arch/x86/include/asm/trap_pf.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_X86_TRAP_PF_H
   3 #define _ASM_X86_TRAP_PF_H
   4
   5 /*
   6  * Page fault error code bits:
   7  *
   8  *   bit 0 ==    0: no page found       1: protection fault
   9  *   bit 1 ==    0: read access         1: write access
  10  *   bit 2 ==    0: kernel-mode access  1: user-mode access
  11  *   bit 3 ==                           1: use of reserved bit detected
  12  *   bit 4 ==                           1: fault was an instruction fetch
  13  *   bit 5 ==                           1: protection keys block access
  14  *   bit 15 ==                          1: SGX MMU page-fault
  15  */
  16 enum x86_pf_error_code {
  17         X86_PF_PROT     =               1 << 0,
  18         X86_PF_WRITE    =               1 << 1,
  19         X86_PF_USER     =               1 << 2,
  20         X86_PF_RSVD     =               1 << 3,
  21         X86_PF_INSTR    =               1 << 4,
  22         X86_PF_PK       =               1 << 5,
  23         X86_PF_SGX      =               1 << 15,
  24 };
  25
  26 #endif /* _ASM_X86_TRAP_PF_H */