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vdpa: Remember last call fd set

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As SVQ can be enabled dynamically at any time, it needs to store call fd
always.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Message-Id: <20230303172445.1089785-3-eperezma@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Eugenio Pérez 2023-03-03 18:24:33 +01:00 • committed by Michael S. Tsirkin
parent 00ef422e9f
commit b276524386
1 changed files with 6 additions and 6 deletions
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12
hw/virtio/vhost-vdpa.c
View file

@ -1227,16 +1227,16 @@ static int vhost_vdpa_set_vring_call(struct vhost_dev *dev,
struct vhost_vring_file *file) struct vhost_vring_file *file)
{ {
struct vhost_vdpa *v = dev->opaque; struct vhost_vdpa *v = dev->opaque;
int vdpa_idx = file->index - dev->vq_index;
VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, vdpa_idx);
/* Remember last call fd because we can switch to SVQ anytime. */
vhost_svq_set_svq_call_fd(svq, file->fd);
if (v->shadow_vqs_enabled) { if (v->shadow_vqs_enabled) {
int vdpa_idx = file->index - dev->vq_index;
VhostShadowVirtqueue *svq = g_ptr_array_index(v->shadow_vqs, vdpa_idx);
vhost_svq_set_svq_call_fd(svq, file->fd);
return 0; return 0;
} else {
return vhost_vdpa_set_vring_dev_call(dev, file);
} }
return vhost_vdpa_set_vring_dev_call(dev, file);
} }
static int vhost_vdpa_get_features(struct vhost_dev *dev, static int vhost_vdpa_get_features(struct vhost_dev *dev,