arch/arm64/include/asm/boot.h

File Facts

System

Linux kernel

Corpus path

arch/arm64/include/asm/boot.h

Extension

.h

Size

369 bytes

Lines

21

Domain

Architecture Layer

Bucket

arch/arm64

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.

Dependency Surface

• linux/sizes.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __ASM_BOOT_H
#define __ASM_BOOT_H

#include <linux/sizes.h>

/*
 * arm64 requires the DTB to be 8 byte aligned and
 * not exceed 2MB in size.
 */
#define MIN_FDT_ALIGN		8
#define MAX_FDT_SIZE		SZ_2M

/*
 * arm64 requires the kernel image to placed at a 2 MB aligned base address
 */
#define MIN_KIMG_ALIGN		SZ_2M

#endif

Annotation

• Immediate include surface: `linux/sizes.h`.
• Atlas domain: Architecture Layer / arch/arm64.
• 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.