drivers/virt/coco/guest/report.c

File Facts

System

Linux kernel

Corpus path

drivers/virt/coco/guest/report.c

Extension

.c

Size

14136 bytes

Lines

540

Domain

Driver Families

Bucket

drivers/virt

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• 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/tsm.h
• linux/err.h
• linux/slab.h
• linux/rwsem.h
• linux/string.h
• linux/module.h
• linux/cleanup.h
• linux/configfs.h

Detected Declarations

• struct tsm_report_state
• enum tsm_data_select
• function try_advance_write_generation
• function tsm_report_privlevel_store
• function tsm_report_privlevel_floor_show
• function tsm_report_service_provider_store
• function tsm_report_service_guid_store
• function tsm_report_service_manifest_version_store
• function tsm_report_inblob_write
• function tsm_report_generation_show
• function tsm_report_provider_show
• function __read_report
• function read_cached_report
• function tsm_report_read
• function tsm_report_outblob_read
• function tsm_report_auxblob_read
• function tsm_report_manifestblob_read
• function tsm_report_item_release
• function tsm_report_is_visible
• function tsm_report_is_bin_visible
• function tsm_report_drop_item
• function tsm_report_register
• function tsm_report_unregister
• function tsm_report_init
• function tsm_report_exit
• module init tsm_report_init
• export tsm_report_register
• export tsm_report_unregister

Annotated Snippet

module_init(tsm_report_init);

static void __exit tsm_report_exit(void)
{
	configfs_unregister_default_group(tsm_report_group);
	configfs_unregister_subsystem(&tsm_configfs);
}
module_exit(tsm_report_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Provide Trusted Security Module attestation reports via configfs");

Annotation

• Immediate include surface: `linux/tsm.h`, `linux/err.h`, `linux/slab.h`, `linux/rwsem.h`, `linux/string.h`, `linux/module.h`, `linux/cleanup.h`, `linux/configfs.h`.
• Detected declarations: `struct tsm_report_state`, `enum tsm_data_select`, `function try_advance_write_generation`, `function tsm_report_privlevel_store`, `function tsm_report_privlevel_floor_show`, `function tsm_report_service_provider_store`, `function tsm_report_service_guid_store`, `function tsm_report_service_manifest_version_store`, `function tsm_report_inblob_write`, `function tsm_report_generation_show`.
• Atlas domain: Driver Families / drivers/virt.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.