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.
No, most of them are RAZ, but there are at least a couple of bits which have effect (e.g. caching of the page tables.)
However, with PAE there aren't really a whole lot of unused bits in CR3. -hpa - 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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