From patchwork Tue Mar 10 13:40:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 11429487 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6D40B139A for ; Tue, 10 Mar 2020 13:47:20 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4D67120637 for ; Tue, 10 Mar 2020 13:47:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D67120637 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:33468 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jBfE7-0002q9-CO for patchwork-qemu-devel@patchwork.kernel.org; Tue, 10 Mar 2020 09:47:19 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46431) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jBfC9-0007XF-Vj for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:45:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jBfC8-00066A-Q2 for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:45:17 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:37952 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 1jBfC8-00065I-Ih for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:45:16 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02ADinUL078188 for ; Tue, 10 Mar 2020 09:45:16 -0400 Received: from e06smtp07.uk.ibm.com (e06smtp07.uk.ibm.com [195.75.94.103]) by mx0b-001b2d01.pphosted.com with ESMTP id 2ynr9ddkky-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 10 Mar 2020 09:44:51 -0400 Received: from localhost by e06smtp07.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) Tue, 10 Mar 2020 13:42:12 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 02ADgBkX47055064 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 10 Mar 2020 13:42:12 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D1BF411C050; Tue, 10 Mar 2020 13:42:11 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A6F2D11C04C; Tue, 10 Mar 2020 13:42:10 +0000 (GMT) Received: from localhost.localdomain (unknown [9.145.23.214]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 10 Mar 2020 13:42:10 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Subject: [PATCH v8 09/15] s390x: protvirt: Set guest IPL PSW Date: Tue, 10 Mar 2020 09:40:02 -0400 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200310134008.130038-1-frankja@linux.ibm.com> References: <20200310134008.130038-1-frankja@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20031013-0028-0000-0000-000003E2B9A8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20031013-0029-0000-0000-000024A7FAAE Message-Id: <20200310134008.130038-10-frankja@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-10_07:2020-03-10, 2020-03-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 spamscore=0 suspectscore=1 malwarescore=0 adultscore=0 mlxscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 impostorscore=0 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003100091 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" 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 Reviewed-by: David Hildenbrand --- target/s390x/cpu.c | 22 +++++++++++++--------- 1 file changed, 13 insertions(+), 9 deletions(-) diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c index bcb9e47767..bb28493009 100644 --- a/target/s390x/cpu.c +++ b/target/s390x/cpu.c @@ -78,16 +78,20 @@ static bool s390_cpu_has_work(CPUState *cs) static void s390_cpu_load_normal(CPUState *s) { S390CPU *cpu = S390_CPU(s); - uint64_t spsw = ldq_phys(s->as, 0); - - cpu->env.psw.mask = spsw & PSW_MASK_SHORT_CTRL; - /* - * Invert short psw indication, so SIE will report a specification - * exception if it was not set. - */ - cpu->env.psw.mask ^= PSW_MASK_SHORTPSW; - cpu->env.psw.addr = spsw & PSW_MASK_SHORT_ADDR; + uint64_t spsw; + if (!s390_is_pv()) { + spsw = ldq_phys(s->as, 0); + cpu->env.psw.mask = spsw & PSW_MASK_SHORT_CTRL; + /* + * Invert short psw indication, so SIE will report a specification + * exception if it was not set. + */ + cpu->env.psw.mask ^= PSW_MASK_SHORTPSW; + cpu->env.psw.addr = spsw & PSW_MASK_SHORT_ADDR; + } else { + s390_cpu_set_state(S390_CPU_STATE_LOAD, cpu); + } s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu); } #endif