On Wed, 1 Dec 2010 11:25:54 -0500, Tony Harminc wrote: > >It is, though, curious that there must be, as Paul Gilmartin points >out, quite a bit of infrastructure already there in support of 64-bit >addresses. The real PSW is at all times beyond the early stage of IPL >a zArch one of 128 bits, and it must be saved and restored properly, >as must things like PER addresses in control registers. What remains >to be done? > All this can be done internally. Changing GUPI control blocks may pose a different sort of challenge. It might even require changes as basic as formatting dumps.
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