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=-8.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 470C6C432C3 for ; Fri, 15 Nov 2019 11:25:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1951420728 for ; Fri, 15 Nov 2019 11:25:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="gsHiIMG3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727325AbfKOLZZ (ORCPT ); Fri, 15 Nov 2019 06:25:25 -0500 Received: from us-smtp-2.mimecast.com ([205.139.110.61]:24912 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726521AbfKOLZZ (ORCPT ); Fri, 15 Nov 2019 06:25:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573817124; 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=l/JpN/oMJR/zr1X7jwXbaW9VEUcQwKCQO+0WLQlJgXE=; b=gsHiIMG3XTuabNZtrPvN2cL1jsbR+3DjgLT7HNpy3F+11+tZzkz6sw2Xy8NBFgA5VteQRo MCBZWQVYI377qDZFFqdpI89OPxSoD6Y8dP7B6baQTGDKfi46RsQTEzMJscT83bCoqc8Avc qSd2faMoBOGrHTfuuYBnxmnDSAYC/9Y= 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-182-CigA_vKNPwa37lgDhhUM_Q-1; Fri, 15 Nov 2019 06:25:22 -0500 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 57BAD805EB7; Fri, 15 Nov 2019 11:25:21 +0000 (UTC) Received: from localhost.localdomain (ovpn-117-14.ams2.redhat.com [10.36.117.14]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A5FC169193; Fri, 15 Nov 2019 11:25:15 +0000 (UTC) Subject: Re: [RFC 36/37] KVM: s390: protvirt: Support cmd 5 operation state To: Janosch Frank , kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, david@redhat.com, borntraeger@de.ibm.com, imbrenda@linux.ibm.com, mihajlov@linux.ibm.com, mimu@linux.ibm.com, cohuck@redhat.com, gor@linux.ibm.com References: <20191024114059.102802-1-frankja@linux.ibm.com> <20191024114059.102802-37-frankja@linux.ibm.com> From: Thomas Huth Message-ID: Date: Fri, 15 Nov 2019 12:25:14 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.0 MIME-Version: 1.0 In-Reply-To: <20191024114059.102802-37-frankja@linux.ibm.com> Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-MC-Unique: CigA_vKNPwa37lgDhhUM_Q-1 X-Mimecast-Spam-Score: 0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On 24/10/2019 13.40, Janosch Frank wrote: > Code 5 for the set cpu state UV call tells the UV to load a PSW from > the SE header (first IPL) or from guest location 0x0 (diag 308 subcode > 0/1). Also it sets the cpu into operating state afterwards, so we can > start it. >=20 > Signed-off-by: Janosch Frank > --- > arch/s390/include/asm/uv.h | 1 + > arch/s390/kvm/kvm-s390.c | 4 ++++ > include/uapi/linux/kvm.h | 1 + > 3 files changed, 6 insertions(+) >=20 > diff --git a/arch/s390/include/asm/uv.h b/arch/s390/include/asm/uv.h > index 33b52ba306af..8d10ae731458 100644 > --- a/arch/s390/include/asm/uv.h > +++ b/arch/s390/include/asm/uv.h > @@ -163,6 +163,7 @@ struct uv_cb_unp { > #define PV_CPU_STATE_OPR=091 > #define PV_CPU_STATE_STP=092 > #define PV_CPU_STATE_CHKSTP=093 > +#define PV_CPU_STATE_OPR_LOAD=095 > =20 > struct uv_cb_cpu_set_state { > =09struct uv_cb_header header; > diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c > index cc5feb67f145..5cc9108c94e4 100644 > --- a/arch/s390/kvm/kvm-s390.c > +++ b/arch/s390/kvm/kvm-s390.c > @@ -4652,6 +4652,10 @@ static int kvm_s390_handle_pv_vcpu(struct kvm_vcpu= *vcpu, > =09=09r =3D kvm_s390_pv_destroy_cpu(vcpu); > =09=09break; > =09} > +=09case KVM_PV_VCPU_SET_IPL_PSW: { > +=09=09r =3D kvm_s390_pv_set_cpu_state(vcpu, PV_CPU_STATE_OPR_LOAD); > +=09=09break; > +=09} Nit: No need for the curly braces here. Thomas