@@ -898,6 +898,12 @@ static void pci_set_irq(void *opaque, int irq_num, int level)
bus->set_irq(bus->irq_opaque, irq_num, bus->irq_count[irq_num] != 0);
}
+/* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
+int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin)
+{
+ return (pin + PCI_SLOT(pci_dev->devfn) - 1) % PCI_NUM_PINS;
+}
+
/***********************************************************/
/* monitor info on PCI */
@@ -268,6 +268,8 @@ int pci_device_load(PCIDevice *s, QEMUFile *f);
typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
+/* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
+int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin);
PCIBus *pci_register_bus(DeviceState *parent, const char *name,
pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
void *irq_opaque, int devfn_min, int nirq);
introduce pci_swizzle_map_irq_fn() for interrupt pin swizzle. PCI bridge swizzle is common logic, by introducing this function duplicated swizzle logic will be avoided later. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> --- hw/pci.c | 6 ++++++ hw/pci.h | 2 ++ 2 files changed, 8 insertions(+), 0 deletions(-)