projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| f386df17 JQ |
1 | /* |
| 2 | * Virtio serial PCI Bindings | |
| 3 | * | |
| 4 | * Copyright IBM, Corp. 2007 | |
| 5 | * Copyright (c) 2009 CodeSourcery | |
| 6 | * | |
| 7 | * Authors: | |
| 8 | * Anthony Liguori <[email protected]> | |
| 9 | * Paul Brook <[email protected]> | |
| 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 | * Contributions after 2012-01-13 are licensed under the terms of the | |
| 15 | * GNU GPL, version 2 or (at your option) any later version. | |
| 16 | */ | |
| 17 | ||
| 18 | #include "qemu/osdep.h" | |
| 19 | ||
| a27bd6c7 | 20 | #include "hw/qdev-properties.h" |
| f386df17 | 21 | #include "hw/virtio/virtio-serial.h" |
| 0b8fa32f | 22 | #include "qemu/module.h" |
| f386df17 JQ |
23 | #include "virtio-pci.h" |
| 24 | ||
| 25 | typedef struct VirtIOSerialPCI VirtIOSerialPCI; | |
| 26 | ||
| 27 | /* | |
| 28 | * virtio-serial-pci: This extends VirtioPCIProxy. | |
| 29 | */ | |
| 30 | #define TYPE_VIRTIO_SERIAL_PCI "virtio-serial-pci-base" | |
| 31 | #define VIRTIO_SERIAL_PCI(obj) \ | |
| 32 | OBJECT_CHECK(VirtIOSerialPCI, (obj), TYPE_VIRTIO_SERIAL_PCI) | |
| 33 | ||
| 34 | struct VirtIOSerialPCI { | |
| 35 | VirtIOPCIProxy parent_obj; | |
| 36 | VirtIOSerial vdev; | |
| 37 | }; | |
| 38 | ||
| 39 | static void virtio_serial_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
| 40 | { | |
| 41 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(vpci_dev); | |
| 42 | DeviceState *vdev = DEVICE(&dev->vdev); | |
| 43 | DeviceState *proxy = DEVICE(vpci_dev); | |
| 44 | char *bus_name; | |
| 45 | ||
| 46 | if (vpci_dev->class_code != PCI_CLASS_COMMUNICATION_OTHER && | |
| 47 | vpci_dev->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */ | |
| 48 | vpci_dev->class_code != PCI_CLASS_OTHERS) { /* qemu-kvm */ | |
| 49 | vpci_dev->class_code = PCI_CLASS_COMMUNICATION_OTHER; | |
| 50 | } | |
| 51 | ||
| 52 | /* backwards-compatibility with machines that were created with | |
| 53 | DEV_NVECTORS_UNSPECIFIED */ | |
| 54 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
| 55 | vpci_dev->nvectors = dev->vdev.serial.max_virtserial_ports + 1; | |
| 56 | } | |
| 57 | ||
| 58 | /* | |
| 59 | * For command line compatibility, this sets the virtio-serial-device bus | |
| 60 | * name as before. | |
| 61 | */ | |
| 62 | if (proxy->id) { | |
| 63 | bus_name = g_strdup_printf("%s.0", proxy->id); | |
| 64 | virtio_device_set_child_bus_name(VIRTIO_DEVICE(vdev), bus_name); | |
| 65 | g_free(bus_name); | |
| 66 | } | |
| 67 | ||
| 68 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
| 69 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
| 70 | } | |
| 71 | ||
| 72 | static Property virtio_serial_pci_properties[] = { | |
| 73 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
| 74 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
| 75 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2), | |
| 76 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), | |
| 77 | DEFINE_PROP_END_OF_LIST(), | |
| 78 | }; | |
| 79 | ||
| 80 | static void virtio_serial_pci_class_init(ObjectClass *klass, void *data) | |
| 81 | { | |
| 82 | DeviceClass *dc = DEVICE_CLASS(klass); | |
| 83 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
| 84 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
| 85 | k->realize = virtio_serial_pci_realize; | |
| 86 | set_bit(DEVICE_CATEGORY_INPUT, dc->categories); | |
| 87 | dc->props = virtio_serial_pci_properties; | |
| 88 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
| 89 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_CONSOLE; | |
| 90 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
| 91 | pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | |
| 92 | } | |
| 93 | ||
| 94 | static void virtio_serial_pci_instance_init(Object *obj) | |
| 95 | { | |
| 96 | VirtIOSerialPCI *dev = VIRTIO_SERIAL_PCI(obj); | |
| 97 | ||
| 98 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
| 99 | TYPE_VIRTIO_SERIAL); | |
| 100 | } | |
| 101 | ||
| 102 | static const VirtioPCIDeviceTypeInfo virtio_serial_pci_info = { | |
| 103 | .base_name = TYPE_VIRTIO_SERIAL_PCI, | |
| 104 | .generic_name = "virtio-serial-pci", | |
| 105 | .transitional_name = "virtio-serial-pci-transitional", | |
| 106 | .non_transitional_name = "virtio-serial-pci-non-transitional", | |
| 107 | .instance_size = sizeof(VirtIOSerialPCI), | |
| 108 | .instance_init = virtio_serial_pci_instance_init, | |
| 109 | .class_init = virtio_serial_pci_class_init, | |
| 110 | }; | |
| 111 | ||
| 112 | static void virtio_serial_pci_register(void) | |
| 113 | { | |
| 114 | virtio_pci_types_register(&virtio_serial_pci_info); | |
| 115 | } | |
| 116 | ||
| 117 | type_init(virtio_serial_pci_register) |