| Message ID | 1380176328-21320-14-git-send-email-aik@ozlabs.ru |
|---|---|
| State | New |
| Headers | show |
diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c index a2ccafa..c203646 100644 --- a/hw/intc/xics_kvm.c +++ b/hw/intc/xics_kvm.c @@ -441,6 +441,12 @@ static void xics_kvm_realize(DeviceState *dev, Error **errp) goto fail; } } + + kvm_kernel_irqchip = true; + kvm_irqfds_allowed = true; + kvm_msi_via_irqfd_allowed = true; + kvm_gsi_direct_mapping = true; + return; fail:
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> --- hw/intc/xics_kvm.c | 6 ++++++ 1 file changed, 6 insertions(+)