arch/s390/include/asm/nmi.h

File Facts

System

Linux kernel

Corpus path

arch/s390/include/asm/nmi.h

Extension

.h

Size

3599 bytes

Lines

109

Domain

Architecture Layer

Bucket

arch/s390

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

• linux/bits.h
• linux/types.h

Detected Declarations

• struct mcesa
• struct pt_regs

Annotated Snippet

struct mcesa {
	u8 vector_save_area[1024];
	u8 guarded_storage_save_area[32];
};

struct pt_regs;

void nmi_alloc_mcesa_early(u64 *mcesad);
int nmi_alloc_mcesa(u64 *mcesad);
void nmi_free_mcesa(u64 *mcesad);

void s390_handle_mcck(void);
void s390_do_machine_check(struct pt_regs *regs);

#endif /* __ASSEMBLER__ */
#endif /* _ASM_S390_NMI_H */

Annotation

• Immediate include surface: `linux/bits.h`, `linux/types.h`.
• Detected declarations: `struct mcesa`, `struct pt_regs`.
• Atlas domain: Architecture Layer / arch/s390.
• 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.