Re: [Provisional Page Table] Why the linear address ranges startingboth from 0 and PAGE_OFFSET are mapped to the same physical address range inthe provisional page table?

From: zhihua che
Date: Sat Dec 03 2011 - 00:46:17 EST

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Here is another relating question. Why the provisional page table is
stored at initial_page_table while final page table is store at
swapper_pg_dir, I think only one page directory table is enough,
because the two page table are not effective in the same time, it's
enough to construct the provisional page table at swapper_pg_dir, then
clear it and construct the final page table. And I find that in the
previous linux kernel, only swapper_pg_dir is present.
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