[Xen-devel] [VTD][PATCH] Don't allow assigning the same device twice without release the first assignment

["Han, Weidong" <weidong.han@xxxxxxxxx>]

System will hang, if assign the same device to domains twice without
release the first assignment. This patch checks whether the device
already has been assigned or not before creating domain, if yes, display
prompt message and won't create the domain. 

Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>

assign-twice.patch
Description: assign-twice.patch

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