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Security Manager Features

A security management and security technology, applied in program control design, electronic digital data processing, instruments, etc., can solve problems such as software dependencies and large system bottlenecks

Active Publication Date: 2018-12-18
INFINEON TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such software is very hardware platform dependent and creates large system bottlenecks as the number of software tasks increases

Method used

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Examples

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Embodiment Construction

[0019] In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustrations specific embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural or other changes may be made without departing from the scope of the present disclosure. Accordingly, the following detailed description is not to be taken in a limiting sense, and the scope of the present disclosure is defined by the appended claims.

[0020] figure 1 is an example schematic diagram of hardware and software enabled security hypervisor functionality 100 in accordance with one embodiment of the present disclosure. The present disclosure provides a distributed memory access protection system controlled by new processor security privilege levels. Security hypervisor function 100 includes CPU 102, local program memory 104, local data memory 106, processor bus 10...

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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 (DMY) 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.

Description

[0001] References to related applications [0002] This application claims priority to US Application No. 61 / 942,801, filed February 21, 2014. technical field [0003] The present disclosure relates to methods and systems for security functions for microcontrollers. More specifically, the present disclosure relates to methods and systems for defining processor security privilege levels for controlling distributed memory access protection systems. Background technique [0004] Modern automotive electronic control units (ECUs) continue to integrate an increasing number of functions. This trend is driven on the one hand by the expansion of technologies enabling high levels of integration, and by the high cost-driven nature of the automotive industry which drives down the total number of ECUs per vehicle. Electronics are playing an increasingly important role in providing advanced driver assistance functions and especially in preventing hazards that will reduce the number of f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/52G06F21/71
CPCG06F9/45558G06F13/28G06F21/71G06F21/85G06F2009/45583G06F2009/45587G06F9/30043
Inventor S.布鲁尔顿G.A.法拉尔N.S.哈斯蒂F.黑尔维希R.奈特A.维莱拉
Owner INFINEON TECH AG