Step #01
download an alternative bios file, that supports UEFI
> wget -c http://downloads.sourceforge.net/project/edk2/OVMF/OVMF-X64-r11337-alpha.zip
>unzip OVMF-X64-r11337-alpha.zip OVMF.fd
Step #02
create a disk image
> qemu-img create -f raw linux.img 25G
Step #03
boot into UEFI – not secure boot
> qemu-kvm linux.img \
-bios OVMF.fd
-m 1024 \
-cdrom Fedora-18-x86_64-Live-Desktop.iso \
-boot d \
-usbdevice tablet
With virt-install
virt-install -n f18efi -r 1024 -f linux.img -c /mnt/backup/VMs/iso/Fedora-18-x86_64-Live-Desktop.iso --boot loader=/mnt/backup/VMs/images/uefi/OVMF.fd --graphics vnc