qemu fully supported on runtime-rs

[lifupan]

Which feature do you think can be improved?

We should make sure the qemu is fully supported for runtime-rs, such as device hotplug and so on.

Specify the feature you think could be made better.

How can it be improved?

Describe how specifically you think it could be improved.

Additional Information

Anything else to add?

Before raising this enhancement request

Have you looked at the limitations document?

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