tools/arch/x86/include/asm/disabled-features.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_DISABLED_FEATURES_H
   3 #define _ASM_X86_DISABLED_FEATURES_H
   4
   5 /* These features, although they might be available in a CPU
   6  * will not be used because the compile options to support
   7  * them are not present.
   8  *
   9  * This code allows them to be checked and disabled at
  10  * compile time without an explicit #ifdef.  Use
  11  * cpu_feature_enabled().
  12  */
  13
  14 #ifdef CONFIG_X86_INTEL_MPX
  15 # define DISABLE_MPX    0
  16 #else
  17 # define DISABLE_MPX    (1<<(X86_FEATURE_MPX & 31))
  18 #endif
  19
  20 #ifdef CONFIG_X86_64
  21 # define DISABLE_VME            (1<<(X86_FEATURE_VME & 31))
  22 # define DISABLE_K6_MTRR        (1<<(X86_FEATURE_K6_MTRR & 31))
  23 # define DISABLE_CYRIX_ARR      (1<<(X86_FEATURE_CYRIX_ARR & 31))
  24 # define DISABLE_CENTAUR_MCR    (1<<(X86_FEATURE_CENTAUR_MCR & 31))
  25 # define DISABLE_PCID           0
  26 #else
  27 # define DISABLE_VME            0
  28 # define DISABLE_K6_MTRR        0
  29 # define DISABLE_CYRIX_ARR      0
  30 # define DISABLE_CENTAUR_MCR    0
  31 # define DISABLE_PCID           (1<<(X86_FEATURE_PCID & 31))
  32 #endif /* CONFIG_X86_64 */
  33
  34 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
  35 # define DISABLE_PKU            0
  36 # define DISABLE_OSPKE          0
  37 #else
  38 # define DISABLE_PKU            (1<<(X86_FEATURE_PKU & 31))
  39 # define DISABLE_OSPKE          (1<<(X86_FEATURE_OSPKE & 31))
  40 #endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
  41
  42 #ifdef CONFIG_X86_5LEVEL
  43 # define DISABLE_LA57   0
  44 #else
  45 # define DISABLE_LA57   (1<<(X86_FEATURE_LA57 & 31))
  46 #endif
  47
  48 /*
  49  * Make sure to add features to the correct mask
  50  */
  51 #define DISABLED_MASK0  (DISABLE_VME)
  52 #define DISABLED_MASK1  0
  53 #define DISABLED_MASK2  0
  54 #define DISABLED_MASK3  (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
  55 #define DISABLED_MASK4  (DISABLE_PCID)
  56 #define DISABLED_MASK5  0
  57 #define DISABLED_MASK6  0
  58 #define DISABLED_MASK7  0
  59 #define DISABLED_MASK8  0
  60 #define DISABLED_MASK9  (DISABLE_MPX)
  61 #define DISABLED_MASK10 0
  62 #define DISABLED_MASK11 0
  63 #define DISABLED_MASK12 0
  64 #define DISABLED_MASK13 0
  65 #define DISABLED_MASK14 0
  66 #define DISABLED_MASK15 0
  67 #define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57)
  68 #define DISABLED_MASK17 0
  69 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18)
  70
  71 #endif /* _ASM_X86_DISABLED_FEATURES_H */