[Xen-devel][PATCH] avoid the EPT table scanning errors occurs when splitting the large page during live migration

["Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx>]

Since Xen did not lock the p2m table for p2m table reading, when splitting the 
large page during live migration, we should make sure the path of EPT entries 
be modified are always there while other CPUs may access the super entries at 
the same time.

Signed-off-by: Xin, Xiaohui <xiaohui.xin@xxxxxxxxx>

Attachment: logdirty-2.diff
Description: logdirty-2.diff

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