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_UMIP
14 # define DISABLE_UMIP 0
16 # define DISABLE_UMIP (1<<(X86_FEATURE_UMIP & 31))
20 # define DISABLE_VME (1<<(X86_FEATURE_VME & 31))
21 # define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
22 # define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
23 # define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
24 # define DISABLE_PCID 0
26 # define DISABLE_VME 0
27 # define DISABLE_K6_MTRR 0
28 # define DISABLE_CYRIX_ARR 0
29 # define DISABLE_CENTAUR_MCR 0
30 # define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31))
31 #endif /* CONFIG_X86_64 */
33 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
34 # define DISABLE_PKU 0
35 # define DISABLE_OSPKE 0
37 # define DISABLE_PKU (1<<(X86_FEATURE_PKU & 31))
38 # define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31))
39 #endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
41 #ifdef CONFIG_X86_5LEVEL
42 # define DISABLE_LA57 0
44 # define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
47 #ifdef CONFIG_PAGE_TABLE_ISOLATION
48 # define DISABLE_PTI 0
50 # define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
53 #ifdef CONFIG_RETPOLINE
54 # define DISABLE_RETPOLINE 0
56 # define DISABLE_RETPOLINE ((1 << (X86_FEATURE_RETPOLINE & 31)) | \
57 (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
61 # define DISABLE_RETHUNK 0
63 # define DISABLE_RETHUNK (1 << (X86_FEATURE_RETHUNK & 31))
66 #ifdef CONFIG_CPU_UNRET_ENTRY
67 # define DISABLE_UNRET 0
69 # define DISABLE_UNRET (1 << (X86_FEATURE_UNRET & 31))
72 #ifdef CONFIG_CALL_DEPTH_TRACKING
73 # define DISABLE_CALL_DEPTH_TRACKING 0
75 # define DISABLE_CALL_DEPTH_TRACKING (1 << (X86_FEATURE_CALL_DEPTH & 31))
78 #ifdef CONFIG_ADDRESS_MASKING
79 # define DISABLE_LAM 0
81 # define DISABLE_LAM (1 << (X86_FEATURE_LAM & 31))
84 #ifdef CONFIG_INTEL_IOMMU_SVM
85 # define DISABLE_ENQCMD 0
87 # define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
91 # define DISABLE_SGX 0
93 # define DISABLE_SGX (1 << (X86_FEATURE_SGX & 31))
97 # define DISABLE_XENPV 0
99 # define DISABLE_XENPV (1 << (X86_FEATURE_XENPV & 31))
102 #ifdef CONFIG_INTEL_TDX_GUEST
103 # define DISABLE_TDX_GUEST 0
105 # define DISABLE_TDX_GUEST (1 << (X86_FEATURE_TDX_GUEST & 31))
109 * Make sure to add features to the correct mask
111 #define DISABLED_MASK0 (DISABLE_VME)
112 #define DISABLED_MASK1 0
113 #define DISABLED_MASK2 0
114 #define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
115 #define DISABLED_MASK4 (DISABLE_PCID)
116 #define DISABLED_MASK5 0
117 #define DISABLED_MASK6 0
118 #define DISABLED_MASK7 (DISABLE_PTI)
119 #define DISABLED_MASK8 (DISABLE_XENPV|DISABLE_TDX_GUEST)
120 #define DISABLED_MASK9 (DISABLE_SGX)
121 #define DISABLED_MASK10 0
122 #define DISABLED_MASK11 (DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \
123 DISABLE_CALL_DEPTH_TRACKING)
124 #define DISABLED_MASK12 (DISABLE_LAM)
125 #define DISABLED_MASK13 0
126 #define DISABLED_MASK14 0
127 #define DISABLED_MASK15 0
128 #define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
130 #define DISABLED_MASK17 0
131 #define DISABLED_MASK18 0
132 #define DISABLED_MASK19 0
133 #define DISABLED_MASK20 0
134 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21)
136 #endif /* _ASM_X86_DISABLED_FEATURES_H */