From mboxrd@z Thu Jan 1 00:00:00 1970 From: pawel.moll@arm.com (Pawel Moll) Date: Fri, 12 Aug 2016 17:25:56 +0100 Subject: [PATCH 5/5] bus: arm-ccn: Add missing event attribute exclusions for host/guest In-Reply-To: <1471019156-5485-1-git-send-email-pawel.moll@arm.com> References: <1471019156-5485-1-git-send-email-pawel.moll@arm.com> Message-ID: <1471019156-5485-6-git-send-email-pawel.moll@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- drivers/bus/arm-ccn.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) 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; } -- 2.7.4