iPXE booting Windows 7 off iSCSI on a Mac?

[CMPXCHG8B]

Greetings to all!

I was just wondering if the following was possible or not. I've been trying to unsuccessfully build a x86_64-elf toolchain to cross-compile iPXE, though I haven't really gotten anywhere with that- I figured I might as well ask and see if what I want to do is even possible to begin with.

I've got a couple of Mac systems here (a classic Mac Pro, and two laptops) and I was wondering if I could netboot Windows 7 via iSCSI on them, preferably through EFI. The only mention I've seen about iSCSI and EFI booting was from two years ago.

Is this now possible?

-CMPX