Intel® Arria® 10 Hard Processor System Technical Reference Manual

ID 683711
Date 1/10/2023
Public

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8.2.2. Secure Transaction Protection

The system interconnect provides two levels of secure transaction protection:

  • Security firewalls—Enforce secure read and write transactions.
  • Privilege filter—Leverages the firewall mechanism and provides additional security by filtering the privilege level of L4 slave transactions. The privilege filter applies to writes only.

All slaves on the SoC are placed behind a security firewall. A subset of slaves are also placed behind a privilege filter. Transactions to these slaves must pass both a security firewall and the privilege filter to reach the slave.