arch/powerpc/include/asm/mem_encrypt.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/mem_encrypt.h

Extension

.h

Size

497 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/powerpc

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

• asm/svm.h
• linux/types.h

Detected Declarations

• struct device
• function force_dma_unencrypted

Annotated Snippet

#ifndef _ASM_POWERPC_MEM_ENCRYPT_H
#define _ASM_POWERPC_MEM_ENCRYPT_H

#include <asm/svm.h>
#include <linux/types.h>

struct device;

static inline bool force_dma_unencrypted(struct device *dev)
{
	return is_secure_guest();
}

int set_memory_encrypted(unsigned long addr, int numpages);
int set_memory_decrypted(unsigned long addr, int numpages);

#endif /* _ASM_POWERPC_MEM_ENCRYPT_H */

Annotation

• Immediate include surface: `asm/svm.h`, `linux/types.h`.
• Detected declarations: `struct device`, `function force_dma_unencrypted`.
• Atlas domain: Architecture Layer / arch/powerpc.
• 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.