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 #include "qom/object.h" 23 24 typedef struct VirtIOBalloonPCI VirtIOBalloonPCI; 25 26 /* 27 * virtio-balloon-pci: This extends VirtioPCIProxy. 28 */ 29 #define TYPE_VIRTIO_BALLOON_PCI "virtio-balloon-pci-base" 30 DECLARE_INSTANCE_CHECKER(VirtIOBalloonPCI, VIRTIO_BALLOON_PCI, 31 TYPE_VIRTIO_BALLOON_PCI) 32 33 struct VirtIOBalloonPCI { 34 VirtIOPCIProxy parent_obj; 35 VirtIOBalloon vdev; 36 }; 37 static Property virtio_balloon_pci_properties[] = { 38 DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0), 39 DEFINE_PROP_END_OF_LIST(), 40 }; 41 42 static void virtio_balloon_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) 43 { 44 VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(vpci_dev); 45 DeviceState *vdev = DEVICE(&dev->vdev); 46 47 if (vpci_dev->class_code != PCI_CLASS_OTHERS && 48 vpci_dev->class_code != PCI_CLASS_MEMORY_RAM) { /* qemu < 1.1 */ 49 vpci_dev->class_code = PCI_CLASS_OTHERS; 50 } 51 52 qdev_realize(vdev, BUS(&vpci_dev->bus), errp); 53 } 54 55 static void virtio_balloon_pci_class_init(ObjectClass *klass, void *data) 56 { 57 DeviceClass *dc = DEVICE_CLASS(klass); 58 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); 59 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); 60 k->realize = virtio_balloon_pci_realize; 61 set_bit(DEVICE_CATEGORY_MISC, dc->categories); 62 device_class_set_props(dc, virtio_balloon_pci_properties); 63 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; 64 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_BALLOON; 65 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; 66 pcidev_k->class_id = PCI_CLASS_OTHERS; 67 } 68 69 static void virtio_balloon_pci_instance_init(Object *obj) 70 { 71 VirtIOBalloonPCI *dev = VIRTIO_BALLOON_PCI(obj); 72 73 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), 74 TYPE_VIRTIO_BALLOON); 75 object_property_add_alias(obj, "guest-stats", OBJECT(&dev->vdev), 76 "guest-stats"); 77 object_property_add_alias(obj, "guest-stats-polling-interval", 78 OBJECT(&dev->vdev), 79 "guest-stats-polling-interval"); 80 } 81 82 static const VirtioPCIDeviceTypeInfo virtio_balloon_pci_info = { 83 .base_name = TYPE_VIRTIO_BALLOON_PCI, 84 .generic_name = "virtio-balloon-pci", 85 .transitional_name = "virtio-balloon-pci-transitional", 86 .non_transitional_name = "virtio-balloon-pci-non-transitional", 87 .instance_size = sizeof(VirtIOBalloonPCI), 88 .instance_init = virtio_balloon_pci_instance_init, 89 .class_init = virtio_balloon_pci_class_init, 90 }; 91 92 static void virtio_balloon_pci_register(void) 93 { 94 virtio_pci_types_register(&virtio_balloon_pci_info); 95 } 96 97 type_init(virtio_balloon_pci_register) 98