76c9fc56dd
At the moment we update the chain bitmap on type setting. This does not take into account the enable state of the odd register. Let's make sure a counter is never considered as chained if the high counter is disabled. We recompute the chain state on enable/disable and type changes. Also let create_perf_event() use the chain bitmap and not use kvm_pmu_idx_has_chain_evtype(). Suggested-by: Marc Zyngier <maz@kernel.org> Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20200124142535.29386-3-eric.auger@redhat.com |
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