1 #ifndef QEMU_PCI_BUS_H 2 #define QEMU_PCI_BUS_H 3 4 #include "hw/pci/pci.h" 5 6 /* 7 * PCI Bus datastructures. 8 * 9 * Do not access the following members directly; 10 * use accessor functions in pci.h 11 */ 12 13 typedef struct PCIBusClass { 14 /*< private >*/ 15 BusClass parent_class; 16 /*< public >*/ 17 18 bool (*is_root)(PCIBus *bus); 19 int (*bus_num)(PCIBus *bus); 20 uint16_t (*numa_node)(PCIBus *bus); 21 bool (*allows_extended_config_space)(PCIBus *bus); 22 } PCIBusClass; 23 24 struct PCIBus { 25 BusState qbus; 26 PCIIOMMUFunc iommu_fn; 27 void *iommu_opaque; 28 uint8_t devfn_min; 29 uint32_t slot_reserved_mask; 30 pci_set_irq_fn set_irq; 31 pci_map_irq_fn map_irq; 32 pci_route_irq_fn route_intx_to_irq; 33 void *irq_opaque; 34 PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX]; 35 PCIDevice *parent_dev; 36 MemoryRegion *address_space_mem; 37 MemoryRegion *address_space_io; 38 39 QLIST_HEAD(, PCIBus) child; /* this will be replaced by qdev later */ 40 QLIST_ENTRY(PCIBus) sibling;/* this will be replaced by qdev later */ 41 42 /* The bus IRQ state is the logical OR of the connected devices. 43 Keep a count of the number of devices with raised IRQs. */ 44 int nirq; 45 int *irq_count; 46 47 Notifier machine_done; 48 }; 49 50 #endif /* QEMU_PCI_BUS_H */ 51