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block: allow specifying name of block device for vmstate storage

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Currently the vmstate will be stored in the first block device that
supports snapshots. Historically this would have usually been the
root device, but with UEFI it might be the variable store. There
needs to be a way to override the choice of block device to store
the state in.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210204124834.774401-6-berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2021-02-04 12:48:27 +00:00 • committed by Dr. David Alan Gilbert
parent cf3a74c94f
commit c22d644ca7
6 changed files with 35 additions and 14 deletions
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2
replay/replay-debugging.c
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@ -148,7 +148,7 @@ static char *replay_find_nearest_snapshot(int64_t icount,
*snapshot_icount = -1;
bs = bdrv_all_find_vmstate_bs(false, NULL, NULL);
bs = bdrv_all_find_vmstate_bs(NULL, false, NULL, NULL);
if (!bs) {
goto fail;
}