Description of problem:

When RHEL 8.6 is installed and then the RT kernel is installed using the yum method, the kernel-rt-kvm RPM is not installed by default. See: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux_for_real_time/8/html-single/installing_rhel_8_for_real_time/index#proc_installing-red-hat-enterprise-linux-for-real-time-using-yum_assembly_installing-rhel-for-real-time

If tuned is then used to apply the cpu-partitioning profile, there is a silent failure with the following errors (in /var/log/tuned/tuned.log):

2022-12-15 11:13:30,086 INFO tuned.plugins.plugin_script: calling script '/usr/lib/tuned/cpu-partitioning/script.sh' with arguments '['start']'
2022-12-15 11:13:30,132 ERROR tuned.plugins.plugin_script: script '/usr/lib/tuned/cpu-partitioning/script.sh' error output: 'modinfo: ERROR: Module kvm not found.
modinfo: ERROR: Module kvm not found.
modinfo: ERROR: Module kvm_intel not found.'

Note that this is a silent failure - it looks like the tuned profile was applied successfully, but the /usr/lib/tuned/cpu-partitioning/script.sh exits early and doesn't complete.

Version-Release number of selected component (if applicable):
tuned-profiles-cpu-partitioning-2.19.0-1.1.20221013git12fa4d58.el8fdp.noarch

How reproducible: Always

Steps to Reproduce:
1. Install RHEL 8.6
2. Install RT kernel
3. Apply tuned cpu-partitioning profile

Actual results:

The cpu-partitioning profile is not applied properly. The only indication of failure is in the tuned logs.

Expected results:

The cpu-partitioning profile is applied properly.

Additional info:

The workaround is to enable the rhel-8-for-x86_64-nfv-rpms repo and install the kernel-rt-kvm RPM. I'm not sure if that would be available to all users?

Also, I don't think this happened in RHEL 8.5 (but I'm not 100% sure about that).