qemu/include/hw/pci/pci_bus.h
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   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
  13typedef 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} PCIBusClass;
  22
  23struct PCIBus {
  24    BusState qbus;
  25    PCIIOMMUFunc iommu_fn;
  26    void *iommu_opaque;
  27    uint8_t devfn_min;
  28    uint32_t slot_reserved_mask;
  29    pci_set_irq_fn set_irq;
  30    pci_map_irq_fn map_irq;
  31    pci_route_irq_fn route_intx_to_irq;
  32    void *irq_opaque;
  33    PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX];
  34    PCIDevice *parent_dev;
  35    MemoryRegion *address_space_mem;
  36    MemoryRegion *address_space_io;
  37
  38    QLIST_HEAD(, PCIBus) child; /* this will be replaced by qdev later */
  39    QLIST_ENTRY(PCIBus) sibling;/* this will be replaced by qdev later */
  40
  41    /* The bus IRQ state is the logical OR of the connected devices.
  42       Keep a count of the number of devices with raised IRQs.  */
  43    int nirq;
  44    int *irq_count;
  45
  46    Notifier machine_done;
  47};
  48
  49#endif /* QEMU_PCI_BUS_H */
  50