arch/microblaze/kernel/head.S

File Facts

System

Linux kernel

Corpus path

arch/microblaze/kernel/head.S

Extension

.S

Size

10758 bytes

Lines

371

Domain

Architecture Layer

Bucket

arch/microblaze

Inferred role

Architecture Layer: arch/microblaze

Status

atlas-only

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/init.h
• linux/linkage.h
• asm/thread_info.h
• asm/page.h
• linux/of_fdt.h
• asm/setup.h
• asm/mmu.h
• asm/processor.h

Detected Declarations

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

Annotated Snippet

ori	r17, r0, start_kernel
	ori	r4, r0, MSR_KERNEL_VMS
	mts	rmsr, r4
	nop
	rted	r17, 0		/* enable MMU and jump to start_kernel */
	nop

Annotation

• Immediate include surface: `linux/init.h`, `linux/linkage.h`, `asm/thread_info.h`, `asm/page.h`, `linux/of_fdt.h`, `asm/setup.h`, `asm/mmu.h`, `asm/processor.h`.
• Atlas domain: Architecture Layer / arch/microblaze.
• Implementation status: atlas-only.

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.