| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef _ASM_X86_TRAP_PF_H |
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| 3 | #define _ASM_X86_TRAP_PF_H |
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| 4 | |
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| 5 | /* |
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| 6 | * Page fault error code bits: |
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| 7 | * |
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| 8 | * bit 0 == 0: no page found 1: protection fault |
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| 9 | * bit 1 == 0: read access 1: write access |
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| 10 | * bit 2 == 0: kernel-mode access 1: user-mode access |
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| 11 | * bit 3 == 1: use of reserved bit detected |
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| 12 | * bit 4 == 1: fault was an instruction fetch |
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| 13 | * bit 5 == 1: protection keys block access |
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| 14 | * bit 6 == 1: shadow stack access fault |
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| 15 | * bit 15 == 1: SGX MMU page-fault |
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| 16 | */ |
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| 17 | enum x86_pf_error_code { |
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| 18 | X86_PF_PROT = 1 << 0, |
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| 19 | X86_PF_WRITE = 1 << 1, |
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| 20 | X86_PF_USER = 1 << 2, |
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| 21 | X86_PF_RSVD = 1 << 3, |
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| 22 | X86_PF_INSTR = 1 << 4, |
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| 23 | X86_PF_PK = 1 << 5, |
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| 24 | X86_PF_SHSTK = 1 << 6, |
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| 25 | X86_PF_SGX = 1 << 15, |
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| 26 | }; |
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| 27 | |
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| 28 | #endif /* _ASM_X86_TRAP_PF_H */ |
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| 29 | |
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