From mboxrd@z Thu Jan 1 00:00:00 1970 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=-8.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 A556AC432C0 for ; Thu, 21 Nov 2019 12:15:59 +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 7254C2089D for ; Thu, 21 Nov 2019 12:15:59 +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="d44ULUky" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7254C2089D 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]:39512 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXlNO-0005o4-K6 for qemu-devel@archiver.kernel.org; Thu, 21 Nov 2019 07:15:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43930) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iXlMV-0005K2-2U for qemu-devel@nongnu.org; Thu, 21 Nov 2019 07:15:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iXlMS-0005Ed-IR for qemu-devel@nongnu.org; Thu, 21 Nov 2019 07:15:01 -0500 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:58136 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iXlMS-0005E6-BX for qemu-devel@nongnu.org; Thu, 21 Nov 2019 07:15:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1574338499; 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=VPPQ+s+5vOi2Vmd9q9RFDv+JMTC+2jkvktldLmnSFYQ=; b=d44ULUky6CpW7xGqrLIYzQ4nQeXCDlxE42eezwta/Ew8CdXAiZwtVhLI5cDRVea2XNpmdp +044JaiurS+oypumY71aUq9WNztZBviGUMGr1J7Fhlw2r1098GnmktTIuBJZ5N72VzzFEU z6Jgme52uWYLjK66G6cuM1JvZ5olrYA= 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-368-ZH6BfruuPviql526b-6p9g-1; Thu, 21 Nov 2019 07:14:56 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 26F4E1883523; Thu, 21 Nov 2019 12:14:55 +0000 (UTC) Received: from [10.36.116.214] (ovpn-116-214.ams2.redhat.com [10.36.116.214]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8022E60138; Thu, 21 Nov 2019 12:14:53 +0000 (UTC) Subject: Re: [PATCH 11/15] RFC: s390x: Exit on vcpu reset error To: Janosch Frank , qemu-devel@nongnu.org References: <20191120114334.2287-1-frankja@linux.ibm.com> <20191120114334.2287-12-frankja@linux.ibm.com> From: David Hildenbrand Organization: Red Hat GmbH Message-ID: <09359386-a91b-d98c-08f5-5b375f0bd942@redhat.com> Date: Thu, 21 Nov 2019 13:14:52 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.1 MIME-Version: 1.0 In-Reply-To: <20191120114334.2287-12-frankja@linux.ibm.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: ZH6BfruuPviql526b-6p9g-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=WINDOWS-1252; format=flowed Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.61 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: thuth@redhat.com, pmorel@linux.ibm.com, cohuck@redhat.com, borntraeger@de.ibm.com, qemu-s390x@nongnu.org, mihajlov@linux.ibm.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 20.11.19 12:43, Janosch Frank wrote: > If a vcpu is not properly reset it might be better to just end the VM. >=20 > Signed-off-by: Janosch Frank > --- > target/s390x/kvm.c | 2 ++ > 1 file changed, 2 insertions(+) >=20 > diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c > index 190400df55..0210b54157 100644 > --- a/target/s390x/kvm.c > +++ b/target/s390x/kvm.c > @@ -418,11 +418,13 @@ static void kvm_s390_reset_vcpu(S390CPU *cpu, unsig= ned long type) > if (kvm_vcpu_ioctl(cs, KVM_S390_VCPU_RESET, type)) { > error_report("CPU reset type %ld failed on CPU %i", > type, cs->cpu_index); > + exit(1); > } > return; > } > if (kvm_vcpu_ioctl(cs, KVM_S390_INITIAL_RESET, NULL)) { > error_report("Initial CPU reset failed on CPU %i", cs->cpu_inde= x); > + exit(1); > } > } > =20 >=20 According to the comment in include/qapi/error.h "Please don't error_setg(&error_fatal, ...), use error_report() and=20 exit(), because that's more obvious." This is the right thing to do. ... and it's a fairly pathological thing to happen either way. Reviewed-by: David Hildenbrand --=20 Thanks, David / dhildenb