From patchwork Wed May 29 16:07:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 10967317 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 906B36C5 for ; Wed, 29 May 2019 16:09:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 82B2528892 for ; Wed, 29 May 2019 16:09:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7714428A6C; Wed, 29 May 2019 16:09:03 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 22F0728892 for ; Wed, 29 May 2019 16:09:03 +0000 (UTC) Received: from localhost ([127.0.0.1]:57411 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hW18Q-0002AD-BM for patchwork-qemu-devel@patchwork.kernel.org; Wed, 29 May 2019 12:09:02 -0400 Received: from eggs.gnu.org ([209.51.188.92]:33283) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hW17g-0001il-EE for qemu-devel@nongnu.org; Wed, 29 May 2019 12:08:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hW17f-00023H-90 for qemu-devel@nongnu.org; Wed, 29 May 2019 12:08:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46570) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hW17V-0001zV-2t; Wed, 29 May 2019 12:08:06 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6969B307D97F; Wed, 29 May 2019 16:07:58 +0000 (UTC) Received: from thinkpad.redhat.com (ovpn-204-181.brq.redhat.com [10.40.204.181]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0F5521001DD8; Wed, 29 May 2019 16:07:53 +0000 (UTC) From: Laurent Vivier To: qemu-devel@nongnu.org Date: Wed, 29 May 2019 18:07:47 +0200 Message-Id: <20190529160747.778-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Wed, 29 May 2019 16:08:03 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v4] numa: improve cpu hotplug error message with a wrong node-id X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , qemu-arm@nongnu.org, qemu-ppc@nongnu.org, Igor Mammedov , David Gibson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP On pseries, core-ids are strongly binded to a node-id by the command line option. If an user tries to add a CPU to the wrong node, he has an error but it is not really helpful: qemu-system-ppc64 ... -smp 1,maxcpus=64,cores=1,threads=1,sockets=1 \ -numa node,nodeid=0 -numa node,nodeid=1 ... (qemu) device_add power9_v2.0-spapr-cpu-core,core-id=30,node-id=1 Error: node-id=1 must match numa node specified with -numa option This patch improves this error message by giving to the user the good node-id to use with the core-id he's providing Error: invalid node-id, must be 0 Signed-off-by: Laurent Vivier Reviewed-by: Igor Mammedov --- Notes: v4: simplify the message v3: only add the topology to the existing message As suggested by Igor replace Error: core-id 30 can only be plugged into node-id 0 by Error: node-id=1 must match numa node specified with -numa option 'node-id 0' v2: display full topology in the error message numa.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/numa.c b/numa.c index 3875e1efda3a..955ec0c830db 100644 --- a/numa.c +++ b/numa.c @@ -470,8 +470,8 @@ void numa_cpu_pre_plug(const CPUArchId *slot, DeviceState *dev, Error **errp) "node-id", errp); } } else if (node_id != slot->props.node_id) { - error_setg(errp, "node-id=%d must match numa node specified " - "with -numa option", node_id); + error_setg(errp, "invalid node-id, must be %"PRId64, + slot->props.node_id); } }