CIFS runs in a virtualized environment just as it does on a physical server running Open Enterprise Server (OES), and requires no special configuration or other changes.
To get started with Xen virtualization, see the SLES 15 Virtualization Guide.
To get started with third-party virtualization platforms, such as Hyper-V from Microsoft and the different VMware product offerings, refer to the documentation for the product you are using.
For information on setting up virtualized OES, see Installing OES on a VM
in the Installation Guide.