Invention Grant
- Patent Title: Switching memory consistency models in accordance with execution privilege level
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Application No.: US17850916Application Date: 2022-06-27
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Publication No.: US12086456B2Publication Date: 2024-09-10
- Inventor: Michael Tsirkin
- Applicant: Red Hat, Inc.
- Applicant Address: US NC Raleigh
- Assignee: Red Hat, Inc.
- Current Assignee: Red Hat, Inc.
- Current Assignee Address: US NC Raleigh
- Agency: Dority & Manning, P.A.
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F3/06
Abstract:
An example method may include executing one or more first instructions that cause the processing device to enter a privileged execution mode, switching a memory consistency model of the processing device to a strong instruction ordering mode, and executing one or more second instructions in the privileged execution mode, where the one or more second instructions are executed using the strong instruction ordering mode. The method may further include executing one or more third instructions that cause the processing device to exit the privileged execution mode, and, responsive to executing the one or more third instructions, switching the memory consistency model of the processing device to a relaxed instruction ordering mode.
Public/Granted literature
- US20230418509A1 SWITCHING MEMORY CONSISTENCY MODELS IN ACCORDANCE WITH EXECUTION PRIVILEGE LEVEL Public/Granted day:2023-12-28
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