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vhost-vdpa: add support for config interrupt

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Add new call back function in vhost-vdpa, this function will
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: <20211104164827.21911-6-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Cindy Lu 2021-11-05 00:48:22 +08:00 committed by Michael S. Tsirkin
parent 8806237234
commit 634f7c89fb
2 changed files with 8 additions and 0 deletions
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1
hw/virtio/trace-events
View File

@ -53,6 +53,7 @@ vhost_vdpa_get_features(void *dev, uint64_t features) "dev: %p features: 0x%"PRI
vhost_vdpa_set_owner(void *dev) "dev: %p"
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
vhost_vdpa_get_iova_range(void *dev, uint64_t first, uint64_t last) "dev: %p first: 0x%"PRIx64" last: 0x%"PRIx64
vhost_vdpa_set_config_call(void *dev, int fd)"dev: %p fd: %d"
# virtio.c
virtqueue_alloc_element(void *elem, size_t sz, unsigned in_num, unsigned out_num) "elem %p size %zd in_num %u out_num %u"

7
hw/virtio/vhost-vdpa.c
View File

@ -725,6 +725,12 @@ static int vhost_vdpa_set_vring_call(struct vhost_dev *dev,
trace_vhost_vdpa_set_vring_call(dev, file->index, file->fd);
return vhost_vdpa_call(dev, VHOST_SET_VRING_CALL, file);
}
static int vhost_vdpa_set_config_call(struct vhost_dev *dev,
int fd)
{
trace_vhost_vdpa_set_config_call(dev, fd);
return vhost_vdpa_call(dev, VHOST_VDPA_SET_CONFIG_CALL, &fd);
}
static int vhost_vdpa_get_features(struct vhost_dev *dev,
uint64_t *features)
@ -795,4 +801,5 @@ const VhostOps vdpa_ops = {
.vhost_get_device_id = vhost_vdpa_get_device_id,
.vhost_vq_get_addr = vhost_vdpa_vq_get_addr,
.vhost_force_iommu = vhost_vdpa_force_iommu,
.vhost_set_config_call = vhost_vdpa_set_config_call,
};