Dell Products Inc.

Bibby Yeh

Sumanth Vidyadhara

Balasingh Ponraj Samuel

Karunakar Poosapalli

Zhaohui Yu

A disclosed method installs an I/O trap protocol to provide an authentication callback function for handling I/O trap events. I/O trap events may include write operations accessing any of one or more identified I/O addresses. An I/O trap event may be registered with the authentication callback function for each of one or more identified I/O addresses. Original values of data may be stored in a memory resource. Any occurrences of an I/O trap event triggers the authentication callback function to perform I/O trap operations. The I/O trap operations may include determining whether the I/O trap event is associated with an approved driver and, if not, restoring data stored at the identified I/O address to an original value. Installing the I/O trap protocol may include installing the I/O trap protocol during a system management mode (SMM) phase of a UEFI boot sequence.

Secured communication protocol layer for authenticated hardware data access

A system for sequencing firmware updates comprising a sequenced payload creation system operating on a processor and configured to receive two or more firmware payload sets and to generate a payload sequence for the two or more firmware payload sets. A BIOS payload system operating on the processor and configured to receive the two or more firmware payload sets and the payload sequence and to generate a basic input/output system (BIOS) payload. A BIOS locking system operating on the processor and configured to receive the BIOS payload and to generate a secure BIOS executable.

Growing community of inventors

Taoyuan, Taiwan

Bibby Yeh