DEVICE FOR MONITORING AND CONTROLLING ACCESSES TO BIOS FROM THE CPU Russian patent published in 2021 - IPC G06F21/57 

FIELD: computer technology.

SUBSTANCE: invention relates to the field of computer technology. The device for monitoring and controlling accesses to the BIOS from the central processor (CPU) includes an independent access control module, an independent storage module of the boot BIOS, a security microprocessor, non-volatile flash memory, a power monitoring device, a device power supply, an alert module. In this case, the device is installed via the SPI interface between the central processor and the BIOS storage of the monitored device. The operation of the independent access control module is controlled by a security microprocessor, which sets the parameters of the operation of the independent access control module. The device stores information about each CPU access to the BIOS in a log in the non-volatile flash memory of the independent access control module. The security microprocessor determines the data in the BIOS storage that is critical for the safe operation of the system, which cannot be changed.

EFFECT: increase in system security, monitoring and control of BIOS modification.

1 cl, 1 dwg