From patchwork Thu Jul 5 09:09:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Hoo X-Patchwork-Id: 10508405 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EC69160532 for ; Thu, 5 Jul 2018 09:11:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DB3CD26490 for ; Thu, 5 Jul 2018 09:11:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CF56928445; Thu, 5 Jul 2018 09:11:45 +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=-7.9 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 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 mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 8278E28418 for ; Thu, 5 Jul 2018 09:11:45 +0000 (UTC) Received: from localhost ([::1]:51199 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fb0Ii-00028T-L0 for patchwork-qemu-devel@patchwork.kernel.org; Thu, 05 Jul 2018 05:11:44 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42449) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fb0HA-0000rh-Hk for qemu-devel@nongnu.org; Thu, 05 Jul 2018 05:10:09 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fb0H9-0007Bf-Kj for qemu-devel@nongnu.org; Thu, 05 Jul 2018 05:10:08 -0400 Received: from mga02.intel.com ([134.134.136.20]:23698) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fb0H9-0006vV-BE for qemu-devel@nongnu.org; Thu, 05 Jul 2018 05:10:07 -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 orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Jul 2018 02:10:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,311,1526367600"; d="scan'208";a="69807680" Received: from sqa-gate.sh.intel.com (HELO robert-ivt.tsp.org) ([10.239.48.212]) by fmsmga001.fm.intel.com with ESMTP; 05 Jul 2018 02:10:05 -0700 From: Robert Hoo To: qemu-devel@nongnu.org, pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com Date: Thu, 5 Jul 2018 17:09:57 +0800 Message-Id: <1530781798-183214-5-git-send-email-robert.hu@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1530781798-183214-1-git-send-email-robert.hu@linux.intel.com> References: <1530781798-183214-1-git-send-email-robert.hu@linux.intel.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.20 Subject: [Qemu-devel] [PATCH v4 4/5] i386: Add CPUID bit for WBNOINVD 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: robert.hu@intel.com, wei.w.wang@intel.com, Robert Hoo , jingqi.liu@intel.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP WBNOINVD: Write back and do not invalidate cache, enumerated by CPUID.(EAX=80000008H, ECX=0):EBX[bit 9]. Signed-off-by: Robert Hoo --- target/i386/cpu.c | 2 +- target/i386/cpu.h | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index b83d0a9..8de15cb 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -1028,7 +1028,7 @@ static FeatureWordInfo feature_word_info[FEATURE_WORDS] = { .feat_names = { NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, + NULL, "wbnoinvd", NULL, NULL, "ibpb", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, diff --git a/target/i386/cpu.h b/target/i386/cpu.h index 12a7e6c..265f428 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -694,6 +694,8 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS]; #define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29) /*Arch Capabilities*/ #define CPUID_7_0_EDX_SPEC_CTRL_SSBD (1U << 31) /* Speculative Store Bypass Disable */ +#define CPUID_8000_0008_EBX_WBNOINVD (1U << 9) /* Write back and + do not invalidate cache */ #define CPUID_8000_0008_EBX_IBPB (1U << 12) /* Indirect Branch Prediction Barrier */ #define CPUID_XSAVE_XSAVEOPT (1U << 0)