NVIDIA / k8s-driver-manager / 19655516443

6%

main: 6%

Build Type

Pull #128

github

Committed by cdesiniotis

Commit Message

Update vfio-manage to choose best VFIO driver when binding devices

Rather than always binding GPUs to the vfio-pci driver, this commit
introduces logic to see if the running kernel has a VFIO variant
driver available that is a better match for the device.

We read the mod.alias file for a given device, then we look through
/lib/modules/${kernel_version}/modules.alias for the vfio_pci alias
that matches with the least number of wildcard ('*') fields.

The code introduced in this commit is inspired by:

https://gitlab.com/libvirt/libvirt/-/commit/82e2fac29

Signed-off-by: Christopher Desiniotis <cdesiniotis@nvidia.com>

Pull Request Pull Request #128: Update vfio-manage to choose best VFIO driver

Run Details

90 of 221 new or added lines in 4 files covered. (40.72%)

3 existing lines in 1 file now uncovered.

90 of 1303 relevant lines covered (6.91%)

0.07 hits per line