|  | /* | 
|  | * Virtio PMEM PCI device | 
|  | * | 
|  | * Copyright (C) 2018-2019 Red Hat, Inc. | 
|  | * | 
|  | * Authors: | 
|  | *  Pankaj Gupta <pagupta@redhat.com> | 
|  | *  David Hildenbrand <david@redhat.com> | 
|  | * | 
|  | * This work is licensed under the terms of the GNU GPL, version 2. | 
|  | * See the COPYING file in the top-level directory. | 
|  | */ | 
|  |  | 
|  | #include "qemu/osdep.h" | 
|  |  | 
|  | #include "virtio-pmem-pci.h" | 
|  | #include "hw/mem/memory-device.h" | 
|  | #include "qapi/error.h" | 
|  |  | 
|  | static void virtio_pmem_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | 
|  | { | 
|  | VirtIOPMEMPCI *pmem_pci = VIRTIO_PMEM_PCI(vpci_dev); | 
|  | DeviceState *vdev = DEVICE(&pmem_pci->vdev); | 
|  |  | 
|  | virtio_pci_force_virtio_1(vpci_dev); | 
|  | qdev_realize(vdev, BUS(&vpci_dev->bus), errp); | 
|  | } | 
|  |  | 
|  | static void virtio_pmem_pci_set_addr(MemoryDeviceState *md, uint64_t addr, | 
|  | Error **errp) | 
|  | { | 
|  | object_property_set_uint(OBJECT(md), VIRTIO_PMEM_ADDR_PROP, addr, errp); | 
|  | } | 
|  |  | 
|  | static uint64_t virtio_pmem_pci_get_addr(const MemoryDeviceState *md) | 
|  | { | 
|  | return object_property_get_uint(OBJECT(md), VIRTIO_PMEM_ADDR_PROP, | 
|  | &error_abort); | 
|  | } | 
|  |  | 
|  | static MemoryRegion *virtio_pmem_pci_get_memory_region(MemoryDeviceState *md, | 
|  | Error **errp) | 
|  | { | 
|  | VirtIOPMEMPCI *pci_pmem = VIRTIO_PMEM_PCI(md); | 
|  | VirtIOPMEM *pmem = &pci_pmem->vdev; | 
|  | VirtIOPMEMClass *vpc = VIRTIO_PMEM_GET_CLASS(pmem); | 
|  |  | 
|  | return vpc->get_memory_region(pmem, errp); | 
|  | } | 
|  |  | 
|  | static uint64_t virtio_pmem_pci_get_plugged_size(const MemoryDeviceState *md, | 
|  | Error **errp) | 
|  | { | 
|  | VirtIOPMEMPCI *pci_pmem = VIRTIO_PMEM_PCI(md); | 
|  | VirtIOPMEM *pmem = &pci_pmem->vdev; | 
|  | VirtIOPMEMClass *vpc = VIRTIO_PMEM_GET_CLASS(pmem); | 
|  | MemoryRegion *mr = vpc->get_memory_region(pmem, errp); | 
|  |  | 
|  | /* the plugged size corresponds to the region size */ | 
|  | return mr ? memory_region_size(mr) : 0; | 
|  | } | 
|  |  | 
|  | static void virtio_pmem_pci_fill_device_info(const MemoryDeviceState *md, | 
|  | MemoryDeviceInfo *info) | 
|  | { | 
|  | VirtioPMEMDeviceInfo *vi = g_new0(VirtioPMEMDeviceInfo, 1); | 
|  | VirtIOPMEMPCI *pci_pmem = VIRTIO_PMEM_PCI(md); | 
|  | VirtIOPMEM *pmem = &pci_pmem->vdev; | 
|  | VirtIOPMEMClass *vpc = VIRTIO_PMEM_GET_CLASS(pmem); | 
|  | DeviceState *dev = DEVICE(md); | 
|  |  | 
|  | if (dev->id) { | 
|  | vi->id = g_strdup(dev->id); | 
|  | } | 
|  |  | 
|  | /* let the real device handle everything else */ | 
|  | vpc->fill_device_info(pmem, vi); | 
|  |  | 
|  | info->u.virtio_pmem.data = vi; | 
|  | info->type = MEMORY_DEVICE_INFO_KIND_VIRTIO_PMEM; | 
|  | } | 
|  |  | 
|  | static void virtio_pmem_pci_class_init(ObjectClass *klass, void *data) | 
|  | { | 
|  | DeviceClass *dc = DEVICE_CLASS(klass); | 
|  | VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); | 
|  | PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass); | 
|  | MemoryDeviceClass *mdc = MEMORY_DEVICE_CLASS(klass); | 
|  |  | 
|  | k->realize = virtio_pmem_pci_realize; | 
|  | set_bit(DEVICE_CATEGORY_MISC, dc->categories); | 
|  | pcidev_k->revision = VIRTIO_PCI_ABI_VERSION; | 
|  | pcidev_k->class_id = PCI_CLASS_OTHERS; | 
|  |  | 
|  | mdc->get_addr = virtio_pmem_pci_get_addr; | 
|  | mdc->set_addr = virtio_pmem_pci_set_addr; | 
|  | mdc->get_plugged_size = virtio_pmem_pci_get_plugged_size; | 
|  | mdc->get_memory_region = virtio_pmem_pci_get_memory_region; | 
|  | mdc->fill_device_info = virtio_pmem_pci_fill_device_info; | 
|  | } | 
|  |  | 
|  | static void virtio_pmem_pci_instance_init(Object *obj) | 
|  | { | 
|  | VirtIOPMEMPCI *dev = VIRTIO_PMEM_PCI(obj); | 
|  |  | 
|  | virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | 
|  | TYPE_VIRTIO_PMEM); | 
|  | } | 
|  |  | 
|  | static const VirtioPCIDeviceTypeInfo virtio_pmem_pci_info = { | 
|  | .base_name             = TYPE_VIRTIO_PMEM_PCI, | 
|  | .generic_name          = "virtio-pmem-pci", | 
|  | .parent                = TYPE_VIRTIO_MD_PCI, | 
|  | .instance_size = sizeof(VirtIOPMEMPCI), | 
|  | .instance_init = virtio_pmem_pci_instance_init, | 
|  | .class_init    = virtio_pmem_pci_class_init, | 
|  | }; | 
|  |  | 
|  | static void virtio_pmem_pci_register_types(void) | 
|  | { | 
|  | virtio_pci_types_register(&virtio_pmem_pci_info); | 
|  | } | 
|  | type_init(virtio_pmem_pci_register_types) |