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Hi, In
the function _sh_propagate, the A&D bits of all the shadow page tables entries
above level 1 will be set. (// Set the A&D bits for higher level shadows). I
am very confused about it. From Intel manual, the Dirty bit above level 1 is
reserved and must be set 0. Am I right? If yes, how does the shadow page table
deal with this problem? Another
question. In Xen’s current version, does it use the Dirty bit to do
something? zhujun |
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