diff options
author | Anthony Liguori <aliguori@us.ibm.com> | 2012-12-19 17:15:39 -0600 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2012-12-19 17:15:39 -0600 |
commit | 27dd7730582be85c7d4f680f5f71146629809c86 (patch) | |
tree | 3a36db2e407711ed222de28b839744db48a75059 /hw/pci/pci_bus.h | |
parent | 914606d26e654d4c01bd5186f4d05e3fd445e219 (diff) | |
parent | ec5e016c9a68588bd01be387416923c7dcafb951 (diff) |
Merge remote-tracking branch 'bonzini/header-dirs' into staging
* bonzini/header-dirs: (45 commits)
janitor: move remaining public headers to include/
hw: move executable format header files to hw/
fpu: move public header file to include/fpu
softmmu: move remaining include files to include/ subdirectories
softmmu: move include files to include/sysemu/
misc: move include files to include/qemu/
qom: move include files to include/qom/
migration: move include files to include/migration/
monitor: move include files to include/monitor/
exec: move include files to include/exec/
block: move include files to include/block/
qapi: move include files to include/qobject/
janitor: add guards to headers
qapi: make struct Visitor opaque
qapi: remove qapi/qapi-types-core.h
qapi: move inclusions of qemu-common.h from headers to .c files
ui: move files to ui/ and include/ui/
qemu-ga: move qemu-ga files to qga/
net: reorganize headers
net: move net.c to net/
...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/pci/pci_bus.h')
-rw-r--r-- | hw/pci/pci_bus.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/hw/pci/pci_bus.h b/hw/pci/pci_bus.h new file mode 100644 index 0000000000..f905b9e11e --- /dev/null +++ b/hw/pci/pci_bus.h @@ -0,0 +1,74 @@ +#ifndef QEMU_PCI_BUS_H +#define QEMU_PCI_BUS_H + +/* + * PCI Bus and Bridge datastructures. + * + * Do not access the following members directly; + * use accessor functions 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; +}; + +typedef struct PCIBridgeWindows PCIBridgeWindows; + +/* + * Aliases for each of the address space windows that the bridge + * can forward. Mapped into the bridge's parent's address space, + * as subregions. + */ +struct PCIBridgeWindows { + MemoryRegion alias_pref_mem; + MemoryRegion alias_mem; + MemoryRegion alias_io; +}; + +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; + + PCIBridgeWindows *windows; + + pci_map_irq_fn map_irq; + const char *bus_name; +}; + +#endif /* QEMU_PCI_BUS_H */ |