The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Mar. 28, 2022
Intel Corporation, Santa Clara, CA (US);
Sriram Ranganathan, Bangalore, IN;
Pannerkumar Rajagopal, Bangalore, IN;
Saravanakumar Ulaganathan, Bangalore, IN;
Siddhartha Selvaraj, Coimbatore, IN;
Radhakrishna Pai, Bangalore, IN;
Intel Corporation, Santa Clara, CA (US);
Abstract
The disclosure generally relates method, system and apparatus to prevent denial of service (DOS) attacks on PCIe based computing devices. In an exemplary embodiment, an independent register is used in combination with a filter driver and additional logic to form an integrity check for power down instructions. An exemplary system includes a register circuitry corresponding to the IP device, the register circuitry having a designated storage bit to indicate an unlocked state of the register; a filter driver to receive a first power state transition request when the IP device is idle after a predetermined period, the power state transition request defining a timeout period; a controller to change the power state of the IP device to the unlock state; a decision logic to receive and authenticate a second power state transition request in response to validation of register circuitry being unlocked.