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=-11.8 required=3.0 tests=BAYES_00, 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 0609DC433E0 for ; Wed, 10 Mar 2021 03:06:29 +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 B18E064DA3 for ; Wed, 10 Mar 2021 03:06:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B18E064DA3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:34722 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lJpB5-0008DS-Qo for qemu-devel@archiver.kernel.org; Tue, 09 Mar 2021 22:06:27 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:37412) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lJp7r-00053P-8Z; Tue, 09 Mar 2021 22:03:07 -0500 Received: from szxga06-in.huawei.com ([45.249.212.32]:4046) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lJp7o-0002sd-Ho; Tue, 09 Mar 2021 22:03:07 -0500 Received: from DGGEMS404-HUB.china.huawei.com (unknown [172.30.72.59]) by szxga06-in.huawei.com (SkyGuard) with ESMTP id 4DwH0X59SmzkWQf; Wed, 10 Mar 2021 11:01:32 +0800 (CST) Received: from DESKTOP-7FEPK9S.china.huawei.com (10.174.184.135) by DGGEMS404-HUB.china.huawei.com (10.3.19.204) with Microsoft SMTP Server id 14.3.498.0; Wed, 10 Mar 2021 11:02:51 +0800 From: Shenming Lu To: Alex Williamson , Kirti Wankhede , Cornelia Huck , , Subject: [PATCH v4 0/3] vfio: Some fixes and optimizations for VFIO migration Date: Wed, 10 Mar 2021 11:02:30 +0800 Message-ID: <20210310030233.1133-1-lushenming@huawei.com> X-Mailer: git-send-email 2.27.0.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.174.184.135] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.32; envelope-from=lushenming@huawei.com; helo=szxga06-in.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: , Cc: Lorenzo Pieralisi , Neo Jia , mst@redhat.com, Marc Zyngier , "Dr . David Alan Gilbert" , Eric Auger , yuzenghui@huawei.com, wanghaibin.wang@huawei.com, lushenming@huawei.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This patch set includes two fixes and one optimization for VFIO migration as blew: Patch 1-2: - Fix two ordering problems in migration. Patch 3: - Optimize the enabling process of the MSI-X vectors in migration. History: v3 -> v4 - Use msix_function_masked instead of msix_masked() in Patch 3. v2 -> v3: - Nit fixes. - Set error in migration stream for migration to fail in Patch 1. - Tested Patch 3 with a Windows guest. Thanks, Shenming Shenming Lu (3): vfio: Move the saving of the config space to the right place in VFIO migration vfio: Set the priority of the VFIO VM state change handler explicitly vfio: Avoid disabling and enabling vectors repeatedly in VFIO migration hw/vfio/migration.c | 28 +++++++++++++++++----------- hw/vfio/pci.c | 20 +++++++++++++++++--- 2 files changed, 34 insertions(+), 14 deletions(-) -- 2.19.1