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- /*
- * 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);
- 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 = VIRTIO_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 = VIRTIO_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 = VIRTIO_PMEM(&pci_pmem->vdev);
- VirtIOPMEMClass *vpc = VIRTIO_PMEM_GET_CLASS(pmem);
- DeviceState *dev = DEVICE(md);
- if (dev->id) {
- vi->has_id = true;
- 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->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
- pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_PMEM;
- 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)
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