<snip> When you say Live Guest Relocation isn’t supported for a z/OS guest is the mechanism for hiding new instructions available for a z/OS guest? </snip>
I mean simply do not do it. z/OS will not work now, and almost certainly will never work in the future in such an environment. z/OS relies on the facilities available at IPL (such as those identified by STFLE) to be available for the life of the IPL. Facilities can be added after IPL, but cannot be taken away. If z/VM for LGR were to be able to keep all facilities relied upon by the guest to be available when running on the relocation target, then that would be a different story. But of course if that were done, it would not help someone try to test things such as "instruction limitations" by using LGR. Peter Relson z/OS Core Technology Design
