公开(公告)号：US20200159929A1

公开(公告)日：2020-05-21

申请号：US16478986

申请日：2017-08-08

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.

Inventor： Christopher H Stewart ,  Baraneedharan Anbazhagen ,  Lan Wang ,  Stanley Hyojun Park ,  Vali Ali ,  Wei Ze Liu ,  Mark A Piwonka

IPC: G06F21/57 ,  G06F21/60 ,  G06F9/4401 ,  G06F8/654

Abstract: Examples associated with basic input/output system (BIOS) up-dates are described. One example method includes system management mode locking a first pre-extensible firmware interface initialization (PEI) region and a driver execution environment (DXE) region of a shared serial peripheral (SPI) chip of a BIOS of a computer. A second PEI region of the shared SPI chip is chipset locked. A record in a system management random access memory associated with a video option read only memory (ROM) is created. The video option ROM is loaded. The first PEI region is updated, and periodic graphical updates regarding the progress of updating the first PEI region are provided using the video option ROM.