RE: [patch 01/41] cpu_alloc: Increase percpu area size to 128k

Luck, Tony
2008-06-10T19:54:55Z

> > > -#define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */
> > > +#define PERCPU_PAGE_SHIFT 17 /* log2() of max. size of per-CPU area */
> >
> > Don't you need some more changes to the alt_dtlb_miss handler in
> > ivt.S for this to work? 128K is not a supported pagesize on any
> > processor model.
>
> Ok so this needs to be 18?

Yes. 18 will work (256K is an architected page size, guaranteed to be supported
by all processor models ... SDM 2:52 table 4-4).

-Tony