There is a bios.bin binary file for use with QEMU available at http://fabrice.bellard.free.fr/qemu/efi-bios.tar.bz2. It is meant to be used as a BIOS replacement for QEMU and provides an EFI interface. It is compiled from the TianoCore sources, at least that’s what the QEMU homepage suggests.
The problem with this file is that it can only be used with very few versions of QEMU, that’s why I’m writing this.
I’ve had success with version 0.9.0 when the patches linked from the coreboot wiki were applied. I’ve also had success with a CVS snapshot from July 3rd, 2007. Version 0.9.1 or the stock 0.9.0 do not work.