[PATCH v4 13/38] perf/x86/core: Plumb mediated PMU capability from x86_pmu to x86_pmu_cap

[Mingwei Zhang]

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 <mizh...@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;
 };
 
 /*
-- 
2.49.0.395.g12beb8f557-goog