[PATCH 05/10] powerpc/pmu/fsl: add additional validation to event_init
From: Andrew Murray <hidden>
Date: 2018-11-16 10:24:42
Also in:
linux-alpha, linuxppc-dev, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
The fsl PMU driver doesn't support host/guest mode exclusion so let's report this when event_init is called with these exclusion flags set. Signed-off-by: Andrew Murray <redacted> --- arch/powerpc/perf/core-fsl-emb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-emb.c
index ba48584..b1cc9d1 100644
--- a/arch/powerpc/perf/core-fsl-emb.c
+++ b/arch/powerpc/perf/core-fsl-emb.c@@ -559,6 +559,8 @@ static int fsl_emb_pmu_event_init(struct perf_event *event) event->hw.config_base |= PMLCA_FCS; if (event->attr.exclude_idle) return -ENOTSUPP; + if (event->attr.exclude_host || event->attr.exclude_guest) + return -ENOTSUPP; event->hw.last_period = event->hw.sample_period; local64_set(&event->hw.period_left, event->hw.last_period);
--
2.7.4