Re: [Lse-tech] Re: 10.31 second kernel compile

Richard Henderson (
Tue, 26 Mar 2002 17:07:43 -0800

On Sat, Mar 16, 2002 at 11:16:16AM -0800, Linus Torvalds wrote:
> But alpha does a "pseudo-hardware" fill of page tables, ie as far as the
> OS is concerned you might as well consider it hardware. And that is
> actually limited to 8kB pages

Actually, it can be frobbed up to 64k with a pal call. Not that
we've ever arranged for the alpha backend to allow for a page size
not equal to 8k...

> The upcoming hammer stuff from AMD is also 64-bit, and apparently a
> four-level page table, each with 512 entries and 4kB pages.

And FWIW, ev6 also has an option to do 4 level page tables.

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