Displaying information about the modules

6.14 LPAR mode z/VM guest KVM guest

Loaded modules can export module parameter settings to sysfs.

The parameters for modules are available in sysfs as files that have names of the form:

/sys/module/<module name>/parameters/<parameter name>

Before you begin

You can display information about modules that fulfill these prerequisites:

To find and display the parameters for a module, follow these steps:

Optional: Confirm that the module of interest is loaded by issuing a command of this form:
```
# lsmod | grep <module_name>
```
where <module_name> is the name of the module.
Optional: Get an overview of the parameters for the module by issuing a command of this form:
```
# modinfo <module_name>
```
Check if the module of interest exports parameters to sysfs. Issue a command of the form:
```
# ls /sys/module/<module_name>/parameters
```
If the previous command listed parameters, you can display the value for the parameter of interest. Issue a command of the form:
```
# cat /sys/module/<module_name>/parameters/<parameter name>
```

To list the module parameters for the ap module, issue:
```
# ls /sys/module/ap/parameters
 domain
 ...
```
To display the value of the domain parameter, issue:
```
# cat /sys/module/ap/parameters/domain
1
```