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Date: Thu, 18 Feb 2016 12:17:35 -0800 From: tip-bot for Dave Hansen <tipbot@...or.com> To: linux-tip-commits@...r.kernel.org Cc: linux-kernel@...r.kernel.org, riel@...hat.com, dave.hansen@...ux.intel.com, akpm@...ux-foundation.org, peterz@...radead.org, luto@...capital.net, torvalds@...ux-foundation.org, dvlasenk@...hat.com, mingo@...nel.org, bp@...en8.de, brgerst@...il.com, hpa@...or.com, tglx@...utronix.de, dave@...1.net Subject: [tip:mm/pkeys] x86/cpu, x86/mm/pkeys: Define new CR4 bit Commit-ID: f28b49d2bcdb9ef9e771b3d6750f40be9d453316 Gitweb: http://git.kernel.org/tip/f28b49d2bcdb9ef9e771b3d6750f40be9d453316 Author: Dave Hansen <dave.hansen@...ux.intel.com> AuthorDate: Fri, 12 Feb 2016 13:02:02 -0800 Committer: Ingo Molnar <mingo@...nel.org> CommitDate: Tue, 16 Feb 2016 10:11:14 +0100 x86/cpu, x86/mm/pkeys: Define new CR4 bit 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 <dave.hansen@...ux.intel.com> Reviewed-by: Thomas Gleixner <tglx@...utronix.de> Cc: Andrew Morton <akpm@...ux-foundation.org> Cc: Andy Lutomirski <luto@...capital.net> Cc: Borislav Petkov <bp@...en8.de> Cc: Brian Gerst <brgerst@...il.com> Cc: Dave Hansen <dave@...1.net> Cc: Denys Vlasenko <dvlasenk@...hat.com> Cc: H. Peter Anvin <hpa@...or.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Rik van Riel <riel@...hat.com> Cc: linux-mm@...ck.org Link: http://lkml.kernel.org/r/20160212210202.3CFC3DB2@viggo.jf.intel.com Signed-off-by: Ingo Molnar <mingo@...nel.org> --- arch/x86/include/uapi/asm/processor-flags.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/include/uapi/asm/processor-flags.h b/arch/x86/include/uapi/asm/processor-flags.h index 79887ab..567de50 100644 --- a/arch/x86/include/uapi/asm/processor-flags.h +++ b/arch/x86/include/uapi/asm/processor-flags.h @@ -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
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