Unable to use csu_config.h to secure GPIO access from normal world - users

6 Jun 2017


      Hello
I am using genode trustzone code on imx53 board. AFAIU, following lines in
csu_config.h are supposed to regulate the access from normal world:
```
namespace Csu_config
{
        enum {
                SECURE_GPIO  = 1,
                SECURE_ESDHC = 0,
                SECURE_UART  = 0,
                SECURE_I2C   = 1,
        };
};
```
Though GPIO is set secure, I am still able to set direction and value of
gpios from the linux running in normal world, on top of tz_vmm running in
secure world. Should it not raise some exception? Where am I going wrong?
Thanks
Abhishek