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