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由 John Snow 提交于
A simple helper that asserts a given port is not busy processing any commands via the TFD, Command Issue and SACT registers. Signed-off-by: NJohn Snow <jsnow@redhat.com> Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com> Message-id: 1423158090-25580-8-git-send-email-jsnow@redhat.com Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>
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