arch/s390/include/uapi/asm/virtio-ccw.h

File Facts

System

Linux kernel

Corpus path

arch/s390/include/uapi/asm/virtio-ccw.h

Extension

.h

Size

444 bytes

Lines

19

Domain

Architecture Layer

Bucket

arch/s390

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

• 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

#ifndef __KVM_VIRTIO_CCW_H
#define __KVM_VIRTIO_CCW_H

/* Alignment of vring buffers. */
#define KVM_VIRTIO_CCW_RING_ALIGN 4096

/* Subcode for diagnose 500 (virtio hypercall). */
#define KVM_S390_VIRTIO_CCW_NOTIFY 3

#endif

Annotation

• Atlas domain: Architecture Layer / arch/s390.
• 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.