From patchwork Tue Sep 26 11:32:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13399106 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 B9A29E7E628 for ; Tue, 26 Sep 2023 11:50:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ql6Y3-00034Y-1e; Tue, 26 Sep 2023 07:48:17 -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 1ql6Y0-00032v-CT for qemu-devel@nongnu.org; Tue, 26 Sep 2023 07:48:12 -0400 Received: from mgamail.intel.com ([192.55.52.93]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ql6Xy-0002Rw-AV for qemu-devel@nongnu.org; Tue, 26 Sep 2023 07:48:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1695728890; x=1727264890; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=eOLSePJdJDOXfN7Ts9iK0o6MoMszNhGrtDrjEECQckY=; b=SjPWzukCnx7afvEEIB03OWzHtWRx1JRjJuZg3a1XxpxLfJHBerFIR0j+ bECBZk6VFne1MI+nAe1KksxZrhlzRypI/hlmVOR/RN02ocyeR8T1xsWet YVXaW2FXB+EeyjnRLYhBAPPSgaZWLQ2WmH4ntp53UXDCkr9AxNKtoWtHA CXxGl3RPYVrxiXgIac/m4+Le15cSEvMyyyfnmD+4E2J99S6HDxxNtjV06 IY0Di5bbU3zm6nIQkdfrIhAgFVhfpIIOHM81BMKoAexlYlmIgS60YJakr DvDXuF7BnsaKhhPIpAKNjDxP/79B9fVCCSKFUBOCCJeBlkME+mXMSh+C/ Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="378825492" X-IronPort-AV: E=Sophos;i="6.03,177,1694761200"; d="scan'208";a="378825492" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2023 04:48:09 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10843"; a="748789780" X-IronPort-AV: E=Sophos;i="6.03,177,1694761200"; d="scan'208";a="748789780" Received: from duan-server-s2600bt.bj.intel.com ([10.240.192.147]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Sep 2023 04:48:05 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, eric.auger@redhat.com, peterx@redhat.com, jasowang@redhat.com, kevin.tian@intel.com, yi.l.liu@intel.com, yi.y.sun@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v2 10/12] vfio/common: Move VFIO reset handler registration to a group agnostic function Date: Tue, 26 Sep 2023 19:32:53 +0800 Message-Id: <20230926113255.1177834-11-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230926113255.1177834-1-zhenzhong.duan@intel.com> References: <20230926113255.1177834-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.93; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.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 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 Move the reset handler registration/unregistration to a place that is not group specific. vfio_[get/put]_address_space are the best places for that purpose. Signed-off-by: Eric Auger Signed-off-by: Yi Liu Signed-off-by: Zhenzhong Duan --- hw/vfio/common.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 65516b319e..12ebf2f11d 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1909,6 +1909,10 @@ static VFIOAddressSpace *vfio_get_address_space(AddressSpace *as) space->as = as; QLIST_INIT(&space->containers); + if (QLIST_EMPTY(&vfio_address_spaces)) { + qemu_register_reset(vfio_reset_handler, NULL); + } + QLIST_INSERT_HEAD(&vfio_address_spaces, space, list); return space; @@ -1920,6 +1924,9 @@ static void vfio_put_address_space(VFIOAddressSpace *space) QLIST_REMOVE(space, list); g_free(space); } + if (QLIST_EMPTY(&vfio_address_spaces)) { + qemu_unregister_reset(vfio_reset_handler, NULL); + } } /* @@ -2385,10 +2392,6 @@ static VFIOGroup *vfio_get_group(int groupid, AddressSpace *as, Error **errp) goto close_fd_exit; } - if (QLIST_EMPTY(&vfio_group_list)) { - qemu_register_reset(vfio_reset_handler, NULL); - } - QLIST_INSERT_HEAD(&vfio_group_list, group, next); return group; @@ -2417,10 +2420,6 @@ static void vfio_put_group(VFIOGroup *group) trace_vfio_put_group(group->fd); close(group->fd); g_free(group); - - if (QLIST_EMPTY(&vfio_group_list)) { - qemu_unregister_reset(vfio_reset_handler, NULL); - } } struct vfio_device_info *vfio_get_device_info(int fd)