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Firmware interface with backup non-volatile memory storage

  • US 9,703,346 B2
  • Filed: 06/23/2014
  • Issued: 07/11/2017
  • Est. Priority Date: 06/23/2014
  • Status: Active Grant
First Claim
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1. A system to provide durable storage for a firmware interface, said system comprising:

  • a processor to host said firmware interface, said firmware interface to control access to system variables in a protected region of a volatile memory;

    a power management circuit to provide power to said processor and further to provide a power loss indicator to said firmware interface;

    a reserve energy storage module to provide power to said processor in response to said power loss indicator; and

    said firmware interface is further to copy said system variables from said volatile memory to a non-volatile memory in response to said power loss indicator.

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