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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TRAP_PF_H
#define _ASM_X86_TRAP_PF_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
*/
enum x86_pf_error_code {
X86_PF_PROT = 1 << 0,
X86_PF_WRITE = 1 << 1,
X86_PF_USER = 1 << 2,
X86_PF_RSVD = 1 << 3,
X86_PF_INSTR = 1 << 4,
X86_PF_PK = 1 << 5,
X86_PF_SHSTK = 1 << 6,
X86_PF_SGX = 1 << 15,
};
#endif /* _ASM_X86_TRAP_PF_H */