1 #ifndef _ASM_X86_DISABLED_FEATURES_H
2 #define _ASM_X86_DISABLED_FEATURES_H
3 
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.
7  *
8  * This code allows them to be checked and disabled at
9  * compile time without an explicit #ifdef.  Use
10  * cpu_feature_enabled().
11  */
12 
13 #ifdef CONFIG_X86_UMIP
14 # define DISABLE_UMIP	0
15 #else
16 # define DISABLE_UMIP	(1<<(X86_FEATURE_UMIP & 31))
17 #endif
18 
19 #ifdef CONFIG_X86_64
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
25 #else
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 */
32 
33 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
34 # define DISABLE_PKU		0
35 # define DISABLE_OSPKE		0
36 #else
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 */
40 
41 #ifdef CONFIG_X86_5LEVEL
42 # define DISABLE_LA57	0
43 #else
44 # define DISABLE_LA57	(1<<(X86_FEATURE_LA57 & 31))
45 #endif
46 
47 #ifdef CONFIG_PAGE_TABLE_ISOLATION
48 # define DISABLE_PTI		0
49 #else
50 # define DISABLE_PTI		(1 << (X86_FEATURE_PTI & 31))
51 #endif
52 
53 #ifdef CONFIG_RETPOLINE
54 # define DISABLE_RETPOLINE	0
55 #else
56 # define DISABLE_RETPOLINE	((1 << (X86_FEATURE_RETPOLINE & 31)) | \
57 				 (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
58 #endif
59 
60 #ifdef CONFIG_RETHUNK
61 # define DISABLE_RETHUNK	0
62 #else
63 # define DISABLE_RETHUNK	(1 << (X86_FEATURE_RETHUNK & 31))
64 #endif
65 
66 #ifdef CONFIG_CPU_UNRET_ENTRY
67 # define DISABLE_UNRET		0
68 #else
69 # define DISABLE_UNRET		(1 << (X86_FEATURE_UNRET & 31))
70 #endif
71 
72 #ifdef CONFIG_CALL_DEPTH_TRACKING
73 # define DISABLE_CALL_DEPTH_TRACKING	0
74 #else
75 # define DISABLE_CALL_DEPTH_TRACKING	(1 << (X86_FEATURE_CALL_DEPTH & 31))
76 #endif
77 
78 #ifdef CONFIG_ADDRESS_MASKING
79 # define DISABLE_LAM		0
80 #else
81 # define DISABLE_LAM		(1 << (X86_FEATURE_LAM & 31))
82 #endif
83 
84 #ifdef CONFIG_INTEL_IOMMU_SVM
85 # define DISABLE_ENQCMD		0
86 #else
87 # define DISABLE_ENQCMD		(1 << (X86_FEATURE_ENQCMD & 31))
88 #endif
89 
90 #ifdef CONFIG_X86_SGX
91 # define DISABLE_SGX	0
92 #else
93 # define DISABLE_SGX	(1 << (X86_FEATURE_SGX & 31))
94 #endif
95 
96 #ifdef CONFIG_XEN_PV
97 # define DISABLE_XENPV		0
98 #else
99 # define DISABLE_XENPV		(1 << (X86_FEATURE_XENPV & 31))
100 #endif
101 
102 #ifdef CONFIG_INTEL_TDX_GUEST
103 # define DISABLE_TDX_GUEST	0
104 #else
105 # define DISABLE_TDX_GUEST	(1 << (X86_FEATURE_TDX_GUEST & 31))
106 #endif
107 
108 #ifdef CONFIG_X86_USER_SHADOW_STACK
109 #define DISABLE_USER_SHSTK	0
110 #else
111 #define DISABLE_USER_SHSTK	(1 << (X86_FEATURE_USER_SHSTK & 31))
112 #endif
113 
114 #ifdef CONFIG_X86_KERNEL_IBT
115 #define DISABLE_IBT	0
116 #else
117 #define DISABLE_IBT	(1 << (X86_FEATURE_IBT & 31))
118 #endif
119 
120 /*
121  * Make sure to add features to the correct mask
122  */
123 #define DISABLED_MASK0	(DISABLE_VME)
124 #define DISABLED_MASK1	0
125 #define DISABLED_MASK2	0
126 #define DISABLED_MASK3	(DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
127 #define DISABLED_MASK4	(DISABLE_PCID)
128 #define DISABLED_MASK5	0
129 #define DISABLED_MASK6	0
130 #define DISABLED_MASK7	(DISABLE_PTI)
131 #define DISABLED_MASK8	(DISABLE_XENPV|DISABLE_TDX_GUEST)
132 #define DISABLED_MASK9	(DISABLE_SGX)
133 #define DISABLED_MASK10	0
134 #define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \
135 			 DISABLE_CALL_DEPTH_TRACKING|DISABLE_USER_SHSTK)
136 #define DISABLED_MASK12	(DISABLE_LAM)
137 #define DISABLED_MASK13	0
138 #define DISABLED_MASK14	0
139 #define DISABLED_MASK15	0
140 #define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
141 			 DISABLE_ENQCMD)
142 #define DISABLED_MASK17	0
143 #define DISABLED_MASK18	(DISABLE_IBT)
144 #define DISABLED_MASK19	0
145 #define DISABLED_MASK20	0
146 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21)
147 
148 #endif /* _ASM_X86_DISABLED_FEATURES_H */
149