Invention Grant
- Patent Title: Mechanism to prevent software side channels
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Application No.: US15897406Application Date: 2018-02-15
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Publication No.: US10970390B2Publication Date: 2021-04-06
- Inventor: Francis McKeen , Bin Xing , Krystof Zmudzinski , Carlos Rozas , Mona Vij
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Nicholson De Vos Webster & Elliott LLP
- Main IPC: G06F21/55
- IPC: G06F21/55 ; G06F21/53 ; G06F12/14 ; G06F21/74

Abstract:
A processor includes a processing core to identify a code comprising a plurality of instructions to be executed in the architecturally-protected environment, determine that a first physical memory page stored in the architecturally-protected memory matches a first virtual memory page referenced by a first instruction of the plurality of instructions, generate a first address mapping between a first address of the first virtual memory page and a second address of the first physical memory page, store, in the cache memory, the address translation data structure comprising the first address mapping, and execute the code by retrieving the first address mapping in the address translation data structures to be executed in the architecturally-protected environment, determine that a first physical memory page stored in the architecturally-protected memory matches a first virtual memory page referenced by a first instruction of the plurality of instructions, generate a first address mapping between a first address of the first virtual memory page and a second address of the first physical memory page, store, in the cache memory, an address translation data structure comprising the first address mapping, and execute the code by retrieving the first address mapping stored in the address translation data structure.
Public/Granted literature
- US20190251257A1 MECHANISM TO PREVENT SOFTWARE SIDE CHANNELS Public/Granted day:2019-08-15
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