| 1 | #ifndef _ASM_X86_DISABLED_FEATURES_H |
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| 2 | #define _ASM_X86_DISABLED_FEATURES_H |
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| 3 | |
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| 4 | /* These features, although they might be available in a CPU |
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| 5 | * will not be used because the compile options to support |
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| 6 | * them are not present. |
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| 7 | * |
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| 8 | * This code allows them to be checked and disabled at |
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| 9 | * compile time without an explicit #ifdef. Use |
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| 10 | * cpu_feature_enabled(). |
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| 11 | */ |
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| 12 | |
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| 13 | #ifdef CONFIG_X86_UMIP |
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| 14 | # define DISABLE_UMIP 0 |
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| 15 | #else |
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| 16 | # define DISABLE_UMIP (1<<(X86_FEATURE_UMIP & 31)) |
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| 17 | #endif |
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| 18 | |
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| 19 | #ifdef CONFIG_X86_64 |
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| 20 | # define DISABLE_VME (1<<(X86_FEATURE_VME & 31)) |
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| 21 | # define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31)) |
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| 22 | # define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31)) |
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| 23 | # define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31)) |
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| 24 | # define DISABLE_PCID 0 |
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| 25 | #else |
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| 26 | # define DISABLE_VME 0 |
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| 27 | # define DISABLE_K6_MTRR 0 |
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| 28 | # define DISABLE_CYRIX_ARR 0 |
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| 29 | # define DISABLE_CENTAUR_MCR 0 |
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| 30 | # define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31)) |
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| 31 | #endif /* CONFIG_X86_64 */ |
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| 32 | |
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| 33 | #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS |
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| 34 | # define DISABLE_PKU 0 |
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| 35 | # define DISABLE_OSPKE 0 |
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| 36 | #else |
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| 37 | # define DISABLE_PKU (1<<(X86_FEATURE_PKU & 31)) |
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| 38 | # define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31)) |
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| 39 | #endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */ |
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| 40 | |
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| 41 | #ifdef CONFIG_X86_5LEVEL |
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| 42 | # define DISABLE_LA57 0 |
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| 43 | #else |
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| 44 | # define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31)) |
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| 45 | #endif |
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| 46 | |
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| 47 | #ifdef CONFIG_MITIGATION_PAGE_TABLE_ISOLATION |
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| 48 | # define DISABLE_PTI 0 |
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| 49 | #else |
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| 50 | # define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31)) |
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| 51 | #endif |
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| 52 | |
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| 53 | #ifdef CONFIG_MITIGATION_RETPOLINE |
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| 54 | # define DISABLE_RETPOLINE 0 |
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| 55 | #else |
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| 56 | # define DISABLE_RETPOLINE ((1 << (X86_FEATURE_RETPOLINE & 31)) | \ |
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| 57 | (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31))) |
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| 58 | #endif |
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| 59 | |
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| 60 | #ifdef CONFIG_MITIGATION_RETHUNK |
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| 61 | # define DISABLE_RETHUNK 0 |
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| 62 | #else |
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| 63 | # define DISABLE_RETHUNK (1 << (X86_FEATURE_RETHUNK & 31)) |
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| 64 | #endif |
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| 65 | |
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| 66 | #ifdef CONFIG_MITIGATION_UNRET_ENTRY |
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| 67 | # define DISABLE_UNRET 0 |
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| 68 | #else |
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| 69 | # define DISABLE_UNRET (1 << (X86_FEATURE_UNRET & 31)) |
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| 70 | #endif |
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| 71 | |
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| 72 | #ifdef CONFIG_MITIGATION_CALL_DEPTH_TRACKING |
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| 73 | # define DISABLE_CALL_DEPTH_TRACKING 0 |
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| 74 | #else |
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| 75 | # define DISABLE_CALL_DEPTH_TRACKING (1 << (X86_FEATURE_CALL_DEPTH & 31)) |
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| 76 | #endif |
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| 77 | |
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| 78 | #ifdef CONFIG_ADDRESS_MASKING |
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| 79 | # define DISABLE_LAM 0 |
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| 80 | #else |
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| 81 | # define DISABLE_LAM (1 << (X86_FEATURE_LAM & 31)) |
