From patchwork Thu Jul 7 19:59:13 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eduardo Habkost X-Patchwork-Id: 646133 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 3rlpRQ1fXFz9syB for ; Fri, 8 Jul 2016 06:01:38 +1000 (AEST) Received: from localhost ([::1]:42045 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLFUO-00084k-07 for incoming@patchwork.ozlabs.org; Thu, 07 Jul 2016 16:01:36 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51143) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLFSn-0004Kq-B3 for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bLFSk-0004Lu-GG for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:56 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32991) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bLFSk-0004Lk-A6 for qemu-devel@nongnu.org; Thu, 07 Jul 2016 15:59:54 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id CBDBA63147; Thu, 7 Jul 2016 19:59:53 +0000 (UTC) Received: from localhost (vpn1-4-171.gru2.redhat.com [10.97.4.171]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u67JxqEs017442; Thu, 7 Jul 2016 15:59:53 -0400 From: Eduardo Habkost To: Peter Maydell Date: Thu, 7 Jul 2016 16:59:13 -0300 Message-Id: <1467921562-11796-8-git-send-email-ehabkost@redhat.com> In-Reply-To: <1467921562-11796-1-git-send-email-ehabkost@redhat.com> References: <1467921562-11796-1-git-send-email-ehabkost@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Thu, 07 Jul 2016 19:59:53 +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] [PULL 07/16] target-i386: TCG can support CPUID.07H:EBX.erms 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 , qemu-devel@nongnu.org, Richard Henderson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Paolo Bonzini ERMS just says "rep movsb" and "rep stosb" are fast. It does not imply any new instruction, so we can support it easily. Signed-off-by: Paolo Bonzini Reviewed-by: Eduardo Habkost Signed-off-by: Eduardo Habkost --- target-i386/cpu.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/target-i386/cpu.c b/target-i386/cpu.c index 3bd3cfc..2227f22 100644 --- a/target-i386/cpu.c +++ b/target-i386/cpu.c @@ -358,10 +358,11 @@ static const char *cpuid_6_feature_name[] = { #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_PCOMMIT | CPUID_7_0_EBX_CLFLUSHOPT | \ - CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE) + CPUID_7_0_EBX_CLWB | CPUID_7_0_EBX_MPX | CPUID_7_0_EBX_FSGSBASE | \ + CPUID_7_0_EBX_ERMS) /* missing: 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, + CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM, CPUID_7_0_EBX_RDSEED */ #define TCG_7_0_ECX_FEATURES (CPUID_7_0_ECX_PKU | CPUID_7_0_ECX_OSPKE) #define TCG_APM_FEATURES 0