include/asm/trap_pf.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _ASM_X86_TRAP_PF_H
0003 #define _ASM_X86_TRAP_PF_H
0004
0005 /*
0006  * Page fault error code bits:
0007  *
0008  *   bit 0 ==    0: no page found   1: protection fault
0009  *   bit 1 ==    0: read access     1: write access
0010  *   bit 2 ==    0: kernel-mode access  1: user-mode access
0011  *   bit 3 ==               1: use of reserved bit detected
0012  *   bit 4 ==               1: fault was an instruction fetch
0013  *   bit 5 ==               1: protection keys block access
0014  *   bit 15 ==              1: SGX MMU page-fault
0015  */
0016 enum x86_pf_error_code {
0017     X86_PF_PROT =       1 << 0,
0018     X86_PF_WRITE    =       1 << 1,
0019     X86_PF_USER =       1 << 2,
0020     X86_PF_RSVD =       1 << 3,
0021     X86_PF_INSTR    =       1 << 4,
0022     X86_PF_PK   =       1 << 5,
0023     X86_PF_SGX  =       1 << 15,
0024 };
0025
0026 #endif /* _ASM_X86_TRAP_PF_H */