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9fe1ebeb AK |
1 | /* |
2 | * Virtio PCI Bindings | |
3 | * | |
4 | * Copyright IBM, Corp. 2007 | |
5 | * Copyright (c) 2009 CodeSourcery | |
6 | * | |
7 | * Authors: | |
8 | * Anthony Liguori <aliguori@us.ibm.com> | |
9 | * Paul Brook <paul@codesourcery.com> | |
10 | * | |
11 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
12 | * the COPYING file in the top-level directory. | |
13 | */ | |
14 | ||
15 | #ifndef QEMU_VIRTIO_PCI_H | |
16 | #define QEMU_VIRTIO_PCI_H | |
17 | ||
cf7c3f0c | 18 | #include "hw/pci/msi.h" |
83c9f4ca PB |
19 | #include "hw/virtio-blk.h" |
20 | #include "hw/virtio-net.h" | |
21 | #include "hw/virtio-rng.h" | |
22 | #include "hw/virtio-serial.h" | |
23 | #include "hw/virtio-scsi.h" | |
24 | #include "hw/virtio-bus.h" | |
25 | #include "hw/9pfs/virtio-9p-device.h" | |
0a2acf5e | 26 | |
085bccb7 FK |
27 | typedef struct VirtIOPCIProxy VirtIOPCIProxy; |
28 | ||
0a2acf5e FK |
29 | /* virtio-pci-bus */ |
30 | ||
31 | typedef struct VirtioBusState VirtioPCIBusState; | |
32 | typedef struct VirtioBusClass VirtioPCIBusClass; | |
33 | ||
34 | #define TYPE_VIRTIO_PCI_BUS "virtio-pci-bus" | |
35 | #define VIRTIO_PCI_BUS(obj) \ | |
36 | OBJECT_CHECK(VirtioPCIBusState, (obj), TYPE_VIRTIO_PCI_BUS) | |
37 | #define VIRTIO_PCI_BUS_GET_CLASS(obj) \ | |
38 | OBJECT_GET_CLASS(VirtioPCIBusClass, obj, TYPE_VIRTIO_PCI_BUS) | |
39 | #define VIRTIO_PCI_BUS_CLASS(klass) \ | |
40 | OBJECT_CLASS_CHECK(VirtioPCIBusClass, klass, TYPE_VIRTIO_PCI_BUS) | |
9fe1ebeb | 41 | |
5745e38a AK |
42 | /* Performance improves when virtqueue kick processing is decoupled from the |
43 | * vcpu thread using ioeventfd for some devices. */ | |
44 | #define VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT 1 | |
45 | #define VIRTIO_PCI_FLAG_USE_IOEVENTFD (1 << VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT) | |
46 | ||
7d37d351 | 47 | typedef struct { |
774345f9 | 48 | MSIMessage msg; |
7d37d351 JK |
49 | int virq; |
50 | unsigned int users; | |
51 | } VirtIOIRQFD; | |
52 | ||
085bccb7 FK |
53 | /* |
54 | * virtio-pci: This is the PCIDevice which has a virtio-pci-bus. | |
55 | */ | |
56 | #define TYPE_VIRTIO_PCI "virtio-pci" | |
57 | #define VIRTIO_PCI_GET_CLASS(obj) \ | |
58 | OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI) | |
59 | #define VIRTIO_PCI_CLASS(klass) \ | |
60 | OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI) | |
61 | #define VIRTIO_PCI(obj) \ | |
62 | OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI) | |
63 | ||
64 | typedef struct VirtioPCIClass { | |
65 | PCIDeviceClass parent_class; | |
66 | int (*init)(VirtIOPCIProxy *vpci_dev); | |
67 | } VirtioPCIClass; | |
68 | ||
69 | struct VirtIOPCIProxy { | |
9fe1ebeb AK |
70 | PCIDevice pci_dev; |
71 | VirtIODevice *vdev; | |
da146d0a | 72 | MemoryRegion bar; |
9fe1ebeb | 73 | uint32_t flags; |
9fe1ebeb AK |
74 | uint32_t class_code; |
75 | uint32_t nvectors; | |
12c5674b | 76 | VirtIOBlkConf blk; |
9fe1ebeb AK |
77 | NICConf nic; |
78 | uint32_t host_features; | |
7e6b14df | 79 | #ifdef CONFIG_VIRTFS |
9fe1ebeb AK |
80 | V9fsConf fsconf; |
81 | #endif | |
82 | virtio_serial_conf serial; | |
83 | virtio_net_conf net; | |
973abc7f | 84 | VirtIOSCSIConf scsi; |
16c915ba | 85 | VirtIORNGConf rng; |
9fe1ebeb AK |
86 | bool ioeventfd_disabled; |
87 | bool ioeventfd_started; | |
7d37d351 | 88 | VirtIOIRQFD *vector_irqfd; |
2d620f59 | 89 | int nvqs_with_notifiers; |
085bccb7 FK |
90 | VirtioBusState bus; |
91 | }; | |
9fe1ebeb | 92 | |
befeac45 | 93 | void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev); |
0a2acf5e | 94 | void virtio_pci_bus_new(VirtioBusState *bus, VirtIOPCIProxy *dev); |
befeac45 MT |
95 | |
96 | /* Virtio ABI version, if we increment this, we break the guest driver. */ | |
97 | #define VIRTIO_PCI_ABI_VERSION 0 | |
98 | ||
9fe1ebeb | 99 | #endif |