> Linux under z/VM might be able to do so, by relying on the hypervisor’s card device driver. Actually thinking more about the code I linked, I don’t think thi

> Linux under z/VM might be able to do so, by relying on the hypervisor’s card device driver. Actually thinking more about the code I linked, I don’t think this would work - even if the z/VM hypervisor (CP) still knows how to talk to physical card devices (maybe the code has bitrotted, or maybe IBM has removed it as legacy cruft) - the DIAG interface would report it as a physical/real device, and hence that Linux kernel driver would refuse to talk to it