Archipelago » qemu

#ifndef QEMU_PCI_INTERNALS_H

#define QEMU_PCI_INTERNALS_H

/*

 * This header files is private to pci.c and pci_bridge.c

 * So following structures are opaque to others and shouldn't be

 * accessed.

 *

 * For pci-to-pci bridge needs to include this header file to embed

 * PCIBridge in its structure or to get sizeof(PCIBridge),

 * However, they shouldn't access those following members directly.

 * Use accessor function in pci.h, pci_bridge.h

 */

#define TYPE_PCI_BUS "PCI"

#define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)

struct PCIBus {

    BusState qbus;

    PCIDMAContextFunc dma_context_fn;

    void *dma_context_opaque;

    uint8_t devfn_min;

    pci_set_irq_fn set_irq;

    pci_map_irq_fn map_irq;

    pci_route_irq_fn route_intx_to_irq;

    pci_hotplug_fn hotplug;

    DeviceState *hotplug_qdev;

    void *irq_opaque;

    PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX];

    PCIDevice *parent_dev;

    MemoryRegion *address_space_mem;

    MemoryRegion *address_space_io;

    QLIST_HEAD(, PCIBus) child; /* this will be replaced by qdev later */

    QLIST_ENTRY(PCIBus) sibling;/* this will be replaced by qdev later */

    /* The bus IRQ state is the logical OR of the connected devices.

       Keep a count of the number of devices with raised IRQs.  */

    int nirq;

    int *irq_count;

};

struct PCIBridge {

    PCIDevice dev;

    /* private member */

    PCIBus sec_bus;

    /*

     * Memory regions for the bridge's address spaces.  These regions are not

     * directly added to system_memory/system_io or its descendants.

     * Bridge's secondary bus points to these, so that devices

     * under the bridge see these regions as its address spaces.

     * The regions are as large as the entire address space -

     * they don't take into account any windows.

     */

    MemoryRegion address_space_mem;

    MemoryRegion address_space_io;

    /*

     * Aliases for each of the address space windows that the bridge

     * can forward. Mapped into the bridge's parent's address space,

     * as subregions.

     */

    MemoryRegion alias_pref_mem;

    MemoryRegion alias_mem;

    MemoryRegion alias_io;

    pci_map_irq_fn map_irq;

    const char *bus_name;

};

#endif /* QEMU_PCI_INTERNALS_H */