Refactor hudson_enable_gevent_smi() to allow configuring the interrupt mode and trigger level. Move the utilities which are useful in SMM to a separate file that is included in both ramstage and SMM. This is useful for SMI handlers which need to enable or disable GEVENT SMIs on-the-fly. A follow-up patch makes use of this infrastructure. Change-Id: Ifa4c300c00c178b18d7280690cfc4b8367c669b8 Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-on: http://review.coreboot.org/170 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@gmail.com>