From patchwork Mon Oct 26 09:36:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kirti Wankhede X-Patchwork-Id: 11856381 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 6F9A914B7 for ; Mon, 26 Oct 2020 10:42:14 +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 1ED45207E8 for ; Mon, 26 Oct 2020 10:42:14 +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="phkP5Frq" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1ED45207E8 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]:55406 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kWzx6-0007TU-W7 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 26 Oct 2020 06:42:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40484) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWzSv-0000DE-NQ for qemu-devel@nongnu.org; Mon, 26 Oct 2020 06:11:01 -0400 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:13280) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kWzSt-0008N8-OY for qemu-devel@nongnu.org; Mon, 26 Oct 2020 06:11:01 -0400 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Mon, 26 Oct 2020 03:11:05 -0700 Received: from HQMAIL107.nvidia.com (172.20.187.13) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 26 Oct 2020 10:10:46 +0000 Received: from kwankhede-dev.nvidia.com (172.20.13.39) by mail.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Mon, 26 Oct 2020 10:10:38 +0000 From: Kirti Wankhede To: , Subject: [PATCH v29 06/17] vfio: Add migration state change notifier Date: Mon, 26 Oct 2020 15:06:16 +0530 Message-ID: <1603704987-20977-7-git-send-email-kwankhede@nvidia.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1603704987-20977-1-git-send-email-kwankhede@nvidia.com> References: <1603704987-20977-1-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=1603707065; bh=twUU0vJpHbpkbAsxZP8KcwT8PcCtOQKmeRTWhgvrErw=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:X-NVConfidentiality:MIME-Version:Content-Type; b=phkP5FrqrroKS56L70cQ5F+QBlw3y1p7J1Dy0xpAzMJWBcnoqelRd6viwUJMOC+Ea 4kMzhUqiBM+9FY/wR4VYjMz+DbiqpSh+oyoNZfGW6hnWOOxuiGMxEThZcUUeMKJqm1 NGdg/OQXAEE08u7vBI2YUXvsnaRuKMUAwGgm1+fO8zRqQnJ6UCGZnAy/zVeC2qXlY/ 2/wAS8qjw2AAo8eRhxY6SlfaxIaC/UPoNcFmrPqRN63E7Fyi+PrIw9kzK7e7PqnCap XtbzF/uOlLE7XlrdGaEhf1lcC3u9tErin+i2u3EBX2XOW1asUG1dXNytqJjG1CnUZl RsB5/OSwKF5yg== 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 = 2020/10/26 06:10:03 X-ACL-Warn: Detected OS = Windows 7 or 8 [fuzzy] X-Spam_score_int: -70 X-Spam_score: -7.1 X-Spam_bar: ------- X-Spam_report: (-7.1 / 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_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, zhi.wang.linux@gmail.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, artemp@nvidia.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, mcrossley@nvidia.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, dnigam@nvidia.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.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 Reviewed-by: Cornelia Huck --- hw/vfio/migration.c | 30 ++++++++++++++++++++++++++++++ hw/vfio/trace-events | 1 + include/hw/vfio/vfio-common.h | 2 ++ 3 files changed, 33 insertions(+) diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index 65ce735d667b..888a615d39ea 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -175,6 +175,30 @@ static void vfio_vmstate_change(void *opaque, int running, RunState state) (migration->device_state & mask) | value); } +static void vfio_migration_state_notifier(Notifier *notifier, void *data) +{ + MigrationState *s = data; + VFIOMigration *migration = container_of(notifier, VFIOMigration, + migration_state); + VFIODevice *vbasedev = migration->vbasedev; + 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 void vfio_migration_exit(VFIODevice *vbasedev) { VFIOMigration *migration = vbasedev->migration; @@ -190,6 +214,7 @@ static int vfio_migration_init(VFIODevice *vbasedev, { int ret; Object *obj; + VFIOMigration *migration; if (!vbasedev->ops->vfio_get_object) { return -EINVAL; @@ -217,8 +242,12 @@ static int vfio_migration_init(VFIODevice *vbasedev, goto err; } + migration = vbasedev->migration; + migration->vbasedev = vbasedev; migration->vm_state = qemu_add_vm_change_state_handler(vfio_vmstate_change, vbasedev); + migration->migration_state.notify = vfio_migration_state_notifier; + add_migration_state_change_notifier(&migration->migration_state); return 0; err: @@ -268,6 +297,7 @@ void vfio_migration_finalize(VFIODevice *vbasedev) if (vbasedev->migration) { VFIOMigration *migration = vbasedev->migration; + remove_migration_state_change_notifier(&migration->migration_state); qemu_del_vm_change_state_handler(migration->vm_state); vfio_migration_exit(vbasedev); } diff --git a/hw/vfio/trace-events b/hw/vfio/trace-events index 41de81f12f60..78d7d83b5ef8 100644 --- a/hw/vfio/trace-events +++ b/hw/vfio/trace-events @@ -150,3 +150,4 @@ vfio_display_edid_write_error(void) "" vfio_migration_probe(const char *name, uint32_t index) " (%s) Region %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 9a571f1fb552..2bd593ba38bb 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -59,10 +59,12 @@ typedef struct VFIORegion { } VFIORegion; typedef struct VFIOMigration { + struct VFIODevice *vbasedev; VMChangeStateEntry *vm_state; VFIORegion region; uint32_t device_state; int vm_running; + Notifier migration_state; } VFIOMigration; typedef struct VFIOAddressSpace {