From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pa0-f53.google.com (mail-pa0-f53.google.com [209.85.220.53]) by kanga.kvack.org (Postfix) with ESMTP id 1220A6B0007 for ; Wed, 6 Jan 2016 19:01:45 -0500 (EST) Received: by mail-pa0-f53.google.com with SMTP id do7so5835745pab.2 for ; Wed, 06 Jan 2016 16:01:45 -0800 (PST) Received: from mga03.intel.com (mga03.intel.com. [134.134.136.65]) by mx.google.com with ESMTP id fm6si62871119pab.122.2016.01.06.16.01.12 for ; Wed, 06 Jan 2016 16:01:12 -0800 (PST) Subject: [PATCH 05/31] x86, pkeys: define new CR4 bit From: Dave Hansen Date: Wed, 06 Jan 2016 16:01:11 -0800 References: <20160107000104.1A105322@viggo.jf.intel.com> In-Reply-To: <20160107000104.1A105322@viggo.jf.intel.com> Message-Id: <20160107000111.AC9947FF@viggo.jf.intel.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, x86@kernel.org, Dave Hansen , dave.hansen@linux.intel.com From: Dave Hansen There is a new bit in CR4 for enabling protection keys. We will actually enable it later in the series. Signed-off-by: Dave Hansen Reviewed-by: Thomas Gleixner --- 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 2016-01-06 15:50:04.798119379 -0800 +++ b/arch/x86/include/uapi/asm/processor-flags.h 2016-01-06 15:50:04.801119514 -0800 @@ -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 _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org