RE: [patch 0/4] ia64 SPARSEMEM

David Mosberger
2005-06-01T22:48:54Z

>>>>> On Tue, 31 May 2005 11:14:22 -0700, Dave Hansen <haveblue@us.ibm.com> said:

Dave> The pagetables that are walked in the TLB miss handler (for
Dave> vmem_map[]) could just as easily be a set of two-level
Dave> mem_section tables that are walked in software.

SPARSEMEM might be a lot more interesting if it could "degenerate"
into VIRTUAL_MEM_MAP. That is, on platforms with enough virtual
space, you should be able to let the hardware/MMU-subsystem do the
translation.

--david