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kernel add
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#ifndef _ASM_X86_DISABLED_FEATURES_H
#define _ASM_X86_DISABLED_FEATURES_H
/* These features, although they might be available in a CPU
* will not be used because the compile options to support
* them are not present.
*
* This code allows them to be checked and disabled at
* compile time without an explicit #ifdef. Use
* cpu_feature_enabled().
*/
#ifdef CONFIG_X86_INTEL_MPX
# define DISABLE_MPX 0
#else
# define DISABLE_MPX (1<<(X86_FEATURE_MPX & 31))
#endif
#ifdef CONFIG_X86_64
# define DISABLE_VME (1<<(X86_FEATURE_VME & 31))
# define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
# define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
# define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
#else
# define DISABLE_VME 0
# define DISABLE_K6_MTRR 0
# define DISABLE_CYRIX_ARR 0
# define DISABLE_CENTAUR_MCR 0
#endif /* CONFIG_X86_64 */
/*
* Make sure to add features to the correct mask
*/
#define DISABLED_MASK0 (DISABLE_VME)
#define DISABLED_MASK1 0
#define DISABLED_MASK2 0
#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
#define DISABLED_MASK4 0
#define DISABLED_MASK5 0
#define DISABLED_MASK6 0
#define DISABLED_MASK7 0
#define DISABLED_MASK8 0
#define DISABLED_MASK9 (DISABLE_MPX)
#endif /* _ASM_X86_DISABLED_FEATURES_H */
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