How does Kernel protect Mode Bits (PSW) from being modified by User Program?

如何保护内核模式位(PSW)被用户修改的程序？

youdao

It USES the static mode of creating objects in a policy database to protect them.

它使用在策略数据库中创建对象的静态模式来保护它们。

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Putting satellites in 'safe mode' and disconnecting transformers could protect them from damaging electrical surges.

将卫星调到“安全模式”，并断开与变压器的链接，会保护他们不收电磁脉冲的伤害。

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The operators of those science missions can choose to put their spacecraft into a "safe mode" to protect the electronics in onboard instruments from being tripped.

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