[virtio-dev] [PATCH 0/5] virtio: introduce SUSPEND bit and vq state

Zhu Lingshan
2023-09-06T08:17:06Z

This series introduces
1)a new SUSPEND bit in the device status
Which is used to suspend the device, so that the device states
and virtqueue states are stabilized.

2)virtqueue state and its accessor, to get and set last_avail_idx
and last_used_idx of virtqueues.

The main usecase of these new facilities is Live Migration.

Future work: dirty page tracking and in-flight descriptors.

This series addresses many comments from Jason, Stefan and Eugenio
from RFC series.

Zhu Lingshan (5):
virtio: introduce vq state as basic facility
virtio: introduce SUSPEND bit in device status
virtqueue: constraints for virtqueue state
virtqueue: ignore resetting vqs when SUSPEND
virtio-pci: implement VIRTIO_F_QUEUE_STATE

content.tex | 118 ++++++++++++++++++++++++++++++++++++++++++++++
transport-pci.tex | 18 +++++++
2 files changed, 136 insertions(+)

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2.35.3