From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:33484) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gjUxH-0006Kk-Ap for qemu-devel@nongnu.org; Tue, 15 Jan 2019 15:05:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gjUxG-0002NO-1w for qemu-devel@nongnu.org; Tue, 15 Jan 2019 15:04:58 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42720) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gjUxF-000272-0Q for qemu-devel@nongnu.org; Tue, 15 Jan 2019 15:04:57 -0500 Date: Tue, 15 Jan 2019 15:04:16 -0500 From: "Michael S. Tsirkin" Message-ID: <20190115200252.25911-7-mst@redhat.com> References: <20190115200252.25911-1-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190115200252.25911-1-mst@redhat.com> Subject: [Qemu-devel] [PULL v2 06/49] vhost-user: fix ioeventfd_enabled List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Li Qiang From: Li Qiang Currently, the vhost-user-test assumes the eventfd is available. However it's not true because the accel is qtest. So the 'vhost_set_vring_file' will not add fds to the msg and the server side of vhost-user-test will be broken. The bug is in 'ioeventfd_enabled'. We should make this function return true if not using kvm accel. Signed-off-by: Li Qiang Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/vhost-user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index e09bed0e4a..564a31d12c 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -207,7 +207,7 @@ struct vhost_user { static bool ioeventfd_enabled(void) { - return kvm_enabled() && kvm_eventfds_enabled(); + return !kvm_enabled() || kvm_eventfds_enabled(); } static int vhost_user_read(struct vhost_dev *dev, VhostUserMsg *msg) -- MST