Re: [PATCH v2 0/3] iommu/io-pgtable-arm-v7s: Use DMA32 zone for page tables

From: Christopher Lameter
Date: Wed Nov 21 2018 - 13:20:05 EST


On Sun, 11 Nov 2018, Nicolas Boichat wrote:

> This is a follow-up to the discussion in [1], to make sure that the page
> tables allocated by iommu/io-pgtable-arm-v7s are contained within 32-bit
> physical address space.

Page tables? This means you need a page frame? Why go through the slab
allocators?