Paul, in short, no. The operating system runs on the underlying logical and physical hardware. So if I have z/VM running in an LPAR that has only IFLs assigned logically to it, z/OS will not be able to run. If I have a mix of IFLs and CPs in the LPAR, then you can start up z/OS as a z/VM guest and assign one of the LPAR's logical CPs as a virtual CP to that z/VM guest, and z/OS is good to go.
The way IFLs, zIIPs and zAAPs work is that several machine instructions that z/OS needs are disabled. There was an attempt two years ago...and probably more we don't hear about...by a user to circumvent this. As a consequence IBM changed the MLC agreement to prohibit you from doing this. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN