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[PATCH for 8.0 v8 02/12] vhost: set SVQ device call handler at SVQ start
From: |
Eugenio Pérez |
Subject: |
[PATCH for 8.0 v8 02/12] vhost: set SVQ device call handler at SVQ start |
Date: |
Thu, 24 Nov 2022 16:51:48 +0100 |
By the end of this series CVQ is shadowed as long as the features
support it.
Since we don't know at the beginning of qemu running if this is
supported, move the event notifier handler setting to the start of the
SVQ, instead of the start of qemu run. This will avoid to create them if
the device does not support SVQ.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
---
hw/virtio/vhost-shadow-virtqueue.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/virtio/vhost-shadow-virtqueue.c
b/hw/virtio/vhost-shadow-virtqueue.c
index 5bd14cad96..264ddc166d 100644
--- a/hw/virtio/vhost-shadow-virtqueue.c
+++ b/hw/virtio/vhost-shadow-virtqueue.c
@@ -648,6 +648,7 @@ void vhost_svq_start(VhostShadowVirtqueue *svq,
VirtIODevice *vdev,
{
size_t desc_size, driver_size, device_size;
+ event_notifier_set_handler(&svq->hdev_call, vhost_svq_handle_call);
svq->next_guest_avail_elem = NULL;
svq->shadow_avail_idx = 0;
svq->shadow_used_idx = 0;
@@ -704,6 +705,7 @@ void vhost_svq_stop(VhostShadowVirtqueue *svq)
g_free(svq->desc_state);
qemu_vfree(svq->vring.desc);
qemu_vfree(svq->vring.used);
+ event_notifier_set_handler(&svq->hdev_call, NULL);
}
/**
@@ -740,7 +742,6 @@ VhostShadowVirtqueue *vhost_svq_new(VhostIOVATree
*iova_tree,
}
event_notifier_init_fd(&svq->svq_kick, VHOST_FILE_UNBIND);
- event_notifier_set_handler(&svq->hdev_call, vhost_svq_handle_call);
svq->iova_tree = iova_tree;
svq->ops = ops;
svq->ops_opaque = ops_opaque;
@@ -763,7 +764,6 @@ void vhost_svq_free(gpointer pvq)
VhostShadowVirtqueue *vq = pvq;
vhost_svq_stop(vq);
event_notifier_cleanup(&vq->hdev_kick);
- event_notifier_set_handler(&vq->hdev_call, NULL);
event_notifier_cleanup(&vq->hdev_call);
g_free(vq);
}
--
2.31.1
- [PATCH for 8.0 v8 00/12] ASID support in vhost-vdpa net, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 01/12] vdpa: use v->shadow_vqs_enabled in vhost_vdpa_svqs_start & stop, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 02/12] vhost: set SVQ device call handler at SVQ start,
Eugenio Pérez <=
- [PATCH for 8.0 v8 03/12] vhost: allocate SVQ device file descriptors at device start, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 04/12] vhost: move iova_tree set to vhost_svq_start, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 05/12] vdpa: add vhost_vdpa_net_valid_svq_features, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 06/12] vdpa: extract vhost_vdpa_svq_allocate_iova_tree, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 08/12] vdpa: allocate SVQ array unconditionally, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 07/12] vdpa: move SVQ vring features check to net/, Eugenio Pérez, 2022/11/24
- [PATCH for 8.0 v8 10/12] vdpa: store x-svq parameter in VhostVDPAState, Eugenio Pérez, 2022/11/24