Re: [PATCHv2 3/4] coresight: etm4x: Add support to exclude kernel mode tracing

On 2021-03-02 04:13, Doug Anderson wrote: Hi, On Mon, Mar 1, 2021 at 11:05 AM Sai Prakash Ranjan wrote: On production systems with ETMs enabled, it is preferred to exclude kernel mode(NS EL1) tracing for security concerns and support only userspace(NS EL0) tracing. Perf subsystem interface us

Re: [PATCHv2 3/4] coresight: etm4x: Add support to exclude kernel mode tracing

Hi, On Mon, Mar 1, 2021 at 11:05 AM Sai Prakash Ranjan wrote: > > On production systems with ETMs enabled, it is preferred to exclude > kernel mode(NS EL1) tracing for security concerns and support only > userspace(NS EL0) tracing. Perf subsystem interface uses the newly > introduced kernel confi