target/mips: Remove XBurst Media eXtension Unit dead code
[qemu/ar7.git] / hw / virtio / virtio-mem-pci.c
blobfa5395cd88577964fba445c68f2d025b504f5544
1 /*
2 * Virtio MEM PCI device
4 * Copyright (C) 2020 Red Hat, Inc.
6 * Authors:
7 * David Hildenbrand <david@redhat.com>
9 * This work is licensed under the terms of the GNU GPL, version 2.
10 * See the COPYING file in the top-level directory.
13 #include "qemu/osdep.h"
14 #include "virtio-mem-pci.h"
15 #include "hw/mem/memory-device.h"
16 #include "qapi/error.h"
17 #include "qapi/qapi-events-machine.h"
18 #include "qapi/qapi-events-misc.h"
20 static void virtio_mem_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
22 VirtIOMEMPCI *mem_pci = VIRTIO_MEM_PCI(vpci_dev);
23 DeviceState *vdev = DEVICE(&mem_pci->vdev);
25 virtio_pci_force_virtio_1(vpci_dev);
26 qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
29 static void virtio_mem_pci_set_addr(MemoryDeviceState *md, uint64_t addr,
30 Error **errp)
32 object_property_set_uint(OBJECT(md), VIRTIO_MEM_ADDR_PROP, addr, errp);
35 static uint64_t virtio_mem_pci_get_addr(const MemoryDeviceState *md)
37 return object_property_get_uint(OBJECT(md), VIRTIO_MEM_ADDR_PROP,
38 &error_abort);
41 static MemoryRegion *virtio_mem_pci_get_memory_region(MemoryDeviceState *md,
42 Error **errp)
44 VirtIOMEMPCI *pci_mem = VIRTIO_MEM_PCI(md);
45 VirtIOMEM *vmem = VIRTIO_MEM(&pci_mem->vdev);
46 VirtIOMEMClass *vmc = VIRTIO_MEM_GET_CLASS(vmem);
48 return vmc->get_memory_region(vmem, errp);
51 static uint64_t virtio_mem_pci_get_plugged_size(const MemoryDeviceState *md,
52 Error **errp)
54 return object_property_get_uint(OBJECT(md), VIRTIO_MEM_SIZE_PROP,
55 errp);
58 static void virtio_mem_pci_fill_device_info(const MemoryDeviceState *md,
59 MemoryDeviceInfo *info)
61 VirtioMEMDeviceInfo *vi = g_new0(VirtioMEMDeviceInfo, 1);
62 VirtIOMEMPCI *pci_mem = VIRTIO_MEM_PCI(md);
63 VirtIOMEM *vmem = VIRTIO_MEM(&pci_mem->vdev);
64 VirtIOMEMClass *vpc = VIRTIO_MEM_GET_CLASS(vmem);
65 DeviceState *dev = DEVICE(md);
67 if (dev->id) {
68 vi->has_id = true;
69 vi->id = g_strdup(dev->id);
72 /* let the real device handle everything else */
73 vpc->fill_device_info(vmem, vi);
75 info->u.virtio_mem.data = vi;
76 info->type = MEMORY_DEVICE_INFO_KIND_VIRTIO_MEM;
79 static uint64_t virtio_mem_pci_get_min_alignment(const MemoryDeviceState *md)
81 return object_property_get_uint(OBJECT(md), VIRTIO_MEM_BLOCK_SIZE_PROP,
82 &error_abort);
85 static void virtio_mem_pci_size_change_notify(Notifier *notifier, void *data)
87 VirtIOMEMPCI *pci_mem = container_of(notifier, VirtIOMEMPCI,
88 size_change_notifier);
89 DeviceState *dev = DEVICE(pci_mem);
90 const uint64_t * const size_p = data;
91 const char *id = NULL;
93 if (dev->id) {
94 id = g_strdup(dev->id);
97 qapi_event_send_memory_device_size_change(!!id, id, *size_p);
100 static void virtio_mem_pci_class_init(ObjectClass *klass, void *data)
102 DeviceClass *dc = DEVICE_CLASS(klass);
103 VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
104 PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
105 MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(klass);
107 k->realize = virtio_mem_pci_realize;
108 set_bit(DEVICE_CATEGORY_MISC, dc->categories);
109 pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
110 pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_MEM;
111 pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
112 pcidev_k->class_id = PCI_CLASS_OTHERS;
114 mdc->get_addr = virtio_mem_pci_get_addr;
115 mdc->set_addr = virtio_mem_pci_set_addr;
116 mdc->get_plugged_size = virtio_mem_pci_get_plugged_size;
117 mdc->get_memory_region = virtio_mem_pci_get_memory_region;
118 mdc->fill_device_info = virtio_mem_pci_fill_device_info;
119 mdc->get_min_alignment = virtio_mem_pci_get_min_alignment;
122 static void virtio_mem_pci_instance_init(Object *obj)
124 VirtIOMEMPCI *dev = VIRTIO_MEM_PCI(obj);
125 VirtIOMEMClass *vmc;
126 VirtIOMEM *vmem;
128 virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
129 TYPE_VIRTIO_MEM);
131 dev->size_change_notifier.notify = virtio_mem_pci_size_change_notify;
132 vmem = VIRTIO_MEM(&dev->vdev);
133 vmc = VIRTIO_MEM_GET_CLASS(vmem);
135 * We never remove the notifier again, as we expect both devices to
136 * disappear at the same time.
138 vmc->add_size_change_notifier(vmem, &dev->size_change_notifier);
140 object_property_add_alias(obj, VIRTIO_MEM_BLOCK_SIZE_PROP,
141 OBJECT(&dev->vdev), VIRTIO_MEM_BLOCK_SIZE_PROP);
142 object_property_add_alias(obj, VIRTIO_MEM_SIZE_PROP, OBJECT(&dev->vdev),
143 VIRTIO_MEM_SIZE_PROP);
144 object_property_add_alias(obj, VIRTIO_MEM_REQUESTED_SIZE_PROP,
145 OBJECT(&dev->vdev),
146 VIRTIO_MEM_REQUESTED_SIZE_PROP);
149 static const VirtioPCIDeviceTypeInfo virtio_mem_pci_info = {
150 .base_name = TYPE_VIRTIO_MEM_PCI,
151 .generic_name = "virtio-mem-pci",
152 .instance_size = sizeof(VirtIOMEMPCI),
153 .instance_init = virtio_mem_pci_instance_init,
154 .class_init = virtio_mem_pci_class_init,
155 .interfaces = (InterfaceInfo[]) {
156 { TYPE_MEMORY_DEVICE },
161 static void virtio_mem_pci_register_types(void)
163 virtio_pci_types_register(&virtio_mem_pci_info);
165 type_init(virtio_mem_pci_register_types)