On Mon, 2013-06-17 at 19:01 -0500, Scott Wood wrote: > I really doubt the exception scratch registers need to be saved -- > we're not trying to restore into the middle of an exception > prolog/epilog. > > book3s has the PACA as well and they don't save it. Don't we rely on > things like boot-time memory allocations happening in the same place > when we resume? extlb is part of the PACA, so the same applies.
I doubt we seriously tested hibernation :-) The PACA SPR should definitely be saved/restored. > Granted, this isn't performance critical so it may seem better to > save/restore just in case, but there's value in not unnecessarily > deviating from what book3s does. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
