Re: i386 subarchitectures: boot page table flags

[James Bottomley]

On Tue, 2006-05-30 at 18:57 -0700, H. Peter Anvin wrote:
> Does any of the i386 subarchitectures actually care about the Accessed and Dirty bits in 
> the bootup pagetables (the ones that start at pg0, used before the mm is initialized?)  If 
> not, I'd like to speed up booting by setting those bits at initialization time.

Depends what you mean by "care".  I do hijack pg0 in
voyager_memory_detect() to access the clickmap for ascertaining the
memory layout, but I don't use the accessed or dirty bits.

James


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