Documentation/ABI/testing/sysfs-devices-faux-tdx-host
Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-devices-faux-tdx-host
File Facts
- System
- Linux kernel
- Corpus path
Documentation/ABI/testing/sysfs-devices-faux-tdx-host- Extension
[no extension]- Size
- 1139 bytes
- Lines
- 27
- Domain
- Support Tooling And Documentation
- Bucket
- Documentation
- Inferred role
- Support Tooling And Documentation: Documentation
- Status
- atlas-only
Why This File Exists
Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
What: /sys/devices/faux/tdx_host/version
Contact: linux-coco@lists.linux.dev
Description: (RO) Report the version of the loaded TDX module.
Formatted as "major.minor.update". Used by TDX module
update tooling. Example: "1.2.03".
What: /sys/devices/faux/tdx_host/seamldr_version
Contact: linux-coco@lists.linux.dev
Description: (RO) Report the version of the loaded P-SEAMLDR.
Formatted as a TDX module version. Used by TDX module
update tooling.
What: /sys/devices/faux/tdx_host/num_remaining_updates
Contact: linux-coco@lists.linux.dev
Description: (RO) Report the number of remaining updates. TDX maintains a
log about each TDX module that has been loaded. This log has
a finite size, which limits the number of TDX module updates
that can be performed.
After each successful update, the number reduces by one. Once it
reaches zero, further updates will fail until next reboot. The
number is always zero if the P-SEAMLDR doesn't support updates.
See Intel Trust Domain Extensions - SEAM Loader (SEAMLDR)
Interface Specification, Chapter "SEAMLDR_INFO" and Chapter
"SEAMLDR.INSTALL" for more information.Annotation
- Atlas domain: Support Tooling And Documentation / Documentation.
- Implementation status: atlas-only.
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.