公开(公告)号：US20210110041A1

公开(公告)日：2021-04-15

申请号：US16603283

申请日：2017-04-24

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Christopher H Stewart ,  Baraneedharan Anbazhagan ,  Lan Wang

IPC: G06F21/57 ,  G06F8/654 ,  H04L9/32 ,  H04L9/08

Abstract: The update progress of a basic input/output system (BIOS) is displayed on a display screen. A first chipset lock is applied to a first region of a shared serial peripheral interface (SPI) chip of the BIOS of a computer system containing a first program of instructions. A system management memory mode lock is applied to a second and a third region of the shared SPI chip containing a second and third programs of instructions respectively. The second program of instructions is updated, and control of the BIOS is transferred to the updated second program of instructions. The updated second program of instructions updates the first program of instructions. The BIOS update progress visual is displayed on the display screen of the computer system while updating the first program of instructions.

公开(公告)号：US10268822B2

公开(公告)日：2019-04-23

申请号：US15516490

申请日：2014-12-01

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Christopher H Stewart ,  Venkatesh Yarraguntla ,  Dallas M Barlow

IPC: G06F21/57 ,  G06F9/4401 ,  G06F11/36 ,  G06F21/44

Abstract: According to one example for verifying firmware module execution privilege, a firmware is booted on a processor. At least one firmware module in the firmware marked as a test module is identified, and verification with a production public key of metadata associated with the firmware is attempted. In an example, in the event that the metadata verifies successfully with the production public key, the firmware boot is halted when the processor determines that access to a video interface is available, and a user is alerted that a test module has attempted execution in a production firmware.