From patchwork Fri Jun 30 07:36:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13297700 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B9E75EB64DD for ; Fri, 30 Jun 2023 07:51:11 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qF8tH-0001tO-69; Fri, 30 Jun 2023 03:50:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qF8tE-0001sI-Fy for qemu-devel@nongnu.org; Fri, 30 Jun 2023 03:50:00 -0400 Received: from mga03.intel.com ([134.134.136.65]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qF8tB-0002bO-Fv for qemu-devel@nongnu.org; Fri, 30 Jun 2023 03:50:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1688111397; x=1719647397; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=UonVnseO0/8jSavni+NzU+cds/17q+LxzWG65jpZrYY=; b=Rsfq8JJwiFcNF70IV89kTIPw0XtiqNx4keqd79+/OSk+4HG70x1PRTlV HN0OY33ZRveTxndwT2iL8NrfDIM+iOAERJdRJH3f37zuyIky29D9dp0Kb o0BRnIOjUq9WsZhDipP1KYNVbmO+3GSUOn7z1B8u35zJf1CeuPs0EAyiA E2gCzDLxpPXPiMz7olci1UdKAfD0kHj+cVuzy8ep34Zwo726RjNPqbrR2 QaQ13Et5HhC/loRNOujL6EoSQ2g7/4BDcOBmv3PSGJ4azrUVekNBY/HvO 3yu70Ua/P6DrFcsEQ6vjqcwuvtcvNCQKg9DAFDNy0aYWBE+WE6S90E6NU w==; X-IronPort-AV: E=McAfee;i="6600,9927,10756"; a="365824431" X-IronPort-AV: E=Sophos;i="6.01,170,1684825200"; d="scan'208";a="365824431" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2023 00:49:53 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10756"; a="841770765" X-IronPort-AV: E=Sophos;i="6.01,170,1684825200"; d="scan'208";a="841770765" Received: from duan-server-s2600bt.bj.intel.com ([10.240.192.147]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jun 2023 00:49:50 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, joao.m.martins@oracle.com, avihaih@nvidia.com, chao.p.peng@intel.com Subject: [PATCH v5 0/7] VFIO migration related refactor and bug fix Date: Fri, 30 Jun 2023 15:36:32 +0800 Message-Id: <20230630073637.124234-1-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Received-SPF: pass client-ip=134.134.136.65; envelope-from=zhenzhong.duan@intel.com; helo=mga03.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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-bounces+qemu-devel=archiver.kernel.org@nongnu.org Hello, PATCH4,5,7 refactors the VFIO migration blocker related code based on suggestions from Joao and Cedric, so that code is simpler and redundant "Migration disabled" isn't printed. But before that works, also found some hotplug bugs when testing blocker adding failed case. PATCH1-3,6 fix them. See patch description for details. v5: PATCH1-2 are not sent in v5 as Cedric already picked them Minor adjust on PATCH3 per Joao and Cedric Move PATCH4 after refactor patch per Joao Split refactor patch to three patches, PATCH4,5,7 v4: Rebased on [1] which contains Avihai's patchset [2] Add more patches to fix resource leak issue, split based on different fix TAG per Joao Change to not print "Migration disabled" with explicit enable-migration=off per Avihai Rename vfio_block_giommu_migration to vfio_viommu_preset per Joao v3: Add PATCH1,2 to fix hotplug bug Fix bugs in PATCH3 Avihai and Joao pointed out Tested vfio hotplug/unplug with vfio migration supported and unsupported cases, and different param of enable-migration=[on/off/auto] and -only-migratable. [1] https://github.com/legoater/qemu/tree/vfio-next [2] https://lists.nongnu.org/archive/html/qemu-devel/2023-06/msg06117.html Thanks Zhenzhong Duan (5): vfio/pci: Disable INTx in vfio_realize error path vfio/migration: Return bool type for some vfio migration related functions vfio/migration: Change vIOMMU blocker from global to per device vfio/migration: Free resources when vfio_migration_realize fails vfio/migration: Remove print of "Migration disabled" hw/vfio/common.c | 59 ++++------------------------------- hw/vfio/migration.c | 59 +++++++++++++++++++++++------------ hw/vfio/pci.c | 8 +++-- include/hw/vfio/vfio-common.h | 7 ++--- 4 files changed, 53 insertions(+), 80 deletions(-)