From nobody Tue May 7 11:50:58 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=gmail.com Return-Path: Received: from lists.gnu.org (208.118.235.17 [208.118.235.17]) by mx.zohomail.com with SMTPS id 1528149152514350.44691404564537; Mon, 4 Jun 2018 14:52:32 -0700 (PDT) Received: from localhost ([::1]:42097 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fPxOo-0007Lt-KY for importer@patchew.org; Mon, 04 Jun 2018 17:52:22 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48133) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fPxNp-00071F-Au for qemu-devel@nongnu.org; Mon, 04 Jun 2018 17:51:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fPxNm-0004fx-8q for qemu-devel@nongnu.org; Mon, 04 Jun 2018 17:51:21 -0400 Received: from mail-io0-x234.google.com ([2607:f8b0:4001:c06::234]:42141) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fPxNm-0004fj-2y for qemu-devel@nongnu.org; Mon, 04 Jun 2018 17:51:18 -0400 Received: by mail-io0-x234.google.com with SMTP id r24-v6so797500ioh.9 for ; Mon, 04 Jun 2018 14:51:17 -0700 (PDT) Received: from localhost.localdomain ([69.14.184.20]) by smtp.gmail.com with ESMTPSA id l24-v6sm4864691iog.59.2018.06.04.14.51.15 (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 04 Jun 2018 14:51:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=nzalL6B5q+wfh5gXrdDk/JczswScedsZmUqGUdMR/Us=; b=T04SUUUecehctnTzN1J9AcS+W/inB60RO6lkGfZmnwT1OYvLcgR1O0Q51FqVo9YVvt HUVbufL4Tz3t/sPOEmXBwVRkEFmJBhXe02zpcevXDtjfOgSsGoxJq6UN8jut1IzAzM8u Oq/GtugdSkcQuIs4JQIIkIRDyI+sKyj0wHZZYOdXa7HXsh3Z2C8Zoo0mao35rkihaoU6 yj7E1jsKB2pdzaZsCksxpSq0ijR9UsyRIHhQC5//+FO9mbVWXnZToJvvAO1nXPTmP8EY 17tfdwxP1XtY3qfsznPzsjFSM4SSopj6tvkTwYJaY5AJ1+/ukAr8HTWo5Oe4EWG8gIH7 +TFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=nzalL6B5q+wfh5gXrdDk/JczswScedsZmUqGUdMR/Us=; b=UZTyVkE3oI/SGl4B4H56Nzn22FaaSFlVK3X6ils9ID2cTA9/+SekC5JjyuqBBKjz3S 9JeX3DkGzm00ss+iy7HrOe2TUXcLBWCGz8cRjQL7TL/WkT9kdoOa9rGsvjlECxB4oQ2i Gpk70Ru9cEIraBut8qjetiJmNYQHkrA/NH/SnfAfpgV+/fxFIbIg24kSdVkB/Mwmw9hV 6Ub/lDFRy8Mq+8BwZ6UySIJgeNDF5cyZd/s90x/ObQrM0roUcVpA/9n0RYY0QB0n2/zq W5l5yfsWV/ilZtJwueGFSW5u764P9206NYyZUG5jUCqdyuX2jO1fKn3IEF69uxgkbUK0 B2WA== X-Gm-Message-State: ALKqPwcWtOBK5jOfoeuXBkT14k94wsOzB+j/h1hjjXqCTyw3NA2Nenvc k61yRfzPWOOWv3sPMvXRn7U= X-Google-Smtp-Source: ADUXVKI3+rgV4LrIXCJTnAcLOSuShE68+ZYLnay0Jtn3GF1HaLx67Gef43zw6j/Ul0IlZEi8j6AIIQ== X-Received: by 2002:a6b:a008:: with SMTP id j8-v6mr22646685ioe.72.1528149077434; Mon, 04 Jun 2018 14:51:17 -0700 (PDT) From: John Arbuckle To: peter.maydell@linaro.org, qemu-devel@nongnu.org Date: Mon, 4 Jun 2018 17:51:02 -0400 Message-Id: <20180604215102.11002-1-programmingkidx@gmail.com> X-Mailer: git-send-email 2.14.3 (Apple Git-98) X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4001:c06::234 Subject: [Qemu-devel] [PATCH v2] tcg-target.inc.c: Use byte form of xgetbv instruction 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: John Arbuckle Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: John Arbuckle --- v2 changes: - Fixed a spacing issue in the asm() function. tcg/i386/tcg-target.inc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/tcg/i386/tcg-target.inc.c b/tcg/i386/tcg-target.inc.c index 5357909fff..09141fa8e0 100644 --- a/tcg/i386/tcg-target.inc.c +++ b/tcg/i386/tcg-target.inc.c @@ -3501,7 +3501,11 @@ static void tcg_target_init(TCGContext *s) sure of not hitting invalid opcode. */ if (c & bit_OSXSAVE) { unsigned xcrl, xcrh; - asm ("xgetbv" : "=3Da" (xcrl), "=3Dd" (xcrh) : "c" (0)); + /* + * The xgetbv instruction is not available to older versions o= f the + * assembler, so we encode the instruction manually. + */ + asm(".byte 0x0f, 0x01, 0xd0" : "=3Da" (xcrl), "=3Dd" (xcrh) : = "c" (0)); if ((xcrl & 6) =3D=3D 6) { have_avx1 =3D (c & bit_AVX) !=3D 0; have_avx2 =3D (b7 & bit_AVX2) !=3D 0; --=20 2.14.3 (Apple Git-98)