PVA Authentication

Applies to the Jetson Orin NX series and Jetson AGX Orin series.


The Programmable Vision Accelerator (PVA) is a specialized engine to accelerate computer vision and image processing tasks. Specialized software libraries such as VPI utilize the PVA.

By default, only signed application code is allowed to execute on the PVA hardware. Software libraries provided by NVIDIA, such as VPI, will register signatures with the system when the libraries are installed by using a package manager on the target device.


Errors that occur while executing software that uses the PVA engine might be due to the incorrect signature registration. To troubleshoot these issues, a privileged user can temporarily override the authentication mechanism by running the following command:

$ sudo bash -c ‘echo 0 > /sys/kernel/debug/pva0/vpu_app_authentication’

To enable authentication protection again, run the following command:

$ sudo bash -c ‘echo 1 > /sys/kernel/debug/pva0/vpu_app_authentication’