Reclaiming existing fields in address translation data structures to extend control over memory accesses
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United States of America Patent
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Jul 4, 2006
Grant Date -
Jun 17, 2004
app pub date -
Dec 12, 2002
filing date -
Dec 12, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In one embodiment, when it is determined that a modification of content of an active address translation data structure is required, an entry in the active address translation data structure is modified to conform to a corresponding entry in a guest address translation data structure. During the modification, a bit field including one or more access control indicators in the entry of the active address translation data structure is not overwritten with corresponding data from the guest address translation data structure.
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