prasanna wakhare (prasannawakhare@xxxxxxxxx) wrote:
> hi,
> Do u want to say that the address in yr example
> program
> go through tha page table?
> if yes then i would clear you that each and every
> address issued by processor always go through
> page tables,(forget about cache etc ),
> becoz linux and every modern OS enables paging at very
> start when it starts in real mode(X86) ,
> I think you can find the code of enabling the paging
> bit(I think in CR0)
%CR0 : enable paging
%CR3 : page table pointer
see : arch/i386/kernel/head.S (as you say)
> register in head.S in linux,in which processor
> switches
> from direct address to page table addressing
> (forget about segmentation again u wont disable in intel processors )
What do you want to say about segmentation ?? :o(
> you should read code of switching from real to
> protected its very interesting code further any doubts
> their u raise on the list.
> Prasanna
>
> --- paging queries <pdn@xxxxxxxxxx> wrote:
>
> >
> > I would want to know if a simple program like this
> > would use paging or not.
> > Is it possible for this program to make use of
> > paging.
> > void main()
> > {
> > printf("hi");
> > }
> >
> > What are the citerias for the os to force paging...
> > Can user force a program to be paged?
> > Can you give me an example when a user can make use
> > of paging?
> > I have tons of doubts on these please clarify.
> > Thank You.
> > --
> > .
> >
> >
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Amicalement/Regards
Christophe Lucas - c.lucas@xxxxxxxxxxx - Registered User #271267
* GNU/Linux developer/network administrator
* Membre du RotomaLUG (LUG de la région Rouennaise)
(http://www.rotomalug.org)
* http://odie.mcom.fr/~clucas/
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