From nobody Thu Nov 13 22:08:31 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1582720027; cv=none; d=zohomail.com; s=zohoarc; b=Mo3gqpPKkc8bX9PoLaZR3Xf4ag0B1P0Goojl5zjzmMi+4cH9WcRYzKwADR1OACMpal/hQBFXw+XmcsULPAokNDC6Ommfv9pKr7h8mAWAU8E6DapG3B1CIa1oubrww5Bfhx7SLfSh3hcUhxJcTklI69MNHS+2gmiGa2z4SSpdSRw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1582720027; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=zl9YjUBV1FHkUX19LqbIb1sBCaS6ESThnPsnU4Q8Pwk=; b=bDSqpMW4jLd1tf1TtpB6Fyvgrrx9XHgEUnloR7ze0sRL4TEiSMjE3D5XIFcyORveAf2NPc3SpvFVo5Cj1ZrEX50uIVcwbYuKA3ZGFxfB0fD8rJn8ayV8BjEsElVF8s38lB1JpEHlatndDEXJl1U8dnIXNWUF1XTGqOMy/ij0llI= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1582720027191723.4101399910477; Wed, 26 Feb 2020 04:27:07 -0800 (PST) Received: from localhost ([::1]:43560 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6vmK-0005hw-K8 for importer@patchew.org; Wed, 26 Feb 2020 07:27:04 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:53415) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1j6vgU-0002Ur-9Q for qemu-devel@nongnu.org; Wed, 26 Feb 2020 07:21:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1j6vgT-00084Y-7G for qemu-devel@nongnu.org; Wed, 26 Feb 2020 07:21:02 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:13086 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1j6vgT-00082o-0d for qemu-devel@nongnu.org; Wed, 26 Feb 2020 07:21:01 -0500 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 01QCJo3Y059117 for ; Wed, 26 Feb 2020 07:21:00 -0500 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ydqkatdge-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 26 Feb 2020 07:21:00 -0500 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 26 Feb 2020 12:20:57 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01QCKu7t61145162 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 26 Feb 2020 12:20:56 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B15AD11C04C; Wed, 26 Feb 2020 12:20:56 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F06B811C04A; Wed, 26 Feb 2020 12:20:55 +0000 (GMT) Received: from localhost.localdomain (unknown [9.152.224.212]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 26 Feb 2020 12:20:55 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Subject: [PATCH v5 12/18] s390x: protvirt: Set guest IPL PSW Date: Wed, 26 Feb 2020 07:20:32 -0500 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200226122038.61481-1-frankja@linux.ibm.com> References: <20200226122038.61481-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 x-cbid: 20022612-0008-0000-0000-000003569643 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20022612-0009-0000-0000-00004A77B50F Message-Id: <20200226122038.61481-13-frankja@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-02-26_03:2020-02-26, 2020-02-26 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 malwarescore=0 priorityscore=1501 suspectscore=1 lowpriorityscore=0 mlxscore=0 spamscore=0 adultscore=0 mlxlogscore=999 impostorscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002260092 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 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: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, cohuck@redhat.com, david@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Type: text/plain; charset="utf-8" Handling of CPU reset and setting of the IPL psw from guest storage at offset 0 is done by a Ultravisor call. Let's only fetch it if necessary. Signed-off-by: Janosch Frank Reviewed-by: Thomas Huth --- target/s390x/cpu.c | 23 ++++++++++++++--------- 1 file changed, 14 insertions(+), 9 deletions(-) diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index c4d937e35a..cd53e123f3 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -78,16 +78,21 @@ static bool s390_cpu_has_work(CPUState *cs) static void s390_cpu_load_normal(CPUState *s) { S390CPU *cpu =3D S390_CPU(s); - uint64_t spsw =3D ldq_phys(s->as, 0); - - cpu->env.psw.mask =3D spsw & PSW_MASK_ESA_MASK; - /* - * Invert short psw indication, so SIE will report a specification - * exception if it was not set. - */ - cpu->env.psw.mask ^=3D PSW_MASK_SHORTPSW; - cpu->env.psw.addr =3D spsw & PSW_MASK_ESA_ADDR; + CPUS390XState *env =3D &cpu->env; + uint64_t spsw; =20 + if (!env->pv) { + spsw =3D ldq_phys(s->as, 0); + cpu->env.psw.mask =3D spsw & PSW_MASK_ESA_MASK; + /* + * Invert short psw indication, so SIE will report a specification + * exception if it was not set. + */ + cpu->env.psw.mask ^=3D PSW_MASK_SHORTPSW; + cpu->env.psw.addr =3D spsw & PSW_MASK_ESA_ADDR; + } else { + s390_cpu_set_state(S390_CPU_STATE_LOAD, cpu); + } s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); } #endif --=20 2.20.1