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hw/pci: made pci_bus_is_root a PCIBusClass method

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Refactoring it as a method of PCIBusClass will allow
different implementations for subclasses.

Removed the assumption that the root bus does not
have a parent device because is specific only
to the default class implementation.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Marcel Apfelbaum 2015-06-02 14:22:57 +03:00 • committed by Michael S. Tsirkin
parent 32d9ca15ba
commit ce6a28ee05
3 changed files with 24 additions and 3 deletions
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2
include/hw/pci/pci.h
View file

@ -340,6 +340,8 @@ typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);
#define TYPE_PCI_BUS "PCI"
#define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
#define PCI_BUS_CLASS(klass) OBJECT_CLASS_CHECK(PCIBusClass, (klass), TYPE_PCI_BUS)
#define PCI_BUS_GET_CLASS(obj) OBJECT_GET_CLASS(PCIBusClass, (obj), TYPE_PCI_BUS)
#define TYPE_PCIE_BUS "PCIE"
bool pci_bus_is_express(PCIBus *bus);

8
include/hw/pci/pci_bus.h
View file

@ -8,6 +8,14 @@
* use accessor functions in pci.h, pci_bridge.h
*/
typedef struct PCIBusClass {
/*< private >*/
BusClass parent_class;
/*< public >*/
bool (*is_root)(PCIBus *bus);
} PCIBusClass;
struct PCIBus {
BusState qbus;
PCIIOMMUFunc iommu_fn;