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    • 3. 发明授权
    • Bios corruption detection system and method
    • 生物腐败检测系统及方法
    • US06715106B1
    • 2004-03-30
    • US09709831
    • 2000-11-10
    • Lois D. Mermelstein
    • Lois D. Mermelstein
    • G06F15177
    • G06F11/1433G06F11/0751G06F11/0793G06F11/2284
    • One embodiment is a method of detecting BIOS corruption that does not require reprogramming of the boot block or calculation of cyclic redundancy (“CRC”) codes. A simple check is performed using only the first byte or bytes of BIOS to be erased (“First Byte”) and the last byte or bytes of BIOS to be programmed (“Last Byte”) during reprogramming. Specifically, if both the First and Last Bytes are programmed, indicating either that erasure did not occur or that reprogramming was successful, the BIOS is not corrupt and no remedial action need be taken. If the First Byte is erased and the Last Byte is programmed, indicating that a failure occurred during erasure, the BIOS is corrupt and remedial action must be taken. Similarly, if the First Byte is programmed and the Last Byte is erased, indicating that a failure occurred during reprogramming, the BIOS is corrupt and remedial action must be taken. Finally, if both the First and Last Bytes are erased, the BIOS is corrupt and remedial action must be taken.
    • 一个实施例是检测不需要重新编程引导块或循环冗余(“CRC”)代码的计算的BIOS损坏的方法。 在重新编程期间,仅使用要擦除的BIOS的第一个字节或字节(“第一个字节”)和要编程的最后一个字节(“最后一个字节”)进行简单的检查。 具体来说,如果第一个和最后一个字节都被编程,指示没有发生擦除或重新编程成功,则BIOS不会损坏,也不需要采取补救措施。 如果第一个字节被擦除并且最后一个字节被编程,指示擦除期间发生故障,则BIOS将被破坏,并且必须采取补救措施。 类似地,如果第一个字节被编程并且最后一个字节被擦除,表明在重新编程期间发生故障,BIOS将被破坏,必须采取补救措施。 最后,如果第一个和最后一个字节都被擦除,则BIOS将被破坏,必须采取补救措施。