linux-kernel - [PATCH RFC 0/3] iommu/io-pgtable-arm-v7s: Use DMA32 zone for page tables

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Fri,  9 Nov 2018 16:24:45 +0800
From:   Nicolas Boichat <drinkcat@...omium.org>
To:     Robin Murphy <robin.murphy@....com>
Cc:     Will Deacon <will.deacon@....com>, Joerg Roedel <joro@...tes.org>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Michal Hocko <mhocko@...e.com>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Levin Alexander <alexander.levin@...izon.com>,
        Huaisheng Ye <yehs1@...ovo.com>,
        Mike Rapoport <rppt@...ux.vnet.ibm.com>,
        linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, Yong Wu <yong.wu@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Tomasz Figa <tfiga@...gle.com>, yingjoe.chen@...iatek.com
Subject: [PATCH RFC 0/3] iommu/io-pgtable-arm-v7s: Use DMA32 zone for page tables

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.

[1] https://lists.linuxfoundation.org/pipermail/iommu/2018-November/030876.html

Nicolas Boichat (3):
  mm: When CONFIG_ZONE_DMA32 is set, use DMA32 for SLAB_CACHE_DMA
  include/linux/gfp.h: Add __get_dma32_pages macro
  iommu/io-pgtable-arm-v7s: Request DMA32 memory, and improve debugging

 drivers/iommu/io-pgtable-arm-v7s.c |  6 ++++--
 include/linux/gfp.h                |  2 ++
 include/linux/slab.h               | 13 ++++++++++++-
 mm/slab.c                          |  2 +-
 mm/slub.c                          |  2 +-
 5 files changed, 20 insertions(+), 5 deletions(-)

-- 
2.19.1.930.g4563a0d9d0-goog