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migration: Add yank feature

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Register yank functions on sockets to shut them down.

Signed-off-by: Lukas Straub <lukasstraub2@web.de>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <484c6a14cc2506bebedd5a237259b91363ff8f88.1609167865.git.lukasstraub2@web.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
This commit is contained in:
Lukas Straub 2020-12-28 16:08:52 +01:00 • committed by Markus Armbruster
parent 8ee4480692
commit b5eea99ec2
5 changed files with 57 additions and 0 deletions
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5
migration/savevm.c
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@ -62,6 +62,7 @@
#include "migration/colo.h"
#include "qemu/bitmap.h"
#include "net/announce.h"
#include "qemu/yank.h"
const unsigned int postcopy_ram_discard_version;
@ -3006,6 +3007,10 @@ int load_snapshot(const char *name, Error **errp)
qemu_system_reset(SHUTDOWN_CAUSE_NONE);
mis->from_src_file = f;
if (!yank_register_instance(MIGRATION_YANK_INSTANCE, errp)) {
ret = -EINVAL;
goto err_drain;
}
aio_context_acquire(aio_context);
ret = qemu_loadvm_state(f);
migration_incoming_state_destroy();