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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 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 DAD3CC2D0DB for ; Fri, 24 Jan 2020 19:19:06 +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 AC84320838 for ; Fri, 24 Jan 2020 19:19:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AC84320838 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]:46796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iv4Tx-0004w4-RW for qemu-devel@archiver.kernel.org; Fri, 24 Jan 2020 14:19:05 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58138) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iv4Ss-0004OB-5j for qemu-devel@nongnu.org; Fri, 24 Jan 2020 14:17:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iv4Sq-0000pn-O7 for qemu-devel@nongnu.org; Fri, 24 Jan 2020 14:17:57 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:20056 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 1iv4Sq-0000nu-Jj for qemu-devel@nongnu.org; Fri, 24 Jan 2020 14:17:56 -0500 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 00OJCdhV168460 for ; Fri, 24 Jan 2020 14:17:55 -0500 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0b-001b2d01.pphosted.com with ESMTP id 2xr61p10wv-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 24 Jan 2020 14:17:55 -0500 Received: from localhost by e06smtp01.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) Fri, 24 Jan 2020 19:17:50 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 00OJHn3s50331712 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 24 Jan 2020 19:17:49 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A00B411C052; Fri, 24 Jan 2020 19:17:49 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 6486911C054; Fri, 24 Jan 2020 19:17:49 +0000 (GMT) Received: from oc2783563651 (unknown [9.152.224.110]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 24 Jan 2020 19:17:49 +0000 (GMT) Date: Fri, 24 Jan 2020 20:17:48 +0100 From: Halil Pasic To: Igor Mammedov Subject: Re: [PATCH REPOST v3 78/80] hostmem: fix strict bind policy In-Reply-To: <1579779525-20065-79-git-send-email-imammedo@redhat.com> References: <1579779525-20065-1-git-send-email-imammedo@redhat.com> <1579779525-20065-79-git-send-email-imammedo@redhat.com> Organization: IBM X-Mailer: Claws Mail 3.11.1 (GTK+ 2.24.31; x86_64-redhat-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 x-cbid: 20012419-4275-0000-0000-0000039AA181 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20012419-4276-0000-0000-000038AEB2B4 Message-Id: <20200124201748.1882b620.pasic@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-01-24_06:2020-01-24, 2020-01-24 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 bulkscore=0 mlxscore=0 phishscore=0 priorityscore=1501 mlxlogscore=999 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1911200001 definitions=main-2001240157 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.158.5 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: Cornelia Huck , pbonzini@redhat.com, rth@twiddle.net, qemu-devel@nongnu.org, ehabkost@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, 23 Jan 2020 12:38:43 +0100 Igor Mammedov wrote: > With main RAM now converted to hostmem backends, there is no > point in keeping global mem_prealloc around, so alias > -mem-prealloc to "memory-backend.prealloc=on" > machine compat[*] property and make mem_prealloc a local > variable to only stir registration of compat property. > > *) currently user accessible -global works only with DEVICE > based objects and extra work is needed to make it work > with hostmem backends. But that is convenience option > and out of scope of this already huge refactoring. > Hence machine compat properties were used. AFAIU because of this something like -global memory-backend-file.share=on (as proposed by https://lists.nongnu.org/archive/html/qemu-devel/2019-12/msg00531.html) can not be used to make the main RAM shared (e.g. for vhost on s390x). Or am I wrong? If not, is -global still the way we want to make this work for non-numa machines, or did I miss updates? Regards, Halil