Re: [PATCH 1/1] perf/x86: Use KERN_INFO when checking PMU fails on virtual environment

Hi Ingo, tglx and hpa, Any comment on this patch? Thanks. -Wei On 09/24/2014 10:55 PM, Wei Huang wrote: PMU checking can fail due to various reasons. On native machine, this is mostly caused by faulty hardware and it is reasonable to use KERN_ERR in reporting. However, when kernel is running o

[PATCH 1/1] perf/x86: Use KERN_INFO when checking PMU fails on virtual environment

PMU checking can fail due to various reasons. On native machine, this is mostly caused by faulty hardware and it is reasonable to use KERN_ERR in reporting. However, when kernel is running on virtualized environment, this checking can fail if virtual PMU is not supported (e.g. KVM on AMD host). It