diff options
Diffstat (limited to 'arch/s390/kernel/perf_cpum_sf.c')
| -rw-r--r-- | arch/s390/kernel/perf_cpum_sf.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index b973972f6ba5..3d8da1e742c2 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1019,11 +1019,13 @@ static int perf_push_sample(struct perf_event *event, struct sf_raw_sample *sfr) break; } - /* The host-program-parameter (hpp) contains the pid of - * the CPU thread as set by sie64a() in entry.S. - * If non-zero assume a guest sample. + /* + * A non-zero guest program parameter indicates a guest + * sample. + * Note that some early samples might be misaccounted to + * the host. */ - if (sfr->basic.hpp) + if (sfr->basic.gpp) sde_regs->in_guest = 1; overflow = 0; |