1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_TRAP_PF_H 3 #define _ASM_X86_TRAP_PF_H 4 5 #include <linux/bits.h> 6 7 /* 8 * Page fault error code bits: 9 * 10 * bit 0 == 0: no page found 1: protection fault 11 * bit 1 == 0: read access 1: write access 12 * bit 2 == 0: kernel-mode access 1: user-mode access 13 * bit 3 == 1: use of reserved bit detected 14 * bit 4 == 1: fault was an instruction fetch 15 * bit 5 == 1: protection keys block access 16 * bit 6 == 1: shadow stack access fault 17 * bit 15 == 1: SGX MMU page-fault 18 * bit 31 == 1: fault was due to RMP violation 19 */ 20 enum x86_pf_error_code { 21 X86_PF_PROT = BIT(0), 22 X86_PF_WRITE = BIT(1), 23 X86_PF_USER = BIT(2), 24 X86_PF_RSVD = BIT(3), 25 X86_PF_INSTR = BIT(4), 26 X86_PF_PK = BIT(5), 27 X86_PF_SHSTK = BIT(6), 28 X86_PF_SGX = BIT(15), 29 X86_PF_RMP = BIT(31), 30 }; 31 32 #endif /* _ASM_X86_TRAP_PF_H */ 33