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_INTEL_MPX
14# define DISABLE_MPX 0
15#else
16# define DISABLE_MPX (1<<(X86_FEATURE_MPX & 31))
17#endif
18
19#ifdef CONFIG_X86_SMAP
20# define DISABLE_SMAP 0
21#else
22# define DISABLE_SMAP (1<<(X86_FEATURE_SMAP & 31))
23#endif
24
25#ifdef CONFIG_X86_INTEL_UMIP
26# define DISABLE_UMIP 0
27#else
28# define DISABLE_UMIP (1<<(X86_FEATURE_UMIP & 31))
29#endif
30
31#ifdef CONFIG_X86_64
32# define DISABLE_VME (1<<(X86_FEATURE_VME & 31))
33# define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
34# define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
35# define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
36# define DISABLE_PCID 0
37#else
38# define DISABLE_VME 0
39# define DISABLE_K6_MTRR 0
40# define DISABLE_CYRIX_ARR 0
41# define DISABLE_CENTAUR_MCR 0
42# define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31))
43#endif /* CONFIG_X86_64 */
44
45#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
46# define DISABLE_PKU 0
47# define DISABLE_OSPKE 0
48#else
49# define DISABLE_PKU (1<<(X86_FEATURE_PKU & 31))
50# define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31))
51#endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
52
53#ifdef CONFIG_X86_5LEVEL
54# define DISABLE_LA57 0
55#else
56# define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
57#endif
58
59#ifdef CONFIG_PAGE_TABLE_ISOLATION
60# define DISABLE_PTI 0
61#else
62# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
63#endif
64
65/*
66 * Make sure to add features to the correct mask
67 */
68#define DISABLED_MASK0 (DISABLE_VME)
69#define DISABLED_MASK1 0
70#define DISABLED_MASK2 0
71#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
72#define DISABLED_MASK4 (DISABLE_PCID)
73#define DISABLED_MASK5 0
74#define DISABLED_MASK6 0
75#define DISABLED_MASK7 (DISABLE_PTI)
76#define DISABLED_MASK8 0
77#define DISABLED_MASK9 (DISABLE_MPX|DISABLE_SMAP)
78#define DISABLED_MASK10 0
79#define DISABLED_MASK11 0
80#define DISABLED_MASK12 0
81#define DISABLED_MASK13 0
82#define DISABLED_MASK14 0
83#define DISABLED_MASK15 0
84#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP)
85#define DISABLED_MASK17 0
86#define DISABLED_MASK18 0
87#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 19)
88
89#endif /* _ASM_X86_DISABLED_FEATURES_H */
90