Firmware variable update method

摘要

A firmware variable update method for BIOS of a computer system is provided. The firmware variable update method includes writing an update capsule file and a firmware update command into a memory according to a first system management interrupt signal and performing a shutdown process, triggering a second system management interrupt signal and accordingly writing a variable update command into the memory, switching the computer system into a sleep state before the shutdown process is completed and activating a timer, performing a first reboot process when the timer expires, utilizing the update capsule file to update an original capsule file of the BIOS according to the firmware update command during the first reboot process, and performing a second reboot process and utilizing an update variable file to update an original variable file of the BIOS according to the variable update command during the second reboot process.

主权项

1. A firmware variable update method, for a Basic Input/Output System (BIOS) of a computer system, comprising:
writing an update capsule file and a firmware update command into a memory according to a first system management interrupt signal and starting to perform a shutdown process, wherein the firmware update command is utilized for indicating performing a capsule file updating process and the shutdown process includes switching the computer system into an off state; triggering a second system management interrupt signal and accordingly writing a variable update command into the memory, wherein the variable update command is utilized for indicating performing a firmware variable updating process; switching the computer system into a sleep state before the shutdown process is completed and activating a timer; performing a first reboot process when the timer expires; utilizing the update capsule file to update an original capsule file of the BIOS according to the firmware update command during the first reboot process; and performing a second reboot process and utilizing an update variable file to update an original variable file of the BIOS according to the variable update command during the second reboot process.