From patchwork Thu Apr 1 09:22:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrey Gruzdev X-Patchwork-Id: 12177607 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 5CB86C433ED for ; Thu, 1 Apr 2021 09:28:07 +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 D5CFF60FE9 for ; Thu, 1 Apr 2021 09:28:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D5CFF60FE9 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=virtuozzo.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:52322 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRtcT-00049h-NL for qemu-devel@archiver.kernel.org; Thu, 01 Apr 2021 05:28:05 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52988) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRtXE-0006s7-Va for qemu-devel@nongnu.org; Thu, 01 Apr 2021 05:22:40 -0400 Received: from relay.sw.ru ([185.231.240.75]:49892) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lRtX5-0006Ur-6b for qemu-devel@nongnu.org; Thu, 01 Apr 2021 05:22:40 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=MIME-Version:Message-Id:Date:Subject:From: Content-Type; bh=ekx+sVi13apei4mNX/i6GowawZdZltdKXlwiXY93H5Y=; b=gcTYmw/5tf4J su82W3sNu1v3CDvhZFGxDL7V/1yCq6AceDAHVmhv4/HhCOEDJi+l7SD9/COrX0lGQE2i3x4e58DqS HLM6D5K2nWeHSQK9ImWscotBUJcGNpqXnY+NvRRbn0ApXE2MaLCoy/Hwv4VMusvMD2cv51AO0Q16O J5ySU=; Received: from [192.168.15.162] (helo=andrey-MS-7B54.sw.ru) by relay.sw.ru with esmtp (Exim 4.94) (envelope-from ) id 1lRtX1-000DxR-AD; Thu, 01 Apr 2021 12:22:27 +0300 From: Andrey Gruzdev To: qemu-devel@nongnu.org Cc: Den Lunev , Eric Blake , Paolo Bonzini , Juan Quintela , "Dr . David Alan Gilbert" , Markus Armbruster , Peter Xu , David Hildenbrand , Andrey Gruzdev Subject: [PATCH for-6.0 v1 0/4] migration: Fixes to the 'background-snapshot' code Date: Thu, 1 Apr 2021 12:22:22 +0300 Message-Id: <20210401092226.102804-1-andrey.gruzdev@virtuozzo.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Received-SPF: pass client-ip=185.231.240.75; envelope-from=andrey.gruzdev@virtuozzo.com; helo=relay.sw.ru X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Changes v0->v1: * Fixes to coding style and commit messages * Renamed 'bs' to 'block' in migration/ram.c background snapshot code This patch series contains: * Fix to the issue with occasionally truncated non-iterable device state * Solution to compatibility issues with virtio-balloon device * Fix to the issue when discarded or never populated pages miss UFFD write protection and get into migration stream in dirty state * Renaming of 'bs' to commonly used 'block' in migration/ram.c background snapshot code Andrey Gruzdev (4): migration: Fix missing qemu_fflush() on buffer file in bg_migration_thread migration: Inhibit virtio-balloon for the duration of background snapshot migration: Pre-fault memory before starting background snasphot migration: Rename 'bs' to 'block' in background snapshot code hw/virtio/virtio-balloon.c | 8 ++- include/migration/misc.h | 2 + migration/migration.c | 22 ++++++- migration/ram.c | 119 ++++++++++++++++++++++++++----------- migration/ram.h | 1 + 5 files changed, 115 insertions(+), 37 deletions(-)