Documentation/ABI/testing/debugfs-hisi-migration
Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/debugfs-hisi-migration
File Facts
- System
- Linux kernel
- Corpus path
Documentation/ABI/testing/debugfs-hisi-migration- Extension
[no extension]- Size
- 1082 bytes
- Lines
- 26
- 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/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data
Date: Jan 2025
KernelVersion: 6.13
Contact: Longfang Liu <liulongfang@huawei.com>
Description: Read the configuration data and some status data
required for device live migration. These data include device
status data, queue configuration data, some task configuration
data and device attribute data. The output format of the data
is defined by the live migration driver.
What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/migf_data
Date: Jan 2025
KernelVersion: 6.13
Contact: Longfang Liu <liulongfang@huawei.com>
Description: Read the data from the last completed live migration.
This data includes the same device status data as in "dev_data".
The migf_data is the dev_data that is migrated.
What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state
Date: Jan 2025
KernelVersion: 6.13
Contact: Longfang Liu <liulongfang@huawei.com>
Description: Used to obtain the device command sending and receiving
channel status. Returns failure or success logs based on the
results.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.