[5/5] bus: arm-ccn: Add missing event attribute exclusions for host/guest

Message ID 1471019156-5485-6-git-send-email-pawel.moll@arm.com
State New
Headers show

Commit Message

Pawel Moll Aug. 12, 2016, 4:25 p.m.
CCN PMUs have no knowledge into VM-related origins of the memory
traffic, therefore can't handle requests for host-only or guest-only
events. Add appropriate exclusions (they should have been there from
the beginning).

Signed-off-by: Pawel Moll <pawel.moll@arm.com>

---
 drivers/bus/arm-ccn.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
2.7.4


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diff --git a/drivers/bus/arm-ccn.c b/drivers/bus/arm-ccn.c
index e7c2321..f2e099b 100644
--- a/drivers/bus/arm-ccn.c
+++ b/drivers/bus/arm-ccn.c
@@ -744,7 +744,8 @@  static int arm_ccn_pmu_event_init(struct perf_event *event)
 
 	if (has_branch_stack(event) || event->attr.exclude_user ||
 			event->attr.exclude_kernel || event->attr.exclude_hv ||
-			event->attr.exclude_idle) {
+			event->attr.exclude_idle || event->attr.exclude_host ||
+			event->attr.exclude_guest) {
 		dev_warn(ccn->dev, "Can't exclude execution levels!\n");
 		return -EOPNOTSUPP;
 	}