From patchwork Fri Jun 18 15:35:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Williamson X-Patchwork-Id: 1494335 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; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=aDMmxllW; 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 4G632L6TJKz9sPf for ; Sat, 19 Jun 2021 01:37:14 +1000 (AEST) Received: from localhost ([::1]:50372 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1luGYR-0000wL-SU for incoming@patchwork.ozlabs.org; Fri, 18 Jun 2021 11:37:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:41190) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1luGWb-0006Hh-JD for qemu-devel@nongnu.org; Fri, 18 Jun 2021 11:35:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:32100) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1luGWZ-0004UC-AU for qemu-devel@nongnu.org; Fri, 18 Jun 2021 11:35:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1624030514; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=b497Plty6INS5DVpmKNuonj9C7Ksw1Na97HVdIQJWVo=; b=aDMmxllWYQflErGjs8fgbm6+kdGQ6Y6KwigyNeGmJTyBoYpmgvgn4LsGjzUXle0kFfizNJ I8FWfJcmytgJzVPvsinPUwfBGgAIDIbhyOHHadU+mHs3oYv0UHAvb/O+30MWZArtbCu6LG +fwErPYRY4Fl3wcBzFSf5hE23tqMXHA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-527-nJnlRGl1ONSpPZVvCWCngA-1; Fri, 18 Jun 2021 11:35:13 -0400 X-MC-Unique: nJnlRGl1ONSpPZVvCWCngA-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1057A9F92A; Fri, 18 Jun 2021 15:35:12 +0000 (UTC) Received: from [172.30.41.16] (ovpn-112-106.phx2.redhat.com [10.3.112.106]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5EBA41001281; Fri, 18 Jun 2021 15:35:05 +0000 (UTC) Subject: [PULL 3/3] vfio/migration: Correct device state from vmstate change for savevm case From: Alex Williamson To: qemu-devel@nongnu.org Date: Fri, 18 Jun 2021 09:35:05 -0600 Message-ID: <162403050520.1793226.14555349399059942330.stgit@omen> In-Reply-To: <162403041204.1793226.16018359908572247606.stgit@omen> References: <162403041204.1793226.16018359908572247606.stgit@omen> User-Agent: StGit/1.0-8-g6af9-dirty MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=alex.williamson@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=216.205.24.124; envelope-from=alex.williamson@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.194, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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: Kirti Wankhede , alex.williamson@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Kirti Wankhede Set _SAVING flag for device state from vmstate change handler when it gets called from savevm. Currently State transition savevm/suspend is seen as: _RUNNING -> _STOP -> Stop-and-copy -> _STOP State transition savevm/suspend should be: _RUNNING -> Stop-and-copy -> _STOP State transition from _RUNNING to _STOP occurs from vfio_vmstate_change() where when vmstate changes from running to !running, _RUNNING flag is reset but at the same time when vfio_vmstate_change() is called for RUN_STATE_SAVE_VM, _SAVING bit should be set. Reported by: Yishai Hadas Signed-off-by: Kirti Wankhede Message-Id: <1623177441-27496-1-git-send-email-kwankhede@nvidia.com> Signed-off-by: Alex Williamson --- hw/vfio/migration.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index ef397ebe6c09..82f654afb64a 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -724,7 +724,16 @@ static void vfio_vmstate_change(void *opaque, bool running, RunState state) * _RUNNING bit */ mask = ~VFIO_DEVICE_STATE_RUNNING; - value = 0; + + /* + * When VM state transition to stop for savevm command, device should + * start saving data. + */ + if (state == RUN_STATE_SAVE_VM) { + value = VFIO_DEVICE_STATE_SAVING; + } else { + value = 0; + } } ret = vfio_migration_set_state(vbasedev, mask, value);