Why does exceptions have anything to do with no-mmu?
There are exceptions that have nothing to do with MMU's, and a no-mmu
architecture should still support them. On x86, we have a number of such
exceptions, for example general protection stuff for wrong values for
special registers etc.
In other words, not applied. Page table exceptions are just the most
_common_ exception type, but there's absolutely nothing in the mechanism
that has anything at all to do with MMU-less.
If some archtiecture happens to have an empty exception table, that's
fine.
Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/