Changes and New Features

Core Features 

3403931

Transitional Virtio-net Support Over vfio

[BlueField3] Introduced a vfio driver over virtio devices to support the legacy interface functionality for the VFs.

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VDPA Features 

3016493

Improve SW Assisted Live Migration Downtime

[ConnectX-6 DX and above] Added a feature that improves the downtime during live migration with qemu and kernel vdpa (mlx5_vdpa).  Downtime is the period when traffic cannot work due to queue reconfiguration and migration. It is improved through the following changes:

• During live migration, allowed re-mapping only of the virtqueue descriptor area instead of the whole VM memory which takes a long time

• Introduced a virtqueue resume option to avoid virtqueue destruction and re-creation cycle which takes a long time

QEMU

xx.39.1002