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Explore an alternative memory architecture in this 29-minute conference talk by Joao Martins from Oracle. Delve into the direct map, security vulnerabilities, and potential improvements for hypervisors. Learn about dev/mem and mem=NNN, the Device DAX Interface, and its implementation without struct page. Discover example usage scenarios and use cases for pageless/secret memory in KVM. Examine the advantages of this approach, and understand the relationship between ASI, Pageless Memory, Huge Pages, and reduced struct pages.
