From patchwork Thu Oct 29 07:31:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiao Guangrong X-Patchwork-Id: 537694 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id E416C1402B0 for ; Thu, 29 Oct 2015 18:38:48 +1100 (AEDT) Received: from localhost ([::1]:42397 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZrhnL-0001QB-0T for incoming@patchwork.ozlabs.org; Thu, 29 Oct 2015 03:38:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36011) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zrhn5-00019F-CC for qemu-devel@nongnu.org; Thu, 29 Oct 2015 03:38:32 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zrhn0-0004F7-Cb for qemu-devel@nongnu.org; Thu, 29 Oct 2015 03:38:31 -0400 Received: from mga09.intel.com ([134.134.136.24]:28418) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zrhn0-0004Ez-6y for qemu-devel@nongnu.org; Thu, 29 Oct 2015 03:38:26 -0400 Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP; 29 Oct 2015 00:38:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,213,1444719600"; d="scan'208";a="838209270" Received: from xiao.sh.intel.com ([10.239.159.86]) by fmsmga002.fm.intel.com with ESMTP; 29 Oct 2015 00:38:24 -0700 From: Xiao Guangrong To: pbonzini@redhat.com Date: Thu, 29 Oct 2015 15:31:39 +0800 Message-Id: <1446103899-8644-1-git-send-email-guangrong.xiao@linux.intel.com> X-Mailer: git-send-email 2.4.3 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.24 Cc: Xiao Guangrong , ehabkost@redhat.com, kvm@vger.kernel.org, qemu-devel@nongnu.org Subject: [Qemu-devel] [PATCH] target-i386: enable cflushopt/clwb/pcommit instructions X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org These instructions are used by NVDIMM drivers and the specification locates at: https://software.intel.com/sites/default/files/managed/0d/53/319433-022.pdf There instructions are available on Skylake Server Signed-off-by: Xiao Guangrong Reviewed-by: Richard Henderson --- target-i386/cpu.c | 8 +++++--- target-i386/cpu.h | 3 +++ 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 05d7f26..ebecdb4 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -259,8 +259,8 @@ static const char *svm_feature_name[] = { static const char *cpuid_7_0_ebx_feature_name[] = { "fsgsbase", "tsc_adjust", NULL, "bmi1", "hle", "avx2", NULL, "smep", "bmi2", "erms", "invpcid", "rtm", NULL, NULL, "mpx", NULL, - "avx512f", NULL, "rdseed", "adx", "smap", NULL, NULL, NULL, - NULL, NULL, "avx512pf", "avx512er", "avx512cd", NULL, NULL, NULL, + "avx512f", NULL, "rdseed", "adx", "smap", NULL, "pcommit", "clflushopt", + "clwb", NULL, "avx512pf", "avx512er", "avx512cd", NULL, NULL, NULL, }; static const char *cpuid_apm_edx_feature_name[] = { @@ -345,7 +345,9 @@ static const char *cpuid_6_feature_name[] = { #define TCG_SVM_FEATURES 0 #define TCG_KVM_FEATURES 0 #define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \ - CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX) + CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX | \ + CPUID_7_0_EBX_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \ + CPUID_7_0_EBX_CLWB) /* missing: CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2, CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, diff --git a/target-i386/cpu.h b/target-i386/cpu.h index 54d9d50..71ecb5c 100644 --- a/target-i386/cpu.h +++ b/target-i386/cpu.h @@ -573,6 +573,9 @@ typedef uint32_t FeatureWordArray[FEATURE_WORDS]; #define CPUID_7_0_EBX_RDSEED (1U << 18) #define CPUID_7_0_EBX_ADX (1U << 19) #define CPUID_7_0_EBX_SMAP (1U << 20) +#define CPUID_7_0_EBX_PCOMMIT (1U << 22) /* Persistent Commit */ +#define CPUID_7_0_EBX_CLFLUSHOPT (1U << 23) /* Flush a Cache Line Optimized */ +#define CPUID_7_0_EBX_CLWB (1U << 24) /* Cache Line Write Back */ #define CPUID_7_0_EBX_AVX512PF (1U << 26) /* AVX-512 Prefetch */ #define CPUID_7_0_EBX_AVX512ER (1U << 27) /* AVX-512 Exponential and Reciprocal */ #define CPUID_7_0_EBX_AVX512CD (1U << 28) /* AVX-512 Conflict Detection */