From patchwork Wed Sep 14 16:20:12 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 669988 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3sZ6jj4hbdz9sDG for ; Thu, 15 Sep 2016 02:40:41 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=KsDCzoiz; dkim-atps=neutral Received: from localhost ([::1]:57355 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkDEl-0005HS-89 for incoming@patchwork.ozlabs.org; Wed, 14 Sep 2016 12:40:39 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36251) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkCwo-00078O-NE for qemu-devel@nongnu.org; Wed, 14 Sep 2016 12:22:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bkCwn-0008V8-Nj for qemu-devel@nongnu.org; Wed, 14 Sep 2016 12:22:06 -0400 Received: from mail-yw0-f194.google.com ([209.85.161.194]:34520) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bkCwn-0008Uy-KT for qemu-devel@nongnu.org; Wed, 14 Sep 2016 12:22:05 -0400 Received: by mail-yw0-f194.google.com with SMTP id t67so1218181ywg.1 for ; Wed, 14 Sep 2016 09:22:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=ppZ868ztkhJXEyPp42KaJJDm8o6aFem1R2nICPSBt4w=; b=KsDCzoiztWMSEhPCWc+wRKH2gP0Pbd+WbObrLZYZifSbyhS2DWLodVsbNOnNifNVI3 /34b+gKxif0pNqvodDQdvrHjg0Bi77EBXtZHY8Rg1jGfxFM2/ibzs+qNMNjngesxDQEp UiBSH8SNGt4tSrUhyy3p7pUAcFqvNOsWsH4XLAMRSO1LEkjPnxOG0yu6jh4SSb6O0hPz 5EwlGM7PE8ak3fVOML4VBJ5q01fNXdStb5LkwtsyHlX3q19K9E70tUHNnbrolPt1mT+5 2ij8bKEyBARaMUkPBcfYYVnfTCh6621PyFmeupfQ/VUdvgAuYxFBZj24xMYQSPhR27q1 oJ/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=ppZ868ztkhJXEyPp42KaJJDm8o6aFem1R2nICPSBt4w=; b=Le/e+tyWPkHwuYYTMwXUjqNzSqqu1o3CQ6m4RWJbC8E2eIt/D90La455UKpkZYTp5M i+DriMeAFknEQcw2+JcipZFiIYb5SYRTGWZJdJQeeoJSX8SYsZgKj6usremLjNEyXIxZ NZ0VCpjtc36e2QGZmcNLU985E1511xv5kQAMzN4+lVFGvk55ulNGpwB94xXGRHIF4ESf 9lqh2a6cSWC/3nHE4e31Ps2rPckg/5IfJbxmoADEvOc/4iKKilp2IGjB25sSzXiTcUH4 TafrV3Ki7bp0Qy1z6LGHn+bB3O57/1hYx3418g148dMUvQETFZkjK1XigwxOmZdBmaJd xWJg== X-Gm-Message-State: AE9vXwMLOCz/0jVShyugBv/2wR5jtYVxZmIzlK+CmrzEl8DemGq+YUi4ksDO04NvUxjw/w== X-Received: by 10.129.75.4 with SMTP id y4mr3569245ywa.312.1473870065348; Wed, 14 Sep 2016 09:21:05 -0700 (PDT) Received: from bigtime.com (174-24-157-40.tukw.qwest.net. [174.24.157.40]) by smtp.gmail.com with ESMTPSA id i71sm2809341ywg.54.2016.09.14.09.21.04 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 14 Sep 2016 09:21:04 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 14 Sep 2016 09:20:12 -0700 Message-Id: <1473870013-9545-18-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1473870013-9545-1-git-send-email-rth@twiddle.net> References: <1473870013-9545-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.161.194 Subject: [Qemu-devel] [PULL v5 17/18] target-i386: Generate fences for x86 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: peter.maydell@linaro.org, Pranith Kumar Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pranith Kumar Signed-off-by: Pranith Kumar Message-Id: <20160714202026.9727-15-bobby.prani@gmail.com> Signed-off-by: Richard Henderson --- target-i386/translate.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/target-i386/translate.c b/target-i386/translate.c index fa2ac48..9447557 100644 --- a/target-i386/translate.c +++ b/target-i386/translate.c @@ -8012,13 +8012,21 @@ static target_ulong disas_insn(CPUX86State *env, DisasContext *s, || (prefixes & PREFIX_LOCK)) { goto illegal_op; } + tcg_gen_mb(TCG_MO_ST_ST | TCG_BAR_SC); break; case 0xe8 ... 0xef: /* lfence */ + if (!(s->cpuid_features & CPUID_SSE) + || (prefixes & PREFIX_LOCK)) { + goto illegal_op; + } + tcg_gen_mb(TCG_MO_LD_LD | TCG_BAR_SC); + break; case 0xf0 ... 0xf7: /* mfence */ if (!(s->cpuid_features & CPUID_SSE2) || (prefixes & PREFIX_LOCK)) { goto illegal_op; } + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); break; default: