Re: The 3G (or nG) Kernel Memory Space Offset

[Jeremy Fitzhardinge]

Jan Engelhardt wrote:
> Since it's all just virtual addresses, is the TLB flush really that much 
> different when kernelspace runs from (virtual) 0x00000000-0x3FFFFFFF rather 
> than (virtual)0xC000000-0xFFFFFFFF?
>   

If kernel and userspace are disjoint, they can be in the same address 
space, so there's no need for a TLB flush at all.

   J
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