From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:63124 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2439210AbfJXLmz (ORCPT ); Thu, 24 Oct 2019 07:42:55 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x9OBcfXS137191 for ; Thu, 24 Oct 2019 07:42:53 -0400 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 2vuaha9v8h-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 24 Oct 2019 07:42:53 -0400 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 24 Oct 2019 12:42:51 +0100 From: Janosch Frank Subject: [RFC 36/37] KVM: s390: protvirt: Support cmd 5 operation state Date: Thu, 24 Oct 2019 07:40:58 -0400 In-Reply-To: <20191024114059.102802-1-frankja@linux.ibm.com> References: <20191024114059.102802-1-frankja@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Message-Id: <20191024114059.102802-37-frankja@linux.ibm.com> Sender: linux-s390-owner@vger.kernel.org List-ID: To: kvm@vger.kernel.org Cc: linux-s390@vger.kernel.org, thuth@redhat.com, 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, frankja@linux.ibm.com 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. 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(+) 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 1 #define PV_CPU_STATE_STP 2 #define PV_CPU_STATE_CHKSTP 3 +#define PV_CPU_STATE_OPR_LOAD 5 struct uv_cb_cpu_set_state { struct 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, r = kvm_s390_pv_destroy_cpu(vcpu); break; } + case KVM_PV_VCPU_SET_IPL_PSW: { + r = kvm_s390_pv_set_cpu_state(vcpu, PV_CPU_STATE_OPR_LOAD); + break; + } default: r = -ENOTTY; } diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 2846ed5e5dd9..973007d27d55 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -1483,6 +1483,7 @@ enum pv_cmd_id { KVM_PV_VM_UNSHARE, KVM_PV_VCPU_CREATE, KVM_PV_VCPU_DESTROY, + KVM_PV_VCPU_SET_IPL_PSW, }; struct kvm_pv_cmd { -- 2.20.1