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: 1460929 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=virtuozzo.com header.i=@virtuozzo.com header.a=rsa-sha256 header.s=relay header.b=gcTYmw/5; dkim-atps=neutral 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 ozlabs.org (Postfix) with ESMTPS id 4F9yWL64KKz9sV5 for ; Thu, 1 Apr 2021 20:27:10 +1100 (AEDT) Received: from localhost ([::1]:50638 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lRtbY-0003R8-Jm for incoming@patchwork.ozlabs.org; Thu, 01 Apr 2021 05:27:08 -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+incoming=patchwork.ozlabs.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(-)