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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 55B29C432C0 for ; Thu, 28 Nov 2019 16:47:49 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2B6B9217AB for ; Thu, 28 Nov 2019 16:47:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2B6B9217AB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:50926 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iaMxI-0001OI-7U for qemu-devel@archiver.kernel.org; Thu, 28 Nov 2019 11:47:48 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49111) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iaMbJ-000557-Bq for qemu-devel@nongnu.org; Thu, 28 Nov 2019 11:25:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iaMbE-0001UC-0t for qemu-devel@nongnu.org; Thu, 28 Nov 2019 11:25:01 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:56420) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iaMbD-0001Fs-MM for qemu-devel@nongnu.org; Thu, 28 Nov 2019 11:24:59 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id xASGGaht023158 for ; Thu, 28 Nov 2019 11:24:56 -0500 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2wjaegrqdn-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 28 Nov 2019 11:24:56 -0500 Received: from localhost by e06smtp05.uk.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) Thu, 28 Nov 2019 16:24:51 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06avi18626390.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xASGOAjd31326684 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 28 Nov 2019 16:24:10 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0803511C050; Thu, 28 Nov 2019 16:24:50 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8CEB311C04A; Thu, 28 Nov 2019 16:24:49 +0000 (GMT) Received: from localhost.localdomain (unknown [9.145.11.73]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 28 Nov 2019 16:24:49 +0000 (GMT) Subject: Re: [PATCH 14/15] s390x: protvirt: Disable address checks for PV guest IO emulation To: Cornelia Huck References: <20191120114334.2287-1-frankja@linux.ibm.com> <20191120114334.2287-15-frankja@linux.ibm.com> <20191128171832.191f2636.cohuck@redhat.com> From: Janosch Frank Autocrypt: addr=frankja@linux.ibm.com; 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Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191128171832.191f2636.cohuck@redhat.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="ds8jlmq9eyxmZi4gtl1cd0Rt0hIs01JAj" X-TM-AS-GCONF: 00 x-cbid: 19112816-0020-0000-0000-0000039034C8 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19112816-0021-0000-0000-000021E743AE Message-Id: X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,18.0.572 definitions=2019-11-28_05:2019-11-28,2019-11-28 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 mlxscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 impostorscore=0 phishscore=0 mlxlogscore=729 spamscore=0 clxscore=1015 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1910280000 definitions=main-1911280136 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.156.1 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , pmorel@linux.ibm.com, david@redhat.com, qemu-devel@nongnu.org, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, mihajlov@linux.ibm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --ds8jlmq9eyxmZi4gtl1cd0Rt0hIs01JAj Content-Type: multipart/mixed; boundary="SdaOQb5d6iepdlyIudr3laud1yF2pn0nI" --SdaOQb5d6iepdlyIudr3laud1yF2pn0nI Content-Type: text/plain; charset=windows-1252 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 11/28/19 5:18 PM, Cornelia Huck wrote: > On Thu, 28 Nov 2019 17:10:38 +0100 > Janosch Frank wrote: >=20 >> On 11/28/19 4:28 PM, Thomas Huth wrote: >=20 >>> Would it make sense to hide all these changes in decode_basedisp_s() >>> instead? ... so that decode_basedisp_s() returns 0 if env->pv =3D=3D = true ? >>> ... or are there still cases where we need real values from >>> decode_basedisp_s() in case of env->pv=3D=3Dtrue? =20 >> >> I'd like to keep decode_basedisp_s() as is, but how about a static >> function in ioinst.c called something like get_address_from_regs()? >> >> It'll call decode_basedisp_s() or return 0. >=20 > We could do something like that; but do we ever get there for other > instruction formats as well? It feels a bit odd to single out this one.= >=20 sclp is rre (register address) and diag308 is rs-a (r1 is the address). --SdaOQb5d6iepdlyIudr3laud1yF2pn0nI-- --ds8jlmq9eyxmZi4gtl1cd0Rt0hIs01JAj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEEwGNS88vfc9+v45Yq41TmuOI4ufgFAl3f9NEACgkQ41TmuOI4 ufjdTA/+LTQvCMUj5EHPUJbH39WZbFQhWiJClw+AvAd3B8yINuO8FTJrs0dq04AO ggEM8h1jiVelKxTiZkwcQPxOw60NTWdBggSNboo76/czZyoqwcH6ZuqXot062Qk0 1rgJND2EgHVzKMQMvb/eCQj8izAGBzmMyuqHfdnOezSncc+XbzhPOAZXxhlTXd+B xMa1Ii8ODlCCrMtya3qgoCDxx4DMTANlUQo+OrkQQh2n/a1PWdZQSOWKZuO/9Z5U Ck55uewnwSptZDE3ClJlMFjyXn3q+hgxubmm0Xi5lThlTNqzsGRXp6qt4yCOEecB VgKMObbnVMkh0XlB1q4XhK1tRLXMfwESN659inC5ZUTBsVBg2sScEDyfK8H4iz+k HnFAslZ77JkYleFtvXMWoVtQl0uYt/dp4RLQAUAd5Hc5iKnd2wOEwzHK8lltONS3 eBrtZoWsVFe5IOU71pxe5TR3bmM7Wvv8n5f3KcFvHLT7nXsLKPG2VumJlwBeJl0m 8QBlQCKtrvVSc8reVNHiOCxysqh5mAAKb4Pp1QDOuLBqEUO0R5fThM8ZwT1/mXht sSUmhxQ4m4ISPPcX5tF9mYE6/OYRsW5PxQJoqi1j+CH2ncvLCHFzeHDDvEmELtWM EM8tXrOFxVV7pCT3xpWg7bHIPyzIll+SS7iHenmDzEjuBHQY2UM= =opr1 -----END PGP SIGNATURE----- --ds8jlmq9eyxmZi4gtl1cd0Rt0hIs01JAj--