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