Read perf counters of a specific userspace process from the kernel

Read perf counters of a specific userspace process from the kernel

[Musa Ünal]

Hello all,
I'm using perf to measure tlb misses of an userspace process. For my
research,  i have a syscall handler at the kernel and when a system
call comes I want to read specific userspace processes misses from
it's pid. (I don't want to use strace). I examined the task_struct and
saw a variable named perf_event_ctxp. I wonder if it would be possible
for me to read the miss numbers from here. Or do you have any idea
where I can read the counter values specific to a process on the
kernel side (started with perf).
Thanks