Message ID | 20190607141727.29018-11-cohuck@redhat.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EE9CD1515 for <patchwork-qemu-devel@patchwork.kernel.org>; Fri, 7 Jun 2019 14:51:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DF1A828A37 for <patchwork-qemu-devel@patchwork.kernel.org>; Fri, 7 Jun 2019 14:51:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D0CBA28A47; Fri, 7 Jun 2019 14:51:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 5B84528A3D for <patchwork-qemu-devel@patchwork.kernel.org>; Fri, 7 Jun 2019 14:51:27 +0000 (UTC) Received: from localhost ([::1]:48438 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>) id 1hZGDG-0003L8-5L for patchwork-qemu-devel@patchwork.kernel.org; Fri, 07 Jun 2019 10:51:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52927) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from <cohuck@redhat.com>) id 1hZFh8-0003Wi-SR for qemu-devel@nongnu.org; Fri, 07 Jun 2019 10:18:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <cohuck@redhat.com>) id 1hZFh6-0003Dl-Ju for qemu-devel@nongnu.org; Fri, 07 Jun 2019 10:18:14 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53440) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from <cohuck@redhat.com>) id 1hZFh6-0003Ah-Cm; Fri, 07 Jun 2019 10:18:12 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id A3500309B146; Fri, 7 Jun 2019 14:18:10 +0000 (UTC) Received: from localhost (dhcp-192-191.str.redhat.com [10.33.192.191]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 4E1036840F; Fri, 7 Jun 2019 14:18:10 +0000 (UTC) From: Cornelia Huck <cohuck@redhat.com> To: Peter Maydell <peter.maydell@linaro.org> Date: Fri, 7 Jun 2019 16:17:03 +0200 Message-Id: <20190607141727.29018-11-cohuck@redhat.com> In-Reply-To: <20190607141727.29018-1-cohuck@redhat.com> References: <20190607141727.29018-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.49]); Fri, 07 Jun 2019 14:18:10 +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] [PULL v2 10/34] s390x/tcg: Store only the necessary amount of doublewords for STFLE 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: Stefan Liebler <stli@linux.ibm.com>, David Hildenbrand <david@redhat.com>, Andreas Krebbel <Andreas.Krebbel@de.ibm.com>, Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org, qemu-s390x@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> X-Virus-Scanned: ClamAV using ClamSMTP |
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[PULL,v2,01/34] MAINTAINERS: cover tests/migration/s390x/
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diff --git a/target/s390x/misc_helper.c b/target/s390x/misc_helper.c index 34476134a407..10aa617cf9c5 100644 --- a/target/s390x/misc_helper.c +++ b/target/s390x/misc_helper.c @@ -678,7 +678,13 @@ uint32_t HELPER(stfle)(CPUS390XState *env, uint64_t addr) prepare_stfl(); max_bytes = ROUND_UP(used_stfl_bytes, 8); - for (i = 0; i < count_bytes; ++i) { + + /* + * The PoP says that doublewords beyond the highest-numbered facility + * bit may or may not be stored. However, existing hardware appears to + * not store the words, and existing software depend on that. + */ + for (i = 0; i < MIN(count_bytes, max_bytes); ++i) { cpu_stb_data_ra(env, addr + i, stfl_bytes[i], ra); }