From: Michael S. Tsirkin <[email protected]> Irqfd sets level for interrupt to 1 and then to 0. For MSI, check level so that a single message is sent.
Signed-off-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Avi Kivity <[email protected]> diff --git a/virt/kvm/irq_comm.c b/virt/kvm/irq_comm.c index c380bf0..7af18b8 100644 --- a/virt/kvm/irq_comm.c +++ b/virt/kvm/irq_comm.c @@ -139,7 +139,9 @@ int kvm_set_irq(struct kvm *kvm, int irq_source_id, int irq, int level) else clear_bit(irq_source_id, irq_state); sig_level = !!(*irq_state); - } else /* Deal with MSI/MSI-X */ + } else if (!level) + return ret; + else /* Deal with MSI/MSI-X */ sig_level = 1; /* Not possible to detect if the guest uses the PIC or the -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
