From patchwork Fri Jan 11 11:36:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 10757901 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C283814E5 for ; Fri, 11 Jan 2019 11:40:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B359929775 for ; Fri, 11 Jan 2019 11:40:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A6F68297BB; Fri, 11 Jan 2019 11:40:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 42E9129770 for ; Fri, 11 Jan 2019 11:40:32 +0000 (UTC) Received: from localhost ([127.0.0.1]:49897 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ghvAt-00088F-K6 for patchwork-qemu-devel@patchwork.kernel.org; Fri, 11 Jan 2019 06:40:31 -0500 Received: from eggs.gnu.org ([209.51.188.92]:35408) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ghv8B-00066P-8g for qemu-devel@nongnu.org; Fri, 11 Jan 2019 06:37:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ghv8A-0000Tq-4M for qemu-devel@nongnu.org; Fri, 11 Jan 2019 06:37:43 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:43630) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ghv89-0000Sv-L0 for qemu-devel@nongnu.org; Fri, 11 Jan 2019 06:37:41 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id x0BBNmQv057719 for ; Fri, 11 Jan 2019 06:37:40 -0500 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0a-001b2d01.pphosted.com with ESMTP id 2pxrd8xem1-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 11 Jan 2019 06:37:39 -0500 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 11 Jan 2019 11:37:37 -0000 Received: from b06cxnps4076.portsmouth.uk.ibm.com (9.149.109.198) by e06smtp02.uk.ibm.com (192.168.101.132) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 11 Jan 2019 11:37:35 -0000 Received: from d06av26.portsmouth.uk.ibm.com (d06av26.portsmouth.uk.ibm.com [9.149.105.62]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0BBbYXi7405852 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 11 Jan 2019 11:37:34 GMT Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9AA42AE04D; Fri, 11 Jan 2019 11:37:34 +0000 (GMT) Received: from d06av26.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DE7B6AE053; Fri, 11 Jan 2019 11:37:33 +0000 (GMT) Received: from s38lp20.lnxne.boe (unknown [9.145.47.158]) by d06av26.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 11 Jan 2019 11:37:33 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Date: Fri, 11 Jan 2019 12:36:56 +0100 X-Mailer: git-send-email 2.14.3 In-Reply-To: <20190111113657.66195-1-frankja@linux.ibm.com> References: <20190111113657.66195-1-frankja@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19011111-0008-0000-0000-000002AF7235 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19011111-0009-0000-0000-0000221B7BEC Message-Id: <20190111113657.66195-2-frankja@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-01-11_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=3 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=867 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901110096 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 1/2] s390x: Diag308 move common parameter checking into function X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 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, qemu-stable@nongnu.org, david@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Let's make that switch statement a bit shorter. Signed-off-by: Janosch Frank --- target/s390x/diag.c | 34 ++++++++++++++++++---------------- 1 file changed, 18 insertions(+), 16 deletions(-) diff --git a/target/s390x/diag.c b/target/s390x/diag.c index acb0f3d4af..cfd7222ddd 100644 --- a/target/s390x/diag.c +++ b/target/s390x/diag.c @@ -53,6 +53,22 @@ int handle_diag_288(CPUS390XState *env, uint64_t r1, uint64_t r3) #define DIAG_308_RC_NO_CONF 0x0102 #define DIAG_308_RC_INVALID 0x0402 +static int diag308_parm_check(CPUS390XState *env, uint64_t r1, uint64_t addr, + uintptr_t ra) +{ + if ((r1 & 1) || (addr & 0x0fffULL)) { + s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra); + return -EINVAL; + } + if (!address_space_access_valid(&address_space_memory, addr, + sizeof(IplParameterBlock), true, + MEMTXATTRS_UNSPECIFIED)) { + s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra); + return -EFAULT; + } + return 0; +} + void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra) { CPUState *cs = CPU(s390_env_get_cpu(env)); @@ -81,14 +97,7 @@ void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3, uintptr_t ra) s390_ipl_reset_request(cs, S390_RESET_REIPL); break; case 5: - if ((r1 & 1) || (addr & 0x0fffULL)) { - s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra); - return; - } - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), false, - MEMTXATTRS_UNSPECIFIED)) { - s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra); + if (diag308_parm_check(env, r1, addr, ra)) { return; } iplb = g_new0(IplParameterBlock, 1); @@ -111,14 +120,7 @@ out: g_free(iplb); return; case 6: - if ((r1 & 1) || (addr & 0x0fffULL)) { - s390_program_interrupt(env, PGM_SPECIFICATION, ILEN_AUTO, ra); - return; - } - if (!address_space_access_valid(&address_space_memory, addr, - sizeof(IplParameterBlock), true, - MEMTXATTRS_UNSPECIFIED)) { - s390_program_interrupt(env, PGM_ADDRESSING, ILEN_AUTO, ra); + if (diag308_parm_check(env, r1, addr, ra)) { return; } iplb = s390_ipl_get_iplb();