diff options
| author | Cindy Lu <lulu@redhat.com> | 2021-11-05 00:48:18 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-01-06 06:11:39 -0500 |
| commit | bf1d85c166c19af95dbd27b1faba1d2909732323 (patch) | |
| tree | b5aa07ac6e4b08fe8b789723657d748b6dddf6bf /hw/net | |
| parent | 9bd6565ccee68f72d5012e24646e12a1c662827e (diff) | |
virtio: introduce macro IRTIO_CONFIG_IRQ_IDX
To support configure interrupt for vhost-vdpa
Introduce VIRTIO_CONFIG_IRQ_IDX -1 as configure interrupt's queue index,
Then we can reuse the functions guest_notifier_mask and guest_notifier_pending.
Add the check of queue index in these drivers, if the driver does not support
configure interrupt, the function will just return
Signed-off-by: Cindy Lu <lulu@redhat.com>
Message-Id: <20211104164827.21911-2-lulu@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/net')
| -rw-r--r-- | hw/net/virtio-net.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c index cf8ab0f8af..5e03c0dd14 100644 --- a/hw/net/virtio-net.c +++ b/hw/net/virtio-net.c @@ -3168,6 +3168,9 @@ static bool virtio_net_guest_notifier_pending(VirtIODevice *vdev, int idx) VirtIONet *n = VIRTIO_NET(vdev); NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx)); assert(n->vhost_started); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return false; + } return vhost_net_virtqueue_pending(get_vhost_net(nc->peer), idx); } @@ -3177,8 +3180,11 @@ static void virtio_net_guest_notifier_mask(VirtIODevice *vdev, int idx, VirtIONet *n = VIRTIO_NET(vdev); NetClientState *nc = qemu_get_subqueue(n->nic, vq2q(idx)); assert(n->vhost_started); - vhost_net_virtqueue_mask(get_vhost_net(nc->peer), - vdev, idx, mask); + if (idx == VIRTIO_CONFIG_IRQ_IDX) { + return; + } + + vhost_net_virtqueue_mask(get_vhost_net(nc->peer), vdev, idx, mask); } static void virtio_net_set_config_size(VirtIONet *n, uint64_t host_features) |