1 #ifndef _ASM_X86_DISABLED_FEATURES_H
2 #define _ASM_X86_DISABLED_FEATURES_H
4 /* These features, although they might be available in a CPU
5 * will not be used because the compile options to support
6 * them are not present.
8 * This code allows them to be checked and disabled at
9 * compile time without an explicit #ifdef. Use
10 * cpu_feature_enabled().
13 #ifdef CONFIG_X86_SMAP
14 # define DISABLE_SMAP 0
16 # define DISABLE_SMAP (1<<(X86_FEATURE_SMAP & 31))
19 #ifdef CONFIG_X86_UMIP
20 # define DISABLE_UMIP 0
22 # define DISABLE_UMIP (1<<(X86_FEATURE_UMIP & 31))
26 # define DISABLE_VME (1<<(X86_FEATURE_VME & 31))
27 # define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
28 # define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
29 # define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
30 # define DISABLE_PCID 0
32 # define DISABLE_VME 0
33 # define DISABLE_K6_MTRR 0
34 # define DISABLE_CYRIX_ARR 0
35 # define DISABLE_CENTAUR_MCR 0
36 # define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31))
37 #endif /* CONFIG_X86_64 */
39 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
40 # define DISABLE_PKU 0
41 # define DISABLE_OSPKE 0
43 # define DISABLE_PKU (1<<(X86_FEATURE_PKU & 31))
44 # define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31))
45 #endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
47 #ifdef CONFIG_X86_5LEVEL
48 # define DISABLE_LA57 0
50 # define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
53 #ifdef CONFIG_PAGE_TABLE_ISOLATION
54 # define DISABLE_PTI 0
56 # define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
59 #ifdef CONFIG_IOMMU_SUPPORT
60 # define DISABLE_ENQCMD 0
62 # define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
66 # define DISABLE_SGX 0
68 # define DISABLE_SGX (1 << (X86_FEATURE_SGX & 31))
72 * Make sure to add features to the correct mask
74 #define DISABLED_MASK0 (DISABLE_VME)
75 #define DISABLED_MASK1 0
76 #define DISABLED_MASK2 0
77 #define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
78 #define DISABLED_MASK4 (DISABLE_PCID)
79 #define DISABLED_MASK5 0
80 #define DISABLED_MASK6 0
81 #define DISABLED_MASK7 (DISABLE_PTI)
82 #define DISABLED_MASK8 0
83 #define DISABLED_MASK9 (DISABLE_SMAP|DISABLE_SGX)
84 #define DISABLED_MASK10 0
85 #define DISABLED_MASK11 0
86 #define DISABLED_MASK12 0
87 #define DISABLED_MASK13 0
88 #define DISABLED_MASK14 0
89 #define DISABLED_MASK15 0
90 #define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
92 #define DISABLED_MASK17 0
93 #define DISABLED_MASK18 0
94 #define DISABLED_MASK19 0
95 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20)
97 #endif /* _ASM_X86_DISABLED_FEATURES_H */