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[Xen-devel] [PATCH 0 of 5] v2: Nested-p2m cleanups and locking changes

This patch series tidies up a few bits ofthe nested p2m code.
The main thing it does is reorganize the locking so that most of the
changes to nested p2m tables happen only under the p2m lock, and the
nestedp2m lock is only needed to reassign p2m tables to new cr3 values.

Changes since v1:

 - a few minor fixes
 - more sensible flushing policy in p2m_get_nestedp2m()
 - smoke-tested this time!


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