On Mer, 2005-11-23 at 10:42 -0800, Linus Torvalds wrote: > Of course, if it's in one of the low 12 bits of %cr3, there would have to > be a "enable this bit" in %cr4 or something. Historically, you could write > any crap in the low bits, I think. There is a much much better way to do it than just user space and without hitting cr3/cr4 - put "lock works" in the PAT and while we'll have to add PAT support which we need to do anyway we would get a world where on uniprocessor lock prefix only works on addresse targets we want it to - ie pci_alloc_consistent() pages. Alan - 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/
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