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_MITIGATION_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_MITIGATION_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_MITIGATION_RETHUNK 61# define DISABLE_RETHUNK 0 62#else 63# define DISABLE_RETHUNK (1 << (X86_FEATURE_RETHUNK & 31)) 64#endif 65 66#ifdef CONFIG_MITIGATION_UNRET_ENTRY 67# define DISABLE_UNRET 0 68#else 69# define DISABLE_UNRET (1 << (X86_FEATURE_UNRET & 31)) 70#endif 71 72#ifdef CONFIG_MITIGATION_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#ifdef CONFIG_X86_FRED 121# define DISABLE_FRED 0 122#else 123# define DISABLE_FRED (1 << (X86_FEATURE_FRED & 31)) 124#endif 125 126#ifdef CONFIG_KVM_AMD_SEV 127#define DISABLE_SEV_SNP 0 128#else 129#define DISABLE_SEV_SNP (1 << (X86_FEATURE_SEV_SNP & 31)) 130#endif 131 132/* 133 * Make sure to add features to the correct mask 134 */ 135#define DISABLED_MASK0 (DISABLE_VME) 136#define DISABLED_MASK1 0 137#define DISABLED_MASK2 0 138#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR) 139#define DISABLED_MASK4 (DISABLE_PCID) 140#define DISABLED_MASK5 0 141#define DISABLED_MASK6 0 142#define DISABLED_MASK7 (DISABLE_PTI) 143#define DISABLED_MASK8 (DISABLE_XENPV|DISABLE_TDX_GUEST) 144#define DISABLED_MASK9 (DISABLE_SGX) 145#define DISABLED_MASK10 0 146#define DISABLED_MASK11 (DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \ 147 DISABLE_CALL_DEPTH_TRACKING|DISABLE_USER_SHSTK) 148#define DISABLED_MASK12 (DISABLE_FRED|DISABLE_LAM) 149#define DISABLED_MASK13 0 150#define DISABLED_MASK14 0 151#define DISABLED_MASK15 0 152#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \ 153 DISABLE_ENQCMD) 154#define DISABLED_MASK17 0 155#define DISABLED_MASK18 (DISABLE_IBT) 156#define DISABLED_MASK19 (DISABLE_SEV_SNP) 157#define DISABLED_MASK20 0 158#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21) 159 160#endif /* _ASM_X86_DISABLED_FEATURES_H */ 161