Building a kernel with the PRNG device driver

7.1 LPAR mode z/VM guest KVM guest

Select option CONFIG_S390_PRNG in the kernel configuration menu to build a kernel with the PRNG device driver.

Kernel builders: This information is intended for those who want to build their own kernel. Be aware that both compiling your own kernel or recompiling an existing distribution usually means that you have to maintain your kernel yourself.

Figure 1. PRNG kernel configuration menu options

 Cryptographic API --->
    ...
    Hardware crypto devices  --->
       ...
       Pseudo random number generator device driver             (CONFIG_S390_PRNG)

The PRNG device driver can be compiled into the kernel or as a separate module, prng.