在 2021/3/25 下午3:15, Cindy Lu 写道:
+enum virtio_config_status {
+ VIRTIO_CONFIG_SUPPORT,
+ VIRTIO_CONFIG_WORK,
+ VIRTIO_CONFIG_STOP,
+ VIRTIO_CONFIG_STATUS_UNKNOWN,
Any reason for this extra state? I think we can know whether the config
interrupt is being used through a
Thanks
The problem is I need to split the backend devices into 3 types,
1） normal device
2）vdpa support config interrupt. and the configur interrupt is active now
3）vdpa not support config interrupt.
So I add this bit and this bit will init in vpda /vhost modules and
qemu can check this bit to know the which behariver we will do in
virtio bus and other modules,
I wonder whether it's a must. We can setup guest notifiers
unconditionally, so if it's an vhost bakcend without config interrupt
support, such notifiers won't be used.
Thanks
Maybe I need to change this bit's name
to make it more clearly
Thanks
Cindy
