From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=FROM_WSP_TRAIL, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5AECDCA9ECF for ; Fri, 1 Nov 2019 02:57:59 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3330E2086D for ; Fri, 1 Nov 2019 02:57:59 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3330E2086D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:55520 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iQN8P-0006iH-2F for qemu-devel@archiver.kernel.org; Thu, 31 Oct 2019 22:57:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56478) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iQN6O-0004uS-Os for qemu-devel@nongnu.org; Thu, 31 Oct 2019 22:55:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iQN6M-00012Z-Tw for qemu-devel@nongnu.org; Thu, 31 Oct 2019 22:55:51 -0400 Received: from mga09.intel.com ([134.134.136.24]:16107) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iQN6M-0000gd-KE for qemu-devel@nongnu.org; Thu, 31 Oct 2019 22:55:50 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 31 Oct 2019 19:55:44 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,253,1569308400"; d="scan'208";a="199216665" Received: from unknown (HELO localhost.localdomain) ([10.239.13.19]) by fmsmga008.fm.intel.com with ESMTP; 31 Oct 2019 19:55:43 -0700 From: Zhang Chen To: Jason Wang , Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-dev Subject: [PATCH V2 2/4] net/awd.c: Initailize input/output chardev Date: Fri, 1 Nov 2019 10:48:48 +0800 Message-Id: <20191101024850.20808-3-chen.zhang@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191101024850.20808-1-chen.zhang@intel.com> References: <20191101024850.20808-1-chen.zhang@intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.24 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Zhang Chen , Zhang Chen Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Zhang Chen Find and check the chardev awd_node and notification_node, The awd_node used for keep connect with outside(like VM client/other host/Remote server), and the notification_node used for do some operation when disconnect event occur. Signed-off-by: Zhang Chen --- net/awd.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) diff --git a/net/awd.c b/net/awd.c index d42b4a7372..ad3d39c982 100644 --- a/net/awd.c +++ b/net/awd.c @@ -42,6 +42,8 @@ typedef struct AwdState { char *opt_script; uint32_t pulse_interval; uint32_t timeout; + CharBackend chr_awd_node; + CharBackend chr_notification_node; IOThread *iothread; } AwdState; @@ -175,9 +177,30 @@ out: error_propagate(errp, local_err); } +static int find_and_check_chardev(Chardev **chr, + char *chr_name, + Error **errp) +{ + *chr = qemu_chr_find(chr_name); + if (*chr == NULL) { + error_setg(errp, "Device '%s' not found", + chr_name); + return 1; + } + + if (!qemu_chr_has_feature(*chr, QEMU_CHAR_FEATURE_RECONNECTABLE)) { + error_setg(errp, "chardev \"%s\" is not reconnectable", + chr_name); + return 1; + } + + return 0; +} + static void awd_complete(UserCreatable *uc, Error **errp) { AwdState *s = AWD(uc); + Chardev *chr; if (!s->awd_node || !s->iothread || !s->notification_node || !s->opt_script) { @@ -187,6 +210,20 @@ static void awd_complete(UserCreatable *uc, Error **errp) return; } + if (find_and_check_chardev(&chr, s->awd_node, errp) || + !qemu_chr_fe_init(&s->chr_awd_node, chr, errp)) { + error_setg(errp, "advanced-watchdog can't find chardev awd_node: %s", + s->awd_node); + return; + } + + if (find_and_check_chardev(&chr, s->notification_node, errp) || + !qemu_chr_fe_init(&s->chr_notification_node, chr, errp)) { + error_setg(errp, "advanced-watchdog can't find " + "chardev notification_node: %s", s->notification_node); + return; + } + return; } -- 2.17.1