Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751295AbdFBTcB (ORCPT ); Fri, 2 Jun 2017 15:32:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:55968 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751192AbdFBTb6 (ORCPT ); Fri, 2 Jun 2017 15:31:58 -0400 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8FE9A23A24 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=sstabellini@kernel.org From: Stefano Stabellini To: xen-devel@lists.xen.org Cc: linux-kernel@vger.kernel.org, sstabellini@kernel.org, jgross@suse.com, boris.ostrovsky@oracle.com, Stefano Stabellini Subject: [PATCH v3 02/18] xen/pvcalls: introduce the pvcalls xenbus backend Date: Fri, 2 Jun 2017 12:31:39 -0700 Message-Id: <1496431915-20774-2-git-send-email-sstabellini@kernel.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1496431915-20774-1-git-send-email-sstabellini@kernel.org> References: <1496431915-20774-1-git-send-email-sstabellini@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2364 Lines: 84 Introduce a xenbus backend for the pvcalls protocol, as defined by https://xenbits.xen.org/docs/unstable/misc/pvcalls.html. This patch only adds the stubs, the code will be added by the following patches. Signed-off-by: Stefano Stabellini Reviewed-by: Boris Ostrovsky CC: boris.ostrovsky@oracle.com CC: jgross@suse.com --- drivers/xen/pvcalls-back.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 drivers/xen/pvcalls-back.c diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c new file mode 100644 index 0000000..f3d0daa --- /dev/null +++ b/drivers/xen/pvcalls-back.c @@ -0,0 +1,61 @@ +/* + * (c) 2017 Stefano Stabellini + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +static int pvcalls_back_probe(struct xenbus_device *dev, + const struct xenbus_device_id *id) +{ + return 0; +} + +static void pvcalls_back_changed(struct xenbus_device *dev, + enum xenbus_state frontend_state) +{ +} + +static int pvcalls_back_remove(struct xenbus_device *dev) +{ + return 0; +} + +static int pvcalls_back_uevent(struct xenbus_device *xdev, + struct kobj_uevent_env *env) +{ + return 0; +} + +static const struct xenbus_device_id pvcalls_back_ids[] = { + { "pvcalls" }, + { "" } +}; + +static struct xenbus_driver pvcalls_back_driver = { + .ids = pvcalls_back_ids, + .probe = pvcalls_back_probe, + .remove = pvcalls_back_remove, + .uevent = pvcalls_back_uevent, + .otherend_changed = pvcalls_back_changed, +}; -- 1.9.1