Configuring a random number generator

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Provide a virtual random number generator only if the host is equipped with a hardware random number generator, such as the secure IBM® CCA coprocessor of a Crypto Express adapter.

Procedure

Use the rng element to configure a random number generator (see <rng>).

rng model attribute:

virtio

Use the backend element as child of the rng element to specify the device node of the input character device (see <backend>).

Currently, /dev/random is the only valid device node.

backend model attribute:

random

backend element:

<device-node>

Example

<devices>
    ...
    <rng model="virtio">
        <backend model="random">/dev/random</backend>
    </rng>            
    ...
</devices>