This enables IRQFD support for sPAPR. The feature decreases the latency
of interrupt handling.
To enable IRQFD for MSI, this sets kvm_gsi_direct_mapping to true which
enables direct MSI mapping.
To enable IRQFD for LSI (level triggered INTx interrupts), a PCI host bus
callback is required. The patch for that is coming next.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Alexander Graf <agraf@suse.de>
goto fail;
}
}
+
+ kvm_kernel_irqchip = true;
+ kvm_irqfds_allowed = true;
+ kvm_msi_via_irqfd_allowed = true;
+ kvm_gsi_direct_mapping = true;
+
return;
fail: