drivers/virt/nitro_enclaves/ne_pci_dev.c

File Facts

System

Linux kernel

Corpus path

drivers/virt/nitro_enclaves/ne_pci_dev.c

Extension

.c

Size

15795 bytes

Lines

627

Domain

Driver Families

Bucket

drivers/virt

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/delay.h
• linux/device.h
• linux/list.h
• linux/module.h
• linux/mutex.h
• linux/nitro_enclaves.h
• linux/pci.h
• linux/types.h
• linux/wait.h
• ne_misc_dev.h
• ne_pci_dev.h

Detected Declarations

• function ne_submit_request
• function ne_retrieve_reply
• function ne_wait_for_reply
• function ne_do_request
• function ne_reply_handler
• function ne_event_work_handler
• function enclave
• function ne_event_handler
• function ne_setup_msix
• function ne_teardown_msix
• function ne_pci_dev_enable
• function ne_pci_dev_disable
• function ne_pci_probe
• function ne_pci_remove
• function ne_pci_shutdown

Annotated Snippet

struct pci_driver ne_pci_driver = {
	.name		= "nitro_enclaves",
	.id_table	= ne_pci_ids,
	.probe		= ne_pci_probe,
	.remove		= ne_pci_remove,
	.shutdown	= ne_pci_shutdown,
};

Annotation

• Immediate include surface: `linux/delay.h`, `linux/device.h`, `linux/list.h`, `linux/module.h`, `linux/mutex.h`, `linux/nitro_enclaves.h`, `linux/pci.h`, `linux/types.h`.
• Detected declarations: `function ne_submit_request`, `function ne_retrieve_reply`, `function ne_wait_for_reply`, `function ne_do_request`, `function ne_reply_handler`, `function ne_event_work_handler`, `function enclave`, `function ne_event_handler`, `function ne_setup_msix`, `function ne_teardown_msix`.
• Atlas domain: Driver Families / drivers/virt.
• Implementation status: pattern implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.