1 /* 2 * Virtio balloon 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 * Contributions after 2012-01-13 are licensed under the terms of the 12 * GNU GPL, version 2 or (at your option) any later version. 13 */ 14 15 #include "qemu/osdep.h" 16 17 #include "virtio-pci.h" 18 #include "hw/qdev-properties.h" 19 #include "hw/virtio/virtio-balloon.h" 20 #include "qapi/error.h" 21 #include "qemu/module.h" 22 23 typedef struct VirtIOBalloonPCI VirtIOBalloonPCI; 24 25 /* 26 * virtio-balloon-pci: This extends VirtioPCIProxy. 27 */ 28 #define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci-base" 29 #define VIRTIO_BALLOON_PCI(obj) \ 30 OBJECT_CHECK(VirtIOBalloonPCI, (obj), TYPE_VIRTIO_BALLOON_PCI) 31 32 struct VirtIOBalloonPCI { 33 VirtIOPCIProxy parent_obj; 34 VirtIOBalloon vdev; 35 }; 36 static Property virtio_balloon_pci_properties[] = { 37 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), 38 DEFINE_PROP_END_OF_LIST(), 39 }; 40 41 static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 42 { 43 VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); 44 DeviceState *vdev = DEVICE(&dev->vdev); 45 46 if (vpci_dev->class_code != PCI_CLASS_OTHERS && 47 vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ 48 vpci_dev->class_code = PCI_CLASS_OTHERS; 49 } 50 51 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 52 } 53 54 static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) 55 { 56 DeviceClass *dc = DEVICE_CLASS(klass); 57 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 58 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 59 k->realize = virtio_balloon_pci_realize; 60 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 61 device_class_set_props(dc, virtio_balloon_pci_properties); 62 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 63 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; 64 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 65 pcidev_k->class_id = PCI_CLASS_OTHERS; 66 } 67 68 static void virtio_balloon_pci_instance_init(Object *obj) 69 { 70 VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); 71 72 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 73 TYPE_VIRTIO_BALLOON); 74 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 75 "guest-stats"); 76 object_property_add_alias(obj, "guest-stats-polling-interval", 77 OBJECT(&dev->vdev), 78 "guest-stats-polling-interval"); 79 } 80 81 static const VirtioPCIDeviceTypeInfo virtio_balloon_pci_info = { 82 .base_name = TYPE_VIRTIO_BALLOON_PCI, 83 .generic_name = "virtio-balloon-pci", 84 .transitional_name = "virtio-balloon-pci-transitional", 85 .non_transitional_name = "virtio-balloon-pci-non-transitional", 86 .instance_size = sizeof(VirtIOBalloonPCI), 87 .instance_init = virtio_balloon_pci_instance_init, 88 .class_init = virtio_balloon_pci_class_init, 89 }; 90 91 static void virtio_balloon_pci_register(void) 92 { 93 virtio_pci_types_register(&virtio_balloon_pci_info); 94 } 95 96 type_init(virtio_balloon_pci_register) 97