Invention Grant
US08261267B2 Virtual machine monitor having mapping data generator for mapping virtual page of the virtual memory to a physical memory
失效
具有用于将虚拟存储器的虚拟页面映射到物理存储器的映射数据生成器的虚拟机监视器
- Patent Title: Virtual machine monitor having mapping data generator for mapping virtual page of the virtual memory to a physical memory
- Patent Title (中): 具有用于将虚拟存储器的虚拟页面映射到物理存储器的映射数据生成器的虚拟机监视器
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Application No.: US12501892Application Date: 2009-07-13
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Publication No.: US08261267B2Publication Date: 2012-09-04
- Inventor: Noboru Iwamatsu , Naoki Nishiguchi
- Applicant: Noboru Iwamatsu , Naoki Nishiguchi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2008-192965 20080728
- Main IPC: G06F9/46
- IPC: G06F9/46 ; G06F12/08
Abstract:
A mapping data generator determines a virtual page number of a virtual page where an executable code in an object file is mapped. A virtual page manager manages a virtual page record containing the virtual page number, a first object ID corresponding to the virtual page number, and a detection flag indicative of existence of another virtual page record containing a second object ID identical with the first object ID. A machine page manager manages a machine page record containing the first object ID, and a machine page number to which the virtual page number is mapped. A sharable page detector determines whether a detection flag indicates existence of another virtual page record containing the first object ID and determines whether a machine page number has been set. A page mapper maps a set machine page number to the virtual page number of the access page.
Public/Granted literature
- US20100023941A1 VIRTUAL MACHINE MONITOR Public/Granted day:2010-01-28
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