Description of problem:
Hot unplugging of vCPUs is not currently supported on Red Hat Enterprise Linux 7.
This reflects the rhel7.0-7.2 state, but with bz1097930 we officially implemented this feature in rhel7.3. Also https://rhn.redhat.com/errata/RHSA-2016-2577.html mentions it as "1097930 - [RFE] Hot Un-Plug CPU - Support dynamic virtual CPU deallocation - libvirt"
Version-Release number of selected component (if applicable):
This was reported by a partner.
Section Number and Name:
Describe the issue:
Suggestions for improvement: