disabled-features.h (2833B)
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_INTEL_IOMMU_SVM 54# define DISABLE_ENQCMD 0 55#else 56# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31)) 57#endif 58 59#ifdef CONFIG_X86_SGX 60# define DISABLE_SGX 0 61#else 62# define DISABLE_SGX (1 << (X86_FEATURE_SGX & 31)) 63#endif 64 65#ifdef CONFIG_INTEL_TDX_GUEST 66# define DISABLE_TDX_GUEST 0 67#else 68# define DISABLE_TDX_GUEST (1 << (X86_FEATURE_TDX_GUEST & 31)) 69#endif 70 71#ifdef CONFIG_AMD_MEM_ENCRYPT 72# define DISABLE_SEV_SNP 0 73#else 74# define DISABLE_SEV_SNP (1 << (X86_FEATURE_SEV_SNP & 31)) 75#endif 76 77/* 78 * Make sure to add features to the correct mask 79 */ 80#define DISABLED_MASK0 (DISABLE_VME) 81#define DISABLED_MASK1 0 82#define DISABLED_MASK2 0 83#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR) 84#define DISABLED_MASK4 (DISABLE_PCID) 85#define DISABLED_MASK5 0 86#define DISABLED_MASK6 0 87#define DISABLED_MASK7 (DISABLE_PTI) 88#define DISABLED_MASK8 (DISABLE_TDX_GUEST) 89#define DISABLED_MASK9 (DISABLE_SGX) 90#define DISABLED_MASK10 0 91#define DISABLED_MASK11 0 92#define DISABLED_MASK12 0 93#define DISABLED_MASK13 0 94#define DISABLED_MASK14 0 95#define DISABLED_MASK15 0 96#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \ 97 DISABLE_ENQCMD) 98#define DISABLED_MASK17 0 99#define DISABLED_MASK18 0 100#define DISABLED_MASK19 (DISABLE_SEV_SNP) 101#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 20) 102 103#endif /* _ASM_X86_DISABLED_FEATURES_H */