Messages in this thread | | | Date | Mon, 25 Feb 2008 10:19:13 -0800 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86: EFI_PAGE_SHIFT fix |
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Ingo Molnar wrote: > * Huang, Ying <ying.huang@intel.com> 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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