Re: [PATCH] x86: EFI_PAGE_SHIFT fix

[H. Peter Anvin]

Ingo Molnar wrote:
> * Huang, Ying <ying.huang@xxxxxxxxx> wrote:
>
> > Make x86 EFI code works when EFI_PAGE_SHIFT != PAGE_SHIFT. The 
> > memrage_efi_to_native() provided in this patch can be used on other 
> > EFI platform such as IA64 too.
> >
> > This patch has been tested on Intel x86_64 platform with EFI 64/32 
> > firmware.
>
> this is mostly cosmetic, isnt it - because currently nobody expects 
> EFI_PAGE_SHIFT and PAGE_SHIFT to ever change on x86, right? I've queued 
> up your patch for 2.6.26, ok?

There keeps being a lot of talk about a larger x86 pagesize, either 
involving future hardware support or via page clustering in the kernel.

Going beyond a 48-bit address space (in long mode) may mean increasing 
the page size.

	-hpa
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