According to TSA Manuals, there is a limited support for KVM environment.
RHEV-H/KVM hypervisor version 5.4 or higher on all supported Linux distributions on IBM System x. Live migration of systems is not supported.
Recently, the z systems customers are considering to use KVM instead of z/VM.
For them, it is time to be concerned about whether cluster configurations can be done with guest OS.
For the time being, I think that KVM provided with SLES 12 SP 2 will be the target, but is TSA plan to support this environment?