From patchwork Tue Feb 12 01:16:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Collin Walling X-Patchwork-Id: 10807111 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 0AADD1399 for ; Tue, 12 Feb 2019 01:20:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E94102AC22 for ; Tue, 12 Feb 2019 01:20:28 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D65E02AC25; Tue, 12 Feb 2019 01:20:28 +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 5DA042AC22 for ; Tue, 12 Feb 2019 01:20:28 +0000 (UTC) Received: from localhost ([127.0.0.1]:59266 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtMkN-0002Gx-O4 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 11 Feb 2019 20:20:27 -0500 Received: from eggs.gnu.org ([209.51.188.92]:56861) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtMhX-0000uj-VR for qemu-devel@nongnu.org; Mon, 11 Feb 2019 20:17:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gtMhJ-0006FG-QQ for qemu-devel@nongnu.org; Mon, 11 Feb 2019 20:17:24 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:35268 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 1gtMhA-00065d-Hy for qemu-devel@nongnu.org; Mon, 11 Feb 2019 20:17:09 -0500 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1C18rPj129333 for ; Mon, 11 Feb 2019 20:17:05 -0500 Received: from e16.ny.us.ibm.com (e16.ny.us.ibm.com [129.33.205.206]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qkk532f15-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 11 Feb 2019 20:17:05 -0500 Received: from localhost by e16.ny.us.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, 12 Feb 2019 01:17:00 -0000 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp22034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1C1GxhD22282286 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 12 Feb 2019 01:17:00 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D8FDDAE05F; Tue, 12 Feb 2019 01:16:59 +0000 (GMT) Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id CB988AE062; Tue, 12 Feb 2019 01:16:59 +0000 (GMT) Received: from T470p.pok.ibm.com (unknown [9.56.58.16]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 12 Feb 2019 01:16:59 +0000 (GMT) From: Collin Walling To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org Date: Mon, 11 Feb 2019 20:16:56 -0500 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190212011657.18324-1-walling@linux.ibm.com> References: <20190212011657.18324-1-walling@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19021201-0072-0000-0000-000003F89125 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010579; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000279; SDB=6.01159749; UDB=6.00605241; IPR=6.00940295; MB=3.00025535; MTD=3.00000008; XFM=3.00000015; UTC=2019-02-12 01:17:03 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19021201-0073-0000-0000-00004B26D2B7 Message-Id: <20190212011657.18324-2-walling@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-02-12_01:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902120006 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH v2 2/3] s390x/cpumodel: default enable mepoch for z14 and later 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: pasic@linux.ibm.com, borntraeger@de.ibm.com, rth@twiddle.net, cohuck@redhat.com, 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 Latest systems and host kernels support mepoch, which is a feature that was meant to be supported for z14 GA1 from the get-go. Let's copy it to the z14 GA1 default CPU model. Machines s390-ccw-virtio-3.1 and older will retain the old CPU models and will not provide this bit nor the extended PTFF functions in the default model. Signed-off-by: Collin Walling Reviewed-by: David Hildenbrand --- @Christian, @David: I elected to not add your r-b's to this patch since I've added some code to disable feature groups. I'd like to know what you both think :) --- hw/s390x/s390-virtio-ccw.c | 2 ++ target/s390x/cpu_models.c | 24 ++++++++++++++++++++++++ target/s390x/cpu_models.h | 2 ++ target/s390x/gen-features.c | 2 ++ 4 files changed, 30 insertions(+) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index fd9d0b0542..643265f0b4 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -757,6 +757,8 @@ DEFINE_CCW_MACHINE(4_0, "4.0", true); static void ccw_machine_3_1_instance_options(MachineState *machine) { ccw_machine_4_0_instance_options(machine); + s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH); + s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF); } static void ccw_machine_3_1_class_options(MachineClass *mc) diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index b42b5fd327..d75a20e49d 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -117,6 +117,30 @@ void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat) } } +void s390_cpudef_group_featoff_greater(uint8_t gen, uint8_t ec_ga, + S390FeatGroup group) +{ + const S390FeatGroupDef *group_def = s390_feat_group_def(group); + S390FeatBitmap group_def_off; + int i; + + bitmap_complement(group_def_off, group_def->feat, S390_FEAT_MAX); + + for (i = 0; i < ARRAY_SIZE(s390_cpu_defs); i++) { + const S390CPUDef *cpu_def = &s390_cpu_defs[i]; + + if (cpu_def->gen < gen) { + continue; + } + if (cpu_def->gen == gen && cpu_def->ec_ga < ec_ga) { + continue; + } + + bitmap_and((unsigned long *)&cpu_def->default_feat, + cpu_def->default_feat, group_def_off, S390_FEAT_MAX); + } +} + uint32_t s390_get_hmfai(void) { static S390CPU *cpu; diff --git a/target/s390x/cpu_models.h b/target/s390x/cpu_models.h index 11cf5386fb..174a99e561 100644 --- a/target/s390x/cpu_models.h +++ b/target/s390x/cpu_models.h @@ -75,6 +75,8 @@ struct S390CPUModel { void s390_cpudef_featoff(uint8_t gen, uint8_t ec_ga, S390Feat feat); void s390_cpudef_featoff_greater(uint8_t gen, uint8_t ec_ga, S390Feat feat); +void s390_cpudef_group_featoff_greater(uint8_t gen, uint8_t ec_ga, + S390FeatGroup group); uint32_t s390_get_hmfai(void); uint8_t s390_get_mha_pow(void); uint32_t s390_get_ibc_val(void); diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c index 70015eaaf5..4770f00105 100644 --- a/target/s390x/gen-features.c +++ b/target/s390x/gen-features.c @@ -550,6 +550,8 @@ static uint16_t default_GEN14_GA1[] = { S390_FEAT_GROUP_MSA_EXT_6, S390_FEAT_GROUP_MSA_EXT_7, S390_FEAT_GROUP_MSA_EXT_8, + S390_FEAT_MULTIPLE_EPOCH, + S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF, }; /* QEMU (CPU model) features */