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
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