Re: [PATCH V3 02/16] migration: cpr-state

[Peter Xu]

On Fri, Nov 01, 2024 at 06:47:41AM -0700, Steve Sistare wrote:
> CPR must save state that is needed after QEMU is restarted, when devices
> are realized.  Thus the extra state cannot be saved in the migration stream,
> as objects must already exist before that stream can be loaded.  Instead,
> define auxilliary state structures and vmstate descriptions, not associated
> with any registered object, and serialize the aux state to a cpr-specific
> stream in cpr_state_save.  Deserialize in cpr_state_load after QEMU
> restarts, before devices are realized.
> 
> Provide accessors for clients to register file descriptors for saving.
> The mechanism for passing the fd's to the new process will be specific
> to each migration mode, and added in subsequent patches.
> 
> Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
> Reviewed-by: Fabiano Rosas <farosas@suse.de>

Reviewed-by: Peter Xu <peterx@redhat.com>

-- 
Peter Xu