The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2025
Filed:
Apr. 18, 2023
Red Hat, Inc., Raleigh, NC (US);
Michael Tsirkin, Yokneam Illit, IL;
Red Hat, Inc., Raleigh, NC (US);
Abstract
The technology disclosed herein enables receiving, by an operating system running on a host computer system, a request to map a physical address associated with a peripheral device, identifying, based on the request, a mapping type, wherein the mapping type is one of: a first mapping type or a second mapping type, mapping, based on the mapping type of the request, the physical address to a virtual address referencing a memory page having one of: a first page size or a second page size, wherein the second page size exceeds the first page size, and storing a mapping of physical address to the virtual address in an input/output memory management unit (IOMMU) page table associated with the peripheral device.