how to add a new isa ext like Zba?

first i have add a .xml in arch_data/instr
and i assign its group ='Zba'
second i have edit EnumsRISCV.CC and config/riscv_rv64.config and EnumsRISCV_test.cc and riscv_enum_classes.py when i resetup .so file have some error how to solve it