Hi,alls
As we know,xen 4+ maintains a dirty bitmap. Snapshot or migration will
use this bitmap. When the guest domain changes the memory page， VMM can
capture it and set dirty bitmap to 1.
But I can't know how VMM to maintain this dirty bitmap. Under what
circumstances VMM will set the dirty page bitmap to 1, and how to track the
page is be dirty?
Thanks！
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