Patches Revised For AMD PerfMonV2 PMU Guest Support

Back in March AMD began sending out patches for PerfMonV2 support with Zen 4 CPUs. This updated AMD Performance Monitoring "V2" code has premiered now with AMD Ryzen 7000 series and AMD EPYC 9004 series processors and the host-side PerfMonV2 code was merged in Linux 5.19. But support for PerfMonV2 within KVM guests has been lacking while now an updated patch series is working to address the functionality there...