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pgtbl #1

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Innocentzsy opened this issue Nov 6, 2020 · 2 comments
Open

pgtbl #1

Innocentzsy opened this issue Nov 6, 2020 · 2 comments

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@Innocentzsy
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老哥，你pgtbl第三部分，为什么不需要把srcva虚拟地址转成物理地址啊。
@PKUFlyingPig
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Owner

xv6的内核虚拟地址是直接映射的，你可以参考一下xv6的手册，上面有详细的说明。

@hqqkun
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hqqkun commented Mar 14, 2021

为什么不能释放叶子物理页面，进程退出了，这些页面就没用了呀。

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@Innocentzsy @hqqkun @PKUFlyingPig