Re: pentium 4MB pages question for you MMU hackers

Andrew E. Mileski (aem@ott.hookup.net)
Fri, 3 Jan 1997 17:03:07 -0500 (EST)

> Id like to ask a dumb question here, before I say something really
> ignorant.
>
> What is ring0 code? How does it relate to linux/unix?

Ring 0 = supervisor or kernel mode (unrestricted access)
Ring 3 = user mode (restricted access)

All unices operate in two modes. The Intel ix86 supports 4 "modes"
or "rings", or "levels", so only the two extremes are used.

> What are GGI's?

Why not try a WEB SEARCH next time - The Internet is an amazing thing :-)

GGI = General Graphics Interface

http://synergy.caltech.edu/~ggi/

> If ring0 is what I think it is, this could make 1997 very long and ugly.

Huh?

--
Andrew E. Mileski   mailto:aem@ott.hookup.net
Linux Plug-and-Play Kernel Project http://www.redhat.com/linux-info/pnp/
XFree86 Matrox Team http://www.bf.rmit.edu.au/~ajv/xf86-matrox.html