arch/x86/mm/pf_in.h

File Facts

System

Linux kernel

Corpus path

arch/x86/mm/pf_in.h

Extension

.h

Size

708 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/x86

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• enum reason_type

Annotated Snippet

#ifndef __PF_H_
#define __PF_H_

enum reason_type {
	NOT_ME,	/* page fault is not in regions */
	NOTHING,	/* access others point in regions */
	REG_READ,	/* read from addr to reg */
	REG_WRITE,	/* write from reg to addr */
	IMM_WRITE,	/* write from imm to addr */
	OTHERS	/* Other instructions can not intercept */
};

enum reason_type get_ins_type(unsigned long ins_addr);
unsigned int get_ins_mem_width(unsigned long ins_addr);
unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs);
unsigned long get_ins_imm_val(unsigned long ins_addr);

#endif /* __PF_H_ */

Annotation

• Detected declarations: `enum reason_type`.
• Atlas domain: Architecture Layer / arch/x86.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.