[CST-2] Comparative Architectures

[Alvin]

Well, aliasing means that > 1 virtual address points to the same physical
address.  If the index size < page size, then there's a physical address
available to every virtual address, which means no aliasing needed.

Obvious a user can still hack around that, but the OS can prevent it.

Alvin

> On p. 112 of the notes he talks about the need to avoid virtual address
> aliasing in caches. He gives one way of fixing this as "ensure index size <
> page size".
> 
> I can't see how this stops aliasing. Can anybody help?
> 
> Thanks,
> 
> Stephen
> --
> Stephen Rymill
> Jesus College, Cambridge, CB5 8BL
> stephen@stephenrymill.com - http://www.stephenrymill.com
> 
> 
> 
> _______________________________________________
> CST-2 mailing list
> CST-2@srcf.ucam.org
> http://www.srcf.ucam.org/mailman/listinfo/cst-2