Re: [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL

Andi Kleen
2007-04-02T17:14:24Z

> No no no. For the gazillions time: All of 1-1 mapped kernel memory on
> x86_64 needs a 2 MB page table entry. The virtual memmap uses the same.
> There are *no* additional TLBs used.

But why do you reserve an own virtual area then if you claim to not use any
additional mappings?

-Andi