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virtio: introduce macro IRTIO_CONFIG_IRQ_IDX

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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>
This commit is contained in:
Cindy Lu 2021-11-05 00:48:18 +08:00 • committed by Michael S. Tsirkin
parent 9bd6565cce
commit bf1d85c166
6 changed files with 35 additions and 2 deletions
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6
hw/virtio/virtio-crypto.c
View file

@ -948,6 +948,9 @@ static void virtio_crypto_guest_notifier_mask(VirtIODevice *vdev, int idx,
assert(vcrypto->vhost_started);
if (idx == VIRTIO_CONFIG_IRQ_IDX) {
return;
}
cryptodev_vhost_virtqueue_mask(vdev, queue, idx, mask);
}
@ -958,6 +961,9 @@ static bool virtio_crypto_guest_notifier_pending(VirtIODevice *vdev, int idx)
assert(vcrypto->vhost_started);
if (idx == VIRTIO_CONFIG_IRQ_IDX) {
return false;
}
return cryptodev_vhost_virtqueue_pending(vdev, queue, idx);
}