On 03/12/2013 04:44 PM, Takuya Yoshikawa wrote:
> This will be used not to zap unrelated mmu pages when creating/moving
> a memory slot later.

How about save all mmio spte into a mmio-rmap?

The good things are:
- instead walking all shadow page, we can only walk the rmap
- Comparing to zap a shadow page, it does not need to flush TLB after
  zapping mmio sptes

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