Re: [PATCHv2 1/4] perf/core: Add support to exclude kernel mode PMU tracing

Hi, On Mon, Mar 1, 2021 at 11:05 AM Sai Prakash Ranjan wrote: > > Hardware assisted tracing families such as ARM Coresight, Intel PT > provides rich tracing capabilities including instruction level > tracing and accurate timestamps which are very useful for profiling > and also pose a

[PATCHv2 1/4] perf/core: Add support to exclude kernel mode PMU tracing

Hardware assisted tracing families such as ARM Coresight, Intel PT provides rich tracing capabilities including instruction level tracing and accurate timestamps which are very useful for profiling and also pose a significant security risk. One such example of security risk is when kernel mode