/* * vhost-vdpa.h * * Copyright(c) 2017-2018 Intel Corporation. * Copyright(c) 2020 Red Hat, Inc. * * This work is licensed under the terms of the GNU GPL, version 2 or later. * See the COPYING file in the top-level directory. * */ #ifndef HW_VIRTIO_VHOST_VDPA_H #define HW_VIRTIO_VHOST_VDPA_H #include #include "hw/virtio/vhost-iova-tree.h" #include "hw/virtio/vhost-shadow-virtqueue.h" #include "hw/virtio/virtio.h" #include "standard-headers/linux/vhost_types.h" typedef struct VhostVDPAHostNotifier { MemoryRegion mr; void *addr; } VhostVDPAHostNotifier; typedef struct vhost_vdpa { int device_fd; int index; uint32_t msg_type; bool iotlb_batch_begin_sent; MemoryListener listener; struct vhost_vdpa_iova_range iova_range; uint64_t acked_features; bool shadow_vqs_enabled; /* IOVA mapping used by the Shadow Virtqueue */ VhostIOVATree *iova_tree; Error *migration_blocker; GPtrArray *shadow_vqs; const VhostShadowVirtqueueOps *shadow_vq_ops; void *shadow_vq_ops_opaque; struct vhost_dev *dev; VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX]; } VhostVDPA; int vhost_vdpa_dma_map(struct vhost_vdpa *v, hwaddr iova, hwaddr size, void *vaddr, bool readonly); int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, hwaddr iova, hwaddr size); #endif