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