From patchwork Wed Jan 8 16:13:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudio Imbrenda X-Patchwork-Id: 11324027 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 E85CE6C1 for ; Wed, 8 Jan 2020 16:13:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D14FB2077B for ; Wed, 8 Jan 2020 16:13:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729164AbgAHQN2 (ORCPT ); Wed, 8 Jan 2020 11:13:28 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:25376 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726186AbgAHQN0 (ORCPT ); Wed, 8 Jan 2020 11:13:26 -0500 Received: from pps.filterd (m0098399.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 008GD4xj028363 for ; Wed, 8 Jan 2020 11:13:26 -0500 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2xdhcjajtk-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 08 Jan 2020 11:13:25 -0500 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 8 Jan 2020 16:13:23 -0000 Received: from b06avi18626390.portsmouth.uk.ibm.com (9.149.26.192) by e06smtp05.uk.ibm.com (192.168.101.135) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Wed, 8 Jan 2020 16:13:20 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 008GCVDR45351252 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 8 Jan 2020 16:12:31 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 38CDDAE045; Wed, 8 Jan 2020 16:13:19 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E7C3DAE051; Wed, 8 Jan 2020 16:13:18 +0000 (GMT) Received: from p-imbrenda.boeblingen.de.ibm.com (unknown [9.152.224.108]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Wed, 8 Jan 2020 16:13:18 +0000 (GMT) From: Claudio Imbrenda To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, thuth@redhat.com, david@redhat.com, borntraeger@de.ibm.com, frankja@linux.ibm.com Subject: [kvm-unit-tests PATCH v5 3/4] s390x: lib: add SPX and STPX instruction wrapper Date: Wed, 8 Jan 2020 17:13:16 +0100 X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200108161317.268928-1-imbrenda@linux.ibm.com> References: <20200108161317.268928-1-imbrenda@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20010816-0020-0000-0000-0000039EF793 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20010816-0021-0000-0000-000021F657EC Message-Id: <20200108161317.268928-4-imbrenda@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-01-08_04:2020-01-08,2020-01-08 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 bulkscore=0 priorityscore=1501 impostorscore=0 mlxscore=0 mlxlogscore=897 suspectscore=1 clxscore=1015 phishscore=0 adultscore=0 spamscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-2001080133 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add a wrapper for the SET PREFIX and STORE PREFIX instructions, and use it instead of using inline assembly everywhere. Signed-off-by: Claudio Imbrenda --- lib/s390x/asm/arch_def.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/lib/s390x/asm/arch_def.h b/lib/s390x/asm/arch_def.h index 1a5e3c6..38c9dfa 100644 --- a/lib/s390x/asm/arch_def.h +++ b/lib/s390x/asm/arch_def.h @@ -284,4 +284,17 @@ static inline int servc(uint32_t command, unsigned long sccb) return cc; } +static inline void spx(uint32_t new_prefix) +{ + asm volatile("spx %0" : : "Q" (new_prefix) : "memory"); +} + +static inline uint32_t stpx(void) +{ + uint32_t prefix; + + asm volatile("stpx %0" : "=Q" (prefix)); + return prefix; +} + #endif