From patchwork Tue Sep 22 23:24:08 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirti Wankhede X-Patchwork-Id: 1369521 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; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.a=rsa-sha256 header.s=n1 header.b=ieyKPfB/; 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 4Bwz4z6Bkcz9sR4 for ; Wed, 23 Sep 2020 10:07:15 +1000 (AEST) Received: from localhost ([::1]:58762 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kKsJV-0000QD-Pt for incoming@patchwork.ozlabs.org; Tue, 22 Sep 2020 20:07:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46934) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKsFS-0003GN-51 for qemu-devel@nongnu.org; Tue, 22 Sep 2020 20:03:02 -0400 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:16927) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kKsFQ-0001AY-9s for qemu-devel@nongnu.org; Tue, 22 Sep 2020 20:03:01 -0400 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Tue, 22 Sep 2020 16:56:19 -0700 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 22 Sep 2020 23:57:44 +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 23:57:36 +0000 From: Kirti Wankhede To: , Subject: [PATCH v26 06/17] vfio: Add migration state change notifier Date: Wed, 23 Sep 2020 04:54:08 +0530 Message-ID: <1600817059-26721-7-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=1600818979; bh=t25FEilbNETTC91wdWv6zWhCI1IxPHxhtB91G+0YP+8=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:X-NVConfidentiality:MIME-Version:Content-Type; b=ieyKPfB/XlnmvIiesURO7pfOzy+Xy6L+UnTcswVAPQV4NINZG+l8n59ZGSbMtEyjP rkkUEAF947ybcd7KR/FaLpP7lg+A43AzN2yBK0qArK2MGGPPosJE4KyJGDbGj7i76y OHd5JNu83TfeG7pv01ETAbOIKAd5ebffvZFNCbGFcBOYqXjB6vTnyfU19UPyxZ11rs aZmj78ZKuGIK0r+h65uONb4B7U0khiMHuijB1xT0lkyIW25e/1GweYNOe/dd3tJ61a 6oV4iPbs4qm5eWPEEJbyF0JxKfdRLFmOS/3RD4skNGWN7MIsiUSMICmJoIoG4ea7fw eJjX7YKoPR/9A== Received-SPF: pass client-ip=216.228.121.143; envelope-from=kwankhede@nvidia.com; helo=hqnvemgate24.nvidia.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/22 19:57:06 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+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Added migration state change notifier to get notification on migration state change. These states are translated to VFIO device state and conveyed to vendor driver. Signed-off-by: Kirti Wankhede Reviewed-by: Neo Jia Reviewed-by: Dr. David Alan Gilbert --- hw/vfio/migration.c | 29 +++++++++++++++++++++++++++++ hw/vfio/trace-events | 5 +++-- include/hw/vfio/vfio-common.h | 1 + 3 files changed, 33 insertions(+), 2 deletions(-) diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index a30d628ba963..f650fe9fc3c8 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -199,6 +199,28 @@ static void vfio_vmstate_change(void *opaque, int running, RunState state) } } +static void vfio_migration_state_notifier(Notifier *notifier, void *data) +{ + MigrationState *s = data; + VFIODevice *vbasedev = container_of(notifier, VFIODevice, migration_state); + int ret; + + trace_vfio_migration_state_notifier(vbasedev->name, + MigrationStatus_str(s->state)); + + switch (s->state) { + case MIGRATION_STATUS_CANCELLING: + case MIGRATION_STATUS_CANCELLED: + case MIGRATION_STATUS_FAILED: + ret = vfio_migration_set_state(vbasedev, + ~(VFIO_DEVICE_STATE_SAVING | VFIO_DEVICE_STATE_RESUMING), + VFIO_DEVICE_STATE_RUNNING); + if (ret) { + error_report("%s: Failed to set state RUNNING", vbasedev->name); + } + } +} + static int vfio_migration_init(VFIODevice *vbasedev, struct vfio_region_info *info) { @@ -221,6 +243,8 @@ static int vfio_migration_init(VFIODevice *vbasedev, vbasedev->vm_state = qemu_add_vm_change_state_handler(vfio_vmstate_change, vbasedev); + vbasedev->migration_state.notify = vfio_migration_state_notifier; + add_migration_state_change_notifier(&vbasedev->migration_state); return ret; } @@ -263,6 +287,11 @@ add_blocker: void vfio_migration_finalize(VFIODevice *vbasedev) { + + if (vbasedev->migration_state.notify) { + remove_migration_state_change_notifier(&vbasedev->migration_state); + } + if (vbasedev->vm_state) { qemu_del_vm_change_state_handler(vbasedev->vm_state); } diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 6524734bf7b4..bcb3fa7314d7 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -149,5 +149,6 @@ vfio_display_edid_write_error(void) "" # migration.c vfio_migration_probe(const char *name, uint32_t index) " (%s) Region %d" -vfio_migration_set_state(char *name, uint32_t state) " (%s) state %d" -vfio_vmstate_change(char *name, int running, const char *reason, uint32_t dev_state) " (%s) running %d reason %s device state %d" +vfio_migration_set_state(const char *name, uint32_t state) " (%s) state %d" +vfio_vmstate_change(const char *name, int running, const char *reason, uint32_t dev_state) " (%s) running %d reason %s device state %d" +vfio_migration_state_notifier(const char *name, const char *state) " (%s) state %s" diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 25e3b1a3b90a..49c7c7a0e29a 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -123,6 +123,7 @@ typedef struct VFIODevice { VMChangeStateEntry *vm_state; uint32_t device_state; int vm_running; + Notifier migration_state; } VFIODevice; struct VFIODeviceOps {