Re: Question regarding x86_64 __PHYSICAL_MASK_SHIFT

[Tejun Heo]

 Sorry, corrections.

On Tue, Oct 04, 2005 at 08:59:48PM +0900, Tejun Heo wrote:
> 
>  Hello, Andi.
> 
>  In include/asm-x86_64/page.h, __VIRTUAL_MASK_SHIFT is defined as 48 
> bits which is the size of virtual address space on current x86_64 
> machines as used as such.  OTOH, __PHYSICAL_MASK_SHIFT is defined as 46 
           and used as such.
> and used as mask shift for physical page address (i.e. physaddr >> 12).
                             physical page number (i.e. physaddr >> 12).

 Sorry about extra noise, I gotta eat something, feeling dizzy.  :-)

-- 
tejun
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