Intel Xe Driver Preparing SR-IOV Provisioning For vGPU Profiles

The Intel Xe driver is currently preparing for Single Root I/O Virtualization (SR-IOV) provisioning support for virtual GPU (vGPU) profiles. A significant development has been pushed in the form of five patches, which have split the Provisioning Mode Change and bulk Priority Provisioning into static helpers. These helpers require the master mutex to be held, ensuring that mode changes, Virtual Function (VF) auto-provisioning, and VF unprovisioning occur while the master mutex is in place.

This series of updates sets the stage for the upcoming vGPU profile support. Previously, the provisioning mode would change, followed by PF and VF provisioning, all while the master mutex was held. However, with these new changes, the provisioning mode change and VF auto-provisioning, as well as VF unprovisioning, will now be executed under the master mutex. This modification eliminates the risk of provisioning mode alterations between the mode check and the actual (un)provisioning process.

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