Using iucvconn on Linux on z/VM

Red Hat Enterprise Linux 9.2 z/VM guest

On Linux® on z/VM, you can access the terminal devices that are provided by the z/VM IUCV Hypervisor Console (HVC) device driver.

This graphic is described in the text that follows. — Figure 1. Accessing terminal devices from a peer Linux instance

As illustrated in Figure 1, you access the devices with the iucvconn program from another Linux instance. Both Linux instances are guests of the same z/VM system. IUCV provides the communication between the two Linux instances. With this setup, you can access terminal devices on Linux instances with no external network connection.

Note: Of the terminal devices that are provided by the z/VM IUCV HVC device driver only hvc0 can be activated to receive Linux kernel messages.