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bhyve/snapshot: provide a way to send other messages/data to bhyve

Description

bhyve/snapshot: provide a way to send other messages/data to bhyve

This is a step towards sending messages (other than suspend/checkpoint)
from bhyvectl to bhyve.

Introduce a new struct, ipc_message - this struct stores the type of
message and a union containing message specific structures for the type
of message being sent.

Reviewed by: grehan
Differential Revision: https://reviews.freebsd.org/D30221

Details

Provenance
rewAuthored on Mar 3 2021, 6:05 AM
Reviewer
grehan
Differential Revision
D29213: bhyve/snapshot: provide a way to send other messages/data to bhyve
Parents
rG6de3cf14c47d: vn_open_cred(): disallow O_CREAT | O_EMPTY_PATH
Branches
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