tools/testing/selftests/vfio/scripts/lib.sh

File Facts

System

Linux kernel

Corpus path

tools/testing/selftests/vfio/scripts/lib.sh

Extension

.sh

Size

964 bytes

Lines

43

Domain

Support Tooling And Documentation

Bucket

tools

Inferred role

Support Tooling And Documentation: tools

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

• function write_to
• function bind
• function set_driver_override

Annotated Snippet

function write_to() {
	# Unfortunately set -x does not show redirects so use echo to manually
	# tell the user what commands are being run.
	echo "+ echo \"${2}\" > ${1}"
	echo "${2}" > ${1}
}

function get_driver() {
	if [ -L /sys/bus/pci/devices/${1}/driver ]; then
		basename $(readlink -m /sys/bus/pci/devices/${1}/driver)
	fi
}

function bind() {
	write_to /sys/bus/pci/drivers/${2}/bind ${1}
}

function unbind() {
	write_to /sys/bus/pci/drivers/${2}/unbind ${1}
}

function set_sriov_numvfs() {
	write_to /sys/bus/pci/devices/${1}/sriov_numvfs ${2}
}

function get_sriov_numvfs() {
	if [ -f /sys/bus/pci/devices/${1}/sriov_numvfs ]; then
		cat /sys/bus/pci/devices/${1}/sriov_numvfs
	fi
}

function set_driver_override() {
	write_to /sys/bus/pci/devices/${1}/driver_override ${2}
}

function clear_driver_override() {
	set_driver_override ${1} ""
}

Annotation

• Detected declarations: `function write_to`, `function bind`, `function set_driver_override`.
• Atlas domain: Support Tooling And Documentation / tools.
• 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.