From nobody Mon Feb 9 01:20:42 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@gnu.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@gnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1506631318684633.4023361677207; Thu, 28 Sep 2017 13:41:58 -0700 (PDT) Received: from localhost ([::1]:60788 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxfd4-00077f-Jy for importer@patchew.org; Thu, 28 Sep 2017 16:41:54 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53346) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxfYm-0003fs-9e for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:37:29 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dxfYl-00035T-KF for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:37:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45398) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dxfYl-00034z-EQ for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:37:27 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6A06D5F7AD; Thu, 28 Sep 2017 20:37:26 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-18.ams2.redhat.com [10.36.116.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9147818C66; Thu, 28 Sep 2017 20:37:24 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 6A06D5F7AD Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=david@redhat.com From: David Hildenbrand To: qemu-devel@nongnu.org Date: Thu, 28 Sep 2017 22:36:44 +0200 Message-Id: <20170928203708.9376-7-david@redhat.com> In-Reply-To: <20170928203708.9376-1-david@redhat.com> References: <20170928203708.9376-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Thu, 28 Sep 2017 20:37:26 +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] [PATCH v2 06/30] s390x/tcg: STOPPED cpus can never wake up X-BeenThere: qemu-devel@gnu.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 Hildenbrand , cohuck@redhat.com, Richard Henderson , Alexander Graf , Christian Borntraeger Errors-To: qemu-devel-bounces+importer=patchew.org@gnu.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" Interrupts can't wake such CPUs up. SIGP from other CPUs has to be used to toggle the state. Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand --- target/s390x/cpu.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index 9c2a1e6ac8..a0b139056f 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -57,6 +57,12 @@ static bool s390_cpu_has_work(CPUState *cs) { S390CPU *cpu =3D S390_CPU(cs); =20 + /* STOPPED cpus can never wake up */ + if (s390_cpu_get_state(cpu) !=3D CPU_STATE_LOAD && + s390_cpu_get_state(cpu) !=3D CPU_STATE_OPERATING) { + return false; + } + if (!(cs->interrupt_request & CPU_INTERRUPT_HARD)) { return false; } --=20 2.13.5