arch/powerpc/configs/security.config

File Facts

System

Linux kernel

Corpus path

arch/powerpc/configs/security.config

Extension

.config

Size

521 bytes

Lines

18

Domain

Architecture Layer

Bucket

arch/powerpc

Inferred role

Architecture Layer: arch/powerpc

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

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

# Help: Common security options for PowerPC builds

# This is the equivalent of booting with lockdown=integrity
CONFIG_SECURITY=y
CONFIG_SECURITYFS=y
CONFIG_SECURITY_LOCKDOWN_LSM=y
CONFIG_SECURITY_LOCKDOWN_LSM_EARLY=y
CONFIG_LOCK_DOWN_KERNEL_FORCE_INTEGRITY=y

# These are some general, reasonably inexpensive hardening options
CONFIG_HARDENED_USERCOPY=y
CONFIG_FORTIFY_SOURCE=y
CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y

# UBSAN bounds checking is very cheap and good for hardening
CONFIG_UBSAN=y
# CONFIG_UBSAN_MISC is not set

Annotation

• Atlas domain: Architecture Layer / arch/powerpc.
• 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.