include/xen/interface/hvm/ioreq.h

File Facts

System

Linux kernel

Corpus path

include/xen/interface/hvm/ioreq.h

Extension

.h

Size

1524 bytes

Lines

52

Domain

Repository Root And Misc

Bucket

include

Inferred role

Repository Root And Misc: implementation source

Status

source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

• Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

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

Detected Declarations

• struct ioreq

Annotated Snippet

struct ioreq {
	uint64_t addr;          /* physical address */
	uint64_t data;          /* data (or paddr of data) */
	uint32_t count;         /* for rep prefixes */
	uint32_t size;          /* size in bytes */
	uint32_t vp_eport;      /* evtchn for notifications to/from device model */
	uint16_t _pad0;
	uint8_t state:4;
	uint8_t data_is_ptr:1;  /* if 1, data above is the guest paddr
				 * of the real data to use. */
	uint8_t dir:1;          /* 1=read, 0=write */
	uint8_t df:1;
	uint8_t _pad1:1;
	uint8_t type;           /* I/O type */
};

#endif /* __XEN_PUBLIC_HVM_IOREQ_H__ */

Annotation

• Detected declarations: `struct ioreq`.
• Atlas domain: Repository Root And Misc / include.
• 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.