From nobody Mon Feb 9 21:19:39 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1505834013359895.3865219842094; Tue, 19 Sep 2017 08:13:33 -0700 (PDT) Received: from localhost ([::1]:43466 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duKDM-0008In-EZ for importer@patchew.org; Tue, 19 Sep 2017 11:13:32 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45848) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1duJzQ-00046F-8s for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:59:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1duJzP-0000bJ-DG for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:59:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:29826) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1duJzP-0000b1-7X for qemu-devel@nongnu.org; Tue, 19 Sep 2017 10:59:07 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 34FAAC014181; Tue, 19 Sep 2017 14:59:06 +0000 (UTC) Received: from localhost (unknown [10.36.117.0]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 1EB125D984; Tue, 19 Sep 2017 14:59:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 34FAAC014181 Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx07.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=cohuck@redhat.com From: Cornelia Huck To: peter.maydell@linaro.org Date: Tue, 19 Sep 2017 16:56:19 +0200 Message-Id: <20170919145636.9389-22-cohuck@redhat.com> In-Reply-To: <20170919145636.9389-1-cohuck@redhat.com> References: <20170919145636.9389-1-cohuck@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Tue, 19 Sep 2017 14:59:06 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 21/38] s390x: allow only 1 CPU with TCG 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: thuth@redhat.com, david@redhat.com, Cornelia Huck , agraf@suse.de, qemu-devel@nongnu.org, borntraeger@de.ibm.com, rth@twiddle.net Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: David Hildenbrand Specifying more than 1 CPU (e.g. -smp 5) leads to SIGP errors (the guest tries to bring these CPUs up but fails), because we don't support multiple CPUs on s390x under TCG. Let's bail out if more than 1 is specified, so we don't raise people's hope. Tested-by: Matthew Rosato Signed-off-by: David Hildenbrand Message-Id: <20170913132417.24384-12-david@redhat.com> Reviewed-by: Igor Mammedov Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index f67b4b5d58..417998ec28 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -23,6 +23,7 @@ #include "hw/s390x/css.h" #include "virtio-ccw.h" #include "qemu/config-file.h" +#include "qemu/error-report.h" #include "s390-pci-bus.h" #include "hw/s390x/storage-keys.h" #include "hw/s390x/storage-attributes.h" @@ -55,6 +56,11 @@ static void s390_init_cpus(MachineState *machine) if (machine->cpu_model =3D=3D NULL) { machine->cpu_model =3D s390_default_cpu_model_name(); } + if (tcg_enabled() && max_cpus > 1) { + error_report("Number of SMP CPUs requested (%d) exceeds max CPUs " + "supported by TCG (1) on s390x", max_cpus); + exit(1); + } =20 cpu_states =3D g_new0(S390CPU *, max_cpus); =20 --=20 2.13.5