{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9772962","patent":{"patent_number":"US-9772962","title":"Memory sharing for direct memory access by a device assigned to a guest operating system","assignee":null,"inventors":[],"filing_date":"2015-05-28T00:00:00.000Z","publication_date":"2017-09-26T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F"],"num_claims":20,"abstract":"A guest operating system (OS) detects a direct memory access (DMA) write request for a device assigned to a guest OS to perform a DMA write to a page of memory and, prior to a write access of to the page, sets a DMA write state of a guest physical address for the requested page of memory to indicate that a DMA write operation is in progress for the requested page. The guest OS causes a virtual central processing unit (CPU) to attempt to write to the requested page of memory and sends the DMA write request to the device to cause the device to write to the requested page of memory."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Memory sharing for direct memory access by a device assigned to a guest operating system","description":"A guest operating system (OS) detects a direct memory access (DMA) write request for a device assigned to a guest OS to perform a DMA write to a page of memory and, prior to a write access of to the p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9772962","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-9772962","citation_suggestion":"Patentable. \"Memory sharing for direct memory access by a device assigned to a guest operating system\" (US-9772962). https://patentable.app/patents/US-9772962","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9772962","json":"https://patentable.app/api/llm-context/US-9772962","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:05:01.060Z"}