Invention Grant
- Patent Title: Safety hypervisor function
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Application No.: US15784528Application Date: 2017-10-16
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Publication No.: US10592270B2Publication Date: 2020-03-17
- Inventor: Simon Brewerton , Glenn Farrall , Neil Hastie , Frank Hellwig , Richard Knight , Antonio Vilela
- Applicant: Infineon Technologies AG
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Potashnik, LLC
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F9/455 ; G06F21/71 ; G06F21/85 ; G06F9/30 ; G06F13/28 ; G06F11/00

Abstract:
The disclosure relates to systems and methods for defining a processor safety privilege level for controlling a distributed memory access protection system. More specifically, a safety hypervisor function for accessing a bus in a computer processing system includes a module, such as a Computer Processing Unit (CPU) or a Direct Memory Access (DMA) for accessing a system memory and a memory unit for storing a safety code, such as a Processor Status Word (PSW) or a configuration register (DMA (REG)). The module allocates the safety code to a processing transaction and the safety code is visible upon access of the bus by the module.
Public/Granted literature
- US20180039508A1 SAFETY HYPERVISOR FUNCTION Public/Granted day:2018-02-08
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