Invention Grant
- Patent Title: Virtualized instruction extensions for system partitioning
- Patent Title (中): 用于系统分区的虚拟化指令扩展
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Application No.: US13460287Application Date: 2012-04-30
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Publication No.: US09229884B2Publication Date: 2016-01-05
- Inventor: Bryan D. Marietta , Gary L. Whisenhunt , Kumar K. Gala , David B. Kramer
- Applicant: Bryan D. Marietta , Gary L. Whisenhunt , Kumar K. Gala , David B. Kramer
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Terrile, Cannatti, Chambers & Holland, LLP
- Agent Michael Rocco Cannatti
- Main IPC: G06F13/24
- IPC: G06F13/24 ; G06F13/14
Abstract:
A method and circuit for a data processing system provide virtualized instructions for accessing a partitioned device (e.g., 14, 61) by executing a control instruction (47, 48) to encode and store an access command (CMD) in a data payload with a hardware-inserted partition attribute (LPID) for storage to a command register (25) at a physical address (PA) retrieved from a special purpose register (46) so that the partitioned device (14, 61) can determine if the access command can be performed based on local access control information.
Public/Granted literature
- US20130290585A1 Virtualized Instruction Extensions for System Partitioning Public/Granted day:2013-10-31
Information query
