Invention Grant
US07882321B2 Validity of address ranges used in semi-synchronous memory copy operations
有权
在半同步存储器复制操作中使用的地址范围的有效性
- Patent Title: Validity of address ranges used in semi-synchronous memory copy operations
- Patent Title (中): 在半同步存储器复制操作中使用的地址范围的有效性
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Application No.: US12402904Application Date: 2009-03-12
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Publication No.: US07882321B2Publication Date: 2011-02-01
- Inventor: Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
- Applicant: Ravi K. Arimilli , Rama K. Govindaraju , Peter H. Hochschild , Bruce G. Mealey , Satya P. Sharma , Balaram Sinharoy
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Fleit Gibbons Gutman Bongini & Bianco
- Agent Jon A. Gibbons
- Main IPC: G06F12/02
- IPC: G06F12/02

Abstract:
A system, method, and a computer readable for protecting content of a memory page are disclosed. The method includes determining a start of a semi-synchronous memory copy operation. A range of addresses is determined where the semi-synchronous memory copy operation is being performed. An issued instruction that removes a page table entry is detected. The method further includes determining whether the issued instruction is destined to remove a page table entry associated with at least one address in the range of addresses. In response to the issued instruction being destined to remove the page table entry, the execution of the issued instruction is stalled until the semi-synchronous memory copy operation is completed.
Public/Granted literature
- US20090182968A1 VALIDITY OF ADDRESS RANGES USED IN SEMI-SYNCHRONOUS MEMORY COPY OPERATIONS Public/Granted day:2009-07-16
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