There are firmware descriptors of OVMF for qemu on openSUSE/SLE. Base on the descriptors in qemu git repo: https://git.qemu.org/?p=qemu.git;a=tree;f=pc-bios/descriptors
All elements of descriptor in .json have defined here: https://gitlab.com/qemu/qemu/-/blob/master/docs/interop/firmware.json
This is the source repo of descriptors.tar.xz in openSUSE:Factory/ovmf package: https://build.opensuse.org/package/show/openSUSE:Factory/ovmf