Eric W. Biederman wrote: > If (cpu_has_pse) it may only be an additional two pages. > INIT_MAP_BEYOND is currently mapping a lot more then that. >
Ah, yes. It allocates an extra two pages for pagetables, and then maps an extra 8MB or so. >> Would that be necessary? Is there any need to remap it? Couldn't you >> just do the straightforward phys->virt mapping and use the page where it >> lies? >> > > Catch-22. If the page is not mapped yet you can't use it where it lies. Why not? Er, except in the case where the page is needed to map itself - but that can be dealt with with a transient fixmap mapping. J - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/