From patchwork Mon Oct 26 11:13:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 270433 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B85EDC4363A for ; Mon, 26 Oct 2020 11:21:50 +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 15D992464E for ; Mon, 26 Oct 2020 11:21:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="h2rsWCUA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15D992464E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54044 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kX0ZQ-0004z2-P9 for qemu-devel@archiver.kernel.org; Mon, 26 Oct 2020 07:21:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57152) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kX0Rz-0005Om-V4 for qemu-devel@nongnu.org; Mon, 26 Oct 2020 07:14:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:27983) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kX0Rw-0006Q5-Tp for qemu-devel@nongnu.org; Mon, 26 Oct 2020 07:14:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603710842; 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=dgCzWiQZE84aGBa557DNAgNMPbPB8G3XLJlEEmi1Ygc=; b=h2rsWCUA+F1DLUXUYEb/aXLJDwX/EvZhxQx6nowrPajzt/unWTLo5g0v6igcGQ6PI3lnAc u+1ndnJp6GQfrNFKdycgxrGNU7wW7i8tijIimp2XXHVSOVwFGkkcmvqiLh18T6rMjDtyIE xZy11nzQ04Uxaswjy8pfFqny6jxUQ+8= 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-104-DIoqUQk5Nm2EDXaNM3_ZHQ-1; Mon, 26 Oct 2020 07:13:58 -0400 X-MC-Unique: DIoqUQk5Nm2EDXaNM3_ZHQ-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 02B4C84634C; Mon, 26 Oct 2020 11:13:57 +0000 (UTC) Received: from gondolin.redhat.com (ovpn-113-108.ams2.redhat.com [10.36.113.108]) by smtp.corp.redhat.com (Postfix) with ESMTP id DBCF260BF3; Mon, 26 Oct 2020 11:13:54 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Subject: [PULL 1/3] s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset Date: Mon, 26 Oct 2020 12:13:45 +0100 Message-Id: <20201026111347.252015-2-cohuck@redhat.com> In-Reply-To: <20201026111347.252015-1-cohuck@redhat.com> References: <20201026111347.252015-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/25 21:03:19 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H5=-1, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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: Eric Farman , Matthew Rosato , Cornelia Huck , qemu-devel@nongnu.org, qemu-stable@nongnu.org, Halil Pasic , Christian Borntraeger , qemu-s390x@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Matthew Rosato Currently, a subsystem reset event leaves PCI devices enabled, causing issues post-reset in the guest (an example would be after a kexec). These devices need to be reset during a subsystem reset, allowing them to be properly re-enabled afterwards. Add the S390 PCI host bridge to the list of qdevs to be reset during subsystem reset. Signed-off-by: Matthew Rosato Reviewed-by: Eric Farman Acked-by: Halil Pasic Acked-by: Christian Borntraeger Cc: qemu-stable@nongnu.org Message-Id: <1602767767-32713-1-git-send-email-mjrosato@linux.ibm.com> Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index e52182f94633..2e900335eaba 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -101,6 +101,7 @@ static const char *const reset_dev_types[] = { "s390-sclp-event-facility", "s390-flic", "diag288", + TYPE_S390_PCI_HOST_BRIDGE, }; static void subsystem_reset(void)