Plumb mediated PMU capability to x86_pmu_cap in order to let any kernel entity such as KVM know that host PMU support mediated PMU mode and has the implementation.
Signed-off-by: Mingwei Zhang mizhang@google.com --- arch/x86/events/core.c | 1 + arch/x86/include/asm/perf_event.h | 1 + 2 files changed, 2 insertions(+)
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 7c852ee3e217..7a792486d9fb 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -3112,6 +3112,7 @@ void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap) cap->events_mask = (unsigned int)x86_pmu.events_maskl; cap->events_mask_len = x86_pmu.events_mask_len; cap->pebs_ept = x86_pmu.pebs_ept; + cap->mediated = !!(pmu.capabilities & PERF_PMU_CAP_MEDIATED_VPMU); } EXPORT_SYMBOL_GPL(perf_get_x86_pmu_capability);
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index 0ba8d20f2d1d..3aee76f3316c 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -285,6 +285,7 @@ struct x86_pmu_capability { unsigned int events_mask; int events_mask_len; unsigned int pebs_ept :1; + unsigned int mediated :1; };
/*