On Sun, 2012-09-09 at 09:56 -0700, H. Peter Anvin wrote: > > > So it should either be start=0xfffffffffffff000 end=0xffffffffffffffff > > or it should be start=0xfffffffffffff000 len=0x1000. > > I would strongly object to the former; that kind of inclusive ranges > breed a whole class of bugs by themselves. Another alternative that avoids overflow issues is to use a PFN rather than a byte address. -- dwmw2
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