| 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
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| 2 | #ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H |
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| 3 | #define _UAPI_ASM_X86_PROCESSOR_FLAGS_H |
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| 4 | /* Various flags defined: can be included from assembler. */ |
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| 5 | |
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| 6 | #include <linux/const.h> |
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| 7 | |
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| 8 | /* |
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| 9 | * EFLAGS bits |
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| 10 | */ |
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| 11 | #define X86_EFLAGS_CF_BIT 0 /* Carry Flag */ |
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| 12 | #define X86_EFLAGS_CF _BITUL(X86_EFLAGS_CF_BIT) |
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| 13 | #define X86_EFLAGS_FIXED_BIT 1 /* Bit 1 - always on */ |
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| 14 | #define X86_EFLAGS_FIXED _BITUL(X86_EFLAGS_FIXED_BIT) |
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| 15 | #define X86_EFLAGS_PF_BIT 2 /* Parity Flag */ |
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| 16 | #define X86_EFLAGS_PF _BITUL(X86_EFLAGS_PF_BIT) |
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| 17 | #define X86_EFLAGS_AF_BIT 4 /* Auxiliary carry Flag */ |
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| 18 | #define X86_EFLAGS_AF _BITUL(X86_EFLAGS_AF_BIT) |
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| 19 | #define X86_EFLAGS_ZF_BIT 6 /* Zero Flag */ |
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| 20 | #define X86_EFLAGS_ZF _BITUL(X86_EFLAGS_ZF_BIT) |
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| 21 | #define X86_EFLAGS_SF_BIT 7 /* Sign Flag */ |
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| 22 | #define X86_EFLAGS_SF _BITUL(X86_EFLAGS_SF_BIT) |
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| 23 | #define X86_EFLAGS_TF_BIT 8 /* Trap Flag */ |
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| 24 | #define X86_EFLAGS_TF _BITUL(X86_EFLAGS_TF_BIT) |
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| 25 | #define X86_EFLAGS_IF_BIT 9 /* Interrupt Flag */ |
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| 26 | #define X86_EFLAGS_IF _BITUL(X86_EFLAGS_IF_BIT) |
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| 27 | #define X86_EFLAGS_DF_BIT 10 /* Direction Flag */ |
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| 28 | #define X86_EFLAGS_DF _BITUL(X86_EFLAGS_DF_BIT) |
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| 29 | #define X86_EFLAGS_OF_BIT 11 /* Overflow Flag */ |
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| 30 | #define X86_EFLAGS_OF _BITUL(X86_EFLAGS_OF_BIT) |
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| 31 | #define X86_EFLAGS_IOPL_BIT 12 /* I/O Privilege Level (2 bits) */ |
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| 32 | #define X86_EFLAGS_IOPL (_AC(3,UL) << X86_EFLAGS_IOPL_BIT) |
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| 33 | #define X86_EFLAGS_NT_BIT 14 /* Nested Task */ |
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| 34 | #define X86_EFLAGS_NT _BITUL(X86_EFLAGS_NT_BIT) |
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| 35 | #define X86_EFLAGS_RF_BIT 16 /* Resume Flag */ |
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| 36 | #define X86_EFLAGS_RF _BITUL(X86_EFLAGS_RF_BIT) |
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| 37 | #define X86_EFLAGS_VM_BIT 17 /* Virtual Mode */ |
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| 38 | #define X86_EFLAGS_VM _BITUL(X86_EFLAGS_VM_BIT) |
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| 39 | #define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */ |
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| 40 | #define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT) |
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| 41 | #define X86_EFLAGS_VIF_BIT 19 /* Virtual Interrupt Flag */ |
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| 42 | #define X86_EFLAGS_VIF _BITUL(X86_EFLAGS_VIF_BIT) |
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| 43 | #define X86_EFLAGS_VIP_BIT 20 /* Virtual Interrupt Pending */ |
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| 44 | #define X86_EFLAGS_VIP _BITUL(X86_EFLAGS_VIP_BIT) |
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| 45 | #define X86_EFLAGS_ID_BIT 21 /* CPUID detection */ |
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| 46 | #define X86_EFLAGS_ID _BITUL(X86_EFLAGS_ID_BIT) |
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| 47 | |
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| 48 | /* |
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| 49 | * Basic CPU control in CR0 |
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| 50 | */ |
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| 51 | #define X86_CR0_PE_BIT 0 /* Protection Enable */ |
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| 52 | #define X86_CR0_PE _BITUL(X86_CR0_PE_BIT) |
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| 53 | #define X86_CR0_MP_BIT 1 /* Monitor Coprocessor */ |
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| 54 | #define X86_CR0_MP _BITUL(X86_CR0_MP_BIT) |
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| 55 | #define X86_CR0_EM_BIT 2 /* Emulation */ |
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| 56 | #define X86_CR0_EM _BITUL(X86_CR0_EM_BIT) |
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| 57 | #define X86_CR0_TS_BIT 3 /* Task Switched */ |
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| 58 | #define X86_CR0_TS _BITUL(X86_CR0_TS_BIT) |
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| 59 | #define X86_CR0_ET_BIT 4 /* Extension Type */ |
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| 60 | #define X86_CR0_ET _BITUL(X86_CR0_ET_BIT) |
