Previously, the agent behaviour was controlled entirely using the
`kernel_params=` config option. This mechanism suffers from a subtle
problem - the runtime is not aware of how the agent will behave.
From now on, all significant agent options will be controlled from the
agent section in the configuration file. This allows the runtime to be
more aware of -- and in control of -- such agent settings. It would also
allow the underlying kernel CLI options to be modified in the future if
required.
This PR adds the only useful agent option as an explicit option by
adding an `enable_debug=true` option to the Kata agent section in
`configuration.toml`. This allows controlling agent debug to be handled
in the same manner as the other debug options.
This change is somewhat foundational: it permits the agent to be handled
consistently with other config file sections which is useful, but
arguably not essential (the old way worked). However, the new way of
handling agent options will be essential when introducing agent tracing
control as the runtime must be aware of the agent trace mode to allow
the runtime to modify its behaviour accordingly.
Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
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