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由 Michael S. Tsirkin 提交于
Avoid use of static variables: PC systems initialize pvpanic device through pvpanic_init, so we can simply create the fw_cfg file at that point. This also makes it possible to skip device creation completely if fw_cfg is not there, e.g. for xen - so the ports it reserves are not discoverable by guests. Also, make pvpanic_init void since callers ignore return status anyway. Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
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