公开(公告)号：US11023220B2

公开(公告)日：2021-06-01

申请号：US16584138

申请日：2019-09-26

Applicant: DELL PRODUCTS L.P.

Inventor： Balasingh P. Samuel ,  Zhaohui Yu ,  Bibby Yeh

IPC: G06F8/65 ,  G06F21/57 ,  G06F9/4401

Abstract: 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.

公开(公告)号：US12045326B2

公开(公告)日：2024-07-23

申请号：US17864724

申请日：2022-07-14

Applicant: Dell Products L.P.

Inventor： Sumanth Vidyadhara ,  Karunakar Poosapalli ,  Bibby Yeh

IPC: G06F21/31 ,  G06F21/54 ,  G06F21/57

CPC classification number: G06F21/31 ,  G06F21/54 ,  G06F21/572

Abstract: 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.

公开(公告)号：US20210096838A1

公开(公告)日：2021-04-01

申请号：US16584138

申请日：2019-09-26

Applicant: DELL PRODUCTS L.P.

Inventor： Balasingh P. Samuel ,  Zhaohui Yu ,  Bibby Yeh

IPC: G06F8/65 ,  G06F21/57 ,  G06F9/451

Abstract: 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.