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[Xen-devel] Fix VGA logdirty related display freezes with altp2m


This series aims to prevent the display from freezing when
enabling altp2m and switching to a new view (and assorted problems
when resizing the display).

The first patch propagates ept.ad changes to all active altp2ms,
and the second one allocates a new logdirty rangeset for each
new altp2m, and propagates (under lock) changes to all p2ms.

The first patch is the same as:
[PATCH V4] x86/altp2m: propagate ept.ad changes to all active altp2ms
but as it is now required for the second one to apply cleanly, it
has been resent as part of this series.

[PATCH 1/2] x86/altp2m: propagate ept.ad changes to all active altp2ms
[PATCH 2/2] x86/altp2m: fix display frozen when switching to a new


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