Mac Pro (late 2013 model) EFI and iPXE booting

[Pretzel]

UPDATE for anyone who finds this thread:

mcb30 and I worked together over a few weeks on coming up with a solution. (He coded, I did QA/testing and feedback.) The latest release in the Master branch appears to work for me using rEFIt.

https://git.ipxe.org/ipxe.git/commit/0e3...2672e73461

This release (and presumably any release after this) should allow UEFI Macintosh machines and other UEFI machines to successfully run iPXE.

I had to compile using "make bin-x86_64-efi/ipxe.efi" myself, but perhaps there is a pre-compiled binary on the ipxe.org by now.