x86, cpufeature: Add feature bit for SMAP

Add CPUID feature bit for Supervisor Mode Access Prevention (SMAP).

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/n/tip-ethzcr5nipikl6hd5q8ssepq@git.kernel.org

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 6b7ee5f..633b617 100644 (file)
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -209,6 +209,7 @@
 #define X86_FEATURE_RTM                (9*32+11) /* Restricted Transactional Memory */
 #define X86_FEATURE_RDSEED     (9*32+18) /* The RDSEED instruction */
 #define X86_FEATURE_ADX                (9*32+19) /* The ADCX and ADOX instructions */
+#define X86_FEATURE_SMAP       (9*32+20) /* Supervisor Mode Access Prevention */
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)