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_SMAP
14# define DISABLE_SMAP	0
15#else
16# define DISABLE_SMAP	(1<<(X86_FEATURE_SMAP & 31))
17#endif
18
19#ifdef CONFIG_X86_UMIP
20# define DISABLE_UMIP	0
21#else
22# define DISABLE_UMIP	(1<<(X86_FEATURE_UMIP & 31))
23#endif
24
25#ifdef CONFIG_X86_64
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
31#else
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 */
38
39#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
40# define DISABLE_PKU		0
41# define DISABLE_OSPKE		0
42#else
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 */
46
47#ifdef CONFIG_X86_5LEVEL
48# define DISABLE_LA57	0
49#else
50# define DISABLE_LA57	(1<<(X86_FEATURE_LA57 & 31))
51#endif
52
53#ifdef CONFIG_PAGE_TABLE_ISOLATION
54# define DISABLE_PTI		0
55#else
56# define DISABLE_PTI		(1 << (X86_FEATURE_PTI & 31))
57#endif
58
59#ifdef CONFIG_RETPOLINE
60# define DISABLE_RETPOLINE	0
61#else
62# define DISABLE_RETPOLINE	((1 << (X86_FEATURE_RETPOLINE & 31)) | \
63				 (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
64#endif
65
66#ifdef CONFIG_RETHUNK
67# define DISABLE_RETHUNK	0
68#else
69# define DISABLE_RETHUNK	(1 << (X86_FEATURE_RETHUNK & 31))
70#endif
71
72#ifdef CONFIG_CPU_UNRET_ENTRY
73# define DISABLE_UNRET		0
74#else
75# define DISABLE_UNRET		(1 << (X86_FEATURE_UNRET & 31))
76#endif
77
78#ifdef CONFIG_IOMMU_SUPPORT
79# define DISABLE_ENQCMD	0
80#else
81# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
82#endif
83
84/*
85 * Make sure to add features to the correct mask
86 */
87#define DISABLED_MASK0	(DISABLE_VME)
88#define DISABLED_MASK1	0
89#define DISABLED_MASK2	0
90#define DISABLED_MASK3	(DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
91#define DISABLED_MASK4	(DISABLE_PCID)
92#define DISABLED_MASK5	0
93#define DISABLED_MASK6	0
94#define DISABLED_MASK7	(DISABLE_PTI)
95#define DISABLED_MASK8	0
96#define DISABLED_MASK9	(DISABLE_SMAP)
97#define DISABLED_MASK10	0
98#define DISABLED_MASK11	(DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET)
99#define DISABLED_MASK12	0
100#define DISABLED_MASK13	0
101#define DISABLED_MASK14	0
102#define DISABLED_MASK15	0
103#define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
104			 DISABLE_ENQCMD)
105#define DISABLED_MASK17	0
106#define DISABLED_MASK18	0
107#define DISABLED_MASK19	0
108#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20)
109
110#endif /* _ASM_X86_DISABLED_FEATURES_H */
111