Re: [PATCH 2/3] sparc64: 5-Level page table support for sparc

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On 7/20/2017 1:25 PM, David Miller wrote:
From: Allen Pais <allen.pais@xxxxxxxxxx>
Date: Thu, 20 Jul 2017 13:10:36 +0530

From: Vijay Kumar <vijay.ac.kumar@xxxxxxxxxx>

Added 5-Level paging for sparc.

Signed-off-by: Vijay Kumar <vijay.ac.kumar@xxxxxxxxxx>
Reviewed-by: Bob Picco <bob.picco@xxxxxxxxxx>
Signed-off-by: Allen Pais <allen.pais@xxxxxxxxxx>
So for one chip, we're going to unconditonally eat an entire
level of page table traversal on every PTE lookup?

Either stick to what 4-level page tables support for M8 or
make it run time selectable.

Thanks.

I will look into it. Thanks for your input.

Thanks,
Vijay
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