Re: [PATCH] ppc64: 64K pages support

From: Paul Mackerras
Date: Wed Nov 02 2005 - 22:25:31 EST


Benjamin Herrenschmidt writes:

> It took a while, but finally, here is the 64K pages support patch for
> ppc64. This patch adds a new CONFIG_PPC_64K_PAGES which, when enabled,
> changes the kernel base page size to 64K. The resulting kernel still
> boots on any hardware. On current machines with 4K pages support only,
> the kernel will maintain 16 "subpages" for each 64K page
> transparently.
>
> Note that while real 64K capable HW has been tested, the current patch
> will not enable it yet as such hardware is not released yet, and I'm
> still verifying with the firmware architects the proper to get the
> information from the newer hypervisors.
>
> Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>

Acked-by: Paul Mackerras <paulus@xxxxxxxxx>
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