devr-virtio.so
QNX SDP8.0Utilities ReferenceUtilities
Random service entropy library for a Virtio RNG (random number generator)
Syntax:
random -l devr-virtio.so[:option[,option ...]]
Runs on:
QNX OS
Options:
- delay=seconds
- Provide entropy to the random service at this interval, in seconds. (Range 1-300s, default 15s).
- prio=priority
- The minimum priority for the entropy collection thread.
- mem=address
- For ARM targets, the MMIO address of the Virtio RNG (random number generator) device. To obtain address, in the QEMU console, enter info qtree.
Description:
The devr-virtio.so shared object reads entropy from a Virtio paravirtual RNG (random number generator) and provides it to the random service PRNG (pseudo-random number generator).
For example, to enable the Virtio RNG interface for a QEMU virtual machine, add the following option to the qemu-system-target command line:
-object rng-random,filename=/dev/urandom,id=rng0
For x86_64 architectures, add the following additional option:
-device virtio-rng-pci,rng=rng0
For AArch64 and ARM architectures, add the following additional option:
-device virtio-rng-device,rng=rng0
Examples:
For AArch64:random -l devr-virtio.so:mem=0x1c130200
For x86_64: random -l devr-virtio.so
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