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| 82 | #endif |
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| 83 | |
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| 84 | #ifdef CONFIG_INTEL_IOMMU_SVM |
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| 85 | # define DISABLE_ENQCMD 0 |
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| 86 | #else |
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| 87 | # define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31)) |
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| 88 | #endif |
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| 89 | |
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| 90 | #ifdef CONFIG_X86_SGX |
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| 91 | # define DISABLE_SGX 0 |
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| 92 | #else |
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| 93 | # define DISABLE_SGX (1 << (X86_FEATURE_SGX & 31)) |
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| 94 | #endif |
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| 95 | |
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| 96 | #ifdef CONFIG_XEN_PV |
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| 97 | # define DISABLE_XENPV 0 |
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| 98 | #else |
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| 99 | # define DISABLE_XENPV (1 << (X86_FEATURE_XENPV & 31)) |
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| 100 | #endif |
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| 101 | |
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| 102 | #ifdef CONFIG_INTEL_TDX_GUEST |
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| 103 | # define DISABLE_TDX_GUEST 0 |
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| 104 | #else |
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| 105 | # define DISABLE_TDX_GUEST (1 << (X86_FEATURE_TDX_GUEST & 31)) |
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| 106 | #endif |
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| 107 | |
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| 108 | #ifdef CONFIG_X86_USER_SHADOW_STACK |
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| 109 | #define DISABLE_USER_SHSTK 0 |
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| 110 | #else |
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| 111 | #define DISABLE_USER_SHSTK (1 << (X86_FEATURE_USER_SHSTK & 31)) |
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| 112 | #endif |
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| 113 | |
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| 114 | #ifdef CONFIG_X86_KERNEL_IBT |
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| 115 | #define DISABLE_IBT 0 |
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| 116 | #else |
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| 117 | #define DISABLE_IBT (1 << (X86_FEATURE_IBT & 31)) |
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| 118 | #endif |
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| 119 | |
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| 120 | #ifdef CONFIG_X86_FRED |
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| 121 | # define DISABLE_FRED 0 |
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| 122 | #else |
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| 123 | # define DISABLE_FRED (1 << (X86_FEATURE_FRED & 31)) |
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| 124 | #endif |
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| 125 | |
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| 126 | #ifdef CONFIG_KVM_AMD_SEV |
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| 127 | #define DISABLE_SEV_SNP 0 |
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| 128 | #else |
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| 129 | #define DISABLE_SEV_SNP (1 << (X86_FEATURE_SEV_SNP & 31)) |
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| 130 | #endif |
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| 131 | |
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| 132 | /* |
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| 133 | * Make sure to add features to the correct mask |
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| 134 | */ |
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| 135 | #define DISABLED_MASK0 (DISABLE_VME) |
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| 136 | #define DISABLED_MASK1 0 |
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| 137 | #define DISABLED_MASK2 0 |
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| 138 | #define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR) |
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| 139 | #define DISABLED_MASK4 (DISABLE_PCID) |
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| 140 | #define DISABLED_MASK5 0 |
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| 141 | #define DISABLED_MASK6 0 |
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| 142 | #define DISABLED_MASK7 (DISABLE_PTI) |
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| 143 | #define DISABLED_MASK8 (DISABLE_XENPV|DISABLE_TDX_GUEST) |
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| 144 | #define DISABLED_MASK9 (DISABLE_SGX) |
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| 145 | #define DISABLED_MASK10 0 |
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| 146 | #define DISABLED_MASK11 (DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \ |
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| 147 | DISABLE_CALL_DEPTH_TRACKING|DISABLE_USER_SHSTK) |
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| 148 | #define DISABLED_MASK12 (DISABLE_FRED|DISABLE_LAM) |
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| 149 | #define DISABLED_MASK13 0 |
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| 150 | #define DISABLED_MASK14 0 |
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| 151 | #define DISABLED_MASK15 0 |
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| 152 | #define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \ |
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| 153 | DISABLE_ENQCMD) |
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| 154 | #define DISABLED_MASK17 0 |
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| 155 | #define DISABLED_MASK18 (DISABLE_IBT) |
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| 156 | #define DISABLED_MASK19 (DISABLE_SEV_SNP) |
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| 157 | #define DISABLED_MASK20 0 |
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| 158 | #define DISABLED_MASK21 0 |
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| 159 | #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 22) |
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| 160 | |
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| 161 | #endif /* _ASM_X86_DISABLED_FEATURES_H */ |
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| 162 | |
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