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由 Fam Zheng 提交于
This allows us to pass error information to caller. Reviewed-by: NAndreas Färber <afaerber@suse.de> Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com> Signed-off-by: NFam Zheng <famz@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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