Invention Grant
- Patent Title: I/O memory management unit providing self invalidated mapping
- Patent Title (中): I / O内存管理单元提供自动无效映射
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Application No.: US14012261Application Date: 2013-08-28
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Publication No.: US09547603B2Publication Date: 2017-01-17
- Inventor: Arkaprava Basu , Mark D. Hill , Michael M. Swift
- Applicant: Wisconsin Alumni Research Foundation
- Applicant Address: US WI Madison
- Assignee: Wisconsin Alumni Research Foundation
- Current Assignee: Wisconsin Alumni Research Foundation
- Current Assignee Address: US WI Madison
- Agency: Boyle Fredrickson, S.C.
- Main IPC: G06F12/10
- IPC: G06F12/10 ; G06F12/12
Abstract:
A memory management unit for I/O devices uses page table entries to translate virtual addresses to physical addresses. The page table entries include removal rules allowing the I/O memory management unit to delete page table entries without CPU involvement significantly reducing the CPU overhead involved in virtualized I/O data transactions.
Public/Granted literature
- US20150067296A1 I/O MEMORY MANAGEMENT UNIT PROVIDING SELF INVALIDATED MAPPING Public/Granted day:2015-03-05
Information query
