| /* |
| * 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", |
| .instance_size = sizeof(VirtIOPMEMPCI), |
| .instance_init = virtio_pmem_pci_instance_init, |
| .class_init = virtio_pmem_pci_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { TYPE_MEMORY_DEVICE }, |
| { } |
| }, |
| }; |
| |
| static void virtio_pmem_pci_register_types(void) |
| { |
| virtio_pci_types_register(&virtio_pmem_pci_info); |
| } |
| type_init(virtio_pmem_pci_register_types) |