using segmentation to manage memory in FreeBSD

[Kamal R. Prasad]

--- John Baldwin <jhb at FreeBSD.org> wrote:
> On Tuesday 08 March 2005 09:05 am, Ravi Krishna
> wrote:
> > Hi all!
> >
[snip]
> 
> Segments just provide a base + offset into the
> virtual address space that is 
> backed by the TLB mappings, so to make this
> practically useful would be a lot 
> more work than would first appear because your
> segments have to map virtually 
> contiguous memory.
> 
If I had a processor with no MMU, but only memory
protection and a segment register, can I port freebsd
onto that architecture? I mean, use the segment
register to provide for non-conflicting process
spaces.

thanks
-kamal


------------------------------------------------------------
Kamal R. Prasad
UNIX systems consultant 
kamalp at acm.org

In theory, there is no difference between theory and practice. In practice, there is:-).
------------------------------------------------------------


	
		
__________________________________ 
Celebrate Yahoo!'s 10th Birthday! 
Yahoo! Netrospective: 100 Moments of the Web 
http://birthday.yahoo.com/netrospective/