From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45794) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZwVKW-0003UW-QJ for qemu-devel@nongnu.org; Wed, 11 Nov 2015 08:21:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZwVKU-0007xy-67 for qemu-devel@nongnu.org; Wed, 11 Nov 2015 08:20:52 -0500 Received: from mga11.intel.com ([192.55.52.93]:52749) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZwVKU-0007wg-0s for qemu-devel@nongnu.org; Wed, 11 Nov 2015 08:20:50 -0500 From: Yuanhan Liu Date: Wed, 11 Nov 2015 21:24:41 +0800 Message-Id: <1447248281-15227-6-git-send-email-yuanhan.liu@linux.intel.com> In-Reply-To: <1447248281-15227-1-git-send-email-yuanhan.liu@linux.intel.com> References: <1447248281-15227-1-git-send-email-yuanhan.liu@linux.intel.com> Subject: [Qemu-devel] [PATCH v4 5/5] vhost: send SET_VRING_ENABLE at start/stop List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Yuanhan Liu , mst@redhat.com Send SET_VRING_ENABLE at start/stop, to give the backend an explicit sign of our state. Signed-off-by: Yuanhan Liu --- hw/virtio/vhost.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index be48511..0e956b5 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1234,6 +1234,11 @@ int vhost_dev_start(struct vhost_dev *hdev, VirtIODevice *vdev) } } + if (hdev->vhost_ops->vhost_set_vring_enable) { + /* only enable first vq pair by default */ + hdev->vhost_ops->vhost_set_vring_enable(hdev, hdev->vq_index == 0); + } + return 0; fail_log: vhost_log_put(hdev, false); @@ -1264,6 +1269,10 @@ void vhost_dev_stop(struct vhost_dev *hdev, VirtIODevice *vdev) hdev->vq_index + i); } + if (hdev->vhost_ops->vhost_set_vring_enable) { + hdev->vhost_ops->vhost_set_vring_enable(hdev, 0); + } + vhost_log_put(hdev, true); hdev->started = false; hdev->log = NULL; -- 1.9.0