On Fri, May 10, 2019 at 11:39 AM Mike Stramba <mikestra...@gmail.com> wrote:
> Is there a machine or z/os instruction / command to recognize "real > iron" rather than a zpdt or "other" emulation system? > > I realize that emulating the real hardware is the point, and that > maybe ??? there is no way the o/s can know "for sure" ? > > .. Or maybe not ? ;) > Look at the machine type in the CPUID from the STIDP (priviliged) instruction. According to the POP, bits 0-7 will contain either x'C1' or x'D3' if running on a zPDT (when the OS itself is not running as a guest under z/VM). > > Mike > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- This is clearly another case of too many mad scientists, and not enough hunchbacks. Maranatha! <>< John McKown ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
