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作为一个写操作系统的人,什么时候用虚拟地址?什么时候用物理地址? #4

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misakar opened this issue Dec 17, 2016 · 1 comment

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misakar commented Dec 17, 2016

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misakar commented Dec 21, 2016

开启分页后, 写操作系统需要用虚拟地址, 因为这些地址上CPU会被页部件转换.
但是操作系统还需要分配物理地址, 做虚拟地址和物理地址映射的时候，当然用物理地址.

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