From patchwork Wed Aug 30 16:52:28 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 807766 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xjC0R3Q2Hz9s8P for ; Thu, 31 Aug 2017 03:19:03 +1000 (AEST) Received: from localhost ([::1]:51731 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dn6dp-0007m9-4F for incoming@patchwork.ozlabs.org; Wed, 30 Aug 2017 13:19:01 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57127) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dn6G8-0002UI-Hr for qemu-devel@nongnu.org; Wed, 30 Aug 2017 12:54:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dn6G7-0005SI-ID for qemu-devel@nongnu.org; Wed, 30 Aug 2017 12:54:32 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37720) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dn6G7-0005Rt-9A for qemu-devel@nongnu.org; Wed, 30 Aug 2017 12:54:31 -0400 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 mx1.redhat.com (Postfix) with ESMTPS id 299F45D687; Wed, 30 Aug 2017 16:54:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 299F45D687 Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx10.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=cohuck@redhat.com Received: from localhost (ovpn-116-210.ams2.redhat.com [10.36.116.210]) by smtp.corp.redhat.com (Postfix) with ESMTPS id E02AD70911; Wed, 30 Aug 2017 16:54:25 +0000 (UTC) From: Cornelia Huck To: peter.maydell@linaro.org Date: Wed, 30 Aug 2017 18:52:28 +0200 Message-Id: <20170830165252.13421-21-cohuck@redhat.com> In-Reply-To: <20170830165252.13421-1-cohuck@redhat.com> References: <20170830165252.13421-1-cohuck@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 30 Aug 2017 16:54:30 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 20/44] s390x/pci: fence off instructions for non-pci X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, david@redhat.com, Cornelia Huck , agraf@suse.de, qemu-devel@nongnu.org, borntraeger@de.ibm.com, rth@twiddle.net Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" If a guest running on a machine without zpci issues a pci instruction, throw them an exception. Reviewed-by: Thomas Huth Reviewed-by: Halil Pasic Acked-by: Christian Borntraeger Signed-off-by: Cornelia Huck --- target/s390x/kvm.c | 54 +++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 41 insertions(+), 13 deletions(-) diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index bc62bba5b7..9de165d8b1 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1191,7 +1191,11 @@ static int kvm_clp_service_call(S390CPU *cpu, struct kvm_run *run) { uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - return clp_service_call(cpu, r2); + if (s390_has_feat(S390_FEAT_ZPCI)) { + return clp_service_call(cpu, r2); + } else { + return -1; + } } static int kvm_pcilg_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1199,7 +1203,11 @@ static int kvm_pcilg_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - return pcilg_service_call(cpu, r1, r2); + if (s390_has_feat(S390_FEAT_ZPCI)) { + return pcilg_service_call(cpu, r1, r2); + } else { + return -1; + } } static int kvm_pcistg_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1207,7 +1215,11 @@ static int kvm_pcistg_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - return pcistg_service_call(cpu, r1, r2); + if (s390_has_feat(S390_FEAT_ZPCI)) { + return pcistg_service_call(cpu, r1, r2); + } else { + return -1; + } } static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1216,10 +1228,14 @@ static int kvm_stpcifc_service_call(S390CPU *cpu, struct kvm_run *run) uint64_t fiba; uint8_t ar; - cpu_synchronize_state(CPU(cpu)); - fiba = get_base_disp_rxy(cpu, run, &ar); + if (s390_has_feat(S390_FEAT_ZPCI)) { + cpu_synchronize_state(CPU(cpu)); + fiba = get_base_disp_rxy(cpu, run, &ar); - return stpcifc_service_call(cpu, r1, fiba, ar); + return stpcifc_service_call(cpu, r1, fiba, ar); + } else { + return -1; + } } static int kvm_sic_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1247,7 +1263,11 @@ static int kvm_rpcit_service_call(S390CPU *cpu, struct kvm_run *run) uint8_t r1 = (run->s390_sieic.ipb & 0x00f00000) >> 20; uint8_t r2 = (run->s390_sieic.ipb & 0x000f0000) >> 16; - return rpcit_service_call(cpu, r1, r2); + if (s390_has_feat(S390_FEAT_ZPCI)) { + return rpcit_service_call(cpu, r1, r2); + } else { + return -1; + } } static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1257,10 +1277,14 @@ static int kvm_pcistb_service_call(S390CPU *cpu, struct kvm_run *run) uint64_t gaddr; uint8_t ar; - cpu_synchronize_state(CPU(cpu)); - gaddr = get_base_disp_rsy(cpu, run, &ar); + if (s390_has_feat(S390_FEAT_ZPCI)) { + cpu_synchronize_state(CPU(cpu)); + gaddr = get_base_disp_rsy(cpu, run, &ar); - return pcistb_service_call(cpu, r1, r3, gaddr, ar); + return pcistb_service_call(cpu, r1, r3, gaddr, ar); + } else { + return -1; + } } static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run) @@ -1269,10 +1293,14 @@ static int kvm_mpcifc_service_call(S390CPU *cpu, struct kvm_run *run) uint64_t fiba; uint8_t ar; - cpu_synchronize_state(CPU(cpu)); - fiba = get_base_disp_rxy(cpu, run, &ar); + if (s390_has_feat(S390_FEAT_ZPCI)) { + cpu_synchronize_state(CPU(cpu)); + fiba = get_base_disp_rxy(cpu, run, &ar); - return mpcifc_service_call(cpu, r1, fiba, ar); + return mpcifc_service_call(cpu, r1, fiba, ar); + } else { + return -1; + } } static int handle_b9(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1)