block_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_NON_SHARED_INC,VIR_MIGRATE_LIVE

and it works great.

I am currently building a new stack based on EL7 and Juno,  however when I attempt to do a migration (nova live-migration --block-migrate x), i receive the following: 

libvirtError: internal error: unable to execute QEMU command 'migrate': this feature or command is not currently supported

I've found a couple of related BZs:

Am I understanding this correctly that they have completely removed this feature from RHEL7? Unless I'm running the RHEV variant of qemu-kvm??