Question about OP-TEE

Dear. Linaro

hello! my name is Hojin-Choi from Korea Univ in Korea I have a question about optee currently werun optee with virtual machine. Although we modify 'Makefile' in 'build' folder for changing cortex a-15 to cortex-a9 in optee, it give error message which "cortex-a9's support machines 'xilinx-zynq-a9, vexpress-a9, realview-pbx-a9, sabrelite' do not support secure". How can we fix the error or any other methods to run cortex-a9 with trustzone?

best.