arch/sparc/include/asm/hvtramp.h

File Facts

System

Linux kernel

Corpus path

arch/sparc/include/asm/hvtramp.h

Extension

.h

Size

782 bytes

Lines

39

Domain

Architecture Layer

Bucket

arch/sparc

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/types.h

Detected Declarations

• struct hvtramp_mapping
• struct hvtramp_descr

Annotated Snippet

struct hvtramp_mapping {
	__u64		vaddr;
	__u64		tte;
};

struct hvtramp_descr {
	__u32			cpu;
	__u32			num_mappings;
	__u64			fault_info_va;
	__u64			fault_info_pa;
	__u64			thread_reg;
	struct hvtramp_mapping	maps[];
};

void hv_cpu_startup(unsigned long hvdescr_pa);

#endif

#define HVTRAMP_DESCR_CPU		0x00
#define HVTRAMP_DESCR_NUM_MAPPINGS	0x04
#define HVTRAMP_DESCR_FAULT_INFO_VA	0x08
#define HVTRAMP_DESCR_FAULT_INFO_PA	0x10
#define HVTRAMP_DESCR_THREAD_REG	0x18
#define HVTRAMP_DESCR_MAPS		0x20

#define HVTRAMP_MAPPING_VADDR		0x00
#define HVTRAMP_MAPPING_TTE		0x08
#define HVTRAMP_MAPPING_SIZE		0x10

#endif /* _SPARC64_HVTRAP_H */

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct hvtramp_mapping`, `struct hvtramp_descr`.
• Atlas domain: Architecture Layer / arch/sparc.
• 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.