Commit-ID: f28b49d2bcdb9ef9e771b3d6750f40be9d453316 Gitweb: http://git.kernel.org/tip/f28b49d2bcdb9ef9e771b3d6750f40be9d453316 Author: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx> AuthorDate: Fri, 12 Feb 2016 13:02:02 -0800 Committer: Ingo Molnar <mingo@xxxxxxxxxx> 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@xxxxxxxxxxxxxxx> Reviewed-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> Cc: Dave Hansen <dave@xxxxxxxx> Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxx> Cc: linux-mm@xxxxxxxxx Link: http://lkml.kernel.org/r/20160212210202.3CFC3DB2@xxxxxxxxxxxxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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