arch/x86/include/asm/setup_data.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/setup_data.h

Extension

.h

Size

565 bytes

Lines

33

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

• uapi/asm/setup_data.h

Detected Declarations

• struct pci_setup_rom
• struct efi_setup_data

Annotated Snippet

struct pci_setup_rom {
	struct setup_data data;
	uint16_t vendor;
	uint16_t devid;
	uint64_t pcilen;
	unsigned long segment;
	unsigned long bus;
	unsigned long device;
	unsigned long function;
	uint8_t romdata[];
};

/* kexec external ABI */
struct efi_setup_data {
	u64 fw_vendor;
	u64 __unused;
	u64 tables;
	u64 smbios;
	u64 reserved[8];
};

#endif /* __ASSEMBLER__ */

#endif /* _ASM_X86_SETUP_DATA_H */

Annotation

• Immediate include surface: `uapi/asm/setup_data.h`.
• Detected declarations: `struct pci_setup_rom`, `struct efi_setup_data`.
• 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.