vhost-vdpa: add support for config interrupt
Add new call back function in vhost-vdpa, The function vhost_set_config_call can set the event fd to kernel. This function will be called in the vhost_dev_start and vhost_dev_stop Signed-off-by: Cindy Lu <lulu@redhat.com> Message-Id: <20221222070451.936503-6-lulu@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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@ -62,6 +62,7 @@ vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRI
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vhost_vdpa_set_owner(void *dev) "dev: %p"
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vhost_vdpa_vq_get_addr(void *dev, void *vq, uint64_t desc_user_addr, uint64_t avail_user_addr, uint64_t used_user_addr) "dev: %p vq: %p desc_user_addr: 0x%"PRIx64" avail_user_addr: 0x%"PRIx64" used_user_addr: 0x%"PRIx64
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vhost_vdpa_get_iova_range(void *dev, uint64_t first, uint64_t last) "dev: %p first: 0x%"PRIx64" last: 0x%"PRIx64
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vhost_vdpa_set_config_call(void *dev, int fd)"dev: %p fd: %d"
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# virtio.c
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virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u"
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@ -716,6 +716,13 @@ static int vhost_vdpa_set_vring_ready(struct vhost_dev *dev)
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return 0;
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}
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static int vhost_vdpa_set_config_call(struct vhost_dev *dev,
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int fd)
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{
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trace_vhost_vdpa_set_config_call(dev, fd);
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return vhost_vdpa_call(dev, VHOST_VDPA_SET_CONFIG_CALL, &fd);
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}
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static void vhost_vdpa_dump_config(struct vhost_dev *dev, const uint8_t *config,
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uint32_t config_len)
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{
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@ -1298,4 +1305,5 @@ const VhostOps vdpa_ops = {
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.vhost_get_device_id = vhost_vdpa_get_device_id,
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.vhost_vq_get_addr = vhost_vdpa_vq_get_addr,
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.vhost_force_iommu = vhost_vdpa_force_iommu,
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.vhost_set_config_call = vhost_vdpa_set_config_call,
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};
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