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 AA2D8C433E9 for ; Mon, 22 Mar 2021 14:07:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70F5A6196C for ; Mon, 22 Mar 2021 14:07:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231138AbhCVOGg (ORCPT ); Mon, 22 Mar 2021 10:06:36 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:63584 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230467AbhCVOGH (ORCPT ); Mon, 22 Mar 2021 10:06:07 -0400 Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 12ME4CZT118087; Mon, 22 Mar 2021 10:06:07 -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=/FH/BY9cKHJnsdtLem9lZfE4bqb2oejz5WbHJAJtWLo=; b=o9AydZfQWQduFxlcHOSE+1ikbUG78EIYLh4rXAHnVY9AsdgkvI1KuFg8hFUU6Pleas5q bIvfsVZL7ObDLZ0TqBS3lCvKv81r9xb1GCdHSqgSxk8uUjnZi4A56fTft4wIA73nCmzs HhWs2p1Y0V7gUpQw05ZYvUyAnvk9yz+PEQLvBycra1g1eXirZo/+nAnrKu9oqEAHz+4H iBe1hDboNwKrOUNUfUoXvPqwj8hEiW4Iz9GWOJ/u6/ToZ0+a+XHepHjcNLdiShsoSFbo 6PPqEl0AbaAUwDj0BtkfPR5jA+IWZ4y+obAv+PTKz2CsYYX27/1j29IHYpEXyq2RINtN OQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 37ef8b2t8r-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Mar 2021 10:06:05 -0400 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 12ME5TZ2128701; Mon, 22 Mar 2021 10:06:05 -0400 Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 37ef8b2t86-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Mar 2021 10:06:05 -0400 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.16.0.43/8.16.0.43) with SMTP id 12ME3OaA010532; Mon, 22 Mar 2021 14:06:03 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma03ams.nl.ibm.com with ESMTP id 37df68a0p5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 22 Mar 2021 14:06:03 +0000 Received: from d06av22.portsmouth.uk.ibm.com (d06av22.portsmouth.uk.ibm.com [9.149.105.58]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 12ME601949021314 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 22 Mar 2021 14:06:01 GMT Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BF2BE4C04A; Mon, 22 Mar 2021 14:06:00 +0000 (GMT) Received: from d06av22.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5ABCD4C052; Mon, 22 Mar 2021 14:06:00 +0000 (GMT) Received: from ibm-vm.ibmuc.com (unknown [9.145.2.56]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 22 Mar 2021 14:06:00 +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, Thomas Huth Subject: [PATCH v2 1/2] s390/kvm: split kvm_s390_real_to_abs Date: Mon, 22 Mar 2021 15:05:58 +0100 Message-Id: <20210322140559.500716-2-imbrenda@linux.ibm.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210322140559.500716-1-imbrenda@linux.ibm.com> References: <20210322140559.500716-1-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=2021-03-22_07:2021-03-22,2021-03-22 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 phishscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 adultscore=0 mlxscore=0 mlxlogscore=999 spamscore=0 malwarescore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103220103 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 Reviewed-by: David Hildenbrand Reviewed-by: Thomas Huth --- 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