Reference

Red Hat Enterprise Linux 9.2 LPAR mode z/VM guest KVM guest

Use these commands, kernel parameters, kernel options to configure Linux® on IBM® Z. Be aware of the z/VM® DIAG calls required by Red Hat® Enterprise Linux 9.2.

Restrictions

For prerequisites and restrictions see the IBM Z® architecture specific information in the Red Hat Enterprise Linux 9.2 release notes at
https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9