6188d78a19
The memory listener that thells the device how to convert GPA to qemu's va is registered against CVQ vhost_vdpa. memory listener translations are always ASID 0, CVQ ones are ASID 1 if supported. Let's tell the listener if it needs to register them on iova tree or not. Signed-off-by: Eugenio Pérez <eperezma@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Message-Id: <20221215113144.322011-12-eperezma@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
60 lines
1.7 KiB
C
60 lines
1.7 KiB
C
/*
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* vhost-vdpa.h
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*
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* Copyright(c) 2017-2018 Intel Corporation.
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* Copyright(c) 2020 Red Hat, Inc.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*
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*/
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#ifndef HW_VIRTIO_VHOST_VDPA_H
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#define HW_VIRTIO_VHOST_VDPA_H
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#include <gmodule.h>
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#include "hw/virtio/vhost-iova-tree.h"
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#include "hw/virtio/vhost-shadow-virtqueue.h"
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#include "hw/virtio/virtio.h"
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#include "standard-headers/linux/vhost_types.h"
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/*
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* ASID dedicated to map guest's addresses. If SVQ is disabled it maps GPA to
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* qemu's IOVA. If SVQ is enabled it maps also the SVQ vring here
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*/
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#define VHOST_VDPA_GUEST_PA_ASID 0
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typedef struct VhostVDPAHostNotifier {
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MemoryRegion mr;
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void *addr;
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} VhostVDPAHostNotifier;
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typedef struct vhost_vdpa {
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int device_fd;
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int index;
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uint32_t msg_type;
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bool iotlb_batch_begin_sent;
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uint32_t address_space_id;
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MemoryListener listener;
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struct vhost_vdpa_iova_range iova_range;
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uint64_t acked_features;
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bool shadow_vqs_enabled;
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/* Vdpa must send shadow addresses as IOTLB key for data queues, not GPA */
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bool shadow_data;
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/* IOVA mapping used by the Shadow Virtqueue */
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VhostIOVATree *iova_tree;
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GPtrArray *shadow_vqs;
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const VhostShadowVirtqueueOps *shadow_vq_ops;
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void *shadow_vq_ops_opaque;
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struct vhost_dev *dev;
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VhostVDPAHostNotifier notifier[VIRTIO_QUEUE_MAX];
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} VhostVDPA;
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int vhost_vdpa_dma_map(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
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hwaddr size, void *vaddr, bool readonly);
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int vhost_vdpa_dma_unmap(struct vhost_vdpa *v, uint32_t asid, hwaddr iova,
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hwaddr size);
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#endif
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