How to trace every memory access

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Hi Paolo,

Currently I can trap every first write/read to a memory page from
guest VM (add codes in tdp_page_fault). If I want to trace every
memory access to a page, how can I achieve such goal in KVM?

Thanks,
Arthur

-- 
Arthur Chunqi Li
Department of Computer Science
School of EECS
Peking University
Beijing, China
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