Safety level specific error response scheme for mixed criticality systems
First Claim
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1. An error response method for a mixed criticality system comprising:
- assigning a safety level to an application executed by a processor, wherein executing the application comprises a transaction between the processor and a resource;
storing the safety level at the resource;
transmitting the safety level and a fault indication from the resource to a Fault Collection and Control Unit (FCCU), the fault indication responsive to a fault from the resource; and
responding by the FCCU to the fault indication with an action determined in part by the safety level.
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Abstract
An error response method for a mixed criticality system includes assigning a safety level to an application executed by a processor. Executing the application includes a transaction between the processor and a resource. The safety level is stored at the resource. The safety level and a fault indication are transmitted from the resource to a fault collection and control unit (FCCU). The fault indication is responsive to a fault from the resource. The FCCU responds to the fault indication with an action determined by the safety level.
9 Citations
20 Claims
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1. An error response method for a mixed criticality system comprising:
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assigning a safety level to an application executed by a processor, wherein executing the application comprises a transaction between the processor and a resource; storing the safety level at the resource; transmitting the safety level and a fault indication from the resource to a Fault Collection and Control Unit (FCCU), the fault indication responsive to a fault from the resource; and responding by the FCCU to the fault indication with an action determined in part by the safety level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A mixed criticality system comprising:
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a processor configured to execute an application having an associated safety level; a resource coupled to the processor by a system bus; a storage device associated with the resource and configured to store the safety level received from the processor; and a Fault Collection and Control Unit (FCCU) coupled to the resource, wherein the FCCU is configured to perform an action determined in part by the safety level in response to a fault from the resource. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An error response method for a mixed criticality system comprising:
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assigning an Automotive Safety Integrity Level (ASIL) to an application executed by a processor, wherein executing the application comprises a transaction between the processor and a resource; transmitting the ASIL and a fault indication, from the resource to a Fault Collection and Control Unit (FCCU) for the application, wherein the fault indication is responsive to a fault from the resource; and responding by the FCCU to the fault indication with an action determined in part by the safety level.
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Specification