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news: Document the role attribute for shmem device

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Signed-off-by: Wang Xin <wangxinxin.wang@huawei.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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Wang Xin 2020-08-21 16:53:00 +08:00 committed by Michal Privoznik
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@ -25,6 +25,11 @@ v6.7.0 (unreleased)
the ``device_model_args`` setting in xl.cfg(5). The libvirt xen driver now
supports this using ``<xen:commandline/>`` XML extensions.
* shmem: Add support for shmem-{plain, doorbell} ``role`` option
The ``role`` attribute controls how the domain behaves on migration. With
``role=master``, the guest will copy the shared memory on migration to
the destination host. With ``role=peer``, the migration is disabled.
* **Improvements**