From patchwork Sat Oct 12 02:47:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 1175645 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=intel.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 46qqQT3CvRz9sP4 for ; Sat, 12 Oct 2019 14:03:27 +1100 (AEDT) Received: from localhost ([::1]:58516 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iJ7gh-0004vZ-Tm for incoming@patchwork.ozlabs.org; Fri, 11 Oct 2019 23:03:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56365) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iJ7gJ-0004vR-BT for qemu-devel@nongnu.org; Fri, 11 Oct 2019 23:03:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iJ7gG-0008Fi-NB for qemu-devel@nongnu.org; Fri, 11 Oct 2019 23:02:58 -0400 Received: from mga04.intel.com ([192.55.52.120]:4888) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iJ7gG-0008FV-Dt for qemu-devel@nongnu.org; Fri, 11 Oct 2019 23:02:56 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 11 Oct 2019 20:02:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.67,286,1566889200"; d="scan'208";a="207555885" Received: from lxy-clx-4s.sh.intel.com ([10.239.43.57]) by fmsmga001.fm.intel.com with ESMTP; 11 Oct 2019 20:02:53 -0700 From: Xiaoyao Li To: Paolo Bonzini , Richard Henderson , Eduardo Habkost , "Michael S. Tsirkin" , Marcel Apfelbaum Subject: [PATCH v3] target/i386: Add Snowridge-v2 (no MPX) CPU model Date: Sat, 12 Oct 2019 10:47:48 +0800 Message-Id: <20191012024748.127135-1-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 192.55.52.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Xiaoyao Li , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Add new version of Snowridge CPU model that removes MPX feature. MPX support is being phased out by Intel. GCC has dropped it, Linux kernel and KVM are also going to do that in the future. Signed-off-by: Xiaoyao Li Reviewed-by: Peter Maydell --- Changes in v3: - Remove the .alias field (ehabkost) Changes in v2: - Use CPU model versioning mechanism instead of machine-type compat --- target/i386/cpu.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 44f1bbdcac76..6685f803da02 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -2793,6 +2793,18 @@ static X86CPUDefinition builtin_x86_defs[] = { CPUID_6_EAX_ARAT, .xlevel = 0x80000008, .model_id = "Intel Atom Processor (SnowRidge)", + .versions = (X86CPUVersionDefinition[]) { + { .version = 1 }, + { + .version = 2, + .props = (PropValue[]) { + { "mpx", "off" }, + { "model-id", "Intel Atom Processor (Snowridge, no MPX)" }, + { /* end of list */ }, + }, + }, + { /* end of list */ }, + }, }, { .name = "KnightsMill",