Re: [PATCH V3 2/2] perf/x86/intel/uncore: add enable_box for client msr uncore

* kan.li...@intel.com wrote: > From: Kan Liang > > PERF_GLOBAL_CTL could be cleared after Package C7. This patch tries to > workaround this issue by re-enable PERF_GLOBAL_CTL in enable_box. > The workaround does not cover all cases. It helps for new events after > returning from C7. > There is

[PATCH V3 2/2] perf/x86/intel/uncore: add enable_box for client msr uncore

From: Kan Liang PERF_GLOBAL_CTL could be cleared after Package C7. This patch tries to workaround this issue by re-enable PERF_GLOBAL_CTL in enable_box. The workaround does not cover all cases. It helps for new events after returning from C7. There is no drawback in letting the thing enabled, so