| /* |
| * 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 <gmodule.h> |
| |
| #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" |
| |
| /* |
| * ASID dedicated to map guest's addresses. If SVQ is disabled it maps GPA to |
| * qemu's IOVA. If SVQ is enabled it maps also the SVQ vring here |
| */ |
| #define VHOST_VDPA_GUEST_PA_ASID 0 |
| |
| 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; |
| uint32_t address_space_id; |
| MemoryListener listener; |
| struct vhost_vdpa_iova_range iova_range; |
| uint64_t acked_features; |
| bool shadow_vqs_enabled; |
| /* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */ |
| bool shadow_data; |
| /* IOVA mapping used by the Shadow Virtqueue */ |
| VhostIOVATree *iova_tree; |
| 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_get_iova_range(int fd, struct vhost_vdpa_iova_range *iova_range); |
| |
| int vhost_vdpa_dma_map(struct vhost_vdpa *v, uint32_t asid, hwaddr iova, |
| hwaddr size, void *vaddr, bool readonly); |
| int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, uint32_t asid, hwaddr iova, |
| hwaddr size); |
| |
| #endif |