From patchwork Wed May 15 14:10:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= X-Patchwork-Id: 1100084 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=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) 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 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 453xL50Wh8z9sD4 for ; Thu, 16 May 2019 00:11:07 +1000 (AEST) Received: from localhost ([127.0.0.1]:37724 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQucb-0007ut-0d for incoming@patchwork.ozlabs.org; Wed, 15 May 2019 10:11:05 -0400 Received: from eggs.gnu.org ([209.51.188.92]:57523) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hQubz-0007sm-Hz for qemu-devel@nongnu.org; Wed, 15 May 2019 10:10:28 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hQubx-0007G3-Op for qemu-devel@nongnu.org; Wed, 15 May 2019 10:10:27 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59894) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hQubt-00078I-US for qemu-devel@nongnu.org; Wed, 15 May 2019 10:10:23 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 02B64307D840; Wed, 15 May 2019 14:10:16 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-112-65.ams2.redhat.com [10.36.112.65]) by smtp.corp.redhat.com (Postfix) with ESMTP id B451E5D706; Wed, 15 May 2019 14:10:14 +0000 (UTC) From: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= To: qemu-devel@nongnu.org Date: Wed, 15 May 2019 15:10:10 +0100 Message-Id: <20190515141011.5315-2-berrange@redhat.com> In-Reply-To: <20190515141011.5315-1-berrange@redhat.com> References: <20190515141011.5315-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Wed, 15 May 2019 14:10:16 +0000 (UTC) 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 1/2] target/i386: define md-clear bit 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: Paolo Bonzini , Eduardo Habkost , Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Paolo Bonzini md-clear is a new CPUID bit which is set when microcode provides the mechanism to invoke a flush of various exploitable CPU buffers by invoking the VERW instruction. Signed-off-by: Paolo Bonzini --- target/i386/cpu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 722c5514d4..4fa67bcfaf 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1077,7 +1077,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { NULL, NULL, "avx512-4vnniw", "avx512-4fmaps", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, NULL, "md-clear", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,