This short patch series fixes several issues related to PEBS on Haswell and later processors.
- The HT corruption bug (HSD29) is fixed on Broadwell, there is no need to mark events 0xd0-0xd3 as exclusive. This was fixed for non-PEBS mode but not for PEBS mode. - On Haswell and later, there is a bug with the GLOBAL_OVF_STATUS bits reporting counter overflows for PEBS events. SDM says it should not but I ran into cases where bits 0-3 were set, causing double processing of the samples and samples missing the EXACT tag. See changelog Tested on Haswell, Broadwell, SkyLake Patch relative to tip.git Stephane Eranian (3): perf/x86/intel: add definition for PT PMI bit perf/x86/pebs: add workaround for broken OVFL status on HSW perf/x86/pebs: add proper PEBS constraints for Broadwell arch/x86/events/intel/core.c | 12 +++++++++++- arch/x86/events/intel/ds.c | 24 ++++++++++++++++++++++++ arch/x86/include/asm/perf_event.h | 1 + 3 files changed, 36 insertions(+), 1 deletion(-) -- 2.5.0
