Message ID | 20190916135806.1269-7-david@redhat.com |
---|---|
State | New |
Headers | show
Return-Path: <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> 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=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com 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 ozlabs.org (Postfix) with ESMTPS id 46X7Cr2tSSz9sN1 for <incoming@patchwork.ozlabs.org>; Mon, 16 Sep 2019 23:59:52 +1000 (AEST) Received: from localhost ([::1]:34420 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>) id 1i9rXh-0002vf-H1 for incoming@patchwork.ozlabs.org; Mon, 16 Sep 2019 09:59:49 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45905) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from <david@redhat.com>) id 1i9rWh-0002qt-1e for qemu-devel@nongnu.org; Mon, 16 Sep 2019 09:58:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <david@redhat.com>) id 1i9rWg-0000D6-2C for qemu-devel@nongnu.org; Mon, 16 Sep 2019 09:58:46 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37053) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from <david@redhat.com>) id 1i9rWf-0000Ck-Su; Mon, 16 Sep 2019 09:58:46 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E9BA0C054907; Mon, 16 Sep 2019 13:58:44 +0000 (UTC) Received: from t460s.redhat.com (ovpn-117-103.ams2.redhat.com [10.36.117.103]) by smtp.corp.redhat.com (Postfix) with ESMTP id CBF251018A2E; Mon, 16 Sep 2019 13:58:42 +0000 (UTC) From: David Hildenbrand <david@redhat.com> To: qemu-devel@nongnu.org Date: Mon, 16 Sep 2019 15:57:43 +0200 Message-Id: <20190916135806.1269-7-david@redhat.com> In-Reply-To: <20190916135806.1269-1-david@redhat.com> References: <20190916135806.1269-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Mon, 16 Sep 2019 13:58:45 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v3 06/29] s390x/tcg: MVC: Use is_destructive_overlap() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: Florian Weimer <fweimer@redhat.com>, Thomas Huth <thuth@redhat.com>, David Hildenbrand <david@redhat.com>, =?utf-8?q?Dan_Hor=C3=A1k?= <dan@danny.cz>, Cornelia Huck <cohuck@redhat.com>, Richard Henderson <richard.henderson@linaro.org>, Stefano Brivio <sbrivio@redhat.com>, qemu-s390x@nongnu.org, Cole Robinson <crobinso@redhat.com>, Richard Henderson <rth@twiddle.net> Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org> |
Series |
s390x/tcg: mem_helper: Fault-safe handling
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expand
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diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c index 013e8d6045..c31cf49593 100644 --- a/target/s390x/mem_helper.c +++ b/target/s390x/mem_helper.c @@ -330,7 +330,7 @@ static uint32_t do_helper_mvc(CPUS390XState *env, uint32_t l, uint64_t dest, */ if (dest == src + 1) { fast_memset(env, dest, cpu_ldub_data_ra(env, src, ra), l, ra); - } else if (dest < src || src + l <= dest) { + } else if (!is_destructive_overlap(env, dest, src, l)) { fast_memmove(env, dest, src, l, ra); } else { for (i = 0; i < l; i++) {