From 60dc3c5be9ce67f4195c432b22a88d8af6429d80 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Thu, 23 Jun 2022 19:13:24 +0300 Subject: vhost: add method vhost_set_vring_err Kernel and user vhost may report virtqueue errors via eventfd. This is only reliable way to get notification about protocol error. Signed-off-by: Konstantin Khlebnikov Message-Id: <20220623161325.18813-2-vsementsov@yandex-team.ru> Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin Reviewed-by: Roman Kagan --- hw/virtio/vhost-user.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'hw/virtio/vhost-user.c') diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 4b9be26e84..75b8df21a4 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -1313,6 +1313,11 @@ static int vhost_user_set_vring_call(struct vhost_dev *dev, return vhost_set_vring_file(dev, VHOST_USER_SET_VRING_CALL, file); } +static int vhost_user_set_vring_err(struct vhost_dev *dev, + struct vhost_vring_file *file) +{ + return vhost_set_vring_file(dev, VHOST_USER_SET_VRING_ERR, file); +} static int vhost_user_get_u64(struct vhost_dev *dev, int request, uint64_t *u64) { @@ -2616,6 +2621,7 @@ const VhostOps user_ops = { .vhost_get_vring_base = vhost_user_get_vring_base, .vhost_set_vring_kick = vhost_user_set_vring_kick, .vhost_set_vring_call = vhost_user_set_vring_call, + .vhost_set_vring_err = vhost_user_set_vring_err, .vhost_set_features = vhost_user_set_features, .vhost_get_features = vhost_user_get_features, .vhost_set_owner = vhost_user_set_owner, -- cgit 1.4.1