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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS autolearn=ham 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 E1087C169C4 for ; Tue, 29 Jan 2019 16:57:30 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 2AC952087F for ; Tue, 29 Jan 2019 16:57:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2AC952087F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.vnet.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43pt2v4kTCzDqKw for ; Wed, 30 Jan 2019 03:57:27 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=mwb@linux.vnet.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=linux.vnet.ibm.com Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 43pt0y42vyzDqKL for ; Wed, 30 Jan 2019 03:55:45 +1100 (AEDT) Received: from pps.filterd (m0098419.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x0TGtWhX107365 for ; Tue, 29 Jan 2019 11:55:42 -0500 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qarv4q1de-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 29 Jan 2019 11:55:42 -0500 Received: from localhost by e12.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, 29 Jan 2019 16:55:38 -0000 Received: from b01ledav004.gho.pok.ibm.com (b01ledav004.gho.pok.ibm.com [9.57.199.109]) by b01cxnp23032.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x0TGtbeW22806696 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 29 Jan 2019 16:55:37 GMT Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 583FA112065; Tue, 29 Jan 2019 16:55:37 +0000 (GMT) Received: from b01ledav004.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 45D5D112066; Tue, 29 Jan 2019 16:55:37 +0000 (GMT) Received: from ltcalpine2-lp20.aus.stglabs.ibm.com (unknown [9.40.195.203]) by b01ledav004.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 29 Jan 2019 16:55:37 +0000 (GMT) Received: from ltcalpine2-lp20.aus.stglabs.ibm.com (localhost [IPv6:::1]) by ltcalpine2-lp20.aus.stglabs.ibm.com (Postfix) with ESMTP id 9C93540B726F; Tue, 29 Jan 2019 10:55:36 -0600 (CST) Subject: [REPOST PATCH v07 0/5] powerpc/migration: Affinity fix for memory From: Michael Bringmann To: linuxppc-dev@lists.ozlabs.org, mwb@linux.vnet.ibm.com Date: Tue, 29 Jan 2019 10:55:36 -0600 User-Agent: StGit/0.18-105-g416a-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19012916-0060-0000-0000-0000030267FC X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00010499; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000277; SDB=6.01153535; UDB=6.00601407; IPR=6.00933901; MB=3.00025341; MTD=3.00000008; XFM=3.00000015; UTC=2019-01-29 16:55:39 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19012916-0061-0000-0000-0000481AA2CC Message-Id: <20190129165514.14612.16201.stgit@ltcalpine2-lp20.aus.stglabs.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:, , definitions=2019-01-29_13:, , 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=958 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1901290126 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Juliet Kim , Thomas Falcon , Tyrel Datwyler , Nathan Lynch Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The migration of LPARs across Power systems affects many attributes including that of the associativity of memory blocks. The patches in this set execute when a system is coming up fresh upon a migration target. They are intended to, * Recognize changes to the associativity of memory recorded in internal data structures when compared to the latest copies in the device tree (e.g. ibm,dynamic-memory, ibm,dynamic-memory-v2). * Recognize changes to the associativity mapping (e.g. ibm, associativity-lookup-arrays), locate all assigned memory blocks corresponding to each changed row, and readd all such blocks. * Generate calls to other code layers to reset the data structures related to associativity of memory. * Re-register the 'changed' entities into the target system. Re-registration of memory blocks mostly entails acting as if they have been newly hot-added into the target system. This code builds upon features introduced in a previous patch set that updates CPUs for affinity changes that may occur during LPM. Signed-off-by: Michael Bringmann Michael Bringmann (5): powerpc/drmem: Export 'dynamic-memory' loader powerpc/drmem: Add internal_flags feature migration/memory: Add hotplug flags READD_MULTIPLE migration/memory: Evaluate LMB assoc changes migration/memory: Support 'ibm,dynamic-memory-v2' --- Changes in v07: -- Provide more useful return value from dlpar_memory_readd_multiple Changes in v06: -- Rebase to powerpc next branch to account for recent code changes. -- Fix prototype problem when CONFIG_MEMORY_HOTPLUG not defined. Changes in v05: -- Add walk_drmem_lmbs_pairs to replace macro for_each_pair_lmb -- Use walk_drmem_lmbs_pairs and callback instead of local loop -- Provide dlpar_memory_readd_helper routine to compress some common code -- Move common structure from numa.c + hotplug-memory.c to header file. -- Clarify some comments. Changes in v04: -- Move dlpar_memory_readd_multiple() to patch with new ACTION constant. -- Move init of 'lmb->internal_flags' in init_drmem_v2_lmbs to patch with other references to flag. -- Correct spacing in one of the patches Changes in v03: -- Change operation to tag changed LMBs in DRMEM array instead of queuing a potentially huge number of structures. -- Added another hotplug queue event for CPU/memory operations -- Added internal_flags feature to DRMEM -- Improve the patch description language for the patch set. -- Revise patch set to queue worker for memory association updates directly to pseries worker queue.