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ʱ䣺2019-06-07 07:12 Դδ֪ ༭admin

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SMMIntel386SL֮x86ϵṹһCPUִģʽϵͳģʽֻͨϵͳжϣSystem Management Interrupt, SMI룬ִֻͨRSMָƳSMMģʽԲϵͳ͸仰˵ϵͳ֪ϵͳʱSMMģʽҲ޷֪SMMģʽִйΪʵSMMIntelCPUһSMI# PinΪߵƽʱCPUģʽSMMģʽһбΣежϡSMMģʽµִеij򱻳SMMеSMMֻڳϵͳڴ棨System Management RAM,SMRAMĿռСͨSMBASEļĴSMRAMĿռ䡣SMMֻϵͳ̼ʵ֡

SMMִлʵģʽ뱣ģʽͬSMMģʽϵͳûзҳֶ֧֡ϵͳȫִȻ¡֮CPUѰַ4GBĿռ䣬û߼ַַ𡣻˵еĵַַSMM¿ִһȨָһڴ汣ʧЧ

SMMΨһͨSMIҲϵͳжϣSystem Management InterruptSMIΨһǽǰSMI PinϼһƽƽϵͳchipsetݲִͬлijЩ¼ijЩ豸Ҫر񣩼ӵCPUȥġ

˳SMMķҲֻһǾִRSMָCPUָ˳SMMԶĽCPUóɽSMM֮ǰִģʽ

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SMMڽ֮ǰCPUԼĽǰȫĴԼκҪϢĺͲȫ棩֮ǰSMRAMijطȻֱתSMRAMڵijһڵַʼִС˳ʱCPUָȱϢȻ󷵻жϵĵطִг򡣹ʶжϵij޷֪SMMж˵İԵڽеI/OSMIôCPUҲͣI/OתSMMSMMṩһֶΣ̽ǷһI/O Trap״̬

SMM¶λSMRAM֮ҲÿνSMMִеڵַ᲻һʹøSMMִб쳣ѡһЩĥܵijԱ͸SMMfeature˸Ȥ֣ơ

SMMǿ󣬿˵IA32ܹڵϰԱãô΢ΪԼ棬һֱIntelԼCPUڷôһ⡣Intel涨SMMֻϵͳ̼ʹáϵͳиSMM Lock Registerһó״̬ôκγ򶼲ܽԼóSMMˡ̼ÿϵͳ֮ǰSMM

Core΢ܹ128λSSEԪDz128λC...

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