /sys/kern/sys_pipe.c for some hints.  I think you should
be able to do what you want using the same techniques.  Buyer beware,
of course!  I've never done this myself.

Stephen.