From patchwork Tue Oct 2 19:21:54 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [3/6] pci: Helper function for testing if an INTx route changed From: Alex Williamson X-Patchwork-Id: 188640 Message-Id: <20121002192153.31100.60641.stgit@bling.home> To: mst@redhat.com, qemu-devel@nongnu.org Cc: jan.kiszka@siemens.com, alex.williamson@redhat.com Date: Tue, 02 Oct 2012 13:21:54 -0600 Signed-off-by: Alex Williamson --- hw/pci.c | 5 +++++ hw/pci.h | 1 + 2 files changed, 6 insertions(+) diff --git a/hw/pci.c b/hw/pci.c index 9cb0ad4..6adb3b7 100644 --- a/hw/pci.c +++ b/hw/pci.c @@ -1102,6 +1102,11 @@ PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin) return (PCIINTxRoute) { PCI_INTX_NOROUTE, -1 }; } +bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new) +{ + return old->mode != new->mode || old->irq != new->irq; +} + void pci_bus_fire_intx_routing_notifier(PCIBus *bus) { PCIDevice *dev; diff --git a/hw/pci.h b/hw/pci.h index ed1a372..14ebb57 100644 --- a/hw/pci.h +++ b/hw/pci.h @@ -325,6 +325,7 @@ PCIBus *pci_register_bus(DeviceState *parent, const char *name, uint8_t devfn_min, int nirq); void pci_bus_set_route_irq_fn(PCIBus *, pci_route_irq_fn); PCIINTxRoute pci_device_route_intx_to_irq(PCIDevice *dev, int pin); +bool pci_intx_route_changed(PCIINTxRoute *old, PCIINTxRoute *new); void pci_bus_fire_intx_routing_notifier(PCIBus *bus); void pci_device_set_intx_routing_notifier(PCIDevice *dev, PCIINTxRoutingNotifier notifier);