From patchwork Fri Feb 21 17:33:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liu, Jinsong" X-Patchwork-Id: 322963 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 AC8522C0236 for ; Sat, 22 Feb 2014 04:35:55 +1100 (EST) Received: from localhost ([::1]:46068 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WGu0u-00070m-Hm for incoming@patchwork.ozlabs.org; Fri, 21 Feb 2014 12:35:52 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50839) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WGu0X-0006zU-PK for qemu-devel@nongnu.org; Fri, 21 Feb 2014 12:35:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WGu0S-0004Y4-PZ for qemu-devel@nongnu.org; Fri, 21 Feb 2014 12:35:29 -0500 Received: from mga02.intel.com ([134.134.136.20]:51655) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WGu0S-00047r-Iq for qemu-devel@nongnu.org; Fri, 21 Feb 2014 12:35:24 -0500 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga101.jf.intel.com with ESMTP; 21 Feb 2014 09:34:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,520,1389772800"; d="scan'208,223";a="487300389" Received: from fmsmsx104.amr.corp.intel.com ([10.19.9.35]) by orsmga002.jf.intel.com with ESMTP; 21 Feb 2014 09:34:01 -0800 Received: from fmsmsx113.amr.corp.intel.com (10.18.116.7) by FMSMSX104.amr.corp.intel.com (10.19.9.35) with Microsoft SMTP Server (TLS) id 14.3.123.3; Fri, 21 Feb 2014 09:33:36 -0800 Received: from shsmsx152.ccr.corp.intel.com (10.239.6.52) by FMSMSX113.amr.corp.intel.com (10.18.116.7) with Microsoft SMTP Server (TLS) id 14.3.123.3; Fri, 21 Feb 2014 09:33:35 -0800 Received: from shsmsx101.ccr.corp.intel.com ([169.254.1.26]) by SHSMSX152.ccr.corp.intel.com ([169.254.6.91]) with mapi id 14.03.0123.003; Sat, 22 Feb 2014 01:33:33 +0800 From: "Liu, Jinsong" To: Paolo Bonzini Thread-Topic: [PATCH] KVM: x86: expose new instruction RDSEED to guest Thread-Index: Ac8vKwrDtngjoNzxQYOuRR/jMh3KJg== Date: Fri, 21 Feb 2014 17:33:32 +0000 Message-ID: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 134.134.136.20 Cc: "qemu-devel@nongnu.org" , "kvm@vger.kernel.org" , "gleb@redhat.com" , "linux-kernel@vger.kernel.org" Subject: [Qemu-devel] [PATCH] KVM: x86: expose new instruction RDSEED to guest 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 From 24ffdce9efebf13c6ed4882f714b2b57ef1141eb Mon Sep 17 00:00:00 2001 From: Liu Jinsong Date: Thu, 20 Feb 2014 17:38:26 +0800 Subject: [PATCH] KVM: x86: expose new instruction RDSEED to guest RDSEED instruction return a random number, which supplied by a cryptographically secure, deterministic random bit generator(DRBG). Signed-off-by: Xudong Hao Signed-off-by: Liu Jinsong --- arch/x86/kvm/cpuid.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index c697625..abe18b4 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -303,7 +303,7 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, /* cpuid 7.0.ebx */ const u32 kvm_supported_word9_x86_features = F(FSGSBASE) | F(BMI1) | F(HLE) | F(AVX2) | F(SMEP) | - F(BMI2) | F(ERMS) | f_invpcid | F(RTM); + F(BMI2) | F(ERMS) | f_invpcid | F(RTM) | F(RDSEED); /* all calls to cpuid_count() should be made on the same cpu */ get_cpu();