I looked into the available documentation and article but i had no luck validating if Openstack Barbican integration with FIPS Operation mode Enabled works. Any suggestions?

The below barbican backend guide shares the available plugins with HSM :
https://docs.openstack.org/security-guide/secrets-management/barbican.html

Does Barbican now support module generated IV ? which is required for FIPS support in Thales A790 HSM.

Regards,

Rajiv