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[Xen-devel] Questions about page table updating

Hi, everyone
            I am newbie here. And now I am trying to understand about
Xen's memory management.
            When a Guest VM try to modify its page table. How does Xen
handle that?
            In PV it seems like Guest VM will use a hypercall
do_update_va_mapping or do_mmu_update. What's the difference?
            How about HVM
            Thanks for answering.


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