Hi all:
Recently i am looking at the code of the implementation of
shadow page table of kvm. There is one thing that i am confused. Is
there implementation for caching the shadow page table during context
switch? From the code, when there is action of setting cr3 in the
guest os, it will call new_cr3 which will free the mmu roots. When
entering the guest again, because the root pages are invalid page now,
it will load mmu and allocate roots again. So for every context
switch, the shadow page table will be re-constructed. Is that right?
Thanks
--
Zhongshu
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