about NKPT on amd64

fuzhli fuzhli1007 at gmail.com
Wed Mar 30 07:19:04 UTC 2011

Hi, Alan
     I'm study the "Revision 187465" : "Prepare for a larger kernel virtual
address space". After read some relative source code, I have an question
about the macro NKPT on amd64: why 32 is enough for the kernel page table
pages? Do it means that the range (KERNBASE, virtual_avail) should always
less than 64MB( 32 * 2MB)?

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