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| 61 | #define X86_CR0_NE_BIT 5 /* Numeric Error */ |
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| 62 | #define X86_CR0_NE _BITUL(X86_CR0_NE_BIT) |
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| 63 | #define X86_CR0_WP_BIT 16 /* Write Protect */ |
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| 64 | #define X86_CR0_WP _BITUL(X86_CR0_WP_BIT) |
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| 65 | #define X86_CR0_AM_BIT 18 /* Alignment Mask */ |
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| 66 | #define X86_CR0_AM _BITUL(X86_CR0_AM_BIT) |
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| 67 | #define X86_CR0_NW_BIT 29 /* Not Write-through */ |
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| 68 | #define X86_CR0_NW _BITUL(X86_CR0_NW_BIT) |
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| 69 | #define X86_CR0_CD_BIT 30 /* Cache Disable */ |
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| 70 | #define X86_CR0_CD _BITUL(X86_CR0_CD_BIT) |
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| 71 | #define X86_CR0_PG_BIT 31 /* Paging */ |
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| 72 | #define X86_CR0_PG _BITUL(X86_CR0_PG_BIT) |
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| 73 | |
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| 74 | /* |
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| 75 | * Paging options in CR3 |
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| 76 | */ |
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| 77 | #define X86_CR3_PWT_BIT 3 /* Page Write Through */ |
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| 78 | #define X86_CR3_PWT _BITUL(X86_CR3_PWT_BIT) |
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| 79 | #define X86_CR3_PCD_BIT 4 /* Page Cache Disable */ |
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| 80 | #define X86_CR3_PCD _BITUL(X86_CR3_PCD_BIT) |
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| 81 | |
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| 82 | #define X86_CR3_PCID_BITS 12 |
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| 83 | #define X86_CR3_PCID_MASK (_AC((1UL << X86_CR3_PCID_BITS) - 1, UL)) |
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| 84 | |
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| 85 | #define X86_CR3_LAM_U57_BIT 61 /* Activate LAM for userspace, 62:57 bits masked */ |
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| 86 | #define X86_CR3_LAM_U57 _BITULL(X86_CR3_LAM_U57_BIT) |
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| 87 | #define X86_CR3_LAM_U48_BIT 62 /* Activate LAM for userspace, 62:48 bits masked */ |
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| 88 | #define X86_CR3_LAM_U48 _BITULL(X86_CR3_LAM_U48_BIT) |
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| 89 | #define X86_CR3_PCID_NOFLUSH_BIT 63 /* Preserve old PCID */ |
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| 90 | #define X86_CR3_PCID_NOFLUSH _BITULL(X86_CR3_PCID_NOFLUSH_BIT) |
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| 91 | |
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| 92 | /* |
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| 93 | * Intel CPU features in CR4 |
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| 94 | */ |
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| 95 | #define X86_CR4_VME_BIT 0 /* enable vm86 extensions */ |
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| 96 | #define X86_CR4_VME _BITUL(X86_CR4_VME_BIT) |
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| 97 | #define X86_CR4_PVI_BIT 1 /* virtual interrupts flag enable */ |
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| 98 | #define X86_CR4_PVI _BITUL(X86_CR4_PVI_BIT) |
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| 99 | #define X86_CR4_TSD_BIT 2 /* disable time stamp at ipl 3 */ |
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| 100 | #define X86_CR4_TSD _BITUL(X86_CR4_TSD_BIT) |
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| 101 | #define X86_CR4_DE_BIT 3 /* enable debugging extensions */ |
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| 102 | #define X86_CR4_DE _BITUL(X86_CR4_DE_BIT) |
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| 103 | #define X86_CR4_PSE_BIT 4 /* enable page size extensions */ |
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| 104 | #define X86_CR4_PSE _BITUL(X86_CR4_PSE_BIT) |
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| 105 | #define X86_CR4_PAE_BIT 5 /* enable physical address extensions */ |
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| 106 | #define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT) |
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| 107 | #define X86_CR4_MCE_BIT 6 /* Machine check enable */ |
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| 108 | #define X86_CR4_MCE _BITUL(X86_CR4_MCE_BIT) |
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| 109 | #define X86_CR4_PGE_BIT 7 /* enable global pages */ |
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| 110 | #define X86_CR4_PGE _BITUL(X86_CR4_PGE_BIT) |
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| 111 | #define X86_CR4_PCE_BIT 8 /* enable performance counters at ipl 3 */ |
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| 112 | #define X86_CR4_PCE _BITUL(X86_CR4_PCE_BIT) |
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| 113 | #define X86_CR4_OSFXSR_BIT 9 /* enable fast FPU save and restore */ |
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| 114 | #define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT) |
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| 115 | #define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */ |
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| 116 | #define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT) |
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| 117 | #define X86_CR4_UMIP_BIT 11 /* enable UMIP support */ |
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| 118 | #define X86_CR4_UMIP _BITUL(X86_CR4_UMIP_BIT) |
