Appendix A: Real-Time Linux Defconfig

5.15-rt17 patch: 0001-patch-5.15-rt17.patch
rt-for-dvk patch: 0002-rt-for-dvk

Note: You can contact your technical support to get the patches. Please apply the patches in the above order.

To apply the patches, execute the following command:

Verification

To verify the configuration, please follow the steps below:

Execute the following command under SDK source code path:
```
make linux-menuconfig
```
Open Fully Preempt Kernel under Preemption Model.
Figure 2. Fully Preempt Kernel
Confirm the CPU Frequency scaling policy has changed under Device Drivers.
Figure 3. CPU Frequency scaling
After compiling and burning the image, execute the following command to check if it is an RT kernel:
```
cat /proc/version
```
Result:
Figure 4. Example Result
```
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
```
Result:
Figure 5. Example Result
Execute the following command to check if the corresponding configuration is opened properly:
- ```
zcat /proc/config.gz | grep PREEMPT
```
  Result:
  Figure 6. Example Result
- ```
zcat /proc/config.gz | grep HZ
```
  Result:
  Figure 7. Example Result
- ```
zcat /proc/config.gz | grep GOV
```
  Result:
  Figure 8. Example Result