On Tue, 20 Nov 2007, H. Peter Anvin wrote: > But you wouldn't actually *use* this address space. It's just for the linker > to know what address to tag the references with; it gets relocated by gs_base > down into proper kernel space. The linker can stash the initialized reference > copy at any address (LMA) which can be different from what it will be used at > (VMA); that is not an issue.
That is already provided by this patchset. The cpu area starts at absolute 0. > To use %rip references, though, which are more efficient, you probably want to > use offsets that are just below .text (at -2 GB); presumably > -2 GB-[max size of percpu section]. Again, however, no CPU actually needs to > have its data stashed in that particular location; it's just an offset. Right. That is what we are discussion in another thread. - 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/
