root / hw / pci_internals.h @ 0200db65
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1 | cfb0a50a | Isaku Yamahata | #ifndef QEMU_PCI_INTERNALS_H
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2 | cfb0a50a | Isaku Yamahata | #define QEMU_PCI_INTERNALS_H
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3 | cfb0a50a | Isaku Yamahata | |
4 | cfb0a50a | Isaku Yamahata | /*
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5 | cfb0a50a | Isaku Yamahata | * This header files is private to pci.c and pci_bridge.c
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6 | cfb0a50a | Isaku Yamahata | * So following structures are opaque to others and shouldn't be
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7 | cfb0a50a | Isaku Yamahata | * accessed.
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8 | 68f79994 | Isaku Yamahata | *
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9 | 68f79994 | Isaku Yamahata | * For pci-to-pci bridge needs to include this header file to embed
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10 | 68f79994 | Isaku Yamahata | * PCIBridge in its structure or to get sizeof(PCIBridge),
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11 | 68f79994 | Isaku Yamahata | * However, they shouldn't access those following members directly.
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12 | 68f79994 | Isaku Yamahata | * Use accessor function in pci.h, pci_bridge.h
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13 | cfb0a50a | Isaku Yamahata | */
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14 | cfb0a50a | Isaku Yamahata | |
15 | cfb0a50a | Isaku Yamahata | extern struct BusInfo pci_bus_info; |
16 | cfb0a50a | Isaku Yamahata | |
17 | cfb0a50a | Isaku Yamahata | struct PCIBus {
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18 | cfb0a50a | Isaku Yamahata | BusState qbus; |
19 | 6f3279b5 | Isaku Yamahata | uint8_t devfn_min; |
20 | cfb0a50a | Isaku Yamahata | pci_set_irq_fn set_irq; |
21 | cfb0a50a | Isaku Yamahata | pci_map_irq_fn map_irq; |
22 | cfb0a50a | Isaku Yamahata | pci_hotplug_fn hotplug; |
23 | cfb0a50a | Isaku Yamahata | DeviceState *hotplug_qdev; |
24 | cfb0a50a | Isaku Yamahata | void *irq_opaque;
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25 | 90a20dbb | Isaku Yamahata | PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX]; |
26 | cfb0a50a | Isaku Yamahata | PCIDevice *parent_dev; |
27 | 5968eca3 | Avi Kivity | MemoryRegion *address_space_mem; |
28 | 5968eca3 | Avi Kivity | MemoryRegion *address_space_io; |
29 | cfb0a50a | Isaku Yamahata | |
30 | cfb0a50a | Isaku Yamahata | QLIST_HEAD(, PCIBus) child; /* this will be replaced by qdev later */
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31 | cfb0a50a | Isaku Yamahata | QLIST_ENTRY(PCIBus) sibling;/* this will be replaced by qdev later */
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32 | cfb0a50a | Isaku Yamahata | |
33 | cfb0a50a | Isaku Yamahata | /* The bus IRQ state is the logical OR of the connected devices.
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34 | cfb0a50a | Isaku Yamahata | Keep a count of the number of devices with raised IRQs. */
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35 | cfb0a50a | Isaku Yamahata | int nirq;
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36 | cfb0a50a | Isaku Yamahata | int *irq_count;
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37 | cfb0a50a | Isaku Yamahata | }; |
38 | cfb0a50a | Isaku Yamahata | |
39 | 68f79994 | Isaku Yamahata | struct PCIBridge {
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40 | cfb0a50a | Isaku Yamahata | PCIDevice dev; |
41 | 68f79994 | Isaku Yamahata | |
42 | 68f79994 | Isaku Yamahata | /* private member */
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43 | 7e98e3af | Isaku Yamahata | PCIBus sec_bus; |
44 | 336411ca | Michael S. Tsirkin | /*
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45 | 336411ca | Michael S. Tsirkin | * Memory regions for the bridge's address spaces. These regions are not
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46 | 336411ca | Michael S. Tsirkin | * directly added to system_memory/system_io or its descendants.
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47 | 336411ca | Michael S. Tsirkin | * Bridge's secondary bus points to these, so that devices
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48 | 336411ca | Michael S. Tsirkin | * under the bridge see these regions as its address spaces.
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49 | 336411ca | Michael S. Tsirkin | * The regions are as large as the entire address space -
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50 | 336411ca | Michael S. Tsirkin | * they don't take into account any windows.
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51 | 336411ca | Michael S. Tsirkin | */
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52 | 336411ca | Michael S. Tsirkin | MemoryRegion address_space_mem; |
53 | 336411ca | Michael S. Tsirkin | MemoryRegion address_space_io; |
54 | 336411ca | Michael S. Tsirkin | /*
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55 | 336411ca | Michael S. Tsirkin | * Aliases for each of the address space windows that the bridge
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56 | 336411ca | Michael S. Tsirkin | * can forward. Mapped into the bridge's parent's address space,
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57 | 336411ca | Michael S. Tsirkin | * as subregions.
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58 | 336411ca | Michael S. Tsirkin | */
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59 | 7df32ca0 | Michael S. Tsirkin | MemoryRegion alias_pref_mem; |
60 | 7df32ca0 | Michael S. Tsirkin | MemoryRegion alias_mem; |
61 | 7df32ca0 | Michael S. Tsirkin | MemoryRegion alias_io; |
62 | 68f79994 | Isaku Yamahata | pci_map_irq_fn map_irq; |
63 | 68f79994 | Isaku Yamahata | const char *bus_name; |
64 | 68f79994 | Isaku Yamahata | }; |
65 | cfb0a50a | Isaku Yamahata | |
66 | cfb0a50a | Isaku Yamahata | #endif /* QEMU_PCI_INTERNALS_H */ |