How to add a mali gpu node in FVP?

I find in document that FVP support mali gpu emulation, and tried to run FVP via following argument:

```

$ ./FVP/Base_RevC_AEMvA_pkg/models/Linux64_GCC-9.3/FVP_Base_RevC-2xAEMvA -l | grep gpu
gpu.gpu.revision=r0p0 # (string, init-time) default = 'r0p0' : Revision of the RTL that the model represents. Valid values: r0p0

```

But I can not find mali device node after running the FVP, is there anything else should I do? or maybe any tutorials?