[Fault-injection-developer] [RFC] reconstruct pf module

[Zhuang, L. <lou...@in...>]

We'd like split instrcution analisys code and general mmio probe code in pf
moudle. That is, we'd like support a general mmio probe mechanism interface
as the infrastructure of pf module. the interface is like

struct kmmio_probe {
	kmmio_addr_t *addr;
	kmmio_pre_handler_t pre_handler;
	kmmio_post_handler_t post_handler;
	void *data; //opaque data structure
}

kmmio_probe_register(struct kmmio_probe *);
kmmio_probe_unregister(struct kmmio_probe *);

Then, pf module place probe on the address and analysis instruction in
pre/post_handler and feedback to fi_core.