arch/powerpc/kernel/firmware.c

File Facts

System

Linux kernel

Corpus path

arch/powerpc/kernel/firmware.c

Extension

.c

Size

1043 bytes

Lines

44

Domain

Architecture Layer

Bucket

arch/powerpc

Inferred role

Architecture Layer: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/export.h
• linux/cache.h
• linux/of.h
• asm/firmware.h
• asm/kvm_guest.h

Detected Declarations

• function check_kvm_guest
• module init check_kvm_guest
• export powerpc_firmware_features
• export kvm_guest

Annotated Snippet

core_initcall(check_kvm_guest); // before kvm_guest_init()
#endif

Annotation

• Immediate include surface: `linux/export.h`, `linux/cache.h`, `linux/of.h`, `asm/firmware.h`, `asm/kvm_guest.h`.
• Detected declarations: `function check_kvm_guest`, `module init check_kvm_guest`, `export powerpc_firmware_features`, `export kvm_guest`.
• Atlas domain: Architecture Layer / arch/powerpc.
• Implementation status: integration 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.