1 /* 2 * Virtio PMEM device 3 * 4 * Copyright (C) 2018-2019 Red Hat, Inc. 5 * 6 * Authors: 7 * Pankaj Gupta <pagupta@redhat.com> 8 * David Hildenbrand <david@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2. 11 * See the COPYING file in the top-level directory. 12 */ 13 14 #ifndef HW_VIRTIO_PMEM_H 15 #define HW_VIRTIO_PMEM_H 16 17 #include "hw/virtio/virtio.h" 18 #include "qapi/qapi-types-misc.h" 19 #include "qom/object.h" 20 21 #define TYPE_VIRTIO_PMEM "virtio-pmem" 22 23 typedef struct VirtIOPMEM VirtIOPMEM; 24 typedef struct VirtIOPMEMClass VirtIOPMEMClass; 25 #define VIRTIO_PMEM(obj) \ 26 OBJECT_CHECK(VirtIOPMEM, (obj), TYPE_VIRTIO_PMEM) 27 #define VIRTIO_PMEM_CLASS(oc) \ 28 OBJECT_CLASS_CHECK(VirtIOPMEMClass, (oc), TYPE_VIRTIO_PMEM) 29 #define VIRTIO_PMEM_GET_CLASS(obj) \ 30 OBJECT_GET_CLASS(VirtIOPMEMClass, (obj), TYPE_VIRTIO_PMEM) 31 32 #define VIRTIO_PMEM_ADDR_PROP "memaddr" 33 #define VIRTIO_PMEM_MEMDEV_PROP "memdev" 34 35 struct VirtIOPMEM { 36 VirtIODevice parent_obj; 37 38 VirtQueue *rq_vq; 39 uint64_t start; 40 HostMemoryBackend *memdev; 41 }; 42 43 struct VirtIOPMEMClass { 44 /* private */ 45 VirtIODevice parent; 46 47 /* public */ 48 void (*fill_device_info)(const VirtIOPMEM *pmem, VirtioPMEMDeviceInfo *vi); 49 MemoryRegion *(*get_memory_region)(VirtIOPMEM *pmem, Error **errp); 50 }; 51 52 #endif 53