projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| ea7af5db JQ |
1 | /* |
| 2 | * Virtio blk 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 | ||
| 20 | #include "hw/virtio/virtio-blk.h" | |
| 21 | #include "virtio-pci.h" | |
| 22 | #include "qapi/error.h" | |
| 23 | ||
| 24 | typedef struct VirtIOBlkPCI VirtIOBlkPCI; | |
| 25 | ||
| 26 | /* | |
| 27 | * virtio-blk-pci: This extends VirtioPCIProxy. | |
| 28 | */ | |
| 29 | #define TYPE_VIRTIO_BLK_PCI "virtio-blk-pci-base" | |
| 30 | #define VIRTIO_BLK_PCI(obj) \ | |
| 31 | OBJECT_CHECK(VirtIOBlkPCI, (obj), TYPE_VIRTIO_BLK_PCI) | |
| 32 | ||
| 33 | struct VirtIOBlkPCI { | |
| 34 | VirtIOPCIProxy parent_obj; | |
| 35 | VirtIOBlock vdev; | |
| 36 | }; | |
| 37 | ||
| 38 | static Property virtio_blk_pci_properties[] = { | |
| 39 | DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), | |
| 40 | DEFINE_PROP_BIT("ioeventfd", VirtIOPCIProxy, flags, | |
| 41 | VIRTIO_PCI_FLAG_USE_IOEVENTFD_BIT, true), | |
| 42 | DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, | |
| 43 | DEV_NVECTORS_UNSPECIFIED), | |
| 44 | DEFINE_PROP_END_OF_LIST(), | |
| 45 | }; | |
| 46 | ||
| 47 | static void virtio_blk_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | |
| 48 | { | |
| 49 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(vpci_dev); | |
| 50 | DeviceState *vdev = DEVICE(&dev->vdev); | |
| 51 | ||
| 52 | if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { | |
| 53 | vpci_dev->nvectors = dev->vdev.conf.num_queues + 1; | |
| 54 | } | |
| 55 | ||
| 56 | qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); | |
| 57 | object_property_set_bool(OBJECT(vdev), true, "realized", errp); | |
| 58 | } | |
| 59 | ||
| 60 | static void virtio_blk_pci_class_init(ObjectClass *klass, void *data) | |
| 61 | { | |
| 62 | DeviceClass *dc = DEVICE_CLASS(klass); | |
| 63 | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | |
| 64 | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | |
| 65 | ||
| 66 | set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); | |
| 67 | dc->props = virtio_blk_pci_properties; | |
| 68 | k->realize = virtio_blk_pci_realize; | |
| 69 | pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | |
| 70 | pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BLOCK; | |
| 71 | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | |
| 72 | pcidev_k->class_id = PCI_CLASS_STORAGE_SCSI; | |
| 73 | } | |
| 74 | ||
| 75 | static void virtio_blk_pci_instance_init(Object *obj) | |
| 76 | { | |
| 77 | VirtIOBlkPCI *dev = VIRTIO_BLK_PCI(obj); | |
| 78 | ||
| 79 | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | |
| 80 | TYPE_VIRTIO_BLK); | |
| 81 | object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), | |
| 82 | "bootindex", &error_abort); | |
| 83 | } | |
| 84 | ||
| 85 | static const VirtioPCIDeviceTypeInfo virtio_blk_pci_info = { | |
| 86 | .base_name = TYPE_VIRTIO_BLK_PCI, | |
| 87 | .generic_name = "virtio-blk-pci", | |
| 88 | .transitional_name = "virtio-blk-pci-transitional", | |
| 89 | .non_transitional_name = "virtio-blk-pci-non-transitional", | |
| 90 | .instance_size = sizeof(VirtIOBlkPCI), | |
| 91 | .instance_init = virtio_blk_pci_instance_init, | |
| 92 | .class_init = virtio_blk_pci_class_init, | |
| 93 | }; | |
| 94 | ||
| 95 | static void virtio_blk_pci_register(void) | |
| 96 | { | |
| 97 | virtio_pci_types_register(&virtio_blk_pci_info); | |
| 98 | } | |
| 99 | ||
| 100 | type_init(virtio_blk_pci_register) |