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 | |