From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 928FEC433EC for ; Fri, 19 Mar 2021 19:34:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 55D526196B for ; Fri, 19 Mar 2021 19:34:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231193AbhCSTeX (ORCPT ); Fri, 19 Mar 2021 15:34:23 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:10302 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230484AbhCSTeC (ORCPT ); Fri, 19 Mar 2021 15:34:02 -0400 Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 12JJXZeS163337; Fri, 19 Mar 2021 15:34:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=EL0EXsKdn+CdnE+hMLx4Kn1Qd6h/HPL7TktJ9faigO8=; b=VKky4RZmsxfliRmKcwXy7F7ujTPFAoGO3EOqPH/IwpQxtH0ozTsb1Rd+Z7nrSF2POpYT U1/4n9phA3jYIHKwoNVvwAESYOGHcFEgI7K8JPZYXOWM3NbzueNSgs9Skkp06+SFC/P7 c+hZprAIXgz48TQhiMkS7972XTAI/VYqbaKe3/FH3DRdH7c4z6eD7+aOoYRWGf+CKZUH odoYBti19bdcIHVBvJfSB1y93gczC66HVycLtVouU1ggGk46yCV6OtO25KJ08sB8LlUz NHiPYFu8kVB0agQ8nihMc9iMxv66LZPH7WDw03X7lNeh9k4OV+fSRYbaKmyDPUURDqff pw== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 37c2vqn2gs-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Mar 2021 15:34:01 -0400 Received: from m0127361.ppops.net (m0127361.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 12JJXwH2164925; Fri, 19 Mar 2021 15:34:01 -0400 Received: from ppma03fra.de.ibm.com (6b.4a.5195.ip4.static.sl-reverse.com [149.81.74.107]) by mx0a-001b2d01.pphosted.com with ESMTP id 37c2vqn2g6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Mar 2021 15:34:01 -0400 Received: from pps.filterd (ppma03fra.de.ibm.com [127.0.0.1]) by ppma03fra.de.ibm.com (8.16.0.43/8.16.0.43) with SMTP id 12JJWWuu018953; Fri, 19 Mar 2021 19:33:59 GMT Received: from b06cxnps3074.portsmouth.uk.ibm.com (d06relay09.portsmouth.uk.ibm.com [9.149.109.194]) by ppma03fra.de.ibm.com with ESMTP id 378n18b649-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Mar 2021 19:33:58 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 12JJXthC35062160 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 19 Mar 2021 19:33:55 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BFB05A4054; Fri, 19 Mar 2021 19:33:55 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5A596A405F; Fri, 19 Mar 2021 19:33:55 +0000 (GMT) Received: from ibm-vm.ibmuc.com (unknown [9.145.2.56]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 19 Mar 2021 19:33:55 +0000 (GMT) From: Claudio Imbrenda To: linux-kernel@vger.kernel.org Cc: borntraeger@de.ibm.com, frankja@linux.ibm.com, david@redhat.com, cohuck@redhat.com, kvm@vger.kernel.org, linux-s390@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v1 1/2] s390/kvm: split kvm_s390_real_to_abs Date: Fri, 19 Mar 2021 20:33:53 +0100 Message-Id: <20210319193354.399587-2-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210319193354.399587-1-imbrenda@linux.ibm.com> References: <20210319193354.399587-1-imbrenda@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369,18.0.761 definitions=2021-03-19_10:2021-03-19,2021-03-19 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 phishscore=0 mlxlogscore=974 mlxscore=0 bulkscore=0 suspectscore=0 spamscore=0 clxscore=1015 adultscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103190130 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org A new function _kvm_s390_real_to_abs will apply prefixing to a real address with a given prefix value. The old kvm_s390_real_to_abs becomes now a wrapper around the new function. This is needed to avoid code duplication in vSIE. Cc: stable@vger.kernel.org Signed-off-by: Claudio Imbrenda --- arch/s390/kvm/gaccess.h | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h index daba10f76936..7c72a5e3449f 100644 --- a/arch/s390/kvm/gaccess.h +++ b/arch/s390/kvm/gaccess.h @@ -18,17 +18,14 @@ /** * kvm_s390_real_to_abs - convert guest real address to guest absolute address - * @vcpu - guest virtual cpu + * @prefix - guest prefix * @gra - guest real address * * Returns the guest absolute address that corresponds to the passed guest real - * address @gra of a virtual guest cpu by applying its prefix. + * address @gra of by applying the given prefix. */ -static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu, - unsigned long gra) +static inline unsigned long _kvm_s390_real_to_abs(u32 prefix, unsigned long gra) { - unsigned long prefix = kvm_s390_get_prefix(vcpu); - if (gra < 2 * PAGE_SIZE) gra += prefix; else if (gra >= prefix && gra < prefix + 2 * PAGE_SIZE) @@ -36,6 +33,20 @@ static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu, return gra; } +/** + * kvm_s390_real_to_abs - convert guest real address to guest absolute address + * @vcpu - guest virtual cpu + * @gra - guest real address + * + * Returns the guest absolute address that corresponds to the passed guest real + * address @gra of a virtual guest cpu by applying its prefix. + */ +static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu, + unsigned long gra) +{ + return _kvm_s390_real_to_abs(kvm_s390_get_prefix(vcpu), gra); +} + /** * _kvm_s390_logical_to_effective - convert guest logical to effective address * @psw: psw of the guest -- 2.26.2