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Bit 31 in the page fault-error bit will be set when processor encounters an RMP violation. While at it, use the BIT() macro. Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Signed-off-by: Michael Roth <michael.roth@amd.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Acked-by: Dave Hansen <dave.hansen@intel.com> Link: https://lore.kernel.org/r/20240126041126.1927228-9-michael.roth@amd.com
32 lines
881 B
C
32 lines
881 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_TRAP_PF_H
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#define _ASM_X86_TRAP_PF_H
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#include <linux/bits.h>
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/*
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* Page fault error code bits:
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*
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* bit 0 == 0: no page found 1: protection fault
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* bit 1 == 0: read access 1: write access
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* bit 2 == 0: kernel-mode access 1: user-mode access
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* bit 3 == 1: use of reserved bit detected
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* bit 4 == 1: fault was an instruction fetch
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* bit 5 == 1: protection keys block access
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* bit 6 == 1: shadow stack access fault
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* bit 15 == 1: SGX MMU page-fault
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* bit 31 == 1: fault was due to RMP violation
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*/
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enum x86_pf_error_code {
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X86_PF_PROT = BIT(0),
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X86_PF_WRITE = BIT(1),
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X86_PF_USER = BIT(2),
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X86_PF_RSVD = BIT(3),
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X86_PF_INSTR = BIT(4),
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X86_PF_PK = BIT(5),
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X86_PF_SHSTK = BIT(6),
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X86_PF_SGX = BIT(15),
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X86_PF_RMP = BIT(31),
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};
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#endif /* _ASM_X86_TRAP_PF_H */
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