Johannes Berg dd9ada5627 um: virtio: Implement VHOST_USER_PROTOCOL_F_INBAND_NOTIFICATIONS ...

Implement in-band notifications that are necessary for running
vhost-user devices under externally synchronized time-travel
mode (which is in a follow-up patch). This feature makes what
usually should be eventfd notifications in-band messages.

We'll prefer this feature, under the assumption that only a
few (simulation) devices will ever support it, since it's not
very efficient.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

2020-03-29 23:29:00 +02:00

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