From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:58047) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZwtVH-0007oy-QK for qemu-devel@nongnu.org; Thu, 12 Nov 2015 10:09:36 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZwtVG-000830-GJ for qemu-devel@nongnu.org; Thu, 12 Nov 2015 10:09:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:36729) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZwtVG-00082w-Bm for qemu-devel@nongnu.org; Thu, 12 Nov 2015 10:09:34 -0500 Date: Thu, 12 Nov 2015 17:09:31 +0200 From: "Michael S. Tsirkin" Message-ID: <1447340097-18216-10-git-send-email-mst@redhat.com> References: <1447340097-18216-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447340097-18216-1-git-send-email-mst@redhat.com> Subject: [Qemu-devel] [PULL 09/11] 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: Peter Maydell , Yuanhan Liu From: Yuanhan Liu Send SET_VRING_ENABLE at start/stop, to give the backend an explicit sign of our state. Signed-off-by: Yuanhan Liu Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/vhost.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index de29968..1794f0d 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1226,6 +1226,11 @@ 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); @@ -1256,6 +1261,10 @@ 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; -- MST