Verify Confidential Computing is enabled on GPUs

After completing the configuration steps, verify that your GPU is correctly operating in confidential computing mode:

Verify that the nvidia-persistenced service is running with uvm-persistence-mode enabled:
```
ps aux | grep nvidia-persistenced | grep -v grep
```
The output is similar to the following:
```
nvidia-+     729  6.2  0.0   5468  1664 ?  Ss   12:02   0:10
/usr/bin/nvidia-persistenced \
--user nvidia-persistenced \
--uvm-persistence-mode \
--verbose
```
Caution: Don't restart the nvidia-persistenced service after enabling uvm-persistence-mode, as this can disrupt the secure connection and require a VM reboot.
Confirm that the GPU is running in confidential computing mode:
```
sudo nvidia-smi conf-compute -f
```
The output is similar to the following:
```
CC status: ON
```
Set GPU to ready state after each reboot.
```
sudo nvidia-smi conf-compute -srs 1
```
Verify Confidential Computing ready state.
```
sudo nvidia-smi conf-compute -grs
```
If you transition a GPU out of the ready state using nvidia-smi conf-compute -srs 0, reboot the VM instance to return the GPU to the ready state.

The output is similar to the following:
```
Confidential Compute GPUs Ready state: ready
```