From: Dave Hansen <[email protected]> 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 <[email protected]> Reviewed-by: Thomas Gleixner <[email protected]> --- 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 2016-02-12 10:44:16.803272741 -0800 +++ b/arch/x86/include/uapi/asm/processor-flags.h 2016-02-12 10:44:16.807272924 -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 _
