/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TRAP_PF_H
#define _ASM_X86_TRAP_PF_H

#include <linux/bits.h>

/*
 * Page fault error code bits:
 *
 *   bit 0 ==    0: no page found       1: protection fault
 *   bit 1 ==    0: read access         1: write access
 *   bit 2 ==    0: kernel-mode access  1: user-mode access
 *   bit 3 ==                           1: use of reserved bit detected
 *   bit 4 ==                           1: fault was an instruction fetch
 *   bit 5 ==                           1: protection keys block access
 *   bit 6 ==                           1: shadow stack access fault
 *   bit 15 ==                          1: SGX MMU page-fault
 *   bit 31 ==                          1: fault was due to RMP violation
 */
enum x86_pf_error_code {
        X86_PF_PROT     =               BIT(0),
        X86_PF_WRITE    =               BIT(1),
        X86_PF_USER     =               BIT(2),
        X86_PF_RSVD     =               BIT(3),
        X86_PF_INSTR    =               BIT(4),
        X86_PF_PK       =               BIT(5),
        X86_PF_SHSTK    =               BIT(6),
        X86_PF_SGX      =               BIT(15),
        X86_PF_RMP      =               BIT(31),
};

#endif /* _ASM_X86_TRAP_PF_H */