On 23 Mar 2006, at 00:40, Chris Wright wrote: >> Would you have less trouble if the "ROM" were actually more like a >> module? Specifically, if it had a proper elf header and symbol table, >> used symbols as entry points, and was a GPL interface (so that ROM's >> had >> to be GPL)? Then it's just a kernel module that's hidden in the >> option >> ROM space and has a C interface. > > Yeah, point is the interface is normal C API, and has the similar free > form that normal kernel API's have. i think this sounds very sane, and an OS-specific interface shim gets around problems such as finding CPU-specific state -- we can get at smp_processor_id() just the same as the rest of the kernel, for example. We could extend the concept of the interface shim we already have -- a set of OS-specific high performance shims, plus a fallback OS-agnostic shim. -- Keir
