In writing the previous Phoronix article, from the TianoCore site it was quietly discovered that Intel already put out the "Green H" files (the foundation support) in TianoCore for Broadwell and Bay Trail
Haswell hasn't even been released yet as Intel's 2013 platform while Broadwell is its successor as the 14nm shrink of Haswell not due out until 2014. Broadwell will be built on a multi-chip package design and introduce some new instruction set extensions and other interesting but yet-to-be-revealed goodies. In ensuring good UEFI support, Intel already released the 2014 processor's Green H files for TianoCore. This will be used by motherboard vendors looking to jump-start work on products for Broadwell.
The other Green H files that were published are for Bay Trail, Intel's next-generation Atom processor targeting tablets. Bay Trail is expected to be released this year, built on a 22nm process for its four processors, and roughly twice the performance of current generation Intel products while being great on the battery. Bay Trail was talked about by Intel earlier this month at the Consumer Electronics Show while it should start appearing in (Android-based) tablets by the end of the year.
From the TianoCore site two weeks ago:
Intel Green H - EDK1117 Patch Version 9 Download Patch 9 - This package contains the full set of Green H files intended to be used for the Broadwell Platform and Bay Trail Platform (Intel Corporation Code names). The configuration that will be utilized for platform validation is UEFI 2.3.1 and Framework 0.9x (without Framework HII). This package does not contain the associated build tools required for UEFI 2.3.1 support. Further details are available from your Intel client BIOS support representative.