forked from luck/tmp_suning_uos_patched
bus: arm-ccn: Add missing event attribute exclusions for host/guest
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. Added appropriate exclusions (they should have been there from the beginning). This required changing the error code returned, as the userspace tool only re-negotiates the options (exclude_guest is true by default) only for EINVAL. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
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@ -745,9 +745,10 @@ static int arm_ccn_pmu_event_init(struct perf_event *event)
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if (has_branch_stack(event) || event->attr.exclude_user ||
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event->attr.exclude_kernel || event->attr.exclude_hv ||
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event->attr.exclude_idle) {
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event->attr.exclude_idle || event->attr.exclude_host ||
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event->attr.exclude_guest) {
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dev_warn(ccn->dev, "Can't exclude execution levels!\n");
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return -EOPNOTSUPP;
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return -EINVAL;
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}
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if (event->cpu < 0) {
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