From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753688AbbIPRtL (ORCPT ); Wed, 16 Sep 2015 13:49:11 -0400 Received: from mga09.intel.com ([134.134.136.24]:17283 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753168AbbIPRtF (ORCPT ); Wed, 16 Sep 2015 13:49:05 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.17,540,1437462000"; d="scan'208";a="562957947" Subject: [PATCH 04/26] x86, pku: define new CR4 bit To: dave@sr71.net Cc: x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org From: Dave Hansen Date: Wed, 16 Sep 2015 10:49:04 -0700 References: <20150916174903.E112E464@viggo.jf.intel.com> In-Reply-To: <20150916174903.E112E464@viggo.jf.intel.com> Message-Id: <20150916174904.0AAA8BFC@viggo.jf.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org There is a new bit in CR4 for enabling protection keys. We will actually enable it later in the series. --- b/arch/x86/include/uapi/asm/processor-flags.h | 2 ++ 1 file changed, 2 insertions(+) diff -puN arch/x86/include/uapi/asm/processor-flags.h~pkeys-02-cr4 arch/x86/include/uapi/asm/processor-flags.h --- a/arch/x86/include/uapi/asm/processor-flags.h~pkeys-02-cr4 2015-09-16 10:48:12.921041130 -0700 +++ b/arch/x86/include/uapi/asm/processor-flags.h 2015-09-16 10:48:12.924041266 -0700 @@ -118,6 +118,8 @@ #define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT) #define X86_CR4_SMAP_BIT 21 /* enable SMAP support */ #define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT) +#define X86_CR4_PKE_BIT 22 /* enable Protection Keys support */ +#define X86_CR4_PKE _BITUL(X86_CR4_PKE_BIT) /* * x86-64 Task Priority Register, CR8 _