Good point about the sizes... I hadn't thought of that. A NO_ACCESS flag sounds pretty reasonable to me.
Steve On Thu, Feb 19, 2009 at 10:13 PM, Gabe Black <[email protected]> wrote: > That sounds good, but I'm not sure what sort of special encoding to use. > The accesses need to be the real size because the last bytes could be > why it faults. I considered whether piggybacking on prefetches would > work, but the semantics are a little different there too. Do you have > any other suggestions? Maybe there could just be a flag like "NO_ACCESS" > that got tacked onto the read or write. > > Gabe > > Steve Reinhardt wrote: > > I'd argue that these test accesses should be encoded as 0-byte reads > > or something like that rather than direct translation requests anyway, > > since we really want the "fault or noop" semantics anyway, and this > > would avoid widening the ExecContext interface. > > >
_______________________________________________ m5-dev mailing list [email protected] http://m5sim.org/mailman/listinfo/m5-dev
