From patchwork Tue Sep 22 23:24:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirti Wankhede X-Patchwork-Id: 11793645 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D22181668 for ; Wed, 23 Sep 2020 00:16:42 +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 317B9207C3 for ; Wed, 23 Sep 2020 00:16:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="Q4C233PY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 317B9207C3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:52622 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kKsSe-0001eu-Cw for patchwork-qemu-devel@patchwork.kernel.org; Tue, 22 Sep 2020 20:16:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47302) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKsGo-000512-Pg for qemu-devel@nongnu.org; Tue, 22 Sep 2020 20:04:28 -0400 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:14580) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKsGh-0001GH-Oc for qemu-devel@nongnu.org; Tue, 22 Sep 2020 20:04:26 -0400 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Tue, 22 Sep 2020 16:59:02 -0700 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 22 Sep 2020 23:59:06 +0000 Received: from kwankhede-dev.nvidia.com (10.124.1.5) by mail.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 22 Sep 2020 23:58:58 +0000 From: Kirti Wankhede To: , Subject: [PATCH v26 16/17] vfio: Make vfio-pci device migration capable Date: Wed, 23 Sep 2020 04:54:18 +0530 Message-ID: <1600817059-26721-17-git-send-email-kwankhede@nvidia.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1600817059-26721-1-git-send-email-kwankhede@nvidia.com> References: <1600817059-26721-1-git-send-email-kwankhede@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1600819142; bh=FDG3vuJyY8+ryOkMz7MgJ657UGMIbqXwmaZOYNmOzn8=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:X-NVConfidentiality:MIME-Version:Content-Type; b=Q4C233PYP3gcpvPNkwnOtPFVNJkYQnZgmewMZlubw8ks7tTvFyUbcKAWusu4QD6r5 OQEWTo2ZDayBm8F6103hDWpMicV7HkidjvQApvo+ncenOgF0GjAE0Ucwy/huw5U8Ww trYkgekjKq4WcFtsV1uziGQcSiOJIBnXhbZiS10T0dw5Pgx9wbBkBWb3rTMVNi8lUd 3tPrlW+VnZT7moJ0pdCcILPERvMWEQ41WAiYdQ2lwJeEr9PjY+VbX/rsY1gaaW3nG4 3f4heRwKxJjPTz8ewidRtxXauo3/8cTVAuja99XK4JyrywsOcrHFjS8qypMer/jE6Q c84Joq9JHPX2w== Received-SPF: pass client-ip=216.228.121.65; envelope-from=kwankhede@nvidia.com; helo=hqnvemgate26.nvidia.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/22 19:57:16 X-ACL-Warn: Detected OS = Windows 7 or 8 [fuzzy] X-Spam_score_int: -85 X-Spam_score: -8.6 X-Spam_bar: -------- X-Spam_report: (-8.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.455, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_HI=-5, 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: cohuck@redhat.com, aik@ozlabs.ru, Zhengxiao.zx@Alibaba-inc.com, shuangtai.tst@alibaba-inc.com, qemu-devel@nongnu.org, peterx@redhat.com, Kirti Wankhede , eauger@redhat.com, yi.l.liu@intel.com, quintela@redhat.com, ziye.yang@intel.com, armbru@redhat.com, mlevitsk@redhat.com, pasic@linux.ibm.com, felipe@nutanix.com, zhi.a.wang@intel.com, kevin.tian@intel.com, yan.y.zhao@intel.com, dgilbert@redhat.com, changpeng.liu@intel.com, eskultet@redhat.com, Ken.Xue@amd.com, jonathan.davies@nutanix.com, pbonzini@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" If the device is not a failover primary device, call vfio_migration_probe() and vfio_migration_finalize() to enable migration support for those devices that support it respectively to tear it down again. Removed vfio_pci_vmstate structure. Removed migration blocker from VFIO PCI device specific structure and use migration blocker from generic structure of VFIO device. Signed-off-by: Kirti Wankhede Reviewed-by: Neo Jia Reviewed-by: Dr. David Alan Gilbert Reviewed-by: Cornelia Huck --- hw/vfio/pci.c | 28 ++++++++-------------------- hw/vfio/pci.h | 1 - 2 files changed, 8 insertions(+), 21 deletions(-) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 9968cc553391..2418a448ebca 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2872,17 +2872,6 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) return; } - if (!pdev->failover_pair_id) { - error_setg(&vdev->migration_blocker, - "VFIO device doesn't support migration"); - ret = migrate_add_blocker(vdev->migration_blocker, errp); - if (ret) { - error_free(vdev->migration_blocker); - vdev->migration_blocker = NULL; - return; - } - } - vdev->vbasedev.name = g_path_get_basename(vdev->vbasedev.sysfsdev); vdev->vbasedev.ops = &vfio_pci_ops; vdev->vbasedev.type = VFIO_DEVICE_TYPE_PCI; @@ -3152,6 +3141,13 @@ static void vfio_realize(PCIDevice *pdev, Error **errp) } } + if (!pdev->failover_pair_id) { + ret = vfio_migration_probe(&vdev->vbasedev, errp); + if (ret) { + error_report("%s: Migration disabled", vdev->vbasedev.name); + } + } + vfio_register_err_notifier(vdev); vfio_register_req_notifier(vdev); vfio_setup_resetfn_quirk(vdev); @@ -3166,11 +3162,6 @@ out_teardown: vfio_bars_exit(vdev); error: error_prepend(errp, VFIO_MSG_PREFIX, vdev->vbasedev.name); - if (vdev->migration_blocker) { - migrate_del_blocker(vdev->migration_blocker); - error_free(vdev->migration_blocker); - vdev->migration_blocker = NULL; - } } static void vfio_instance_finalize(Object *obj) @@ -3182,10 +3173,6 @@ static void vfio_instance_finalize(Object *obj) vfio_bars_finalize(vdev); g_free(vdev->emulated_config_bits); g_free(vdev->rom); - if (vdev->migration_blocker) { - migrate_del_blocker(vdev->migration_blocker); - error_free(vdev->migration_blocker); - } /* * XXX Leaking igd_opregion is not an oversight, we can't remove the * fw_cfg entry therefore leaking this allocation seems like the safest @@ -3213,6 +3200,7 @@ static void vfio_exitfn(PCIDevice *pdev) } vfio_teardown_msi(vdev); vfio_bars_exit(vdev); + vfio_migration_finalize(&vdev->vbasedev); } static void vfio_pci_reset(DeviceState *dev) diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h index 9f46af7e153f..0e3782b8e38a 100644 --- a/hw/vfio/pci.h +++ b/hw/vfio/pci.h @@ -173,7 +173,6 @@ struct VFIOPCIDevice { bool no_vfio_ioeventfd; bool enable_ramfb; VFIODisplay *dpy; - Error *migration_blocker; Notifier irqchip_change_notifier; };