From patchwork Wed Sep 13 13:24:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 813441 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 3xsjK033tLz9sNV for ; Wed, 13 Sep 2017 23:32:52 +1000 (AEST) Received: from localhost ([::1]:42551 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ds7mc-0004Js-Fu for incoming@patchwork.ozlabs.org; Wed, 13 Sep 2017 09:32:50 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39144) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ds7fM-0005TL-6P for qemu-devel@nongnu.org; Wed, 13 Sep 2017 09:25:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ds7fL-0002zR-9C for qemu-devel@nongnu.org; Wed, 13 Sep 2017 09:25:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:47702) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ds7fL-0002yk-2c for qemu-devel@nongnu.org; Wed, 13 Sep 2017 09:25:19 -0400 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 mx1.redhat.com (Postfix) with ESMTPS id 1F6D97EA8B; Wed, 13 Sep 2017 13:25:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 1F6D97EA8B Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=david@redhat.com Received: from t460s.redhat.com (ovpn-116-21.ams2.redhat.com [10.36.116.21]) by smtp.corp.redhat.com (Postfix) with ESMTP id 283D760461; Wed, 13 Sep 2017 13:25:14 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Date: Wed, 13 Sep 2017 15:24:05 +0200 Message-Id: <20170913132417.24384-11-david@redhat.com> In-Reply-To: <20170913132417.24384-1-david@redhat.com> References: <20170913132417.24384-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Wed, 13 Sep 2017 13:25:18 +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] [PATCH v5 10/22] target/s390x: use program_interrupt() in per_check_exception() 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: Matthew Rosato , thuth@redhat.com, Eduardo Habkost , david@redhat.com, cohuck@redhat.com, Richard Henderson , Alexander Graf , Markus Armbruster , borntraeger@de.ibm.com, Igor Mammedov , Paolo Bonzini Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Clean it up by reusing program_interrupt(). Add a concern regarding ilen. Signed-off-by: David Hildenbrand --- target/s390x/misc_helper.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 8b07535b02..f3624d75eb 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -447,14 +447,17 @@ void HELPER(chsc)(CPUS390XState *env, uint64_t inst) #ifndef CONFIG_USER_ONLY void HELPER(per_check_exception)(CPUS390XState *env) { - CPUState *cs = CPU(s390_env_get_cpu(env)); + uint32_t ilen; if (env->per_perc_atmid) { - env->int_pgm_code = PGM_PER; - env->int_pgm_ilen = get_ilen(cpu_ldub_code(env, env->per_address)); - - cs->exception_index = EXCP_PGM; - cpu_loop_exit(cs); + /* + * FIXME: ILEN_AUTO is most probably the right thing to use. ilen + * always has to match the instruction referenced in the PSW. E.g. + * if a PER interrupt is triggered via EXECUTE, we have to use ilen + * of EXECUTE, while per_address contains the target of EXECUTE. + */ + ilen = get_ilen(cpu_ldub_code(env, env->per_address)); + program_interrupt(env, PGM_PER, ilen); } }