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| 119 | #define X86_CR4_LA57_BIT 12 /* enable 5-level page tables */ |
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| 120 | #define X86_CR4_LA57 _BITUL(X86_CR4_LA57_BIT) |
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| 121 | #define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */ |
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| 122 | #define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT) |
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| 123 | #define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */ |
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| 124 | #define X86_CR4_SMXE _BITUL(X86_CR4_SMXE_BIT) |
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| 125 | #define X86_CR4_FSGSBASE_BIT 16 /* enable RDWRFSGS support */ |
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| 126 | #define X86_CR4_FSGSBASE _BITUL(X86_CR4_FSGSBASE_BIT) |
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| 127 | #define X86_CR4_PCIDE_BIT 17 /* enable PCID support */ |
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| 128 | #define X86_CR4_PCIDE _BITUL(X86_CR4_PCIDE_BIT) |
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| 129 | #define X86_CR4_OSXSAVE_BIT 18 /* enable xsave and xrestore */ |
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| 130 | #define X86_CR4_OSXSAVE _BITUL(X86_CR4_OSXSAVE_BIT) |
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| 131 | #define X86_CR4_SMEP_BIT 20 /* enable SMEP support */ |
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| 132 | #define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT) |
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| 133 | #define X86_CR4_SMAP_BIT 21 /* enable SMAP support */ |
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| 134 | #define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT) |
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| 135 | #define X86_CR4_PKE_BIT 22 /* enable Protection Keys support */ |
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| 136 | #define X86_CR4_PKE _BITUL(X86_CR4_PKE_BIT) |
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| 137 | #define X86_CR4_CET_BIT 23 /* enable Control-flow Enforcement Technology */ |
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| 138 | #define X86_CR4_CET _BITUL(X86_CR4_CET_BIT) |
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| 139 | #define X86_CR4_LAM_SUP_BIT 28 /* LAM for supervisor pointers */ |
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| 140 | #define X86_CR4_LAM_SUP _BITUL(X86_CR4_LAM_SUP_BIT) |
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| 141 | |
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| 142 | #ifdef __x86_64__ |
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| 143 | #define X86_CR4_FRED_BIT 32 /* enable FRED kernel entry */ |
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| 144 | #define X86_CR4_FRED _BITUL(X86_CR4_FRED_BIT) |
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| 145 | #else |
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| 146 | #define X86_CR4_FRED (0) |
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| 147 | #endif |
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| 148 | |
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| 149 | /* |
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| 150 | * x86-64 Task Priority Register, CR8 |
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| 151 | */ |
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| 152 | #define X86_CR8_TPR _AC(0x0000000f,UL) /* task priority register */ |
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| 153 | |
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| 154 | /* |
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| 155 | * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h> |
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| 156 | */ |
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| 157 | |
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| 158 | /* |
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| 159 | * NSC/Cyrix CPU configuration register indexes |
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| 160 | */ |
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| 161 | #define CX86_PCR0 0x20 |
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| 162 | #define CX86_GCR 0xb8 |
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| 163 | #define CX86_CCR0 0xc0 |
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| 164 | #define CX86_CCR1 0xc1 |
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| 165 | #define CX86_CCR2 0xc2 |
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| 166 | #define CX86_CCR3 0xc3 |
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| 167 | #define CX86_CCR4 0xe8 |
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| 168 | #define CX86_CCR5 0xe9 |
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| 169 | #define CX86_CCR6 0xea |
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| 170 | #define CX86_CCR7 0xeb |
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| 171 | #define CX86_PCR1 0xf0 |
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| 172 | #define CX86_DIR0 0xfe |
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| 173 | #define CX86_DIR1 0xff |
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| 174 | #define CX86_ARR_BASE 0xc4 |
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| 175 | #define CX86_RCR_BASE 0xdc |
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| 176 | |
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| 177 | #define CR0_STATE (X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \ |
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| 178 | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \ |
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| 179 | X86_CR0_PG) |
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| 180 | |
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| 181 | #endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */ |
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| 182 | |
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