Interaction method and system for BIOS/UEFI and virtual machine monitor

Abstract

The invention is suitable for the technical field of computers, and provides an interaction method and system for BIOS / UEFI and a virtual machine monitor. The method comprises the steps: controlling BIOS / UEFI to call the corresponding initial code of the virtual machine monitor in a read-only memory when the system is powered on; decompressing and loading the corresponding initial code of the virtual machine monitor to a fixed preset address of a memory to make the virtual machine monitor take over the computer control right, and executing remote call; controlling BIOS / UEFI to detect the state of a hard disc, and calling the virtual machine monitor to carry out user partition management on the hard disc or deploy the hard disc based on the detection result; and controlling to reassign the computer control right from the virtual machine monitor to the BIOS / UEFI, and executing the normal initialization operation of the computer system and loading a user operation system to achieve the operation of the BIOS / UEFI in the virtual machine monitor. Therefore, the method overcomes the disadvantage of expensive hard-encryption of the hard disc, and can monitor any access to the hard disc.

Description

technical field [0001] The invention belongs to the technical field of computers, and in particular relates to a method and system for interacting between BIOS / UEFI and a virtual machine monitor. Background technique [0002] With the increase of computer penetration, information security is very important, especially when multiple users use a computer, it is necessary to protect each user's information and data in different levels. Hard disk multi-user means that one hard disk of the same computer is divided into different user partitions. Each user partition can be used independently and time-sharing, and the data in each user partition is isolated from each other and cannot be accessed by each other. [0003] The existing hard disk needs to restart the computer when multiple users are created, which is inconvenient to operate, and there are problems such as the limitation of the capacity of the safe hard disk and the expensive cost of the hard disk hard encryption scheme....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a method for interacting between BIOS / UEFI and a virtual machine monitor, which aims to solve the problem of the need to restart the computer when creating multiple users of the existing hard disk, which is inconvenient to operate, and there is an expensive hard disk encryption scheme Problems of cost, low safety factor of data storage, low level of terminal authentication and no way of auditing

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