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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 80FF2C433DF for ; Wed, 13 May 2020 23:39:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F91D2054F for ; Wed, 13 May 2020 23:39:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="C5wiUZj9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732753AbgEMXju (ORCPT ); Wed, 13 May 2020 19:39:50 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:54528 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732523AbgEMXju (ORCPT ); Wed, 13 May 2020 19:39:50 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04DNaPAg065703; Wed, 13 May 2020 23:39:42 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id; s=corp-2020-01-29; bh=WUtDE1uvxFfqtxiGlboxCs/AC9GkRjxAc7zArX6xztU=; b=C5wiUZj9WYB1aqt+jnVi12+YGGDEW0nQ8LtsgPIZBkEAcyoj8ADZC37Pgb8kxnOh26fc V0Wu+Tja6vN9+8fzF34W6WSFaJS3MWmSIhSwRQ+vnzrXGROUojOCUVlARX/lOQqEVVD7 k//V+rJYO0LxrgNN4BiAAEXcfnMofRusW62WfQTf32LIqb1LvXaCAnvddFb0CX/vEPEH qie2e4zIR7bYHTGuf5jjxqg3eXk0w/iK+w9w+TgtQyM8WtJWZnLsX5s8aApmUa+ZlGgS D+8jO2AAKohWG+jzWyQJEO5TVobD6JCTcyU2TMVMpq9Zi8e1UrPMM5Q7wQkbOseCgff5 qQ== Received: from userp3030.oracle.com (userp3030.oracle.com [156.151.31.80]) by userp2130.oracle.com with ESMTP id 3100yfydwe-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 13 May 2020 23:39:42 +0000 Received: from pps.filterd (userp3030.oracle.com [127.0.0.1]) by userp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 04DNc3Fk100680; Wed, 13 May 2020 23:39:42 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3030.oracle.com with ESMTP id 3100yfk17f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 13 May 2020 23:39:42 +0000 Received: from abhmp0001.oracle.com (abhmp0001.oracle.com [141.146.116.7]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 04DNde5Y017022; Wed, 13 May 2020 23:39:40 GMT Received: from localhost.localdomain (/10.211.9.80) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Wed, 13 May 2020 16:39:40 -0700 From: Dongli Zhang To: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Cc: boris.ostrovsky@oracle.com, jgross@suse.com, sstabellini@kernel.org, joe.jin@oracle.com, rose.wang@oracle.com Subject: [PATCH 1/1] xen/manage: enable C_A_D to force reboot Date: Wed, 13 May 2020 16:34:10 -0700 Message-Id: <20200513233410.18120-1-dongli.zhang@oracle.com> X-Mailer: git-send-email 2.17.1 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9620 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 bulkscore=0 phishscore=0 suspectscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005130203 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9620 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 adultscore=0 cotscore=-2147483648 mlxscore=0 suspectscore=0 spamscore=0 impostorscore=0 mlxlogscore=999 malwarescore=0 clxscore=1011 phishscore=0 bulkscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2005130203 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The systemd may be configured to mask ctrl-alt-del via "systemctl mask ctrl-alt-del.target". As a result, the pv reboot would not work as signal is ignored. This patch always enables C_A_D before the call of ctrl_alt_del() in order to force the reboot. Reported-by: Rose Wang Cc: Joe Jin Cc: Boris Ostrovsky Signed-off-by: Dongli Zhang --- drivers/xen/manage.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index cd046684e0d1..3190d0ecb52e 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -204,6 +204,13 @@ static void do_poweroff(void) static void do_reboot(void) { shutting_down = SHUTDOWN_POWEROFF; /* ? */ + /* + * The systemd may be configured to mask ctrl-alt-del via + * "systemctl mask ctrl-alt-del.target". As a result, the pv reboot + * would not work. To enable C_A_D would force the reboot. + */ + C_A_D = 1; + ctrl_alt_del(); } -- 2.17.1