arch/x86/include/asm/kvmclock.h

File Facts

System

Linux kernel

Corpus path

arch/x86/include/asm/kvmclock.h

Extension

.h

Size

477 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/x86

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

• linux/percpu.h

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_X86_KVM_CLOCK_H
#define _ASM_X86_KVM_CLOCK_H

#include <linux/percpu.h>

DECLARE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);

static __always_inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
{
	return &this_cpu_read(hv_clock_per_cpu)->pvti;
}

static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
{
	return this_cpu_read(hv_clock_per_cpu);
}

#endif /* _ASM_X86_KVM_CLOCK_H */

Annotation

• Immediate include surface: `linux/percpu.h`.
• Atlas domain: Architecture Layer / arch/x86.
• 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.