UEFI bios for QEMU

Building

Preparation

git clone https://github.com/tianocore/edk2.git
cd edk2

bios32.bin

OvmfPkg/build.sh -a IA32 -n 4
cp Build/OvmfX64/DEBUG_GCC4?/FV/OVMF.fd bios32.bin

bios64.bin

OvmfPkg/build.sh -a X64 -n 4
cp Build/OvmfX64/DEBUG_GCC4?/FV/OVMF.fd bios64.bin

Using

32-bit UEFI in 64-bit system (emulating BayTrail)

qemu-system-x86_64 -bios /path/to/bios32.bin ....<other qemu options>.... 

64-bit UEFI in 64-bit system

qemu-system-x86_64 -bios /path/to/bios64.bin ....<other qemu options>.... 

32-bit UEFI in 32-bit system (emulating old Macs

qemu-system-i386 -bios /path/to/bios32.bin ....<other qemu options>....