Setting up cooperative memory management
Set up Linux® on z/VM to participate in the cooperative memory management by loading the cooperative memory management support module, cmm.
Use the modprobe command to load the module. See the modprobe man page for command details.
where <user_ID> specifies the z/VM guest virtual machine that is permitted to send messages to the module through the special messages interface. The default z/VM user ID is VMRMSVM, which is the default for the VMRM service machine.
To load the cmm module automatically at boot time, see the section on persistent module loading in Configuring basic system settings (https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_basic_system_settings/).
Example
To load the cooperative memory management module and allow the z/VM guest virtual machine TESTID to send messages:
# modprobe cmm sender=TESTID