xref: /openbmc/qemu/include/hw/virtio/virtio-pmem.h (revision b23317ee)
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-machine.h"
19 #include "qom/object.h"
20 
21 #define TYPE_VIRTIO_PMEM "virtio-pmem"
22 
23 OBJECT_DECLARE_TYPE(VirtIOPMEM, VirtIOPMEMClass,
24                     VIRTIO_PMEM)
25 
26 #define VIRTIO_PMEM_ADDR_PROP "memaddr"
27 #define VIRTIO_PMEM_MEMDEV_PROP "memdev"
28 
29 struct VirtIOPMEM {
30     VirtIODevice parent_obj;
31 
32     VirtQueue *rq_vq;
33     uint64_t start;
34     HostMemoryBackend *memdev;
35 };
36 
37 struct VirtIOPMEMClass {
38     /* private */
39     VirtIODevice parent;
40 
41     /* public */
42     void (*fill_device_info)(const VirtIOPMEM *pmem, VirtioPMEMDeviceInfo *vi);
43     MemoryRegion *(*get_memory_region)(VirtIOPMEM *pmem, Error **errp);
44 };
45 
46 #endif
47