On Mon, Apr 28, 2008 at 11:58:58AM -0500, Kumar Gala wrote: > > On Apr 28, 2008, at 10:59 AM, Scott Wood wrote: > >On Mon, Apr 28, 2008 at 10:40:56AM -0500, Kumar Gala wrote: > >>A few possibilities: > >>* introduce an additional function pointer as part of > >>EXC_XFER_TEMPLATE() to specifies the type of handler (normal, crit, > >>dbg, mcheck) > >>* use the traps field low order bits to determine normal, crit, dbg, > >>mcheck at run time. > >>* duplicate the code paths for each exception level > >> > >>suggestions? > > > >You could temporarily disable all asynchronous exceptions, and use the > >registers of the highest-priority exception type. > > That doesn't work. We have NMIs or will have them in the future.
Truly non-maskable? Ick. You could have a separate code path just for the exception type that NMIs use, I guess, if there's a clear highest-priority among the remaining interrupt types. What sort of exceptions are they? -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
