Hello here is rediff & update of my efiemu patch. Now it's patched on 
top of following patch chain:
bootmove->preboot->mmap->acpi
Now to use it do ([32|64] means 32 for 32-bit version, 64 for 64-bit 
version):
efiemu_loadcore /grub/loadcore[32|64].o
efiemu_pnvram [pnvram file if any]
efiemu_prepare
<commands to load OS using efiemu>
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Regards
Vladimir 'phcoder' Serbinenko