Merge tag 'pull-request-2022-08-16' of https://gitlab.com/thuth/qemu into staging
[qemu.git] / include / hw / virtio / vhost-vdpa.h
1 /*
2 * vhost-vdpa.h
3 *
4 * Copyright(c) 2017-2018 Intel Corporation.
5 * Copyright(c) 2020 Red Hat, Inc.
6 *
7 * This work is licensed under the terms of the GNU GPL, version 2 or later.
8 * See the COPYING file in the top-level directory.
9 *
10 */
11
12 #ifndef HW_VIRTIO_VHOST_VDPA_H
13 #define HW_VIRTIO_VHOST_VDPA_H
14
15 #include <gmodule.h>
16
17 #include "hw/virtio/vhost-iova-tree.h"
18 #include "hw/virtio/vhost-shadow-virtqueue.h"
19 #include "hw/virtio/virtio.h"
20 #include "standard-headers/linux/vhost_types.h"
21
22 typedef struct VhostVDPAHostNotifier {
23 MemoryRegion mr;
24 void *addr;
25 } VhostVDPAHostNotifier;
26
27 typedef struct vhost_vdpa {
28 int device_fd;
29 int index;
30 uint32_t msg_type;
31 bool iotlb_batch_begin_sent;
32 MemoryListener listener;
33 struct vhost_vdpa_iova_range iova_range;
34 uint64_t acked_features;
35 bool shadow_vqs_enabled;
36 /* IOVA mapping used by the Shadow Virtqueue */
37 VhostIOVATree *iova_tree;
38 Error *migration_blocker;
39 GPtrArray *shadow_vqs;
40 const VhostShadowVirtqueueOps *shadow_vq_ops;
41 void *shadow_vq_ops_opaque;
42 struct vhost_dev *dev;
43 VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
44 } VhostVDPA;
45
46 int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size,
47 void *vaddr, bool readonly);
48 int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, hwaddr size);
49
50 #endif