{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9747052","patent":{"patent_number":"US-9747052","title":"Virtualisation supporting guest operating systems using memory protection units to determine permission of a memory access operation for a physical address","assignee":null,"inventors":[],"filing_date":"2013-02-05T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":19,"abstract":"A processor is provided with a first memory protection unit applying a first set of permissions and a second memory protection unit applying a second set of permissions. A memory access will only be permitted if both the first set of permissions and the second set of permissions are satisfied. The processor also includes a memory management unit which serves to translate from virtual addresses VA to physical addresses PA. A selectable one of the first memory protection unit and the memory management unit is active at any given time under control of a selection bit set by a hypervisor program executing at an exception level with higher privilege than the exception level at which the guest operating systems execute."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Virtualisation supporting guest operating systems using memory protection units to determine permission of a memory access operation for a physical address","description":"A processor is provided with a first memory protection unit applying a first set of permissions and a second memory protection unit applying a second set of permissions. A memory access will only be p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9747052","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9747052","citation_suggestion":"Patentable. \"Virtualisation supporting guest operating systems using memory protection units to determine permission of a memory access operation for a physical address\" (US-9747052). https://patentable.app/patents/US-9747052","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9747052","json":"https://patentable.app/api/llm-context/US-9747052","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:19:27.717Z"}