const void *find_startup_info (const void *start, 
                               unsigned type)

Attempt to locate the kind of information specified by type in the data area used by the IPL code to communicate such information. Pass start as NULL to find the first occurrence of the given type of information. Pass start as the return value from a previous call in order to get the next information of that type. Returns 0 if no information of that type is found starting from start.