Loading the device driver modules
If the protected key device driver is compiled as separate modules, you must load the modules before you can generate protected keys.
Normally, the pkey and its handler modules are loaded automatically.
Should you need to load the pkey module, use the modprobe
command. The pkey module has no module parameters. The pkey module
is the base module, and is supported by several handler modules.
Depending on the key material you want to work with, you might need to load the
handler modules. To load one of the pkey handler modules, issue a command of the
form:
# modprobe <pkey_module>
The pkey handler modules are:
- pkey, the base kernel module.
- pkey_cca for supporting protected keys derived from CCA secure keys.
- pkey_ep11 for supporting protected keys derived from EP11 secure keys.
- pkey_pckmo for deriving protected keys from clear key material.
- Secure execution environment only: pkey_uv for protected key support through the ultravisor.