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The specific part of PCI BAR reprogramming that happens for a virtio PCI device is the update of the ioeventfds addresses KVM should listen to. This should not be triggered for every BAR reprogramming associated with the virtio device since a virtio PCI device might have multiple BARs. The update of the ioeventfds addresses should only happen when the BAR related to those addresses is being moved. Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>