Invention Grant
- Patent Title: Memory paging for processors using physical addresses
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Application No.: US14598371Application Date: 2015-01-16
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Publication No.: US09678872B2Publication Date: 2017-06-13
- Inventor: John Fernando
- Applicant: Oracle International Corporation
- Applicant Address: US CA Redwood Shores
- Assignee: Oracle International Corporation
- Current Assignee: Oracle International Corporation
- Current Assignee Address: US CA Redwood Shores
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Erik A. Heter
- Main IPC: G06F12/08
- IPC: G06F12/08 ; G06F12/0811 ; G11C11/406 ; G06F12/1009 ; G06F12/123 ; G06F12/084

Abstract:
A method and apparatus for memory paging is disclosed. A system includes a plurality of processor cores each configured to initiate requests to a memory by providing a physical address without a virtual address. A first cache subsystem is shared by each of a first subset of the plurality of processor cores. Responsive to receiving a memory access request from a processor core of the first subset, the first cache subsystem determines if a physical address of the request is in a first paged region of memory with respect to the first subset. If the physical address is in the paged region, the cache subsystem is configured to access a set of page attributes for a page corresponding to the physical address from a page attribute table responsive that is shared by each of the first subset of the plurality of processor cores.
Public/Granted literature
- US20160210243A1 Memory Paging for Processors using Physical Addresses Public/Granted day:2016-07-21
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