Messages in this thread Patch in this message | | | Subject | [PATCH 02/12] x86, pku: define new CR4 bit | From | Dave Hansen <> | Date | Thu, 07 May 2015 10:41:33 -0700 |
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There is a new bit in CR4 for enabling protection keys.
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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-1-cr4, arch/x86/include/uapi/asm/processor-flags.h --- a/arch/x86/include/uapi/asm/processor-flags.h~pkeys-1-cr4, 2015-05-07 10:31:41.384187278 -0700 +++ b/arch/x86/include/uapi/asm/processor-flags.h 2015-05-07 10:31:41.387187413 -0700 @@ -120,6 +120,8 @@ #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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