arch/x86/include/asm/intel_ds.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/intel_ds.h

Extension

.h

Size

1232 bytes

Lines

48

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

• linux/percpu-defs.h

Detected Declarations

• struct debug_store
• struct debug_store_buffers

Annotated Snippet

struct debug_store {
	u64	bts_buffer_base;
	u64	bts_index;
	u64	bts_absolute_maximum;
	u64	bts_interrupt_threshold;
	u64	pebs_buffer_base;
	u64	pebs_index;
	u64	pebs_absolute_maximum;
	u64	pebs_interrupt_threshold;
	u64	pebs_event_reset[MAX_PEBS_EVENTS + MAX_FIXED_PEBS_EVENTS];
} __aligned(PAGE_SIZE);

DECLARE_PER_CPU_PAGE_ALIGNED(struct debug_store, cpu_debug_store);

struct debug_store_buffers {
	char	bts_buffer[BTS_BUFFER_SIZE];
	char	pebs_buffer[PEBS_BUFFER_SIZE];
};

#endif

Annotation

• Immediate include surface: `linux/percpu-defs.h`.
• Detected declarations: `struct debug_store`, `struct debug_store_buffers`.
• 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.