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

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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• References:
  • The 3G (or nG) Kernel Memory Space Offset
    • From: "Dong Feng" <[email protected]>
  • Re: The 3G (or nG) Kernel Memory Space Offset
    • From: Jan Engelhardt <[email protected]>
  • Re: The 3G (or nG) Kernel Memory Space Offset
    • From: "Dong Feng" <[email protected]>
  • Re: The 3G (or nG) Kernel Memory Space Offset
    • From: Arjan van de Ven <[email protected]>
  • Re: The 3G (or nG) Kernel Memory Space Offset
    • From: Jan Engelhardt <[email protected]>

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