As a user of LVMS:v4.12 i would like to be able to enable and use the workload partitioning.

Enable workload partitioning on your OCP cluster, install LVMS:v4.12 and 
[core@master0 script]$ ps -eLo psr,pid,cmd | grep "^  3"
  3      31 [cpuhp/3]
  3      33 [migration/3]
  3      34 [ksoftirqd/3]
  3      35 [kworker/3:0-mm_percpu_wq]
  3      36 [kworker/3:0H-events_highpri]
  3     509 [kworker/3:1-events]
  3     946 [bnx2i_thread/3]
  3    2118 [kworker/3:1H-kblockd]
  3   22002 /usr/bin/csi-node-driver-registrar --csi-address=/run/topolvm/csi-topolvm.sock --kubelet-registration-path=/var/lib/kubelet/plugins/topolvm.io/node/csi-topolvm.sock
  3  115147 /manager --health-probe-bind-address=:8081 --metrics-bind-address=127.0.0.1:8080 --leader-elect
  3  115147 /manager --health-probe-bind-address=:8081 --metrics-bind-address=127.0.0.1:8080 --leader-elect
  3  115457 /controller
  3  199946 cputest latency -l 3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53 -s 600
[core@master0 script]$ taskset -pc 115147
pid 115147's current affinity list: 22-31,54-63

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expected result will be that LVMS workload is not scheduled on the workload partitioning cores

This has been implemented in LVMS:v4.13 --> https://issues.redhat.com/browse/OCPVE-235