Library for reading MirageOS unikernel boot parameters in Xen

Simple library for reading MirageOS unikernel boot parameters from Xen.

To send boot parameters to the unikernel you can either add them as options in the "extra=" field in the .xl-file, like this:

extra="key1=val1 key2=val2"

.. or add them when starting the unikernel from the command line:

sudo xl create unikernel.xl 'extra="key1=val1 key2=val2"'

Bootvar was originally a part of mirage-mimic, but is now released as a separate library.