From patchwork Mon Jun 25 03:39:20 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Hoo X-Patchwork-Id: 10485057 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 6C81D601D5 for ; Mon, 25 Jun 2018 05:18:42 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6286128459 for ; Mon, 25 Jun 2018 05:18:42 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 576762846D; Mon, 25 Jun 2018 05:18:42 +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 F3A0728459 for ; Mon, 25 Jun 2018 05:18:41 +0000 (UTC) Received: from localhost ([::1]:44292 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fXJth-0000o3-87 for patchwork-qemu-devel@patchwork.kernel.org; Mon, 25 Jun 2018 01:18:41 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36633) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fXIMJ-0001mK-J7 for qemu-devel@nongnu.org; Sun, 24 Jun 2018 23:40:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fXIMF-0007sr-NR for qemu-devel@nongnu.org; Sun, 24 Jun 2018 23:40:07 -0400 Received: from mga17.intel.com ([192.55.52.151]:25155) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fXIMF-0007sW-EU for qemu-devel@nongnu.org; Sun, 24 Jun 2018 23:40:03 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Jun 2018 20:39:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.51,268,1526367600"; d="scan'208";a="235277840" Received: from sqa-gate.sh.intel.com (HELO robert-ivt.tsp.org) ([10.239.48.212]) by orsmga005.jf.intel.com with ESMTP; 24 Jun 2018 20:39:51 -0700 From: Robert Hoo To: qemu-devel@nongnu.org, pbonzini@redhat.com, rth@twiddle.net, ehabkost@redhat.com Date: Mon, 25 Jun 2018 11:39:20 +0800 Message-Id: <1529897961-134132-5-git-send-email-robert.hu@linux.intel.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1529897961-134132-1-git-send-email-robert.hu@linux.intel.com> References: <1529897961-134132-1-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: 192.55.52.151 X-Mailman-Approved-At: Mon, 25 Jun 2018 01:13:44 -0400 Subject: [Qemu-devel] [PATCH 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, Robert Hoo 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]. Reference: https://software.intel.com/sites/default/files/managed/c5/15/architecture-instruction-set-extensions-programming-reference.pdf Signed-off-by: Robert Hoo --- target/i386/cpu.c | 2 +- target/i386/cpu.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index 9e038c3..821b7bd 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -923,7 +923,7 @@ 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 61d23e5..c67216d 100644 --- a/target/i386/cpu.h +++ b/target/i386/cpu.h @@ -692,6 +692,7 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS]; #define CPUID_7_0_EDX_ARCH_CAPABILITIES (1U << 29) /*Arch Capabilities of RDCL_NO and IBRS_ALL*/ #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)