[PATCH V3 0/2] Improvement and fixes for BHRB

(1) The first patch fixes a situation like this Before patch:- ./perf record -j any -e branch-misses:k ls Error: The sys_perf_event_open() syscall returned with 95 (Operation not supported) for event (branch-misses:k). /bin/dmesg may provide additional information. No CONFIG_PERF_EV

[PATCH V3 0/2] Improvement and fixes for BHRB

(1) The first patch fixes a situation like this Before patch:- ./perf record -j any -e branch-misses:k ls Error: The sys_perf_event_open() syscall returned with 95 (Operation not supported) for event (branch-misses:k). /bin/dmesg may provide additional information. No CONFIG_PERF_EV