Sigma0 is the root task (i.e.
it runs in a root protection domain and it is the first task run by the hypervisor). Its initialization is controlled by command line parameters. Every parameter basically describe the operations to be performed on startup. In Sigma0 sources, every parameter is defined with PARAM() macro. Its first argument is the name of the parameter, the second argument is the code to be performed when the parameter is encountered in the script and the rest of arguments are lines of the help text.
After all parameters are processed, the main thread blocks and Sigma0 is controlled only by inter-process communication (IPC).
1.7.1
